An unethical trial and the politicization of the COVID-19 pandemic in Brazil: The case of Prevent Senior.

The Brazilian Federal Senate created a Parliamentary Inquiry Commission (CPI) to investigate the Bolsonaro government's irregularities in the management of the COVID-19 pandemic. One of the cases that drew attention was the research conducted by Prevent Senior, a private health insurance company, on the early treatment of COVID-19. The article analyzes the scientific validity of the research and the ethical problems related to its implementation. It is based on analysis of Prevent Senior's report of the clinical study, the Brazilian and USA clinical trial registries, the Senate's CPI report, and on the information reported by the media. This case of scientific fraud and political-ideological bias exemplifies how Prevent Senior, using a questionable protocol to enhance its reputation and gain government support, was instrumental in building the "early treatment" narrative for COVID-19, and shows how it served as a basis for a government public policy that promoted the use of ineffective drugs.

Inequity in access to vaccines: the failure of the global response to the COVID-19 pandemic.

This article summarizes the strategies used to rapidly develop COVID-19 vaccines and distribute them globally, with an emphasis on vaccines developed in western nations. It is based on interviews and information gathered regarding the response to the pandemic, both from international organizations and official documents from Brazil, Argentina, Colombia, Peru, and Mexico. While vaccine development has been hailed as successful, their global distribution has been highly unequal. We look at how the pandemic succeeded in mobilizing large quantities of government resources, and how citizens volunteered their bodies so that clinical trials could be completed quickly. However, patents prevented the expansion of manufacturing capacity, and the governments of a few wealthy countries prioritized the protection - and in some cases overprotection - of their citizens at the expense of protecting the rest of world's population. Among the major beneficiaries of the global response to the pandemic are the leading vaccine companies, their executives, and investors. The article concludes with some of the lessons learned in this process.

Este artículo resume las estrategias que se han utilizado para desarrollar rápidamente las vacunas COVID-19 y distribuirlas a nivel mundial. Se centra en las vacunas desarrolladas en los países occidentales. Con base en entrevistas y recopilación de información existente sobre la respuesta a la pandemia, tanto de agencias internacionales como de documentos oficiales de Brasil, Argentina, Colombia, Perú y México se reconoce que, si bien el desarrollo de las vacunas ha sido un éxito, su distribución a nivel mundial ha sido muy desigual. Como veremos, la pandemia consiguió movilizar una gran cantidad de recursos gubernamentales y los ciudadanos prestaron sus cuerpos para que los ensayos clínicos se pudieran concluir rápidamente. Sin embargo, las patentes impidieron la expansión de la capacidad de fabricación y los gobiernos de unos pocos países ricos priorizaron la protección y, en algunos casos, la sobreprotección de sus ciudadanos a expensas de la protección del resto de la población mundial. Entre los principales beneficiarios de la respuesta mundial a la pandemia se encuentran las principales empresas de vacunas, sus ejecutivos e inversores. El artículo concluye con algunas de las lecciones aprendidas en este proceso.

Un ensayo clínico no ético y la politización de la pandemia de COVID-19 en Brasil: El caso de Prevent Senior.

El Senado Federal de Brasil creó una Comisión Parlamentaria de Investigación (CPI) para investigar las irregularidades del gobierno de Bolsonaro en la gestión de la pandemia de COVID-19. Uno de los casos que llamó la atención fue la investigación llevada a cabo por Prevent Senior, una empresa privada de seguros de salud, sobre el tratamiento temprano de COVID-19. Este artículo analiza la validez científica de la investigación y los problemas éticos relacionados con su implementación. Se basa en un análisis del informe del estudio clínico de Prevent Senior, de los registros de ensayos clínicos de Brasil y Estados Unidos, del informe de la CPI del Senado y de información difundida por los medios de comunicación. Este caso de fraude científico y sesgo político-ideológico ejemplifica cómo Prevent Senior, utilizando un protocolo cuestionable para mejorar su reputación y obtener el apoyo del gobierno, contribuyó a la construcción de la narrativa de "tratamiento temprano" para COVID-19, y muestra cómo sirvió de base para una política pública del gobierno que promovió el uso de medicamentos ineficaces.

Uma pesquisa clínica não ética e a politização da pandemia da COVID-19 no Brasil: o caso da Prevent Senior.

O Senado Federal brasileiro criou uma Comissão Parlamentar de Inquérito (CPI) para investigar as irregularidades do governo Bolsonaro na gestão da pandemia da COVID-19. Um dos casos que chamou a atenção foi a pesquisa realizada pela Prevent Senior, uma seguradora privada de saúde, sobre o tratamento precoce da COVID-19. O artigo analisa a validade científica da pesquisa e os problemas éticos relacionados à sua implementação. Baseia-se na análise do relatório do ensaio clínico da Prevent Senior, dos registros do ensaio clínico em plataformas do Brasil e dos EUA, do relatório da CPI do Senado e nas informações divulgadas pela mídia. Esse caso de fraude científica e viés político-ideológico exemplifica como a Prevent Senior, usando um protocolo questionável para melhorar sua reputação e ganhar o apoio do governo, foi fundamental na construção da narrativa do "tratamento precoce" para a COVID-19, e mostra como serviu de base para uma política pública governamental que promoveu o uso de drogas ineficazes.

Desigualdad en el acceso a las vacunas: el fracaso de la respuesta mundial a la pandemia de COVID-19 / Inequity in access to vaccines: the failure of the global response to the COVID-19 pandemic

RESUMEN Este artículo resume las estrategias que se han utilizado para desarrollar rápidamente las vacunas COVID-19 y distribuirlas a nivel mundial. Se centra en las vacunas desarrolladas en los países occidentales. Con base en entrevistas y recopilación de información existente sobre la respuesta a la pandemia, tanto de agencias internacionales como de documentos oficiales de Brasil, Argentina, Colombia, Perú y México se reconoce que, si bien el desarrollo de las vacunas ha sido un éxito, su distribución a nivel mundial ha sido muy desigual. Como veremos, la pandemia consiguió movilizar una gran cantidad de recursos gubernamentales y los ciudadanos prestaron sus cuerpos para que los ensayos clínicos se pudieran concluir rápidamente. Sin embargo, las patentes impidieron la expansión de la capacidad de fabricación y los gobiernos de unos pocos países ricos priorizaron la protección y, en algunos casos, la sobreprotección de sus ciudadanos a expensas de la protección del resto de la población mundial. Entre los principales beneficiarios de la respuesta mundial a la pandemia se encuentran las principales empresas de vacunas, sus ejecutivos e inversores. El artículo concluye con algunas de las lecciones aprendidas en este proceso.

ABSTRACT This article summarizes the strategies used to rapidly develop COVID-19 vaccines and distribute them globally, with an emphasis on vaccines developed in western nations. It is based on interviews and information gathered regarding the response to the pandemic, both from international organizations and official documents from Brazil, Argentina, Colombia, Peru, and Mexico. While vaccine development has been hailed as successful, their global distribution has been highly unequal. We look at how the pandemic succeeded in mobilizing large quantities of government resources, and how citizens volunteered their bodies so that clinical trials could be completed quickly. However, patents prevented the expansion of manufacturing capacity, and the governments of a few wealthy countries prioritized the protection - and in some cases overprotection - of their citizens at the expense of protecting the rest of world's population. Among the major beneficiaries of the global response to the pandemic are the leading vaccine companies, their executives, and investors. The article concludes with some of the lessons learned in this process.

The Associations Between Breastfeeding Duration and Body Dissatisfaction, Ethnicity, and Obesity Among Mexican Women, a Cross-Sectional Study, ENSANUT 2012.

Introduction: Body image dissatisfaction (BID) has been inversely associated with breastfeeding initiation particularly among women with obesity. However, less is known on BID and the association with maintaining breastfeeding in Mexico, where breastfeeding rate is decreasing across ethnic subgroups. Therefore, we explore this gap of knowledge in diverse ethnic subgroups across levels of maternal weight status. Methods: Data were derived from the Mexican National Health and Nutrition Survey (Encuesta Nacional de Salud y Nutrición [ENSANUT] 2012), and 10,466 women aged 20-49 years were included. Breastfeeding (<6 months versus ≥6 months) of the last child, BID (Stunkard Figure Rating Scale), anthropometric (body mass index, BMI), sociodemographics, and biological variables were collected. Crude and adjusted target associations and effect modifiers were assessed using weighted-logistic regression models. Results: Overall, 72.4% of ever breastfeeding mothers breastfed a minimum of 6 months, 22% were indigenous, 74% were dissatisfied with their body image (BID >0), and 37% had obesity (BMI ≥30 kg/m2). In the multivariable analysis, for each one-unit increase in the BID score, the adjusted odds of breastfeeding (≥6 months) decreased by 6% (odds ratio [OR] = 0.94, 95% confidence interval [CI]: 0.89-0.99). After stratifications, only among women with obesity, a greater BID score was associated with lower odds of breastfeeding duration by 24% (OR = 0.76, 95% CI: 0.64-0.89) in indigenous and by 10% (OR = 0.90, 95% CI: 0.82-0.98) in non-indigenous women. Conclusions: Mexican women with a higher BID score reported lower odds of breastfeeding duration (≥6 months). Body image concerns should be integrated into a health promotion curriculum to mitigate their negative effect particularly in certain segments of the populations, such as women with obesity and among indigenous women.

Los comités de ética en investigación y la protección de los sujetos que participan en ensayos clínicos / Ethics committees in research and the protection of subjects involved in clinical trials / Os comitês de ética em pesquisa e a proteção de assuntos que participam de ensaios clínicos

Introducción: La responsabilidad por proteger a los seres humanos que participan en investigación ha sido delegada a los Comités de Ética de Investigación. La industria y los investigadores consideran que los CEI retrasan innecesariamente el inicio de la investigación y los bioeticistas dicen que no tienen los recursos para realizar sus funciones. El objetivo de este artículo es identificar las carencias y problemas que afectan el desempeño de los CEI que aprueban protocolos de ensayos clínicos financiados por la industria y las soluciones propuestas. Métodos: Revisión de la literatura que describe las características de los CEI ubicados en países de altos ingresos que revisan ensayos clínicos financiados por la industria, su desempeño y las sugerencias de fortalecimiento. Resultados: Los problemas que afectan el funcionamiento de los CEI se conocen desde finales del siglo pasado, tanto entidades reguladoras como investigadores han propuesto formas de fortalecerlos, pero solo unas pocas se han intentado y ninguna se ha institucionalizado. Llama la atención que todavía no haya estándares de formación mínima para los miembros de los CEI, ni se les haya dotado de recursos para monitorear adecuadamente la implementación de los ensayos. Conclusiones: La necesidad de profesionalizar los CEI beneficia a la industria. Los CEI, al revisar protocolos y monitorear la implementación de los ensayos clínicos y hablar con los sujetos, pueden detectar comportamientos que afectan la calidad de la información recabada y la seguridad de los voluntarios.

Introduction: The responsibility for protecting human beings involved in research has been delegated to the research ethics committees. The industry and the researchers consider that the CEI delay unnecessarily the initiation of the investigation and the Bioeticistas say that they do not have the resources to carry out their functions. The objective of this article is to identify the deficiencies and problems that affect the performance of the CEI that approve the protocols of clinical trials financed by the industry and the proposed solutions. Methods: Review of the literature describing the characteristics of CEI located in high-income countries reviewing industry-financed clinical trials, performance, and strengthening suggestions. Results: The problems affecting the functioning of the CEI have been known since the end of the last century, both regulatory entities and researchers have proposed ways to strengthen them, but only a few have been tried and none has been Institutionalized. It is striking that there are still no minimum training standards for CEI members, nor have they been provided with the resources to adequately monitor the implementation of the trials. Conclusions: the need to professionalize the CEI benefits the industry. CEI, by reviewing protocols and monitoring the implementation of clinical trials and speaking with subjects, can detect behaviors that affect the quality of information collected and the safety of volunteers.

Introdução: A responsabilidade de proteger os seres humanos que participam da pesquisa foi delegada aos Comitês de Ética em Pesquisa. A indústria e os pesquisadores acreditam que as CEI atrasam desnecessariamente o início da investigação e os bioeticistas dizem que não dispõem dos recursos para desempenhar suas funções. O objetivo deste artigo é identificar as deficiências e os problemas que afetam o desempenho das CEI que aprovam protocolos de ensaios clínicos financiados pela indústria e as soluções propostas. Métodos: Revisão da literatura que descreve as características dos CEI localizados em países de alta renda que analisam ensaios clínicos financiados pela indústria, seu desempenho e sugestões de fortalecimento. Resultados: Os problemas que afetam o funcionamento das CEI são conhecidos desde o final do século passado, ambas entidades reguladoras e pesquisadores propuseram formas de fortalecêlas, mas apenas algumas foram julgadas e nenhuma foi institucionalizada. É surpreendente que ainda não existam padrões mínimos de treinamento para os membros dos CEI, nem foram fornecidos recursos para monitorar adequadamente a implementação dos testes. Conclusões: A necessidade de profissionalizar os CEI beneficia o setor. Os CEI, ao revisar protocolos e monitorar a implementação de ensaios clínicos e conversar com os sujeitos, podem detectar comportamentos que afetam a qualidade das informações coletadas e a segurança dos voluntários.

Body Image Dissatisfaction, Obesity and Their Associations with Breastfeeding in Mexican Women, a Cross-Sectional Study.

Introduction In Mexico the breastfeeding rate is low and the obesity rate is high. Body image concerns, particularly prevalent in obese women, are associated with low breastfeeding rate; however, this association has never been examined in Mexican women. To fill this need, we examined the association between body image dissatisfaction (BID) and breastfeeding across levels of maternal weight status in Mexican women. Methods A cross-sectional study was used, utilizing data from the Mexican National Health and Nutrition Survey (ENSANUT) for 2012. The breastfeeding (Never or breastfed less than 30 days, Still breastfeeding, Ever breastfed) of the last child (age ≤ 3 years), BID (Stunkard Figure Rating Scale), anthropometric (Body Mass Index, BMI), and associated characteristics were collected. Weighted-multinomial logistic regression models were utilized to examine the adjusted association between BID and breastfeeding and the effect modification of maternal weight status. Results Overall, 2422 women aged 20-49 years met the eligibility criteria. Of these, 247 (10.8%) had never breastfed or breastfed less than 30 days, 826 (32%) were still breastfeeding, and 1349 (57.2%) had breastfed. A total of 38.2% were overweight (25 ≤ BMI < 30 kg m2) and 26.2% were obese (BMI ≥ 30 kg m2). In the adjusted model, while stratifying by maternal weight status levels, a greater BID was associated with a lower odds of sill breastfeeding (OR 0.58, 95% CI 0.45-0.75) and having breastfed (OR 0.65, 95% CI 0.50-0.83) only among women with BMI ≥ 30 kg m2. Discussion The results highlight the potential relationship between body image concerns and breastfeeding in Mexican women with obesity. However, the causality of such relationship needs further investigation, ideally using a longitudinal study design.

How drug companies manipulate prescribing behavior / Cómo las empresas farmacéuticas manipulan la conducta para formular los medicamentos

Abstract Pharmaceutical companies affect prescribing behavior through various means, including pharmaceutical salespeople (drug reps), drug samples, influential peers, and educational events. Information on drugs provided by industry representatives has been shown to be inaccurate. Drug samples are among the most effective marketing tools that companies have. "Thought leaders" or "key opinion leaders" are used to persuade peers to use drugs for unapproved uses, raise awareness of targeted diseases, and to shape perceptions of a drug's benefits and harms, as well as perceptions about competing drugs. Although grants provided for talks, seminars, and meetings are described as "unrestricted," it is understood that the company gets to select some speakers, and that speakers with views that undermine marketing messages will not be invited. Promotion has been shown to increase physicians' prescription of targeted drugs, and increases prescription costs.

Resumen Las empresas farmacéuticas influyen sobre la conducta para formular los medicamentos de diversas formas, incluyendo a los vendedores de las empresas farmacéuticas (representantes de medicamentos), las muestras de medicamentos, pares influyentes y eventos educativos. La información sobre los medicamentos suministrada por los representantes de la industria ha demostrado ser inexacta. Las muestras de medicamentos son una de las herramientas de mercadeo más efectivas con que cuentan las empresas. Se recurre a "Los líderes de pensamiento" o a los "principales líderes de opinión" (KOLs por sus siglas en inglés) para convencer a sus pares de que utilicen medicamentos para usos no aprobados, sensibilizar sobre patologías objetivo, y conformar percepciones sobre los beneficios y perjuicios de un medicamento, además de crear impresiones sobre medicamentos en competencia. A pesar de que se dice que las asignaciones monetarias para dictar charlas, celebrar seminarios y reuniones no deben tener restricciones, es claro que la empresa selecciona determinados conferencistas y que aquellos cuyas opiniones socaven los mensajes de mercadeo no serán invitados. Se ha demostrado que la promoción aumenta la prescripción de medicamentos específicos y aumenta los costos de esta.

A Missing Piece in Clinical Trial Inspections in Latin America: Interviews With Research Subjects in Peru.

Most regulatory agencies conduct clinical trial (CT) site inspections, but the experiences and behaviors of research subjects and their knowledge of the rights and obligations that ensue from participating in a CT are seldom explored. The authors assessed the technical feasibility of incorporating interviews with participants in CT inspections. This article analyzes the responses of 13 CT participants, 14% ( n = 96) of those included in three tuberculosis (TB) CTs. Participants did not object to being interviewed and provided information not obtained during regular inspections. Participants were appreciative of the agency's concern for the integrity of the CT process. Most interviewees did not understand the consent form and were unaware that they were participating in an experiment with unapproved new drugs. Participants' decision to enroll in CT related to undue inducement and therapeutic misconception. Some patients' behaviors, undisclosed to researchers, could have compromised the integrity of the data collected.

Ensayos clínicos en América Latina: implicancias para la sustentabilidad y seguridad de los mercados farmacéuticos y el bienestar de los sujetos / Clinical trials in Latin America: implications for the sustainability and safety of pharmaceutical markets and the wellbeing of research subjects

RESUMEN Este estudio buscó verificar si los medicamentos aprobados por la Food and Drug Administration (FDA) de EE.UU. fueron registrados, comercializados y vendidos a precios accesibles en los países latinoamericanos en los que fueron testeados, además de constatar su contribución a la calidad del mercado farmacéutico. Se consultó la lista de nuevas entidades moleculares (NEM) aprobadas por la FDA en 2011 y 2012 para identificar los países en los cuales se realizaron ensayos pivotales. Se analizó la accesibilidad económica como proporción de ingresos y se recolectó información sobre seguridad y eficacia en boletines independientes de medicamentos. En los dos años analizados, se testearon 33 medicamentos en 12 países latinoamericanos. Solo el 60% de los registros esperados se habían completado para septiembre de 2014. A excepción de uno, todos los productos para los cuales se obtuvo información de precio (n=18) costaron más que un sueldo mínimo mensual en todos los países. Solo cinco medicamentos fueron clasificados como "posiblemente mejores que otros tratamientos disponibles". Solo una de las NEM satisface las prioridades de la atención médica de los países de bajos y medianos ingresos.

ABSTRACT This study sought to verify whether drugs approved by the US Food and Drug Administration (FDA) were registered, commercialized and sold at affordable prices in the Latin American countries where they had been tested, as well as to ascertain their contribution to the quality of the pharmaceutical market. The list of New Molecular Entities (NMEs) approved by the FDA in 2011 and 2012 was consulted to determine the countries where pivotal trials were conducted. Affordability was assessed as a proportion of income and information on safety and efficacy was gathered from independent drug bulletins. In the study years, 33 medications were tested in 12 Latin American countries. Only 60% of the expected registrations had been completed by September 2014. With one exception, all products for which pricing information was obtained (n=18) cost more than one monthly minimum wage in all countries. Only five drugs were classified as "could be better than available treatments." Just one of the NMEs responds to the health care priorities in low and middle income countries.

Clinical trials in Latin America: implications for the sustainability and safety of pharmaceutical markets and the wellbeing of research subjects. / Ensayos clínicos en América Latina: implicancias para la sustentabilidad y seguridad de los mercados farmacéuticos y el bienestar de los sujetos.

This study sought to verify whether drugs approved by the US Food and Drug Administration (FDA) were registered, commercialized and sold at affordable prices in the Latin American countries where they had been tested, as well as to ascertain their contribution to the quality of the pharmaceutical market. The list of New Molecular Entities (NMEs) approved by the FDA in 2011 and 2012 was consulted to determine the countries where pivotal trials were conducted. Affordability was assessed as a proportion of income and information on safety and efficacy was gathered from independent drug bulletins. In the study years, 33 medications were tested in 12 Latin American countries. Only 60% of the expected registrations had been completed by September 2014. With one exception, all products for which pricing information was obtained (n=18) cost more than one monthly minimum wage in all countries. Only five drugs were classified as "could be better than available treatments." Just one of the NMEs responds to the health care priorities in low and middle income countries.

[The impact of researchers loyal to Big Pharma on the ethics and quality of clinical trials in Latin America]. / El impacto de los investigadores fieles a la industria farmacéutica en la ética y la calidad de los ensayos clínicos realizados en Latinoamérica.

This article explains the difficulties innovative pharmaceutical firms have in repaying shareholders with attractive dividends. The problem is the result of the expiration of the patents of blockbuster drugs and the difficulties that the firms have in bringing new blockbuster drugs to the market. One of the solutions companies have found has been to accelerate the implementation of clinical trials in order to expedite the commercialization of new drugs. Doing so increases the period in which they can sell drugs at monopoly prices. We therefore discuss how innovative pharmaceutical firms shorten the implementation time of clinical trials in Latin America and the consequences such actions have on the quality of the collected data, the protection of human rights of the subjects of experimentation, and compliance with the ethical principles approved in international declarations.

El impacto de los investigadores fieles a la industria farmacéutica en la ética y la calidad de los ensayos clínicos realizados en Latinoamérica / The impact of researchers loyal to Big Pharma on the ethics and quality of clinical trials in Latin America

Este artículo explica las dificultades que tienen las farmacéuticas innovadoras para retribuir a sus accionistas con dividendos atractivos. El problema es el resultado de la caducidad de las patentes de los medicamentos estrella (blockbusters) y las dificultades que tienen en desarrollar nuevos medicamentos estrella. Una solución que las empresas han encontrado es acelerar la ejecución de los ensayos clínicos para obtener, en el menor tiempo posible, el permiso de comercialización y así incrementar el tiempo monopólico de ventas de los nuevos medicamentos. En este contexto, los autores describen la forma en que las farmacéuticas innovadoras acortan el tiempo de ejecución de los ensayos en América Latina y las consecuencias en la calidad de los datos que se obtienen, en la protección de los derechos humanos de los sujetos de experimentación, y en el cumplimiento de los principios éticos aprobados en las declaraciones universales.(AU)

This article explains the difficulties innovative pharmaceutical firms have in repaying shareholders with attractive dividends. The problem is the result of the expiration of the patents of blockbuster drugs and the difficulties that the firms have in bringing new blockbuster drugs to the market. One of the solutions companies have found has been to accelerate the implementation of clinical trials in order to expedite the commercialization of new drugs. Doing so increases the period in which they can sell drugs at monopoly prices. We therefore discuss how innovative pharmaceutical firms shorten the implementation time of clinical trials in Latin America and the consequences such actions have on the quality of the collected data, the protection of human rights of the subjects of experimentation, and compliance with the ethical principles approved in international declarations.(AU)

El impacto de los investigadores fieles a la industria farmacéutica en la ética y la calidad de los ensayos clínicos realizados en Latinoamérica / The impact of researchers loyal to Big Pharma on the ethics and quality of clinical trials in Latin America

Este artículo explica las dificultades que tienen las farmacéuticas innovadoras para retribuir a sus accionistas con dividendos atractivos. El problema es el resultado de la caducidad de las patentes de los medicamentos estrella (blockbusters) y las dificultades que tienen en desarrollar nuevos medicamentos estrella. Una solución que las empresas han encontrado es acelerar la ejecución de los ensayos clínicos para obtener, en el menor tiempo posible, el permiso de comercialización y así incrementar el tiempo monopólico de ventas de los nuevos medicamentos. En este contexto, los autores describen la forma en que las farmacéuticas innovadoras acortan el tiempo de ejecución de los ensayos en América Latina y las consecuencias en la calidad de los datos que se obtienen, en la protección de los derechos humanos de los sujetos de experimentación, y en el cumplimiento de los principios éticos aprobados en las declaraciones universales.

This article explains the difficulties innovative pharmaceutical firms have in repaying shareholders with attractive dividends. The problem is the result of the expiration of the patents of blockbuster drugs and the difficulties that the firms have in bringing new blockbuster drugs to the market. One of the solutions companies have found has been to accelerate the implementation of clinical trials in order to expedite the commercialization of new drugs. Doing so increases the period in which they can sell drugs at monopoly prices. We therefore discuss how innovative pharmaceutical firms shorten the implementation time of clinical trials in Latin America and the consequences such actions have on the quality of the collected data, the protection of human rights of the subjects of experimentation, and compliance with the ethical principles approved in international declarations.

The evaluation of complex clinical trial protocols: resources available to research ethics committees and the use of clinical trial registries--a case study.

OBJECTIVES: To assess the potential role of clinical trial (CT) registries and other resources available to research ethics committees (RECs) in the evaluation of complex CT protocols in low-income and middle-income countries. METHODOLOGY: Using a case study approach, the authors examined the decision-making process of a REC in Argentina and its efforts to use available resources to decide on a complex protocol. We also analysed the information in the USA and other CT registries and consulted 24 CT experts in seven countries. FINDINGS: Information requested by the Argentinean REC from other national RECs and ethics' experts was not useful to verify the adequacy of the REC's decision whether or not to approve the CT. The responses from the national regulatory agency and the sponsor were not helpful either. The identification of international resources that could assist was beyond the REC's capability. The information in the USA and other CT registries is limited, and at times misleading; and its accuracy is not verified by register keepers. DISCUSSION AND CONCLUSION: RECs have limited access to experts and institutions that could assist them in their deliberations. Sponsors do not always answer RECs' request for information to properly conduct the ethical and methodological assessment of CT protocols. The usefulness of the CT registries is curtailed by the lack of appropriate codes and by data errors. Information about reasons for rejection, withdrawal or suspension of the trial should be included in the registries. Establishing formal channels of communication among national and foreign RECs and with independent international reference centres could strengthen the ethical review of CT protocols.