Contract Research Organization (CRO)
What a definition is not
A definition is SPEQ’s plain-language decode of how a term is used in practice, cited to the documents that define it. It is a practitioner reference, not legal or regulatory advice, it does not replace the definition in the source, and where a regulator’s wording differs the regulator’s wording governs.
A person or organization contracted by the sponsor to perform one or more trial-related duties and functions that would otherwise be the sponsor’s responsibility, such as monitoring, data management, or safety case processing. Any transferred duty must be specified in writing, and the sponsor retains ultimate responsibility for the quality and integrity of the trial data.
CRO services commonly include site identification and monitoring, clinical data management, biostatistics, pharmacovigilance case intake and processing, and regulatory submissions support — effectively any function a sponsor is permitted to delegate under GCP.
The transfer of obligations must be documented in a written agreement that specifies exactly which duties move to the CRO; anything not explicitly transferred remains the sponsor’s responsibility by default. Sponsor oversight of CRO performance is itself a GCP obligation, not an optional courtesy.
Because a CRO is performing sponsor functions, regulators can and do audit CRO facilities, systems, and records directly as part of a sponsor inspection — good CRO oversight documentation is therefore inspectable in its own right.
- —Delegation must be documented in a written agreement specifying exactly which obligations transfer.
- —The sponsor remains accountable and must actively oversee CRO performance, not merely contract and forget.
- —Typical CRO functions include monitoring, clinical data management, pharmacovigilance case processing, and regulatory submissions support.
- —Inspectors may audit CRO facilities and records directly as part of a sponsor inspection.
ICH E6(R3) GCP, Section 5.2 (Trial-Related Duties and Functions That May Be Transferred to a CRO); 21 CFR 312.52 (Transfer of Obligations to a Contract Research Organization)
Frequently asked questions
What is Contract Research Organization (CRO)?
A person or organization contracted by the sponsor to perform one or more trial-related duties and functions that would otherwise be the sponsor’s responsibility, such as monitoring, data management, or safety case processing. Any transferred duty must be specified in writing, and the sponsor retains ultimate responsibility for the quality and integrity of the trial data.
Which regulations cover Contract Research Organization (CRO)?
ICH E6(R3) GCP, Section 5.2 (Trial-Related Duties and Functions That May Be Transferred to a CRO); 21 CFR 312.52 (Transfer of Obligations to a Contract Research Organization)