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Castor Product Spotlight: New On-site ePRO
Watch this on-demand Product Spotlight to see Castor’s On-site ePRO in action. Our experts show how on-site capture...
Navigating the eCOA Vendor Landscape: What Clinical Teams Really Need to Know
The eCOA market reached $2.27 billion in 2025 with 16.1% projected growth, yet vendor selection remains critical for...
Optimizing eCOA in Oncology Trials: Patient-Focused Data Capture for Cancer Research
Oncology leads clinical innovation with 7,747 trials registered through 2022, yet only 7% of cancer patients participate. This...
ePRO, eCOA 101: Everything You Need to Know About ePRO and eCOA
Electronic Clinical Outcome Assessment (ECOA) and electronic Patient Reported Outcomes (ePRO) represent far more than digital surveys in...
Why eCOA Still Fails in Clinical Trials: Practical Strategies to Fix Baseline Data Problems
Electronic clinical outcome assessments (eCOA) were supposed to solve data quality and amplify the patient voice. Yet missing...
Broken at Baseline: Why eCOA Fails in the Real World (and Why We Don’t Talk About It)
Why are baseline PROs still going uncaptured in 2025? Join Ari Gnanasakthy, Katja Rudell & Derk Arts to...
The New Standard in Participant-Centric Trials: What Castor’s 2025 Updates Reveal About the Future of Clinical Research
Explore how Castor’s 2025 updates reduce site burden and boost compliance through scalable, flexible DTP workflows.
Do Patients Really Understand Clinical Trials?
Poor comprehension of informed consent disrupts trials. Here’s how to fix it—with data, tech, and actual patient understanding.
Why a Life Sciences Museum Matters—And What It Can Teach Us About the Future of Medicine
What a Museum of Medicine can teach us about trials, trust, and how the public sees (or doesn’t...
Castor Steps Up to Preserve Critical Research Amid NIH Funding Cuts
Castor has announced free access to its clinical trial technology platform for U.S. researchers impacted by recent NIH...
Participant View eCOA | ePRO
Reduce participant and site burden with a simple 2 step onboarding and user-friendly app. Secure questionnaires via email...
eCOA/ePRO factsheet
Download our ePRO/eCOA factsheet to view an overview of our services.
Strategies to Minimize Participant and Healthcare Provider Burden in Clinical Trials
This article examines strategies to reduce participant and provider burden in clinical trials while ensuring high-quality data collection....
2024: Castor Year in Review
As we close the year, the Castor team shares vital milestones the company has achieved to make patient-centric...
eCOA Evolution: Have We Overcomplicated What Used to Work?
A blueprint for engineering elegant eCOA solutions that make complex trials feel simple.
Unlocking FDA’s Vision for PRO Collection in RWE: Timing, Methods, and Insights
Discover FDA's guidance on collecting PROs for Real-World Evidence (RWE), focusing on timing, methods, and improving data quality.
FDA’s Vision on PRO/eCOA Collection for RWE: Timing and Methods Explained
Watch back as our panel of experts discuss how the FDA views the collection of patient-reported outcomes for...
Castor Product Spotlight: What’s new in 2024?
In this on-demand webinar, we delve into the latest product updates on eCOA, data entry, reports, and dashboards....
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