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1.
Drug Discov Today ; 27(8): 2252-2260, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35364271

RESUMO

The future of medicines is likely determined by an array of scientific, socioeconomic, policy, medical need, and geopolitical factors, with many uncertainties ahead. Here, we report from a scenario project, analyzing various trends, crucial and complex developments in the medicines' space. From a range of 'critical uncertainties' we derived two scenario drivers: global convergence, ranging from very high (trust and solidarity), to very low (fragmented ecosystems); and disease orientation, ranging from public health first to interceptive medicine. This resulted in four contrasting portraits of the future of medicines and social policy: deprioritizing the high-end; sustainable flow; transformative healing; and global divide. All those involved in drug discovery and development can use these for strengthening preparedness for the crucial challenges ahead.


Assuntos
Ecossistema , Política Pública , Previsões
2.
Value Health ; 25(3): 390-399, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35227451

RESUMO

OBJECTIVES: Advanced therapy medicinal products (ATMPs) are highly innovative therapies. Their costs and uncertain value claims have raised concerns among health technology assessment (HTA) bodies and payers. Little is known about how underlying considerations in HTA of ATMPs shape assessment and reimbursement recommendations. We aim to identify and assess key considerations that played a role in HTA of ATMPs underlying reimbursement recommendations. METHODS: A review of HTA reports was conducted of all authorized ATMPs in Scotland, The Netherlands, and England. Considerations were extracted and categorized into EUnetHTA Core Model domains. Per jurisdiction, considerations were aggregated and key considerations identified (defined as occurring in >1/assessment per jurisdiction). A narrative analysis was conducted comparing key considerations between jurisdictions and different reimbursement recommendations. RESULTS: We identified 15 ATMPs and 18 HTA reports. In The Netherlands and England most key considerations were identified in clinical effectiveness (EFF) and cost- and economic effectiveness (ECO) domains. In Scotland, the social aspects domain yielded most key considerations, followed by ECO and EFF. More uncertainty in evidence and assessment outcomes was accepted when orphan or end-of-life criteria were applied. A higher percentage of considerations supporting recommendations were identified for products with positive recommendations compared with restricted and negative recommendations. CONCLUSIONS: This is the first empirical review of HTA's using the EUnetHTA Core Model to identify and structure key considerations retrospectively. It provides insights in supporting and opposing considerations for reimbursement of individual products and differences between jurisdictions. Besides the EFF and ECO domain, the social, ethical, and legal domains seem to bear considerable weight in assessment of ATMPs.


Assuntos
Análise Custo-Benefício/métodos , Análise Custo-Benefício/estatística & dados numéricos , Avaliação da Tecnologia Biomédica/métodos , Avaliação da Tecnologia Biomédica/estatística & dados numéricos , Terapias em Estudo/economia , Análise Ética , Europa (Continente) , Humanos , Reembolso de Seguro de Saúde/economia , Estudos Retrospectivos , Terapias em Estudo/ética , Incerteza
3.
Int J Health Policy Manag ; 11(5): 642-650, 2022 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-33131224

RESUMO

BACKGROUND: The European Medicines Agency (EMA) aims to resolve uncertainties associated with conditionally approved drugs by imposing post-approval studies. Results from these studies may be relevant for health technology assessment (HTA) organizations. This study investigated the role of regulator-imposed post-approval studies within HTA. METHODS: For all conditionally approved drugs up to December 2018, regulator-imposed post-approval studies were identified from EMA's public assessment reports. The availability for and inclusion of study results in relative effectiveness (re)assessments were analyzed for 4 European HTA organizations: NICE (National Institute for Health and Care Excellence, England/Wales), HAS (Haute Autorité de Santé, France), ZIN (Zorginstituut Nederland, the Netherlands) and the European Network for Health Technology Assessment (EUnetHTA, Europe). When study results became available between an HTA organization's initial assessment and reassessment, it was evaluated whether and how they affected the assessment and its outcome. RESULTS: For 36 conditionally approved drugs, 98 post-approval studies were imposed. In total, 81 initial relative effectiveness assessments (REAs) and 13 reassessments were available, with numbers of drugs (re)assessed varying greatly between jurisdictions. Study results were available for 16 initial REAs (20%) and included in 14 (88%), and available for 10 reassessments (77%) and included in all (100%). Five reassessments had an outcome different from the initial REA, with 4 (2 positive and 2 negative changes) relating directly to the new study results. Reassessments often cited the inability of post-approval studies to resolve the concerns reported in the initial REA. CONCLUSION: Results from regulator-imposed post-approval studies for conditionally approved drugs were not often used in REAs by HTA organizations, because they were often not yet available at the time of initial assessment and because reassessments were scarce. When available, results from post-approval studies were almost always used within HTA, and they have led to changes in conclusions about drugs' relative effectiveness. Post-approval studies can be relevant within HTA but the current lack of alignment between regulators and HTA organizations limits their potential.


Assuntos
Avaliação da Tecnologia Biomédica , Europa (Continente) , França , Humanos , Países Baixos , Avaliação da Tecnologia Biomédica/métodos , Incerteza
4.
Br J Clin Pharmacol ; 88(5): 2169-2179, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34779004

RESUMO

AIMS: Cancer drugs are increasingly approved through expedited regulatory pathways including the European conditional marketing authorization (CMA). Whether, when taking CMA post-approval confirmatory trials into account, the level of evidence and clinical benefit between CMA and standard approved (SMA) drugs differs remains unknown. METHODS: We identified all CMA cancer indications converted to SMA in 2006-2020 and compared these to similar SMA indications with regard to pivotal trial and CMA post-approval confirmatory trial design, outcomes and demonstrated clinical benefit (per the European Society for Medical Oncology Magnitude of Clinical Benefit Scale). We tested for differences in clinical benefit and whether substantial clinical benefit was demonstrated. To account for the clinical benefit of unconverted CMA indications, we performed sensitivity analyses. RESULTS: We included 15 SMA and 15 converted CMA cancer indications (17 remained unconverted). Approval of 11 SMA (73%) and four CMA indications (27%) was supported by a controlled trial. Improved overall survival (OS) was demonstrated for four SMA indications (27%). Improved quality of life (QoL) was demonstrated for three SMA (20%) and one CMA indication(s) (7%). Of subsequent CMA post-approval confirmatory trials, 11 were controlled (79%), one demonstrated improved OS (7%) and five improved QoL (36%). After conversion, CMA indications were associated with similar clinical benefit (P = .31) and substantial clinical benefit as SMA indications (risk ratio 1.4, 95% confidence interval 0.57-3.4). CONCLUSION: While CMA cancer indications are initially associated with less comprehensive evidence than SMA indications, levels of evidence and clinical benefit are similar after conversion from CMA to SMA.


Assuntos
Antineoplásicos , Neoplasias , Antineoplásicos/uso terapêutico , Aprovação de Drogas , Europa (Continente) , Humanos , Neoplasias/tratamento farmacológico , Autorização Prévia , Qualidade de Vida
5.
Clin Transl Sci ; 14(4): 1566-1577, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33786991

RESUMO

We aimed to determine whether uncertainties identified by the European Medicines Agency (EMA) were associated with negative relative effectiveness assessments (REAs) and negative overall reimbursement recommendations by national health technology assessment (HTA) agencies. Therefore, we identified all HTA reports from Haute Autorité de Santé (HAS; France), National Institute for Health and Care Excellence (NICE; England/Wales), Scottish Medicine Consortium (SMC; Scotland), and Zorginstituut Nederland (ZIN; The Netherlands) for a cohort of innovative medicines that the EMA had approved in 2009 to 2010 (excluding vaccines). Uncertainty regarding pivotal trial methodology, clinical outcomes, and their clinical relevance were combined to reflect a low, medium, or high level of uncertainty. We assessed associations by calculating risk ratios (RRs) and 95% confidence intervals (CIs), and agreement between REA and overall reimbursement recommendation outcomes. We identified 36 medicines for which 121 reimbursement recommendations had been issued by the HTA agencies between September 2009 and July 2018. High versus low uncertainty was associated with an increased risk for negative REAs and negative overall reimbursement recommendations: RRs 1.9 (95% CI 0.9-3.9) and 1.6 (95% CI 0.7-3.5), respectively, which was supported by further sensitivity analyses. We identified a lack of agreement between 33 (27%) REA and overall reimbursement recommendation outcomes, which were mostly restricted recommendations that followed on negative REAs in case of low or medium uncertainty. In conclusion, high uncertainty identified by the EMA was associated with negative REAs and negative overall reimbursement recommendations. To reduce uncertainty and ultimately facilitate efficient patient access, regulators, HTA agencies, and other stakeholders should discuss how uncertainties should be weighed and addressed early in the drug life cycle of innovative treatments.


Assuntos
Tomada de Decisões Gerenciais , Drogas em Investigação , Política de Saúde/economia , Mecanismo de Reembolso/organização & administração , Ensaios Clínicos como Assunto , Análise Custo-Benefício , Custos de Medicamentos , União Europeia , Humanos , Invenções , Estudos Retrospectivos , Avaliação da Tecnologia Biomédica/normas , Incerteza
6.
Cytotherapy ; 23(8): 730-739, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33593688

RESUMO

BACKGROUND AIMS: Cell-based therapies (CBTs) provide opportunities to treat rare and high-burden diseases. Manufacturing development of these innovative products is said to be complex and costly. However, little research is available providing insight into resource use and cost drivers. Therefore, this study aimed to assess the feasibility of estimating the cost of manufacturing development of two cell-based therapy case studies using a CBT cost framework specifically designed for small-scale cell-based therapies. METHODS: A retrospective costing study was conducted in which the cost of developing an adoptive immunotherapy of Epstein-Barr virus-specific cytotoxic T lymphocytes (CTLs) and a pluripotent stem cell (PSC) master cell bank was estimated. Manufacturing development was defined as products advancing from technology readiness level 3 to 6. The study was conducted in a Scottish facility. Development steps were recreated via developer focus groups. Data were collected from facility administrative and financial records and developer interviews. RESULTS: Application of the manufacturing cost framework to retrospectively estimate the manufacturing design cost of two case studies in one Scottish facility appeared feasible. Manufacturing development cost was estimated at £1,201,016 for CTLs and £494,456 for PSCs. Most costs were accrued in the facility domain (56% and 51%), followed by personnel (20% and 32%), materials (19% and 15%) and equipment (4% and 2%). CONCLUSIONS: Based on this study, it seems feasible to retrospectively estimate resources consumed in manufacturing development of cell-based therapies. This fosters inclusion of cost in the formulation and dissemination of best practices to facilitate early and sustainable patient access and inform future cost-conscious manufacturing design decisions.


Assuntos
Infecções por Vírus Epstein-Barr , Terapia Baseada em Transplante de Células e Tecidos , Estudos de Viabilidade , Herpesvirus Humano 4 , Humanos , Estudos Retrospectivos
7.
Cytotherapy ; 22(7): 388-397, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32414635

RESUMO

BACKGROUND AIMS: Recent technical and clinical advances with cell-based therapies (CBTs) hold great promise in the treatment of patients with rare diseases and those with high unmet medical need. Currently the majority of CBTs are developed and manufactured in specialized academic facilities. Due to small scale, unique characteristics and specific supply chain, CBT manufacturing is considered costly compared to more conventional medicinal products. As a result, biomedical researchers and clinicians are increasingly faced with cost considerations in CBT development. The objective of this research was to develop a costing framework and methodology for academic and other small-scale facilities that manufacture cell-based therapies. METHODS: We conducted an international multi-center costing study in four facilities in Europe using eight CBTs as case studies. This study includes costs from cell or tissue procurement to release of final product for clinical use. First, via interviews with research scientists, clinicians, biomedical scientists, pharmacists and technicians, we designed a high-level costing framework. Next, we developed a more detailed uniform methodology to allocate cost items. Costs were divided into steps (tissue procurement, manufacturing and fill-finish). The steps were each subdivided into cost categories (materials, equipment, personnel and facility), and each category was broken down into facility running (fixed) costs and operational (variable) costs. The methodology was tested via the case studies and validated in developer interviews. Costs are expressed in 2018 euros (€). RESULTS: The framework and methodology were applicable across facilities and proved sensitive to differences in product and facility characteristics. Case study cost estimates ranged between €23 033 and €190 799 Euros per batch, with batch yield varying between 1 and 88 doses. The cost estimations revealed hidden costs to developers and provided insights into cost drivers to help design manufacturing best practices. CONCLUSIONS: This framework and methodology provide step-by-step guidance to estimate manufacturing costs specifically for cell-based therapies manufactured in academic and other small-scale enterprises. The framework and methodology can be used to inform and plan cost-conscious strategies for CBTs.


Assuntos
Academias e Institutos , Terapia Baseada em Transplante de Células e Tecidos/economia , Custos e Análise de Custo , Comércio , Europa (Continente) , Instalações de Saúde , Humanos
8.
Soc Sci Med ; 222: 76-83, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30605802

RESUMO

Drug regulatory agencies around the world increasingly implement expedited regulatory pathways allowing for approval of medicines that intend to address unmet medical needs based on lower evidentiary standards than would be conventionally required. Few studies have investigated how companies and regulators utilise these pathways. We therefore conducted a longitudinal analysis of the emergence and implementation of the conditional marketing authorisation (CMA) instrument in the European Union. Drawing on archival documents, procedural data and interviews, we show that there was substantial ambiguity among regulators and companies about how to strike a new balance between evidentiary requirements and patient needs. As ambiguities were left unresolved, parties became reluctant to use CMA and in the majority of procedures did not use the pathway in a prospectively planned fashion. Rather, CMA became an option for regulators and companies to apply when submitted data were not strong enough to justify standard approval. Particularly, incumbent companies profited from this. The results stress the challenges of realising institutional change in drug regulation by showing how interest-driven actors can act upon ambiguities in attempts to shape regulatory outcomes and stretch rule interpretations.


Assuntos
Aprovação de Drogas/organização & administração , Indústria Farmacêutica/organização & administração , União Europeia , Humanos , Estudos de Casos Organizacionais , Fatores de Tempo
9.
Global Health ; 14(1): 109, 2018 11 16.
Artigo em Inglês | MEDLINE | ID: mdl-30445979

RESUMO

BACKGROUND: National pharmacovigilance centres (national centres) are gradually gaining visibility as part of the healthcare delivery system in Africa. As does happen in high-income countries, it is assumed that national centres can play a central coordinating role in their national pharmacovigilance (PV) systems. However, there are no studies that have investigated whether national centres in Africa have sufficient organizational capacity to deliver on this mandate and previous studies have reported challenges such as lack of funding, political will and adequate human resources. We conducted interviews with strategic leaders in national centres in 18 African countries, to examine how they link the capacity of their organization to the outcomes of activities coordinated by their centres. Strategic leaders were asked to describe three situations in which activities conducted by their centre were deemed successful and unsuccessful. We analyzed these experiences for common themes and examined whether strategic leaders attributed particular types of resources and relationships with stakeholders to successful or unsuccessful activities. RESULTS: We found that strategic leaders most often attributed successful experiences to the acquisition of political (e.g. legal mandate) or technical (e.g. active surveillance database) resources, while unsuccessful experiences were often attributed to the lack of financial and human resources. Stakeholders that were most often mentioned in association with successful experiences were national government and development partners, whereas national government and public health programmes (PHPs) were often mentioned in unsuccessful experiences. All 18 centres, regardless of maturity of their PV systems had similar challenges. CONCLUSIONS: The study concludes that national centres in Africa are faced with 3 core challenges: (1) over-reliance on development partners, (2) seeming indifference of national governments to provide support after national centres have gained membership of the World Health Organization (WHO) Programme for International Drug Monitoring (PIDM) and (3) engaging public health programmes in a sustainable way.


Assuntos
Recursos em Saúde , Organizações/organização & administração , Farmacovigilância , África , Feminino , Humanos , Liderança , Masculino , Avaliação de Programas e Projetos de Saúde , Pesquisa Qualitativa
10.
Drug Discov Today ; 23(7): 1328-1333, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29574211

RESUMO

A comparative analysis of assessment procedures for authorization of all European Union (EU) applications for advanced therapy medicinal products (ATMPs) shows that negative opinions were associated with a lack of clinical efficacy and identified severe safety risks. Unmet medical need was often considered in positive opinions and outweighed scientific uncertainties. Numerous quality issues illustrate the difficulties in this domain for ATMP development. Altogether, it suggests that setting appropriate standards for ATMP authorization in Europe, similar to elsewhere, is a learning experience. The experimental characteristics of authorized ATMPs urge regulators, industry, and clinical practice to pay accurate attention to post-marketing risk management to limit patient risk. Methodologies for ATMP development and regulatory evaluations need to be continuously evaluated for the field to flourish.


Assuntos
Terapia Baseada em Transplante de Células e Tecidos , Tomada de Decisões , Aprovação de Drogas/legislação & jurisprudência , União Europeia , Marketing de Serviços de Saúde/legislação & jurisprudência , Produção de Droga sem Interesse Comercial/legislação & jurisprudência , Terapia Baseada em Transplante de Células e Tecidos/efeitos adversos , Terapia Baseada em Transplante de Células e Tecidos/normas , Humanos , Marketing de Serviços de Saúde/normas , Produção de Droga sem Interesse Comercial/normas , Segurança do Paciente , Formulação de Políticas , Vigilância de Produtos Comercializados/normas , Controle de Qualidade , Medição de Risco , Fatores de Risco
11.
Clin Pharmacol Ther ; 103(1): 120-127, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28983911

RESUMO

Gene- and cell-based therapies (GCTs) offer potential new treatment options for unmet medical needs. However, the use of conventional regulatory requirements for medicinal products to approve GCTs may impede patient access and therapeutic innovation. Furthermore, requirements differ between jurisdictions, complicating the global regulatory landscape. We provide a comparative overview of regulatory requirements for GCT approval in five jurisdictions and hypothesize on the consequences of the observed global differences on patient access and therapeutic innovation.


Assuntos
Terapia Baseada em Transplante de Células e Tecidos/métodos , Aprovação de Drogas , Controle de Medicamentos e Entorpecentes/organização & administração , Terapia Genética/métodos , Aprovação de Drogas/métodos , Aprovação de Drogas/organização & administração , Saúde Global , Acessibilidade aos Serviços de Saúde , Humanos
12.
Drug Discov Today ; 22(6): 937-946, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28288783

RESUMO

There is growing interest in characterising factors associated with positive regulatory outcomes for drug marketing authorisations. We assessed empirical studies published over the past 15 years seeking to identify predictive factors. Factors were classified to one of four 'factor clusters': evidentiary support; product or indication characteristics; company experience or strategy; social and regulatory factors. We observed a heterogeneous mix of technical factors (e.g., study designs, clinical evidence of efficacy) and less studied social factors (e.g., company-regulator interactions). We confirmed factors known to be of relevance to drug approval decisions (imperative) and a cohort of less understood (compensatory) social factors. Having robust supportive clinical evidence, addressing rare or serious illness, following scientific advice and prior company experience were associated with positive outcomes, which illustrated the multifactorial nature of regulatory decision making and factors need to be considered holistically while having varying, context-dependent importance.


Assuntos
Aprovação de Drogas , Tomada de Decisões , Humanos , Marketing
13.
Eur J Clin Pharmacol ; 71(10): 1237-44, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26204969

RESUMO

PURPOSE: The aim of this study is to provide a comprehensive overview of the outcomes of marketing authorisation applications via the mutual recognition and decentralised procedures (MRP/DCP) and assess determinants of licensing failure during CMDh referral procedures. METHODS: All MRP/DCP procedures to the Co-ordination group for Mutual recognition and Decentralised procedures-human (CMDh) during the period from January 2006 to December 2013 were analysed. Reasons for starting referral procedures were scored. In addition, a survey under pharmaceutical companies was performed to estimate the frequency of licensing failure prior to CMDh referrals. RESULTS: During the study period, 10392 MRP/DCP procedures were finalized. Three hundred seventy-seven (3.6%) resulted in a referral procedure, of which 70 (19%) resulted in licensing failure, defined as refusal or withdrawal of the application. The frequency of CMDh referrals decreased from 14.5% in 2006 to 1.6% in 2013. Of all referrals, 272 (72%) were resolved through consensus within the CMDh, the remaining 105 (28%) were resolved at the level of the CHMP. Most referrals were started because of objections raised about the clinical development program. Study design issues and objections about the demonstration of equivalence were most likely to result in licensing failure. An estimated 11% of all MRP/DCP procedures resulted in licensing failure prior to CMDh referral. CONCLUSION: Whereas the absolute number of MRP/DCP procedures resulting in a referral has reduced substantially over the past years, no specific time trend could be observed regarding the frequency of referrals resulting in licensing failure. Increased knowledge at the level of companies and regulators has reduced the frequency of late-stage failure of marketing applications via the MRP/DCP.


Assuntos
Aprovação de Drogas/organização & administração , Aprovação de Drogas/estatística & dados numéricos , Drogas em Investigação , União Europeia , Política , Aprovação de Drogas/legislação & jurisprudência , Medicamentos Genéricos , Humanos , Marketing , Fatores de Tempo
14.
PLoS One ; 9(9): e108722, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25268242

RESUMO

AIM: There is discussion whether medicines can be authorized on the market based on evidence from surrogate endpoints. We assessed opinions of different stakeholders on this topic. METHODS: We conducted an online questionnaire that targeted various stakeholder groups (regulatory agencies, pharmaceutical industry, academia, relevant public sector organisations) and medical specialties (cardiology or nephrology vs. other). Participants were enrolled through purposeful sampling. We inquired for conditions under which surrogate endpoints can be used, the validity of various cardio-renal biomarkers and new approaches for biomarker use. RESULTS: Participants agreed that surrogate endpoints can be used when the surrogate is scientifically valid (5-point Likert response format, mean score: 4.3, SD: 0.9) or when there is an unmet clinical need (mean score: 3.8, SD: 1.2). Industry participants agreed to a greater extent than regulators and academics. However, out of four proposed surrogates (blood pressure (BP), HbA1c, albuminuria, CRP) for cardiovascular outcomes or end-stage renal disease, only use of BP for cardiovascular outcomes was deemed moderately accurate (mean: 3.6, SD: 1.1). Specialists in cardiology or nephrology tended to be more positive about the use of surrogate endpoints. CONCLUSION: Stakeholders in drug development do not oppose to the use of surrogate endpoints in drug marketing authorization, but most surrogates are not considered valid. To solve this impasse, increased efforts are required to validate surrogate endpoints and to explore alternative ways to use them.


Assuntos
Doenças Cardiovasculares/tratamento farmacológico , Aprovação de Drogas/métodos , Drogas em Investigação/uso terapêutico , Nefropatias/tratamento farmacológico , Guias de Prática Clínica como Assunto , Adulto , Idoso , Albuminúria/diagnóstico , Biomarcadores/análise , Pesquisa Biomédica/legislação & jurisprudência , Pressão Sanguínea , Proteína C-Reativa/metabolismo , Aprovação de Drogas/legislação & jurisprudência , Indústria Farmacêutica/legislação & jurisprudência , Feminino , Hemoglobinas Glicadas/metabolismo , Órgãos dos Sistemas de Saúde/legislação & jurisprudência , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Setor Público/legislação & jurisprudência , Inquéritos e Questionários
15.
PLoS One ; 7(10): e45984, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23071532

RESUMO

BACKGROUND: Pharmaceutical trials are mainly initiated by sponsors and investigators in the United States, Western Europe and Japan. However, more and more patients are enrolled in Central and Eastern Europe, Latin America and Asia. The involvement of patients in new geographical settings raises questions about scientific and ethical integrity, especially when experience with those settings is lacking at the level of trial management. We therefore studied to what extent the geographical shift in patient enrolment is anticipated in the composition of trial management teams using the author nationalities on the primary outcome publication as an indicator of leadership. METHODS AND FINDINGS: We conducted a cohort-study among 1,445 registered trials in www.clinicaltrials.gov that could be matched with a primary outcome publication using clinical trial registry numbers listed in publications. The name of the sponsor and the enrolment countries were extracted from all registrations. The author-addresses of all authors were extracted from the publications. We searched the author-address of all publications to determine whether enrolment countries and sponsors listed on registrations also appeared on a matched publication. Of all sponsors, 80.1% were listed with an author-address on the publication. Of all enrolment countries, 50.3% appeared with an author-address on the publication. The listing of enrolment countries was especially low for industry-funded trials (39.9%) as compared to government (90.4%) and not-for-profit funding (93.7%). We found that listing of enrolment countries in industry-funded trials was higher for traditional research locations such as the United States (98.2%) and Japan (72.0%) as compared to nontraditional research locations such as Poland (27.3%) and Mexico (14.1%). CONCLUSIONS: Despite patient enrolment efforts, the involvement of researchers from nontraditional locations in trial management as measured by their contribution to manuscript writing is modest. This division of labor has significant implications for the scientific and ethical integrity of global clinical research.


Assuntos
Pesquisa Biomédica/ética , Ensaios Clínicos como Assunto/normas , Liderança , Autoria , Pesquisa Biomédica/organização & administração , Humanos , Internacionalidade , Japão , Editoração , Sistema de Registros , Apoio à Pesquisa como Assunto , Reino Unido , Estados Unidos
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