There is no other solution like VCT

The Quiet ROI of Cleaner Enrollment: Verified Clinical Trials and Duplicate Subjects in Clinical Trials

Verified Clinical Trials: The global research subject database Most discussions about clinical trial economics start with big, visible levers: Those all matter. But there’s another lever that’s usually underplayed in financial models—precisely because it’s quiet and hard to see: The quality of who you actually randomize. Not just how many participants you enroll, but how …

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The Overbooked Patient Pool: Professional Patients, Duplicate Subjects, and a New Risk in Crowded Clinical Trials

In the hottest therapeutic areas today, it can feel like everyone is looking at the same recruitment map. GLP-1 and obesity. CNS and psychiatry. Dermatology. Vaccines. Rare diseases in concentrated geographies. Sponsors design different protocols, contract with different CROs, choose different sites—and yet, in practice, they’re often competing for the same limited patient pools at …

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Prevented Risk: The KPI Sponsors Haven’t Been Tracking — Verified Clinical Trials and Duplicate Subjects in Clinical Trials

Clinical trials have never been better measured — and never more vulnerable to the risks that metrics don’t capture. Sponsors are excellent at tracking what happened: enrollment velocity, screen-failure rates, protocol deviations, data queries, adverse events, and time to database lock. These are essential operational and quality signals. But as therapeutic areas become more competitive …

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Data-Driven Proof: Revealing the True Incidence of Duplicate Subjects and Professional Patients in Clinical Trials

In today’s clinical research landscape, data integrity and subject safety are paramount — yet both remain at risk from a persistent and often invisible problem: duplicate and professional research participants. Across thousands of studies and millions of verifications, Verified Clinical Trials (VCT) has amassed the largest global dataset on subject duplication and protocol violations in …

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The Top Five Safeguards Against Professional Patients and Duplicate Subjects in Clinical Trials

Clinical trials face an often-overlooked but critical threat: professional patients and duplicate subjects in clinical trials. These individuals move between studies—sometimes across different sponsors, therapeutic areas, or even countries—putting patient safety, data integrity, and trial outcomes at risk. Unfortunately, most traditional methods of protection fall short: These approaches are like putting a band-aid on a …

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Preventable Failures in GLP-1 and Obesity Clinical Trials: How VCT Protects Against Professional Research Subjects and Duplicate Enrollment

You never want to see a clinical trial fail. The consequences are enormous: And yet, many of these failures are preventable. A recent article highlighted a trial with unusually high discontinuation rates, particularly in the placebo group. Analysts were “puzzled.” I wasn’t. If a participant isn’t losing weight and suspects they’re on placebo, they can …

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Beyond Their Lane: How Verified Clinical Trials Detects Cross-Therapeutic Duplicate Subjects In Clinical Trials

In the clinical research world, it’s easy to assume that participants stay in their lane—only enrolling in studies within the same therapeutic area. The reality is far different. Research subjects often cross over between very different indications, creating hidden risks for trial integrity, data quality, and participant safety. These situations aren’t limited to professional subjects …

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