Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials

<strong>Objective:</strong> Previous studies have suggested that niacin treatment raises glucose levels in patients with diabetes and may increase the risk of developing diabetes. We undertook a meta-analysis of published and unpublished data from randomised trials to confirm whether an...

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Main Authors: Goldie, C, Taylor, A, Nguyen, P, McCoy, C, Zhao, X, Preiss, D
Format: Journal article
Published: BMJ Publishing Group 2016
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author Goldie, C
Taylor, A
Nguyen, P
McCoy, C
Zhao, X
Preiss, D
author_facet Goldie, C
Taylor, A
Nguyen, P
McCoy, C
Zhao, X
Preiss, D
author_sort Goldie, C
collection OXFORD
description <strong>Objective:</strong> Previous studies have suggested that niacin treatment raises glucose levels in patients with diabetes and may increase the risk of developing diabetes. We undertook a meta-analysis of published and unpublished data from randomised trials to confirm whether an association exists between niacin and new-onset diabetes. <strong>Methods:</strong> We searched Medline, EMBASE and the Cochrane Central Register of Controlled Trials, from 1975 to 2014, for randomised controlled trials of niacin primarily designed to assess its effects on cardiovascular endpoints and cardiovascular surrogate markers. We included trials with ≥50 non-diabetic participants and average follow-up of ≥24 weeks. Published data were tabulated and unpublished data sought from investigators. We calculated risk ratios (RR) for new-onset diabetes with random-effects meta-analysis. Heterogeneity between trials was assessed using the I2 statistic. <strong>Results:</strong> In 11 trials with 26 340 non-diabetic participants, 1371 (725/13 121 assigned niacin; 646/13 219 assigned control) were diagnosed with diabetes during a weighted mean follow-up of 3.6 years. Niacin therapy was associated with a RR of 1.34 (95% CIs 1.21 to 1.49) for new-onset diabetes, with limited heterogeneity between trials (I2=0.0%, p=0.87). This equates to one additional case of diabetes per 43 (95% CI 30 to 70) initially non-diabetic individuals who are treated with niacin for 5 years. Results were consistent regardless of whether participants received background statin therapy (p for interaction=0.88) or combined therapy with laropiprant (p for interaction=0.52). <strong>Conclusions:</strong> Niacin therapy is associated with a moderately increased risk of developing diabetes regardless of background statin or combination laropiprant therapy.
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spelling oxford-uuid:dc30b5a4-587f-46ac-b401-140dd58578f02022-03-27T09:16:00ZNiacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trialsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dc30b5a4-587f-46ac-b401-140dd58578f0Symplectic Elements at OxfordBMJ Publishing Group2016Goldie, CTaylor, ANguyen, PMcCoy, CZhao, XPreiss, D<strong>Objective:</strong> Previous studies have suggested that niacin treatment raises glucose levels in patients with diabetes and may increase the risk of developing diabetes. We undertook a meta-analysis of published and unpublished data from randomised trials to confirm whether an association exists between niacin and new-onset diabetes. <strong>Methods:</strong> We searched Medline, EMBASE and the Cochrane Central Register of Controlled Trials, from 1975 to 2014, for randomised controlled trials of niacin primarily designed to assess its effects on cardiovascular endpoints and cardiovascular surrogate markers. We included trials with ≥50 non-diabetic participants and average follow-up of ≥24 weeks. Published data were tabulated and unpublished data sought from investigators. We calculated risk ratios (RR) for new-onset diabetes with random-effects meta-analysis. Heterogeneity between trials was assessed using the I2 statistic. <strong>Results:</strong> In 11 trials with 26 340 non-diabetic participants, 1371 (725/13 121 assigned niacin; 646/13 219 assigned control) were diagnosed with diabetes during a weighted mean follow-up of 3.6 years. Niacin therapy was associated with a RR of 1.34 (95% CIs 1.21 to 1.49) for new-onset diabetes, with limited heterogeneity between trials (I2=0.0%, p=0.87). This equates to one additional case of diabetes per 43 (95% CI 30 to 70) initially non-diabetic individuals who are treated with niacin for 5 years. Results were consistent regardless of whether participants received background statin therapy (p for interaction=0.88) or combined therapy with laropiprant (p for interaction=0.52). <strong>Conclusions:</strong> Niacin therapy is associated with a moderately increased risk of developing diabetes regardless of background statin or combination laropiprant therapy.
spellingShingle Goldie, C
Taylor, A
Nguyen, P
McCoy, C
Zhao, X
Preiss, D
Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials
title Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials
title_full Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials
title_fullStr Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials
title_full_unstemmed Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials
title_short Niacin therapy and the risk of new-onset diabetes: a meta-analysis of randomised controlled trials
title_sort niacin therapy and the risk of new onset diabetes a meta analysis of randomised controlled trials
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