Where is information on storage requirements for the investigational product usually found?

Information on storage requirements for the investigational product is typically found in the study protocol. The study protocol is a comprehensive document that outlines the objectives, design, methodology, statistical considerations, and organization of a clinical trial. It serves as a crucial reference for investigators and study personnel, detailing not only the procedures for conducting the trial but also specifications regarding the investigational product, including its proper storage conditions. Ensuring the investigational product is stored according to specified requirements is vital for maintaining its integrity, stability, and efficacy throughout the study period.

The other options do not generally provide comprehensive information about storage requirements. The drug accountability log primarily tracks the receipt, dispensing, and return of the investigational product, the case report form directions focus on data collection and reporting processes, and the product code-breaker label is typically used for unblinding purposes rather than detailed storage conditions.