G2 Vendor Directory

Castor vs. OpenClinica

A side-by-side comparison based on G2 review data.

MetricCastor

by Castor EDC

OpenClinica

by OpenClinica

Overall rating4.64.2
Review count12624
Ease of use9.47.9
Ease of setup8.98.1
Quality of support9.38.6
Meets requirements9.38.8
NPS75.237.5
Small Business48.4%45.8%
Mid-Market15.9%29.2%
Enterprise35.7%25.0%
Total page views332116
Total LLM citations2,196778

Castor

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.

Pros

  • Ease of Use
  • Navigation Ease
  • Data Management
  • Design Ease
  • Organization
  • Setup Ease

OpenClinica

The OpenClinica Enterprise Edition is an enhanced, fully-supported build that is ideal for mission-critical settings.

Pros