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Investigational / not FDA-approved

Semax

MEHFPGP ACTH(4-10) analogue — CID 9811102; ≠ Adamax ≠ Selank; Russian stroke lit ≠ US FDA approval.

Editorial review:
What evidence says

Evidence snapshot

This drawer marks papers. It is not a plan, a dose, or a source. A paper is a bounded report. It is not a protocol. Grades name the object. They are not a safety rating.

Identity lock. Semax is the synthetic ACTH(4-10) analogue Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP). PubChem CID 9811102 (hard-separate from Selank CID 11765600 and from unresolved Adamax); formula C37H51N9O10S / MW 813.9; CAS 80714-61-0. Semax ≠ Adamax (Adamax is a separate batch-D object / unresolved N-methyl/adamantane-related Semax derivative narrative — do not merge). Semax ≠ Selank. Russian stroke / cognitive program literature exists; do not assume a US FDA-approved stroke drug. This drawer marks papers. It is not use advice.

Bottom line

Human evidence includes Russian clinical reports on Semax at different stages of ischemic stroke. Mechanistic literature is largely rodent ischemia transcriptome / immune-vascular gene regulation, plus copper-coordination and Aβ-aggregation biophysical papers. Seized “cognitive peptide” analytical surveys may list Semax-class products without proving efficacy. Keep Selank joint-imaging papers from collapsing the two objects.

Papers

Human stroke / clinical-program

PMID 29798983 — Gusev 2018

Tested: efficacy of Semax in treatment of patients at different stages of ischemic stroke (clinical-program report).

Does not show: a US FDA-approved stroke indication, or identity with Adamax.

Ischemia / transcriptome (rodent)

PMID 24661604 — Medvedeva 2014

Tested: genome-wide transcriptional analysis of Semax effects on immune and vascular system genes in rat brain focal ischemia.

Does not show: human stroke approval.

PMID 28255762 — Medvedeva 2017

Tested: Semax regulation of immune-response gene expression during ischemic brain injury in rats.

Does not show: human RCT replacement for Gusev clinical-program data.

PMID 32580520 — Filippenkov 2020

Tested: transcriptome-level protective properties of ACTH(4-7)PGP (Semax) after cerebral ischemia-reperfusion in rats.

Does not show: human clinical endpoints.

PMID 34201112 — Sudarkina 2021

Tested: brain protein expression profile supporting protective effect of Semax in rat cerebral ischemia-reperfusion.

Does not show: human efficacy by proteomics alone.

Coordination chemistry / Aβ biophysics (secondary)

PMID 27586814 — Magrì 2016

Tested: influence of N-terminus acetylation of Semax on copper(II)/zinc(II) coordination and biological properties.

Does not show: a clinical Alzheimer’s indication.

PMID 35080861 — Sciacca 2022

Tested: Semax effects on copper-induced Aβ aggregation and amyloid formation in artificial membrane models.

Does not show: human AD trial efficacy.

Joint / analytical context

PMID 32342318 — Panikratova 2020

Tested: functional connectomic study of Selank and Semax effects.

Does not show: interchangeability of Selank and Semax.

PMID 31667971 — Vanhee 2020

Tested: occurrence of putative cognitive-enhancing research peptides in seized pharmaceutical preparations (analytical/control framing).

Does not show: efficacy of Semax.

PMID 33418449 — Glazova 2021

Tested: Semax attenuates behavioural/neurochemical alterations after early-life fluvoxamine exposure in rats.

Does not show: human pediatric or psychiatric approval.

What is not established

US FDA approval for stroke or cognition. Equivalence to Adamax or Selank. That rodent transcriptome signals equal worldwide labeled efficacy. Product identity of unlabeled “Semax” vials. This drawer does not provide use advice, schedules, or sourcing.

Selected sources

29798983 24661604 28255762 32580520 34201112 27586814 35080861 32342318 31667971 33418449

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