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Original Articles

Glipizide-GITS Does Not Increase the Hypoglycemic Effect of Mild Exercise During Fasting in NIDDM

  1. Matthew C Riddle, MD,
  2. Patricia A McDaniel, MS and
  3. Leslie A Tive, PHD
  1. Division of Endocrinology Diabetes Clinical Nutrition, Pfizer, Inc. New York, New York
  2. Department of Medicine, Oregon Health Sciences University Portland, Oregon U.S. Pharmaceuticals Group, Pfizer, Inc. New York, New York
  1. Address correspondence and reprint requests to Matthew C. Riddle, MD, Section of Diabetes L-345, Division of Endocrinology, Diabetes, and Clinical Nutrition, Oregon Health Sciences University, Portland, OR 97201.
Diabetes Care 1997 Jun; 20(6): 992-994. https://doi.org/10.2337/diacare.20.6.992
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Abstract

OBJECTIVE This study compared the effect of mild exercise while fasting on plasma glucose concentrations in subjects with NIDDM treated with extended-release glipizide and subjects not taking an oral hypoglycemic agent.

RESEARCH DESIGN AND METHODS Twenty-five moderately obese subjects with NIDDM were randomized to treatment with extended-release glipizide or placebo. After 9 weeks of treatment, they fasted overnight, took their study drug, omitted breakfast, and exercised on a treadmill for 90 min. Glucose, insulin, and C-peptide concentrations were measured before, during, and after exercise.

RESULTS On the fasting-exercise day, fasting glucose concentrations were lower (153 vs. 241 mg/dl, P < 0.01) and insulin and C-peptide concentrations higher in the extended-release glipizide group. The decrement of glucose from the fasting baseline was modest and equivalent in the two groups: 17 vs. 21 mg/dl at the end of exercise and 28 vs. 27 mg/dl after 2 h of recovery. No subject had hypoglycemic symptoms.

CONCLUSIONS Chronic use of extended-release glipizide does not enhance the hypoglycemic effect of fasting plus mild exercise for people with NIDDM. Routine lifestyle treatments for NIDDM may be continued during ongoing use of this agent.

  • Received August 26, 1996.
  • Accepted January 6, 1997.
  • Copyright © 1997 by the American Diabetes Association

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June 1997, 20(6)
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Glipizide-GITS Does Not Increase the Hypoglycemic Effect of Mild Exercise During Fasting in NIDDM
Matthew C Riddle, Patricia A McDaniel, Leslie A Tive
Diabetes Care Jun 1997, 20 (6) 992-994; DOI: 10.2337/diacare.20.6.992

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Glipizide-GITS Does Not Increase the Hypoglycemic Effect of Mild Exercise During Fasting in NIDDM
Matthew C Riddle, Patricia A McDaniel, Leslie A Tive
Diabetes Care Jun 1997, 20 (6) 992-994; DOI: 10.2337/diacare.20.6.992
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© 2019 by the American Diabetes Association. Diabetes Care Print ISSN: 0149-5992, Online ISSN: 1935-5548.