Intended for healthcare professionals

Letters Open data for all current drugs

Additional requirements for complex interventions

BMJ 2012; 345 doi: (Published 26 November 2012) Cite this as: BMJ 2012;345:e8003
  1. Thees F Spreckelsen, postdoctoral research officer1,
  2. Sean P Grant, DPhil candidate in evidence based interventions1,
  3. Paul Montgomery, professor of psychosocial intervention1
  1. 1Centre for Evidence Based Intervention, Barnett House, University of Oxford, Oxford OX1 2ER, UK
  1. Thees.Spreckelsen{at}

Similar to drug companies, developers of complex interventions are also liable to conflicts of interest that may bias results. We thus support the BMJ’s decision to “publish only where there is a commitment to make the relevant anonymised patient level data available on reasonable request,”1 and we make suggestions that apply …

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