Dipeptidyl peptidase-4 inhibitors and fracture risk: an updated meta-analysis of randomized clinical trials

Sci Rep. 2016 Jul 7:6:29104. doi: 10.1038/srep29104.

Abstract

Data on the effects of dipeptidyl peptidase-4 (DPP-4) inhibitors on fracture risk are conflicting. Here, we performed a systematic review and meta-analysis of randomized controlled trials (RCTs) assessing the effects of DPP-4 inhibitors. Electronic databases were searched for relevant published articles, and unpublished studies presented at ClinicalTrials.gov were searched for relevant clinical data. Eligible studies included prospective randomized trials evaluating DPP-4 inhibitors versus placebo or other anti-diabetic medications in patients with type 2 diabetes. Study quality was determined using Jadad scores. Statistical analyses were performed to calculate the risk ratios (RRs) and 95% confidence intervals (CIs) using fixed-effects models. There were 62 eligible RCTs with 62,206 participants, including 33,452 patients treated with DPP-4 inhibitors. The number of fractures was 364 in the exposed group and 358 in the control group. The overall risk of fracture did not differ between patients exposed to DPP-4 inhibitors and controls (RR, 0.95; 95% CI, 0.83-1.10; P = 0.50). The results were consistent across subgroups defined by type of DPP-4 inhibitor, type of control, and length of follow-up. The study showed that DPP-4 inhibitor use does not modify the risk of bone fracture compared with placebo or other anti-diabetic medications in patients with type 2 diabetes.

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't
  • Systematic Review

MeSH terms

  • Diabetes Mellitus, Type 2 / complications
  • Diabetes Mellitus, Type 2 / drug therapy*
  • Diabetes Mellitus, Type 2 / physiopathology
  • Dipeptidyl Peptidase 4 / genetics*
  • Dipeptidyl-Peptidase IV Inhibitors / therapeutic use*
  • Fractures, Bone / drug therapy*
  • Fractures, Bone / etiology
  • Glycated Hemoglobin
  • Humans
  • Hypoglycemic Agents / therapeutic use
  • Prospective Studies
  • Randomized Controlled Trials as Topic
  • Risk Factors

Substances

  • Dipeptidyl Peptidase 4
  • Dipeptidyl-Peptidase IV Inhibitors
  • Glycated Hemoglobin
  • Hypoglycemic Agents
  • DPP4 protein, human