110 results on '"Charytan, C"'
Search Results
2. The Benefits of Long-Life Tubing in Continuous Ambulatory Peritoneal Dialysis
- Author
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Charytan, C., Reyad, S., Galler, M., Spinowitz, B. S., Avram, Morrell M., editor, Giordano, Carmelo, editor, DeSanto, Natale G., editor, Mittman, Neal, editor, Bazzato, Giorgio, editor, Fein, Paul A., editor, Gan, Amado, editor, Goldwasser, Philip, editor, and Slater, Paul A., editor
- Published
- 1990
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3. PREDICTION OF SINGLE-POOL Kt/V (spKt/V) BASED ON CLINICAL AND HEMODIALYSIS (HD) VARIABLES USING MULTILINEAR REGRESSION (LM), TREE-BASED MODEL (TBM), AND ARTIFICIAL NEURAL NETWORKS (ANN).
- Author
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Goldfarb-Rumyantzev, A., Liu, S., Schwenk, M. H., Charytan, C., and Spinowitz, B. S.
- Published
- 2001
4. Effect of Cinacalcet on Cardiovascular Disease in Patients Undergoing Dialysis
- Author
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Chertow GM, Block GA, Correa-Rotter R, Drüeke TB, Floege J, Goodman WG, Herzog CA, Kubo Y, London GM, Mahaffey KW, Mix TC, Moe SM, Trotman ML, Wheeler DC, Parfrey PS., Evolve Team, Chertow G, Parfrey P, Block G, Drüeke T, Goodman W, Herzog C, London G, Mahaffey K, Moe S, Wheeler D, Hennekens C, Baigent C, Brown W, O'Brien P, Anderson S, Hoel J, Szczech L, Patel U, Wampole J, Pun P, Felker M, Inrig J, Shah S, Hernandez A, Patel C, Brennan M, Albizem M, Capper E, Cauchi L, Cheng S, Dehmel B, Dhami K, Durham C, Francioni M, Gadd S, Goodman B, Guimaraes L, Grey N, Hamlin R, Harris C, Harris E, Heavey S, Heiges T, Heiser D, Jaeger P, James M, James P, Karimi S, Kewalramani R, Kraszewski A, Liang J, Maguire J, McCormick K, McFarlane K, Mix C, Modafferi D, Prathikanti R, Ryan C, Santiago N, Schumacher J, Seder C, Shahinfar S, Soares B, Stolman D, Tisher C, Trotman M, Tseng S, Ulias G, Unger P, Vyshenskaya A, Walsh L, White C, Wilde K, Santos J, Zarazaga C, Marin I, Garrote N, Cusumano A, Penalba N, Del Valle E, Juncos L, Saye J, Lef L, Altobelli V, Petraglia G, Rosa-Diez G, Douthat W, Lobo J, Gallart C, Lafalla A, Diez G, Linares B, Lopez N, Ramirez N, Gonzalez R, Valtuille R, Beresan H, Hermida O, Rudolf G, Marchetta N, Rano M, Ramirez M, Garcia N, Gillies A, Jones B, Pedagogos E, Walker R, Talaulikar G, Bannister K, Suranyi M, Kark A, Roger S, Kerr P, Disney A, Mount P, Fraenkel M, Mathew M, Fassett R, Jose M, Hawley C, Lonergan M, Mackie J, Ferrari P, Menahem S, Sabto J, Hutchison B, Langham R, Pollock C, Holzer H, Oberbauer R, Arias I, Graf H, Mayer G, Lhotta K, Neyer U, Klauser-Braun R, Hoerl W, Horn S, Kovarik J, Kramar R, Eigner M, Dhaene M, Billiouw J, De Meester J, Warling X, Cambier-Dwelschauwers P, Evenepoel P, Daelemans R, Dratwa M, Maes B, Stolear J, Dejagere T, Vanwalleghem J, Bouman K, Jadoul M, Peeters J, Vanholder R, Tielemans C, Donck J, Almeida F, de Oliveira J, Burdmann E, Garcia V, Thome F, Deboni L, Bregman R, Lugon J, Araújo S, Ferreira Filho S, Daher Ede F, Baptista M, Carvalho A, d'Avila D, Moyses Neto M, Yu L, Bastos M, Lacativa P, Jorgetti V, Romão Ede A, da Costa JC, Pecoits Filho R, Gordan P, Salgado N, Araújo M, Coelho S, Oliveira I, Moysés R, Vasconcellos L, Batista P, Gross J, Pedrosa A, Cournoyer S, LeBlanc M, Chow S, Karunakaran S, Wong G, Tobe S, Desmeules S, Zimmerman D, Murphy S, Montambault P, Donnelly S, MacRae J, Culleton B, Soroka S, Rabbat C, Jindal K, Vasilevsky M, Michaud M, Wijeyesinghe E, Zacharias J, Lok C, Muirhead N, Verrelli M, Da Roza G, Sapir D, Olgaard K, Daugaard H, Brandi L, Jensen P, Boulechfar H, Ang K, Simon P, Rieu P, Brunet P, Touchard G, Torres P, Combe C, Durrbach A, Ortiz J, Hannedouche T, Vela C, Lionet A, Ryckelynck P, Zaoui P, Choukroun G, Fessi H, Lang P, Stroumza P, Joly D, Mousson C, Laville M, Dellanna F, Erley C, Braun J, Rambausek M, Riegel W, Klingberg M, Schwertfeger E, Wizemann V, Eckardt K, Reichel H, Passauer J, Hübel E, Frischmuth N, Liebl R, Fiedler R, Schwenger V, Voßkühler A, Kunzendorf U, Renders L, Rattensberger D, Rump L, Ketteler M, Neumayer H, Zantvoort F, Stahl R, Ladanyi E, Braun B, Kulcsar I, Mezei I, Csiky B, Rikker C, Arkossy O, Berta K, Szegedi J, Major L, Ferenczi S, Fekete A, Szabo T, Zakar G, Wagner G, Erdelyine S, Borbas B, Eustace J, Reddan D, Capasso G, Locatelli F, Villa G, Cozzolino M, Brancaccio D, Messa P, Bolasco P, Ricciardi B, Malberti F, Moriero E, Cannella G, Ortalda V, Stefoni S, Frascà G, Cappelli G, Albertazzi A, Zoccali C, Farina M, Elli A, Avella F, Ondei P, Mingardi G, Errico R, Losito A, Di Giulio S, Pertosa G, Schena F, Grandaliano G, Gesualdo L, Auricchio M, Bochicchio-Ricardelli T, Correa-Rotter J, Verástegui F, Peña J, Wong A, Cruz-Valdez J, Zamora M, Solis M, Diaz M, Flores M, Sandoval E, van den Dorpel M, Brink H, Van Kuijk W, Vermeij C, Gregoor P, Hagen E, van der Sande F, Klinger M, Nowicki M, Muszytowski M, Bidas K, Bentkowski W, Wiecek A, Ksiazek A, Marczewski K, Ostrowski M, Switalski M, Sulowicz W, Matuszkiewicz-Rowinska J, Mysliwiec M, Durlik M, Rutkowski B, Macario F, Carvalho B, Frazao J, Machado D, Weigert A, Andrusev A, Khrustalev O, Zemtchenkov A, Gurevich K, Staroselsky K, Khadikova N, Rozhinskaya L, Timokhovskaya G, Strokov A, Balkarova O, Ermolenko V, Kolmakova E, Komandenko M, Timofeev M, Shilo V, Shostka G, Smirnov A, Anashkin V, Volgina G, Domashenko O, Gurevich A, Perlin D, García J, Ribes E, Piera E, Lucas M, Galicia M, Prados M, González M, Romero R, de Francisco ÁM, Montenegro J, Santiago C, García F, de La Ossa J, Arrieta J, Pons J, Martín-Malo A, Amigó J, Cases A, Sterner G, Jensen G, Wikström B, Jacobson S, Lund U, Weiss L, Ståhl A, von Albertini B, Burnier M, Meier P, Martin P, Uehlinger D, Dickenmann M, Yaqoob M, Zehnder D, Kalra P, Padmanabhan N, Roe S, Eadington D, Pritchard N, Hutchison A, Davies S, Wilkie M, Davies M, Pai P, Swift P, Kwan J, Goldsmith D, Tomson C, Stratton J, Dasgupta I, Sarkar S, Moustafa M, Gandhi K, Jamal A, Galindo-Ramos E, Tuazon J, Batlle D, Tucker K, Schiller-Moran B, Assefi A, Martinez C, Samuels L, Goldman J, Cangiano-Rivera J, Darwish R, Lee M, Topf J, Kapatkin K, Baer H, Kopelman R, Acharya M, Tharpe D, Bernardo M, Nader P, Guzman-Rivera J, Pergola P, Sekkarie M, Alas E, Zager P, Liss K, Navarro J, Roppolo M, Denu-Ciocca C, Kshirsagar A, El Khatib M, Kant K, Scott D, Murthyr B, Finkelstein F, Keightley G, McCrary R, Pitone J, Cavalieri T, Tsang A, Pellegrino B, Schmidt R, Ahmad S, Brown C, Friedman E, Mittman N, Fadem S, Shapiro W, Reddy M, Goldberger S, Woredekal Y, Agarwal A, Anger M, Haque M, Chidester P, Kohli R, Rubinstein S, Newman G, Gladish R, Ayodeji O, Soman S, Sprague S, Hunt N, Gehr T, Rizk D, Warnock D, Polack D, Pahl M, Fischer D, Dreyer P, James G, Husserl F, Rogers T, Raff A, Sedor J, Silver M, Smith M, Steinberg S, DelGiorno T, Jones E, Cunha P, Cheng J, Pogue V, Blumenthal S, Brown E, Charytan C, Buerkert J, Cook M, Felsenfeld A, Tareen N, Gupta A, Herman T, Diamond S, Hura C, Laski M, MacLaurin J, Plumb T, Brosnahan G, Kumar J, Henriquez M, Poole C, Osanloo E, Matalon A, Sholer C, Arfeen S, Azer M, Belledonne M, Gross M, Dunnigan E, McConnell K, Becker B, Rigolosi R, Spiegel D, Stegman M, Patak R, Streja D, Ranjit U, Youell T, Wooldridge T, Stafford C, Cottiero R, Weinberg M, Schonefeld M, Shahmir E, Hazzan A, Ashfaq A, Bhandari K, Cleveland W, Culpepper M, Golden J, Lai L, Lien Y, Lorica V, Robertson J, Malireddi K, Morse S, Thakur V, Israelit A, Raguram P, Alfred H, Weise W, Al-Saghir F, El Shahawy M, Rastogi A, Nissenson A, Kopyt N, Lynn R, Lea J, McClellan W, Teredesai P, Ong S, Tolkan S, Sugihara J, Minga T, Mehrotra R, Minasian R, Bhatia D, Specter R, Capelli J, Sidhu P, Dalal S, Dykes P, Khan M, Rahim F, Saklayen M, Thomas A, Michael B, Torres M, Al-Bander H, Murray B, Abukurah A, Gupta B, Nosrati S, Raja R, Zeig S, Braun M, Amatya A, Endsley J, Sharon Z, Dolson G, Dumler F, Ntoso K, Rosansky S, Kumar N, Gura V, Thompson N, Goldfarb D, Halligan R, Middleton J, Widerhorn A, Arbeit L, Arruda J, Crouch T, Friedman L, Khokhar S, Mittleman J, Light P, Taparia B, West C, Cotton J, Dhingra R, Kleinman L, Arif F, Lew S, Nammour T, Sterrett J, Williams M, Ramirez J, Rubin J, McCarthy J, Noble S, Chaffin M, Rekhi A., Chertow, Gm, Block, Ga, Correa-Rotter, R, Drüeke, Tb, Floege, J, Goodman, Wg, Herzog, Ca, Kubo, Y, London, Gm, Mahaffey, Kw, Mix, Tc, Moe, Sm, Trotman, Ml, Wheeler, Dc, Parfrey, Ps., Evolve, Team, Chertow, G, Parfrey, P, Block, G, Drüeke, T, Goodman, W, Herzog, C, London, G, Mahaffey, K, Moe, S, Wheeler, D, Hennekens, C, Baigent, C, Brown, W, O'Brien, P, Anderson, S, Hoel, J, Szczech, L, Patel, U, Wampole, J, Pun, P, Felker, M, Inrig, J, Shah, S, Hernandez, A, Patel, C, Brennan, M, Albizem, M, Capper, E, Cauchi, L, Cheng, S, Dehmel, B, Dhami, K, Durham, C, Francioni, M, Gadd, S, Goodman, B, Guimaraes, L, Grey, N, Hamlin, R, Harris, C, Harris, E, Heavey, S, Heiges, T, Heiser, D, Jaeger, P, James, M, James, P, Karimi, S, Kewalramani, R, Kraszewski, A, Liang, J, Maguire, J, Mccormick, K, Mcfarlane, K, Mix, C, Modafferi, D, Prathikanti, R, Ryan, C, Santiago, N, Schumacher, J, Seder, C, Shahinfar, S, Soares, B, Stolman, D, Tisher, C, Trotman, M, Tseng, S, Ulias, G, Unger, P, Vyshenskaya, A, Walsh, L, White, C, Wilde, K, Santos, J, Zarazaga, C, Marin, I, Garrote, N, Cusumano, A, Penalba, N, Del Valle, E, Juncos, L, Saye, J, Lef, L, Altobelli, V, Petraglia, G, Rosa-Diez, G, Douthat, W, Lobo, J, Gallart, C, Lafalla, A, Diez, G, Linares, B, Lopez, N, Ramirez, N, Gonzalez, R, Valtuille, R, Beresan, H, Hermida, O, Rudolf, G, Marchetta, N, Rano, M, Ramirez, M, Garcia, N, Gillies, A, Jones, B, Pedagogos, E, Walker, R, Talaulikar, G, Bannister, K, Suranyi, M, Kark, A, Roger, S, Kerr, P, Disney, A, Mount, P, Fraenkel, M, Mathew, M, Fassett, R, Jose, M, Hawley, C, Lonergan, M, Mackie, J, Ferrari, P, Menahem, S, Sabto, J, Hutchison, B, Langham, R, Pollock, C, Holzer, H, Oberbauer, R, Arias, I, Graf, H, Mayer, G, Lhotta, K, Neyer, U, Klauser-Braun, R, Hoerl, W, Horn, S, Kovarik, J, Kramar, R, Eigner, M, Dhaene, M, Billiouw, J, De Meester, J, Warling, X, Cambier-Dwelschauwers, P, Evenepoel, P, Daelemans, R, Dratwa, M, Maes, B, Stolear, J, Dejagere, T, Vanwalleghem, J, Bouman, K, Jadoul, M, Peeters, J, Vanholder, R, Tielemans, C, Donck, J, Almeida, F, de Oliveira, J, Burdmann, E, Garcia, V, Thome, F, Deboni, L, Bregman, R, Lugon, J, Araújo, S, Ferreira Filho, S, Daher Ede, F, Baptista, M, Carvalho, A, D'Avila, D, Moyses Neto, M, Yu, L, Bastos, M, Lacativa, P, Jorgetti, V, Romão Ede, A, da Costa, Jc, Pecoits Filho, R, Gordan, P, Salgado, N, Araújo, M, Coelho, S, Oliveira, I, Moysés, R, Vasconcellos, L, Batista, P, Gross, J, Pedrosa, A, Cournoyer, S, Leblanc, M, Chow, S, Karunakaran, S, Wong, G, Tobe, S, Desmeules, S, Zimmerman, D, Murphy, S, Montambault, P, Donnelly, S, Macrae, J, Culleton, B, Soroka, S, Rabbat, C, Jindal, K, Vasilevsky, M, Michaud, M, Wijeyesinghe, E, Zacharias, J, Lok, C, Muirhead, N, Verrelli, M, Da Roza, G, Sapir, D, Olgaard, K, Daugaard, H, Brandi, L, Jensen, P, Boulechfar, H, Ang, K, Simon, P, Rieu, P, Brunet, P, Touchard, G, Torres, P, Combe, C, Durrbach, A, Ortiz, J, Hannedouche, T, Vela, C, Lionet, A, Ryckelynck, P, Zaoui, P, Choukroun, G, Fessi, H, Lang, P, Stroumza, P, Joly, D, Mousson, C, Laville, M, Dellanna, F, Erley, C, Braun, J, Rambausek, M, Riegel, W, Klingberg, M, Schwertfeger, E, Wizemann, V, Eckardt, K, Reichel, H, Passauer, J, Hübel, E, Frischmuth, N, Liebl, R, Fiedler, R, Schwenger, V, Voßkühler, A, Kunzendorf, U, Renders, L, Rattensberger, D, Rump, L, Ketteler, M, Neumayer, H, Zantvoort, F, Stahl, R, Ladanyi, E, Braun, B, Kulcsar, I, Mezei, I, Csiky, B, Rikker, C, Arkossy, O, Berta, K, Szegedi, J, Major, L, Ferenczi, S, Fekete, A, Szabo, T, Zakar, G, Wagner, G, Erdelyine, S, Borbas, B, Eustace, J, Reddan, D, Capasso, G, Locatelli, F, Villa, G, Cozzolino, M, Brancaccio, D, Messa, P, Bolasco, P, Ricciardi, B, Malberti, F, Moriero, E, Cannella, G, Ortalda, V, Stefoni, S, Frascà, G, Cappelli, G, Albertazzi, A, Zoccali, C, Farina, M, Elli, A, Avella, F, Ondei, P, Mingardi, G, Errico, R, Losito, A, Di Giulio, S, Pertosa, G, Schena, F, Grandaliano, G, Gesualdo, L, Auricchio, M, Bochicchio-Ricardelli, T, Correa-Rotter, J, Verástegui, F, Peña, J, Wong, A, Cruz-Valdez, J, Zamora, M, Solis, M, Diaz, M, Flores, M, Sandoval, E, van den Dorpel, M, Brink, H, Van Kuijk, W, Vermeij, C, Gregoor, P, Hagen, E, van der Sande, F, Klinger, M, Nowicki, M, Muszytowski, M, Bidas, K, Bentkowski, W, Wiecek, A, Ksiazek, A, Marczewski, K, Ostrowski, M, Switalski, M, Sulowicz, W, Matuszkiewicz-Rowinska, J, Mysliwiec, M, Durlik, M, Rutkowski, B, Macario, F, Carvalho, B, Frazao, J, Machado, D, Weigert, A, Andrusev, A, Khrustalev, O, Zemtchenkov, A, Gurevich, K, Staroselsky, K, Khadikova, N, Rozhinskaya, L, Timokhovskaya, G, Strokov, A, Balkarova, O, Ermolenko, V, Kolmakova, E, Komandenko, M, Timofeev, M, Shilo, V, Shostka, G, Smirnov, A, Anashkin, V, Volgina, G, Domashenko, O, Gurevich, A, Perlin, D, García, J, Ribes, E, Piera, E, Lucas, M, Galicia, M, Prados, M, González, M, Romero, R, de Francisco, Ám, Montenegro, J, Santiago, C, García, F, de La Ossa, J, Arrieta, J, Pons, J, Martín-Malo, A, Amigó, J, Cases, A, Sterner, G, Jensen, G, Wikström, B, Jacobson, S, Lund, U, Weiss, L, Ståhl, A, von Albertini, B, Burnier, M, Meier, P, Martin, P, Uehlinger, D, Dickenmann, M, Yaqoob, M, Zehnder, D, Kalra, P, Padmanabhan, N, Roe, S, Eadington, D, Pritchard, N, Hutchison, A, Davies, S, Wilkie, M, Davies, M, Pai, P, Swift, P, Kwan, J, Goldsmith, D, Tomson, C, Stratton, J, Dasgupta, I, Sarkar, S, Moustafa, M, Gandhi, K, Jamal, A, Galindo-Ramos, E, Tuazon, J, Batlle, D, Tucker, K, Schiller-Moran, B, Assefi, A, Martinez, C, Samuels, L, Goldman, J, Cangiano-Rivera, J, Darwish, R, Lee, M, Topf, J, Kapatkin, K, Baer, H, Kopelman, R, Acharya, M, Tharpe, D, Bernardo, M, Nader, P, Guzman-Rivera, J, Pergola, P, Sekkarie, M, Alas, E, Zager, P, Liss, K, Navarro, J, Roppolo, M, Denu-Ciocca, C, Kshirsagar, A, El Khatib, M, Kant, K, Scott, D, Murthyr, B, Finkelstein, F, Keightley, G, Mccrary, R, Pitone, J, Cavalieri, T, Tsang, A, Pellegrino, B, Schmidt, R, Ahmad, S, Brown, C, Friedman, E, Mittman, N, Fadem, S, Shapiro, W, Reddy, M, Goldberger, S, Woredekal, Y, Agarwal, A, Anger, M, Haque, M, Chidester, P, Kohli, R, Rubinstein, S, Newman, G, Gladish, R, Ayodeji, O, Soman, S, Sprague, S, Hunt, N, Gehr, T, Rizk, D, Warnock, D, Polack, D, Pahl, M, Fischer, D, Dreyer, P, James, G, Husserl, F, Rogers, T, Raff, A, Sedor, J, Silver, M, Smith, M, Steinberg, S, Delgiorno, T, Jones, E, Cunha, P, Cheng, J, Pogue, V, Blumenthal, S, Brown, E, Charytan, C, Buerkert, J, Cook, M, Felsenfeld, A, Tareen, N, Gupta, A, Herman, T, Diamond, S, Hura, C, Laski, M, Maclaurin, J, Plumb, T, Brosnahan, G, Kumar, J, Henriquez, M, Poole, C, Osanloo, E, Matalon, A, Sholer, C, Arfeen, S, Azer, M, Belledonne, M, Gross, M, Dunnigan, E, Mcconnell, K, Becker, B, Rigolosi, R, Spiegel, D, Stegman, M, Patak, R, Streja, D, Ranjit, U, Youell, T, Wooldridge, T, Stafford, C, Cottiero, R, Weinberg, M, Schonefeld, M, Shahmir, E, Hazzan, A, Ashfaq, A, Bhandari, K, Cleveland, W, Culpepper, M, Golden, J, Lai, L, Lien, Y, Lorica, V, Robertson, J, Malireddi, K, Morse, S, Thakur, V, Israelit, A, Raguram, P, Alfred, H, Weise, W, Al-Saghir, F, El Shahawy, M, Rastogi, A, Nissenson, A, Kopyt, N, Lynn, R, Lea, J, Mcclellan, W, Teredesai, P, Ong, S, Tolkan, S, Sugihara, J, Minga, T, Mehrotra, R, Minasian, R, Bhatia, D, Specter, R, Capelli, J, Sidhu, P, Dalal, S, Dykes, P, Khan, M, Rahim, F, Saklayen, M, Thomas, A, Michael, B, Torres, M, Al-Bander, H, Murray, B, Abukurah, A, Gupta, B, Nosrati, S, Raja, R, Zeig, S, Braun, M, Amatya, A, Endsley, J, Sharon, Z, Dolson, G, Dumler, F, Ntoso, K, Rosansky, S, Kumar, N, Gura, V, Thompson, N, Goldfarb, D, Halligan, R, Middleton, J, Widerhorn, A, Arbeit, L, Arruda, J, Crouch, T, Friedman, L, Khokhar, S, Mittleman, J, Light, P, Taparia, B, West, C, Cotton, J, Dhingra, R, Kleinman, L, Arif, F, Lew, S, Nammour, T, Sterrett, J, Williams, M, Ramirez, J, Rubin, J, Mccarthy, J, Noble, S, Chaffin, M, and Rekhi, A.
- Subjects
Adult ,Male ,Dialysis ,Cinacalcet ,Cardiovascular Disease ,medicine.medical_specialty ,Calcimimetic ,medicine.medical_treatment ,Naphthalenes ,Coronary artery disease ,Renal Dialysis ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Intensive care medicine ,Aged ,Etelcalcetide ,Hyperparathyroidism ,Hypocalcemia ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Intention to Treat Analysis ,Cardiovascular Diseases ,Parathyroid Hormone ,Cinacalcet Hydrochloride ,Kidney Failure, Chronic ,Female ,Hyperparathyroidism, Secondary ,Secondary hyperparathyroidism ,business ,medicine.drug - Abstract
Disorders of mineral metabolism, including secondary hyperparathyroidism, are thought to contribute to extraskeletal (including vascular) calcification among patients with chronic kidney disease. It has been hypothesized that treatment with the calcimimetic agent cinacalcet might reduce the risk of death or nonfatal cardiovascular events in such patients.In this clinical trial, we randomly assigned 3883 patients with moderate-to-severe secondary hyperparathyroidism (median level of intact parathyroid hormone, 693 pg per milliliter [10th to 90th percentile, 363 to 1694]) who were undergoing hemodialysis to receive either cinacalcet or placebo. All patients were eligible to receive conventional therapy, including phosphate binders, vitamin D sterols, or both. The patients were followed for up to 64 months. The primary composite end point was the time until death, myocardial infarction, hospitalization for unstable angina, heart failure, or a peripheral vascular event. The primary analysis was performed on the basis of the intention-to-treat principle.The median duration of study-drug exposure was 21.2 months in the cinacalcet group, versus 17.5 months in the placebo group. The primary composite end point was reached in 938 of 1948 patients (48.2%) in the cinacalcet group and 952 of 1935 patients (49.2%) in the placebo group (relative hazard in the cinacalcet group vs. the placebo group, 0.93; 95% confidence interval, 0.85 to 1.02; P=0.11). Hypocalcemia and gastrointestinal adverse events were significantly more frequent in patients receiving cinacalcet.In an unadjusted intention-to-treat analysis, cinacalcet did not significantly reduce the risk of death or major cardiovascular events in patients with moderate-to-severe secondary hyperparathyroidism who were undergoing dialysis. (Funded by Amgen; EVOLVE ClinicalTrials.gov number, NCT00345839.).
- Published
- 2012
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5. Cinacalcet, fibroblast growth factor-23, and cardiovascular disease in hemodialysis: The evaluation of cinacalcet HCl therapy to lower cardiovascular events (EVOLVE) trial
- Author
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Moe S. M., Chertow G. M., Parfrey P. S., Kubo Y., Block G. A., Correa-Rotter R., Drueke T. B., Herzog C. A., London G. M., Mahaffey K. W., Wheeler D. C., Stolina M., Dehmel B., Goodman W. G., Floege J., Santos J., Najun Zarazaga C., Marin I., Garrote N., Cusumano A., Penalba N., Del Valle E., Juncos L., Martinez Saye J., Lef L., Altobelli V., Petraglia G., Rosa Diez G., Douthat W., Lobo J., Gallart C., Lafalla A., Diez G., Linares B., Lopez N., Ramirez N., Gonzalez R., Valtuille R., Beresan H., Hermida O., Rudolf G., Marchetta N., Rano M., Ramirez M., Garcia N., Gillies A., Jones B., Pedagogos E., Walker R., Talaulikar G., Bannister K., Suranyi M., Kark A., Roger S., Kerr P., Disney A., Mount P., Fraenkel M., Mathew M., Fassett R., Jose M., Hawley C., Lonergan M., Mackie J., Ferrari P., Menahem S., Sabto J., Hutchison B., Langham R., Pollock C., Holzer H., Oberbauer R., Arias I., Graf H., Mayer G., Lhotta K., Neyer U., Klauser R., Hoerl W., Horn S., Kovarik J., Kramar R., Eigner M., Dhaene M., Billiouw J., De Meester J., Warling X., Cambier-Dwelschauwers P., Evenepoel P., Daelemans R., Dratwa M., Maes B., Stolear J., Dejagere T., Vanwalleghem J., Bouman K., Jadoul M., Peeters J., Vanholder R., Tielemans C., Donck J., Almeida F., Picollo De Oliveira J., Burdmann E., Garcia V., Saldanha Thome F., Deboni L., Bregman R., Lugon J., Araujo S., Ferreira Filho S., De Francesco Daher E., Sperto Baptista M., Carvalho A., D'Avila D., Moyses Neto M., Yu L., Bastos M., Sampaio Lacativa P., Jorgetti V., De Almeida Romao E., Cardeal Da Costa J., Pecoits Filho R., Gordan P., Salgado N., Teixeira Araujo M., Neiva Coelho S., Oliveira I., Moyses R., Vasconcellos L., Batista P., Luiz Gross J., Pedrosa A., Cournoyer S., LeBlanc M., Chow S., Karunakaran S., Wong G., Tobe S., Desmeules S., Zimmerman D., Murphy S., Montambault P., Donnelly S., MacRae J., Culleton B., Soroka S., Rabbat C., Jindal K., Vasilevsky M., Michaud M., Wijeyesinghe E., Zacharias J., Lok C., Muirhead N., Verrelli M., Da Roza G., Sapir D., Olgaard K., Daugaard H., Brandi L., Jensen P., Boulechfar H., Ang K., Simon P., Rieu P., Brunet P., Touchard G., Urena Torres P., Combe C., Durrbach A., Ortiz J., Hannedouche T., Vela C., Lionet A., Ryckelynck P., Zaoui P., Choukroun G., Fessi H., Lang P., Stroumza P., Joly D., Mousson C., Laville M., Dellanna F., Erley C., Braun J., Rambausek M., Riegel W., Klingberg M., Schwertfeger E., Wizemann V., Eckardt K., Reichel H., Passauer J., Hubel E., Frischmuth N., Liebl R., Fiedler R., Schwenger V., Vosskuhler A., Kunzendorf U., Renders L., Rattensberger D., Rump L., Ketteler M., Neumayer H., Zantvoort F., Stahl R., Ladanyi E., Kulcsar I., Mezei I., Csiky B., Rikker C., Arkossy O., Berta K., Szegedi J., Major L., Ferenczi S., Fekete A., Szabo T., Zakar G., Wagner G., Kazup Erdelyine S., Borbas B., Eustace J., Reddan D., Capasso G., Locatelli F., Villa G., Cozzolino M., Brancaccio D., Messa P., Bolasco P., Ricciardi B., Malberti F., Moriero E., Cannella G., Ortalda V., Stefoni S., Frasca G., Cappelli G., Albertazzi A., Zoccali C., Farina M., Elli A., Avella F., Ondei P., Mingardi G., Errico R., Losito A., Di Giulio S., Pertosa G., Schena F., 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R., Martin de Francisco A., Montenegro J., Santiago C., Garcia F., Alcazar De La Ossa J., Arrieta J., Pons J., Martin-Malo A., Soler Amigo J., Cases A., Sterner G., Jensen G., Wikstrom B., Jacobson S., Lund U., Weiss L., Stahl A., Von Albertini B., Burnier M., Meier P., Martin P., Uehlinger D., Dickenmann M., Yaqoob M., Zehnder D., Kalra P., Padmanabhan N., Roe S., Eadington D., Pritchard N., Hutchison A., Davies S., Wilkie M., Davies M., Pai P., Swift P., Kwan J., Goldsmith D., Tomson C., Stratton J., Dasgupta I., Sarkar S., Moustafa M., Gandhi K., Jamal A., Galindo-Ramos E., Tuazon J., Batlle D., Tucker K., Schiller-Moran B., Assefi A., Martinez C., Samuels L., Goldman J., Cangiano-Rivera J., Darwish R., Lee M., Topf J., Kapatkin K., Baer H., Kopelman R., Acharya M., Tharpe D., Bernardo M., Nader P., Guzman-Rivera J., Pergola P., Sekkarie M., Alas E., Zager P., Liss K., Navarro J., Roppolo M., Denu-Ciocca C., Kshirsagar A., El Khatib M., Kant K., Scott D., Murthyr B., Finkelstein F., 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M., Chertow, G. M., Parfrey, P. S., Kubo, Y., Block, G. A., Correa-Rotter, R., Drueke, T. B., Herzog, C. A., London, G. M., Mahaffey, K. W., Wheeler, D. C., Stolina, M., Dehmel, B., Goodman, W. G., Floege, J., Santos, J., Najun Zarazaga, C., Marin, I., Garrote, N., Cusumano, A., Penalba, N., Del Valle, E., Juncos, L., Martinez Saye, J., Lef, L., Altobelli, V., Petraglia, G., Rosa Diez, G., Douthat, W., Lobo, J., Gallart, C., Lafalla, A., Diez, G., Linares, B., Lopez, N., Ramirez, N., Gonzalez, R., Valtuille, R., Beresan, H., Hermida, O., Rudolf, G., Marchetta, N., Rano, M., Ramirez, M., Garcia, N., Gillies, A., Jones, B., Pedagogos, E., Walker, R., Talaulikar, G., Bannister, K., Suranyi, M., Kark, A., Roger, S., Kerr, P., Disney, A., Mount, P., Fraenkel, M., Mathew, M., Fassett, R., Jose, M., Hawley, C., Lonergan, M., Mackie, J., Ferrari, P., Menahem, S., Sabto, J., Hutchison, B., Langham, R., Pollock, C., Holzer, H., Oberbauer, R., Arias, I., Graf, H., Mayer, G., Lhotta, K., Neyer, U., Klauser, R., Hoerl, W., Horn, S., Kovarik, J., Kramar, R., Eigner, M., Dhaene, M., Billiouw, J., De Meester, J., Warling, X., Cambier-Dwelschauwers, P., Evenepoel, P., Daelemans, R., Dratwa, M., Maes, B., Stolear, J., Dejagere, T., Vanwalleghem, J., Bouman, K., Jadoul, M., Peeters, J., Vanholder, R., Tielemans, C., Donck, J., Almeida, F., Picollo De Oliveira, J., Burdmann, E., Garcia, V., Saldanha Thome, F., Deboni, L., Bregman, R., Lugon, J., Araujo, S., Ferreira Filho, S., De Francesco Daher, E., Sperto Baptista, M., Carvalho, A., D'Avila, D., Moyses Neto, M., Yu, L., Bastos, M., Sampaio Lacativa, P., Jorgetti, V., De Almeida Romao, E., Cardeal Da Costa, J., Pecoits Filho, R., Gordan, P., Salgado, N., Teixeira Araujo, M., Neiva Coelho, S., Oliveira, I., Moyses, R., Vasconcellos, L., Batista, P., Luiz Gross, J., Pedrosa, A., Cournoyer, S., Leblanc, M., Chow, S., Karunakaran, S., Wong, G., Tobe, S., Desmeules, S., Zimmerman, D., Murphy, S., Montambault, P., Donnelly, S., Macrae, J., Culleton, B., Soroka, S., Rabbat, C., Jindal, K., Vasilevsky, M., Michaud, M., Wijeyesinghe, E., Zacharias, J., Lok, C., Muirhead, N., Verrelli, M., Da Roza, G., Sapir, D., Olgaard, K., Daugaard, H., Brandi, L., Jensen, P., Boulechfar, H., Ang, K., Simon, P., Rieu, P., Brunet, P., Touchard, G., Urena Torres, P., Combe, C., Durrbach, A., Ortiz, J., Hannedouche, T., Vela, C., Lionet, A., Ryckelynck, P., Zaoui, P., Choukroun, G., Fessi, H., Lang, P., Stroumza, P., Joly, D., Mousson, C., Laville, M., Dellanna, F., Erley, C., Braun, J., Rambausek, M., Riegel, W., Klingberg, M., Schwertfeger, E., Wizemann, V., Eckardt, K., Reichel, H., Passauer, J., Hubel, E., Frischmuth, N., Liebl, R., Fiedler, R., Schwenger, V., Vosskuhler, A., Kunzendorf, U., Renders, L., Rattensberger, D., Rump, L., Ketteler, M., Neumayer, H., Zantvoort, F., Stahl, R., Ladanyi, E., Kulcsar, I., Mezei, I., Csiky, B., Rikker, C., Arkossy, O., Berta, K., Szegedi, J., Major, L., Ferenczi, S., Fekete, A., Szabo, T., Zakar, G., Wagner, G., Kazup Erdelyine, S., Borbas, B., Eustace, J., Reddan, D., Capasso, G., Locatelli, F., Villa, G., Cozzolino, M., Brancaccio, D., Messa, P., Bolasco, P., Ricciardi, B., Malberti, F., Moriero, E., Cannella, G., Ortalda, V., Stefoni, S., Frasca, G., Cappelli, G., Albertazzi, A., Zoccali, C., Farina, M., Elli, A., Avella, F., Ondei, P., Mingardi, G., Errico, R., Losito, A., Di Giulio, S., Pertosa, G., Schena, F., Grandaliano, G., Gesualdo, L., Auricchio, M., Bochicchio-Ricardelli, T., Aranda Verastegui, F., Pena, J., Chew Wong, A., Cruz-Valdez, J., Torres Zamora, M., Solis, M., Sebastian Diaz, M., Vital Flores, M., Alvarez Sandoval, E., Van Den Dorpel, M., Brink, H., Van Kuijk, W., Vermeij, C., Smak Gregoor, P., Hagen, E., Van Der Sande, F., Klinger, M., Nowicki, M., Muszytowski, M., Bidas, K., Bentkowski, W., Wiecek, A., Ksiazek, A., Marczewski, K., Ostrowski, M., Switalski, M., Sulowicz, W., Matuszkiewicz-Rowinska, J., Mysliwiec, M., Durlik, M., Rutkowski, B., Macario, F., Carvalho, B., Frazao, J., Machado, D., Weigert, A., Andrusev, A., Khrustalev, O., Zemtchenkov, A., Gurevich, K., Staroselsky, K., Khadikova, N., Rozhinskaya, L., Timokhovskaya, G., Strokov, A., Balkarova, O., Ermolenko, V., Kolmakova, E., Komandenko, M., Timofeev, M., Shilo, V., Shostka, G., Smirnov, A., Anashkin, V., Volgina, G., Domashenko, O., Gurevich, A., Perlin, D., Martinez Garcia, J., Andres Ribes, E., Coll Piera, E., Fernandez Lucas, M., Galicia, M., Prados, M., Gonzalez, M., Romero, R., Martin de Francisco, A., Montenegro, J., Santiago, C., Garcia, F., Alcazar De La Ossa, J., Arrieta, J., Pons, J., Martin-Malo, A., Soler Amigo, J., Cases, A., Sterner, G., Jensen, G., Wikstrom, B., Jacobson, S., Lund, U., Weiss, L., Stahl, A., Von Albertini, B., Burnier, M., Meier, P., Martin, P., Uehlinger, D., Dickenmann, M., Yaqoob, M., Zehnder, D., Kalra, P., Padmanabhan, N., Roe, S., Eadington, D., Pritchard, N., Hutchison, A., Davies, S., Wilkie, M., Davies, M., Pai, P., Swift, P., Kwan, J., Goldsmith, D., Tomson, C., Stratton, J., Dasgupta, I., Sarkar, S., Moustafa, M., Gandhi, K., Jamal, A., Galindo-Ramos, E., Tuazon, J., Batlle, D., Tucker, K., Schiller-Moran, B., Assefi, A., Martinez, C., Samuels, L., Goldman, J., Cangiano-Rivera, J., Darwish, R., Lee, M., Topf, J., Kapatkin, K., Baer, H., Kopelman, R., Acharya, M., Tharpe, D., Bernardo, M., Nader, P., Guzman-Rivera, J., Pergola, P., Sekkarie, M., Alas, E., Zager, P., Liss, K., Navarro, J., Roppolo, M., Denu-Ciocca, C., Kshirsagar, A., El Khatib, M., Kant, K., Scott, D., Murthyr, B., Finkelstein, F., Keightley, G., Mccrary, R., Pitone, J., Cavalieri, T., Tsang, A., Pellegrino, B., Schmidt, R., Ahmad, S., Brown, C., Friedman, E., Mittman, N., Fadem, S., Shapiro, W., Reddy, M., Goldberger, S., Woredekal, Y., Agarwal, A., Anger, M., Haque, M., Chidester, P., Kohli, R., Rubinstein, S., Newman, G., Gladish, R., Ayodeji, O., Soman, S., Sprague, S., Hunt, N., Gehr, T., Rizk, D., Warnock, D., Polack, D., Pahl, M., Fischer, D., Dreyer, P., James, G., Husserl, F., Rogers, T., Raff, A., Sedor, J., Silver, M., Smith, M., Steinberg, S., Delgiorno, T., Jones, E., Cunha, P. D., Cheng, J., Pogue, V., Blumenthal, S., Brown, E., Charytan, C., Buerkert, J., Cook, M., Felsenfeld, A., Tareen, N., Gupta, A., Herman, T., Diamond, S., Hura, C., Laski, M., Maclaurin, J., Plumb, T., Brosnahan, G., Kumar, J., Henriquez, M., Poole, C., Osanloo, E., Matalon, A., Sholer, C., Arfeen, S., Azer, M., Belledonne, M., Gross, M., Dunnigan, E., Mcconnell, K., Becker, B., Skinner, F., Rigolosi, R., Spiegel, D., Stegman, M., Patak, R., Streja, D., Ranjit, U., Youell, T., Wooldridge, T., Stafford, C., Cottiero, R., Weinberg, M., Schonefeld, M., Shahmir, E., Hazzan, A., Ashfaq, A., Bhandari, K., Cleveland, W., Culpepper, M., Golden, J., Lai, L., Lien, Y., Lorica, V., Robertson, J., Malireddi, K., Morse, S., Thakur, V., Israelit, A., Raguram, P., Alfred, H., Weise, W., Al-Saghir, F., El Shahawy, M., Rastogi, A., Nissenson, A., Kopyt, N., Lynn, R., Lea, J., Mcclellan, W., Teredesai, P., Ong, S., Tolkan, S., Sugihara, J., Minga, T., Mehrotra, R., Minasian, R., Bhatia, D., Specter, R., Capelli, J., Sidhu, P., Dalal, S., Dykes, P., Khan, M., Rahim, F., Saklayen, M., Thomas, A., Michael, B., Torres, M., Al-Bander, H., Murray, B., Abukurah, A., Gupta, B., Nosrati, S., Raja, R., Zeig, S., Braun, M., Amatya, A., Endsley, J., Sharon, Z., Dolson, G., Dumler, F., Ntoso, K., Rosansky, S., Kumar, N., Gura, V., Thompson, N., Goldfarb, D., Halligan, R., Middleton, J., Widerhorn, A., Arbeit, L., Arruda, J., Crouch, T., Friedman, L., Khokhar, S., Mittleman, J., Light, P., Taparia, B., West, C., Cotton, J., Dhingra, R., Kleinman, L., Arif, F., Lew, S., Nammour, T., Sterrett, J., Williams, M., Ramirez, J., Rubin, J., Mccarthy, J., Noble, S., Chaffin, M., Rekhi, A., and Clinical sciences
- Subjects
Adult ,Male ,Fibroblast growth factor 23 ,medicine.medical_specialty ,Cinacalcet ,Calcimimetic ,medicine.medical_treatment ,Naphthalenes ,Hyperthyroidism ,Gastroenterology ,ventricular remodeling ,Renal Dialysis ,Cinacalcet Hydrochloride ,Physiology (medical) ,Internal medicine ,medicine ,Humans ,renal insufficiency, chronic ,Aged ,Etelcalcetide ,calcium ,business.industry ,Research Support, Non-U.S. Gov't ,death, sudden, cardiac ,Middle Aged ,arrhythmias, cardiac ,Cardiovascular Diseases ,Female ,Fibroblast Growth Factors ,Cardiology and Cardiovascular Medicine ,medicine.disease ,Fibroblast Growth Factor-23 ,Endocrinology ,Randomized Controlled Trial ,Secondary hyperparathyroidism ,Hemodialysis ,business ,medicine.drug ,Kidney disease - Abstract
Background— Patients with kidney disease have disordered bone and mineral metabolism, including elevated serum concentrations of fibroblast growth factor-23 (FGF23). These elevated concentrations are associated with cardiovascular and all-cause mortality. The objective was to determine the effects of the calcimimetic cinacalcet (versus placebo) on reducing serum FGF23 and whether changes in FGF23 are associated with death and cardiovascular events. Methods and Results— This was a secondary analysis of a randomized clinical trial comparing cinacalcet to placebo in addition to conventional therapy (phosphate binders/vitamin D) in patients receiving hemodialysis with secondary hyperparathyroidism (intact parathyroid hormone ≥300 pg/mL). The primary study end point was time to death or a first nonfatal cardiovascular event (myocardial infarction, hospitalization for angina, heart failure, or a peripheral vascular event). This analysis included 2985 patients (77% of randomized) with serum samples at baseline and 2602 patients (67%) with samples at both baseline and week 20. The results demonstrated that a significantly larger proportion of patients randomized to cinacalcet had ≥30% (68% versus 28%) reductions in FGF23. Among patients randomized to cinacalcet, a ≥30% reduction in FGF23 between baseline and week 20 was associated with a nominally significant reduction in the primary composite end point (relative hazard, 0.82; 95% confidence interval, 0.69–0.98), cardiovascular mortality (relative hazard, 0.66; 95% confidence interval, 0.50–0.87), sudden cardiac death (relative hazard, 0.57; 95% confidence interval, 0.37–0.86), and heart failure (relative hazard, 0.69; 95% confidence interval, 0.48–0.99). Conclusions— Treatment with cinacalcet significantly lowers serum FGF23. Treatment-induced reductions in serum FGF23 are associated with lower rates of cardiovascular death and major cardiovascular events. Clinical Trial Registration— URL: http://www.clinicaltrials.gov . Unique identifier: NCT00345839.
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- 2015
6. IRON SUCROSE INJECTION IN PATIENTS WITH DIALYSIS ASSOCIATED ANEMIA AND PATIENTS SENSITIVE TO IRON DEXTRAN
- Author
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Arslanian, Joan, Spinowitz, B.S., and Charytan, C.
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Anemia -- Care and treatment -- Complications and side effects ,Dialysis ,Health - Abstract
An ideal intravenous iron product should include the ability to administer a therapeutic dose, without a test dose to all patients, including those with reactions to other iron products. Iron sucrose has been widely used outside the US for almost 50 years. As part of two multi-center studies we examined the safety and efficacy of iron sucrose [Venofer®] in iron deficient patients with and without prior sensitivity to iron dextran. Epoetin-dependent patients with Hb [is less than] 11 g/dl, Tsat [is less than] 20% and ferritin [is less than] 300 ng/ml were included. Iron sucrose [100 mg] was administered undiluted by IV push over 5 min on 10 consecutive dialysis sessions [total dose: 1000 mg]. No test dose was given. Of 100 patients enrolled [18 in our centers], 23 [4 in our centers] had a prior sensitivity to iron dextran. Overall, 98 patients completed treatment. No patients were withdrawn due to drug-related adverse events [AEs], regardless of prior sensitivity. No serious AEs occurred; only 4 patients experienced possibly drug-related AEs [2 mild metallic or minty taste, 1 mild pruritis and 1 mild cramping/constipation]. Intradialytic hypotension during treatment occurred at the same frequency as in the observation period. No patients with a prior sensitivity to iron dextran experienced a reaction to iron sucrose. Significant increases in Hb, serum ferritin and Tsat were observed during the studies. In conclusion, the administration of iron sucrose without a test dose was found to be safe and effective, regardless of prior sensitivity to iron products., Joan Arslanian, MSN, RN, CNN, B.S. Spinowitz, MD, and C. Charytan, MD, NY Hosp. Med. Ctr of Queens, New Flushing, [...]
- Published
- 2000
7. An assessment of cinacalcet HCl effects on bone histology in dialysis patients with secondary hyperparathyroidism
- Author
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Daniel W. Coyne, Monier-Faugere Mc, Stewart A. Turner, Frazã O Jm, William G. Goodman, Hartmut H. Malluche, G. Wang, Charytan C, J. W. Coburn, Baker N, Kaplan Mr, and Laura C. McCary
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Male ,medicine.medical_specialty ,Cinacalcet ,medicine.drug_class ,medicine.medical_treatment ,Biopsy ,Urology ,Parathyroid hormone ,Naphthalenes ,Bone remodeling ,Ilium ,Double-Blind Method ,Bone Density ,Renal Dialysis ,Internal medicine ,medicine ,Humans ,Renal osteodystrophy ,Prospective Studies ,Dialysis ,Chronic Kidney Disease-Mineral and Bone Disorder ,Hyperparathyroidism ,Bone Density Conservation Agents ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Fibrosis ,Phosphate binder ,Endocrinology ,Nephrology ,Kidney Failure, Chronic ,Secondary hyperparathyroidism ,Female ,Hyperparathyroidism, Secondary ,Bone Remodeling ,business ,Biomarkers ,medicine.drug - Abstract
AIMS Cinacalcet lowers plasma parathyroid hormone (PTH) levels in patients with secondary hyperparathyroidism (sHPT), but the bone histologic response has not been described. This prospective, double-blind, placebo-controlled trial assessed the effects of cinacalcet on bone histology and serum markers of bone metabolism in dialysis patients with sHPT. METHODS Patients with intact PTH (iPTH) > or = 300 pg/ml were randomly assigned 2:1 to receive cinacalcet or placebo with concurrent vitamin D and/or phosphate binder therapy. Cinacalcet (30 - 180 mg/day) was used to achieve iPTH levels < or = 200 pg/ml. Bone biopsies were performed before and after one year of treatment. RESULTS Baseline and end-of-study data were available from 32 patients (19 cinacalcet, 13 placebo). Baseline bone turnover was elevated in 27, reduced in 3 and normal in 2 patients. Serum bone-specific alkaline phosphatase (BSAP) and N-telopeptide (NTx) were elevated. Cinacalcet treatment decreased PTH and diminished activation frequency, bone formation rate/bone surface, and fibrosis surface/bone surface. Adynamic bone was observed in three patients receiving cinacalcet; in two of these, PTH levels were persistently low (< 100 pg/ml). The histomorphometric parameter changes in bone corresponded to PTH, BSAP and NTx reductions. Bone mineralization parameters remained normal. CONCLUSIONS Treatment with cinacalcet lowered PTH and reduced bone turnover and tissue fibrosis among most dialysis patients with biochemical evidence of sHPT.
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- 2008
8. Prognostic Indicators of Hernia Development in Patients Undergoing CAPD
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Spinowitz, B., primary, Leggio, A., additional, Galler, M., additional, Golden, R., additional, Rascoff, J., additional, and Charytan, C., additional
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- 1986
- Full Text
- View/download PDF
9. DIALYSIS EOSINOPHILIA
- Author
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Spinowitz, B. S., Simpson, M., Manu, P., and Charytan, C.
- Published
- 1981
10. REDUCTION IN PERITONITIS FREQUENCY BY THE DUPONT STERILE CONNECTION DEVICE
- Author
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Hamilton, R., Charytan, C., Kurtz, S., Ogden, D., Rakowski, T., Schrieber, M., Sorkin, M., Suki, W., Winchester, J., Adams, P., Caruana, R., Burkart, J., Vidt, D., Piraino, B., Silver, M., and Argy, W.
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- 1985
11. Efficacy of Treatments Targeting the Calcium- Sensing Receptor, Ca R, and Vitamin D Receptor, V D R, in Controlling Parathyroid Hormone, P T H, in Hemodialysis Patients
- Author
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Fishbane, S., primary, Wetmore, J., additional, Moustafa, M., additional, Martinez, C., additional, Stewart, T., additional, Ling, X., additional, Goodman, W.G., additional, and Charytan, C., additional
- Published
- 2008
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12. An assessment of cinacalcet HCl effects on bone histology in dialysis patients with secondary hyperparathyroidism
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Malluche, H.H., primary, Monier-Faugere, M.-C., additional, Wang, G., additional, Frazão, J.M., additional, Charytan, C., additional, Coburn, J.W., additional, Coyne, D.W., additional, Kaplan, M.R., additional, Baker, N., additional, McCary, L.C., additional, Turner, S.A., additional, and Goodman, W.G., additional
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- 2008
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13. 240: Treatment Patterns in Patients Progressing Through Later-Stage Chronic Kidney Disease (CKD): Baseline Data from a Prospective Observational Registry
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Shapiro, W., primary, Martinez, C., additional, Charytan, C., additional, Horowitz, J., additional, Tharpe, D., additional, Droge, J., additional, Ling, X., additional, Belozeroff, V., additional, Goodman, W., additional, Block, G., additional, and Sprague, S., additional
- Published
- 2008
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14. Cinacalcet is effective for secondary hyperparathyroidism in predialysis patients: cinacalcet hydrochloride is an effective treatment for secondary hyperparathyroidism in patients with CKD not receiving dialysis
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Charytan, C., Coburn, J.W., and Chonchol, M.
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Chronic kidney failure -- Drug therapy ,Health - Published
- 2006
15. Intravenous iron sucrose is more effective than oral iron for chronic kidney disease patients: comparison of intravenous iron sucrose to oral iron in the treatment of anemic patients with chronic kidney disease not on dialysis
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Charytan, C., Qunibi, W., and Bailie, G.R.
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Iron in the body -- Dosage and administration ,Anemia -- Care and treatment ,Health - Published
- 2006
16. 39
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Charytan, C., primary, Corry, D., additional, Roppolo, M., additional, Ling, X., additional, Droge, J., additional, and Fishbane, S., additional
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- 2007
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17. Acute interstitial nephritis secondary to infectious mononucleosis
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Verma, N., primary, Arunabh, S., additional, Brady, T.M., additional, and Charytan, C., additional
- Published
- 2002
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18. Treatment of malnutrition with 1.1% amino acid peritoneal dialysis solution: Results of a multicenter outpatient study
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Jones, M, primary, Hagen, T, additional, Boyle, CA, additional, Vonesh, E, additional, Hamburger, R, additional, Charytan, C, additional, Sandroni, S, additional, Bernard, D, additional, Piraino, B, additional, Schreiber, M, additional, Gehr, T, additional, Fein, P, additional, Friedlander, M, additional, Burkart, J, additional, Ross, D, additional, Zimmerman, S, additional, Swartz, R, additional, Knight, T, additional, Kraus, A, additional, McDonald, L, additional, Hartnett, M, additional, Weaver, M, additional, Martis, L, additional, and Moran, J, additional
- Published
- 1998
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- View/download PDF
19. Evaluation of enalapril (E)/ erythropoietin (EPO) interaction in chronic dialysis patients
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Schwenk, MH, primary, Charytan, C, additional, and Spinowitz, BS, additional
- Published
- 1997
- Full Text
- View/download PDF
20. A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of Cinacalcet HCl in Participants With CKD Not Receiving Dialysis.
- Author
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Chonchol M, Locatelli F, Abboud HE, Charytan C, de Francisco AL, Jolly S, Kaplan M, Roger SD, Sarkar S, Albizem MB, Mix TC, Kubo Y, and Block GA
- Abstract
BACKGROUND: Secondary hyperparathyroidism is observed in patients with early chronic kidney disease (CKD). This study investigated the safety and efficacy of cinacalcet for secondary hyperparathyroidism in participants with CKD not receiving dialysis. STUDY DESIGN: Double-blind, randomized, 32-week, phase 3 study. SETTING & PARTICIPANTS: 404 participants with stage 3 or 4 CKD from 73 centers in 9 countries. INTERVENTIONS: Cinacalcet:placebo (3:1 ratio). OUTCOMES & MEASUREMENTS: Proportion of participants with a mean decrease of 30% or greater in intact parathyroid hormone (iPTH) level, proportion with iPTH level of 70 or less or 110 or less pg/mL (stage 3 and 4 CKD, respectively), and mean percentage of iPTH change from baseline, all during the efficacy-assessment phase. RESULTS: A greater proportion of cinacalcet than placebo participants achieved a 30% or greater decrease in iPTH level (74% versus 28%; P < 0.001), corresponding to a 43.1% decrease in iPTH level from baseline (cinacalcet) compared with a 1.1% increase (placebo). At week 32, serum calcium levels were 8.9 +/- 0.8 mg/dL (-8.9%; cinacalcet) and 9.9 +/- 0.6 mg/dL (+0.8%; placebo), phosphorus levels were 4.5 +/- 1.0 mg/dL (+21.4%) and 4.0 +/- 0.7 mg/dL (+6.8%), and calcium-phosphorus product values were 40.1 +/- 8.3 mg(2)/dL(2) (+18.9%) and 38.9 +/- 6.9 mg(2)/dL(2) (+17.1%), respectively. During the study course, 62% (cinacalcet) and 1% (placebo) of participants experienced 2 consecutive serum calcium concentrations less than 8.4 mg/dL. They generally were asymptomatic and without significant clinical consequences. Treatment generally was well tolerated, and most adverse events were mild to moderate in severity. LIMITATIONS: The study was not designed to assess the effects of cinacalcet on vascular calcification, bone histomorphometric parameters, or other clinical outcomes. It is not known whether the observed differences in changes in iPTH levels are clinically more important than observed differences in changes in serum calcium or phosphorus levels or dosages of vitamin D sterols and phosphate binders. CONCLUSIONS: These data show that cinacalcet treatment in patients with CKD not receiving dialysis can decrease plasma iPTH levels, but with frequent (albeit generally asymptomatic) serum calcium levels less than 8.4 mg/dL and increases in serum phosphorus levels. Copyright © 2009 National Kidney Foundation, Inc. [ABSTRACT FROM AUTHOR]
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- 2009
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21. Effect of angiotensin-converting enzyme inhibitors on response to erythropoietin therapy in chronic dialysis patients.
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Charytan, Chaim, Goldfarb-Rumyantzev, Alexander, Wang, Y.F., Schwenk, Michael H., Spinowitz, Bruce S., Charytan, C, Goldfarb-Rumyantzev, A, Schwenk, M H, and Spinowitz, B S
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- 1998
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22. Comparison of Intravenous Iron Sucrose to Oral Iron in the Treatment of Anemic Patients with Chronic Kidney Disease Not on Dialysis
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Charytan, C., Qunibi, W., and Bailie, G.R.
- Abstract
Abstract Background: Few studies compare oral to intravenous (IV) iron for managing anemia in patients with chronic kidney disease (CKD) not on dialysis. Methods: We enrolled 96 CKD anemic patients on erythropoietin in a randomized, open-label, multicenter, controlled study. Patients received 29 days of oral FeSO4 (325 mg t.i.d.) or intravenous (IV) iron sucrose (5 doses of 200 mg weekly). Assessments were made up to 14 days after the last dose. Primary endpoints were changes in hemoglobin and ferritin, and clinical success was evaluated from the percent of patients with combined endpoints of rises in hemoglobin/ferritin, hemoglobin/ferritin/TSAT, and hemoglobin/TSAT. Results: There was no significant difference in hemoglobin values between IV and oral therapy. IV iron patients had greater increases in mean serum ferritin (288 ng/ml, p < 0.0001) compared to oral iron patients (5.1 ng/ml, p = NS). IV iron patients with baseline ferritin <100 ng/ml had a greater increase in hemoglobin (1.4 g/dl) compared to oral iron patients (0.9 g/dl) (p < 0.05). More IV iron patients (54.2%) attained hemoglobin values >11.0 g/dl compared to oral iron patients (31.3%, p = 0.028), and met hemoglobin/ferritin (62.5%), hemoglobin/TSAT (47.9%), hemoglobin/ferritin/TSAT (43.8%), and ferritin/TSAT criteria (54.2%) than oral iron patients (0, 22.9, 0, and 0%, respectively). There were no serious side effects. Conclusions: These CKD patients had increases in both hemoglobin and ferritin following IV iron therapy, whereas those treated with oral iron had increases in hemoglobin without increases in iron stores. Iron sucrose, given weekly as 200 mg IV push over 5 min is an effective and safe anemia treatment in this population.Copyright © 2005 S. Karger AG, Basel- Published
- 2005
23. Safety of Iron Sucrose in Hemodialysis Patients Intolerant to Other Parenteral Iron Products
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Charytan, C., Schwenk, M.H., Al-Saloum, M.M., and Spinowitz, B.S.
- Abstract
Abstract Background/Aims: This report summarizes the data gathered in four prospective studies of intravenous iron sucrose therapy administered to iron-deficient hemodialysis patients with a history of intolerance to other parenteral iron preparations. Methods: A total of 130 iron dextran- and/or sodium ferric gluconate-sensitive patients received intravenous iron sucrose therapy to correct iron deficiency, and/or maintain body iron stores. A history of intolerance to iron dextran alone was reported in 109 patients, to ferric sodium gluconate alone in 6 patients, and to both iron dextran and ferric sodium gluconate in 15 patients. Therapy with iron sucrose consisted of 100- or 200-mg doses administered undiluted intravenously over 25 min, or diluted in normal saline and infused over 1530 min. Test doses of iron sucrose were not administered. The median cumulative dose was 1,000 mg, with a range of 1005,000 mg. Results: There were no serious adverse events related to iron sucrose therapy in the 130 patients intolerant to other iron preparations. There were 14 nonserious drug-related adverse events in 8 patients attributed to iron sucrose, none of which resulted in discontinuation of therapy. These events were classified as either of severe (diarrhea), moderate (hypotension, nausea, vomiting), or mild severity (constipation, dry mouth, skin irritation). Conclusion: Iron sucrose therapy is safe and well tolerated in hemodialysis patients intolerant to iron dextran and/or sodium ferric gluconate.Copyright © 2004 S. Karger AG, Basel- Published
- 2004
24. External beam radiation therapy to prevent postangioplasty dialysis access restenosis - angiographic, morphometric and histopathologic analyses
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Parikh, S., Nori, D., Rogers, D., Charytan, C., Osian, A., Al-Saloum, M., and Cavallo, G.
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- 1999
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25. 39: Assessing the Use of the Calcimimetic Cinacalcet with Low Dose Vitamin D Versus Escalating Doses of Vitamin D Alone in the Treatment of Secondary Hyperparathyroidism (HPT)—The Achieve Study
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Charytan, C., Corry, D., Roppolo, M., Ling, X., Droge, J., and Fishbane, S.
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- 2007
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26. Technique for Implantation of the Toronto-Western Catheter at the Booth Memorial Medical Center.
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Fink, S., Spinowitz, Bruce S., and Charytan, C.
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- 1982
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27. Nondilated Obstructive Nephropathy
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Rascoff, J.H., primary, Golden, R.A., additional, Spinowitz, B.S., additional, and Charytan, C., additional
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- 1983
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28. A comparative study of continuous ambulatory peritoneal dialysis and center hemodialysis. Efficacy, complications, and outcome in the treatment of end-stage renal disease
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Charytan, C., primary
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- 1986
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29. Tetracycline nephropathy
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Charytan, C., primary
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- 1978
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30. External beam radiotherapy to prevent post-angioplasty restenosis of compromised arterio-venous dialysis accesses-A phase I study
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Nori, D., Parikh, S., Rogers, D., Charytan, C., Al-Saloum, M., and Cavallo, G.
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- 1998
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31. The effects of cinacalcet in older and younger patients on hemodialysis: The evaluation of cinacalcet HCL therapy to lower cardiovascular events (EVOLVE) trial
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P. Ryckelynck, Y. Woredekal, T. Gehr, Marian Klinger, J. Passauer, K. Liss, E. Del Valle, B. Linares, Ferdinando Avella, Stolear Jc, S. Tolkan, O. Hermida, V. Wizemann, Ricardo Correa-Rotter, J. Santos, Gert Mayer, Michael Anger, B. Pellegrino, B. Wikström, A. Ståhl, H. Al-Bander, Pedro Alejandro Gordan, Philip A. Kalra, E. Galindo-Ramos, Carmine Zoccali, G. Dolson, M. Eigner, Sanjay Dalal, G. Touchard, J Peeters, G. Da Roza, Shannon Murphy, R. Errico, M. Lonergan, A. Andrusev, H. Boulechfar, P. Zaoui, Michael Suranyi, de Francisco Martín de Francisco, S. Jacobson, B. Gupta, C. Stafford, J. Picollo de Oliveira, Ilka Regina Souza de Oliveira, F. Dumler, J. Martinez Saye, E. de Almeida Romão, Emmanuel A. Burdmann, C. Vermeij, N. Kumar, E. Shahmir, J. Stratton, R. Schmidt, Mario Cozzolino, Lars Christian Rump, Rainer Oberbauer, J. Kumar, M. Saklayen, Brian Hutchison, C. Denu-Ciocca, L. Weiss, E. Friedman, L. Renders, K. Gurevich, L. Brandi, W. Shapiro, Kym M. Bannister, K. Berta, Muhammad M. Yaqoob, C. Lok, A. Pedrosa, Rosa M.A. Moysés, K. Bhandari, J. Arrieta, T. Crouch, Brigitte Maes, G. Wong, Myriam González, Matthew R. P. Davies, R. Gonzalez, Geoffrey A. Block, T. Nammour, T. Youell, J. Ramirez, S. Tobe, N. Ramirez, T. Bochicchio-Ricardelli, J. Cangiano-Rivera, D. Streja, J. Endsley, K. Ang, R. Patak, J. Cheng, T. Rogers, Alberto Albertazzi, H. Holzer, G. Choukroun, Jose A.L. Arruda, Philippe Rieu, P. Simon, Stephen Z. Fadem, Jared G. Sugihara, H. Alfred, Bruce F. Culleton, G. Frascà, Giovanni Pertosa, W. Van Kuijk, H. Beresan, Samuel S. Blumenthal, Piergiorgio Messa, H. Baer, Michael C. Braun, B. Rutkowski, W. Riegel, M. Komandenko, V. Ermolenko, Martin Wilkie, N. Muirhead, Peter G. Kerr, D. Rattensberger, J. Sabto, Anjay Rastogi, L. Lef, M. El Shahawy, D. Tharpe, A. Smirnov, J. Pons, F. García, F. Zantvoort, A. Lionet, J. Topf, Marcia R. Silver, Reinhard Kramar, E. Moriero, A. Rekhi, S. Roe, P. Batista, E. Kolmakova, F. Rahim, M. Ostrowski, Janice P. Lea, Patrizia Ondei, C. Martinez, J. Donck, Nicole Lopez, F. Schena, Allen R. Nissenson, Alex P.S. Disney, R. Valtuille, C. Najun Zarazaga, M. Fraenkel, Pieter Evenepoel, R. Cottiero, S. Di Giulio, V. Gura, S. Karunakaran, P. Nader, F. Saldanha Thome, Walter Douthat, A. Fekete, L. Arbeit, W. Sulowicz, I. Marin, Charles R.V. Tomson, Andrzej Wiecek, Luis A. Juncos, G. Mingardi, P. Light, Max Dratwa, H. Reichel, R. Raja, U. Ranjit, G. Sterner, E. Coll Piera, P. Pai, Robert J. Walker, R. Bregman, E. Hübel, M. Timofeev, T. Szabo, A. Elli, N. Padmanabhan, N. Garrote, M. Mysliwiec, David C. Wheeler, J. Cruz-Valdez, R. Klauser, Maree-Ross Smith, Antonio Carlos Carvalho, A. Losito, M. Durlik, G. Petraglia, Gianni Cappelli, Y. Lien, M. Chaffin, N. García, R. Halligan, Glenn M. Chertow, M. Bastos, P. Smak Gregoor, S. Ong, M. Belledonne, Fredric O. Finkelstein, J. Martínez García, R. Pecoits Filho, M. Klingberg, B. Carvalho, S. Noble, T. Plumb, A. Chew Wong, Michael Roppolo, U. Neyer, S. Ahmad, J. Mackie, R. Minasian, M. Verrelli, A. Abukurah, M. Laski, P. Brunet, Madeleine V. Pahl, Daniel Zehnder, E. Alas, Muralidhar Acharya, G. Rudolf, G. Zakar, M. Reddy, R. Specter, G. Grandaliano, I. Kulcsar, A. Amatya, Eugenie Pedagogos, O. Ayodeji, G. Jensen, S. Diamond, Xavier Warling, P. Teredesai, M. Mathew, M. Haque, M. Solis, E. Andrés Ribes, M.A. van den Dorpel, Akhtar Ashfaq, Christian Rabbat, David G. Warnock, M. Sebastian Diaz, C. Mousson, R. Darwish, M. Sperto Baptista, N. Salgado, E. Alvarez Sandoval, M. Vasilevsky, P. Chidester, D. Polack, Simon J. Davies, G. Brosnahan, A. Agarwal, Chaim Charytan, T. Hannedouche, M. Gross, I. Arias, G. James, Jürgen Floege, Tom Dejagere, Patrick S. Parfrey, S. Cournoyer, T. Cavalieri, Gérard M. London, K. Gandhi, A. Kshirsagar, O. Khrustalev, J. Zacharias, Michel Dhaene, Jennifer Tuazon, W. Weise, J. Guzman-Rivera, HS Brink, Alastair J. Hutchison, P. D. Cunha, Robyn G Langham, S. Soman, J. Goldman, S. Kazup Erdelyine, A. Widerhorn, M. Henriquez, N. Hunt, W. Hoerl, O. Arkossy, J. Szegedi, R. Dhingra, M. Fernandez Lucas, Jesus Navarro, A. Kark, Andrey Gurevich, Cynthia J. Brown, Rajnish Mehrotra, L. Kleinman, S. Ferenczi, Loreto Gesualdo, V. Schwenger, M. Ramirez, N. Mittman, Ana María Cusumano, K. Marczewski, Moustafa Moustafa, Sônia M. H. A. Araújo, E. Ladanyi, M. Auricchio, Maurice Laville, P. Urena Torres, C. Gallart, A. Israelit, V. Altobelli, E. Hagen, S. Nosrati, John P. Middleton, Kant Ks, F. Al-Saghir, S. Steinberg, S. Neiva Coelho, Botond Csiky, Philip G Zager, M. Sekkarie, Vanda Jorgetti, Domingos O. d'Avila, Carol A. Pollock, L. Lai, B. von Albertini, Beckie Michael, U. Kunzendorf, N. Frischmuth, A. Durrbach, L. Vasconcellos, Raymond Vanholder, M. Dickenmann, B. Schiller-Moran, Steven D. Soroka, J. Rubin, O. Balkarova, S. Morse, M. Teixeira Araújo, D. Perlin, M. Khan, C. Hura, Dagmar-C. Fischer, D. Machado, Seamas C. Donnelly, D. Sapir, V. Lorica, L. Deboni, M. Jose, M. Galicia, K. Bidas, David Spiegel, David Goldsmith, Peter F Mount, A. Strokov, L. Yu, J. Pitone, Biagio Ricciardi, Alastair Gillies, M. Moyses Neto, Piergiorgio Bolasco, V. Anashkin, John R. Sedor, M. Lee, E.M. Jones, M. Culpepper, G. London, D. Joly, N. Khadikova, Charles A. Herzog, P. Meier, M. Farina, Dana V. Rizk, William M. McClellan, M. Cook, Bastian Dehmel, Patrizia Ferrari, F. Almeida, V. Pogue, R. McCrary, F. Macario, J. Golden, E. Wijeyesinghe, Tilman B. Drüeke, E. Osanloo, M. Muszytowski, F. Arif, Giuseppe Villa, M. Torres Zamora, Steven Zeig, N. Thompson, A. Jamal, C. Sholer, P. Stroumza, D. Reddan, Arun Gupta, J. Montenegro, T. DelGiorno, D. Eadington, G. Shostka, Michel Jadoul, A. Weigert, Sergio Stefoni, P. Dreyer, Carmel M. Hawley, J. Cardeal da Costa, M. Switalski, G. Talaulikar, A. Felsenfeld, J. MacLaurin, T. Herman, N. Pritchard, M. Michaud, K.-U. Eckardt, R. Romero, G. Volgina, Fred E. Husserl, J. Soler Amigó, David S. Goldfarb, A. Matalon, M. D. Torres, P. Sampaio Lacativa, L. Major, U. Lund, A. Lafalla, S. Sarkar, Jennifer M. MacRae, J. Lobo, Liudmila Rozhinskaya, Johann Braun, H. Daugaard, S. Khokhar, S. Rubinstein, D. Bhatia, G. Timokhovskaya, T. Wooldridge, A. Voßkühler, Nelson Kopyt, Pablo E. Pergola, Michel Burnier, L. Samuels, J. Alcázar de La Ossa, J. Billiouw, R. Liebl, P. Sidhu, S. Menahem, P. Montambault, E. Schwertfeger, K. Staroselsky, J. Kovarik, S. Horn, N. Tareen, Simon D. Roger, Francesco Locatelli, Kenneth W. Mahaffey, J Vanwalleghem, Robert I. Lynn, M. Prados, K. Kapatkin, N. Peñalba, Kailash Jindal, M. Stegman, R. Stahl, Joseph A. Eustace, S. Desmeules, A. Hazzan, D. Scott, B. Taparia, G. Keightley, P. Jensen, V. Ortalda, K. McConnell, Alejandro Martin-Malo, Margaret M. Williams, Stuart M. Sprague, S. Chow, Diego Brancaccio, Yumi Kubo, P. Dykes, E. de Francesco Daher, C. Erley, Joanna Matuszkiewicz-Rowińska, T. Minga, I. Dasgupta, Galen S. Wagner, N. Marchetta, R. Rigolosi, P. Raguram, P. Lang, P. Cambier-Dwelschauwers, A. Tsang, M. Schonefeld, W. Bentkowski, Z. Sharon, Daniel Batlle, James T. McCarthy, M. Vital Flores, M. Rambausek, A. Zemtchenkov, Fabio Malberti, V. Thakur, O. Domashenko, D. Wheeler, J. Capelli, Bernard Jones, D. Uehlinger, K. Olgaard, K. Lhotta, M. Bernardo, S. Goldberger, Alison Thomas, E. Dunnigan, A. Ksiazek, A. Assefi, C. Poole, G. Rosa Diez, G. Newman, J. Cotton, C. Combe, B. Murthyr, Sharon M. Moe, H. Neumayer, J. Mittleman, Robert G. Fassett, W. Cleveland, F. van der Sande, C. Vela, H. Fessi, J. Robertson, Giuseppe Cannella, Bryan N. Becker, João M. Frazão, V. Shilo, M. Rano, J. De Meester, R. Fiedler, J. Floege, B. Murray, Giovambattista Capasso, F. Dellanna, J. Luiz Gross, K. Tucker, C. Santiago, Paul J. Martin, M. Nowicki, L. Friedman, William G. Goodman, G. Diez, Markus Ketteler, S. Arfeen, I. Mezei, J. Ortiz, Elizabeth E. Brown, Deborah Zimmerman, Aleix Cases, M. El Khatib, Martine Leblanc, R. Daelemans, K. Malireddi, C. Rikker, R. Gladish, F. Aranda Verástegui, R. Kopelman, B. Borbas, J. Buerkert, K. Ntoso, J. Peña, V. Garcia, C. West, M. Azer, J. Kwan, J. Sterrett, P. Swift, A. Raff, R. Kohli, S. Lew, Steven J. Rosansky, H. Graf, K. Bouman, F. Skinner, C. Tielemans, S. Ferreira Filho, Jocemir Ronaldo Lugon, M. Weinberg, Parfrey, P. S., Drueke, T. B., Block, G. A., Correa-Rotter, R., Floege, J., Herzog, C. A., London, G. M., Mahaffey, K. W., Moe, S. M., Wheeler, D. C., Kubo, Y., Dehmel, B., Goodman, W. G., Chertow, G. M., Santos, J., Najun Zarazaga, C., Marin, I., Garrote, N., Cusumano, A., Penalba, N., Del Valle, E., Juncos, L., Martinez Saye, J., Lef, L., Altobelli, V., Petraglia, G., Rosa Diez, G., Douthat, W., Lobo, J., Gallart, C., Lafalla, A., Diez, G., Linares, B., Lopez, N., Ramirez, N., Gonzalez, R., Valtuille, R., Beresan, H., Hermida, O., Rudolf, G., Marchetta, N., Rano, M., Ramirez, M., Garcia, N., Gillies, A., Jones, B., Pedagogos, E., Walker, R., Talaulikar, G., Bannister, K., Suranyi, M., Kark, A., Roger, S., Kerr, P., Disney, A., Mount, P., Fraenkel, M., Mathew, M., Fassett, R., Jose, M., Hawley, C., Lonergan, M., Mackie, J., Ferrari, P., Menahem, S., Sabto, J., Hutchison, B., Langham, R., Pollock, C., Holzer, H., Oberbauer, R., Arias, I., Graf, H., Mayer, G., Lhotta, K., Neyer, U., Klauser, R., Hoerl, W., Horn, S., Kovarik, J., Kramar, R., Eigner, M., Dhaene, M., Billiouw, J., De Meester, J., Warling, X., Cambier-Dwelschauwers, P., Evenepoel, P., Daelemans, R., Dratwa, M., Maes, B., Stolear, J., Dejagere, T., Vanwalleghem, J., Bouman, K., Jadoul, M., Peeters, J., Vanholder, R., Tielemans, C., Donck, J., Almeida, F., Picollo de Oliveira, J., Burdmann, E., Garcia, V., Saldanha Thome, F., Deboni, L., Bregman, R., Lugon, J., Araujo, S., Ferreira Filho, S., de Francesco Daher, E., Sperto Baptista, M., Carvalho, A., D'Avila, D., Moyses Neto, M., Yu, L., Bastos, M., Sampaio Lacativa, P., Jorgetti, V., de Almeida Romao, E., Cardeal da Costa, J., Pecoits Filho, R., Gordan, P., Salgado, N., Teixeira Araujo, M., Neiva Coelho, S., Oliveira, I., Moyses, R., Vasconcellos, L., Batista, P., Luiz Gross, J., Pedrosa, A., Cournoyer, S., Leblanc, M., Chow, S., Karunakaran, S., Wong, G., Tobe, S., Desmeules, S., Zimmerman, D., Murphy, S., Montambault, P., Donnelly, S., Macrae, J., Culleton, B., Soroka, S., Rabbat, C., Jindal, K., Vasilevsky, M., Michaud, M., Wijeyesinghe, E., Zacharias, J., Lok, C., Muirhead, N., Verrelli, M., Da Roza, G., Sapir, D., Olgaard, K., Daugaard, H., Brandi, L., Jensen, P., Boulechfar, H., Ang, K., Simon, P., Rieu, P., Brunet, P., Touchard, G., London, G., Urena Torres, P., Combe, C., Durrbach, A., Ortiz, J., Hannedouche, T., Vela, C., Lionet, A., Ryckelynck, P., Zaoui, P., Choukroun, G., Fessi, H., Lang, P., Stroumza, P., Joly, D., Mousson, C., Laville, M., Dellanna, F., Erley, C., Braun, J., Rambausek, M., Riegel, W., Klingberg, M., Schwertfeger, E., Wizemann, V., Eckardt, K., Reichel, H., Passauer, J., Hubel, E., Frischmuth, N., Liebl, R., Fiedler, R., Schwenger, V., Vosskuhler, A., Kunzendorf, U., Renders, L., Rattensberger, D., Rump, L., Ketteler, M., Neumayer, H., Zantvoort, F., Stahl, R., Ladanyi, E., Kulcsar, I., Mezei, I., Csiky, B., Rikker, C., Arkossy, O., Berta, K., Szegedi, J., Major, L., Ferenczi, S., Fekete, A., Szabo, T., Zakar, G., Wagner, G., Kazup Erdelyine, S., Borbas, B., Eustace, J., Reddan, D., Capasso, G., Locatelli, F., Villa, G., Cozzolino, M., Brancaccio, D., Messa, P., Bolasco, P., Ricciardi, B., Malberti, F., Moriero, E., Cannella, G., Ortalda, V., Stefoni, S., Frasca, G., Cappelli, G., Albertazzi, A., Zoccali, C., Farina, M., Elli, A., Avella, F., Ondei, P., Mingardi, G., Errico, R., Losito, A., Di Giulio, S., Pertosa, G., Schena, F., Grandaliano, G., Gesualdo, L., Auricchio, M., Bochicchio-Ricardelli, T., Aranda Verastegui, F., Pena, J., Chew Wong, A., Cruz-Valdez, J., Torres Zamora, M., Solis, M., Sebastian Diaz, M., Vital Flores, M., Alvarez Sandoval, E., van den Dorpel, M., Brink, H., Van Kuijk, W., Vermeij, C., Smak Gregoor, P., Hagen, E., van der Sande, F., Klinger, M., Nowicki, M., Muszytowski, M., Bidas, K., Bentkowski, W., Wiecek, A., Ksiazek, A., Marczewski, K., Ostrowski, M., Switalski, M., Sulowicz, W., Matuszkiewicz-Rowinska, J., Mysliwiec, M., Durlik, M., Rutkowski, B., Macario, F., Carvalho, B., Frazao, J., Machado, D., Weigert, A., Andrusev, A., Khrustalev, O., Zemtchenkov, A., Gurevich, K., Staroselsky, K., Khadikova, N., Rozhinskaya, L., Timokhovskaya, G., Strokov, A., Balkarova, O., Ermolenko, V., Kolmakova, E., Komandenko, M., Timofeev, M., Shilo, V., Shostka, G., Smirnov, A., Anashkin, V., Volgina, G., Domashenko, O., Gurevich, A., Perlin, D., Martinez Garcia, J., Andres Ribes, E., Coll Piera, E., Fernandez Lucas, M., Galicia, M., Prados, M., Gonzalez, M., Romero, R., Martin de Francisco, A., Montenegro, J., Santiago, C., Garcia, F., Alcazar de La Ossa, J., Arrieta, J., Pons, J., Martin-Malo, A., Soler Amigo, J., Cases, A., Sterner, G., Jensen, G., Wikstrom, B., Jacobson, S., Lund, U., Weiss, L., Stahl, A., von Albertini, B., Burnier, M., Meier, P., Martin, P., Uehlinger, D., Dickenmann, M., Yaqoob, M., Zehnder, D., Kalra, P., Padmanabhan, N., Roe, S., Eadington, D., Pritchard, N., Hutchison, A., Davies, S., Wilkie, M., Davies, M., Pai, P., Swift, P., Kwan, J., Goldsmith, D., Tomson, C., Stratton, J., Dasgupta, I., Sarkar, S., Moustafa, M., Gandhi, K., Jamal, A., Galindo-Ramos, E., Tuazon, J., Batlle, D., Tucker, K., Schiller-Moran, B., Assefi, A., Martinez, C., Samuels, L., Goldman, J., Cangiano-Rivera, J., Darwish, R., Lee, M., Topf, J., Kapatkin, K., Baer, H., Kopelman, R., Acharya, M., Tharpe, D., Bernardo, M., Nader, P., Guzman-Rivera, J., Pergola, P., Sekkarie, M., Alas, E., Zager, P., Liss, K., Navarro, J., Roppolo, M., Denu-Ciocca, C., Kshirsagar, A., El Khatib, M., Kant, K., Scott, D., Murthyr, B., Finkelstein, F., Keightley, G., Mccrary, R., Pitone, J., Cavalieri, T., Tsang, A., Pellegrino, B., Schmidt, R., Ahmad, S., Brown, C., Friedman, E., Mittman, N., Fadem, S., Shapiro, W., Reddy, M., Goldberger, S., Woredekal, Y., Agarwal, A., Anger, M., Haque, M., Chidester, P., Kohli, R., Rubinstein, S., Newman, G., Gladish, R., Ayodeji, O., Soman, S., Sprague, S., Hunt, N., Gehr, T., Rizk, D., Warnock, D., Polack, D., Pahl, M., Fischer, D., Dreyer, P., James, G., Husserl, F., Rogers, T., Raff, A., Sedor, J., Silver, M., Smith, M., Steinberg, S., Delgiorno, T., Jones, E., Cunha, P. D., Cheng, J., Pogue, V., Blumenthal, S., Brown, E., Charytan, C., Buerkert, J., Cook, M., Felsenfeld, A., Tareen, N., Gupta, A., Herman, T., Diamond, S., Hura, C., Laski, M., Maclaurin, J., Plumb, T., Brosnahan, G., Kumar, J., Henriquez, M., Poole, C., Osanloo, E., Matalon, A., Sholer, C., Arfeen, S., Azer, M., Belledonne, M., Gross, M., Dunnigan, E., Mcconnell, K., Becker, B., Skinner, F., Rigolosi, R., Spiegel, D., Stegman, M., Patak, R., Streja, D., Ranjit, U., Youell, T., Wooldridge, T., Stafford, C., Cottiero, R., Weinberg, M., Schonefeld, M., Shahmir, E., Hazzan, A., Ashfaq, A., Bhandari, K., Cleveland, W., Culpepper, M., Golden, J., Lai, L., Lien, Y., Lorica, V., Robertson, J., Malireddi, K., Morse, S., Thakur, V., Israelit, A., Raguram, P., Alfred, H., Weise, W., Al-Saghir, F., El Shahawy, M., Rastogi, A., Nissenson, A., Kopyt, N., Lynn, R., Lea, J., Mcclellan, W., Teredesai, P., Ong, S., Tolkan, S., Sugihara, J., Minga, T., Mehrotra, R., Minasian, R., Bhatia, D., Specter, R., Capelli, J., Sidhu, P., Dalal, S., Dykes, P., Khan, M., Rahim, F., Saklayen, M., Thomas, A., Michael, B., Torres, M., Al-Bander, H., Murray, B., Abukurah, A., Gupta, B., Nosrati, S., Raja, R., Zeig, S., Braun, M., Amatya, A., Endsley, J., Sharon, Z., Dolson, G., Dumler, F., Ntoso, K., Rosansky, S., Kumar, N., Gura, V., Thompson, N., Goldfarb, D., Halligan, R., Middleton, J., Widerhorn, A., Arbeit, L., Arruda, J., Crouch, T., Friedman, L., Khokhar, S., Mittleman, J., Light, P., Taparia, B., West, C., Cotton, J., Dhingra, R., Kleinman, L., Arif, F., Lew, S., Nammour, T., Sterrett, J., Williams, M., Ramirez, J., Rubin, J., Mccarthy, J., Noble, S., Chaffin, M., and Rekhi, A.
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Parathyroidectomy ,Adult ,Male ,medicine.medical_specialty ,Cinacalcet ,Epidemiology ,medicine.medical_treatment ,Calcimimetic Agents ,Critical Care and Intensive Care Medicine ,Lower risk ,Severity of Illness Index ,CKD ,cardiovascular disease ,hemodialysis ,hyperparathyroidism ,mineral metabolism ,Age Factors ,Aged ,Aged, 80 and over ,Cardiovascular Diseases ,Cinacalcet Hydrochloride ,Female ,Humans ,Hyperparathyroidism, Secondary ,Kidney Failure, Chronic ,Kidney Transplantation ,Middle Aged ,Renal Dialysis ,Nephrology ,Transplantation ,Internal medicine ,medicine ,Intensive care medicine ,Hyperparathyroidism ,business.industry ,Original Articles ,medicine.disease ,Secondary hyperparathyroidism ,Hemodialysis ,business ,medicine.drug - Abstract
Background andobjectivesThecalcimimeticcinacalcet reduced therisk of death or cardiovascular (CV) events in older, but not younger, patients with moderate to severe secondary hyperparathyroidism (HPT) who were receiving hemodialysis. To determine whether the lower risk in younger patients might be due to lower baseline CV risk and more frequent use of cointerventions that reduce parathyroid hormone (kidney transplantation, parathyroidectomy, and commercial cinacalcet use), this study examined the effects of cinacalcet in older ($65 years, n=1005) and younger (,65 years, n=2878) patients. Design, setting, participants, & measurements Evaluation of Cinacalcet HCl Therapy to Lower Cardiovascular Events (EVOLVE) was a global, multicenter, randomized placebo-controlled trial in 3883 prevalent patients on hemodialysis, whose outcomes included death, major CV events, and development of severe unremitting HPT. The age subgroup analysis was prespecified. ResultsOlderpatients hadhigher baselineprevalenceof diabetesmellitusandCV comorbidity. Annualizedrates of kidney transplantation and parathyroidectomy were .3-fold higher in younger relative to older patients and were more frequent in patients randomized to placebo. In older patients, the adjusted relative hazard (95% confidence interval) for the primary composite (CV) end point (cinacalcet versus placebo) was 0.70 (0.60 to 0.81); in younger patients, the relative hazard was 0.97 (0.86 to 1.09). Corresponding adjusted relative hazards for mortality were 0.68 (0.51 to 0.81) and 0.99 (0.86 to 1.13). Reduction in the risk of severe unremitting HPT was similar in both groups. Conclusions In the EVOLVE trial, cinacalcet decreased the risk of death and of major CV events in older, but not younger, patients with moderate to severe HPT who were receiving hemodialysis. Effect modification by age may be partly explained by differences in underlying CV risk and differential application of cointerventions that reduce parathyroid hormone. Clin J Am Soc Nephrol 10: ccc–ccc, 2015. doi: 10.2215/CJN.07730814
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- 2015
32. Long-term immunogenicity and safety of the hepatitis B vaccine HepB-CpG (HEPLISAV-B) compared with HepB-Eng (Engerix-B) in adults with chronic kidney disease.
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Girndt M, Houser P, Manllo-Karim R, Ervin JE, Charytan C, Chow S, Symonian-Silver M, Lehrner L, Linfert D, Shemin D, Michelsen A, Xie F, and Janssen RS
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- Male, Humans, Adult, Aged, Female, Hepatitis B Vaccines, Hepatitis B Surface Antigens, Hepatitis B virus, Hepatitis B Antibodies, Endoglin, Hepatitis B prevention & control, Renal Insufficiency, Chronic complications, Renal Insufficiency, Chronic therapy
- Abstract
Background: Hepatitis B virus (HBV) infection remains a significant global burden, especially for patients with chronic kidney disease (CKD) receiving hemodialysis. Three doses of HepB-CpG (HEPLISAV-B® vaccine) induced a superior immune response compared with 4 double doses of HepB-Eng (Engerix-B®) in a phase 3 trial (HBV-17) in adults with CKD. Here we report the long-term immunogenicity and safety of HepB-CpG and HepB-Eng in eligible participants of HBV-17 who enrolled in this optional 34-month follow-up trial (HBV-19)., Methods: HBV-19 is a multicenter, open-label, phase 3b trial of adults with CKD who previously received a complete series of HepB-CpG or HepB-Eng in the HBV-17 trial. Participants were assigned to seroprotection categories at enrollment on the basis of their antibody response to hepatitis B surface antigen (anti-HBs) in HBV-17. The objective was to evaluate the durability of seroprotection (defined as an anti-HBs concentration ≥ 10mIU/mL) induced by HepB-CpG and HepB-Eng. Participants whose anti-HBs concentration was below 10mIU/mL received additional HepB-CpG or HepB-Eng doses., Results: 147 participants were enrolled; 66.7 % were men, median age was 65.0 years, and 83.7 % were white. The durability of seroprotection in participants with CKD was similar in those who received HepB-CpG and those who received HepB-Eng. Antibody concentrations ≥ 100mIU/mL persisted for longer in HepB-CpG than HepB-Eng recipients, among those with anti-HBs ≥ 100mIU/mL post vaccination. The geometric mean anti-HBs concentration in the HepB-CpG group was significantly higher than in the HepB-Eng group over time (P ≤ 0.0001). The safety profiles were similar between the vaccine groups., Conclusions: Due to the higher antibody levels induced by HepB-CpG in participants with CKD, seroprotection against HBV may be expected to persist longer than that induced by HepB-Eng., Clinicaltrials: gov: NCT01282762., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: M.G. received speaker's honoraria from Astellas, Daiichi Sankyo, Novartis, Sanofi, Vifor, and GlaxoSmithKline unrelated to the topic of this work. F.X. is a consultant for and R.S.J. is an employee of Dynavax Technologies Corporation. No other conflicts were reported., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2023
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33. Changes in Iron Availability with Roxadustat in Nondialysis- and Dialysis-Dependent Patients with Anemia of CKD.
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Pergola PE, Charytan C, Little DJ, Tham S, Szczech L, Leong R, and Fishbane S
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- Humans, Epoetin Alfa metabolism, Ferritins therapeutic use, Glycine analogs & derivatives, Hemoglobins analysis, Hepcidins, Iron therapeutic use, Isoquinolines, Renal Dialysis, Randomized Controlled Trials as Topic, Clinical Trials, Phase III as Topic, Anemia drug therapy, Erythropoietin metabolism, Prolyl-Hydroxylase Inhibitors therapeutic use, Renal Insufficiency, Chronic complications
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Background: Roxadustat, a hypoxia-inducible factor prolyl hydroxylase inhibitor, increases hemoglobin by stimulating erythropoietin synthesis and improving iron availability through facilitation of iron uptake and/or release from stores. In this exploratory analysis, we assessed the effect of roxadustat treatment on laboratory parameters related to iron metabolism in patients with anemia of chronic kidney disease (CKD)., Methods: Data were pooled from pivotal, randomized, phase 3 roxadustat trials: three placebo-controlled, double-blind trials in nondialysis-dependent (NDD) CKD and three open-label, active-comparator (epoetin alfa) trials in dialysis-dependent (DD) CKD. In this exploratory analysis, mean changes from baseline in hemoglobin, iron parameters, and hepcidin, and intravenous (iv) iron use were evaluated. Pooled results in NDD CKD and DD CKD patients are reported., Results: Overall, 4277 patients with NDD CKD and 3890 patients with DD CKD were evaluated. Hemoglobin increases with roxadustat treatment were accompanied by increases in serum iron and total iron-binding capacity (TIBC) and decreases in serum ferritin and hepcidin from baseline through week 52. With epoetin alfa, the hemoglobin increase was accompanied by decreases in serum ferritin and hepcidin, but serum iron decreased, and there was no change in TIBC. With placebo, there were no changes in hemoglobin, iron parameters, or hepcidin. During treatment, iv iron use was reduced with roxadustat versus placebo and epoetin alfa., Conclusions: In patients with NDD CKD and DD CKD, roxadustat treatment is associated with increases in serum iron and TIBC, accompanied by reduced hepcidin and indicative of improved iron kinetics. Patients treated with roxadustat achieved target hemoglobin levels with less iv iron use versus comparators. Practitioners treating patients with anemia of CKD with roxadustat should consider its unique effects when interpreting iron parameters., Competing Interests: S. Fishbane and P.E. Pergola have received research support and consulting fees from AstraZeneca. D.J. Little and S. Tham are employees of AstraZeneca. R. Leong and L. Szczech are former employees of FibroGen, Inc. C. Charytan has received research support from AstraZeneca and FibroGen, Inc., (Copyright © 2022 by the American Society of Nephrology.)
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- 2022
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34. A Randomized Trial of Roxadustat in Anemia of Kidney Failure: SIERRAS Study.
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Charytan C, Manllo-Karim R, Martin ER, Steer D, Bernardo M, Dua SL, Moustafa MA, Saha G, Bradley C, Eyassu M, Leong R, Saikali KG, Liu C, Szczech L, and Yu KP
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Introduction: Erythropoiesis-stimulating agents, standard of care for anemia of end-stage kidney disease, are associated with cardiovascular events. We evaluated the efficacy and safety of roxadustat, an oral hypoxia-inducible factor prolyl hydroxylase inhibitor that stimulates erythropoiesis., Methods: SIERRAS was a phase 3, randomized, open-label, active-controlled study enrolled adults on dialysis for end-stage kidney disease receiving erythropoiesis-stimulating agents for anemia. Patients were randomized (1:1) to thrice-weekly roxadustat or epoetin alfa. Doses were based on previous epoetin alfa dose and adjusted in the roxadustat arm to maintain hemoglobin at ∼11 g/dl during treatment. Epoetin alfa dosing was adjusted per US package insert. Primary efficacy endpoint was mean hemoglobin (g/dl) change from baseline averaged over weeks 28 to 52. Treatment-emergent adverse events were monitored., Results: Enrolled patients (roxadustat, n = 370 and epoetin alfa, n = 371) had similar mean (SD) baseline hemoglobin levels (10.30 [0.66] g/dl). Mean (SD) hemoglobin changes for weeks 28 to 52 were 0.39 (0.93) and -0.09 (0.84) in roxadustat and epoetin alfa, respectively. Roxadustat was noninferior (least squares mean difference: 0.48 [95% confidence interval: 0.37, 0.59]; P < 0 . 001) to epoetin alfa. Tolerability was comparable between treatments., Conclusion: In end-stage kidney disease, roxadustat was noninferior to epoetin alfa in up to 52 weeks of treatment in this erythropoietin-stimulating agent conversion study. Roxadustat had an acceptable tolerability profile., (© 2021 International Society of Nephrology. Published by Elsevier Inc.)
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- 2021
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35. Optimizing Kidney Replacement Therapy During the COVID-19 Pandemic Across a Complex Healthcare System.
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Akomeah J, Apostol A, Barnes E, Charytan C, Enriquez U, Katikaneni M, Liu F, Messina A, Neelakantappa K, Radhakrishnan J, Raichoudhury R, Ramakrishnan R, Saboor S, Sapozhnikova A, Silberzweig J, Stevens JS, Tanzi-Pfeifer S, Tutone J, and Srivatana V
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The unprecedented surge of nephrology inpatients needing kidney replacement therapy placed hospital systems under extreme stress during the COVID-19 pandemic. In this article, we describe the formation of a cross campus "New-York Presbyterian COVID-19 Kidney Replacement Therapy Task Force" with intercampus physician, nursing, and supply chain representation. We describe several strategies including the development of novel dashboards to track supply/demand of resources, urgent start peritoneal dialysis, in-house preparation of kidney replacement fluid, the use of unconventional personnel resources to ensure the safe and continued provision of kidney replacement therapy in the face of the unanticipated surge. These approaches facilitated equitable sharing of resources across a complex healthcare-system and allowed for the rapid implementation of standardized protocols at each hospital., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2020 Akomeah, Apostol, Barnes, Charytan, Enriquez, Katikaneni, Liu, Messina, Neelakantappa, Radhakrishnan, Raichoudhury, Ramakrishnan, Saboor, Sapozhnikova, Silberzweig, Stevens, Tanzi-Pfeifer, Tutone and Srivatana.)
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- 2020
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36. Pernicious Anemia Associated Cobalamin Deficiency and Thrombotic Microangiopathy: Case Report and Review of the Literature.
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Yousaf F, Spinowitz B, Charytan C, and Galler M
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A 43-year-old Hispanic male without significant previous medical history was brought to emergency department for syncope following a blood draw to investigate a 40 lbs weight loss during the past 6 months associated with decreased appetite and progressive fatigue. The patient also reported a 1-month history of jaundice. On examination, he was hemodynamically stable and afebrile with pallor and diffuse jaundice but without skin rash or palpable purpura. Normal sensations and power in all extremities were evident on neurological exam. Presence of hemolytic anemia, schistocytosis, thrombocytopenia, and elevated lactate dehydrogenase (LDH) was suggestive of thrombotic thrombocytopenic purpura (TTP). However, presence of leukopenia, macrocytes, and an inadequate reticulocyte response to the degree of anemia served as initial clues to an alternative diagnosis. Two and one units of packed red blood cells were transfused on day 1 and day 3, respectively. In addition, one unit of platelets was transfused on day 2. Daily therapeutic plasma exchange (TPE) was initiated and continued until ADAMTS-13 result ruled out TTP. A low cobalamin (vitamin B12) level was evident at initial laboratory work-up and subsequent testing revealed positive intrinsic factor-blocking antibodies supporting a diagnosis of pernicious anemia with severe cobalamin deficiency. Hematological improvement was observed following vitamin B12 supplementation. The patient was discharged and markedly improved on day 9 with outpatient follow-up for cobalamin supplementation., Competing Interests: The authors declare that they have no competing interests and that the results presented have not been published previously in whole or part, except in abstract format.
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- 2017
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37. Introduction of Biosimilar Therapeutics Into Nephrology Practice in the United States: Report of a Scientific Workshop Sponsored by the National Kidney Foundation.
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Wish JB, Charytan C, Chertow GM, Kalantar-Zadeh K, Kliger AS, Rubin RJ, Yee J, and Fishbane S
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- Biomedical Research, Congresses as Topic, Drug Utilization, Humans, Kidney Diseases drug therapy, Practice Guidelines as Topic, United States, Biosimilar Pharmaceuticals therapeutic use, Nephrology
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Biosimilars are biologic medicines highly similar to the reference product with no meaningful clinical differences in terms of safety, purity, and potency. All biologic medicines are produced by living cells, resulting in an inherent heterogeneity in their higher order structures and post-translational modifications. In 2010, the US Congress enacted legislation to streamline the approval process for biosimilars of products losing patent protection, with the goal of decreasing costs and improving patient access to therapeutically important but expensive biologic agents. In 2015, the US Food and Drug Administration approved the first biosimilar agent through this pathway. Approval of additional biosimilar agents in the United States, including those used by nephrologists, is anticipated. Given the relative lack of knowledge regarding biosimilars and their approval process and a lack of trust by the nephrology community regarding their safety and efficacy, the National Kidney Foundation conducted a symposium, Introduction of Biosimilar Therapeutics Into Nephrology Practice in the U.S., September 17 to 18, 2015. Issues related to manufacturing, the regulatory approval process, interchangeability, substitution/switching, nomenclature, and clinician and patient awareness and acceptance were examined. This report summarizes the main discussions at the symposium, highlights several controversies, and makes recommendations related to public policy, professional and patient education, and research needs., (Copyright © 2016 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved.)
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- 2016
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38. Systematic review of the efficacy and safety of intradermal versus intramuscular hepatitis B vaccination in end-stage renal disease population unresponsive to primary vaccination series.
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Yousaf F, Gandham S, Galler M, Spinowitz B, and Charytan C
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- Humans, Injections, Intradermal, Injections, Intramuscular, Hepatitis B prevention & control, Hepatitis B Surface Antigens blood, Hepatitis B Vaccines administration & dosage, Kidney Failure, Chronic immunology, Vaccination methods
- Abstract
Introduction: The response to hepatitis B vaccine in the dialysis population is reduced compared to the general population. The intradermal (ID) hepatitis B vaccine has been studied as a potential alternative to intramuscular (IM) administration. This alternative route of administration may illicit a response via a distinct immunologic pathway that may help achieve higher seroconversion rates and thus, protection against hepatitis B infection in this vulnerable patient population., Methods: A literature search was performed in January 2015 using Embase, MEDLINE, and the Cochrane Central Register of Controlled Trials with keywords including, hepatitis B vaccines, intradermal, dermal, intracutaneous, dialysis, hemodialysis, continuous ambulatory peritoneal dialysis, CAPD, peritoneal dialysis, renal failure, chronic renal failure, chronic kidney disease, chronic renal insufficiency, End Stage Renal Disease, ESRD, and CKD. Our search strategy was restricted to human studies published in the English language, and additional literature was retrieved by hand-searching bibliographies of relevant articles. Two reviewers (F.Y. and S.G.) independently reviewed abstracts and/or full texts of articles retrieved from the electronic database using the above-mentioned search strategy. Inclusion criteria were as follows: (1) Published, English-language studies performed in the human population, (2) adult patient population (≥18 years of age), (3) randomized trials, (4) patient population must have been unresponsive to a primary IM hepatitis B vaccination protocol, (5) patients must be chronic dialysis patients, either on maintenance hemodialysis or continuous ambulatory peritoneal dialysis (CAPD), (6) studies that compare IM and ID hepatitis B vaccination-associated seroconversion rates, (7) results must be reported as seroconversion rates at 1-3, 6-9, 12, or 20 months post-vaccination, and (8) seroconversion (protective antibody levels) defined as >10 or ≥10 IU/L., Results: Our initial literature review yielded 113 results, of which four were included in our final review. These four prospective trials studied a combined total of 204 dialysis patients. Of these patients, 120 (59%) had received the hepatitis B vaccine intradermally, while 84 (41%) received it intramuscularly. Hepatitis B vaccination type, dose, route, and seroconversion rates were tabulated for each study. Each of the studies used different protocols for patient inclusion, schedule of vaccine administration, and time-points for measuring seroconversion. Seroconversion rates at either 1, 2, 3, 6-9, 12 and/or 20 months were reported. The combined seroconversion rates were 91%, 83%, 86%, 81%, 76%, and 32% at 1, 2, 3, 6-9, 12, and 20 months in the ID group, respectively, and 55%, 72%, 58%, 44%, 24%, and 0% in the IM group, respectively. Chi-square analysis revealed a significantly higher proportion of patients achieving seroconversion in the ID group versus the IM group (p < 0.05)., Conclusions: Our review demonstrates that ID hepatitis B vaccination in primary non-responders undergoing dialysis provides an effective alternative to IM vaccination as a means of protection against hepatitis B infection in this highly susceptible population. Additional well-designed, double-blinded, randomized trials are warranted to establish clear guidelines on ID Hepatitis B vaccine dose and duration of vaccination schedule.
- Published
- 2015
39. Review of cinacalcet hydrochloride in the management of secondary hyperparathyroidism.
- Author
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Yousaf F and Charytan C
- Subjects
- Bone Density drug effects, Cardiovascular Diseases drug therapy, Cinacalcet, Fibroblast Growth Factor-23, Fibroblast Growth Factors blood, Humans, Hyperphosphatemia drug therapy, Naphthalenes economics, Naphthalenes pharmacology, Practice Guidelines as Topic, Hyperparathyroidism, Secondary drug therapy, Naphthalenes therapeutic use
- Abstract
Cinacalcet is the first Food and Drug Administration-approved calcimimetic for the treatment of secondary hyperparathyroidism in dialysis patients. It is effective in improving control of parathyroid hormone, serum calcium, phosphorus, and calcium-phosphorus product. The calcium-lowering effect of cinacalcet overcomes the limitations of standard therapy associated hypercalcemia. There is evidence to suggest that cinacalcet has important clinical implications, which extend beyond its relevance in the treatment of secondary hyperparathyroidism. This review summarizes the evidence regarding the role of cinacalcet in the treatment of secondary hyperparathyroidism, disrupted bone mineral metabolism, cardiovascular disease, and mortality. In addition, the cost implications of cinacalcet are briefly explored.
- Published
- 2014
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- View/download PDF
40. Intravenous ferric carboxymaltose versus standard medical care in the treatment of iron deficiency anemia in patients with chronic kidney disease: a randomized, active-controlled, multi-center study.
- Author
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Charytan C, Bernardo MV, Koch TA, Butcher A, Morris D, and Bregman DB
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Anemia, Iron-Deficiency etiology, Female, Follow-Up Studies, Humans, Injections, Intravenous, Male, Maltose administration & dosage, Middle Aged, Prognosis, Young Adult, Anemia, Iron-Deficiency drug therapy, Ferric Compounds administration & dosage, Iron administration & dosage, Maltose analogs & derivatives, Renal Dialysis, Renal Insufficiency, Chronic complications
- Abstract
Background: Currently available intravenous (IV) iron agents vary in indication, dosing regimens and safety profiles. Ferric carboxymaltose (FCM) is a stable, non-dextran-containing iron formulation developed for rapid IV administration in high doses with controlled delivery of iron into target tissues. The objective of the present study was to evaluate the safety of FCM compared with standard medical care (SMC) in dialysis (HD) and non-dialysis-dependent (NDD) chronic kidney disease (CKD) patients., Methods: Adults 18-85 years of age with CKD were enrolled. NDD-CKD (n = 204) patients received an undiluted IV dose of FCM (15 mg/kg to a maximum of 1000 mg IV) and HD-CKD (n = 50) patients received an undiluted IV push of 200 mg ~30-60 min into the dialysis session. Subjects randomized to the SMC group (n = 259) received treatment determined by the investigator that could include oral iron, IV iron or no iron., Results: Single doses of FCM of 200 mg in HD-CKD patients and up to 1000 mg in NDD-CKD patients were well tolerated. Incidences of treatment-emergent adverse events were similar between the groups: 30.3% (77 of 254) in the FCM group and 32.8% (85 of 259) in the SMC group. Incidences of serious adverse events were higher in the SMC group overall and in patients receiving iron sucrose or sodium ferric gluconate. There were no clinically significant differences in laboratory or clinical chemistry values or vital signs between the groups. There were no statistically significant differences between the FCM and SMC groups in indices of hemoglobin (Hb) improvement, including proportions of patients achieving a ≥ 1 g/dL increase in Hb and proportions of patients achieving Hb level of >12 g/dL., Conclusion: FCM in doses of 200 mg for HD-CKD patients and up to 1000 mg in NDD-CKD patients were well tolerated and displayed comparable efficacy to other IV iron formulations.
- Published
- 2013
- Full Text
- View/download PDF
41. Bundled-rate legislation for Medicare reimbursement for dialysis services: implications for anemia management with ESAs.
- Author
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Charytan C
- Subjects
- Continuity of Patient Care, Cost Savings, Health Care Costs, Hematinics administration & dosage, Humans, Insurance, Health, Reimbursement legislation & jurisprudence, Iron therapeutic use, Kidney Failure, Chronic drug therapy, United States, Anemia drug therapy, Hematinics therapeutic use, Medicare legislation & jurisprudence, Renal Dialysis economics
- Abstract
With the incidence of ESRD on the rise, there is a continuing need to control anemia-related treatment costs in dialysis patients receiving reimbursement through Medicare. Currently, erythropoiesis-stimulating agents (ESAs) are billed separately from dialysis services, potentially creating little financial incentive for more efficient use. The Medicare Improvement for Patients and Providers Act, passed by the U.S. Congress in July 2008, includes provisions intended to address this concern. Under this act, dialysis services will be reimbursed using a fully bundled, comprehensive payment system that includes all services currently covered in the basic composite rate, as well as certain separately billable items, including ESAs. A base rate of $229.63 per treatment has been assigned, to be individualized using case-mix adjusters. The implications of this new system for anemia management with ESAs continue to be elucidated. With fixed compensation for ESAs, management strategies that maximize efficiencies and, thereby, optimize cost savings will be favored. Select strategies may include switching from intravenous (IV) to subcutaneous routes, lowering Hb targets and ESA doses in hyporesponsive patients, increasing administration of IV iron, increasing use of home dialysis, and optimizing ESA dosing intervals. Once-monthly ESA therapy has potential advantages under this new system as an alternative to more frequently administered ESAs and may help achieve quality metrics in a cost-efficient manner.
- Published
- 2010
- Full Text
- View/download PDF
42. Cinacalcet HCl and concurrent low-dose vitamin D improves treatment of secondary hyperparathyroidism in dialysis patients compared with vitamin D alone: the ACHIEVE study results.
- Author
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Fishbane S, Shapiro WB, Corry DB, Vicks SL, Roppolo M, Rappaport K, Ling X, Goodman WG, Turner S, and Charytan C
- Subjects
- Adult, Aged, Calcium metabolism, Chronic Disease, Cinacalcet, Drug Therapy, Combination, Female, Humans, Hyperparathyroidism, Secondary etiology, Hyperparathyroidism, Secondary metabolism, Kidney Diseases complications, Kidney Diseases metabolism, Male, Middle Aged, Naphthalenes adverse effects, Parathyroid Hormone blood, Phosphorus blood, Practice Guidelines as Topic, Prospective Studies, Time Factors, Treatment Outcome, Vitamin D adverse effects, Vitamins adverse effects, Hyperparathyroidism, Secondary drug therapy, Kidney Diseases therapy, Naphthalenes administration & dosage, Renal Dialysis, Vitamin D administration & dosage, Vitamins administration & dosage
- Abstract
Background and Objectives: Patients with chronic kidney disease (CKD) receiving dialysis often develop secondary hyperparathyroidism with disturbed calcium and phosphorus metabolism. The National Kidney Foundation-Kidney Disease Outcomes Quality Initiative (KDOQI) was established to guide treatment practices for these disorders. The ACHIEVE study was designed to test two treatment strategies for achieving KDOQI goals., Design, Setting, Participants, Measurements: Individuals on hemodialysis treated with vitamin D sterols were enrolled in this 33-week study. Subjects were randomly assigned to treatment with either cinacalcet and low-dose vitamin D (Cinacalcet-D) or flexible vitamin D alone (Flex-D) to achieve KDOQI-recommended bone mineral targets. ACHIEVE included a 6-week screening phase, including vitamin D washout, a 16-week dose-titration phase, and an 11-week assessment phase., Results: Of 173 subjects enrolled, 83% of Cinacalcet-D and 67% of Flex-D subjects completed the study. A greater proportion of Cinacalcet-D versus Flex-D subjects had a >30% reduction in parathyroid hormone (PTH) (68% versus 36%, P < 0.001) as well as PTH <300 pg/ml (44% versus 23%, P = 0.006). The proportion of subjects simultaneously achieving targets for intact PTH (150-300 pg/ml) and calcium-phosphorus product (Ca x P) (<55 mg2/dl2) was also greater (21% versus 14%), but this was not statistically significant. This was attributable to 19% of Cinacalcet-D subjects with a PTH value below the KDOQI target range., Conclusions: Achievement of KDOQI targets was difficult, especially with Flex-D. Maintaining calcium and phosphorus target values precluded the use of vitamin D doses necessary to lower PTH to within the narrow target range and highlighted limitations inherent to the KDOQI treatment algorithm.
- Published
- 2008
- Full Text
- View/download PDF
43. The association of darbepoetin alfa with hemoglobin and health-related quality of life in patients with chronic kidney disease not receiving dialysis.
- Author
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Abu-Alfa AK, Sloan L, Charytan C, Sekkarie M, Scarlata D, Globe D, and Audhya P
- Subjects
- Aged, Anemia etiology, Creatinine blood, Darbepoetin alfa, Erythropoietin pharmacology, Female, Glomerular Filtration Rate, Humans, Kidney Failure, Chronic complications, Kidney Failure, Chronic physiopathology, Male, Renal Dialysis, Anemia blood, Erythropoietin analogs & derivatives, Hematinics pharmacology, Hemoglobins drug effects, Kidney Failure, Chronic blood, Quality of Life
- Abstract
Objective: Anemia of chronic kidney disease (CKD) decreases patients' health-related quality of life (HRQoL). The objective of this subanalysis was to determine the effect of every-other-week (Q2W) darbepoetin alfa on hemoglobin (Hb) levels and HRQoL measures in subjects with CKD who are naïve to erythropoiesis-stimulating agents (ESAs)., Methods: STAAR was a 52-week, multicenter, single-arm study. Subject inclusion criteria included: > or = 18 years of age and creatinine clearance < or = 70 mL/min or estimated glomerular filtration rate < or = 60 mL/min/1.73 m(2) but not receiving dialysis. Subjects included in this subanalysis were previously naïve to ESAs, had Hb < 11 g/dL, were initiated on subcutaneous Q2W darbepoetin alfa to achieve a Hb level not to exceed 12 g/dL, and had responses to at least one question on the KDQOL-CRI forms administered at baseline, week 12, and week 52., Results: Of 911 ESA-naïve subjects enrolled in the study, 277 (30.4%) were included in this subanalysis. The majority of subanalysis subjects were Caucasian (63.2%) and/or women (54.5%). Mean Hb concentrations and all KDQOL-CRI scores improved significantly between baseline and week 12 (p < 0.0001), and were maintained until week 52. Darbepoetin alfa was well tolerated., Conclusions: Darbepoetin alfa initiated Q2W achieved and maintained Hb targets, and significantly improved and maintained HRQoL in study subjects with CKD. Limitations of the study must be considered when extrapolating these results to assess the benefits of treatment on HRQoL in the general CKD population.
- Published
- 2008
- Full Text
- View/download PDF
44. The safety of intravenous iron sucrose use in the elderly patient.
- Author
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Reed J, Charytan C, and Yee J
- Subjects
- Adult, Age Factors, Aged, Aged, 80 and over, Anemia, Iron-Deficiency drug therapy, Anemia, Iron-Deficiency etiology, Erythropoietin therapeutic use, Female, Ferric Compounds administration & dosage, Ferric Compounds therapeutic use, Ferric Oxide, Saccharated, Geriatrics, Glucaric Acid, Hematinics administration & dosage, Hematinics therapeutic use, Humans, Injections, Intravenous, Kidney Failure, Chronic complications, Male, Middle Aged, Renal Dialysis, Ferric Compounds adverse effects, Hematinics adverse effects
- Abstract
Background: This study was undertaken to assess the safety and tolerability of the use of intravenous (IV) iron sucrose in the therapy of iron-deficiency anemia in elderly, hemodialysis dependent (HDD), chronic kidney disease (CKD) patients., Methods: This was a multicenter, open-label study in a large consecutive sample of 665 HDD-CKD patients (in 11 locations). Patients received IV iron sucrose therapy in treatment and maintenance dosing cycles over 10-week periods. There were 10 doses of 100 mg of iron sucrose in each drug cycle, and participants could receive multiple cycles of either or both regimens. Variables evaluated in the intent-to-treat population included adverse events (AEs), hemoglobin, and iron indices., Results: Of the 665 patients, 391 patients were under the age of 65 (younger adults) and 274 were 65 years of age or older (elder adults). Iron needs and erythropoietin dosing were similar in both the elder and younger adult patients. The incidence, severity, and nature of AEs and overall mortality were similar in both age groups. There were no drug-related deaths or drug-related serious AEs in either group. There were no hypersensitivity reactions or allergic reactions in either patient population, even among those with a prior history of intolerance to other parenteral-iron products. Comparison of the two age groups also revealed no differences in the efficacy of iron treatment as reflected by hemoglobin, transferring saturation, and ferritin response., Conclusions: There is no apparent difference in the safety and efficacy of iron sucrose between elder and younger adults in the treatment of iron-deficiency anemia in HDD patients with CKD.
- Published
- 2007
- Full Text
- View/download PDF
45. The safety and efficacy of ferumoxytol therapy in anemic chronic kidney disease patients.
- Author
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Spinowitz BS, Schwenk MH, Jacobs PM, Bolton WK, Kaplan MR, Charytan C, and Galler M
- Subjects
- Adult, Aged, Aged, 80 and over, Anemia blood, Anemia etiology, Chronic Disease, Female, Ferritins blood, Ferrosoferric Oxide adverse effects, Hematocrit, Hemoglobins, Humans, Injections, Intravenous, Kidney Failure, Chronic therapy, Male, Middle Aged, Peritoneal Dialysis, Reticulocyte Count, Transferrin metabolism, Treatment Outcome, Anemia drug therapy, Ferrosoferric Oxide administration & dosage, Kidney Failure, Chronic complications
- Abstract
Background: Administration of safe and effective iron therapy in patients with chronic kidney disease is a time consuming process. This phase II clinical trial studied ferumoxytol, a semi-synthetic carbohydrate-coated iron oxide administered by rapid intravenous injection to anemic chronic kidney disease patients (predialysis or undergoing peritoneal dialysis)., Methods: Inclusion criteria included hemoglobin < or =12.5 g/dL and transferrin saturation < or =35%. Twenty-one adult patients were randomized to receive ferumoxytol in a regimen of 4 doses of 255 mg iron in 2 weeks or 2 doses of 510 mg iron in 1 to 2 weeks. Ferumoxytol was administered at a rate of up to 30 mg iron/sec., Results: The maximum hemoglobin response following ferumoxytol administration occurred at 6 weeks, increasing from a baseline of 10.4 +/- 1.3 g/dL to 11.4 +/- 1.2 g/dL (P < 0.05). Ferritin increased from a baseline of 232 +/- 216 ng/mL to a maximum of 931 +/- 361 ng/mL at 2 weeks (P < 0.05), while the baseline transferrin saturation increased from 21 +/- 10% to 37 +/- 22% at 1 week (P < 0.05). Seven adverse events in 5 patients during this trial were deemed possibly related to ferumoxytol, none serious. These events included constipation, chills, tingling, a gastrointestinal viral syndrome, delayed pruritic erythematous rash, and transient pain at the injection site., Conclusion: Although larger studies are required, this small study demonstrates that ferumoxytol can be safe and effective in increasing iron stores, is associated with an increased hemoglobin response, and is well tolerated at a rapid infusion rate.
- Published
- 2005
- Full Text
- View/download PDF
46. First- and second-generation immunometric PTH assays during treatment of hyperparathyroidism with cinacalcet HCl.
- Author
-
Martin KJ, Jüppner H, Sherrard DJ, Goodman WG, Kaplan MR, Nassar G, Campbell P, Curzi M, Charytan C, McCary LC, Guo MD, Turner SA, and Bushinsky DA
- Subjects
- Adult, Aged, Calcium blood, Cinacalcet, Drug Monitoring methods, Female, Humans, Linear Models, Male, Middle Aged, Parathyroid Hormone analysis, Phosphorus blood, Treatment Outcome, Vitamin D blood, Hyperparathyroidism blood, Hyperparathyroidism drug therapy, Immunoassay methods, Naphthalenes administration & dosage, Parathyroid Hormone blood
- Abstract
Background: First-generation immunometric assays for "intact" parathyroid hormone (iPTH) also measure large N-terminally truncated PTH fragments, whereas second-generation assays, such as the "bio-intact" PTH (biPTH) assay, measure only full-length biologically active PTH(1-84). This study compared iPTH and biPTH assays during cinacalcet treatment in subjects with secondary HPT receiving dialysis., Methods: Four hundred and ten subjects were enrolled in a 26-week randomized, double-blind, placebo-controlled trial of oral cinacalcet (or placebo), 30 to 180 mg once daily, and efficacy was assessed using biPTH and iPTH assays., Results: Compared with control treatment, cinacalcet improved the management of secondary HPT. Both biPTH and iPTH decreased by 38%+/- 3% during weeks 13 to 26 in the cinacalcet group; biPTH increased by 23%+/- 4% and iPTH increased by 9.5%+/- 3% in the control group (P < 0.001). Fifty-six percent of cinacalcet subjects and 10% of control subjects had a > or = 30% reduction in biPTH, and 61% and 11%, respectively, had a > or = 30% reduction in iPTH. Significant correlations between biPTH and iPTH levels were observed throughout the study. Both assays correlated similarly with bone-specific alkaline phosphatase levels. The ratio of biPTH to iPTH was maintained at 56% +/- 1% after treatment in both treatment groups. Increasing serum calcium levels were associated with a decreasing ratio of biPTH to (iPTH-biPTH)., Conclusion: These data show that PTH can be monitored with either iPTH or biPTH assays during therapy with cinacalcet, and that cinacalcet therapy does not exert a major influence on the ratio between PTH(1-84) and large, N-terminally truncated PTH fragments.
- Published
- 2005
- Full Text
- View/download PDF
47. Cinacalcet hydrochloride is an effective treatment for secondary hyperparathyroidism in patients with CKD not receiving dialysis.
- Author
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Charytan C, Coburn JW, Chonchol M, Herman J, Lien YH, Liu W, Klassen PS, McCary LC, and Pichette V
- Subjects
- Calcium blood, Calcium therapeutic use, Chronic Disease, Cinacalcet, Double-Blind Method, Drug Therapy, Combination, Female, Humans, Hyperparathyroidism, Secondary blood, Hyperparathyroidism, Secondary etiology, Male, Middle Aged, Parathyroid Hormone blood, Phosphorus blood, Treatment Outcome, Vitamin D therapeutic use, Hyperparathyroidism, Secondary drug therapy, Kidney Diseases complications, Naphthalenes therapeutic use
- Abstract
Background: Secondary hyperparathyroidism develops early in patients with chronic kidney disease (CKD). Clinical guidelines from the National Kidney Foundation-Kidney/Disease Outcomes Quality Initiative emphasize the need to control parathyroid hormone (PTH), calcium, and phosphorus levels in patients with CKD not receiving dialysis to reduce poor outcomes. This phase 2 study evaluated the effects of the oral calcimimetic cinacalcet hydrochloride in patients with CKD not on dialysis therapy., Methods: A randomized, double-blind, placebo-controlled, 18-week study enrolled adults with an estimated glomerular filtration rate of 15 to 50 mL/min/1.73 m2 (0.25 to 0.83 mL/s/1.73 m2) and an intact PTH (iPTH) level greater than 130 pg/mL (ng/L). Cinacalcet (or placebo) was titrated from 30 to 180 mg once daily to obtain a 30% or greater reduction in iPTH levels from baseline., Results: Baseline mean iPTH levels were 243 pg/mL (ng/L) in the cinacalcet group (n = 27) and 236 pg/mL (ng/L) in the control group (n = 27). At baseline, 28% of subjects were being administered vitamin D sterols and 43% were being administered phosphate binders or calcium supplements. The addition of cinacalcet significantly decreased iPTH concentrations compared with controls during the efficacy-assessment phase: 56% versus 19% of subjects achieved a 30% or greater reduction in iPTH levels (P = 0.006), and mean iPTH levels decreased by 32% in the cinacalcet group, but increased by 6% in the control group (P < 0.001). Mean serum calcium and phosphorus levels remained within normal range throughout the study. Cinacalcet generally was well tolerated; the most frequent adverse events were gastrointestinal., Conclusion: This preliminary study provides evidence that cinacalcet is efficacious for the treatment of secondary hyperparathyroidism in subjects with CKD not receiving dialysis.
- Published
- 2005
- Full Text
- View/download PDF
48. Iron sucrose in hemodialysis patients: safety of replacement and maintenance regimens.
- Author
-
Aronoff GR, Bennett WM, Blumenthal S, Charytan C, Pennell JP, Reed J, Rothstein M, Strom J, Wolfe A, Van Wyck D, and Yee J
- Subjects
- Adult, Aged, Aged, 80 and over, Anemia etiology, Anemia mortality, Drug Hypersensitivity diagnosis, Female, Ferric Compounds adverse effects, Ferric Oxide, Saccharated, Glucaric Acid, Humans, Kidney Failure, Chronic mortality, Kidney Failure, Chronic therapy, Male, Middle Aged, Sepsis mortality, Anemia drug therapy, Ferric Compounds administration & dosage, Kidney Failure, Chronic complications, Renal Dialysis
- Abstract
Background: Parenteral iron replacement and maintenance are frequently required in hemodialysis patients. However, serious adverse events have been reported after single doses of some intravenous iron products. This multicenter phase IV clinical trial examined the safety of iron sucrose for the treatment of iron deficiency and for the maintenance of iron sufficiency in hemodialysis patients., Methods: In this safety study, iron sucrose was given in two dosing regimens. Iron deficient patients were treated with intravenous iron sucrose, 100 mg, during 10 consecutive hemodialysis sessions (replacement regimen). Iron replete patients were given iron sucrose, 100 mg intravenous (iv) over 5 minutes, weekly for 10 weeks (maintenance regimen). At the end of each 10-dose cycle, iron status was reassessed, and dosing during the subsequent cycle was based on the adequacy of iron stores as per Dialysis Outcome Quality Initiative (K/DOQI) Guidelines. With each dosing regimen, adverse events, if any, were recorded and described., Results: Six hundred and sixty-five hemodialysis patients, including 80 who had experienced previous intolerance to other parenteral iron preparations, received a total of 8583 doses of iron sucrose. One hundred eighty-eight patients received more than one iv iron cycle (replacement, maintenance, or both). There were no serious or life-threatening drug-related adverse events., Conclusion: Iron sucrose is safe when given as treatment for iron deficiency or for maintenance of iron stores.
- Published
- 2004
- Full Text
- View/download PDF
49. Controversies in iron management.
- Author
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Nissenson AR and Charytan C
- Subjects
- Anemia etiology, Humans, Anemia drug therapy, Iron administration & dosage, Iron adverse effects, Kidney Failure, Chronic complications
- Abstract
Background: Iron therapy is required in hemodialysis patients receiving erythropoietic stimulators in order to achieve the target hemoglobin in the most efficient way. While oral iron has been disappointing in this regard, parenteral iron has been widely used, despite a significant incidence of severe side effects when iron dextran is used. The recent availability of a more effective form of oral iron (heme-iron), and safer forms of parenteral iron (iron sucrose and iron gluconate) has made iron management in this population simpler. Many questions remain, however, about the use, efficacy, and safety of these compounds in hemodialysis patients., Methods: Current literature was reviewed and combined with the authors' clinical experience to address a number of current questions regarding the use of iron in hemodialysis patients., Results: Although oral non-heme iron is infrequently sufficient to maintain iron stores in hemodialysis patients, recent studies suggest that heme-iron may be more useful in this regard. Heme-iron is absorbed to a greater extent than non-heme iron, and is better tolerated. Small studies have shown that when heme-iron is administered, less parenteral iron and lower doses of erythropoietin (EPO) are needed to maintain target hemoglobin. Current evidence suggests that both iron sucrose and iron gluconate are safer than iron dextran, and the latter should only be used in extraordinary circumstances. While in vitro studies have demonstrated some differences in the effects of iron sucrose and iron gluconate on cellular toxicity, the clinical importance of these has not been determined. Both compounds can be used safely for repletion and maintenance therapy, and doses of up to 300 mg of either are generally well tolerated when such higher doses are needed, as in peritoneal dialysis (PD) patients or chronic kidney disease (CKD) patients not on dialysis., Conclusion: A number of questions remain regarding the appropriate use, efficacy, and potential toxicity of iron therapy in dialysis patients. Further prospective research should address the myriad questions raised in this review.
- Published
- 2003
- Full Text
- View/download PDF
50. Prediction of single-pool Kt/v based on clinical and hemodialysis variables using multilinear regression, tree-based modeling, and artificial neural networks.
- Author
-
Goldfarb-Rumyantzev A, Schwenk MH, Liu S, Charytan C, and Spinowitz BS
- Subjects
- Algorithms, Female, Humans, Male, Predictive Value of Tests, Computer Simulation, Models, Statistical, Neural Networks, Computer, Renal Dialysis standards
- Abstract
The impact of clinical and other variables on single-pool Kt/V (spKt/V) is unclear. The goal of this study was to identify clinical and hemodialysis treatment related predictors of spKt/V and use multilinear regression (LM), tree-based modeling (TBM), and artificial neural networks (ANN) to predict actual spKt/V. When 602 hemodialysis records were analyzed, spKt/V correlated with urea reduction ratio (URR) (r=0.91) and weakly with other variables. When URR was excluded, both LM and TBM identified normalized protein equivalent of total nitrogen appearance (nPNA), prehemodialysis (HD) and post-HD weights, blood flow rate, and dialyzer surface area as predictors of spKt/V. LM identified sex, height, dialyzer ultrafiltration coefficient (Kuf), and duration of dialysis, while TBM identified the dialysis nurse code. Prediction algorithms were developed from a "training" dataset, and validated on a separate ("testing") dataset. Correlation coefficients of predicted spKt/V with measured spKt/V with and without nPNA respectively were 0.745 and 0.679 for LM, 0.6 and 0.512 for TBM, and 0.634 for ANN, which performed better without using nPNA.
- Published
- 2003
- Full Text
- View/download PDF
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