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Abstract
Objective: A precision approach to type 2 diabetes therapy would aim to target treatment according to patient characteristics. We examined if measures of insulin resistance and secretion were associated with glycemic response to dipeptidyl peptidase 4 (DPP-4) inhibitor therapy.
Research Design and Methods: We evaluated whether markers of insulin resistance and insulin secretion were associated with 6-month glycemic response in a prospective study of noninsulin-treated participants starting DPP-4 inhibitor therapy (Predicting Response to Incretin Based Agents [PRIBA] study; n = 254), with replication for routinely available markers in U.K. electronic health care records (Clinical Practice Research Datalink [CPRD]; n = 23,001). In CPRD, we evaluated associations between baseline markers and 3-year durability of response. To test the specificity of findings, we repeated analyses for glucagon-like peptide 1 (GLP-1) receptor agonists (PRIBA, n = 339; CPRD, n = 4,464).
Results: In PRIBA, markers of higher insulin resistance (higher fasting C-peptide [P = 0.03], HOMA2 insulin resistance [P = 0.01], and triglycerides [P < 0.01]) were associated with reduced 6-month HbA1c response to DPP-4 inhibitors. In CPRD, higher triglycerides and BMI were associated with reduced HbA1c response (both P < 0.01). A subgroup defined by obesity (BMI ≥30 kg/m2) and high triglycerides (≥2.3 mmol/L) had reduced 6-month response in both data sets (PRIBA HbA1c reduction, 5.3 [95% CI 1.8, 8.6] mmol/mol [0.5%] [obese and high triglycerides] vs. 11.3 [8.4, 14.1] mmol/mol [1.0%] [nonobese and normal triglycerides]; P = 0.01). In CPRD, the obese, high triglycerides subgroup also had less durable response (hazard ratio 1.28 [1.16, 1.41]; P < 0.001). There was no association between markers of insulin resistance and response to GLP-1 receptor agonists.
Conclusions: Markers of higher insulin resistance are consistently associated with reduced glycemic response to DPP-4 inhibitors. This finding provides a starting point for the application of a precision diabetes approach to DPP-4 inhibitor therapy.
Original language | English |
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Pages (from-to) | 705-712 |
Number of pages | 8 |
Journal | Diabetes Care |
Volume | 41 |
Issue number | 4 |
Early online date | 31 Jan 2018 |
DOIs | |
Publication status | Published - Apr 2018 |
Keywords
- Journal article
- Precision Medicine/methods
- Predictive Value of Tests
- Prognosis
- Humans
- Middle Aged
- Insulin Resistance
- Male
- Treatment Outcome
- United Kingdom
- Biomarkers/metabolism
- Diabetes Mellitus, Type 2/diagnosis
- Blood Glucose/drug effects
- Female
- Hypoglycemic Agents/therapeutic use
- Aged
- Primary Health Care
- Retrospective Studies
- Dipeptidyl-Peptidase IV Inhibitors/therapeutic use
ASJC Scopus subject areas
- Advanced and Specialised Nursing
- Internal Medicine
- Endocrinology, Diabetes and Metabolism
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Dive into the research topics of 'Precision Medicine in Type 2 Diabetes: Clinical Markers of Insulin Resistance Are Associated With Altered Short- and Long-Term Glycemic Response to DPP-4 Inhibitor Therapy'. Together they form a unique fingerprint.Projects
- 1 Finished
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Stratified Medicine in Type 2 Diabetes: Insights from the Study of Drug Response (New Investigator Award)
Pearson, E. (Investigator)
16/02/15 → 15/08/21
Project: Research