Effect of Adjunctive Metformin on Recurrence of Non-DM Colorectal Cancer Stage II High-risk/ III Colorectal Cancer

NCT ID: NCT02614339

Last Updated: 2019-09-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

593 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-12-31

Study Completion Date

2021-07-31

Brief Summary

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The aim of this study is to identify the effect of adjunctive metformin on recurrence of non-DM Stage II High-risk/ III colorectal cancer. This study is open-label randomized controlled study.

The primary endpoint is to compare the 3-year disease free survival between metformin group and non-metformin group. The secondary endpoint is to compare the 5-year overall survival and disease specific survival between two group, to identify the safety of metformin, and to compare the recurrence rate of polyps after polypectomy between two groups.

Detailed Description

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Conditions

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Non-DM Stage II High-risk Colorectal Cancer Non-DM Stage III Colorectal Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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metformin

Group Type EXPERIMENTAL

metformin

Intervention Type DRUG

The patients of this group are treated according to NCCN guideline for stage II high-risk/ III colorectal cancer and receive an additional prescription metformin. Metformin will be prescribed 1g/day (500mg, 2 table/day, or 1000mg, 1 table/day). After adjustment period for 1month, patients who do not have side effects will be taken metformin for additional 47 months (total 48months including the adjustment period).

control

Group Type ACTIVE_COMPARATOR

control

Intervention Type DRUG

The patients of this group are treated according to NCCN guideline for stage II high-risk/ III colorectal cancer.

Interventions

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metformin

The patients of this group are treated according to NCCN guideline for stage II high-risk/ III colorectal cancer and receive an additional prescription metformin. Metformin will be prescribed 1g/day (500mg, 2 table/day, or 1000mg, 1 table/day). After adjustment period for 1month, patients who do not have side effects will be taken metformin for additional 47 months (total 48months including the adjustment period).

Intervention Type DRUG

control

The patients of this group are treated according to NCCN guideline for stage II high-risk/ III colorectal cancer.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. patients with stage II high-risk/ III colorectal cancer who were taken an operation for cure, or patients with stage III rectal cancer who were taken an chemoradiation therapy and subsequently operation
2. age 20 - 80 years
3. patients without DM
4. patients who have well performance status for chemotherapy
5. patients who are agreed the study protocol

Exclusion Criteria

1. patients with DM
2. patients who were diagnosed other cancers (≥ stage II) within 5 years
3. patients who have familial adenomatous polyposis, hereditary non-polyposis colorectal cancer, or inflammatory bowel disease
4. patients who are taken other chemoprevention drugs (ex. NSAIDs, Aspirin)
5. patients who have risk factors to increase lactic acidosis which are renal disease, lung disease, liver disease, or infectious disease
6. Creatinine ≥ 1.5mg/dL (for male), ≥ 1.4mg/dL (for female)
7. patients with congestive heart failure which is needed to treat
8. patients who have allergic history of metformin
9. pregnancy
Minimum Eligible Age

20 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Yonsei University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Department of Internal Medicine, Yonsei University College of Medicine

Seoul, , South Korea

Site Status RECRUITING

Countries

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South Korea

Central Contacts

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Tae Il Kim, MD

Role: CONTACT

82-02-2228-1965

Facility Contacts

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TAE IL KIM, MD

Role: primary

82-2-2228-1965

Other Identifiers

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4-2015-0533

Identifier Type: -

Identifier Source: org_study_id

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