NCT06246799PHASE3Recruiting

Comparative Effectiveness of Two Initial Combination Therapies in Patients With Recent Onset Diabetes

The University of Texas Health Science Center at San Antonio

Start Date

11/7/2024

Completion Date

6/30/2029

Summary

The primary purpose of this study is to evaluate the efficacy, durability, and mechanism of HbA1c reduction produced by the combination of pioglitazone plus tirzepatide compared to metformin plus sitagliptin in patients with recently diagnosed type 2 diabetes mellitus.

Detailed Description

This is a randomized open label controlled 2 arm study (with one of the arms containing 3 sub-groups) which aims to examine the effectiveness and long term effects on HbA1c reduction produced by the combination of pioglitazone plus tirzepatide versus metformin plus sitagliptin in recently diagnosed type 2 diabetes mellitus (T2DM) patients. A subgroup of patients from group 1 will be invited to participate in a sub-study which lasts for 6 months and aims at exploring the metabolic/molecular mechanisms responsible for the study results. The selection of subjects to each subgroup will be done randomly and the end of sub-study, subjects will continue therapy and follow-up from month 6 on in the main study.

Eligibility Criteria

Age Range: 18 years to 75 years

Inclusion Criteria: 1. Ability of subject to understand and the willingness to sign a written informed consent document. 2. Males and females; Age 18-75 years 3. Recently (within 5 years) diagnosed Type 2 Diabetes Mellitus (T2DM) patients 4. Drug naïve or receiving metformin monotherapy 5. HbA1c \>6.5% (no limit on upper HbA1c value); 6. Willingness to adhere to the investigational product regimen 7. Good general health 8. Stable body weight over the preceding 3 months 9. Agreement to adhere to Lifestyle Considerations throughout study duration. Exclusion Criteria: 1. positive anti-GAD (antibodies to glutamic acid decarboxylase) 2. pregnancy or plan of becoming pregnant 3. evidence of proliferative diabetic retinopathy, 4. plasma creatinine \>1.4 females or \>1.5 males; 5. presence of congestive heart failure (CHF); 6. history of cancer (\<5 years); 7. prior history of pancreatitis, 8. bladder cancer or family history of thyroid tumors; 9. presence of hematuria in the urine analysis.

Interventions

DRUG

Tirzepatide

DRUG

Pioglitazone

DRUG

Sitagliptin

DRUG

Metformin HCI XR

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Conditions

Type 2 Diabetes (Adult Onset)

Locations

University Health System Texas Diabetic Institute

San Antonio, Texas 78207

United States

UT Health Science Center

San Antonio, Texas 78229

United States