Actively Recruiting

Phase 2
Age: 18Years +
All Genders
ID05727761

Pioglitazone-Metformin Combination Treatment for High Risk Oral Preneoplasia

Led by University of Minnesota · Updated on 2025-12-24

36

Participants Needed

2

Research Sites

N/A

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are evaluating the effects of a combination treatment of pioglitazone and metformin on high risk oral leukoplakia, a condition involving abnormal patches in the mouth that may develop into cancer. This Phase IIa study aims to understand the clinical and tissue-level changes in leukoplakia after a 12-week course of this oral medication. The study focuses on whether the treatment can reduce the severity of leukoplakia lesions and decrease cell proliferation markers. Participants will receive pioglitazone 15 mg and metformin 500 mg twice daily for 12 weeks. The study includes 36 patients with measurable high risk oral leukoplakia lesions, which must be accessible for biopsy. Researchers will perform biopsies before and after treatment to assess changes in the lesions and measure specific cell growth markers. The treatment is given orally and requires participants to follow the twice daily dosing schedule for the full 12 weeks. During the study, participants will undergo clinical exams and biopsies of the leukoplakia lesions at the start and end of the treatment period to assess changes. Researchers will measure clinical response, tissue changes, and Ki-67 cell proliferation levels. Participants must be able to comply with treatment and attend all visits. The study is expected to continue until July 2026, with careful monitoring of participant health and treatment adherence throughout the 12-week intervention.

CONDITIONS

Brief Title

Pioglitazone-Metformin Combination Treatment for High Risk Oral Preneoplasia

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Biopsy proven hyperplasia in high risk anatomic areas such as floor of mouth, mobile tongue, oropharynx
  • Presence of hyperplasia or dysplasia of any grade in erythroplakia lesion
  • Mild, moderate, or severe dysplasia within lesions in oral cavity or oropharynx
  • Measurable oral leukoplakia lesions in 2 dimensions per RECIST, lesion must be accessible for punch biopsy and at least 4mm x 8mm
  • Age 18 years or older
  • Evidence of adequate organ function within 14 days prior to Day 1
  • Ability to comply with treatment and complete 12 weeks of twice daily medication
  • Body mass index (BMI) of 18.5 or greater
  • Sexually active persons of child-bearing potential must use adequate contraception during study
  • Provide voluntary written consent prior to research activities
Not Eligible

You will not qualify if you...

  • Pregnant, breastfeeding, or planning pregnancy
  • Diagnosis of Type I or II diabetes treated with insulin or antidiabetic agents (diet/exercise controlled Type II diabetes allowed)
  • Taking any other investigational agent not approved by the FDA
  • History of allergic reaction to pioglitazone, metformin, or similar compounds
  • Contraindication to biopsy procedure required by study
  • History of bladder cancer including in situ
  • History of invasive cancer (except non-melanoma skin or cervical cancer in situ) active within 18 months prior to baseline visit (curatively treated cancers without recurrence allowed)

AI-Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - 12 weeks

Participants take pioglitazone-metformin (15mg/500mg) twice a day for 12 weeks to treat high risk oral preneoplasia.

Visits may occur periodically during the 12 weeks for medication management and assessment

Trial Site Locations

Total: 2 locations

1

University of Minnesota

Minneapolis, Minnesota, United States, 55455

Actively Recruiting

2

HealthPartners

Saint Paul, Minnesota, United States, 55130

Actively Recruiting

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Research Team

B

Beverly Wuertz

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

PREVENTION

Number of Arms

1

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Published Research Related To This Trial

Clinical Management Update of Oral Leukoplakia: A Review From the American Head and Neck Society Cancer Prevention Service.

James C Gates, Marianne Abouyared, Yelizaveta Shnayder...

https://pubmed.ncbi.nlm.nih.gov/39584361