What changed?

Peptide Research & Clinical Development Updates

Follow material changes recorded in BACToBasics: new curated research sources, trial readouts, phase advancements, regulatory submissions, approvals, and development-status changes. Every public timeline is generated from the same update records that power the Follow Updates inbox.

Compound timelines

23

Research records represented

30

Development entries represented

26

Latest recorded activity

Recent changes and additions

A research-source addition is not the same thing as a regulatory or clinical-development change. The labels below keep those event types separate.

Development snapshotVerified 2026-09-05

Historical Phase 2 obesity-development program; no approved product followed.

AOD-9604 · Phase 2 (historical) · Historical clinical development

AOD-9604 advanced into human obesity development through Phase 2-era studies, but the obesity program did not establish the efficacy needed to become an approved treatment and did not progress to approval.

Development snapshotVerified 2026-09-05

Limited exploratory human evidence; no validated late-stage therapeutic program identified.

BPC-157 · Exploratory human evidence · No established development program

BPC-157 has very limited reported human exposure, but there is no established modern clinical-development program demonstrating progression through conventional Phase 1, 2, and 3 milestones.

Development snapshotVerified 2026-09-05

Small double-blind insomnia studies reported weak or inconsistent clinical effects.

DSIP · Early human studies (historical) · Historical clinical development

DSIP was tested in small controlled human sleep studies decades ago, but the work predates a modern late-stage drug-development program and did not produce an approved therapy.

Development snapshotVerified 2026-09-05

No established modern Phase 1–3 therapeutic program identified.

Epitalon · Preclinical / no established modern program · No established development program

Modern evidence for epitalon is dominated by laboratory, cell, and mechanistic work rather than a validated contemporary clinical-development pathway leading toward regulatory approval.

Development snapshotVerified 2026-09-05

Small randomized topical study after CO2 laser resurfacing.

GHK-Cu · Early human evidence — topical route · No established development program

GHK-Cu has small human studies in topical/cosmetic contexts, but that route-limited evidence does not establish an injectable clinical-development program.

Development snapshotVerified 2026-09-05

Longstanding FDA-licensed prescription products including Pregnyl.

HCG · Approved · Approved

HCG is an established prescription glycoprotein hormone with FDA-licensed products and indication-specific medical use in reproductive endocrinology and selected hypogonadism-related settings.

Development snapshotVerified 2026-09-05

No established direct human therapeutic development milestone identified.

IGF-1 LR3 · Preclinical / no established human program · No established development program

IGF-1 LR3 is discussed widely in research and performance communities, but a peer-reviewed clinical-development program for the exact analogue has not been established.

Development snapshotVerified 2026-09-05

Human biology is documented; no established approved or late-stage therapeutic program identified.

MOTS-C · Preclinical / human biology evidence · No established development program

MOTS-C has substantial interest as an endogenous mitochondrial-derived peptide, but human biology measurements are not the same as a validated therapeutic development program using administered MOTS-C.

Development snapshotVerified 2026-09-05

Pilot Phase 1 human study demonstrated tanning activity and dose-limiting adverse effects.

MT2 / Melanotan II · Phase 1 (historical) · Historical clinical development

Melanotan II was studied in a pilot Phase 1 human program and later small controlled sexual-function studies, but it did not become an FDA-approved tanning or sexual-function medication.

Development snapshotVerified 2026-09-05

No established direct human therapeutic development milestone identified.

PEG-MGF · Preclinical / no established human program · No established development program

PEG-MGF does not have an established peer-reviewed human clinical-development program. Findings involving native MGF or IGF-1 biology should not be transferred automatically to PEG-MGF.

Browse by compound

Public update timelines

Timelines are indexable only after enough tracked material exists to make the page useful. Adding a qualifying research or development record automatically updates the appropriate timeline.

3 tracked itemsLatest Verified 2026-09-05

AOD-9604

Historical Phase 2 obesity-development program; no approved product followed.

2 research·1 development

View timeline →

4 tracked itemsLatest Verified 2026-09-05

BPC-157

Limited exploratory human evidence; no validated late-stage therapeutic program identified.

3 research·1 development

View timeline →

2 tracked itemsLatest Verified 2026-09-05

DSIP

Small double-blind insomnia studies reported weak or inconsistent clinical effects.

1 research·1 development

View timeline →

3 tracked itemsLatest Verified 2026-09-05

Epitalon

No established modern Phase 1–3 therapeutic program identified.

2 research·1 development

View timeline →

3 tracked itemsLatest Verified 2026-09-05

GHK-Cu

Small randomized topical study after CO2 laser resurfacing.

2 research·1 development

View timeline →

2 tracked itemsLatest Verified 2026-09-05

HCG

Longstanding FDA-licensed prescription products including Pregnyl.

1 research·1 development

View timeline →

2 tracked itemsLatest Verified 2026-09-05

IGF-1 LR3

No established direct human therapeutic development milestone identified.

1 research·1 development

View timeline →

3 tracked itemsLatest Verified 2026-09-05

MOTS-C

Human biology is documented; no established approved or late-stage therapeutic program identified.

2 research·1 development

View timeline →

3 tracked itemsLatest Verified 2026-09-05

MT2 / Melanotan II

Pilot Phase 1 human study demonstrated tanning activity and dose-limiting adverse effects.

2 research·1 development

View timeline →

2 tracked itemsLatest Verified 2026-09-05

PEG-MGF

No established direct human therapeutic development milestone identified.

1 research·1 development

View timeline →

2 tracked itemsLatest Verified 2026-09-05

TB-500

No established direct human therapeutic development milestone for TB-500 itself.

1 research·1 development

View timeline →

3 tracked itemsLatest Verified 2026-09-05

Tesamorelin

FDA-approved clinical use after Phase 3 development.

2 research·1 development

View timeline →

1 tracked itemLatest Aug 3, 2026

Pemvidutide

PERFORMA Phase 3 MASH trial initiated

0 research·1 development

View timeline →

4 tracked itemsLatest May 21, 2026

Retatrutide

TRIUMPH-1 delivered positive pivotal Phase 3 results

2 research·2 development

View timeline →

1 tracked itemLatest May 6, 2026

Zenagamtide

AMAZE Phase 3 obesity program initiated

0 research·1 development

View timeline →

2 tracked itemsLatest Feb 23, 2026

CagriSema

REDEFINE 4 head-to-head results reported

0 research·2 development

View timeline →

3 tracked itemsLatest Published 2026

CJC-1295

Growth Hormone Secretagogues and Related Peptides: Evidence Review

2 research·1 development

View timeline →

3 tracked itemsLatest Published 2026

Ipamorelin

Bulk Drug Substances That May Present Significant Safety Risks — Ipamorelin

2 research·1 development

View timeline →

1 tracked itemLatest Nov 4, 2025

MariTide

MARITIME-1 and MARITIME-2 Phase 3 enrollment completed

0 research·1 development

View timeline →

4 tracked itemsLatest Aug 15, 2025

Semaglutide

Wegovy received accelerated FDA approval for MASH

2 research·2 development

View timeline →

1 tracked itemLatest Jun 27, 2025

Mazdutide

China NMPA approved mazdutide for chronic weight management

0 research·1 development

View timeline →

3 tracked itemsLatest Dec 20, 2024

Tirzepatide

FDA approved Zepbound for obesity-associated obstructive sleep apnea

2 research·1 development

View timeline →

1 tracked itemLatest Oct 8, 2024

Survodutide

MASH Phase 3 program initiated and FDA Breakthrough Therapy designation announced

0 research·1 development

View timeline →

How BACToBasics defines an update

Research source

A curated source was added to the Research Library. This does not by itself mean a compound changed development stage or regulatory status.

Development change

A dated milestone such as a trial readout, phase advancement, regulatory submission, approval, or material program-status change.

Development snapshot

The current verified development state for a compound when a separate dated history event is not yet represented in the timeline.

BACToBasics provides educational research organization only. Update pages are not medical advice, treatment guidance, dosing advice, investment advice, or a prediction that an investigational compound will be approved.