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Endometrial HyperplasiaEarly Phase 1NCT01685762

Metformin for the Treatment of Endometrial Hyperplasia

A Early Phase 1 study testing Metformin in people with Endometrial Hyperplasia and Endometrial Hyperplasia Without Atypia, run by UNC Lineberger Comprehensive Cancer Center at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to see if metformin will be effective in making endometrial hyperplasia without atypia better by returning the tissue to a normal state. Read more about this study

Who is it for?
Ages 18 to 75 years, women only
What is being tested?
Metformin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
3 sitesUnited States
Study dates
10 Jan 2013to 1 Dec 2015
Phase
Early Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Be between the ages of 18-75 years old
  • Have a confirmed diagnosis of endometrial hyperplasia without atypia based upon endometrial biopsy
  • Have no contraindications to short-term metformin therapy
  • Have a creatinine clearance of ≥ 90 ml/min, as calculated by the Cockroft-Gault formula
  • Have normal serum transaminase values (AST and ALT)
  • Need to be able to undergo metformin treatment for a duration of 12 weeks prior to repeat endometrial biopsy

Who cannot join

  • Are currently taking metformin or have taken metformin in the past 6 months or have a history of an allergic reaction or intolerance at any time to metformin
  • Have a history of liver or renal dysfunction.
  • Have a random glucose of ≤ 65 or ≥ 200
  • Have a recent history of alcoholism. Former alcoholics who have abstained from alcohol for 5 years or more may be enrolled in this study.
  • Have a history of vitamin B12 deficiency
  • Are pregnant
Show all 9Show fewer
  • Are currently taking insulin
  • Are taking a drug that may significantly interact or influence the metabolism of metformin
  • In the opinion of the investigator, the patient is felt not to be appropriate for the study

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • The University of North Carolina at Chapel Hill

    Chapel Hill, North Carolina, 27599

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19107

  • Southern Pines Women's Health Center

    Southern Pines, North Carolina, 28388

Other trials in United States

About this study

The purpose of this study is to see if metformin will be effective in making endometrial hyperplasia without atypia better by returning the tissue to a normal state.

Read the detailed description

This is a multi-institutional pilot clinical trial designed to estimate the response rate and safety of metformin for the treatment of simple and complex endometrial hyperplasia (EH) without atypia. Enrollment of patients will occur at UNC-Chapel Hill and Southern Pines Women's Health Center. Fifteen patients will be enrolled over the course of 1 year. Metformin will be initiated at 850 mg orally once daily, and titrated up to twice daily over a minimum of 1 months time. Treatment will last 12 weeks and then patients will undergo repeat endometrial biopsy to assess for regression or persistence of EH.

Being tested
Metformin
Keywords
Endometrial hyperplasia, Uterus, Pilot, Metformin
Medical subject headings
Endometrial Hyperplasia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MetforminDrug

    Also called Fortamet, Glucophage, Glumetza, Riomet

    850 mg of metformin taken once daily by mouth for 4 weeks (weeks 1-4) and then twice daily by mouth for 8 weeks (weeks 5-12).

Study groups in NCT01685762
Study groupRoleWhat they receive
MetforminExperimentalMetformin once daily for 4 weeks (weeks 1-4) and then twice daily for 8 weeks (weeks 5-12).
Receives: Drug: Metformin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Response Rate

    Evaluation of hyperplasia resolution by comparison of pre- and post-treatment endometrial biopsies.

    Measured: 12 weeks

Secondary outcomes (3)
  1. Toxicity evaluation

    Number of subjects who experience side effects

    Measured: 12 weeks

  2. Patient Compliance

    Percentage of patients successfully completing metformin therapy.

    Measured: 12 weeks

  3. Potential molecular markers in response to treatment with Metformin

    Compare changes in potential biomarkers, including metabolic factors and molecular markers of downstream targets of the metformin/mTOR signaling pathway, before and after metformin treatment.

    Measured: 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Sep 2012 (estimated)
  2. Study start10 Jan 2013
  3. Primary completion1 Dec 2015
  4. Study completion1 Dec 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01685762
Sponsor's protocol ID
LCCC 1205
Status last verified
Jan 2019
First submitted
26 Jul 2012
Last updated
27 Apr 2025
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Metformin in people with Endometrial Hyperplasia and Endometrial Hyperplasia Without Atypia, run by UNC Lineberger Comprehensive Cancer Center at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Response Rate (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Apr 2025.

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