Could a natural hormone help restore fertility?
NCT ID NCT05896293
First seen Jun 27, 2026 · Last updated Jul 14, 2026 · Updated 2 times
Summary
This study tests whether kisspeptin, a natural hormone, can stimulate reproductive hormones and egg release in 36 men and women with idiopathic hypogonadotropic hypogonadism (IHH). Participants receive kisspeptin injections every 1-4 hours for two weeks. Researchers monitor hormone levels and ovarian follicle growth to see if the treatment works.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- kisspeptin (a naturally occurring hormone)
- What this could lead to
- If it works, this could point toward a new treatment option for people with reproductive hormone deficiencies.
- What could go wrong
- This is a small, early-stage trial with only 36 participants, so results may not apply to everyone. The treatment is given for just two weeks, so long-term effects are unknown.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 36 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2023
- Expected to finish
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May 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Congenital IHH * Confirmed diagnosis by medical provider supported by low sex steroids in the setting of low or inappropriately normal gonadotropins * Normal blood pressure (systolic BP \< 140 mm Hg, diastolic \< 90 mm Hg) * No current or recent use of a medication that, in the opinion of a study investigator, can modulate the reproductive axis or willing to complete an appropriate washout for that particular medication and method of administration * If applicable, willing to use birth control methods (as approved by a study medical professional) during the entire study and for one month after the last dose of study drug Exclusion Criteria: * Any condition (medical, mental, or behavioral) that, in the opinion of a study investigator, would likely interfere with participation in/completion of the protocol * Excessive alcohol consumption (\>10 drinks/week) * Active use of illicit drugs (not including marijuana) * For women: * Pregnant or trying to become pregnant * Breast feeding * History of: bilateral oophorectomy (both ovaries were removed), breast cancer, thromboembolic disease, coronary artery disease, stroke, thrombophilic disorders, or undiagnosed abnormal genital bleeding
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02114, United States
Contact Email: •••••@•••••
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