PMID- 34343296 OWN - NLM STAT- MEDLINE DCOM- 20211228 LR - 20221207 IS - 1945-7197 (Electronic) IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 106 IP - 12 DP - 2021 Nov 19 TI - Insulin Secretion Predicts the Response to Antidiabetic Therapy in Patients With New-onset Diabetes. PG - 3497-3504 LID - 10.1210/clinem/dgab403 [doi] AB - CONTEXT: The results of the present study demonstrate that beta cell function in newly diagnosed T2DM patients is the key predictor of response to glucose lowering medications and provides a practical tool (C-Pep120 /C-Pep0) to guide the choice of glucose lowering agent. OBJECTIVE: This work aims to identify predictors for individualization of antidiabetic therapy in patients with new-onset type 2 diabetes mellitus (T2DM). METHODS: A total of 261 drug-naive participants in the Efficacy and Durability of Initial Combination Therapy for Type 2 Diabetes (EDICT) study, with new-onset diabetes, were randomly assigned in a single-center study to receive 1) metformin followed by glipizide and then insulin glargine on failure to achieve glycated hemoglobin A1c (HbA1c) less than 6.5%, or 2) initial triple therapy with metformin/pioglitazone/exenatide. Each patient received a 75-g oral glucose tolerance test (OGTT) prior to start of therapy. Factors that predicted response to therapy were identified using the area under the receiver operating characteristic curve method. RESULTS: Thirty-nine patients started and maintained the treatment goal (HbA1c < 6.5%) on metformin only, and did not require intensification of antihyperglycemic therapy; 54 patients required addition of glipizide to metformin; and 47 patients required insulin addition to metformin plus glipizide for glucose control. The plasma C-peptide concentration (C-Pep)120/C-Pep0 ratio during the OGTT was the strongest predictor of response to therapy. Patients with a ratio less than 1.78 were more likely to require insulin for glucose control, whereas patients with a ratio greater than 2.65 were more likely to achieve glucose control with metformin monotherapy. In patients started on initial triple therapy, the HbA1c decreased independently of the C-Pep120/C-Pep0 ratio. CONCLUSION: The increase in C-Pep above fasting following glucose load predicts the response to antihyperglycemic therapy in patients with new-onset diabetes. C-Pep120/C-Pep0 provides a useful tool for the individualization of antihyperglycemic therapy in patients with new-onset T2DM. CI - (c) The Author(s) 2021. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Abdelgani, S AU - Abdelgani S AD - Division of Diabetes, University of Texas Health Science Center and Texas Diabetes Institute, San Antonio, Texas, USA. FAU - Puckett, C AU - Puckett C AD - Division of Diabetes, University of Texas Health Science Center and Texas Diabetes Institute, San Antonio, Texas, USA. FAU - Adams, J AU - Adams J AD - Division of Diabetes, University of Texas Health Science Center and Texas Diabetes Institute, San Antonio, Texas, USA. FAU - Triplitt, C AU - Triplitt C AD - Division of Diabetes, University of Texas Health Science Center and Texas Diabetes Institute, San Antonio, Texas, USA. FAU - DeFronzo, R A AU - DeFronzo RA AUID- ORCID: 0000-0003-3839-1724 AD - Division of Diabetes, University of Texas Health Science Center and Texas Diabetes Institute, San Antonio, Texas, USA. FAU - Abdul-Ghani, M AU - Abdul-Ghani M AUID- ORCID: 0000-0003-4556-1787 AD - Division of Diabetes, University of Texas Health Science Center and Texas Diabetes Institute, San Antonio, Texas, USA. LA - eng GR - R01 DK107680/DK/NIDDK NIH HHS/United States GR - DK107680/DK/NIDDK NIH HHS/United States PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Biomarkers) RN - 0 (Blood Glucose) RN - 0 (C-Peptide) RN - 0 (Glycated Hemoglobin A) RN - 0 (Hypoglycemic Agents) RN - 0 (Insulin) RN - 0 (hemoglobin A1c protein, human) SB - IM MH - Adult MH - Biomarkers/*blood MH - Blood Glucose/analysis MH - C-Peptide/*blood MH - Diabetes Mellitus, Type 2/blood/*drug therapy/pathology MH - Fasting MH - Female MH - Follow-Up Studies MH - Glycated Hemoglobin/*analysis MH - Humans MH - Hypoglycemic Agents/*therapeutic use MH - Insulin/*blood MH - *Insulin Secretion MH - Male MH - Middle Aged MH - Prognosis PMC - PMC8787634 OTO - NOTNLM OT - glucose control OT - insulin secretion OT - type 2 diabetes EDAT- 2021/08/04 06:00 MHDA- 2021/12/29 06:00 PMCR- 2022/08/03 CRDT- 2021/08/03 17:28 PHST- 2021/02/27 00:00 [received] PHST- 2021/08/04 06:00 [pubmed] PHST- 2021/12/29 06:00 [medline] PHST- 2021/08/03 17:28 [entrez] PHST- 2022/08/03 00:00 [pmc-release] AID - 6338179 [pii] AID - dgab403 [pii] AID - 10.1210/clinem/dgab403 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2021 Nov 19;106(12):3497-3504. doi: 10.1210/clinem/dgab403.