Public record
Melatonin: the public record
Each table is computed from the named federal dataset as of its data date; the method is under each one.
Clinical studies
Registered clinical studies of melatonin
ClinicalTrials.gov lists 728 registered studies that name melatonin as an intervention as of 2026-11-11. Of these, 89 are recruiting, 369 are completed and 100 are phase 3 studies.
| Measure | Value |
|---|---|
| Registered studies | 728 |
| Recruiting now | 89 |
| Not yet recruiting | 28 |
| Completed | 369 |
| Terminated, withdrawn or suspended | 64 |
| Phase 3 (including phase 2/3) | 100 |
| Phase 2 (including phase 1/2) | 120 |
| Phase 1 | 55 |
How this was calculated
Searched the ClinicalTrials.gov intervention field for the name, downloaded every matching record and counted by overall status and phase. Combined phases are counted under the higher phase. Phase not applicable covers observational, device and behavioural studies.
Studies whose intervention field matches melatonin, any condition, any country, all statuses
A registered study is not a result. Counts include studies where the drug is a comparator or background treatment, and studies that never finished or reported.