Which of the following happens after an investigational study is terminated?

After an investigational study is terminated, the retention of records for two years is required. This requirement ensures that relevant data and documentation remain accessible for potential audits, regulatory submissions, or inquiries related to the study, even after the study is concluded.

Retention of records serves a critical purpose in the context of Good Clinical Practice (GCP) as it supports transparency, accountability, and adherence to regulatory standards. Keeping these records allows sponsors, investigators, and regulatory authorities to review the study's findings and methodologies if necessary.

The other choices do not align with GCP guidelines. Destroying all records would undermine accountability and prevent future reference. Stating that no records need to be kept contradicts the principles of good scientific practice and regulatory compliance. Similarly, submitting records to the FDA immediately might not be appropriate without following specific regulatory procedures and providing context on the findings of the study.