Patients are unwilling to enter clinical trials

doi:10.1136/bmj.309.6953.539b

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F Macbeth

Christchurch Hospital, Christchurch, New Zealand.

EDITOR, - T C B Dehn is right to draw attention to the problems of obtaining informed consent from patients entering randomised trials, particularly when one option entails additional, potentially toxic treatment, such as chemotherapy.1 But Dehn's letter also illustrates the problem of avoiding bias when describing a trial: Dehn admits …