ARO-CRO Model in Clinical Trials

Definition & overview

• ARO-CRO model — a hybrid trial-conduct structure in which an Academic Research Organization (ARO) supplies independent academic leadership and scientific oversight while a Contract Research Organization (CRO) supplies operational infrastructure and execution capacity for a (usually large, industry-sponsored) clinical trial — the two operating as a defined partnership rather than as substitutes.
• CRO (ICH-GCP E6(R2) §1.20) — "a person or an organization (commercial, academic, or other) contracted by the sponsor to perform one or more of a sponsor's trial-related duties and functions" — an outsourced agent acting under the sponsor's authority.
• ARO — a university-based, academic and/or non-profit entity performing one or more trial-conduct functions — from academic leadership alone to full-service management (protocol design, monitoring, data management, statistical analysis, safety monitoring, endpoint adjudication).
• Why it exists — it answers a governance problem — how to retain credible, independent academic oversight and data integrity in trials that are commercially sponsored and operationally run by for-profit vendors.
• Sponsor stays accountable (ICH-GCP §5.2) — a sponsor may transfer any or all trial-related duties to a CRO, but "the ultimate responsibility for the quality and integrity of the trial data always resides with the sponsor"; any transferred duty must be specified in writing.