Assessment of consent models as an ethical consideration in the conduct of prehospital ambulance randomised controlled clinical trials: a systematic review

Armstrong, Stephanie and Langlois, Adele and Laparidou, Despina and Dixon, Mark and Appleton, Jason P. and Bath, Philip |M. and Snooks, Helen and Siriwardena, Niro (2017) Assessment of consent models as an ethical consideration in the conduct of prehospital ambulance randomised controlled clinical trials: a systematic review. BMC Medical Research Methodology, 17 (142). ISSN 1471-2288

Full content URL: http://dx.doi.org/10.1186/s12874-017-0423-4

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Abstract

Background: We sought to understand the main ethical considerations when conducting clinical trials in the prehospital ambulance based setting.
Methods: A systematic review of the literature on randomised controlled trials in ambulance settings was undertaken. A search of eight databases identified published studies involving recruitment of ambulance service users. Four independent authors undertook abstract and full-text reviews to determine eligibility and extract relevant data. The data extraction concentrated on ethical considerations, with any discussion of ethics being included for further analysis. The resultant data were combined to form a narrative synthesis.
Results: In all, 56 papers were identified as meeting the inclusion criteria. Issues relating to consent were the most significant theme identified. Type of consent differed depending on the condition or intervention being studied. The country in which the research took place did not appear to influence the type of consent, apart from the USA where exception from consent appeared to be most commonly used. A wide range of terms were used to describe consent.
Conclusions: Consent was the main ethical consideration in published ambulance based research. A range of consent models were used ranging from informed consent to exception from consent (waiver of consent). Many studies cited international guidelines as informing their choice of consent model but diverse and sometimes confused terms were used to describe these models. This suggests that standardisation of consent models and the terminology used to describe them is warranted.

Keywords:ethics, consent, ambulance, prehospital, clinical trials
Subjects:B Subjects allied to Medicine > B990 Subjects Allied to Medicine not elsewhere classified
A Medicine and Dentistry > A990 Medicine and Dentistry not elsewhere classified
Divisions:College of Social Science > School of Health & Social Care
ID Code:28783
Deposited On:28 Sep 2017 11:12

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