Efficacy of acarbose and metformin in newly diagnosed type 2 diabetes patients stratified by HbA1c levels
Abstract
BACKGROUND: The aim of the present study was to investigate whether the therapeutic efficacy of acarbose and metformin is correlated with baseline HbA1c levels in Chinese patients with newly diagnosed type 2 diabetes mellitus (T2DM).
METHODS: Data for 711 subjects were retrieved from the MARCH (Metformin and AcaRbose in Chinese as initial Hypoglycemic treatment) trial database and reviewed retrospectively. Patients were grouped according to baseline HbA1c levels (8%) and the results for these three groups were compared between acarbose and metformin treatments.
RESULTS: Acarbose and metformin treatment significantly improved T2DM-associated parameters (weight, fasting plasma glucose [FPG], postprandial glucose [PPG], glucagon-like peptide-1 [GLP-1], HOMA-IR, and total cholesterol) across all HbA1c levels. Acarbose decreased PPG and HOMA-β significantly more than metformin, but only in subjects with lower baseline HbA1c (PPG in the <7% and 7%-8%, HOMA-β in the <7% groups; all P < 0.05). Acarbose decreased triglyceride (TG) levels, and the areas under the curve (AUC) for insulin and glucagon more than metformin at all HbA1c levels (P < 0.05). After 24 weeks treatment, metformin decreased FPG levels significantly more than acarbose for all baseline HbA1c groups (all P < 0.001). With the exception of FPG, PPG, and TG levels, differences between the two treatment groups observed at 24 weeks were not detected at 48 weeks.
CONCLUSIONS: Acarbose decreased PPG and TG and spared the…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 711 participants or records.
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