Metformin and Transient Hyperglycemia

January 20, 2015 updated by: Dr. Jamie R. Wood, Children's Hospital Los Angeles

Metformin as an Adjunctive Therapy For Transient Hyperglycemia in Patients With Acute Lymphoblastic Leukemia During Induction Chemotherapy

The purpose of this study is to determine whether metformin is an effective adjunctive treatment for transient hyperglycemia in patients with acute lymphoblastic leukemia (ALL) undergoing induction chemotherapy

Study Overview

Detailed Description

ALL is the most common childhood cancer, representing one fourth of all cancers diagnosed under the age of 15 years. One of the most common side effects of ALL chemotherapy is transient hyperglycemia. Patients that develop this complication require treatment with insulin via injections to prevent severe medical complications such as dehydration, weight loss, ketoacidosis and life-threatening infections. Although insulin therapy is effective, it adds a lot of physical and psychological burden to patients because multiple daily insulin injections are required to achieve adequate blood glucose control.

In this pilot study, investigators aim to examine the effectiveness of metformin as an adjunctive treatment for transient hyperglycemia. Investigators will be comparing two groups of subjects (up to 40 subjects per group). Patients in the treatment group will be prospectively recruited, and they will be treated with metformin in addition to insulin therapy. Investigators will compare the treatment group to a historical control group acquired via chart review. These patients will have been treated with insulin alone.

Statistical comparison will be made between the two groups in terms of the length of insulin treatment, the total daily dose of insulin required, number of insulin injections, hemoglobin A1c level (measure of glycemic control over preceding 8- 12 weeks), and fructosamine level (measure of glycemic control over preceding 2-3 weeks).

Investigators hypothesize that the use of metformin will result in fewer numbers of insulin injections and fewer days of insulin therapy.

Study Type

Interventional

Enrollment (Actual)

4

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Los Angeles, California, United States, 90027
        • Children's Hospital Los Angeles

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

10 years to 21 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • ALL patients on induction chemotherapy who develop transient hyperglycemia(definition of transient hyperglycemia: random blood glucose > 200 mg/dL x 2)
  • Adequate renal function (serum Cr < 1.5 mg/dL in males, < 1.2 mg/dL in females)
  • Adequate hepatic function (AST < 5x upper limit of normal)

Exclusion Criteria:

  • Patients with known diagnosis of diabetes or those that are already on oral hypoglycemic agents or insulin
  • Allergy to metformin or any component of the formulation
  • Patients with pancreatitis (lipase level > 300 Units/L)
  • Patients with active infection (positive blood culture within 48 hours of study registration)
  • Patients with hemodynamic instability (PICU status, need for vasopressors within 48 hours of study entry)
  • Elevated hemoglobin A1c (greater than 6.0%)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Metformin and insulin therapy
Up to 30-40 patients will be in the prospectively recruited treatment group, which will receive both metformin and insulin therapy for transient hyperglycemia
All subjects will be started on metformin 500 mg orally twice daily. The dose will be increased by 500 mg weekly as tolerated until subjects' blood glucoses are well controlled or until the patient reaches metformin 1000 mg PO BID.
Other Names:
  • Glucophage, Metformin HCl

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Length of Insulin Therapy (Days)
Time Frame: During the 30 days of induction chemotherapy (plus or minus 2 weeks)
During the 30 days of induction chemotherapy (plus or minus 2 weeks)

Secondary Outcome Measures

Outcome Measure
Time Frame
Serum Fructosamine Level
Time Frame: At 1 month
At 1 month
Hemoglobin A1c
Time Frame: At 1 month
At 1 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jamie R Wood, M.D., Children's Hospital Los Angeles

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2011

Primary Completion (Actual)

May 1, 2013

Study Completion (Actual)

May 1, 2013

Study Registration Dates

First Submitted

November 30, 2011

First Submitted That Met QC Criteria

December 2, 2011

First Posted (Estimate)

December 6, 2011

Study Record Updates

Last Update Posted (Estimate)

January 30, 2015

Last Update Submitted That Met QC Criteria

January 20, 2015

Last Verified

January 1, 2015

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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