Which peptides have clinical evidence?
Registered clinical trials for every peptide we cover, counted from the US clinical trial registry. The same measure applied to each, so the answer comes from the data rather than the marketing.
| Peptide | Evidence | Studies | Completed | Highest phase |
|---|---|---|---|---|
| Glucagon | Established clinical evidence | 1534 | 799 | Phase 4 |
| Oxytocin | Established clinical evidence | 938 | 516 | Phase 4 |
| Somatropin | Established clinical evidence | 820 | 394 | Phase 4 |
| Semaglutide | Established clinical evidence | 801 | 285 | Phase 4 |
| Leuprolide | Established clinical evidence | 520 | 226 | Phase 4 |
| Liraglutide | Established clinical evidence | 520 | 317 | Phase 4 |
| Exenatide | Established clinical evidence | 380 | 243 | Phase 4 |
| Octreotide | Established clinical evidence | 328 | 177 | Phase 4 |
| Tirzepatide | Established clinical evidence | 312 | 76 | Phase 4 |
| Teriparatide | Established clinical evidence | 182 | 114 | Phase 4 |
| Dulaglutide | Established clinical evidence | 143 | 88 | Phase 4 |
| Desmopressin | Established clinical evidence | 127 | 65 | Phase 4 |
| Bivalirudin | Established clinical evidence | 92 | 38 | Phase 4 |
| Thymosin alpha-1 | Established clinical evidence | 67 | 23 | Phase 4 |
| Pramlintide | Established clinical evidence | 65 | 43 | Phase 4 |
| Linaclotide | Established clinical evidence | 60 | 39 | Phase 4 |
| Teduglutide | Established clinical evidence | 50 | 34 | Phase 4 |
| Kisspeptin | Established clinical evidence | 36 | 15 | Phase 3 |
| Icatibant | Established clinical evidence | 33 | 21 | Phase 4 |
| Sermorelin | Established clinical evidence | 27 | 19 | Phase 4 |
| Setmelanotide | Established clinical evidence | 27 | 19 | Phase 4 |
| Abaloparatide | Established clinical evidence | 25 | 13 | Phase 4 |
| Tesamorelin | Established clinical evidence | 24 | 13 | Phase 4 |
| LL-37 | Late-stage trials underway | 20 | 5 | Phase 3 |
| Thymosin beta-4 | Established clinical evidence | 18 | 12 | Phase 3 |
| Follistatin | Established clinical evidence | 15 | 7 | Phase 4 |
| Bremelanotide | Established clinical evidence | 10 | 9 | Phase 4 |
| MOTS-c | Early-stage trials only | 5 | 0 | Phase 2 |
| BPC-157 | Early-stage trials only | 4 | 1 | Phase 2 |
| GHK-Cu | Late-stage trials underway | 4 | 1 | Phase 4 |
| Ipamorelin | Early-stage trials only | 3 | 2 | Phase 2 |
| Selank | Early-stage trials only | 2 | 1 | Not applicable |
| CJC-1295 | Early-stage trials only | 1 | 0 | Phase 2 |
| Epitalon | Early-stage trials only | 1 | 0 | Early Phase 1 |
| Melanotan II | Early-stage trials only | 1 | 0 | Phase 2 |
| TB-500 | Early-stage trials only | 1 | 0 | Phase 2 |
| AOD-9604 | No registered clinical trials | 0 | 0 | |
| DSIP | No registered clinical trials | 0 | 0 | |
| GHRP-2 | No registered clinical trials | 0 | 0 | |
| GHRP-6 | No registered clinical trials | 0 | 0 | |
| Hexarelin | No registered clinical trials | 0 | 0 | |
| KPV | No registered clinical trials | 0 | 0 | |
| Semax | No registered clinical trials | 0 | 0 |
Counts are registered studies, not published results. Registration records that a study exists; it is not evidence that a compound works. A peptide with no registered trials has not been formally studied in humans through this registry.
Source: ClinicalTrials.gov API v2, U.S. National Library of Medicine. Last updated 2026-11-09.
Related data
- FDA drug shortage tracker →Which peptide drugs are in shortage now, with the FDA-stated cause
- Which peptides are FDA-approved →Approval status for every peptide, from Drugs@FDA
- When peptide drugs go generic →Patent and exclusivity expiry dates from the FDA Orange Book
- Peptide legality by US state →A sourced verdict for all 50 states
- Peptide legality by country →A sourced verdict for 50 countries
