Plans to promote participant retention and complete follow-up {18b}
CRF
CRF
Data from withdrawn participants is to be included in the analysis outside explicit requirement. In cases of voluntary discontinuation, it should be established whether consent remains for sample storage. Should the consent be withdrawn, the stored sample will be destroyed and the withdrawal noted in the source notes and CRF. The site shall send a sample destruction letter to the laboratory for actioning. The laboratory shall return a copy of the completed destruction letter once the sample has been destroyed.