Hi all,
I still do not feel it is clear what identifiable data is permitted to be held within the ISF, and what must be retained separately.
For example, must CRF data (containing subject ID) be retained separately from the subject list (identity – subject ID)? And if this is the case, what are the separation requirements? Can, for example, ID lists simply be retained in an envelope, and clearly marked as identifiable data, and then stored alongside CRF data within an ISF?
The same question applies for source data. Where source data is first recorded for the purposes of a research study (ie, captured in a source data sheet), and where the source data is not relevant to the clinical care of the participant (& therefore need not retained in the medical records), can the source data sheet be held in the ISF? Does it matter if a source data sheet contains PID?
It was my understanding that as this is being retained by the investigator site under secure conditions (eg, access controls in place, etc), then it would not matter if identifiable data was retained within the ISF.
I note that GCP R2 states ‘Documents containing direct identifiers of trial subjects, such as the subject medical files, the identification code list and informed consent forms, should be maintained separately by and under the control of the investigator/institution’, yet it is not clear exactly what this entails. This statement has been removed from GCP R3 - there is no mention of separation of documents containing identifying information.
Grateful for any advice or guidance.