Impact of Glucose-Lowering Medications on Health-Related Quality of Life in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study (GRADE)

Andrea L. Cherrington, Divisions of Preventive and General Internal Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL.
Mark T. Tripputi, The Biostatistics Center, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Rockville, MD.
Naji Younes, The Biostatistics Center, Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Rockville, MD.
William H. Herman, Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI.
Aimee Katona, Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI.
Erik J. Groessl, Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, La Jolla, CA.
Jacqueline Craig, University of Cincinnati, Cincinnati, OH.
Jeffrey S. Gonzalez, Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY.
Rajesh Garg, Department of Medicine, University of Miami, Miami, FL.
Sabina Casula, Endocrinology, Diabetes, and Metabolism, Bruce W. Carter Department of Veterans Affairs Medical Center, Miami, FL.
Shihchen Kuo, Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI.
Hermes J. Florez, Department of Medicine, University of Miami, Miami, FL.

Document Type

Journal Article

Publication Date

4-1-2024

Journal

Diabetes care

Volume

47

Issue

4

DOI

10.2337/dc23-1648

Abstract

OBJECTIVE: Diabetes is associated with reduced health-related quality of life (HRQoL). Information on the relationship between HRQoL and glucose-lowering medications in recently diagnosed type 2 diabetes (T2D) is limited. We assessed changes in HRQoL in participants with T2D receiving metformin plus one of four glucose-lowering medications in Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness Study (GRADE). RESEARCH DESIGN AND METHODS: A total of 5,047 participants, baseline mean age 57 years, with <10 years T2D duration and glycated hemoglobin level 6.8-8.5% and taking metformin monotherapy, were randomly assigned to glargine, glimepiride, liraglutide, or sitagliptin. HRQoL was evaluated at baseline for 4,885 participants, and at years 1, 2, and 3, with use of the self-administered version of the Quality of Well-being Scale (QWB-SA) and SF-36 physical (PCS) and mental (MCS) component summary scales. Linear models were used to analyze changes in HRQoL over time in intention-to-treat analyses. RESULTS: None of the medications worsened HRQoL. There were no differences in QWB-SA or MCS by treatment group at any time point. PCS scores improved with liraglutide versus other groups at year 1 only. Greater weight loss during year 1 explained half the improvement in PCS scores with liraglutide versus glargine and glimepiride. Liraglutide participants in the upper tertile of baseline BMI showed the greatest improvement in PCS scores at year 1. CONCLUSIONS: Adding liraglutide to metformin in participants within 10 years of T2D diagnosis showed improvement in the SF-36 PCS in comparisons with the other medications at 1 year, which was no longer significant at years 2 and 3. Improvement was related to weight loss and baseline BMI.

Department

Biostatistics and Bioinformatics

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