Which responsibility is NOT typically assigned to a sponsor?

The responsibility of maintaining records of receipt, use, and disposition of investigational products is typically not assigned to the sponsor but rather to the investigational sites or clinical trial researchers. Sponsors play a crucial role in overseeing the broader aspects of clinical trials, such as ensuring compliance with regulatory requirements, conducting certain strategic elements of the trial, and providing necessary resources.

The sponsor is primarily focused on the overall management of the clinical trial, which includes ensuring that the trial complies with applicable regulations, ethical considerations, and protecting participant safety. While the sponsor may set guidelines for record-keeping, the actual operational task of maintaining detailed records is generally expected to be handled by the clinical trial sites responsible for managing the investigational products directly. As such, option A does not align with typical sponsor responsibilities.