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NA-Semax-Amidate

A chemically modified version of Semax designed for improved stability. No published clinical or preclinical data exists for this specific compound.

LimitedLimited Data

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This information is for educational purposes. Peptide therapy should be guided by a licensed healthcare provider. Connect with a Noho clinician

What is NA-Semax-Amidate?

NA-Semax-Amidate is a modified version of Semax with N-acetyl and C-amide modifications designed to enhance stability against enzymatic degradation. There are no published clinical or preclinical studies on this specific compound. All evidence for its effects is extrapolated from research on the parent compound Semax, which is a synthetic analog of ACTH(4-10) extensively studied in Russia for cognitive enhancement, neuroprotection in ischemic stroke, BDNF upregulation, antistress effects, and immune modulation.

Why People Talk About It

Cognitive function (extrapolated from Semax research)

Limited

Neuroprotection and stroke recovery (extrapolated from Semax research)

Limited

BDNF and neurotrophin upregulation (extrapolated from Semax research)

Limited

Antidepressant and antistress effects (extrapolated from Semax research)

Limited

Improved stability over standard Semax

Limited

How It Works

NA-Semax-Amidate is assumed to work through the same pathways as Semax, which has been shown in rodent studies to activate dopaminergic and serotonergic systems, upregulate BDNF and NGF expression, and modulate neuroinflammatory gene expression. The N-acetyl and amide modifications are intended to improve stability, but their effect on biological activity has not been directly studied.

Common Questions

Safety Information

Important Safety Notes

Common Side Effects

Assumed similar to Semax: nasal irritation, headache (not independently verified)

Cautions

  • No published safety data for this specific compound
  • Not approved in any jurisdiction
  • All safety assumptions are extrapolated from Semax

What We Don't Know

The safety profile of NA-Semax-Amidate has not been characterized in any published study. It is unknown whether the chemical modifications alter the safety profile relative to Semax.

Published Research

18 studies

Semax, an analogue of adrenocorticotropin (4-10), is a potential agent for the treatment of attention-deficit hyperactivity disorder and Rett syndrome

ReviewPMID: 16996699

Influence of the N-terminus acetylation of Semax, a synthetic analog of ACTH(4-10), on copper(II) and zinc(II) coordination and biological properties

PreclinicalPMID: 27586814

Semax, an ACTH(4-10) analogue with nootropic properties, activates dopaminergic and serotoninergic brain systems in rodents

PreclinicalPMID: 16362768

The efficacy of Semax in the treatment of patients at different stages of ischemic stroke

ClinicalPMID: 29798983

Effects of Semax on the default mode network of the brain

ClinicalPMID: 30225715

The heptapeptide SEMAX stimulates BDNF expression in different areas of the rat brain in vivo

PreclinicalPMID: 14556513

Neurotrophin gene expression in rat brain under the action of Semax, an analogue of ACTH 4-10

PreclinicalPMID: 17353092

Comparison of the temporary dynamics of NGF and BDNF gene expression in rat hippocampus, frontal cortex, and retina under Semax action

PreclinicalPMID: 19662538

Semax and Pro-Gly-Pro activate the transcription of neurotrophins and their receptor genes after cerebral ischemia

PreclinicalPMID: 19633950

Brain protein expression profile confirms the protective effect of the ACTH(4-7)PGP peptide (Semax) in a rat model of cerebral ischemia-reperfusion

PreclinicalPMID: 34201112

Novel insights into the protective properties of ACTH(4-7)PGP (Semax) peptide at the transcriptome level following cerebral ischaemia-reperfusion in rats

PreclinicalPMID: 32580520

Semax, an ACTH4-10 peptide analog with high affinity for copper(II) ion and protective ability against metal induced cell toxicity

PreclinicalPMID: 25310602

Semax, a copper chelator peptide, decreases the Cu(II)-catalyzed ROS production and cytotoxicity of Abeta by metal ion stripping and redox silencing

PreclinicalPMID: 40496623

Antidepressant-like and antistress effects of the ACTH(4-10) synthetic analogs Semax and Melanotan II on male rats in a model of chronic unpredictable stress

PreclinicalPMID: 39442746

Semax, synthetic ACTH(4-10) analogue, attenuates behavioural and neurochemical alterations following early-life fluvoxamine exposure in white rats

PreclinicalPMID: 33418449

Semax peptide targets the mu opioid receptor gene Oprm1 to promote deubiquitination and functional recovery after spinal cord injury in female mice

PreclinicalPMID: 40692165

The potential of the peptide drug Semax and its derivative for correcting pathological impairments in the animal model of Alzheimer's disease

PreclinicalPMID: 41479572

Experimental substantiation of application of Semax as a modulator of immune reaction on the model of social stress

PreclinicalPMID: 31028579

Always consult a qualified clinician

This information is for educational purposes. Peptide therapy should be guided by a licensed healthcare provider. Connect with a Noho clinician

Research Insights

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Quick Facts

Class
Nootropic Peptide
Evidence
Limited
Safety
Limited Data
Updated
Mar 2026
Citations
18PubMed

Also known as

N-Acetyl Semax Amidate

Tags

Cognitive SupportNeuroprotectionFocusResearch

Related Goals

Evidence Score

Overall Confidence10%

Clinical Trials

View Clinical Trials

Links to ClinicalTrials.gov for reference. Listing does not imply endorsement.

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