Effect of Linagliptin + Metformin on Patients Who do Not Achieve Normoglucemia With Metformine

2019-09-18 03:27:38 | BioPortfolio


The goal of this protocol is to evaluate the effect of addhing linagliptin to patients with prediabetes who do not reverse to normoglycemia after 12 months of treatment with metformin alone. The duration of the study will be 6 months, and it is primarily a efficacy study. Main outcomes will be glucose levels during OGTT, insulin secretion and pancreatic beta cell function measured by the disposition index derived from the OGTT.


Randomization and masking. Patients will be randomly assigned in a 1:1 ratio to receive linagliptin/metformin 2.5/850mg every 12 h + lifestyle modification program, or metformin 850mg every 12 h + lifestyle modification program during 6 months. Randomization will be performed using an electronic random numbers table by a Nutritionist not involved in the study. Participants and investigators involved in the patients follow-up and outcome measurements will be masked to treatment allocation during the entire study.

Patients will have a follow-up visit every month. Every appointment is about 30-45 minutes; medications tolerance and side effects will be recorded in every patients´ visit. Nutritional and physical activity assessment according to the patient´s weight will be performed by a Nutritionist every month. Monthly adherence to medications will be evaluated by pill counting; nutritional adherence and energy intake will be evaluated at 6 months by a food frequency questionnaire, and physical activity at 0 and 6 months. At basal and at 6 months patients will have an OGTT. Primary objective is to evaluate at 6 months glucose profile during OGTT, insulin secretion and pancreatic β-cell function by the OGTT DI, and regression to normoglycemia; T2D will be diagnosed and confirmed by at least two consecutive measurements of the same criteria: glycated haemoglobin ≥ 6.5 %, fasting glucose ≥ 126mg/dl, or 2 h glucose ≥ 200 mg/dl.

Study Design


Prediabetic State


Linagliptin / Metformin Oral Tablet, Metformin


Universidad de Guanajuato




Universidad de Guanajuato

Results (where available)

View Results


Published on BioPortfolio: 2019-09-18T03:27:38-0400

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Medical and Biotech [MESH] Definitions

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A pharmaceutical preparation of sitagliptin phosphate and metformin hydrochloride that is used in the treatment of TYPE 2 DIABETES.

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An analog of GLUCAGON-LIKE PEPTIDE 1 and agonist of the GLUCAGON-LIKE PEPTIDE 1 RECEPTOR that is used as a HYPOGLYCEMIC AGENT and supplemental therapy in the treatment of DIABETES MELLITUS by patients who do not respond to METFORMIN.

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