Clinical trial Recruiting at 1 site Early Phase 1 Interventional Ages 18 and up Women only

Tirzepatide for obesity-related endometrial cancer

Official title: A Pre-Operative Window Study of Tirzepatide in Obesity-Driven Endometrial Cancer

Run by UNC Lineberger Comprehensive Cancer Center · NCT07065552 · Data updated 2026-11-12

This study will test whether four weeks of tirzepatide before surgery reduces tumor cell growth in obese women with endometrial cancer.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment20 (estimated)
SponsorUNC Lineberger Comprehensive Cancer Center
Academic / other
Locations1 site (Chapel Hill, North Carolina)
StatusRecruiting
StartedApril 27, 2026
Main results expectedJuly 2028
Study endsJuly 2028
Registry record updatedOctober 2, 2026
Trial IDNCT07065552 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18) with presumed early-stage endometrioid endometrial cancer who are obese (BMI ≥30), scheduled for hysterectomy, and with ECOG ≤2 are the ideal candidates.

Probably not a fit

Patients with advanced or non-endometrioid disease, pregnant or breastfeeding individuals, those taking medications that affect metabolism, or with active infections or relevant drug sensitivities are unlikely to benefit or to be eligible.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a pre-operative window study in which 20 obese women with presumed early-stage endometrioid endometrial cancer will receive tirzepatide for four weeks prior to their scheduled hysterectomy. Each patient's diagnostic endometrial biopsy (or archival tissue) will be compared to the hysterectomy specimen to measure changes in tumor proliferation and tumor microenvironment markers. The trial examines both indirect metabolic effects (weight loss, insulin and lipid changes) and possible direct effects on mTOR and related signaling within tumor tissue. Subjects will have an end-of-treatment visit and will be followed via medical record abstraction for 24 months to monitor weight maintenance.

Why it matters

Potential benefit: If successful, tirzepatide could produce weight loss and reduce tumor proliferation, potentially improving surgical outcomes and longer-term prognosis for obese patients with endometrial cancer.

How similar studies have gone: GIP/GLP-1 receptor agonists like tirzepatide have produced substantial weight loss in diabetes and obesity trials, but direct anti-tumor effects in endometrial cancer are largely untested in humans and mostly supported by preclinical or indirect metabolic data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Current diagnosis of endometrioid histology cancer and scheduled to undergo hysterectomy and staging.
* Agree to comply with all required study assessments and visits including internet capabilities.
* Written informed consent obtained to participate in the study and HIPAA authorization for release of personal health information.
* Age ≥ 18 at the time of consent.
* Body mass index of ≥30 kg/m2.
* Presumed clinically early-stage disease (disease confined to uterus only).
* ECOG ≤ 2 or Karnofsky Performance Status of \> 50

Exclusion Criteria:

* Active infection requiring systemic therapy.
* Subject is pregnant or breast feeding.
* Taking any prescription medications or other drugs that may influence metabolism per discretion of investigator.
* Taking a central nervous system stimulant.
* Current psychological conditions that would be incompatible with participation in this study, as determined by investigator.
* Known sensitivities (i.e., urticaria and eczema) to GIP and GLP-1 receptor agonists.
* Have type 1 diabetes mellitus or latent autoimmune diabetes in adults or receiving treatment with insulin.
* Have a history of severe hypoglycemia or not be able to communicate an understanding of hypoglycemic symptoms.

Where it's running

  • Lineberger Comprehensive Cancer Center
    Chapel Hill, North Carolina, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.