Centre for the Development of Best Practices in Health (CDBPH), Yaoundé Central Hospital, Yaoundé, Cameroon.
Trials. 2011 Jun 9;12:145. doi: 10.1186/1745-6215-12-145.
Conducting clinical trials in developing countries often presents significant ethical, organisational, cultural and infrastructural challenges to researchers, pharmaceutical companies, sponsors and regulatory bodies. Globally, these regions are under-represented in research, yet this population stands to gain more from research in these settings as the burdens on health are greater than those in developed resourceful countries. However, developing countries also offer an attractive setting for clinical trials because they often have larger treatment naive populations with higher incidence rates of disease and more advanced stages. These factors can present a reduction in costs and time required to recruit patients. So, balance needs to be found where research can be encouraged and supported in order to bring maximum public health benefits to these communities. The difficulties with such trials arise from problems with obtaining valid informed consent, ethical compensation mechanisms for extremely poor populations, poor health infrastructure and considerable socio-economic and cultural divides. Ethical concerns with trials in developing countries have received attention, even though many other non-ethical issues may arise. Local investigator initiated trials also face a variety of difficulties that have not been adequately reported in literature. This paper uses the example of the Cameroon Mobile Phone SMS trial to describe in detail, the specific difficulties encountered in an investigator-initiated trial in a developing country. It highlights administrative, ethical, financial and staff related issues, proposes solutions and gives a list of additional documentation to ease the organisational process.
在发展中国家开展临床试验,常常给研究人员、制药公司、赞助商和监管机构带来重大的伦理、组织、文化和基础设施方面的挑战。从全球范围来看,这些地区在研究中的代表性不足,但由于这些地区的健康负担比资源丰富的发达国家更重,因此从这些环境中的研究中获益更多。然而,发展中国家也为临床试验提供了一个有吸引力的环境,因为它们通常拥有更大的、未经治疗的人群,疾病发病率更高,疾病更处于晚期。这些因素可以降低招募患者所需的成本和时间。因此,需要在鼓励和支持研究的同时找到平衡,以便为这些社区带来最大的公共卫生效益。这类试验中出现的困难源于获得有效知情同意的问题、极度贫困人群的伦理补偿机制、薄弱的卫生基础设施以及巨大的社会经济和文化鸿沟。虽然可能会出现许多其他非伦理问题,但发展中国家试验中的伦理问题已经受到关注。当地研究者发起的试验也面临着各种尚未在文献中充分报道的困难。本文以喀麦隆手机短信试验为例,详细描述了在发展中国家开展研究者发起的试验中遇到的具体困难。它强调了行政、伦理、财务和人员相关问题,提出了解决方案,并列出了其他一些便于组织工作的文件。