PMID- 26703273 OWN - NLM STAT- MEDLINE DCOM- 20161005 LR - 20221207 IS - 1872-8227 (Electronic) IS - 0168-8227 (Linking) VI - 112 DP - 2016 Feb TI - Progression to treatment failure among Chinese patients with type 2 diabetes initiated on metformin versus sulphonylurea monotherapy--The Hong Kong Diabetes Registry. PG - 57-64 LID - S0168-8227(15)00459-3 [pii] LID - 10.1016/j.diabres.2015.11.003 [doi] AB - AIMS: To assess the development of treatment failure in Chinese patients with type 2 diabetes mellitus (T2DM) initiated on metformin or sulphonylurea (SU) monotherapy, with consideration of various potential sources of biases. METHODS: A 1:1-matched new metformin and SU user cohort on immortal time and mean propensity score after multiple imputation was selected from a cohort of 5889 Chinese patients with T2DM. Treatment failure was defined as progression to (i) combination oral anti-hyperglycemia drug therapy, (ii) insulin use, or (iii) a treatment haemoglobin A1c (HbA1c) >7.5% (58 mmol/mol). Stratified Cox regression analysis on the matched pairs was employed to examine the associations between initial monotherapy and onset of treatment failure. RESULTS: Of 554 new metformin and 840 new SU users, 380 were matched. During a median follow-up duration of 3 years, 173 (45.6%) metformin users and 220 (57.9%) SU users experienced treatment failure (annual failure rates of 15% and 19%, respectively). The median time from monotherapy starting to treatment failure was 3.0 [inter-quartile range (IQR): 1.8-5.4] years for metformin users, versus 1.8 (IQR: 0.9-4.1) years for SU users (p<0.001). Stratified Cox regression analysis showed significantly lower risk of treatment failure for metformin users (HR [95% CI], 0.62[0.47-0.81]; p<0.001). Consistent results were found in analyses based on traditional adjustment schemes with or without imputation. CONCLUSIONS: By systematically incorporating new-user design, multiple imputation and matching methods, we found that Chinese patients with T2DM initiated on metformin monotherapy were associated with a significant delay in the onset of treatment failure compared to SU monotherapy. CI - Copyright (c) 2015 Elsevier Ireland Ltd. All rights reserved. FAU - Jiang, Guozhi AU - Jiang G AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Luk, Andrea O AU - Luk AO AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Yang, Xilin AU - Yang X AD - Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China. FAU - Wang, Ying AU - Wang Y AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Tam, Claudia H T AU - Tam CHT AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Lau, Siu Him AU - Lau SH AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Ozaki, Risa AU - Ozaki R AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Kong, Alice P S AU - Kong APS AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, Hong Kong; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Tong, Peter C AU - Tong PC AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Chow, Chun Chung AU - Chow CC AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - Chan, Juliana C N AU - Chan JCN AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, Hong Kong; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong. FAU - So, Wing Yee AU - So WY AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong. Electronic address: wingyeeso@cuhk.edu.hk. FAU - Ma, Ronald C W AU - Ma RCW AD - Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, Hong Kong; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong. Electronic address: rcwma@cuhk.edu.hk. LA - eng PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20151123 PL - Ireland TA - Diabetes Res Clin Pract JT - Diabetes research and clinical practice JID - 8508335 RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (Hypoglycemic Agents) RN - 0 (Sulfonylurea Compounds) RN - 9100L32L2N (Metformin) SB - IM MH - Blood Glucose/metabolism MH - Diabetes Mellitus, Type 2/blood/*drug therapy/epidemiology MH - Disease Progression MH - Dose-Response Relationship, Drug MH - Female MH - Follow-Up Studies MH - Glycated Hemoglobin/metabolism MH - Hong Kong/epidemiology MH - Humans MH - Hypoglycemic Agents/therapeutic use MH - Male MH - Metformin/*administration & dosage MH - Middle Aged MH - Outpatients MH - Propensity Score MH - *Registries MH - Sulfonylurea Compounds/*administration & dosage MH - Time Factors MH - Treatment Failure OTO - NOTNLM OT - Diabetes OT - Drug use bias OT - Metformin OT - Sulphonylurea OT - Treatment failure EDAT- 2015/12/26 06:00 MHDA- 2016/10/07 06:00 CRDT- 2015/12/26 06:00 PHST- 2015/08/03 00:00 [received] PHST- 2015/10/07 00:00 [revised] PHST- 2015/11/09 00:00 [accepted] PHST- 2015/12/26 06:00 [entrez] PHST- 2015/12/26 06:00 [pubmed] PHST- 2016/10/07 06:00 [medline] AID - S0168-8227(15)00459-3 [pii] AID - 10.1016/j.diabres.2015.11.003 [doi] PST - ppublish SO - Diabetes Res Clin Pract. 2016 Feb;112:57-64. doi: 10.1016/j.diabres.2015.11.003. Epub 2015 Nov 23.