Regulatory
ClinicalTrials.gov
The NIH-operated public registry of clinical trials, required for most US research.
Definition
ClinicalTrials.gov registration is a prerequisite for publication in most medical journals. Each record has an NCT number, which is the canonical trial identifier. Peptide trials — semaglutide, tirzepatide, retatrutide — all have NCT numbers.
Related terms
Back to the full peptide glossary.