Clinical Trial Invitation: How to Check the Study Record

Ask for the registry and study identifier. Open that registry independently; compare the title, purpose and institution where provided. A matching number does not verify who sent the invitation.

If the invitation names ClinicalTrials.gov, NIH states that a listing there does not mean the US federal government has evaluated the study. An unresolved mismatch needs clarification, not an automatic fraud verdict.

ClinicalTrials.gov separates study-wide information from Contacts and Locations. This section gives sites and contacts when available. A study's recruitment label does not confirm local availability.

Contact the institution through its official website, opened independently, to confirm the invitation and site. Contacts can be missing or outdated; a record update does not confirm local recruitment.

Registration, ethics review and your participation assessment are separate questions. Ask the study team to explain its review arrangements, what research adds to ordinary care, possible harms and uncertain benefits, alternatives, and actual costs or travel commitments. The team must assess eligibility; do not alter your medical history to fit.

Discuss the proposal with your usual clinician, including effects on current care. Do not delay time-sensitive care or change medicines to qualify on your own. An informed-consent discussion, not a registry match, explains the study before you decide.

An unsolicited link or study number is not permission to send medical, identity or payment information. Clarify the institution's private enquiry process first. Do not post those documents on SameCase. These are original checking prompts, not a validated safety screen or a recommendation to join.