32 results on '"Mandrik Olena"'
Search Results
2. Cost comparison of treating chronic hepatitis C genotype one with pegylated interferons in Ukraine
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Mandrik Olena, Knies Saskia, Golubovska Оlha, Duda Oleksandr, Dudar Larisa, Fedorchenko Sergiy, Zaliska Оlha, and Severens J. L. (Hans)
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cost minimization ,pegylated interferon ,chronic hepatitis c ,ukraine ,Medicine - Abstract
Based on the pivotal trial showing no clinicallyrelevant differences between pegylated interferon α-2b (Peg-α-2b) and α-2a (Peg-α-2a) combined with ribavirin for treatment of chronic hepatitis C virus (HCV) genotype 1 infection in Ukraine, a cost-minimization analysis was performed using a 1 year time horizon and both a health care and patients’ perspective. A decision tree reflects treatment pathways. Drug costs were based on drug labeling and adjusted to the average body mass in Ukraine. Subgroup analysis was applied to deal with heterogeneity of patient’s weight causing dose changes. A break-even price of Peg-α-2a and Peg-α-2b (based on the average dose) was calculated. Univariate sensitivity analyses and probabilistic sensitivity analysis were carried out to reflect decision uncertainty. For an average body weight, total medical costs per patient differ from US$9220 for Peg-α-2b to US$9513 for Peg-α-2a from a health care perspective, and from US$15,212 to US$15,696 from a patients’ perspective. Sensitivity analyses show these results are robust. With average body weight, the break-even price of Peg-α-2b may be 7.3% higher than Peg-α-2a to have similar total costs.
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- 2015
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3. The effectiveness and value of belimumab and voclosporin for lupus nephritis.
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Mandrik, Olena, Thokala, Praveen, Fotheringham, James, Pearson, Steven, and Tice, Jeffrey
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Antibodies ,Monoclonal ,Humanized ,Cost-Benefit Analysis ,Cyclosporine ,Humans ,Immunosuppressive Agents ,Lupus Nephritis ,Models ,Economic - Abstract
DISCLOSURES: Funding for this summary was contributed by Arnold Ventures, California Health Care Foundation, The Donaghue Foundation, Harvard Pilgrim Health Care, and Kaiser Foundation Health Plan to the Institute for Clinical and Economic Review (ICER), an independent organization that evaluates the evidence on the value of health care interventions. ICERs annual policy summit is supported by dues from AbbVie, Aetna, Americas Health Insurance Plans, Anthem, Alnylam, AstraZeneca, Biogen, Blue Shield of CA, Boehringer-Ingelheim, Cambia Health Services, CVS, Editas, Evolve Pharmacy, Express Scripts, Genentech/Roche, GlaxoSmithKline, Harvard Pilgrim, Health Care Service Corporation, HealthFirst, Health Partners, Humana, Johnson & Johnson (Janssen), Kaiser Permanente, LEO Pharma, Mallinckrodt, Merck, Novartis, National Pharmaceutical Council, Pfizer, Premera, Prime Therapeutics, Regeneron, Sanofi, Spark Therapeutics, uniQure, and United Healthcare. Pearson is employed by ICER. Through their affiliated institutions, Tice, Mandrik, Thokala, and Fotheringham received funding from ICER for the work described in this summary.
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- 2021
4. Critical Appraisal of Decision Models Used for the Economic Evaluation of Bladder Cancer Screening and Diagnosis: A Systematic Review
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Mandrik, Olena, Hahn, Anne I., Catto, James W. F., Zauber, Ann G., Cumberbatch, Marcus, and Chilcott, James
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- 2023
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5. Effectiveness of screening for oral cancer and oral potentially malignant disorders (OPMD): A systematic review
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Parak, Uzayr, Lopes Carvalho, Andre, Roitberg, Felipe, and Mandrik, Olena
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- 2022
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6. Modelling cost-effective strategies for minimising socioeconomic inequalities in colorectal cancer screening outcomes in England
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Thomas, Chloe, Mandrik, Olena, and Whyte, Sophie
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- 2022
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7. Modelling the impact of the coronavirus pandemic on bowel cancer screening outcomes in England: A decision analysis to prepare for future screening disruption
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Mandrik, Olena, Chilcott, James, and Thomas, Chloe
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- 2022
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8. Calibrating Natural History of Cancer Models in the Presence of Data Incompatibility: Problems and Solutions
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Mandrik, Olena, Thomas, Chloe, Whyte, Sophie, and Chilcott, James
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- 2022
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9. Critical Appraisal of Systematic Reviews With Costs and Cost-Effectiveness Outcomes: An ISPOR Good Practices Task Force Report
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Mandrik, Olena (Lena), Severens, J.L. (Hans), Bardach, Ariel, Ghabri, Salah, Hamel, Candyce, Mathes, Tim, Vale, Luke, Wisløff, Torbjørn, and Goldhaber-Fiebert, Jeremy D.
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- 2021
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10. Cognitions and behaviours of general practitioners in France regarding HPV vaccination: A theory-based systematic review
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Escriva-Boulley, Géraldine, Mandrik, Olena, Préau, Marie, Herrero, Rolando, and Villain, Patricia
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- 2021
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11. Cost for Treatment of Chronic Lymphocytic Leukemia in Specialized Institutions of Ukraine
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Mandrik, Olena, Corro Ramos, Isaac, Zalis’ka, Olga, Gaisenko, Andriy, and Severens, Johan L.
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- 2013
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12. Diagnosis, treatment and survival from bladder, upper urinary tract, and urethral cancers: real-world findings from NHS England between 2013 and 2019.
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Catto, James W. F., Mandrik, Olena, Quayle, Lewis A., Hussain, Syed A., McGrath, John, Cresswell, Joanne, Birtle, Alison J., Jones, Rob J., Mariappan, Paramananthan, Makaroff, Lydia E., Knight, Allen, Mostafid, Hugh, Chilcott, Jim, Sasieni, Peter, and Cumberbatch, Marcus
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URETHRAL cancer , *URINARY organs , *BLADDER cancer , *HOSPITAL statistics , *DIAGNOSIS , *BLADDER - Abstract
Objective We report NHS England data for patients with bladder cancer (BC), upper tract urothelial cancer (UTUC: renal pelvic and ureteric), and urethral cancers from 2013 to 2019. Materials and Methods Hospital episode statistics, waiting times, and cancer registrations were extracted from NHS Digital. Results Registrations included 128 823 individuals with BC, 16 018 with UTUC, and 2533 with urethral cancer. In 2019, 150 816 persons were living with a diagnosis of BC, of whom 113 067 (75.0%) were men, 85 117 (56.5%) were aged >75 years, and 95 553 (91.7%) were Caucasian. Incidence rates were stable (32.7-34.3 for BC, 3.9-4.2 for UTUC and 0.6-0.7 for urethral cancer per 100 000 population). Most patients 52 097 (mean [range] 41.3% [40.7-42.0%]) were referred outside the 2-weekwait pathway and 15 340 (mean [range] 12.2% [11.7-12.6%]) presented as emergencies. Surgery, radiotherapy, chemotherapy, or multimodal treatment use varied with disease stage, patient factors and Cancer Alliance. Between 27% and 29% (n = 6616) of muscle-invasive BCs did not receive radical treatment. Survival rates reflected stage, grade, location, and tumour histology. Overall survival rates did not improve over time (relative change: 0.97, 95% confidence interval 0.97-0.97) at 2 years in contrast to other cancers. Conclusion The diagnostic pathway for BC needs improvement. Increases in survival might be delivered through greater use of radical treatment. NHS Digital data offers a population-wide picture of this disease but does not allow individual outcomes to be matched with disease or patient features and key parameters can be missing or incomplete. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Cost-Effectiveness of BRCA 1/2 Genetic Test and Preventive Strategies: Using Real-World Data From an Upper-Middle Income Country.
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Lourenção, Marina, Corrêa Galendi, Julia Simões, Reis Galvão, Henrique De Campos, Perazzolo Antoniazzi, Augusto, Silveira Grase, Rebeca, Carvalho, André, Carvalho Mauad, Edmundo, Caldeira de Oliveira, Jorge Henrique, Reis, Rui Manuel, Mandrik, Olena, and Inêz Palmero, Edenir
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GENETIC testing ,BRCA genes ,QUALITY-adjusted life years ,COST effectiveness ,CANCER prevention ,SOMATIC mutation - Abstract
Although BRCA1/2 genetic testing in developed countries is part of the reality for high-risk patients for hereditary breast and ovarian cancer (HBOC), the same is not true for uppermiddle- income countries. For that reason, this study aimed to evaluate whether the BRCA1/2 genetic test and preventive strategies for women at high risk for HBOC are costeffective compared to not performing these strategies in an upper-middle-income country. Adopting a payer perspective, a Markov model with a time horizon of 70 years was built to delineate the health states for a cohort of healthy women aged 30 years that fulfilled the BRCA1/2 testing criteria according to the guidelines. Transition probabilities were calculated based on real-world data of women tested for BRCA1/2 germline mutations in a cancer reference hospital from 2011 to 2020. We analyzed 275 BRCA mutated index cases and 356 BRCA mutation carriers that were first- or second-degree relatives of the patients. Costs were based on the Brazilian public health system reimbursement values. Health state utilities were retrieved from literature. The BRCA1/2 genetic test and preventive strategies result in more quality-adjusted life years (QALYs) and costs with an incremental cost-effectiveness ratio of R$ 11,900.31 (U$ 5,504.31)/QALY. This result can represent a strong argument in favor of implementing genetic testing strategies for high-risk women even in countries with upper-middle income, considering not only the cancer prevention possibilities associated with the genetic testing but also its costeffectiveness to the health system. These strategies are cost-effective, considering a willingness-to-pay threshold of R$ 25,000 (U$ 11,563.37)/QALY, indicating that the government should consider offering them for women at high risk for HBOC. The results were robust in deterministic and probabilistic sensitivity analyses. [ABSTRACT FROM AUTHOR]
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- 2022
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14. Cost-Effectiveness of AI for Risk-Stratified Breast Cancer Screening.
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Hill, Harry, Roadevin, Cristina, Duffy, Stephen, Mandrik, Olena, and Brentnall, Adam
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- 2024
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15. Should colorectal cancer screening start at different ages for men and women? Cost‐effectiveness analysis for a resource‐constrained service.
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Thomas, Chloe, Mandrik, Olena, Whyte, Sophie, Saunders, Catherine L., Griffin, Simon J., and Usher‐Smith, Juliet A.
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- 2021
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16. Effects of nutritional supplements on the re-infection rate of soil-transmitted helminths in school-age children: A systematic review and meta-analysis.
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Isah, Aisha Ummi Jibrin, Ekwunife, Obinna Ikechukwu, Ejie, Izuchukwu Loveth, and Mandrik, Olena
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RANDOMIZED controlled trials ,META-analysis ,ASCARIS lumbricoides ,HELMINTHIASIS ,DIETARY supplements - Abstract
Background: The effect of nutritional supplements on the re-infection rate of species-specific soil-transmitted helminth infections in school-aged children remains complex and available evidence on the subject matter has not been synthesized. Methods: The review included randomised controlled trials (RCTs) and cluster RCTs investigating food supplements on school-aged children between the age of 4–17 years. A search for RCTs was conducted on eight databases from inception to 12
th June 2019. Cochrane Risk of Bias tool was used to assess the risk of bias in all included studies. Meta-analysis and narrative synthesis were conducted to describe and analyze the results of the review. Outcomes were summarized using the mean difference or standardized mean difference where appropriate. Results: The search produced 1,816 records. Six studies met the inclusion criteria (five individually RCTs and one cluster RCT). Four studies reported data on all three STH species, while one study only reported data on Ascaris lumbricoides infections and the last study reported data on only hookworm infections. Overall, the risk of bias in four individual studies was low across most domains. Nutritional supplementation failed to statistically reduce the re-infection rates of the three STH species. The effect of nutritional supplements on measures of physical wellbeing in school-aged children could not be determined. Conclusions: The findings from this systematic review suggest that nutritional supplements for treatment of STH in children should not be encouraged unless better evidence emerges. Conclusion of earlier reviews on general populations may not necessarily apply to children since children possibly have a higher re-infection rate. [ABSTRACT FROM AUTHOR]- Published
- 2020
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17. Systematic reviews as a "lens of evidence": Determinants of cost‐effectiveness of breast cancer screening.
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Mandrik, Olena, Ekwunife, Obinna Ikechukwu, Meheus, Filip, Severens, Johan L. (Hans), Lhachimi, Stefan, Uyl‐de Groot, Carin A., and Murillo, Raul
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META-analysis , *EARLY detection of cancer , *BREAST cancer , *HIGH-income countries , *OLDER women - Abstract
Systematic reviews with economic components are important decision tools for stakeholders seeking to evaluate technologies, such as breast cancer screening (BCS) programs. This overview of systematic reviews explores the determinants of the cost‐effectiveness of BCS and assesses the quality of secondary evidence. The search identified 30 systematic reviews that reported on the determinants of the cost‐effectiveness of BCS, including the costs of breast cancer and BCS. While the quality of the reviews varied widely, only four out of 30 papers were considered to be of a high quality. We did not identify publication bias in the original evidence on the cost‐effectiveness of mammography screening; however, we highlight a need for improved clarity in both reporting and data verification. The reviews consisted mainly of studies from high‐income countries. Breast cancer costs varied widely among the studies. Factors leading to higher costs included: time (diagnosis and last months before death), later stage or metastases, recurrence of the disease, age below 64 years and type of follow‐up (more intensive or more specialized). Overall, screening with mammography was considered cost‐effective in the age range 50‐69 years in Western European and Northern American countries but not for older or younger women. Its cost‐effectiveness was questionable for low‐income settings and Asia. Mammography screening was more cost‐effective with biennial screening compared to annual screening and single reading using computer‐aided detection vs double reading. No information on the cost‐effectiveness of ultrasonography was found, and there is much uncertainty on the cost‐effectiveness of CBE because of methodological limitations. [ABSTRACT FROM AUTHOR]
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- 2019
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18. Population preferences for breast cancer screening policies: Discrete choice experiment in Belarus.
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Mandrik, Olena, Yaumenenka, Alesya, Herrero, Rolando, and Jonker, Marcel F.
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EARLY detection of cancer , *BREAST cancer , *AKAIKE information criterion , *BREAST exams , *BREAST , *MAMMOGRAMS - Abstract
Reaching an acceptable participation rate in screening programs is challenging. With the objective of supporting the Belarus government to implement mammography screening as a single intervention, we analyse the main determinants of breast cancer screening participation. We developed a discrete choice experiment using a mixed research approach, comprising a literature review, in-depth interviews with key informants (n = 23), "think aloud" pilots (n = 10) and quantitative measurement of stated preferences for a representative sample of Belarus women (n = 428, 89% response rate). The choice data were analysed using a latent class logit model with four classes selected based on statistical (consistent Akaike information criterion) and interpretational considerations. Women in the sample were representative of all six geographic regions, mainly urban (81%), and high-education (31%) characteristics. Preferences of women in all four classes were primarily influenced by the perceived reliability of the test (sensitivity and screening method) and costs. Travel and waiting time were important components in the decision for 34% of women. Most women in Belarus preferred mammography screening to the existing clinical breast examination (90%). However, if the national screening program is restricted in capacity, this proportion of women will drop to 55%. Women in all four classes preferred combined screening (mammography with clinical breast examination) to single mammography. While this preference was stronger if lower test sensitivity was assumed, 28% of women consistently gave more importance to combined screening than to test sensitivity. Women in Belarus were favourable to mammography screening. Population should be informed that there are no benefits of combined screening compared to single mammography. The results of this study are directly relevant to policy makers and help them targeting the screening population. [ABSTRACT FROM AUTHOR]
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- 2019
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19. Systematic reviews as a 'lens of evidence': Determinants of benefits and harms of breast cancer screening.
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Mandrik, Olena, Zielonke, Nadine, Meheus, Filip, Severens, J.L. (Hans), Guha, Neela, Herrero Acosta, Rolando, and Murillo, Raul
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META-analysis ,EARLY detection of cancer ,BREAST cancer ,BREAST self-examination ,BREAST exams - Abstract
This systematic review, stimulated by inconsistency in secondary evidence, reports the benefits and harms of breast cancer (BC) screening and their determinants according to systematic reviews. A systematic search, which identified 9,976 abstracts, led to the inclusion of 58 reviews. BC mortality reduction with screening mammography was 15–25% in trials and 28–56% in observational studies in all age groups, and the risk of stage III+ cancers was reduced for women older than 49 years. Overdiagnosis due to mammography was 1–60% in trials and 1–12% in studies with a low risk of bias, and cumulative false‐positive rates were lower with biennial than annual screening (3–17% vs 0.01–41%). There is no consistency in the reviews' conclusions about the magnitude of BC mortality reduction among women younger than 50 years or older than 69 years, or determinants of benefits and harms of mammography, including the type of mammography (digital vs screen‐film), the number of views and the screening interval. Similarly, there was no solid evidence on determinants of benefits and harms or BC mortality reduction with screening by ultrasonography or clinical breast examination (sensitivity ranges, 54–84% and 47–69%, respectively), and strong evidence of unfavourable benefit‐to‐harm ratio with breast self‐examination. The reviews' conclusions were not dependent on the quality of the reviews or publication date. Systematic reviews on mammography screening, mainly from high‐income countries, systematically disagree on the interpretation of the benefit‐to‐harm ratio. Future reviews are unlikely to clarify the discrepancies unless new original studies are published. What's new? Multiple reviews of the benefits and harms of mammography have been used to inform breast cancer screening guideline development. This process, however, has led to inconsistent screening recommendations. Here, synthesis of results from systematic reviews based on original evidence of determinants of mammography benefits and harms reveals irregularities in data on magnitude of breast cancer reduction obtained with screening mammography. Evidence on determinants of benefits and harms of ultrasonography and clinical breast examination was lacking. Inconsistency in reviews' conclusions was affected by characteristics of the original evidence, indicating that new original studies are needed to clarify discrepancies in screening recommendations. [ABSTRACT FROM AUTHOR]
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- 2019
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20. Disutility associated with cancer screening programs: A systematic review.
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Li, Lin, Severens, J. L. (Hans), and Mandrik, Olena
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EARLY detection of cancer ,META-analysis ,ADENOMATOUS polyps ,THERAPEUTICS ,LUNG cancer ,GLEASON grading system ,UTILITY theory - Abstract
Objectives: Disutility allows to identify how much population values intervention-related harms contributing to knowledge on the benefits/harms ratio of cancer screening programs. This systematic review evaluates disutility related to cancer screening applying a utility theory framework. Methods: Using a predefined protocol, Embase, Medline Ovid, Web of Science, Cochrane, Google scholar and supplementary sources were systematically searched. The framework grouped disutilities associated with breast, cervical, lung, colorectal, and prostate cancer screening programs into the screening, diagnostic work up, and treatment phases. We assessed the quality of included studies according to the relevance to target population, risk of bias, appropriateness of measure and the time frame. Results: Out of 2840 hits, we included 38 studies, of which 27 measured (and others estimated) disutilities. Around 70% of studies had medium to high-level quality. Measured disutilities and Quality Adjusted Life Years loss were 0–0.03 and 0–0.0013 respectively in screening phases. Both disutilities and Quality Adjusted Life Years loss had similar ranges in diagnostic work up (0–0.26), and treatment (0.09–0.27) phases. We found no measured disutilities available for lung cancer screening and—little evidence for disutilities in treatment phase. Almost 40% of the estimated disutility values were above the range of measured ones. Conclusions: Cancer screening programs led to low disutities related to screening phase, and low to moderate disutilities related to diagnostic work up and treatment phases. These disutility values varied by the measurement instrument applied, and were higher in studies with lower quality. The estimated disutility values comparing to the measured ones tended to overestimate the harms. [ABSTRACT FROM AUTHOR]
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- 2019
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21. REVIEWING TRANSFERABILITY IN ECONOMIC EVALUATIONS ORIGINATING FROM EASTERN EUROPE.
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Mandrik, Olena, Knies, Saskia, Kalo, Zoltan, and Severens, Johan L.
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Objectives: The aim of this study is to analyze the quality and transferability issues reported in published peer-reviewed English-language economic evaluations based in healthcare settings of the Central and Eastern European (CEE) and former Soviet countries.Methods: A systematic search of economic evaluations of healthcare interventions was performed for Armenia, Azerbaijan, Belarus, Bulgaria, Estonia, Georgia, Turkmenistan, Kazakhstan, Lithuania, the former Yugoslav Republic of Macedonia, Republic of Moldova, Romania, the Russian Federation, Serbia, Slovenia, and Ukraine. The included studies were assessed according to their characteristics, quality (using Drummond's checklist), use of local data, and the transferability of inputs and results, if addressed.Results: Most of the thirty-four economic evaluations identified were conducted from a healthcare or payer perspective (74 percent), with 47 percent of studies focusing on infectious diseases. The least frequently and transparently addressed parameters were the items' stated perspectives, relevant costs included, accurately measured costs in appropriate units, outcomes and costs credibly valued, and uncertainties addressed. Local data were often used to assess unit costs, baseline risk, and resource usage, while jurisdiction-specific utilities were included in only one study. Only 32 percent of relevant studies discussed the limitations of using foreign data, and 36 percent of studies discussed the transferability of their own study results to other jurisdictions.Conclusions: Transferability of the results is not sufficiently discussed in published economic evaluations. To simplify the transferability of studies to other jurisdictions, the following should be comprehensively addressed: uncertainty, impact of influential parameters, and data transferability. The transparency of reporting should be improved. [ABSTRACT FROM AUTHOR]- Published
- 2015
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22. Cost-effectiveness of adding rituximab to fludarabine and cyclophosphamide for treatment of chronic lymphocytic leukemia in Ukraine.
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Mandrik, Olena, Ramos, Isaac Corro, Knies, Saskia, Al, Maiwenn, and Severens, Johan L.
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CHRONIC lymphocytic leukemia treatment ,RITUXIMAB ,FLUDARABINE ,HEMATOLOGIC malignancies ,LYMPHOCYTIC leukemia ,PATIENTS ,LEUKEMIA treatment - Abstract
The aim of this study was to assess the cost-effectiveness, from a health care perspective, of adding rituximab to fludarabine and cyclophosphamide scheme (FCR versus FC) for treatment-naïve and refractory/relapsed Ukrainian patients with chronic lymphocytic leukemia. A decision-analytic Markov cohort model with three health states and 1-month cycle time was developed and run within a life time horizon. Data from two multinational, prospective, open-label Phase 3 studies were used to assess patients' survival. While utilities were generalized from UK data, local resource utilization and disease-associated treatment, hospitalization, and side effect costs were applied. The alternative scenario was performed to assess the impact of lower life expectancy of the general population in Ukraine on the incremental cost-effectiveness ratio (ICER) for treatment-naïve patients. One-way, two-way, and probabilistic sensitivity analyses were conducted to assess the robustness of the results. The ICER (in US dollars) of treating chronic lymphocytic leukemia patients with FCR versus FC is US$8,704 per quality-adjusted life year gained for treatment-naïve patients and US$11,056 for refractory/relapsed patients. When survival data were modified to the lower life expectancy of the general population in Ukraine, the ICER for treatment-naïve patients was higher than US$13,000. This value is higher than three times the current gross domestic product per capita in Ukraine. Sensitivity analyses have shown a high impact of rituximab costs and a moderate impact of differences in utilities on the ICER. Furthermore, probabilistic sensitivity analyses have shown that for refractory/relapsed patients the probability of FCR being cost-effective is higher than for treatment-naïve patients and is close to one if the threshold is higher than US$15,000. State coverage of rituximab treatment may be considered a cost-effective treatment for the Ukrainian population under conditions of economic stability, cost-effectiveness threshold growth, or rituximab price negotiations. [ABSTRACT FROM AUTHOR]
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- 2015
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23. Impact of hypoglycemia on daily life of type 2 diabetes patients in Ukraine.
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Mandrik, Olena, Severens, Johan L., Doroshenko, Olena, Pan'kiv, Vladymir, Kravchun, Nonna, Vlasenko, Maryna, Hulchiy, Mykola, Baljuk, Maryna, Komisarenko, Yuliia, Martsynik, Eugene, Sokolova, Liubov, Zalis'ka, Olga, and Mankovsky, Boris
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HYPOGLYCEMIA ,ENDOCRINE diseases ,PHYSICIAN-patient relations ,TYPE 2 diabetes - Abstract
This study evaluates the impact of hypoglycemia on the lives of Ukrainian patients with type 2 diabetes mellitus. The secondary objective was to explore patient-physician relationships and the attitudes of patients towards various informational resources on diabetes management. Three focus groups with 26 patients were conducted. Qualitative information was evaluated using content analysis. The results show that patients with type 2 diabetes mellitus in Ukraine are adapting to potential attacks of hypoglycemia; however, they still experience periodic manifestations of hypoglycemia that significantly affect their psychological well-being. This result is similar to observations made in other countries. Ukrainian patients >40 years old mainly receive information on disease management from endocrinologists, and rarely use internet resources on diabetes management. Information provision was especially important at the early stage of the disease, when patients lack information on hypoglycemia manifestations and could therefore fail to identify and manage it properly. [ABSTRACT FROM AUTHOR]
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- 2013
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24. IARC Perspective on Oral Cancer Prevention.
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Bouvard, Véronique, Nethan, Suzanne T., Singh, Deependra, Warnakulasuriya, Saman, Mehrotra, Ravi, Chaturvedi, Anil K., Hsiu-Hsi Chen, Tony, Ayo-Yusuf, Olalekan A., Gupta, Prakash C., Kerr, Alexander R., Tilakaratne, Wanninayake M., Anantharaman, Devasena, Conway, David I., Gillenwater, Ann, Johnson, Newell W., Kowalski, Luiz P., Leon, Maria E., Mandrik, Olena, Nagao, Toru, and Prasad, Vinayak M.
- Abstract
The article presents the discussion on cancer of the lip and oral cavity estimated to rank 16th in incidence. Topics include wide range of genetic, environmental, and behavioral factors contributing to the risk of oral cancer; and results of several additional studies on smoking cessation and oral cancer risk being published.
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- 2022
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25. Protocol for the YORKSURe prospective multistage study testing the feasibility for early detection of bladder cancer in populations with high disease-specific mortality risk.
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Catto JW, North B, Goff M, Carter A, Sleeth M, Mandrik O, Chilcott J, Sasieni P, and Cumberbatch MGK
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- Humans, Feasibility Studies, Prospective Studies, State Medicine, Early Detection of Cancer, Randomized Controlled Trials as Topic, Hematuria, Urinary Bladder Neoplasms diagnosis
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Introduction: Around 25% of patients with bladder cancer (BCa) present with invasive disease. Non-randomised studies of population-based screening have suggested reductions in BCa-specific mortality are possible through earlier detection. The low prevalence of lethal disease in the general population means screening is not cost-effective and there is no consensus on the best strategy. Yorkshire has some of the highest mortality rates from BCa in England. We aim to test whether population screening in a region of high mortality risk will lead to a downward stage-migration of aggressive BCa, improved survival and is cost-effective., Methods and Analysis: YORKSURe is a tiered, randomised, multicohort study to test the feasibility of a large BCa screening randomised controlled trial. In three parallel cohorts, participants will self-test urine (at home) up to six times. Results are submitted via a mobile app or freephone. Those with a positive result will be invited for further investigation at community-based early detection clinics or within usual National Health Service (NHS) pathways. In Cohort 1, we will post self-testing kits to research engaged participants (n=2000) embedded within the Yorkshire Lung Screening Trial. In Cohort 2, we will post self-testing kits to 3000 invitees. Cohort 2 participants will be randomised between haematuria and glycosuria testing using a reveal/conceal design. In Cohort 3, we will post self-testing kits to 500 patients within the NHS pathway for investigation of haematuria. Our primary outcomes are rates of recruitment and randomisation, rates of positive test and acceptability of the design. The study is currently recruiting and scheduled to finish in June 2023., Ethics and Dissemination: The study has received the following approvals: London Riverside Research Ethics Committee (22/LO/0018) and Health Research Authority Confidentiality Advisory Group (20/CAG/0009). Results will be made available to providers and researchers via publicly accessible scientific journals., Trial Registration Number: ISRCTN34273159., Competing Interests: Competing interests: JC has received reimbursement for consultancy from Astra Zeneca, BMS, Ipsen, Janssen and Roche, speaker fees from BMS, Ipsen, MSD, Nucleix and Roche, honoraria for membership of advisory boards from Astra Zeneca, Ferring, Roche and Janssen and research funding from Roche. PS is a paid member of the Scientific Advisory Board of GRAIL and the medical advisory board of NSV. The remaining authors declare no potential conflicts of interest., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY. Published by BMJ.)
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- 2023
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26. Perspective on oral cancer screening: Time for implementation research and beyond.
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Mandrik O, Roitberg F, Lauby-Secretan B, Parak U, Ramadas K, Varenne B, Sankaranarayanan R, and Carvalho AL
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- Humans, Early Detection of Cancer, Risk Factors, Alcohol Drinking, Mass Screening methods, Mouth Neoplasms diagnosis
- Abstract
Screening aims to detect cancer in asymptomatic populations. In oral cancer, clinical oral examination is the current standard method for screening. Oral cancer screening may be performed by a physician or a healthcare workers and is an affordable and feasible method. There is some evidence that this low-cost method is effective in decreasing mortality from oral cancer in high risk population. The cluster-randomised trial in India that had 15 years of follow-up reported an 81 % mortality reduction in high-risk populations of tobacco and/or alcohol users who adhered to four screening rounds. The observational studies similarly reported 21-22 % reduction in advanced oral cancer and 24-26 % reduction in oral cancer mortality among high risk population. Implementation and evaluation of oral cancer screening programmes in high risk population will support the goals of the World Health Organisation on global oral health., Competing Interests: Conflict of interests The authors have no conflict of interests to declare., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2023
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27. The Cost-Effectiveness of Belimumab and Voclosporin for Patients with Lupus Nephritis in the United States.
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Mandrik O, Fotheringham J, Ren S, Tice JA, Chapman RH, Stevenson MD, Pearson SD, Herron-Smith S, Agboola F, and Thokala P
- Subjects
- Clinical Trials as Topic, Cost-Benefit Analysis, Female, Humans, Male, Quality-Adjusted Life Years, Renal Insufficiency, United States, Antibodies, Monoclonal, Humanized economics, Antibodies, Monoclonal, Humanized therapeutic use, Cyclosporine economics, Cyclosporine therapeutic use, Immunosuppressive Agents economics, Immunosuppressive Agents therapeutic use, Lupus Nephritis drug therapy
- Abstract
Background and Objectives: Despite existing therapies, people with lupus nephritis progress to kidney failure and have reduced life expectancy. Belimumab and voclosporin are two new disease-modifying therapies recently approved for the treatment of lupus nephritis., Design, Setting, Participants, & Measurements: A de novo economic model was developed to estimate the cost-effectiveness of these therapies, including the following health states: "complete response," "partial response," and "active disease" defined by eGFR and proteinuria changes, kidney failure, and death. Short-term data and mean cohort characteristics were sourced from pivotal clinical trials of belimumab (the Belimumab International Study in Lupus Nephritis) and voclosporin (the Aurinia Urinary Protection Reduction Active-Lupus with Voclosporin trial and Aurinia Renal Response in Active Lupus With Voclosporin). Risk of mortality and kidney failure were on the basis of survival modeling using published Kaplan-Meier data. Each drug was compared with the standard of care as represented by the comparator arm in its respective pivotal trial(s) using US health care sector perspective, with a societal perspective also explored., Results: In the health care perspective probabilistic analysis, the incremental cost-effectiveness ratio for belimumab compared with its control arm was estimated to be approximately $95,000 per quality-adjusted life year. The corresponding incremental ratio for voclosporin compared with its control arm was approximately $150,000 per quality-adjusted life year. Compared with their respective standard care arms, the probabilities of belimumab and voclosporin being cost effective at a threshold of $150,000 per quality-adjusted life year were 69% and 49%, respectively. Cost-effectiveness was dependent on assumptions made regarding survival in response states, costs and utilities in active disease, and the utilities in response states. In the analysis from a societal perspective, the incremental ratio for belimumab was estimated to be approximately $66,000 per quality-adjusted life year, and the incremental ratio for voclosporin was estimated to be approximately $133,000 per quality-adjusted life year., Conclusions: Compared with their respective standard care arms, belimumab but not voclosporin met willingness-to-pay thresholds of $100,000 per quality-adjusted life year. Despite potential clinical superiority in the informing trials, there remains high uncertainty around the cost-effectiveness of voclosporin., (Copyright © 2022 by the American Society of Nephrology.)
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- 2022
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28. The effectiveness and value of belimumab and voclosporin for lupus nephritis.
- Author
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Tice JA, Mandrik O, Thokala P, Fotheringham J, and Pearson SD
- Subjects
- Antibodies, Monoclonal, Humanized therapeutic use, Cost-Benefit Analysis, Cyclosporine therapeutic use, Humans, Immunosuppressive Agents therapeutic use, Models, Economic, Antibodies, Monoclonal, Humanized economics, Cyclosporine economics, Immunosuppressive Agents economics, Lupus Nephritis drug therapy
- Abstract
DISCLOSURES: Funding for this summary was contributed by Arnold Ventures, California Health Care Foundation, The Donaghue Foundation, Harvard Pilgrim Health Care, and Kaiser Foundation Health Plan to the Institute for Clinical and Economic Review (ICER), an independent organization that evaluates the evidence on the value of health care interventions. ICER's annual policy summit is supported by dues from AbbVie, Aetna, America's Health Insurance Plans, Anthem, Alnylam, AstraZeneca, Biogen, Blue Shield of CA, Boehringer-Ingelheim, Cambia Health Services, CVS, Editas, Evolve Pharmacy, Express Scripts, Genentech/Roche, GlaxoSmithKline, Harvard Pilgrim, Health Care Service Corporation, HealthFirst, Health Partners, Humana, Johnson & Johnson (Janssen), Kaiser Permanente, LEO Pharma, Mallinckrodt, Merck, Novartis, National Pharmaceutical Council, Pfizer, Premera, Prime Therapeutics, Regeneron, Sanofi, Spark Therapeutics, uniQure, and United Healthcare. Pearson is employed by ICER. Through their affiliated institutions, Tice, Mandrik, Thokala, and Fotheringham received funding from ICER for the work described in this summary.
- Published
- 2021
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29. The Costs and Benefits of Risk Stratification for Colorectal Cancer Screening Based On Phenotypic and Genetic Risk: A Health Economic Analysis.
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Thomas C, Mandrik O, Saunders CL, Thompson D, Whyte S, Griffin S, and Usher-Smith JA
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- Adult, Aged, Aged, 80 and over, Colonoscopy economics, Colorectal Neoplasms epidemiology, Colorectal Neoplasms genetics, Colorectal Neoplasms pathology, Cost-Benefit Analysis, England epidemiology, Female, Genetic Predisposition to Disease, Genetic Testing economics, Humans, Incidence, Life Style, Male, Mass Screening economics, Mass Screening methods, Middle Aged, Models, Statistical, Occult Blood, Phenotype, Risk Assessment, Risk Factors, State Medicine economics, Colorectal Neoplasms diagnosis, Early Detection of Cancer economics, Early Detection of Cancer methods
- Abstract
Population-based screening for colorectal cancer is an effective and cost-effective way of reducing colorectal cancer incidence and mortality. Many genetic and phenotypic risk factors for colorectal cancer have been identified, leading to development of colorectal cancer risk scores with varying discrimination. However, these are not currently used by population screening programs. We performed an economic analysis to assess the cost-effectiveness, clinical outcomes, and resource impact of using risk-stratification based on phenotypic and genetic risk, taking a UK National Health Service perspective. Biennial fecal immunochemical test (FIT), starting at an age determined through risk-assessment at age 40, was compared with FIT screening starting at a fixed age for all individuals. Compared with inviting everyone from age 60, using a risk score with area under the receiver operating characteristic curve of 0.721 to determine FIT screening start age, produces 418 QALYs, costs £247,000, and results in 218 fewer colorectal cancer cases and 156 fewer colorectal cancer deaths per 100,000 people, with similar FIT screening invites. There is 96% probability that risk-stratification is cost-effective, with net monetary benefit (based on £20,000 per QALY threshold) estimated at £8.1 million per 100,000 people. The maximum that could be spent on risk-assessment and still be cost-effective is £114 per person. Lower benefits are produced with lower discrimination risk scores, lower mean screening start age, or higher FIT thresholds. Risk-stratified screening benefits men more than women. Using risk to determine FIT screening start age could improve the clinical outcomes and cost effectiveness of colorectal cancer screening without using significant additional screening resources. PREVENTION RELEVANCE: Colorectal cancer screening is essential for early detection and prevention of colorectal cancer, but implementation is often limited by resource constraints. This work shows that risk-stratification using genetic and phenotypic risk could improve the effectiveness and cost-effectiveness of screening programs, without using substantially more screening resources than are currently available., (©2021 The Authors; Published by the American Association for Cancer Research.)
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- 2021
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30. Quo Vadis HTA for Medical Devices in Central and Eastern Europe? Recommendations to Address Methodological Challenges.
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Daubner-Bendes R, Kovács S, Niewada M, Huic M, Drummond M, Ciani O, Blankart CR, Mandrik O, Torbica A, Yfantopoulos J, Petrova G, Holownia-Voloskova M, Taylor RS, Al M, Piniazhko O, Lorenzovici L, Tarricone R, Zemplényi A, and Kaló Z
- Subjects
- Cost-Benefit Analysis, Europe, Europe, Eastern, Technology Assessment, Biomedical
- Abstract
Objectives: Methodological challenges in the evaluation of medical devices (MDs) may be different for early and late technology adopter countries, as well as the potential health technology assessment (HTA) solutions to tackle them. This study aims to provide guidance to Central and Eastern European (CEE) countries on how to address key challenges of HTA for MDs with special focus on the transferability of scientific evidence. Methods: As part of the COMED Horizon 2020 project, a comprehensive list of issues related to MD HTA were identified based on a targeted literature review. Health technology assessment issues which pose a greater challenge or require different solutions in late technology adopter countries were selected. Draught recommendations to address these issues were developed and discussed in a focus group. The recommendations were then validated with a wider group of experts, including HTA and reimbursement decision makers from CEE countries in May and June 2020. Results: A consolidated list of 11 recommendations were developed in 3 major areas: (1) clinical value assessment, focusing on the use of joint EU work, relying on real-world evidence, use of coverage with evidence development schemes, transferring evidence from foreign countries and addressing the challenges of learning curve and centre effect; (2) economic value assessment, covering cost calculation of complex medical devices and transferability of economic evaluations of MDs; (3) HTA processes, related to the frequent product modifications and various indications of MDs. Conclusions: Central and Eastern European countries with limited resources for conducting HTA, can benefit from HTA methods and evidence generated in early technology adopter countries. Considering the appropriate reuse of international HTA materials, late technology adopter countries can still implement HTA, even for MDs, which have a more limited evidence base compared with pharmaceuticals., Competing Interests: RD-B, SK, AZ, and ZK were employed by Syreon Research Institute. MH is self-employed in HTA/EBM Consulting Centre and has not received any remuneration of funding from the COMED project, nor has any commercial or financial relationship that could be construed as a potential conflict of interest. The remaining 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 Daubner-Bendes, Kovács, Niewada, Huic, Drummond, Ciani, Blankart, Mandrik, Torbica, Yfantopoulos, Petrova, Holownia-Voloskova, Taylor, Al, Piniazhko, Lorenzovici, Tarricone, Zemplényi and Kaló.)
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- 2021
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31. Economic value of in vitro fertilization in Ukraine, Belarus, and Kazakhstan.
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Mandrik O, Knies S, and Severens JL
- Abstract
Background: An economic value calculation was performed to estimate the lifetime net present value of in vitro fertilization (IVF) in Ukraine, Belarus, and Kazakhstan., Methods: Net lifetime tax revenues were used to represent governmental benefits accruing from a hypothetical cohort of an IVF population born in 2009 using the methodology of generational accounting. Governmental expenses related to this population included social benefits, education and health care, unemployment support, and pensions. Where available, country-specific data referencing official sources were applied., Results: The average health care cost needed to achieve one additional birth from the governmental perspective varied from $2,599 in Ukraine to $5,509 in Belarus. The net present value from the population born using IVF was positive in all countries: for Ukraine ($9,839), Belarus ($21,702), and Kazakhstan ($2,295). The break-even costs of drugs and supplies per IVF procedure is expected to be $3,870, $8,530, and $1,780, respectively. Probabilistic sensitivity analyses based on 5,000 simulations show that the average net present value per person remains positive: $1,894±$7,619, $27,925±$12,407, and $17,229±$24,637 in Ukraine, Belarus, and Kazakhstan, respectively., Conclusion: Financing IVF may represent a good investment in terms of governmental financial returns, even in lower-income countries with state-financed health care systems such as Ukraine, Belarus, and Kazakhstan.
- Published
- 2015
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32. Cost comparison of treating chronic hepatitis C genotype one with pegylated interferons in Ukraine.
- Author
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Mandrik O, Knies S, Golubovska O, Duda O, Dudar L, Fedorchenko S, Zaliska O, and Hans Severens JL
- Abstract
Based on the pivotal trial showing no clinically relevant differences between pegylated interferon α-2b (Peg-α-2b) and α-2a (Peg-α-2a) combined with ribavirin for treatment of chronic hepatitis C virus (HCV) genotype 1 infection in Ukraine, a cost-minimization analysis was performed using a 1 year time horizon and both a health care and patients' perspective. A decision tree reflects treatment pathways. Drug costs were based on drug labeling and adjusted to the average body mass in Ukraine. Subgroup analysis was applied to deal with heterogeneity of patient's weight causing dose changes. A break-even price of Peg-α-2a and Peg-α-2b (based on the average dose) was calculated. Univariate sensitivity analyses and probabilistic sensitivity analysis were carried out to reflect decision uncertainty. For an average body weight, total medical costs per patient differ from US$9220 for Peg-α-2b to US$9513 for Peg-α-2a from a health care perspective, and from US$15,212 to US$15,696 from a patients' perspective. Sensitivity analyses show these results are robust. With average body weight, the break-even price of Peg-α-2b may be 7.3% higher than Peg-α-2a to have similar total costs.
- Published
- 2014
- Full Text
- View/download PDF
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