Clinical trial NCT05037045: Effect of Gene Polymorphisms on GLP-1 Receptor Agonists Response in Patients With T2DM
Official title: Department of Pharmacy, the Affiliated Hospital of Xuzhou Medical University
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Type 2 Diabetes Mellitus
Keywords: T2DM
GLP-1 RA
gene polymorphism
Lead sponsor: The Affiliated Hospital of Xuzhou Medical University
Sponsor class: OTHER
First posted: 2021-09-08
Enrollment: 338
Sex: ALL
Minimum age (years): 25
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: 1. This is an prospective study to evaluate the effect of gene polymorphisms on therapeutic responses to glucagon like peptide-1 receptor agonist (GLP-1 RA) in patients with T2DM.
2. T2DM patients and healthy subjects were recruited to identify genotypes and detect the level of T2DM susceptibility genes expression levels in the plasma of healthy participants and T2DM patients.
3. This is a retrospective cohort study of patients with T2DM who were treated with exenatide twice daily as a part of their diabetes care for at least 12 months.

Detailed description: Many guidelines recommend the preferential use of GLP-1 RA after single drug or multiple oral hypoglycemic drugs and basic insulin therapy for poor glycemic control. However, the clinical responsiveness to GLP-1 RA varies among patients with T2DM. It has been reported that genetic factors are the important reasons for individual variation in therapeutic response of antidiabetic drugs. At present, dozens of gene loci related to therapeutic response of antidiabetic drugs have been screened, which are of great clinical significance in guiding clinical individualized treatment, improving the efficacy and safety of drugs, and reducing the drug costs.

GLP-1 RA was injected subcutaneously at standard dose and frequency for consecutive 6 months. The patients were visited at moths 0, 3, and 6, and medical histories, physical examinations, and routine clinical laboratory tests were performed during these visits. The general anthropometric parameters considered for this study were height (m), weight (kg), and waist and hip circumferences (cm) at baseline, 3 months and 6months after exenatide treatment. After an overnight fast, venous blood samples were obtained both in the fasting state and 2 h later during a standard 75-g oral glucose tolerance test. Parameters were measured at baseline, the end of months 3 and 6 after administration of exenatide.

Peripheral blood was collected at follow-up and genomic DNA was extracted from peripheral blood leucocytes. We further explored the association of gene polymorphisms with the therapeutic effect of GLP-1 RA in patients with T2DM.

Eligibility criteria: Inclusion Criteria:

1. a diagnosis of T2DM；
2. a body mass index (BMI) of 20-35 kg/m2；
3. an HbA1c of 7.0%-12%, an age of 25-70 years；
4. required data available at baseline, 3 months, and 6 months after GLP-1 RA therapy.

Exclusion Criteria:

1. Patients with serious diseases such as acute myocardial infarction, cerebral vascular accident, trauma, kidney or liver diseases, severe gastrointestinal dysfunction, and history of pancreatitis；
2. patients receiving GLP-1 analogues, weight loss drugs, glucocorticoids, drugs affecting gastrointestinal peristalsis in the past 3 months；
3. those with missing data at the time points of baseline, 3 months, and 6 months after GLP-1 RA therapy.

Primary outcomes:
measure: Change from baseline HbA1c at 1 month
timeFrame: 1 month after GLP-1 RA treatment
measure: Change from baseline FPG at 1 month
timeFrame: 1 month after GLP-1 RA treatment
measure: Change from baseline PPG at 1 month
timeFrame: 1 month after GLP-1 RA treatment
measure: Change from baseline serum lipids at 1 month
timeFrame: 1 month after GLP-1 RA treatment
measure: Change from baseline HbA1c at 3 month
timeFrame: 3 month after GLP-1 RA treatment
measure: Change from baseline FPG at 3 month
timeFrame: 3 month after GLP-1 RA treatment
measure: Change from baseline PPG at 3 month
timeFrame: 3 month after GLP-1 RA treatment
measure: Change from baseline serum lipids at 3 month
timeFrame: 3 month after GLP-1 RA treatment
measure: Change from baseline HbA1c at 6 month
timeFrame: 6 month after GLP-1 RA treatment
measure: Change from baseline FPG at 6 month
timeFrame: 6 month after GLP-1 RA treatment
measure: Change from baseline PPG at 6 month
timeFrame: 6 month after GLP-1 RA treatment
measure: Change from baseline serum lipids at 6 month
timeFrame: 6 month after GLP-1 RA treatment
Secondary outcomes:
measure: incidence and severity of possible adverse reaction within 1 month after GLP-1 RA treatment
timeFrame: 1 month after GLP-1 RA treatment
measure: incidence and severity of possible adverse reaction within 3 month after GLP-1 RA treatment
timeFrame: 3 month after GLP-1 RA treatment
measure: incidence and severity of possible adverse reaction within 6 month after GLP-1 RA treatment
timeFrame: 6 month after GLP-1 RA treatment
Other outcomes:
Locations:
city: Xuzhou
country: China
facility: Department of Endocrinology
state: Jiangsu
Study officials:
affiliation: The Affiliated Hospital of Xuzhou Medical University
name: Renhao Wang, Ph.D
role: STUDY_DIRECTOR
References: