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Preventing Duplicate Subjects in Clinical Trials: Verified Clinical Trials Leads the Way at ASCP Annual Meeting

The Verified Clinical Trials (VCT) team is excited to attend the 2025 ASCP Annual Meeting, currently taking place in Tucson, Arizona. As the premier event hosted by the American Society of Clinical Psychopharmacology, ASCP brings together global leaders advancing psychiatry and CNS (central nervous system) drug development—and VCT is proud to support that mission.

Verified Clinical Trials is the research subject database of choice for psychiatry and CNS clinical trials, helping leading sponsors and CROs detect and prevent duplicate subjects and professional research subjects at the time of screening. These issues can quietly erode data quality, patient safety, and trial timelines. VCT provides a proven solution across all phases of research—from Phase 1 units through Phase 4 trials.

What sets VCT apart?

  • Unmatched Scale: VCT hosts the largest cross-sponsor research subject database of its kind in the world.
  • Global Coverage: Actively used in over 40 countries, our solution is trusted internationally.
  • Broad Therapeutic Reach: While CNS remains a critical area of protection, VCT supports cross-therapeutic area coverage.
  • End-to-End Protection: Our protections span the entire clinical trial lifecycle, from early-stage trials to post-marketing studies.
  • Certified Security: VCT is the only subject registry ISO 27001-certified, ensuring industry-leading data protection and regulatory alignment.
    Read about our ISO 27001 certification here

CNS and psychiatry trials are especially vulnerable to duplicate enrollment and professional subjects—individuals who misrepresent their history to enroll in multiple studies. These risks are amplified by high subject demand, limited study populations, and overlapping inclusion criteria.

By implementing Verified Clinical Trials’ protections, sponsors and sites gain a powerful layer of subject safety and data integrity, driving success across all therapeutic indications.