Consent to research: Right to withdraw from research

30. You must make sure that a participant’s right to withdraw from research is respected. You should consider any sign of objection, distress or indication of refusal, whether or not it is spoken, as implied refusal. Under the Mental Capacity Act 2005 (in England and Wales) you should usually withdraw the participant from the research if the consultee considers that they would wish to be withdrawn. In clinical trials of investigational medicinal products, the legal representative can withdraw the participant from the trial at any time.