Intended for healthcare professionals

Letters Data sharing among trialists

What about trialists sharing other study materials?

BMJ 2012; 345 doi: (Published 10 December 2012) Cite this as: BMJ 2012;345:e8352
  1. Rik Crutzen, senior researcher1,
  2. Gjalt-Jorn Y Peters, assistant professor2,
  3. Charles Abraham, professor of behaviour change3
  1. 1Maastricht University/CAPHRI, PO Box 616, 6200 MD Maastricht, Netherlands
  2. 2Open Universiteit, Postbus 2960, 6401 DL Heerlen, Netherlands
  3. 3University of Exeter Medical School, St Luke’s Campus, Exeter EX1 2LU, UK
  1. rik.crutzen{at}

Rathi and colleagues provide insight into clinical trialists’ opinions and experiences of sharing clinical trial data.1 We would like to raise two related matters.

Firstly, this study and previous studies cited within are limited to sharing data. We suggest that questionnaires, intervention manuals, analysis scripts (such as syntax files), output files, and other materials …

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