Lawton Julia, White David, Rankin David, Elliott Jackie, Taylor Carolin, Cooper Cindy, Heller Simon, Hallowell Nina
Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK.
Clinical Trials Research Unit, University of Sheffield, Sheffield, UK.
Trials. 2017 Feb 7;18(1):61. doi: 10.1186/s13063-017-1813-y.
The ending of a clinical trial may be challenging, particularly if staff are required to withdraw the investigated treatment(s); however, this aspect of trial work is surprisingly under-researched. To address this gap, we explored the experiences of staff involved in closing out a trial that entailed withdrawal of treatment (insulin pumps) from some patients.
Interviews were conducted with n = 22 staff, recruited from seven trial sites. Data were analysed thematically.
Staff described a myriad of ethical and emotional challenges at closeout, many of which had been unforeseen when the trial began. A key challenge for staff was that, while patients gave their agreement to participate on the understanding that pump treatment could be withdrawn, they often found themselves benefitting from this regimen in ways they could not have foreseen. Hence, as the trial progressed, patients became increasingly anxious about withdrawal of treatment. This situation forced staff to consider whether the consent patients had given at the outset remained valid; it also presented them with a dilemma at closeout because many of those who had wanted to remain on a pump did not meet the clinical criteria required for post-trial funding. When deciding whether to withdraw treatment, staff not only had to take funding pressures and patient distress into account, but they also found themselves caught between an ethic of Hippocratic individualism and one of utilitarianism. These conflicting pressures and ethical considerations resulted in staff decision-making varying across the sites, an issue that some described as a further source of ethical unease. Staff concluded that, had there been more advanced planning and discussion, and greater accountability to an ethics committee, some of the challenges they had confronted at closeout could have been lessened or even prevented.
The same kinds of ethical issues that may vex staff at the beginning of a trial (e.g. patients having unrealistic expectations of trial participation; staff experiencing conflicts between research and clinical roles) may re-present themselves at the end. To safeguard the wellbeing of staff and patients, greater planning, coordination and ethical oversight should go into the closeout of trials involving withdrawal of treatment(s).
International Standard Randomised Controlled Trials Number (ISRCTN) Registry, ISRCTN61215213 . Registered on 11 May 2011.
临床试验的结束可能具有挑战性,尤其是当工作人员需要停止所研究的治疗方法时;然而,试验工作的这一方面却惊人地缺乏研究。为了填补这一空白,我们探讨了参与结束一项涉及部分患者停止治疗(胰岛素泵)试验的工作人员的经历。
对从7个试验地点招募的22名工作人员进行了访谈。对数据进行了主题分析。
工作人员描述了试验结束时众多的伦理和情感挑战,其中许多在试验开始时是无法预见的。工作人员面临的一个关键挑战是,虽然患者在理解泵治疗可以停止的情况下同意参与试验,但他们常常发现自己以意想不到的方式从这种治疗方案中获益。因此,随着试验的进行,患者对停止治疗越来越焦虑。这种情况迫使工作人员考虑患者最初给予的同意是否仍然有效;这也在试验结束时给他们带来了两难境地,因为许多想继续使用泵的患者不符合试验后资助所需的临床标准。在决定是否停止治疗时,工作人员不仅要考虑资金压力和患者的痛苦,而且发现自己陷入了希波克拉底个人主义伦理和功利主义伦理之间的困境。这些相互冲突的压力和伦理考量导致各试验地点工作人员的决策各不相同,一些人将这个问题描述为伦理不安的另一个根源。工作人员得出结论,如果有更充分的规划和讨论,以及对伦理委员会更强的问责制,他们在试验结束时所面临的一些挑战本可以减轻甚至避免。
在试验开始时可能困扰工作人员的同样类型的伦理问题(例如患者对试验参与抱有不切实际的期望;工作人员经历研究和临床角色之间的冲突)可能在试验结束时再次出现。为了保障工作人员和患者的福祉,在涉及停止治疗的试验结束阶段应进行更充分的规划、协调和伦理监督。
国际标准随机对照试验编号(ISRCTN)注册库,ISRCTN61215213。于2011年5月11日注册。