Vischer Nerina, Pfeiffer Constanze, Limacher Manuela, Burri Christian
Swiss Tropical and Public Health Institute, Department of Medicines Research, Basel, Switzerland.
University of Basel, Basel, Switzerland.
PLoS One. 2017 Mar 16;12(3):e0173796. doi: 10.1371/journal.pone.0173796. eCollection 2017.
The costs, complexity, legal requirements and number of amendments associated with clinical trials are rising constantly, which negatively affects the efficient conduct of trials. In Sub-Saharan Africa, this situation is exacerbated by capacity and funding limitations, which further increase the workload of clinical trialists. At the same time, trials are critically important for improving public health in these settings. The aim of this study was to identify the internal factors that slow down clinical trials in Sub-Saharan Africa. Here, factors are limited to those that exclusively relate to clinical trial teams and sponsors. These factors may be influenced independently of external conditions and may significantly increase trial efficiency if addressed by the respective teams.
We conducted sixty key informant interviews with clinical trial staff working in different positions in two clinical research centres in Kenya, Ghana, Burkina Faso and Senegal. The study covered English- and French-speaking, and Eastern and Western parts of Sub-Saharan Africa. We performed thematic analysis of the interview transcripts.
We found various internal factors associated with slowing down clinical trials; these were summarised into two broad themes, "planning" and "site organisation". These themes were consistently mentioned across positions and countries. "Planning" factors related to budget feasibility, clear project ideas, realistic deadlines, understanding of trial processes, adaptation to the local context and involvement of site staff in planning. "Site organisation" factors covered staff turnover, employment conditions, career paths, workload, delegation and management.
We found that internal factors slowing down clinical trials are of high importance to trial staff. Our data suggest that adequate and coherent planning, careful assessment of the setting, clear task allocation and management capacity strengthening may help to overcome the identified internal factors and allow clinical trials to proceed more efficiently.
临床试验的成本、复杂性、法律要求以及修正案数量不断上升,这对试验的高效开展产生了负面影响。在撒哈拉以南非洲地区,能力和资金限制使这种情况更加恶化,进一步增加了临床试验人员的工作量。与此同时,试验对于改善这些地区的公共卫生至关重要。本研究的目的是确定撒哈拉以南非洲地区减缓临床试验的内部因素。在此,因素仅限于那些专门与临床试验团队和申办者相关的因素。这些因素可能独立于外部条件受到影响,如果各团队加以应对,可能会显著提高试验效率。
我们对在肯尼亚、加纳、布基纳法索和塞内加尔的两个临床研究中心担任不同职位的临床试验工作人员进行了60次关键 informant访谈。该研究涵盖了撒哈拉以南非洲地区讲英语和法语的地区,以及东部和西部。我们对访谈记录进行了主题分析。
我们发现了与减缓临床试验相关的各种内部因素;这些因素被归纳为两个广泛的主题,即“规划”和“现场组织”。这些主题在不同职位和国家中都被一致提及。“规划”因素涉及预算可行性、明确的项目思路、现实的期限、对试验流程的理解、适应当地情况以及现场工作人员参与规划。“现场组织”因素包括人员流动、就业条件、职业发展路径、工作量、授权和管理。
我们发现减缓临床试验的内部因素对试验工作人员非常重要。我们的数据表明,充分且连贯的规划、对环境的仔细评估、明确的任务分配以及管理能力的加强可能有助于克服已确定的内部因素,使临床试验能够更高效地进行。