Peptide Decoding
Reference / Evidence

How much human evidence there is, compound by compound

267 compounds. 42 are approved in the US for at least one use, 5 more were approved and are no longer sold there, and 17 are approved only outside it. Of the rest, 28 have reached phase 3 or later, 29 phase 2 and 6 phase 1. 140 have at least one registered human trial. 93 have a trial with posted results. 122 have no published clinical trial, including 43 with nothing indexed at all. Counted from Europe PMC and trial-registry indexing, last computed October 12, 2026.

Counted from Europe PMC indexing, not read by a person; human includes reviews and cell work, original studies exclude both. A human tag comes from the indexer's subject headings and can land on analytical, commentary or lab papers that mention people; clinical trial publications is the narrower count.

A
ACE-031 (Ramatercept)Research only
Phase 2
results posted · NCT01099761
171410241Records →
ACE-083Investigational
Phase 2
results posted · NCT02927080
983244Records →
ALT-711Research only
Phase 2
completed, no results posted · NCT00043836
16267279130Records →
ARA-290 (Cibinetide)Investigational
Phase 2
results posted · NCT02039687
813818541Records →
AT-7687Investigational
Phase 2
under way · NCT07724340
No phased trial completed yet
4932010Records →
B
BPC-157Research only
Phase 2
under way · NCT07437547
No phased trial completed yet
24157240401Records →
C
CJC-1295 with DACResearch only
Phase 2
stopped early · NCT00267527
No phased trial completed yet
402211210Records →
D
DanuglipronInvestigational
Phase 2
results posted · NCT03985293
76532552011Records →
Davunetide (NAP)Investigational
Phase 2
results posted · NCT00505765
1869142951Records →
E
EfinopegdutideInvestigational
Phase 2
results posted · NCT03486392
252233155Records →
G
GDF-8 (Myostatin)Research only
Phase 2
under way · NCT06299098
No phased trial completed yet
5,09325514517355Records →
GHK-CuSupplement or cosmetic
Phase 2
under way · NCT07437586
No phased trial completed yet
1605334130Records →
GHRP-1Research only
Phase 2
stopped early · NCT00381602
No phased trial completed yet
662417410Records →
GlutathioneSupplement or cosmetic
Phase 2
results posted · NCT03020719
2691177532202Records →
GW501516 (Cardarine)Research only
Phase 2
completed, no results posted · NCT00158899
3511771026306Records →
I
IpamorelinResearch only
Phase 2
completed, no results posted · NCT01280344
692616230Records →
K
KAI-4729Investigational
Phase 2
under way · NCT07660848
Furthest completed: phase 1
550050Records →
L
LL-37Research only
Phase 2
status not updated · NCT04098562
Furthest completed: phase 1
4,57334219733471Records →
M
Melanotan IIResearch only
Phase 2
under way · NCT07437560
No phased trial completed yet
2064835410Records →
MK-677 (Ibutamoren)Research only
Phase 2
results posted · NCT05364684
13781501982Records →
MOTS-cResearch only
Phase 2
under way · NCT07505745
No phased trial completed yet
282147855501Records →
N
NA-931Investigational
Phase 2
completed, no results posted · NCT06564753
630030Records →
P
PF-08653945 (MET-233i)Investigational
Phase 2
under way · NCT07575932
Furthest completed: phase 1
660040Records →
R
RedasemtideInvestigational
Phase 2
completed, no results posted · NCT05953480
Failed when tested for one use
210010Records →
T
TesofensineInvestigational
Phase 2
results posted · NCT02737891
69512311145Records →
TestagenResearch only
Phase 2
not yet recruiting · NCT02733133
No phased trial completed yet
1221010Records →
TrevogrumabInvestigational
Phase 2
completed, no results posted · NCT01963598
15121080Records →
U
Urolithin ASupplement or cosmetic
Phase 2
under way · NCT06022822
Furthest completed: phase 1
1,007280177193622Records →
Z
Zelenectide pevedotinInvestigational
Phase 2
under way · NCT06225596
No phased trial completed yet
15125150Records →
What each column means
Compound
The peptide's name. Click it to open its page.
Status
Where it stands with regulators, such as FDA-approved, investigational or research only. Same label as on its page.
Furthest stage
How far it has got toward approval, from ClinicalTrials.gov and approval records. Phase 1 tests safety in a small group. Phase 3 is the large trial that comes before approval.
Papers and trials indexed
Everything found that names this compound: published papers from Europe PMC plus studies registered on ClinicalTrials.gov.
Papers tagged human
Papers the database labels as involving people. This includes reviews and lab work on human cells, so it runs high.
Original human papers
The column to the left, minus reviews and lab work on human cells. The closest count to original research in people, though it can still include case reports and commentary.
Clinical trial publications
Published papers that report a clinical trial. The strictest count of human evidence on this page. Red means none.
Registered trials
Studies listed on ClinicalTrials.gov that test this compound. A listing alone does not mean the trial finished or reported anything.
Trials with posted results
Registered trials that have posted results on ClinicalTrials.gov. Red means none.
Retraction notices
Papers on this compound that were later retracted. Blank means none found.
Records
Opens the full list of papers and trials for this compound.

Furthest stage is the highest phase of any ClinicalTrials.gov trial in which the compound is the drug being tested, not a comparator. A combined phase 1/2 trial counts as phase 1 and phase 2/3 as phase 2, and withdrawn trials are left out because they never enrolled anyone. Reaching a phase says how far development got, not whether it worked: a phase 3 can fail, and the compound page marks any use that was tested and failed. Approval comes from each compound page and covers at least one use, not every use people take it for. Trials registered only in other registries, such as China's or the EU's, are not read yet.

See also: the research index, the regulatory tracker, and why most peptides have no human evidence.

Common questions

Which compound has the most registered trials?

Gonadorelin (GnRH) (1,164), EPO (Erythropoietin) (1,053) and Letrozole (905).

How many compounds have a trial with posted results?

93 of 267. Most results posted: Dulaglutide (Trulicity) (47), Exenatide (Byetta / Bydureon) (37), Oxytocin (37), Leuprolide (Lupron) (34) and Liraglutide (34).

What does "papers tagged human" mean here?

Counted from Europe PMC indexing, not read by a person; human includes reviews and cell work, original studies exclude both. A human tag comes from the indexer's subject headings and can land on analytical, commentary or lab papers that mention people; clinical trial publications is the narrower count.

Which peptides are approved outside the US but not in it?

Anamorelin (Japan), Beinaglutide (China), Cerebrolysin (45+ countries), Cerebroprotein Hydrolysate (China, India), Cortexin (Russia), Ecnoglutide, Imunofan (Russia), Mazdutide (China), Noopept (Omberacetam) (Russia), Phenibut (Russia), Retinalamin (Russia), Selank (Russia), Semax (Russia), Thymogen (Russia), Thymopentin (TP-5) (Italy, China), Thymosin Alpha-1 (30+ countries) and TUDCA (Italy, Turkey).

What does "furthest stage" mean?

Furthest stage is the highest phase of any ClinicalTrials.gov trial in which the compound is the drug being tested, not a comparator. A combined phase 1/2 trial counts as phase 1 and phase 2/3 as phase 2, and withdrawn trials are left out because they never enrolled anyone. Reaching a phase says how far development got, not whether it worked: a phase 3 can fail, and the compound page marks any use that was tested and failed. Approval comes from each compound page and covers at least one use, not every use people take it for. Trials registered only in other registries, such as China's or the EU's, are not read yet.