Running a successful clinical trial requires precision, compliance, and above all—integrity of your data. One of the greatest threats to this integrity? Professional research subjects and duplicate subjects in clinical trials.
Many sponsors and CROs underestimate the frequency and impact of dual enrollment in clinical trials. Yet, it’s not a matter of if it will happen—it’s how many and how much it will compromise your outcomes. Fortunately, there’s a proven solution to detect and prevent duplicate subjects in clinical trials before it’s too late.
Verified Clinical Trials: The Global Standard in Research Subject Protection
Verified Clinical Trials (VCT) is the largest and most widely adopted research subject database registry in the industry. Used by the majority of top pharmaceutical companies and CROs, VCT is the only global system that proactively detects and prevents duplicate subjects—not just within your trial, but across all trials, all sponsors, and all therapeutic areas.
Unlike limited, siloed solutions, VCT provides cross-sponsor, cross-study protections. At the time of screening, the system alerts investigators of prior participation, helping enforce proper washout periods, identify professional research subjects, and stop dual enrollments before they occur.
Why It Matters
- Professional research subjects often jump from one trial to another, motivated by stipends rather than science. Their participation can skew data, increase placebo effects, and even put themselves at risk.
- Duplicate subjects in research can lead to protocol deviations that compromise safety and efficacy assessments—threatening your ability to meet trial endpoints or regulatory requirements.
- Dual enrollment in clinical trials inflates costs, wastes investigational product, and forces sites to spend valuable time resolving preventable errors.
A Smarter Way to Run Trials
With Verified Clinical Trials, sponsors and CROs benefit from:
- Real-time alerts at screening to prevent ineligible or risky participants from entering your trial
- Significant cost savings from fewer protocol violations, improved screen-fail rates, and reduced time spent on data reconciliation
- Enhanced subject safety through enforcement of I/E criteria and reduced exposure to investigational products
- Streamlined site workflows with a simple, one-touch system requiring minimal training
Join the Global Movement
More than a decade ago, Verified Clinical Trials pioneered this space. Today, it remains the undisputed leader in preventing duplicate subjects in clinical trials. From Phase 1 to Phase 3 studies, across vaccines, CNS, metabolic, oncology, and beyond, VCT continues to protect trials, subjects, and outcomes—globally.
If you’re not using Verified Clinical Trials, you’re leaving your study exposed to risks that can be entirely prevented.
Protect your data. Protect your subjects. Protect your trial.
Contact us today to learn how you can leverage Verified Clinical Trials for your next study.
