Cycle-length evidence
Pancragen cycle length: what human studies ran
Not approved — research use onlyBLimited human data
Short answer: there is no established Pancragen cycle length or break. The human studies below ran for set periods under monitoring; none tested repeated courses.
Treatment and follow-up in human studies
What has not been tested
- On-and-off schedules or breaks between courses.
- Repeated courses and long-term exposure beyond the periods listed.
- Pancragen combined with other compounds, unless a study above says so.
Frequently asked questions
Is there an established Pancragen cycle length?
No. Human studies administered Pancragen for the periods listed on this page. Those are study durations; none tested an on-and-off schedule or a break.
What is the longest human study of Pancragen?
The durations are listed on this page with their sources; compare them directly rather than relying on a summary.
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
- lysyl-glutamyl-aspartyl-tryptophanamide [Supplementary Concept] — entry terms Lys-Glu-Asp-Trp-NH2, KEDW-NH2, pancragen Medical Subject Headings, U.S. National Library of Medicine. 2026
- Prospects of using pancragen for correction of metabolic disorders in elderly people Bulletin of Experimental Biology and Medicine. 2011
- Correction of impaired glucose tolerance using tetrapeptide (Pancragen) in old female rhesus monkeys (in Russian) Advances in Gerontology (Uspekhi Gerontologii). 2015
- Impact of tetrapeptide pancragen on endocrine function of the pancreas in old monkeys (in Russian) Advances in Gerontology (Uspekhi Gerontologii). 2014
- Effects of pancragen on the differentiation of pancreatic cells during their ageing Bulletin of Experimental Biology and Medicine. 2013
- Peptides tissue-specifically stimulate cell differentiation during their aging Bulletin of Experimental Biology and Medicine. 2012
- Tetrapeptide stimulates functional activity of the pancreatic cells in aging (in Russian) Advances in Gerontology (Uspekhi Gerontologii). 2012
- Study of biological activity of Lys-Glu-Asp-Trp-NH2 endogenous tetrapeptide Bulletin of Experimental Biology and Medicine. 2010
- Effect of pancragen on blood glucose level, capillary permeability and adhesion in rats with experimental diabetes mellitus Bulletin of Experimental Biology and Medicine. 2007
- ClinicalTrials.gov registry query for "pancragen" (0 studies returned) ClinicalTrials.gov (U.S. National Library of Medicine). 2026
- openFDA Drug Label API query for "pancragen" (no approved human drug labeling for a peptide of this name) U.S. Food and Drug Administration / openFDA. 2026
- Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the Federal Food, Drug, and Cosmetic Act (updated May 14, 2026) U.S. Food and Drug Administration. 2026
- World Anti-Doping Code International Standard — Prohibited List 2026 (effective 1 January 2026) World Anti-Doping Agency. 2026
- PubMed query for "pancragen" (9 records) PubMed / NCBI Entrez (U.S. National Library of Medicine). 2026
- [The tetrapeptide pankragen forte efficiency in elderly people with prediabetic state] Adv Gerontol. 2013