- Retrospective / Prospective studies
- Pragmatic trials
- Phase IV / Post-marketing studies
- Registries
- Digital-friendly and remote trials
Real-world evidence
Castor streamlines real-world evidence generation with a modern, end-to-end platform—boosting data quality, reducing costs, and accelerating insights for regulatory, market access, and safety decisions.
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Purpose-built tech that flexes with your study
Launch and scale your RWE study fast with Castor’s modern clinical research platform-designed to handle complex, global datasets without slowing you down. Recruit participants from anywhere using video-enabled informed eConsent and customized landing pages. Our recent RWE study enrolled and screened over 2000 participants in less than 6 months.
Every interaction, designed for retention
Castor’s ePRO experience mirrors the simplicity of everyday apps-no training needed. Participants can log in, complete activities, and access study materials in just a few taps, whether on web or mobile. Built-in multimedia content supports education and compliance across diverse populations, helping you boost retention and reduce dropout risk.
Real-world data, built in from day one
Castor makes it easy to integrate EHR and claims data into your study. Through partnerships with leading tokenization and EHR vendors, we help you capture longitudinal insights at scale. From 50 to 20,000 patients, 1 to 600 sites, Castor powers flexible study designs that deliver high-quality evidence-backed by experience across 1,100+ RWE projects.
One Platform. Every RWE Study Design.
Observational Studies
Generate meaningful real-world evidence with Castor’s support for both retrospective and prospective observational studies.
Leverage existing EHR, claims, and registry data, or collect new insights directly from patients using eConsent, ePRO, and remote monitoring—without heavy site burden.
Our platform makes it easy to scale globally and deliver high-quality data for regulatory and clinical use.
Post-Marketing Surveillance (Phase IV Studies)
Track safety, effectiveness, and long-term outcomes in real-world settings. Castor’s platform supports compliant data collection and patient engagement strategies to meet both regulatory and payer demands.
Patient Registries
Support long-term follow-up for specific diseases, therapies, or populations. Castor provides scalable infrastructure for continuous data collection, remote patient engagement, and outcome tracking.
Chart Reviews
Efficiently extract structured data from electronic medical records for retrospective analysis. Castor ensures secure, compliant data handling across multi-site and multi-country studies, and complements EMR data with direct-to-participant tools to validate findings, capture missing information, and strengthen your real-world evidence.
On a single RWE project, Castor has supported 780k patients, up to 600 sites, and up to 5000 HCPs
7 of the top 10 pharma use Castor
1100
RWE projects completed
90+
Countries worldwide
>90%
Compliance rates
4-8
Week deployment time
Castor have become one of our most trusted partners over the past six years for our non-interventional studies. For both our retrospective and prospective RWE methodologies, Castor is an ever-evolving, highly robust yet user-friendly platform which is very well received by both sites and sponsors. The technical team are highly adept at finding novel solutions for EDC builds, while the customer services team consistently do an excellent job of ensuring timelines are met and the team are well supported from study kick-off to close.
Castor offers 1 platform where data from all channels are integrated in real-time
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Supported Study Types
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Platform Capabilities
- Patient-mediated FHIR integration
- eConsent, Direct to Patient (ePRO/eCOA)
- Tokenization & linkage support
- Real-time data monitoring
- Flexible protocol design
- Regulatory compliance: 21 CFR Part 11, HIPAA, GDPR
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Sponsor Benefits
- Faster time to insights
- Improved data quality
- Lower study costs
- Enhanced patient engagement
- Scalable global deployment
Experience each stage of the process from the patient perspective.
Explore Castor's RWE-Ready Modules
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eConsent for RWE
Recruit | Consent
Enable end-to-end onboarding to engage, pre-screen and enroll participants.
- Televisits
- Pre-screen surveys
- Tailor-made recruitment landing pages
- Multimedia educational materials + quizzes
- Simple re-consenting
- Multilingual support
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CDMS for RWE
Collect | Manage
Capture and manage high-quality data with a powerful, real-time platform.
- Flexible forms
- Real-time data validation
- Audit trail
- Unscheduled visits
- Easy import/export
- Real-time dashboards
- Single Sign-On (SSO)
- Open AI
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Direct-to-Participant for RWE
Connect | Engage
Engage participants through mobile-first tools that feel like apps they use every day.
- Web or app-based questionnaires
- Multimodal delivery: email, SMS or WhatsApp
- BYOD with >95% device/browser coverage
- Offline data capture
- Televisits
- Automated reminders
- Participant payments
- Ad-hoc diaries
- Photo uploads
- Multilingual support
- Pre-validated instrument library
- Custom training
Webinar
Achieving Post-Market Success: Harnessing RWE for Accelerated Market Acceptance
Watch our on-demand webinar featuring CVS Healthspire™ Life Sciences Solutions. Real-World Evidence (RWE) is revolutionizing life sciences research by providing additional insights into healthcare utilization, diseases and conditions, and patient outcomes.
Want to know more?
White papers & guides
eConsent Readiness Guide in 24 Countries
Webinar
The impact of ePRO on the patient & site journeys
Blog
Evaluating “Bother” as a Component of Patient-Reported Outcomes in Clinical Studies
Blog
