
Peptilex – The Peptide Encyclopedia
- 34 peptides – from semaglutide to BPC-157 – in one book
- An evidence grade (A–E) and the key studies for every peptide
- Where each one stands in 2026 – US, EU and Switzerland
Hormones & growth
53 women in IVF; kisspeptin triggered egg maturation, clinical pregnancy rate 23 percent.
Jayasena CN et al. – Journal of Clinical Investigation, 2014Phase 2, 60 women at high risk of hyperstimulation; egg maturation in 95 percent, no moderate or severe hyperstimulation, live birth in 45 percent of transfers.
Abbara A et al. – Journal of Clinical Endocrinology & Metabolism, 2015Randomized, 32 women with low sexual desire; changed activity in the brain's sexual-processing network.
Thurston L et al. – JAMA Network Open, 2022All key studies, risks and open questions are in the book.
Source: PubMed and ClinicalTrials.gov via the Peptilex study database
Source: PubMed and ClinicalTrials.gov via the Peptilex study database
Source: PubMed and ClinicalTrials.gov via the Peptilex study database
Go deeper
What it is, how it acts, the key studies, risks and open questions.

ClinicalTrials.gov · name in study title · ongoing first
| Study | Phase | Status | Participants | Start |
|---|---|---|---|---|
| Dampening the Reproductive Axis With Continuous Kisspeptin NCT05971849Stephanie B. Seminara, MD | Phase 1 | Completed | 8 | Oct 2023 |
| Kisspeptin/GPR54 Pathway and Early Puberty NCT04012632Shenzhen Center for Disease Control and Prevention | Observational | Completed | 628 | Sep 2016 |
| Detection of Kisspeptins and miRNAs in Patients With Non-viable Pregnancy NCT03877939Vida Recoletas Sevilla | Observational | Completed | 433 | Sep 2019 |
| Tachykinin and Kisspeptin Expression in Human Granulosa and Cumulus Cells NCT02877992Vida Recoletas Sevilla | – | Completed | 236 | Jan 2014 |
| Serum Kisspeptin: a Predictive Marker of Miscarriage or Not? NCT03940495ShangHai Ji Ai Genetics & IVF Institute | Observational | Completed | 182 | May 2019 |
| Serum Kisspeptin Levels in Infertile Women NCT03018314Bakirkoy Dr. Sadi Konuk Research and Training Hospital | Observational | Completed | 90 | Jun 2016 |
| Kisspeptin Levels in Early Pregnancy NCT04371991Semra Yuksel | Observational | Completed | 88 | Jan 2019 |
| Association of Kisspeptin Levels With Insulin Secretion in Diabetes Mellitus NCT01956851Ganga Care Hospital, Nagpur | Observational | Completed | 55 | Sep 2013 |
| A Prospective Cohort Study on the Serum Kisspeptin Levels Throughout Pregnancy in PCOS NCT06545994Fudan University | Observational | Status unknown | 180 | Jun 2024 |
Showing 19 of 22 matching registered studies. See all on ClinicalTrials.gov.
PubMed · newest first
Intranasal kisspeptin administration rapidly stimulates gonadotropin release in humans
Human RCTMills EG et al. · EBioMedicinePMID 40215751
Kisspeptin Administration Stimulates Reproductive Hormones but Does Not Affect Anxiety in Humans
Human RCTMills EG et al. · J Clin Endocrinol MetabPMID 40036336
Kisspeptin and its Current Clinical Status-A Systematic Review
Systematic reviewVelmurugan H et al. · Current Medicinal ChemistryPMID 38265397
Kisspeptin expression levels in patients with placenta previa: A randomized trial
Human RCTKatirci Y et al. · MedicinePMID 38996103
Human RCTAbbara A et al. · Fertility and SterilityPMID 37925096
Human RCTMills EG et al. · JAMA Network OpenPMID 36735255
Human RCTThurston L et al. · JAMA Network OpenPMID 36287566
Human RCTGu Q et al. · The Journal of Nutritional BiochemistryPMID 35691596