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Trial record 72 of 479 for:    colon cancer | ( Map: Texas, United States )

An Open-Labeled Pilot Study of Biomarker Response Following Short-Term Exposure to Metformin

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01816659
Recruitment Status : Terminated (Slow Accrual)
First Posted : March 22, 2013
Last Update Posted : November 18, 2015
Information provided by (Responsible Party):
M.D. Anderson Cancer Center

Brief Summary:

The goal of this clinical research study is to learn more about the possible effects of metformin extended release (ER) in patients with colon cancer or adenomas who are about to have surgery. The safety of this drug will also be studied.

Metformin-ER is commonly used to control blood sugar levels in patients with diabetes. It is also designed to block a protein in tumor cells that is important in tumor growth and blood vessel development. This may cause cell death or reduce the spread of the disease.

Condition or disease Intervention/treatment Phase
Colorectal Carcinoma Drug: Metformin ER Phase 1

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 3 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Official Title: An Open-Labeled Pilot Study of Biomarker Response in Patients With Colorectal Cancer or Endoscopically Non-Resectable Adenomas Following Short-Term Exposure to Metformin Extended Release (ER)
Study Start Date : May 2013
Actual Primary Completion Date : August 2014
Actual Study Completion Date : August 2014

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Metformin + Colon Surgery
Patients randomized to Metformin-ER 500 mg once daily for one week and then escalation to 1000 mg/day for the duration of the trial. The duration of the trial will be from the preoperative endoscopy till the surgery, and should be not less than 10 days and not more than 30 days.
Drug: Metformin ER
500 mg by mouth once daily, beginning the day after colonoscopy for one week, and then escalation to 1000 mg/day. The duration of the trial will be from the preoperative endoscopy till the surgery, and should be not less than 10 days and not more than 30 days.
Other Name: Metformin

No Intervention: Colon Surgery Alone
Patients will not receive any study drug from the time of colonoscopy until surgery.

Primary Outcome Measures :
  1. Comparison of Ki-67 in Tumor Samples [ Time Frame: 2 weeks ]
    Primary outcome measure is change in the percentage of Ki67-positive-staining cells between the baseline colonoscopy and surgery in the colon rectal cancer/non-resectable adenoma samples.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age between 18- 75 years
  2. Colonic lesion that should be removed surgically:
  3. 2.a. CRC that is potentially resectable and not requiring neoadjuvant treatment.
  4. 2.b. Endoscopically non-resectable adenoma.
  5. 2.c. Familial Adenomatous Polyposis (FAP) patient that requires colectomy or proctocolectomy.
  6. Need for perioperative colonoscopy as a part of standard of care evaluation:
  7. 6.a. CRC or adenoma for which the colorectal surgeon requires a preoperative colonoscopy or sigmoidoscopy for any reason, including but not limited to:
  8. 6.a.a. No outside colonoscopy
  9. 6.a.b. No outside pathology
  10. 6.a.c. Partially obstructing tumor or
  11. 6.a.d. Otherwise unsatisfactory outside colonoscopy
  12. 6.a.e. Rectal cancer requiring EUS
  13. 6.a.f. Second opinion on adenoma regarded as endoscopically non-resectable on outside colonoscopy; or
  14. 6.b. Patient found on initial MDACC colonoscopy to have CRC or endoscopically non-resectable adenoma, most commonly patients undergoing average or high risk (familial, history of adenoma) screening colonoscopy.
  15. Ability to give informed consent.
  16. Diabetic patients are eligible but they may be excluded if they are taking Metformin, insulin or sulfonylureas.

Exclusion Criteria:

  1. Patients with renal insufficiency defined as serum creatinine >= 1.4 mg/dl for females and >= 1.5 mg/dl for males
  2. Pregnant or nursing women
  3. A malignancy currently under active therapy
  4. Unstable angina
  5. Uncontrolled ischemic cardiac disease or symptomatic congestive heart failure (e.g. Class III or IV New York Heart Association's Functional Classification)
  6. Current usage of Metformin
  7. Current usage of insulin, sulfonylureas
  8. History of lactic acidosis
  9. Chronic liver disease or cirrhosis
  10. Inability to give informed consent
  11. Other investigational drugs within the past one year or concurrently
  12. Known hypersensitivity or intolerance to Metformin

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01816659

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United States, Texas
University of Texas MD Anderson Cancer Center
Houston, Texas, United States, 77030
Sponsors and Collaborators
M.D. Anderson Cancer Center
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Principal Investigator: Patrick Lynch, MD, JD M.D. Anderson Cancer Center

Additional Information:
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Responsible Party: M.D. Anderson Cancer Center Identifier: NCT01816659     History of Changes
Other Study ID Numbers: 2012-1150
NCI-2013-00994 ( Registry Identifier: NCI CTRP )
First Posted: March 22, 2013    Key Record Dates
Last Update Posted: November 18, 2015
Last Verified: August 2014
Keywords provided by M.D. Anderson Cancer Center:
Colorectal Carcinoma
Endoscopically Non- Resectable Adenomas
Colonic lesion
Extended release
Colon cancer surgery
Additional relevant MeSH terms:
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Colorectal Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Colonic Diseases
Digestive System Diseases
Gastrointestinal Diseases
Intestinal Diseases
Rectal Diseases
Hypoglycemic Agents
Physiological Effects of Drugs