NCT03607799

A Culturally-tailored Personalized Nutrition Intervention in South Asian Women at Risk of Gestational Diabetes

A Culturally-tailored Personalized Nutrition Intervention in South Asian Women at Risk of Gestational Diabetes Mellitus

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 140 (actual)
• Sponsor: McMaster University · Academic / Other
• Sex: Female
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

This trial will assess the impact of a culturally tailored, personalized nutrition intervention on glycemic response to an oral glucose load (as measured by the area-under-the curve glucose) in high-risk pregnancies of South Asian women. The intervention targets two at-risk individuals: mother and infant, "breaking the cycle" of maternal gestational dysglycemia, excess infant adiposity and insulin resistance, and CVD in both mother and baby. The findings of this study will be important in guiding future evidence-based recommendations and public health policies to manage gestational glycemia in pregnant women at risk of GDM.

Detailed description

The DESI-GDM study is a randomized study to assess the impact of a culturally tailored, personalized nutrition intervention on glycemic response to an oral glucose load in high-risk pregnancies of South Asian women. Eligible South Asian pregnant women will be randomized to intervention or control. South Asians (SA), people whose ancestors are from India, Pakistan, Bangladesh, or Sri Lanka, are the largest non-white ethnic group in Canada, and are at high risk of type 2 diabetes mellitus (T2DM) and early cardiovascular disease (CVD). SA women have at least double the risk of gestational diabetes (GDM) of white European women, and risk factors for future T2DM in the offspring including higher birthweight, more adipose tissue, and reduced insulin sensitivity, are more common in SA infants of mothers with GDM than infants born to mothers without GDM. Building on our findings from the South Asian prospective birth cohort (START), which identified diet as a key modifiable risk factor for GDM, we have developed a dietary intervention. The women we spoke with expressed a desire to learn more about healthy eating to prevent diabetes during pregnancy and were keen to use mobile health technology. The objectives of this trial among pregnant women of South Asian descent are to: 1. Evaluate the effectiveness of a culturally-tailored personalized nutrition intervention delivered by a trained health coach to improve blood sugar levels in South Asian women to a greater extant than usual dietary advice. 2. Evaluate the effectiveness of a culturally-tailored personalized nutrition intervention delivered by a trained health coach to pregnant South Asian women in the reduction of the incidence of gestational diabetes mellitus to a greater extent than usual dietary advice. The findings of this study will be important in guiding future evidence-based recommendations and public health policies to manage gestational glycemia in pregnant women at risk of GDM.

Conditions

• Diabetes, Gestational

Interventions

Type	Name	Description
BEHAVIORAL	Dietary Intervention	Individualized diet advice will be developed for each participant by a dietitian familiar with South Asian foods.
BEHAVIORAL	Control	Control group participants will be provided with PDFs, website links to encourage healthy eating, physical activity, and other lifestyle factors during pregnancy. They will also receive weekly text messages aimed at increasing walking.

Timeline

• Start date: 2020-11-26
• Primary completion: 2025-09-30
• Completion: 2025-12-31
• First posted: 2018-07-31
• Last updated: 2025-05-06

Locations

1 site across 1 country: Canada