Other Clinical Trial - Genetic Testing for Type 2 Diabetes

Status Completed

Clinical Trial Summary

In this 6-month randomized, controlled trial, we examined whether providing participants with genetic test results and counseling regarding their risk for type 2 diabetes would motivate them to improve their health behaviors and lose weight to reduce their diabetes risk. We hypothesized that participants who received conventional diabetes counseling plus genetic test results and counseling would have at least 6 lb greater weight loss at 3 months than participants who received conventional diabetes counseling without genetic test results.

Clinical Trial Description

In this 6-month randomized, controlled trial, we evaluated the impact of genetic testing for type 2 diabetes on psychological, health behavior, and clinical outcomes. Eligibility criteria included age 21 to 65 years, overweight or obese (body mass index [BMI] >27 kg/m2), and no prior diagnosis of type 2 diabetes. At baseline, participants (N=601) had conventional risk factors assessed, including demographics, fasting plasma glucose (FPG), and family history. They also provided blood samples for genetic testing of TCF7L2, PPARG, and KCNJ11, three genes that confer elevated risk for development of type 2 diabetes. Participants were then randomized to receive conventional counseling plus control eye disease counseling (CR+EYE) or conventional counseling plus genetic test results (CR+G). Two to four weeks following the baseline visit, when the genetic test results were available, participants returned for a visit with a genetic counselor. All participants received conventional risk counseling based on their lifetime population risk, FPG results, and family history. Next, participants were informed of their randomization assignments; CR+EYE participants received counseling on eye diseases, whereas CR+G participants received genetic counseling. Then perceived risk, affect, self-efficacy, and readiness to change were assessed. All other outcomes were also assessed at 3 and 6 months. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

Diabetes Mellitus

Clinical Trial Details

NCT number	NCT01060540
Study type	Interventional
Source	VA Office of Research and Development
Contact
Status	Completed
Phase	N/A
Start date	August 2010
Completion date	March 2013

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT03743779` - Mastering Diabetes Pilot Study
Completed	`NCT03786978` - Pharmaceutical Care in the Reduction of Readmission Rates in Diabetes Melitus	N/A
Completed	`NCT01804803` - DIgital Assisted MONitoring for DiabeteS - I	N/A
Completed	`NCT05039970` - A Real-World Study of a Mobile Device-based Serious Health Game on Session Attendance in the National Diabetes Prevention Program	N/A
Completed	`NCT04507867` - Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III	N/A
Completed	`NCT04068272` - Safety of Bosentan in Type II Diabetic Patients	Phase 1
Completed	`NCT03243383` - Readmission Prevention Pilot Trial in Diabetes Patients	N/A
Completed	`NCT03730480` - User Performance of the CONTOUR NEXT and CONTOUR TV3 Blood Glucose Monitoring System (BGMS)	N/A
Recruiting	`NCT02690467` - Efficacy, Safety and Acceptability of the New Pen Needle 34gx3,5mm.	N/A
Completed	`NCT02229383` - Phase III Study to Evaluate Safety and Efficacy of Added Exenatide Versus Placebo to Titrated Basal Insulin Glargine in Inadequately Controlled Patients With Type II Diabetes Mellitus	Phase 3
Completed	`NCT05799976` - Text Message-Based Nudges Prior to Primary Care Visits to Increase Care Gap Closure	N/A
Completed	`NCT06181721` - Evaluating Glucose Control Using a Next Generation Automated Insulin Delivery Algorithm in Patients With Type 1 and Type 2 Diabetes	N/A
Recruiting	`NCT04489043` - Exercise, Prediabetes and Diabetes After Renal Transplantation.	N/A
Withdrawn	`NCT03319784` - Analysis for NSAID VS Corticosteroid Shoulder Injection in Diabetic Patients	Phase 4
Completed	`NCT03542084` - Endocrinology Auto-Triggered e-Consults	N/A
Completed	`NCT02229396` - Phase 3 28-Week Study With 24-Week and 52-week Extension Phases to Evaluate Efficacy and Safety of Exenatide Once Weekly and Dapagliflozin Versus Exenatide and Dapagliflozin Matching Placebo	Phase 3
Recruiting	`NCT05544266` - Rare and Atypical Diabetes Network
Completed	`NCT01892319` - An International Non-interventional Cohort Study to Evaluate the Safety of Treatment With Insulin Detemir in Pregnant Women With Diabetes Mellitus. Diabetes Pregnancy Registry
Completed	`NCT05031000` - Blood Glucose Monitoring Systems: Discounter Versus Brand	N/A
Recruiting	`NCT04039763` - RT-CGM in Young Adults at Risk of DKA	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.