Study of a Postpartum Diabetes Prevention Program for Hispanic Women

Study Results

Results pending

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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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

263 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-01-31

Study Completion Date

2018-06-30

Brief Summary

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The overall goal of this randomized controlled trial is to test the efficacy of a culturally and linguistically modified, individually-tailored lifestyle intervention to reduce risk factors for type 2 diabetes and cardiovascular disease among postpartum Hispanic women with a history of abnormal glucose tolerance during pregnancy.

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Detailed Description

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Specific aims are to evaluate the impact of the intervention on 1) postpartum weight loss, 2) biomarkers associated with insulin resistance (i.e., glucose, insulin, HbA1c, leptin, TNF-α, HOMA, AUCgluc, adiponectin), 3) other cardiovascular risk factors (i.e., blood lipids, blood pressure, CRP, fetuin-A, albumin-to-creatinine ratio), and 4) the adoption and maintenance of postpartum behaviors associated with weight loss and prevention of diabetes risk (i.e., physical activity, diet). Eligible Hispanic women will be recruited after routine GDM screening and randomly assigned to a Lifestyle Intervention (n=150) or a Comparison Health and Wellness (control) intervention (n=150). The intervention will be based on our efficacious exercise and dietary interventions for Hispanics (R01NR011295; WIC Common Pathways). Multimodal contacts (i.e., in-person, telephone counseling, and mailed print-based materials) will be used to deliver the intervention from randomization (29 wks gestation) to 12 months postpartum. Targets of the intervention are to achieve Institute of Medicine Guidelines for postpartum weight loss; American College of Obstetrician and Gynecologist guidelines for physical activity; and American Diabetes Association guidelines for diet. The intervention draws from Social Cognitive Theory and the Transtheoretical Model and addresses the specific social, cultural, economic, and physical environmental challenges faced by underserved Hispanic women. Measures of adherence will include the Pregnancy Physical Activity Questionnaire (PPAQ), accelerometers, and dietary recalls. The project is a Renewal Application of R01 DK064902, a study of lifestyle risk factors for GDM in Hispanic women. The proposed project builds upon the expertise of the investigative team in conducting randomized controlled trials of lifestyle interventions among Hispanic pregnant women (R01 DK074876; S3948 ASPH/CDC) and controlled trials of lifestyle interventions among low-income Hispanics with type 2 diabetes and pre-diabetes (R18 DK0658850; R18DK067549) and can readily be translated into clinical practice in underserved and minority populations.

Conditions

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Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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Lifestyle Intervention

Stage-matched physical activity and diet intervention materials and health education.

Group Type EXPERIMENTAL

Lifestyle Intervention

Intervention Type BEHAVIORAL

Stage-matched physical activity and diet intervention materials and health education.

Health and Wellness

HW served as the comparison group and received the same number of in-person sessions, telephone calls, and mailings at the same time points as LI. Content was limited to general information available to the public from the ACOG and the American Academy of Pediatrics and did not mention exercise behavior change.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Lifestyle Intervention

Stage-matched physical activity and diet intervention materials and health education.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Hispanic women with one or more glucose values during the diagnostic test meeting or exceeding the thresholds defined according to the American Diabetes Association

Exclusion Criteria

* history of type 1 or type 2 diabetes, heart disease, or chronic renal disease
* contraindications to postpartum participation in moderate physical activity or a low-fat/high-fiber diet (e.g., Crohn's disease, ulcerative colitis)
* inability to read English or Spanish at a 6th grade level
* \<18 or \>45 yrs of age
* women carrying multiples

Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes