Cycle-length evidence
Dihexa cycle length: what human studies ran
Not approved — research use onlyCPreclinical research
Short answer: there is no established Dihexa cycle length, and we found no human studies that report one.
Treatment and follow-up in human studies
No human study durations are recorded.
What has not been tested
- On-and-off schedules or breaks between courses.
- Repeated courses and long-term exposure beyond the periods listed.
- Dihexa combined with other compounds, unless a study above says so.
Frequently asked questions
Is there an established Dihexa cycle length?
No. We found no human studies that report a treatment duration for Dihexa.
What is the longest human study of Dihexa?
None is recorded.
Do study durations tell me how long to use something?
No. A study duration is how long investigators administered a compound to selected participants under monitoring. It is not a recommended course, and a break between courses has not been tested for any compound on this site that is not approved.
References
- Evaluation of metabolically stabilized angiotensin IV analogs as procognitive/antidementia agents (Expression of Concern: J Pharmacol Exp Ther 2021;378:313) Journal of Pharmacology and Experimental Therapeutics. 2013
- RETRACTED: The procognitive and synaptogenic effects of angiotensin IV-derived peptides are dependent on activation of the hepatocyte growth factor/c-Met system Journal of Pharmacology and Experimental Therapeutics. 2014
- Retraction notice to "The Procognitive and Synaptogenic Effects of Angiotensin IV-Derived Peptides Are Dependent on Activation of the Hepatocyte Growth Factor/c-Met System" [J Pharmacol Exp Ther 351 (2014) 390-402] Journal of Pharmacology and Experimental Therapeutics. 2025
- Hepatocyte growth factor mimetic protects lateral line hair cells from aminoglycoside exposure Frontiers in Cellular Neuroscience. 2015
- The Brain Hepatocyte Growth Factor/c-Met Receptor System: A New Target for the Treatment of Alzheimer's Disease Journal of Alzheimer's Disease. 2015
- The development of small molecule angiotensin IV analogs to treat Alzheimer's and Parkinson's diseases Progress in Neurobiology. 2015
- Cognitive benefits of angiotensin IV and angiotensin-(1-7): A systematic review of experimental studies Neuroscience & Biobehavioral Reviews. 2018
- AngIV-Analog Dihexa Rescues Cognitive Impairment and Recovers Memory in the APP/PS1 Mouse via the PI3K/AKT Signaling Pathway Brain Sciences. 2021
- Stem cell, Granulocyte-Colony Stimulating Factor and/or Dihexa to promote limb function recovery in a rat sciatic nerve damage-repair model: Experimental animal studies Annals of Medicine and Surgery. 2021
- Effects of an Angiotensin IV Analog on 3-Nitropropionic Acid-Induced Huntington's Disease-Like Symptoms in Rats Journal of Huntington's Disease. 2024
- Dihexa (CID 129010512): compound summary, synonyms (PNB-0408, ATH-1001) and computed properties PubChem. 2026
- Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions JAAOS Global Research & Reviews. 2026
- Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the Federal Food, Drug, and Cosmetic Act (updated May 14, 2026) FDA. 2026
- ClinicalTrials.gov search for Dihexa, PNB-0408 and ATH-1001 (no registered studies identified) ClinicalTrials.gov. 2026
- World Anti-Doping Code International Standard Prohibited List 2026 WADA. 2026