A Randomized Trial of Diabetes Prevention Through Lifestyle Change in India
NCT ID: NCT01283308
Last Updated: 2016-10-31
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
599 participants
INTERVENTIONAL
2009-05-31
2013-11-30
Brief Summary
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Detailed Description
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Methods: D-CLIP, a translational research project adapted from the methods and curriculum developed and tested for efficacy in the Diabetes Prevention Program, utilizes innovated methods (a step-wise model of diabetes prevention with lifestyle and metformin added when needed; inclusion of individuals with isolated impaired glucose tolerance, isolated impaired fasting glucose, and both; classes team-taught by professionals and trained community educators) with the goals of increasing diabetes prevention, community acceptability, and long-term dissemination and sustainability of the program. The primary outcome is, diabetes incidence, and secondary outcomes are cost-effectiveness, changes in anthropometric measures, plasma lipids, blood pressure, blood glucose, and HbA1c, and program acceptability and sustainability assessed using a mixed methods approach.
Conclusion: D-CLIP, a low-cost, community-based, research program, addresses the key components of translational research and can be used as a model for prevention of chronic diseases in other low- and middle-income country settings.
Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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Standard of Care
Participants randomized to the standard of care group will receive standard lifestyle advice for diabetes prevention consistent with expert recommendations for a healthy lifestyle, including losing 5-10% of their excess body weight, following standard dietary recommendations to reduce calorie and fat intake, and exercising at least 150 minutes per week.
Standard of Care
Participants randomized to the standard of care group will meet with a physician and a dietician, attend one class/awareness lecture on diabetes prevention through weight loss and diet change and one class on exercise, and receive handouts reinforcing what they learn in class and with the dietician, fitness consultant, and physician.
Lifestyle Intervention
Intervention arm participants will participate in a step-wise model of diabetes prevention with the goal of reducing diabetes risk, primarily through (1) a weight loss of at least 7% and (2) 150 minutes or more per week of moderate level physical activity.
Lifestyle Intervention
Intervention arm participants will attend 6 months of weekly classes where they will be taught the skills necessary to reach these goals. The curriculum for the classes is based on the DPP lesson plans. Social support will be provided by trained lay health educators and peer support groups. Participants who remain at highest risk of T2DM after four or more months in the program will be prescribed metformin in addition to continuing the lifestyle program. Metformin dosages will start at 500 mg per day, and, when appropriate, will increase to 1000 mg per day (given as 500 mg twice per day). This group will be comprised of individuals who have (1) Fasting plasma glucose values of 100 mg/dl or more and (2) elevated fasting HbA1c measures of 5.7% or more.
Interventions
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Lifestyle Intervention
Intervention arm participants will attend 6 months of weekly classes where they will be taught the skills necessary to reach these goals. The curriculum for the classes is based on the DPP lesson plans. Social support will be provided by trained lay health educators and peer support groups. Participants who remain at highest risk of T2DM after four or more months in the program will be prescribed metformin in addition to continuing the lifestyle program. Metformin dosages will start at 500 mg per day, and, when appropriate, will increase to 1000 mg per day (given as 500 mg twice per day). This group will be comprised of individuals who have (1) Fasting plasma glucose values of 100 mg/dl or more and (2) elevated fasting HbA1c measures of 5.7% or more.
Standard of Care
Participants randomized to the standard of care group will meet with a physician and a dietician, attend one class/awareness lecture on diabetes prevention through weight loss and diet change and one class on exercise, and receive handouts reinforcing what they learn in class and with the dietician, fitness consultant, and physician.
Eligibility Criteria
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Inclusion Criteria
* Aged 20-65 years
* A BMI \>22 kg/m2 and/or a waist circumference \>90 cm for men and \>80 cm for women
* No prior diabetes diagnosis, except for gestational diabetes
* At high risk of developing diabetes (pre-diabetes) as defined by a casual capillary glucose greater than or equal to 110 (measured during screening) AND Baseline fasting glucose of 100-125 mg/dL and/or 2-hour post-load glucose of 140-199 mg/dL
* Willingness to consent to randomization
* Currently pregnant or breastfeeding
* History of or biomarkers indicating heart disease, serious illness, cancer diagnosis in the past 5 years, or other conditions that may impede or prohibit participation in an unsupervised diet change and physical activity program.
20 Years
65 Years
ALL
Yes
Sponsors
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Madras Diabetes Research Foundation
OTHER
Emory University
OTHER
Responsible Party
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Venkat Narayan
Hubert Professor of Global Health and Epidemiology
Principal Investigators
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Viswanathan Mohan, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
Madras Diabetes Research Foundation/Dr. Mohan's Diabetes Specialities Centre
K.M. Venkat Narayan, MD
Role: PRINCIPAL_INVESTIGATOR
Emory University
Locations
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Madras Diabetes Research Foundation
Chennai, Tamil Nadu, India
Countries
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References
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Weber MB, Ranjani H, Anjana RM, Mohan V, Narayan KM, Gazmararian JA. Behavioral and psychosocial correlates of adiposity and healthy lifestyle in Asian Indians. Prim Care Diabetes. 2015 Dec;9(6):418-25. doi: 10.1016/j.pcd.2015.01.012. Epub 2015 Feb 26.
Staimez LR, Weber MB, Ranjani H, Ali MK, Echouffo-Tcheugui JB, Phillips LS, Mohan V, Narayan KM. Evidence of reduced beta-cell function in Asian Indians with mild dysglycemia. Diabetes Care. 2013 Sep;36(9):2772-8. doi: 10.2337/dc12-2290. Epub 2013 Apr 17.
Weber MB, Ranjani H, Meyers GC, Mohan V, Narayan KM. A model of translational research for diabetes prevention in low and middle-income countries: The Diabetes Community Lifestyle Improvement Program (D-CLIP) trial. Prim Care Diabetes. 2012 Apr;6(1):3-9. doi: 10.1016/j.pcd.2011.04.005. Epub 2011 May 26.
Ranjani H, Weber MB, Anjana RM, Lakshmi N, Narayan KMV, Mohan V. Recruitment challenges in a diabetes prevention trial in a low- and middle-income setting. Diabetes Res Clin Pract. 2015 Oct;110(1):51-59. doi: 10.1016/j.diabres.2015.07.013. Epub 2015 Aug 13.
Anjana RM, Ranjani H, Unnikrishnan R, Weber MB, Mohan V, Narayan KM. Exercise patterns and behaviour in Asian Indians: data from the baseline survey of the Diabetes Community Lifestyle Improvement Program (D-CLIP). Diabetes Res Clin Pract. 2015 Jan;107(1):77-84. doi: 10.1016/j.diabres.2014.09.053. Epub 2014 Oct 7.
Weber MB, Ranjani H, Staimez LR, Anjana RM, Ali MK, Narayan KM, Mohan V. The Stepwise Approach to Diabetes Prevention: Results From the D-CLIP Randomized Controlled Trial. Diabetes Care. 2016 Oct;39(10):1760-7. doi: 10.2337/dc16-1241. Epub 2016 Aug 8.
Pyo E, Weber MB, Sivaram J, Staimez LR, Mohan V, Anjana RM, Haardorfer R, Ranjani H. Construct validity of the 12-item Short Form Health Survey (SF-12) version 2 and the impact of lifestyle modifications on the health-related quality of life among Indian adults with prediabetes: results from the D-CLIP trial. Qual Life Res. 2024 Jun;33(6):1593-1603. doi: 10.1007/s11136-024-03648-6. Epub 2024 Apr 12.
Ford CN, Weber MB, Staimez LR, Anjana RM, Lakshmi K, Mohan V, Narayan KMV, Harish R. Dietary changes in a diabetes prevention intervention among people with prediabetes: the Diabetes Community Lifestyle Improvement Program trial. Acta Diabetol. 2019 Feb;56(2):197-209. doi: 10.1007/s00592-018-1249-1. Epub 2018 Nov 13.
Cioffi CE, Ranjani H, Staimez LR, Anjana RM, Mohan V, Weber MB. Self-efficacy and diabetes prevention in overweight South Asians with pre-diabetes. BMJ Open Diabetes Res Care. 2018 Oct 15;6(1):e000561. doi: 10.1136/bmjdrc-2018-000561. eCollection 2018.
Other Identifiers
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LT07-115
Identifier Type: OTHER
Identifier Source: secondary_id
IRB00016503
Identifier Type: -
Identifier Source: org_study_id