Common diabetes drug may slow rare abdominal cancer
NCT ID NCT07693452
First seen Jul 09, 2026 · Last updated Jul 14, 2026 · Updated 3 times
Summary
This trial tests whether metformin, a common diabetes medication, can help people with pseudomyxoma peritonei, a rare cancer that spreads in the abdomen. The study includes adults whose cancer has returned or cannot be surgically removed. Researchers will measure how many participants can take metformin for six months and whether it slows tumor growth.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- metformin
- What this could lead to
- If it works, this could point toward a new, well-tolerated treatment option for a rare abdominal cancer that is hard to treat.
- What could go wrong
- This is a very small pilot study with only 15 people, so results may not apply broadly. Metformin may cause side effects like stomach upset, and it is not a cure.
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 15 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2026
- Expected to finish
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Jul 2029
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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria (complete details available in protocol): * Patients with clinical diagnosis of pseudomyxoma peritonei (PMP) secondary to presumed appendiceal mucinous neoplasms (AMNs) with recurrent/refractory disease s/p cytoreductive surgery(CRS)/hyperthermic intraperitoneal chemotherapy (HIPEC), unresectable disease, or without planned CRS/HIPEC * Age ≥18 years * ECOG performance status ≤2 Key Exclusion Criteria (complete details available in protocol): * Patients with a clinical diagnosis of PMP secondary to presumed AMNs with resectable disease who are planned to undergo CRS/HIPEC * Patients currently taking metformin for another medical indication * Patients with a prior adverse event to administration of metformin
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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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Study contacts
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Contact
Email: •••••@•••••
Locations
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Chao Family Comprehensive Cancer Center, University of California, Irvine
RECRUITINGOrange, California, 92868, United States
Contact Email: •••••@•••••
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