177 results on '"Burt, RK"'
Search Results
2. Improvement in left atrial reservoir strain following hematopoietic stem cell transplant in patients with systemic sclerosis
- Author
-
Chen, C, primary, Nishtala, A, additional, Groenendyk, JW, additional, Schultz, W, additional, Li, E, additional, Shah, SJ, additional, Burt, RK, additional, and Freed, BH, additional
- Published
- 2021
- Full Text
- View/download PDF
3. Heterogeneous pattern of improvement in right ventricular mechanics following hematopoietic stem cell transplant in patients with systemic sclerosis
- Author
-
Chen, C, primary, Nishtala, A, additional, Groenendyk, JW, additional, Schultz, WM, additional, Li, E, additional, Shah, SJ, additional, Burt, RK, additional, and Freed, BH, additional
- Published
- 2021
- Full Text
- View/download PDF
4. Immune Profile of Severe Refractory Crohn’s Disease Patients Candidates to Autologous Hematopoietic Stem Cell Transplantation
- Author
-
Bueno, Ruiz Ma, and Burt Rk
- Subjects
Crohn's disease ,Immune system ,Refractory ,business.industry ,medicine.medical_treatment ,Immunology ,medicine ,Hematopoietic stem cell transplantation ,medicine.disease ,business - Published
- 2020
5. Engraftment syndrome: a common cause for rash and fever following autologous hematopoietic stem cell transplantation for multiple sclerosis
- Author
-
Oyama, Y, Cohen, B, Traynor, A, Brush, M, Rodriguez, J, and Burt, RK
- Published
- 2002
- Full Text
- View/download PDF
6. Collection of hematopoietic stem cells from patients with autoimmune diseases
- Author
-
Burt, RK, Fassas, A, Snowden, JA, van Laar, JM, Kozak, T, Wulffraat, NM, Nash, RA, Dunbar, CE, Arnold, R, Prentice, G, Bingham, S, Marmont, AM, and McSweeney, PA
- Published
- 2001
- Full Text
- View/download PDF
7. Herpes simplex thymidine kinase (HStk) transgenic donor lymphocytes
- Author
-
Burt, RK, Drobyski, WR, Traynor, AE, and Jr, CJLink
- Published
- 1999
- Full Text
- View/download PDF
8. Stem cell component therapy: supplementation of unmanipulated marrow with CD34 enriched peripheral blood stem cells
- Author
-
Burt, RK, Kuzel, TM, Fishman, M, Brush, M, Villa, M, Welles, C, Rosen, S, and Traynor, AE
- Published
- 1999
- Full Text
- View/download PDF
9. T cell-depleted autologous hematopoietic stem cell transplantation for multiple sclerosis: report on the first three patients
- Author
-
Burt, RK, Traynor, AE, Cohen, B, Karlin, KH, Davis, FA, Stefoski, D, Terry, C, Lobeck, L, Russell, EJ, Goolsby, C, Rosen, S, Gordon, LI, Keever-Taylor, C, Brush, M, Fishman, M, and Burns, WH
- Published
- 1998
- Full Text
- View/download PDF
10. Allogeneic stem cell transplantation for Evans syndrome
- Author
-
Oyama, Y, Papadopoulos, EB, Miranda, M, Traynor, AE, and Burt, RK
- Published
- 2001
- Full Text
- View/download PDF
11. Allogeneic hematopoietic stem cell transplantation for advanced mycosis fungoides: evidence of a graft-versus-tumor effect
- Author
-
Burt, RK, Guitart, J, Traynor, A, Link, C, Rosen, S, Pandolfino, T, and Kuzel, TM
- Published
- 2000
- Full Text
- View/download PDF
12. Hematopoietic stem cell transplantation for systemic sclerosis: if you are confused, remember: 'it is a matter of the heart'.
- Author
-
Burt RK, Shah SJ, Gheorghiade M, Ruderman E, and Schroeder J
- Published
- 2012
- Full Text
- View/download PDF
13. Prevalence and reversibility of pulmonary dysfunction in refractory systemic lupus: improvement correlates with disease remission following hematopoietic stem cell transplantation.
- Author
-
Traynor AE, Corbridge TC, Eagan AE, Barr WG, Liu Q, Oyama Y, and Burt RK
- Abstract
Aim: To report the prevalence and reversibility of pulmonary function test (PFT) abnormalities among systemic lupus erythematosus (SLE) patients, refractory to therapy, undergoing hematopoietic stem cell transplantation (HSCT).Methods: Thirty-four SLE patients received 200 mg/kg cyclophosphamide and 90 mg/kg equine antithymocyte globulin followed by HSCT. PFTs were performed prior to, at 6 months, and yearly following HSCT.Results: The prevalence of significant PFT abnormalities was high (97%). Low FEV1 and FVC occurred in 26 of 34 patients (76%). A significant abnormality in diffusion capacity of the lung for carbon monoxide (DLCO) occurred in 26 of 32 individuals able to complete DLCO testing (81%). DLCO less than/equal to 50% of predicted occurred in 18 of 32 patients (56%). Of these 18 patients, 4 had no thoracic diagnosis and 7 had no pulmonary diagnosis. For 3 of 11 patients with a DLCO less than/equal to 50% of predicted and a prior pulmonary diagnosis, the only diagnosis had been pleurisy. Ten of the 34 patients (29%) identified the lung as a target organ of the lupus and carried a pulmonary diagnosis, as indicated in Table 1 [For actual table, see page 1682 of original document.]. Three patients had acute alveolar hemorrhage, four patients had acute lupus pneumonitis, two patients had shrinking lung syndrome (SLS), and one patient had SLE-related pulmonary hypertension. Of these 10 patients, 4 had received prior mechanical ventilation, and 7 had required home supplemental inspired oxygen. Patients have been monitored less than/equal to 77 months, and 28 patients have been monitored > 18 months after HSCT. Five of 28 patients had a normal entry FVC; for each, the FVC remains normal. Of the 23 patients with an abnormal baseline FVC, 18 have improved, 15 completely and 3 partially. Eight of these 18 patients also have improved DLCO. The two patients with a diagnosis of SLS and one patient with SLE-related pulmonary hypertension improved in both parameters. Only 5 of 23 patients with an abnormal FVC did not improve. Each of these five patients retained active lupus in spite of HSCT.Conclusion: The prevalence of lung impairment among SLE patients requiring long-term immune suppression is high. Following HSCT, pulmonary impairments can improve, which is sustained if disease control is sustained. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
14. Hematopoietic stem cell transplantation for severe and refractory lupus: analysis after five years and fifteen patients.
- Author
-
Traynor AE, Barr WG, Rosa RM, Rodriguez J, Oyama Y, Baker S, Brush M, and Burt RK
- Published
- 2002
15. Paediatric rheumatology workshop/series editor: P Woo. Haematopoietic stem cell transplantation for active systemic lupus erythematosus.
- Author
-
Traynor, A and Burt, RK
- Published
- 1999
- Full Text
- View/download PDF
16. Autologous hematopoietic stem cell transplantation in refractory rheumatoid arthritis: sustained response in two of four patients.
- Author
-
Burt RK, Georganas C, Schroeder J, Traynor A, Stefka J, Schuening F, Graziano F, Mineishi S, Brush M, Fishman M, Welles C, Rosen S, and Pope R
- Published
- 1999
17. Autologous Hemopoietic Stem Cell Transplantation in Severe Rheumatoid Arthritis: A Report from the EBMT and ABMTR
- Author
-
Snowden, Ja, Passweg, J., Moore, Jj, Milliken, S., Cannell, P., Laar, Jm, Verburg, R., Szer, J., Taylor, K., Joske, D., Rule, S., Bingham, Sj, Emery, P., Burt, Rk, Lowenthal, Rm, Durez, P., Mckendry, Rj, Pavletic, Sz, ILDEFONSO ESPIGADO, Jantunen, E., Kashyap, A., Rabusin, M., Brooks, P., Bredeson, C., and Tyndall, A.
- Subjects
Adult ,Male ,Salvage Therapy ,Hematopoietic Stem Cell Transplantation ,Middle Aged ,Transplantation, Autologous ,United States ,Arthritis, Rheumatoid ,Europe ,Treatment Outcome ,Databases as Topic ,Humans ,Female ,Registries ,Retrospective Studies - Abstract
Since 1996, autologous hemopoietic stem cell transplantation (HSCT) has been used to treat severe rheumatoid arthritis (RA). To date, published reports have been individual cases or series containing small numbers. This study combined the worldwide experience in a single analysis.The Autoimmune Disease Databases of the European Group for Blood and Marrow Transplantation (EBMT) and the Autologous Blood and Marrow Transplant Registry (ABMTR) were used to identify patients with RA treated with autologous HSCT. Further information relating to patient and treatment-specific variables was obtained by questionnaire.Seventy-six patients were registered from 15 centers. Seventy-three patients had received autologous HSCT, and in 3 patients hematopoietic stem cells (HSC) were mobilized but not transplanted. Transplanted patients (median age 42 yrs, 74% female, 86% rheumatoid factor positive) had been previously treated with a mean of 5 (range 2-9) disease modifying antirheumatic drugs (DMARD). Significant functional impairment was present, with a median Health Assessment Questionnaire (HAQ) score of 1.4 (range 1.1-2.0) and Steinbrocker score mean 2.39 (SD 0.58). The high dose treatment regimen was cyclophosphamide (CYC) alone in the majority of patients, mostly 200 mg/kg (n = 62). Seven patients received anti-thymocyte globulin (ATG) in addition to CYC, 2 patients busulfan and CYC (BuCYC), and one patient CYC with total body irradiation and ATG. One patient received fludarabine with ATG. Following treatment, one patient received bone marrow but the rest received chemotherapy and/or granulocyte colony-stimulating factor mobilized peripheral blood stem cells. The harvest was unmanipulated in 28 patients, the rest receiving some form of lymphocyte depletion, mostly through CD34+ selection. Median followup was 16 months (range 3-55). Responses were measured using the American College of Rheumatology (ACR) criteria. Forty-nine patients (67%) achieved at least ACR 50% response at some point following transplant. There was a significant reduction in the level of disability measured by the HAQ (p0.005). Most patients restarted DMARD within 6 months for persistent or recurrent disease activity, which provided disease control in about half the cases. Response was significantly related to seronegative RA (p = 0.02) but not to duration of disease, number of previous DMARD, presence of HLA-DR4, or removal of lymphocytes from the graft. There was no direct transplant related mortality, although one patient, treated with the BuCYC regimen, died 5 months post-transplant from infection and incidental non-small cell lung cancer.Autologous HSCT is a relatively safe form of salvage treatment in severe, resistant RA. In these open label studies significant responses were achieved in most patients, with over 50% achieving an ACR 50 or more response at 12 months. Although the procedure is not curative, recurrent or persistent disease activity may be subsequently controlled in some patients with DMARD. Clinical trials are necessary to develop this approach in patients with aggressive disease who have failed conventional treatment including anti-tumor necrosis factor agents.
18. Hematopoietic stem-cell transplantation for systemic lupus erythematosus.
- Author
-
Burt RK, Traynor A, and Ramsey-Goldman R
- Published
- 1997
19. Treatment of severe systemic lupus erythematosus with high-dose chemotherapy and haemopoietic stem-cell transplantation: a phase I study.
- Author
-
Traynor AE, Schroeder J, Rosa RM, Cheng D, Stefka J, Mujais S, Baker S, and Burt RK
- Published
- 2000
- Full Text
- View/download PDF
20. Extracorporeal membrane oxygenation (ECMO) during aplasia: A bridge towards myopericarditis recovery after autologous hematopoietic stem cell transplant for systemic sclerosis and recent Coronarovirus disease (COVID-19) vaccination.
- Author
-
Cacciatore C, Baudet M, Jean E, Presente S, Para M, Sonneville R, Arangalage D, Ait Abdallah N, Sicre de Fontbrune F, Prata PH, Crichi B, Hervier B, Parquet N, Soulat G, Mousseaux E, Burt RK, and Farge D
- Abstract
Systemic sclerosis (SSc) is a rare autoimmune disease (AD), characterised by early diffuse vasculopathy, activation of the immune response and progressive skin and internal organ fibrosis. In severe progressive diffuse SSc (dSSc), autologous hematopoietic stem cell transplantation (aHSCT) improves survival, despite its own risk of complications and transplant related mortality (TRM). We present herein the case of a dSSc patient undergoing aHSCT with low dose cyclophosphamide conditioning and sudden acute myopericarditis and cardiogenic shock, four weeks after a second mRNA SARS-CoV-2 vaccine (Pfizer) injection. Four days of extracorporeal membrane oxygenation (ECMO) support during the aplasia period, allowed to observe full cardiac function recovery and progressive SSc rehabilitation with sustained disease response at 30 months follow-up. This report illustrates, for the first time to our knowledge, that ECMO can be indicated despite aplasia during aHSCT and successfully used as a bridge towards heart function recovery in highly selected and fragile AD patients. We review the factors that may contribute to endothelial and myocardial stunning and acute reversible cardiac failure in SSc and aggravate intrinsic endothelial injury during the aHSCT procedure. These classically include: cyclophosphamide drug toxicity, viral infections and autoimmune activation with disease flair per se. In the COVID-19 pandemic times, acute myocarditis due to recent viral infection or mRNA vaccine per se, must also be considered., (Copyright © 2024. Published by Elsevier Masson SAS.)
- Published
- 2024
- Full Text
- View/download PDF
21. Real-world application of autologous hematopoietic stem cell transplantation in 507 patients with multiple sclerosis.
- Author
-
Burt RK, Han X, Quigley K, Helenowski IB, and Balabanov R
- Subjects
- Disease Progression, Humans, Transplantation, Autologous, Hematopoietic Stem Cell Transplantation methods, Hyperthyroidism, Multiple Sclerosis complications, Multiple Sclerosis therapy, Multiple Sclerosis, Chronic Progressive diagnosis, Multiple Sclerosis, Relapsing-Remitting therapy
- Abstract
Objective: To investigate the results of real-world application of non-myeloablative autologous HSCT for multiple sclerosis (MS)., Methods: Between July 2003 and October 2019 at a single center (Northwestern University), 414 patients with relapsing remitting MS (RRMS) and 93 patients with newly diagnosed secondary progressive MS (SPMS) underwent non-myeloablative HSCT., Results: There was one treatment-related death (0.19%) due to hospital-acquired legionella pneumonia, and one patient developed neutropenic bacteremia (Klebsiella pneumonia) without sepsis. Overall 5-year survival was 98.8%. Post HSCT secondary autoimmune diseases (2nd ADs) were idiopathic thrombocytopenia (ITP) and hypo or hyperthyroidism. ITP was highest with alemtuzumab (14%) and 0 to 2.8% for the non-alemtuzumab regimens. After HSCT, 16 patients developed hypothyroidism (3.5%) and 15 developed hyperthyroidism / Grave's disease (3.3%). Relapse free survival (RFS) at 5 years for RRMS and SPMS was 80.1% and 98.1%, respectively, while progression free survival (PFS) at 4 years for RRMS and SPMS was 95% versus 66%, respectively. For patients with RRMS, the EDSS significantly improved (p < 0.0001) at each follow-up from a pre-HSCT mean of 3.87 to 2.51, 2.50, 2.41, 2.33, and 2.19 at 1, 2, 3, 4, and 5 years, respectively. For SPMS, the EDSS improved significantly only at 1 year but not thereafter. For SPMS, the mean baseline EDSS of 5.09 changed post-HSCT to 4.85 (p = 0.04), 4.88 (p = 0.2), 4.92 (p = .27), 4.72 (p = 0.07), and 4.2 (p = 0.21) at 1, 2, 3, 4, 5 years, respectively., Conclusion: In patients with RRMS, autologous non-myeloablative HSCT is an effective one-time therapy, while HSCT appears of less benefit for newly diagnosed SPMS., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.)
- Published
- 2022
- Full Text
- View/download PDF
22. Long term outcomes of the French ASTIS systemic sclerosis cohort using the global rank composite score.
- Author
-
Ait Abdallah N, Wang M, Lansiaux P, Puyade M, Berthier S, Terriou L, Charles C, Burt RK, Hudson M, and Farge D
- Subjects
- Cyclophosphamide therapeutic use, Humans, Progression-Free Survival, Transplantation, Autologous, Hematopoietic Stem Cell Transplantation, Scleroderma, Systemic therapy
- Abstract
Two randomised trials (ASTIS, SCOT) of Autologous Hematopoietic Stem Cell Transplantation (AHSCT) versus monthly Cyclophosphamide for severe Systemic Sclerosis (SSc) patients used similar inclusion criteria, but different primary endpoints: event-free-survival (EFS) at 24 months in ASTIS versus the global rank composite score (GRCS) at 54 months in SCOT. Here we analysed the French ASTIS cohort (n = 49) outcome using the same GRCS endpoint as reported in SCOT. All patients, randomised to AHSCT (n = 26) or Cyclophosphamide (n = 23), were evaluated for the non-parametric GRCS endpoint based on: death, EFS, forced vital capacity (FVC), Health Assessment Questionnaire Disability Index (HAQ-DI) and modified Rodnan skin score (mRSS) at 60 months. Secondary endpoints were: EFS, overall survival (OS), HAQ DI and organ status. In intention-to-treat analysis, the GRCS demonstrated superiority for AHSCT (median: 9 versus -19, p = 0.018), mRSS (Δ mRSS: -16 versus -9, p = 0.02), and HAQ-DI (ΔHAQ-DI: -0.89 versus -0.2, p = 0.05) with no significant difference in OS, EFS, lung, heart and kidney function between the groups. In conclusion, this study demonstrates long term benefits of non-myeloablative AHSCT when assessed by the five longitudinal measures within GRCS affording direct primary endpoint comparison between ASTIS and SCOT., (© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)
- Published
- 2021
- Full Text
- View/download PDF
23. Autologous haematopoietic stem cell transplantation as a first-line disease-modifying therapy in patients with 'aggressive' multiple sclerosis.
- Author
-
Das J, Snowden JA, Burman J, Freedman MS, Atkins H, Bowman M, Burt RK, Saccardi R, Innocenti C, Mistry S, Laud PJ, Jessop H, and Sharrack B
- Subjects
- Humans, Retrospective Studies, Transplantation, Autologous, Treatment Outcome, Hematopoietic Stem Cell Transplantation, Multiple Sclerosis therapy
- Abstract
Background: Autologous haematopoietic stem cell transplantation (AHSCT) is an effective treatment for patients with multiple sclerosis (MS) who have highly active disease, despite the use of standard disease-modifying therapies (DMTs). However, the optimal time for offering AHSCT to patients with 'aggressive' MS is yet to be established., Objectives: The objective was to explore the safety and efficacy of AHSCT as a first-line DMT in patients with 'aggressive' MS., Methods: All patients with 'aggressive' MS who received AHSCT as a first-line DMT in five European and North American centres were retrospectively evaluated., Results: Twenty patients were identified. The median interval between diagnosis and AHSCT was 5 (1-20) months. All had multiple poor prognostic markers with a median pre-transplant Expanded Disability Status Scale (EDSS) score of 5.0 (1.5-9.5). After a median follow-up of 30 (12-118) months, the median EDSS score improved to 2.0 (0-6.5, p < 0.0001). No patient had further relapses. Three had residual magnetic resonance imaging (MRI) disease activities in the first 6 months post-transplant, but no further new or enhancing lesions were observed in subsequent scans., Conclusion: AHSCT is safe and effective as a first-line DMT in inducing rapid and sustained remission in patients with 'aggressive' MS.
- Published
- 2021
- Full Text
- View/download PDF
24. New autoimmune diseases after autologous hematopoietic stem cell transplantation for multiple sclerosis.
- Author
-
Burt RK, Muraro PA, Farge D, Oliveira MC, Snowden JA, Saccardi R, Han X, Quigley K, Bueno V, Frasca D, Fedorenko D, and Burman J
- Subjects
- Humans, Transplantation Conditioning adverse effects, Transplantation, Autologous, Autoimmune Diseases etiology, Graft vs Host Disease, Hematopoietic Stem Cell Transplantation adverse effects, Multiple Sclerosis therapy
- Abstract
Secondary autoimmune diseases (2ndADs), most frequently autoimmune cytopenias (AICs), were first described after allogeneic hematopoietic stem cell transplantation (HSCT) undertaken for malignant and hematological indications, occurred at a prevalence of ~5-6.5%, and were attributed to allogeneic immune imbalances in the context of graft versus host disease, viral infections, and chronic immunosuppression. Subsequently, 2ndADs were reported to complicate roughly 2-14% of autologous HSCTs performed for an autoimmune disease. Alemtuzumab in the conditioning regimen has been identified as a risk for development of 2ndADs after either allogeneic or autologous HSCT and is consistent with the high rates of 2ndADs when using alemtuzumab as monotherapy. Due to the significant consequences but variable incidence, depending on conditioning regimen, of 2ndADs and similarity in known immune reconstitution kinetics after autologous HSCT for autoimmune diseases and after alemtuzumab monotherapy, we propose that an imbalance between B and T lineage regeneration early after HSCT may underlie the pathogenesis of 2ndADs.
- Published
- 2021
- Full Text
- View/download PDF
25. The Cost Effectiveness of Immunoglobulin vs. Hematopoietic Stem Cell Transplantation for CIDP.
- Author
-
Burt RK, Tappenden P, Balabanov R, Han X, Quigley K, Snowden JA, and Sharrack B
- Abstract
Background: Intravenous immunoglobulin (IVIG) is effective as standard first line therapy for chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), but some patients remain dependent on its long-term use. Recently, we have reported that autologous non-myeloablative hematopoietic stem cell transplantation (HSCT) is an effective second line therapy for CIDP. Objectives: To compare the cost of chronic IVIG vs. autologous HSCT (a one-time therapy), we collected data on patients with CIDP undergoing HSCT between 2017 and 2019. This was compared with published literature on the costs and efficacy defined by the Inflammatory Neuropathy Cause And Treatment (INCAT) disability score, Medical Research Council (MRC) sum score, hand grip strength, and SF-36 quality of life (QOL) for CIDP. Methods: Between 2017 and 2019, nineteen patients with chronic CIDP (mean disease treatment duration prior to HSCT of 6 years) underwent autologous HSCT with mean cost of $108,577 per patient (range $56,327-277,119, standard deviation $53,092). After HSCT, 80% of patients remain IVIG and immune treatment free for up to 5 years. In comparison, published cost of IVIG treatment in the USA for an average CIDP patient exceeds $136,000 per year. Despite remaining treatment free, HSCT demonstrated greater improvement in efficacy compared to immunoglobulins. Recommendations: Given the long-term treatment-free remission and better outcome measurements, autologous HSCT is more cost effective than long-term IVIG treatment in patients with chronic CIDP. However, costs will depend on patient selection, the HSCT regimen, and regional variations. Further analysis of the health economics, i.e., cost/outcome ratio, of HSCT as therapy for chronically IVIG dependent CIDP is warranted., 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 © 2021 Burt, Tappenden, Balabanov, Han, Quigley, Snowden and Sharrack.)
- Published
- 2021
- Full Text
- View/download PDF
26. Autologous Hematopoietic Stem Cell Transplantation for Stiff-Person Spectrum Disorder: A Clinical Trial.
- Author
-
Burt RK, Balabanov R, Han X, Quigley K, Arnautovic I, Helenowski I, Rose J, and Siddique T
- Subjects
- Adult, Female, Follow-Up Studies, Humans, Male, Middle Aged, Stiff-Person Syndrome drug therapy, Transplantation, Autologous, Hematopoietic Stem Cell Transplantation adverse effects, Immunosuppressive Agents administration & dosage, Outcome Assessment, Health Care, Stiff-Person Syndrome physiopathology, Stiff-Person Syndrome therapy
- Abstract
Objective: To test the hypothesis that autologous nonmyeloablative hematopoietic stem cell transplantation (HSCT) is safe and shows efficacy in the treatment of stiff-person spectrum disorder (SPSD)., Methods: Twenty-three participants were treated in a prospective open-label cohort study of safety and efficacy. After stem cell mobilization with cyclophosphamide (2 g/m
2 ) and filgrastim (5-10 µg/kg/d), participants were treated with cyclophosphamide (200 mg/kg) divided as 50 mg/kg IV on day -5 to day -2; rabbit anti-thymocyte globulin (thymoglobulin) given intravenously at 0.5 mg/kg on day -5, 1 mg/kg on days -4 and -3, and 1.5 mg/kg on days -2, and -1 (total dose 5.5 mg/kg); and rituximab 500 mg IV on days -6 and +1. Unselected peripheral blood stem cells were infused on day 0. Safety was assessed by survival and National Cancer Institute common toxicity criteria for adverse events during HSCT. Outcome was assessed by ≥50% decrease or discontinuation of antispasmodic drugs and by quality of life instruments., Results: There was no treatment-related mortality. One participant died 1 year after transplantation of disease progression. Of the 74% of participants who responded, 47% have stayed in remission for a mean of 3.5 years; 26% did not respond. Compared to nonresponders, responders were more likely to have pretransplantation intermittent muscle spasms (16 of 17 vs 0 of 6), normal reflexes (12 of 17 vs 0 of 6), and positive CSF anti-glutamic acid decarboxylase serology (12 of 14 vs 2 of 6). Compared to responders, nonresponders were more likely to have lead pipe rigidity (4 of 6 vs 0 of 17) and EMG-documented simultaneous contraction of agonist/antagonist limb muscles (4 of 6 vs 1 of 17). Pre-HSCT use of prescription serotonin selective receptor inhibitor (SSRI) or serotonin and norepinephrine reuptake inhibitor (SNRI) was more common in those who relapsed or never responded (9 of 12) compared to those responders who never relapsed (0 of 11)., Conclusion: In this cohort, HSCT was safe, but the beneficial effect of HSCT was variable and confined predominately to participants with episodic spasms and normal tendon reflexes without simultaneous cocontraction of limb agonist/antagonist muscles who were not taking SSRI or SNRI antidepressants., Classification of Evidence: This study provides Class IV evidence that, for a subset of people with SPSD, autologous nonmyeloablative HSCT improves outcomes., Clinicaltrialsgov Identifier: NCT02282514., (© 2020 American Academy of Neurology.)- Published
- 2021
- Full Text
- View/download PDF
27. Cardiac safe hematopoietic stem cell transplantation for systemic sclerosis with poor cardiac function: a pilot safety study that decreases neutropenic interval to 5 days.
- Author
-
Burt RK, Han X, Quigley K, Arnautovic I, Shah SJ, Lee DC, Freed BH, Jovanovic B, and Helenowski IB
- Subjects
- Cyclophosphamide, Humans, Neoplasm Recurrence, Local, Transplantation Conditioning, Vidarabine, Hematopoietic Stem Cell Transplantation, Scleroderma, Systemic
- Abstract
We compared three fludarabine-based regimens for systemic sclerosis patients with a high-risk cardiac phenotype that according to EBMT criteria would be a contraindication for a high-dose cyclophosphamide (200 mg/kg) transplant regimen. All three regimens included fludarabine, ATG, and cyclophosphamide (60 mg/kg), while two regimens also included rituximab with or without IVIG. Treatment related mortality (TRM) was 2.4%. The mean number of days of neutropenia (ANC < 500) was 5.2, the mean number of platelet and red blood cell transfusions was 0.3 and 1.85, respectively. Skin score, forced vital capacity (FVC), and total lung capacity (TLC) improved with all three regimens. For patients whose regimen did not include rituximab versus those that included rituximab, 1-year overall relapse rate was higher 36% (5/14) versus 3.6% (1 of 28) (p = 0.01), secondary autoimmune diseases were higher 21% (3/14) versus 0% (0/28) (p = 0.03), and upper respiratory tract infections were higher 28% (4/14) versus 3.6% (1/28) (p = 0.04). In this safety study, a fludarabine-based regimen was relatively safe with a TRM of 2.4% and a neutropenic interval of only 5.2 days in systemic sclerosis patients with a high-risk cardiac phenotype. The addition of rituximab decreased 1-year relapse rate, risk of late secondary autoimmune diseases, and upper-respiratory tract infections.
- Published
- 2021
- Full Text
- View/download PDF
28. A pilot feasibility study of non-myeloablative allogeneic hematopoietic stem cell transplantation for refractory Crohn Disease.
- Author
-
Burt RK, Craig R, Yun L, Halverson A, Quigley K, Arnautovic I, and Han X
- Subjects
- Feasibility Studies, Humans, Myeloablative Agonists, Transplantation Conditioning, Crohn Disease therapy, Hematopoietic Stem Cell Transplantation
- Published
- 2020
- Full Text
- View/download PDF
29. Hematopoietic stem cell transplantation for chronic inflammatory demyelinating polyradiculoneuropathy.
- Author
-
Burt RK, Balabanov R, Tavee J, Han X, Sufit R, Ajroud-Driss S, Jovanovic B, Quigley K, Arnautovic I, Helenowski I, and Sharrack B
- Subjects
- Hand Strength, Humans, Immunoglobulins, Intravenous therapeutic use, Transplantation, Autologous, Hematopoietic Stem Cell Transplantation, Polyradiculoneuropathy, Chronic Inflammatory Demyelinating therapy
- Abstract
Objective: Determine toxicity and efficacy of autologous hematopoietic stem cell transplantation (HSCT) for patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) who are dependent on intravenous immunoglobulins or plasmapheresis., Methods: Unselected peripheral blood stem cells were re-infused on day 0 after conditioning with cyclophosphamide 200 mg/kg/intravenously (IV), rATG (thymoglobulin) 5.5 mg/kg/IV, and rituximab 1000 mg/IV., Results: Sixty-six patients underwent HSCT for CIDP. Data on sixty patients with a mean follow-up of 4.5 years (range 2-5 years) were available for analysis. There were no treatment-related deaths, and overall survival was 97%. Post-transplant immune medication-free remission was 80%, 78%, 76% 78%, and 83% at 1, 2, 3, 4, and 5 years. Ambulation without assistance improved from 33% pre-HSCT to 82% 82%, 81%, 86%, and 83% at 1, 2, 3, 4, and 5 years, respectively. Mean right/left hand grip strength (kg) improved significantly (all p values < 0.01) from 18.1/16.5 pre-HSCT to 26.3/25.4, 29.2/28.2, 28.8/28.6, 30.3/25.5, and 30.8/29.1 at 1, 2, 3, 4, and 5 years, respectively. Average nerve conduction velocity (NCV) (m/s) improved significantly (all p values ≤ 0.001) from a mean of 27.2 pre-HSCT to 33.5, 33.8, 37.7, 38.2, and 38.3 at 1, 2, 3, 4, and 5 years, respectively. Average compound motor action potential (CMAP) (mv) improved significantly (p values ≤ 0.001) from a mean of 3.6 pre-HSCT to 4.6, 4.6, 5.0, 5.1, and 4.1 at 1, 2, 3, 4, and 5 years, respectively., Conclusion: A randomized trial is indicated to verify these results and confirm that HSCT reverses disability and offers long-term immune therapy independence.
- Published
- 2020
- Full Text
- View/download PDF
30. Medical, ethical, and legal aspects of hematopoietic stem cell transplantation for Crohn's disease in Brazil.
- Author
-
Ruiz MA, Junior RLK, Piron-Ruiz L, Saran PS, Castiglioni L, de Quadros LG, Pinho TS, and Burt RK
- Abstract
Crohn's disease (CD) is a chronic inflammatory bowel disease that can affect any part of the gastrointestinal tract. The etiology of CD is unknown; however, genetic, epigenetic, environmental, and lifestyle factors could play an essential role in the onset and establishment of the disease. CD results from immune dysregulation due to loss of the healthy symbiotic relationship between host and intestinal flora and or its antigens. It affects both sexes equally with a male to female ratio of 1.0, and its onset can occur at any age, but the diagnosis is most commonly observed in the range of 20 to 40 years of age. CD diminishes quality of life, interferes with social activities, traumatizes due to the stigma of incontinence, fistulae, strictures, and colostomies, and in severe cases, affects survival when compared to the general population. Symptoms fluctuate between periods of remission and activity in which complications such as fistulas, strictures, and the need for bowel resection, surgery, and colostomy implantation make up the most severe aspects of the disease. CD can be progressive and the complications recurrent despite treatment with anti-inflammatory drugs, corticosteroids, immunosuppressants, and biological agents. However, over time many patients become refractory without treatment alternatives, and in this scenario, hematopoietic stem cell transplantation (HSCT) has emerged as a potential treatment option. The rationale for the use of HSCT for CD is anchored in animal studies and human clinical trials where HSCT could reset a patient's immune system by eliminating disease-causing effector cells and upon immune recovery increase regulatory and suppressive immune cells. Autologous HSCT using a non-myeloablative regimen of cyclophosphamide and anti-thymocyte globulin without CD34+ selection has been to date the most common transplant conditioning regimen adopted. In this review we will address the current situation regarding CD treatment with HSCT and emphasize the medical, ethical, and legal aspects that permeate the procedure in Brazil., Competing Interests: Conflict-of-interest statement: Authors declare no conflict of interests for this article., (©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
31. Health economics and patient outcomes of hematopoietic stem cell transplantation versus disease-modifying therapies for relapsing remitting multiple sclerosis in the United States of America.
- Author
-
Burt RK, Tappenden P, Han X, Quigley K, Arnautovic I, Sharrack B, Snowden JA, and Hartung D
- Subjects
- Cost-Benefit Analysis, Humans, Immunosuppressive Agents, Quality of Life, United States, Hematopoietic Stem Cell Transplantation, Multiple Sclerosis, Multiple Sclerosis, Relapsing-Remitting therapy
- Abstract
Objective: To estimate differences in treatment costs and health outcomes between non-myeloablative hematopoietic stem cell transplantation (HSCT) and disease-modifying therapies (DMTs) for the treatment of relapsing-remitting multiple sclerosis (RRMS)., Methods: We collected data on costs and reimbursements for patients who underwent HSCT for RRMS at Northwestern Memorial Hospital in Chicago (USA) between January 2017 and January 2019. The costs of HSCT were compared against those for DMTs in the United States, obtained from the literature. We also conducted a literature review to interpret the cost comparisons in terms of disease control and patients' wellbeing defined as no evidence of disease activity (NEDA), neurologic disability by the Expanded Disability Status Scale (EDSS), and quality of life by the short form SF-36, respectively., Results: Outside of the data, herein, no other studies on cost of HSCT for RRMS were found in the literature. HSCT mean total costs, based on our own hospital, were $85,184 (range $70,635 to $120,260). Mean revenue collected was $95,268 (range $16,544 to $173,204). In comparison, according to the literature, 2019 DMT costs in the USA ranged from $80,000 to $100,000 per year per patient. Compared to DMTs, studies of HSCT reported greater improvement in no evidence of disease activity, disability, and quality of life., Limitations: Costs of HSCT would be expected to vary by conditioning regimen utilized, patient selection, center experience, and regional variation. No cost data on other HSCT regimens or on the three most recently licensed DMTs, alemtuzumab, ocrelizumab, and cladribine, are available. Randomized trials for cost comparisons are missing and variations in HSCT designs, populations, and methodology preclude more precise cost estimates., Conclusion: Costs of non-myeloablative HSCT after which DMTs are indefinitely discontinued, are approximately the same cost as those for one year of prescription DMTs. Since DMTs assessed in this analysis are given on an ongoing basis, whilst HSCT is not, HSCT is expected to produce long-term cost-savings. When considered alongside the available clinical evidence, which suggests that HSCT may generate more health gains than DMTs, HSCT is likely to represent a cost-effective use of resources. Model-based health economic analyses are required to substantiate this conclusion., Competing Interests: Declaration of Competing Interest None., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
32. Autologous nonmyeloablative hematopoietic stem cell transplantation for neuromyelitis optica.
- Author
-
Burt RK, Balabanov R, Han X, Burns C, Gastala J, Jovanovic B, Helenowski I, Jitprapaikulsan J, Fryer JP, and Pittock SJ
- Subjects
- Adult, Antilymphocyte Serum therapeutic use, Aquaporin 4 immunology, Autoantibodies immunology, Cyclophosphamide therapeutic use, Female, Filgrastim therapeutic use, Hematologic Agents therapeutic use, Hematopoietic Stem Cell Mobilization methods, Humans, Immunologic Factors therapeutic use, Male, Middle Aged, Neuromyelitis Optica immunology, Progression-Free Survival, Recurrence, Rituximab therapeutic use, Salvage Therapy, Transplantation, Autologous, Young Adult, Hematopoietic Stem Cell Transplantation methods, Immunosuppressive Agents therapeutic use, Neuromyelitis Optica therapy
- Abstract
Objective: To determine if autologous nonmyeloablative hematopoietic stem cell transplantation (HSCT) could be a salvage therapy for neuromyelitis optica spectrum disorder (NMOSD)., Methods: Thirteen patients were enrolled in a prospective open-label cohort study (11 NMOSD aquaporin-4-immunoglobulin G [AQP4-IgG]-positive, 1 NMOSD without AQP4, and 1 NMOSD AQP4-IgG-positive with neuropsychiatric systemic lupus erythematosus [SLE]). Following stem cell mobilization with cyclophosphamide (2 g/m
2 ) and filgrastim, patients were treated with cyclophosphamide (200 mg/kg) divided as 50 mg/kg IV on day -5 to day -2, rATG (thymoglobulin) given IV at 0.5 mg/kg on day -5, 1 mg/kg on day -4, and 1.5 mg/kg on days -3, -2, and -1 (total dose 6 mg/kg), and rituximab 500 mg IV on days -6 and +1. Unselected peripheral blood stem cells were infused on day 0. AQP4-IgG antibody status was determined by Clinical Laboratory Improvement Amendments-validated ELISA or flow cytometry assays. Cell-killing activity was measured using a flow cytometry-based complement assay., Results: Median follow-up was 57 months. The patient with coexistent SLE died of complications of active lupus 10 months after HSCT. For the 12 patients with NMOSD without other active coexisting autoimmune diseases, 11 patients are more than 5 years post-transplant, and 80% are relapse-free off all immunosuppression ( p < 0.001). At 1 and 5 years after HSCT, Expanded Disability Status Scale score improved from a baseline mean of 4.4 to 3.3 ( p < 0.01) at 5 years. The Neurologic Rating Scale score improved after HSCT from a baseline mean of 69.5 to 85.7 at 5 years ( p < 0.01). The Short Form-36 health survey for quality of life total score improved from mean 34.2 to 62.1 ( p = 0.001) at 5 years. In the 11 patients whose baseline AQP4-IgG serostatus was positive, 9 patients became seronegative by the immunofluorescence or cell-binding assays available at the time; complement activating and cell-killing ability of patient serum was switched off in 6 of 7 patients with before and after HSCT testing. Two patients remained AQP4-IgG-seropositive (with persistent complement activating and cell-killing ability) and relapsed within 2 years of HSCT. No patient with seronegative conversion relapsed., Conclusion: Prolonged drug-free remission with AQP4-IgG seroconversion to negative following nonmyeloablative autologous HSCT warrants further investigation., (© 2019 American Academy of Neurology.)- Published
- 2019
- Full Text
- View/download PDF
33. Effect of Nonmyeloablative Hematopoietic Stem Cell Transplantation vs Continued Disease-Modifying Therapy on Disease Progression in Patients With Relapsing-Remitting Multiple Sclerosis: A Randomized Clinical Trial.
- Author
-
Burt RK, Balabanov R, Burman J, Sharrack B, Snowden JA, Oliveira MC, Fagius J, Rose J, Nelson F, Barreira AA, Carlson K, Han X, Moraes D, Morgan A, Quigley K, Yaung K, Buckley R, Alldredge C, Clendenan A, Calvario MA, Henry J, Jovanovic B, and Helenowski IB
- Subjects
- Adolescent, Adult, Antilymphocyte Serum therapeutic use, Combined Modality Therapy, Cyclophosphamide therapeutic use, Disease Progression, Female, Humans, Immunologic Factors therapeutic use, Male, Middle Aged, Multiple Sclerosis, Relapsing-Remitting drug therapy, Young Adult, Hematopoietic Stem Cell Transplantation adverse effects, Immunosuppressive Agents therapeutic use, Multiple Sclerosis, Relapsing-Remitting therapy
- Abstract
Importance: Hematopoietic stem cell transplantation (HSCT) represents a potentially useful approach to slow or prevent progressive disability in relapsing-remitting multiple sclerosis (MS)., Objective: To compare the effect of nonmyeloablative HSCT vs disease-modifying therapy (DMT) on disease progression., Design, Setting, and Participants: Between September 20, 2005, and July 7, 2016, a total of 110 patients with relapsing-remitting MS, at least 2 relapses while receiving DMT in the prior year, and an Expanded Disability Status Scale (EDSS; score range, 0-10 [10 = worst neurologic disability]) score of 2.0 to 6.0 were randomized at 4 US, European, and South American centers. Final follow-up occurred in January 2018 and database lock in February 2018., Interventions: Patients were randomized to receive HSCT along with cyclophosphamide (200 mg/kg) and antithymocyte globulin (6 mg/kg) (n = 55) or DMT of higher efficacy or a different class than DMT taken during the previous year (n = 55)., Main Outcomes and Measures: The primary end point was disease progression, defined as an EDSS score increase after at least 1 year of 1.0 point or more (minimal clinically important difference, 0.5) on 2 evaluations 6 months apart, with differences in time to progression estimated as hazard ratios., Results: Among 110 randomized patients (73 [66%] women; mean age, 36 [SD, 8.6] years), 103 remained in the trial, with 98 evaluated at 1 year and 23 evaluated yearly for 5 years (median follow-up, 2 years; mean, 2.8 years). Disease progression occurred in 3 patients in the HSCT group and 34 patients in the DMT group. Median time to progression could not be calculated in the HSCT group because of too few events; it was 24 months (interquartile range, 18-48 months) in the DMT group (hazard ratio, 0.07; 95% CI, 0.02-0.24; P < .001). During the first year, mean EDSS scores decreased (improved) from 3.38 to 2.36 in the HSCT group and increased (worsened) from 3.31 to 3.98 in the DMT group (between-group mean difference, -1.7; 95% CI, -2.03 to -1.29; P < .001). There were no deaths and no patients who received HSCT developed nonhematopoietic grade 4 toxicities (such as myocardial infarction, sepsis, or other disabling or potential life-threatening events)., Conclusions and Relevance: In this preliminary study of patients with relapsing-remitting MS, nonmyeloablative HSCT, compared with DMT, resulted in prolonged time to disease progression. Further research is needed to replicate these findings and to assess long-term outcomes and safety., Trial Registration: ClinicalTrials.gov Identifier: NCT00273364.
- Published
- 2019
- Full Text
- View/download PDF
34. Five year follow-up after autologous peripheral blood hematopoietic stem cell transplantation for refractory, chronic, corticosteroid-dependent systemic lupus erythematosus: effect of conditioning regimen on outcome.
- Author
-
Burt RK, Han X, Gozdziak P, Yaung K, Morgan A, Clendenan AM, Henry J, Calvario MA, Datta SK, Helenowski I, and Schroeder J
- Subjects
- Adult, Chronic Disease, Female, Follow-Up Studies, Humans, Lupus Erythematosus, Systemic pathology, Male, Treatment Outcome, Hematopoietic Stem Cell Transplantation methods, Lupus Erythematosus, Systemic therapy, Peripheral Blood Stem Cell Transplantation methods, Transplantation Conditioning methods
- Abstract
Some patients with systemic lupus erythematosus (SLE) are refractory to traditional therapies, dependent on chronic corticosteroids, have organ damage, and are at high risk of mortality. In this group of patients, we report outcome at a median of five years after autologous hematopoietic stem cell transplant (HSCT) using two different non-myeloablative regimens. Four patients received a conditioning regimen of cyclophosphamide (200 mg/kg) and alemtuzumab (60 mg), while 26 patients underwent conditioning with cyclophosphamide (200 mg/kg), rATG (Thymoglobulin) (5.5 mg/kg), and rituximab 1000 mg. Unselected peripheral blood stem cells were infused on day 0. There were no treatment related deaths. Of the four patients treated with cyclophosphamide and alemtuzumab, none entered remission. For the 26 patients treated with cyclophosphamide, rATG, and rituximab, disease remission defined as no immune suppressive drugs except hydroxychloroquine and/or 10 mg or less of prednisone a day was 92% at 6 months, 92% at one year, 81% at 2 years, 71% at 3 years, and 62% at 4 and 5 years post-HSCT. Autologous HSCT outcome is dependent on the conditioning regimen but prior organ damage may cause lingering symptoms.
- Published
- 2018
- Full Text
- View/download PDF
35. Systemic sclerosis: Autologous HSCT is efficacious, but can we make it safer?
- Author
-
Burt RK and Farge D
- Subjects
- Humans, Transplantation, Autologous, Hematopoietic Stem Cell Transplantation, Scleroderma, Systemic
- Published
- 2018
- Full Text
- View/download PDF
36. Blogs cannot separate wheat from chaff.
- Author
-
Burt RK, Snowden JA, Burman J, Oliveira MC, and Sharrack B
- Subjects
- Blogging, Triticum
- Published
- 2017
- Full Text
- View/download PDF
37. Cardiopulmonary assessment of patients with systemic sclerosis for hematopoietic stem cell transplantation: recommendations from the European Society for Blood and Marrow Transplantation Autoimmune Diseases Working Party and collaborating partners.
- Author
-
Farge D, Burt RK, Oliveira MC, Mousseaux E, Rovira M, Marjanovic Z, de Vries-Bouwstra J, Del Papa N, Saccardi R, Shah SJ, Lee DC, Denton C, Alexander T, Kiely DG, and Snowden JA
- Subjects
- Heart Diseases complications, Heart Diseases diagnostic imaging, Humans, Scleroderma, Systemic complications, Scleroderma, Systemic mortality, Heart Diseases diagnosis, Hematopoietic Stem Cell Transplantation mortality, Scleroderma, Systemic therapy
- Abstract
Systemic sclerosis (SSc) is a rare disabling autoimmune disease with a similar mortality to many cancers. Two randomized controlled trials of autologous hematopoietic stem cell transplantation (AHSCT) for SSc have shown significant improvement in organ function, quality of life and long-term survival compared to standard therapy. However, transplant-related mortality (TRM) ranged from 3-10% in patients undergoing HSCT. In SSc, the main cause of non-transplant and TRM is cardiac related. We therefore updated the previously published guidelines for cardiac evaluation, which should be performed in dedicated centers with expertize in HSCT for SSc. The current recommendations are based on pre-transplant cardiopulmonary evaluations combining pulmonary function tests, echocardiography, cardiac magnetic resonance imaging and invasive hemodynamic testing, initiated at Northwestern University (Chicago) and subsequently discussed and endorsed within the EBMT ADWP in 2016.
- Published
- 2017
- Full Text
- View/download PDF
38. Low toxicity and favorable clinical and quality of life impact after non-myeloablative autologous hematopoietic stem cell transplant in Crohn's disease.
- Author
-
Ruiz MA, Kaiser RL Jr, de Quadros LG, Piron-Ruiz L, Peña-Arciniegas T, Faria MAG, Siqueira RC, Pirozzi FF, Kaiser FSL, and Burt RK
- Subjects
- Adult, Crohn Disease complications, Female, Humans, Male, Middle Aged, Transplantation, Autologous, Young Adult, Crohn Disease therapy, Hematopoietic Stem Cell Transplantation adverse effects, Quality of Life
- Abstract
Objective: The incidence of adverse events in myeloablative transplant protocols is high in refractory Crohn's disease; this study used low doses of cyclophosphamide. Fourteen patients were submitted to non-myeloablative autologous hematopoietic stem cell transplantation., Results: The average number of days of anemia (hemoglobin < 10 g/dL) was 5.4 ± 4.2 and 14 ± 2.4 in the mobilization and conditioning phases, respectively. The mean number of days of neutropenia (neutrophils < 0.5 × 10
9 /L) in the mobilization phase was 1.7 ± 1.5 while it was 7.6 ± 1.4 in the conditioning phase. When comparing the conditioning and mobilization phases, there was an increased number days of leukopenia (white blood cells < 1.0 × 109 /L), lymphocytopenia (lymphocytes < 0.5 × 109 /L) and thrombocytopenia (platelets < 25 × 109 /L). Crohn's Disease Activity Index values before the transplant ranged from 155 to 450.5 (mean 281.2 ± 79.0) and at 30 days after the procedures they ranged from 45.4 to 177 (mean 95.8 ± 35.4). Moreover, the procedure improved in overall quality of life of patients. Non-myeloablative autologous hematopoietic stem cell transplantation with lower doses of cyclophosphamide leads to lower rates of hematological toxicity and adverse events compared to protocols described in the literature. Trial registration NCT 03000296: Date 9 December 2016.- Published
- 2017
- Full Text
- View/download PDF
39. Stem-cell transplantation for Crohn's disease: same authors, different conclusions?
- Author
-
Burt RK, Kaiser RL Jr, and Ruiz MA
- Subjects
- Humans, Transplantation, Autologous, Crohn Disease, Stem Cell Transplantation
- Published
- 2017
- Full Text
- View/download PDF
40. Immunological Balance Is Associated with Clinical Outcome after Autologous Hematopoietic Stem Cell Transplantation in Type 1 Diabetes.
- Author
-
Malmegrim KC, de Azevedo JT, Arruda LC, Abreu JR, Couri CE, de Oliveira GL, Palma PV, Scortegagna GT, Stracieri AB, Moraes DA, Dias JB, Pieroni F, Cunha R, Guilherme L, Santos NM, Foss MC, Covas DT, Burt RK, Simões BP, Voltarelli JC, Roep BO, and Oliveira MC
- Abstract
Autologous hematopoietic stem cell transplantation (AHSCT) increases C-peptide levels and induces insulin independence in patients with type 1 diabetes. This study aimed to investigate how clinical outcomes may associate with the immunological status, especially concerning the balance between immunoregulation and autoreactivity. Twenty-one type 1 diabetes patients were monitored after AHSCT and assessed every 6 months for duration of insulin independence, C-peptide levels, frequencies of islet-specific autoreactive CD8
+ T cells (CTL), regulatory lymphocyte subsets, thymic function, and T-cell repertoire diversity. In median follow-up of 78 (range 15-106) months, all patients became insulin-independent, resuming insulin after median of 43 (range 6-100) months. Patients were retrospectively divided into short- or prolonged-remission groups, according to duration of insulin independence. For the entire follow-up, CD3+ CD4+ T-cell numbers remained lower than baseline in both groups, whereas CD3+ CD8+ T-cell levels did not change, resulting in a CD4/CD8 ratio inversion. Memory CTL comprehended most of T cells detected on long-term follow-up of patients after AHSCT. B cells reconstituted to baseline levels at 2-3 months post-AHSCT in both patient groups. In the prolonged-remission-group, baseline islet-specific T-cell autoreactivity persisted after transplantation, but regulatory T cell counts increased. Patients with lower frequencies of autoreactive islet-specific T cells remained insulin-free longer and presented greater C-peptide levels than those with lower frequencies of these cells. Therefore, immune monitoring identified a subgroup of patients with superior clinical outcome of AHSCT. Our study shows that improved immunoregulation may balance autoreactivity endorsing better metabolic outcomes in patients with lower frequencies of islet-specific T cells. Development of new strategies of AHSCT is necessary to increase frequency and function of T and B regulatory cells and decrease efficiently autoreactive islet-specific T and B memory cells in type 1 diabetes patients undergoing transplantation.- Published
- 2017
- Full Text
- View/download PDF
41. Stem Cell Transplantation for Refractory Crohn Disease.
- Author
-
Burt RK, Ruiz MA, and Kaiser RL Jr
- Subjects
- Female, Humans, Male, Crohn Disease therapy, Hematopoietic Stem Cell Mobilization, Hematopoietic Stem Cell Transplantation methods
- Published
- 2016
- Full Text
- View/download PDF
42. Association of nonmyeloablative hematopoietic stem cell transplantation with neurological disability in patients with relapsing-remitting multiple sclerosis.
- Author
-
Burt RK, Balabanov R, Han X, Sharrack B, Morgan A, Quigley K, Yaung K, Helenowski IB, Jovanovic B, Spahovic D, Arnautovic I, Lee DC, Benefield BC, Futterer S, Oliveira MC, and Burman J
- Subjects
- Adolescent, Adult, Alemtuzumab, Antibodies, Monoclonal, Humanized therapeutic use, Antilymphocyte Serum therapeutic use, Cyclophosphamide therapeutic use, Disease Progression, Female, Follow-Up Studies, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Multiple Sclerosis, Relapsing-Remitting classification, Multiple Sclerosis, Relapsing-Remitting pathology, Outcome Assessment, Health Care, Transplantation Conditioning, Young Adult, Brain pathology, Disability Evaluation, Hematopoietic Stem Cell Transplantation adverse effects, Multiple Sclerosis, Relapsing-Remitting therapy
- Abstract
Importance: No current therapy for relapsing-remitting multiple sclerosis (MS) results in significant reversal of disability., Objective: To determine the association of nonmyeloablative hematopoietic stem cell transplantation with neurological disability and other clinical outcomes in patients with MS., Design, Setting, and Participants: Case series of patients with relapsing-remitting MS (n = 123) or secondary-progressive MS (n = 28) (mean age, 36 years; range, 18-60 years; 85 women) treated at a single US institution between 2003 and 2014 and followed up for 5 years. Final follow-up was completed in June 2014., Interventions: Treatment with cyclophosphamide and alemtuzumab (22 patients) or cyclophosphamide and thymoglobulin (129 patients) followed by infusion of unmanipulated peripheral blood stem cells., Main Outcomes and Measures: Primary end point was reversal or progression of disability measured by change in the Expanded Disability Status Scale (EDSS) score of 1.0 or greater (score range, 0-10). Secondary outcomes included changes in the Neurologic Rating Scale (NRS) score of 10 or greater (score range, 0-100), Multiple Sclerosis Functional Composite (MSFC) score, quality-of-life Short Form 36 questionnaire scores, and T2 lesion volume on brain magnetic resonance imaging scan., Results: Outcome analysis was available for 145 patients with a median follow-up of 2 years and a mean of 2.5 years. Scores from the EDSS improved significantly from a pretransplant median of 4.0 to 3.0 (interquartile range [IQR], 1.5 to 4.0; n = 82) at 2 years and to 2.5 (IQR, 1.9 to 4.5; n = 36) at 4 years (P < .001 at each assessment). There was significant improvement in disability (decrease in EDSS score of ≥1.0) in 41 patients (50%; 95% CI, 39% to 61%) at 2 years and in 23 patients (64%; 95% CI, 46% to 79%) at 4 years. Four-year relapse-free survival was 80% and progression-free survival was 87%. The NRS scores improved significantly from a pretransplant median of 74 to 88.0 (IQR, 77.3 to 93.0; n = 78) at 2 years and to 87.5 (IQR, 75.0 to 93.8; n = 34) at 4 years (P < .001 at each assessment). The median MSFC scores were 0.38 (IQR, -0.01 to 0.64) at 2 years (P < .001) and 0.45 (0.04 to 0.60) at 4 years (P = .02). Total quality-of-life scores improved from a mean of 46 (95% CI, 43 to 49) pretransplant to 64 (95% CI, 61 to 68) at a median follow-up of 2 years posttransplant (n = 132) (P < .001). There was a decrease in T2 lesion volume from a pretransplant median of 8.57 cm3 (IQR, 2.78 to 22.08 cm3) to 5.74 cm3 (IQR, 1.88 to 14.45 cm3) (P < .001) at the last posttransplant assessment (mean follow-up, 27 months; n = 128)., Conclusions and Relevance: Among patients with relapsing-remitting MS, nonmyeloablative hematopoietic stem cell transplantation was associated with improvement in neurological disability and other clinical outcomes. These preliminary findings from this uncontrolled study require confirmation in randomized trials.
- Published
- 2015
- Full Text
- View/download PDF
43. Autologous haematopoietic stem cell transplantation reduces abnormalities in the expression of immune genes in multiple sclerosis.
- Author
-
de Paula A Sousa A, Malmegrim KC, Panepucci RA, Brum DS, Barreira AA, Carlos Dos Santos A, Araújo AG, Covas DT, Oliveira MC, Moraes DA, Pieroni F, Barros GM, Simões BP, Nicholas R, Burt RK, Voltarelli JC, and Muraro PA
- Subjects
- Adaptive Immunity genetics, Adult, CD4-Positive T-Lymphocytes, Female, Gene Expression Profiling, Gene Expression Regulation, Humans, Male, Middle Aged, Multiple Sclerosis genetics, Multiple Sclerosis immunology, Hematopoietic Stem Cell Transplantation, Multiple Sclerosis therapy
- Abstract
Autologous haematopoietic stem-cell transplantation (AHSCT) has been experimented as a treatment in patients affected by severe forms of multiple sclerosis (MS) who failed to respond to standard immunotherapy. The rationale of AHSCT is to 'reboot' the immune system and reconstitute a new adaptive immunity. The aim of our study was to identify, through a robust and unbiased transcriptomic analysis, any changes of gene expression in T-cells potentially underlying the treatment effect in patients who underwent non-myeloablative AHSCT for treatment of MS. We evaluated by microarray DNA-chip technology the gene expression of peripheral CD4+ and CD8+ T-cell subsets sorted from patients with MS patients before AHSCT, at 6 months, 1 year and 2 years after AHSCT and from healthy control subjects. Hierarchical clustering analysis revealed that reconstituted CD8+ T-cells of MS patients at 2 years post-transplantation, aggregated together with healthy controls, suggesting a normalization of gene expression in CD8+ cells post-therapy. When we compared the gene expression in MS patients before and after therapy, we detected a large number of differentially expressed genes (DEG) in both CD8+ and CD4+ T-cell subsets at all time points after transplantation. We catalogued the biological function of DEG and we selected 27 genes known to be involved in immune function for accurate quantification of gene expression by real-time PCR. The analysis confirmed and extended with quantitative data, a number of significant changes in both the CD4+ and CD8+ T-cells subsets from MS post-transplant. Notably, CD8+ T-cells revealed more extensive changes in the expression of genes involved in effector immune responses.
- Published
- 2015
- Full Text
- View/download PDF
44. Cardiac assessment before stem cell transplantation for systemic sclerosis.
- Author
-
Burt RK, Oliveira MC, and Shah SJ
- Subjects
- Female, Humans, Male, Cyclophosphamide administration & dosage, Hematopoietic Stem Cell Transplantation, Immunosuppressive Agents administration & dosage, Scleroderma, Diffuse drug therapy
- Published
- 2014
- Full Text
- View/download PDF
45. Major pathogenic steps in human lupus can be effectively suppressed by nucleosomal histone peptide epitope-induced regulatory immunity.
- Author
-
Zhang L, Bertucci AM, Ramsey-Goldman R, Harsha-Strong ER, Burt RK, and Datta SK
- Subjects
- Adult, Anti-Inflammatory Agents pharmacology, Antigens, CD genetics, Antigens, CD immunology, Autoantibodies biosynthesis, CD8-Positive T-Lymphocytes immunology, CD8-Positive T-Lymphocytes pathology, Epitopes, Female, Forkhead Transcription Factors genetics, Forkhead Transcription Factors immunology, Gene Expression Regulation, Histones chemistry, Humans, Lupus Erythematosus, Systemic genetics, Lupus Erythematosus, Systemic pathology, Lymphocyte Activation, Male, Middle Aged, Nucleosomes chemistry, Nucleosomes immunology, Peptides immunology, Primary Cell Culture, Protein Serine-Threonine Kinases genetics, Protein Serine-Threonine Kinases immunology, Receptor, Transforming Growth Factor-beta Type I, Receptors, Transforming Growth Factor beta genetics, Receptors, Transforming Growth Factor beta immunology, Signal Transduction, Smad2 Protein genetics, Smad2 Protein immunology, Smad3 Protein genetics, Smad3 Protein immunology, T-Lymphocytes, Regulatory immunology, T-Lymphocytes, Regulatory pathology, Transforming Growth Factor beta genetics, Transforming Growth Factor beta immunology, Autoimmunity drug effects, CD8-Positive T-Lymphocytes drug effects, Histones immunology, Lupus Erythematosus, Systemic immunology, Peptides pharmacology, T-Lymphocytes, Regulatory drug effects
- Abstract
Low-dose tolerance therapy with nucleosomal histone peptide epitopes blocks lupus disease in mouse models, but effect in humans is unknown. Herein, we found that CD4(+)CD25(high)FoxP3(+) or CD4(+)CD45RA(+)FoxP3(low) T-cells, and CD8(+)CD25(+)FoxP3(+) T-cells were all induced durably in PBMCs from inactive lupus patients and healthy subjects by the histone peptide/s themselves, but in active lupus, dexamethasone or hydroxychloroquine unmasked Treg-induction by the peptides. The peptide-induced Treg depended on TGFβ/ALK-5/pSmad 2/3 signaling, and they expressed TGF-β precursor LAP. Lupus patients' sera did not inhibit Treg induction. The peptide epitope-induced T cells markedly suppressed type I IFN related gene expression in lupus PBMC. Finally, the peptide epitopes suppressed pathogenic autoantibody production by PBMC from active lupus patients to baseline levels by additional mechanisms besides Treg induction, and as potently as anti-IL6 antibody. Thus, low-dose histone peptide epitopes block pathogenic autoimmune response in human lupus by multiple mechanisms to restore a stable immunoregulatory state., (© 2013.)
- Published
- 2013
- Full Text
- View/download PDF
46. Non-myeloablative autologous haematopoietic stem cell transplantation expands regulatory cells and depletes IL-17 producing mucosal-associated invariant T cells in multiple sclerosis.
- Author
-
Abrahamsson SV, Angelini DF, Dubinsky AN, Morel E, Oh U, Jones JL, Carassiti D, Reynolds R, Salvetti M, Calabresi PA, Coles AJ, Battistini L, Martin R, Burt RK, and Muraro PA
- Subjects
- Adult, Analysis of Variance, Brain metabolism, Brain pathology, Cyclophosphamide therapeutic use, Cytokines metabolism, Female, Flow Cytometry, Granzymes metabolism, Humans, Immunosuppressive Agents therapeutic use, Ki-67 Antigen metabolism, Longitudinal Studies, Lymphocyte Count, Male, Middle Aged, Mucous Membrane metabolism, Mucous Membrane pathology, Multiple Sclerosis drug therapy, Perforin metabolism, Receptors, Antigen, T-Cell metabolism, T-Lymphocytes, Regulatory classification, Young Adult, Hematopoietic Stem Cell Transplantation methods, Interleukin-17 metabolism, Multiple Sclerosis pathology, Multiple Sclerosis surgery, T-Lymphocytes, Regulatory immunology
- Abstract
Autologous haematopoietic stem cell transplantation has been tried as one experimental strategy for the treatment of patients with aggressive multiple sclerosis refractory to other immunotherapies. The procedure is aimed at ablating and repopulating the immune repertoire by sequentially mobilizing and harvesting haematopoietic stem cells, administering an immunosuppressive conditioning regimen, and re-infusing the autologous haematopoietic cell product. 'Non-myeloablative' conditioning regimens to achieve lymphocytic ablation without marrow suppression have been proposed to improve safety and tolerability. One trial with non-myeloablative autologous haematopoietic stem cell transplantation reported clinical improvement and inflammatory stabilization in treated patients with highly active multiple sclerosis. The aim of the present study was to understand the changes in the reconstituted immune repertoire bearing potential relevance to its mode of action. Peripheral blood was obtained from 12 patients with multiple sclerosis participating in the aforementioned trial and longitudinally followed for 2 years. We examined the phenotype and function of peripheral blood lymphocytes by cell surface or intracellular staining and multi-colour fluorescence activated cell sorting alone or in combination with proliferation assays. During immune reconstitution post-transplantation we observed significant though transient increases in the proportion of CD4+ FoxP3+ T cells and CD56(high) natural killer cell subsets, which are cell subsets associated with immunoregulatory function. CD8+ CD57+ cytotoxic T cells were persistently increased after therapy and were able to suppress CD4+ T cell proliferation with variable potency. In contrast, a CD161(high) proinflammatory CD8+ T cell subset was depleted at all time-points post-transplantation. Phenotypic characterization revealed that the CD161(high)CD8+ T cells were mucosal-associated invariant T cells, a novel cell population originating in the gut mucosa but expressing the central nervous system-homing receptor CCR6. Detection of mucosal-associated invariant T cells in post-mortem multiple sclerosis brain white matter active lesions confirmed their involvement in the disease pathology. Intracellular cytokine staining demonstrated interferon γ and interleukin 17 production and lack of interleukin 10 production, a pro-inflammatory profile. Mucosal-associated invariant T cell frequency did not change in patients treated with interferon β; and was more depleted after autologous haematopoietic stem cell transplantation than in patients who had received high-dose cyclophosphamide (n = 7) or alemtuzumab (n = 21) treatment alone, suggesting an additive or synergistic effect of the conditioning regime components. We propose that a favourably modified balance of regulatory and pro-inflammatory lymphocytes underlies the suppression of central nervous system inflammation in patients with multiple sclerosis following non-myeloablative autologous haematopoietic stem cell transplantation with a conditioning regimen consisting of cyclophosphamide and alemtuzumab.
- Published
- 2013
- Full Text
- View/download PDF
47. Remission of Crohn's disease after cord blood transplantation for leukocyte adhesion deficiency type 1.
- Author
-
Jain S, Gozdziak P, Morgan A, and Burt RK
- Subjects
- Adult, Allografts, CD18 Antigens genetics, CD18 Antigens immunology, Cord Blood Stem Cell Transplantation, Crohn Disease complications, Crohn Disease genetics, Crohn Disease immunology, Humans, Leukocyte-Adhesion Deficiency Syndrome complications, Leukocyte-Adhesion Deficiency Syndrome genetics, Leukocyte-Adhesion Deficiency Syndrome immunology, Male, Remission Induction, Crohn Disease therapy, Leukocyte-Adhesion Deficiency Syndrome therapy
- Published
- 2013
- Full Text
- View/download PDF
48. Autologous HSCT for systemic sclerosis - Authors' reply.
- Author
-
Burt RK, Shah SJ, Schroeder J, Oliveira MC, Moraes DA, Simoes B, Marjanovic Z, and Farge D
- Subjects
- Female, Humans, Male, Cause of Death, Heart Failure mortality, Hematopoietic Stem Cell Transplantation methods, Hematopoietic Stem Cell Transplantation mortality, Pericarditis, Constrictive mortality, Peripheral Blood Stem Cell Transplantation methods, Peripheral Blood Stem Cell Transplantation mortality, Scleroderma, Diffuse mortality, Scleroderma, Diffuse therapy, Scleroderma, Limited mortality, Scleroderma, Limited therapy, Sepsis mortality, Transplantation Conditioning
- Published
- 2013
- Full Text
- View/download PDF
49. Cardiac involvement and treatment-related mortality after non-myeloablative haemopoietic stem-cell transplantation with unselected autologous peripheral blood for patients with systemic sclerosis: a retrospective analysis.
- Author
-
Burt RK, Oliveira MC, Shah SJ, Moraes DA, Simoes B, Gheorghiade M, Schroeder J, Ruderman E, Farge D, Chai ZJ, Marjanovic Z, Jain S, Morgan A, Milanetti F, Han X, Jovanovic B, Helenowski IB, and Voltarelli J
- Subjects
- Adolescent, Adult, Aged, Compassionate Use Trials, Female, Follow-Up Studies, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Pulmonary Diffusing Capacity physiology, Retrospective Studies, Scleroderma, Diffuse physiopathology, Scleroderma, Limited physiopathology, Total Lung Capacity, Transplantation, Autologous, Vital Capacity physiology, Young Adult, Cause of Death, Heart Failure mortality, Hematopoietic Stem Cell Transplantation methods, Hematopoietic Stem Cell Transplantation mortality, Pericarditis, Constrictive mortality, Peripheral Blood Stem Cell Transplantation methods, Peripheral Blood Stem Cell Transplantation mortality, Scleroderma, Diffuse mortality, Scleroderma, Diffuse therapy, Scleroderma, Limited mortality, Scleroderma, Limited therapy, Sepsis mortality, Transplantation Conditioning
- Abstract
Background: Autologous haemopoietic stem-cell transplantation (HSCT) benefits patients with systemic sclerosis but has been associated with significant treatment-related mortality and failure to improve diffusion capacity of carbon monoxide (DLCO). We aimed to assess efficacy of HSCT and use of rigorous cardiac screening in this group., Methods: We assessed patients with diffuse systemic sclerosis or limited systemic sclerosis and interstitial lung disease who were treated with HSCT as part of a study or on a compassionate basis at Northwestern University (Chicago, IL, USA) or the University of São Paulo (Ribeirão Preto, Brazil). Unselected peripheral blood stem cells were harvested with cyclophosphamide (2 g/m(2)) and filgrastim. The transplant regimen was a non-myeloablative regimen of cyclophosphamide (200 mg/kg) and rabbit anti-thymocyte globulin (rATG; 4·5-6·5 mg/kg). We followed patients up to 5 years for overall survival, relapse-free survival, modified Rodnan skin score, and pulmonary function tests., Findings: Five (6%) of 90 patients died from treatment-related causes. Despite standard guidelines that recommend echocardiogram for screening before transplantation, four treatment-related deaths occurred because of cardiovascular complications (one constrictive pericarditis, two right heart failures without underlying infection, and one heart failure during mobilisation), and one death was secondary to sepsis without documented underlying heart disease. Kaplan-Meier analysis showed survival was 78% at 5 years (after eight relapse-related deaths) and relapse-free survival was 70% at 5 years. Compared with baseline, we noted improvements after HSCT in modified Rodnan skin scores at 1 year (58 patients; p<0·0001), 2 years (42 patients; p<0·0001), and 3 years (27 patients; p<0·0001) and forced vital capacity at 1 year (58 patients; p=0·009), 2 years (40 patients; p=0·02), and 3 years (28 patients; p=0·004), but total lung capacity and DLCO were not improved significantly after HSCT. Overall mean DLCO was significantly improved in patients with normal baseline echocardiograms (p=0·005) or electrocardiographs (p=0·05)., Interpretation: Autologous HSCT with a non-myeloablative regimen of cyclophosphamide and rATG with a non-selected autograft results in sustained improvement in skin thickness and forced vital capacity. DLCO is affected by baseline cardiac function. Guidelines for cardiac screening of patients with systemic sclerosis to assess treatment-related risk from pulmonary artery hypertension, primary cardiac involvement, or pericardial disease should be reconsidered and updated., Funding: None., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
- Published
- 2013
- Full Text
- View/download PDF
50. MOVING TOWARDS A DETENTE IN THE STEM CELL DEBATE.
- Author
-
Burt RK, Anversa P, and Ricordi C
- Published
- 2013
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.