Prelude EDC vs. Castor

Prelude is the only R&D platform built exclusively for animal health and nutrition. Purpose-built for the complexity of animal studies, it gives sites and investigators the industry's most flexible, user-friendly EDC, and automates 90%+ of data management work. Founded in 2003, Prelude built one of the first eSource/EDC systems designed for complex studies without sacrificing a clean, simple experience for sites and investigators. Today it's a full eClinical platform includes: EDC, ePRO, eConsent, RTSM, and medical coding.

Castor is a leading cloud-based clinical data platform designed to democratize research and streamline the complexities of decentralized, hybrid, and traditional clinical trials. Trusted by academic institutions, biotech, and pharmaceutical companies worldwide, Castor enables researchers to capture high-quality data and accelerate study timelines through a modular, human-centered ecosystem.