Having a system, or research subject database registry, to proactively detect and prevent duplicate subjects and other protocol violations has become a well recognized and important step to protect the data quality and improve research subject safety. This is NOT limited to phase 1 healthy volunteer studies. This happens with significant frequency across multiple therapeutic indications globally and phases of clinical trials research. COPD, diabetes, overactive bladder (OAB) to vaccine and CNS clinical trials all require protection. With the use of social media and increased awareness of clinical trials the issue of duplicate subjects occurs more and more frequently. VCT is used at the time of screening and the protections continue thru the entire study. Contact VCT at + 1.516.998.7499 or email us at firstname.lastname@example.org to learn more.