See if exemestane helps PMOS patients ovulate compared with placebo
Official title: E.N.D.E.A.V.O.R.: An Exemestane Needed Dose Efficacy and Verification as an Ovulation Induction Regimen Study
Run by University of North Carolina, Chapel Hill · NCT07706374 · Data updated 2026-11-12
This study tests whether daily exemestane can help women with PMOS/PCOS ovulate better than a placebo.
Quick facts
| Phase | Phase 1 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 40 Years |
| Sex | Women only |
| Enrollment | 40 (estimated) |
| Sponsor | University of North Carolina, Chapel Hill Academic / other |
| Locations | 1 site (Raleigh, North Carolina) |
| Status | Recruiting |
| Started | October 1, 2026 |
| Main results expected | December 2028 |
| Study ends | January 2030 |
| Registry record updated | September 23, 2026 |
| Trial ID | NCT07706374 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Premenopausal women aged 18–40 with PCOS/PMOS who have not previously used ovulation induction medications and meet eligibility criteria.
✕Probably not a fit
Patients with non-ovulatory infertility causes beyond PMOS, contraindications to exemestane, or inability to participate in the protocol may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 1 interventional trial compares exemestane at two dose levels to placebo in premenopausal women with PCOS/PMOS who have not tried ovulation induction before. Participants take the study medication daily for 5–10 days and undergo three clinic visits for ultrasounds and lab assessments to monitor ovulation and side effects. The study also collects information on pregnancy outcomes if pregnancy occurs. The goal is to determine if exemestane can induce ovulation and to characterize its safety profile in this population.
Why it matters
Potential benefit: If successful, exemestane could offer a new option to help these patients ovulate and improve fertility outcomes.
How similar studies have gone: Prior ovulation induction research has shown letrozole and other aromatase inhibitors can improve ovulation, though exemestane in this exact setting is exploratory.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: In order to be eligible to participate in this study, an individual must meet all of the following criteria: * Premenopausal female (ages 18-40); * Undergone an evaluation for infertility at UNC Fertility; * Previously diagnosed with polycystic ovary syndrome/ polyendocrine metabolic ovarian syndrome (PCOS/PMOS) via established clinical diagnostic criteria with no other identifiable cause of infertility (example- endometriosis, uterine fibroids), and recommended to begin ovulation induction therapy; * Have patent fallopian tubes on hysterosalpingogram; * Male partners must have a normal semen analysis if presenting with a male partner; * Individuals must be ovulation induction naïve (no history of use of ovulation induction medications); * Individuals must be able to read, speak, and understand English or Spanish sufficiently to provide informed consent and participate in study procedures. Exclusion Criteria: Any individual who meets one or more of the following criteria will be excluded from participation: * Under 18 or over 40 years of age; Individuals without the diagnosis of PCOS; * Body mass index \>40 kg/m\^2; Abnormal hysterosalpingogram; * Abnormal semen analysis if presenting with a male partner; * History of ovulation induction medication use; * Allergy to exemestane; * Individuals with abnormalities of Pap smear or breast examination; * Pregnant females; * Individuals with moderate to severe renal impairment; * Individuals with moderate to severe hepatic impairment; * Currently taking any of the following medications due to known or potential interactions with exemestane: Cytochrome P-450 3A4 (CYP3A4), Everolimus (Afinitor), Apixaban (Eliquis), Rivaroxaban (Xarelto), Aspirin, Diphenhydramine (Benadryl), Rosuvastatin (Crestor), Duloxetine (Cymbalta), Escitalopram (Lexapro), Atorvastatin (Lipitor), Pregabalin (Lyrica), Metoprolol, Semaglutide (Ozempic), Levothyroxine (Synthroid), Ondansetron (Zofran), Goserelin (Zoladex); * Individuals who require a Legally Authorized Representative (LAR) to provide consent on their behalf; * Difficulty or inability to swallow solid dosage forms (tablets/capsules of study drug)
Where it's running
-
UNC Fertility
Raleigh, North Carolina, United States Recruiting
Study contacts
- Principal investigator: Bruce Pier, MD — University of North Carolina, Chapel Hill
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.