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The Chemopreventive Effect of Metformin in Patients With Familial Adenomatous Polyposis: Double Blinded Randomized Controlled Study

NCT01725490 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 34

Last updated 2021-09-20

No results posted yet for this study

Summary

Familial adenomatous polyposis (FAP) leads to adenomas and eventual adenocarcinomas in colon and less frequently, duodenum. Chemopreventive strategies have been studied in FAP patients to delay the development of adenomas and cancers. The non-steroidal anti-inflammatory drugs (NSAIDs) and selective cyclooxygenase-2 inhibitor have shown the regression of colorectal and duodenal adenomas in FAP patients. However, these drugs showed gastrointestinal damage and cardiovascular risks, and new preventive strategies are needed. Metformin, a biguanide, which is widely used for treating diabetes mellitus, has recently been suggested to have a suppressive effect on tumorigenesis via mTOR-inhibiting pathway, and have no significant safety issues in long term use. The investigators devised a double-blind randomized controlled trial to evaluate the effect of metformin on polyps of colorectum and duodenum in non-diabetic FAP patients.

Conditions

Interventions

DRUG

Metformin

Patients will be randomly assigned in a 2:2:1 ratio to receive metformin or identical-appearing placebo tablets orally for 7 months: metformin 500mg once and placebo twice a day in arm A, metformin 500mg three times a day in arm B, and placebo three times a day in arm C.

DRUG

Metformin

Patients will be randomly assigned in a 2:2:1 ratio to receive metformin or identical-appearing placebo tablets orally for 7 months: metformin 500mg once and placebo twice a day in arm A, metformin 500mg three times a day in arm B, and placebo three times a day in arm C.

DRUG

Placebo

Patients will be randomly assigned in a 2:2:1 ratio to receive metformin or identical-appearing placebo tablets orally for 7 months: metformin 500mg once and placebo twice a day in arm A, metformin 500mg three times a day in arm B, and placebo three times a day in arm C.

Sponsors & Collaborators

  • Yonsei University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-02-15
Primary Completion
2020-08-30
Completion
2020-08-30

Countries

  • South Korea

Study Locations

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Entities

Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01725490 on ClinicalTrials.gov