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CompletedNCT01344278Updated Apr 25, 2016

Diabetes Prevention Strategies in Women With Gestational Diabetes Mellitus (GDM)

An interventional study of Lifestyle Counseling in Gestational Diabetes and Obesity, sponsored by Kaiser Permanente. Completed at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-04-25.

Sponsored by Kaiser Permanente · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
2,480
Allocation
Randomized
Ages
18 Years and older
Sex
Female
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Study summary

The main goal of this study is to examine the comparative effectiveness of diabetes prevention strategies in women with Gestational Diabetes Mellitus (GDM) on the control of the following conditions: obesity, hyperglycemia, hypertension and depression. This randomized lifestyle intervention study will be conducted at Kaiser Permanente Northern California. Women in the intervention will receive a letter on gestational weight gain during pregnancy and in the postpartum period, a curriculum of individualized lifestyle counseling via telephone, augmented with e-mail and an interactive Web site. Patients randomized to the usual care arm will receive the standard-care telephone calls from the Perinatal Center during pregnancy and the Center's printed educational materials postpartum. Outcomes will be assessed through the electronic medical record and patient surveys conducted during pregnancy and at 6-weeks, 6- months and 1-year postpartum.

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Conditions studied

  • Gestational Diabetes
  • Obesity
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In context

Diabetes, Gestational

842 studies on the registry are indexed under Diabetes, Gestational; 198 are open to participants now.

This study's enrollment of 2,480 is above the median of 110 across 550 interventional studies indexed under Diabetes, Gestational.

Browse Diabetes, Gestational studies →

Lead sponsor

Kaiser Permanente is the lead sponsor of 385 studies on the registry; 41 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 3 (50%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

All women, 18 years of age or older, receiving medical care at Kaiser Permanente Northern California with a pregnancy complicated by gestational diabetes between March 2011 and May 2012 that have a telephone or cellular phone will be eligible.

Exclusion criteria

Exclusion Criteria:

Women with overt diabetes not recognized prior to pregnancy (any women with fasting plasma glucose > 126 mg/dl, or any plasma glucose level over 200 mg/dl on more than 1 occasion during pregnancy) will be excluded from the analyses but will be eligible for the lifestyle intervention.

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Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
2,480 participants (actual)

Study arms

  • Experimental
    Lifestyle Counseling

    Behavioral: Lifestyle Counseling

  • No intervention
    Control

Interventions

  • BehavioralLifestyle Counseling

    A lifestyle curriculum of individualized telephone counseling calls, augmented with e-mails and an interactive study Web site.

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What researchers measure

Primary outcomes

  1. Primary outcome: meeting the postpartum weight goal

    Will be the proportion of women who reach their postpartum weight goal (based on their pre-pregnancy weight) and the total amount of weight change (in kilograms). Weight goals: a) reaching pre-pregnancy weight if women had a normal pre-pregnancy weight; or b) achieving a 5% reduction from pre-pregnancy weight if overweight or obese prior to pregnancy.

    Time frame: through 12 months postpartum

Secondary outcomes

  1. Blood pressure

    Time frame: through 12 months postpartum

  2. Depression

    Time frame: through 12 months postpartum

  3. Glycemia

    Time frame: through 12 months postpartum

  4. percent of calories from fat

    Time frame: through 12 months postpartum

  5. physical activity

    Time frame: through 12 months postpartum

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Study locations

1 site
  • Division of Research Northern California
    Oakland, California 94612, United States
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References and documents

Publications

  • Gadgil MD, Ehrlich SF, Zhu Y, Brown SD, Hedderson MM, Crites Y, Ferrara A. Dietary Quality and Glycemic Control Among Women with Gestational Diabetes Mellitus. J Womens Health (Larchmt). 2019 Feb;28(2):178-184. doi: 10.1089/jwh.2017.6788. Epub 2018 Oct 30. PubMed 30376391 ↗
  • Hedderson MM, Brown SD, Ehrlich SF, Tsai AL, Zhu Y, Quesenberry CP, Crites Y, Ferrara A. A Tailored Letter Based on Electronic Health Record Data Improves Gestational Weight Gain Among Women With Gestational Diabetes Mellitus: The Gestational Diabetes' Effects on Moms (GEM) Cluster-Randomized Controlled Trial. Diabetes Care. 2018 Jul;41(7):1370-1377. doi: 10.2337/dc17-1133. Epub 2018 Apr 18. PubMed 29669736 ↗
  • Ferrara A, Hedderson MM, Brown SD, Albright CL, Ehrlich SF, Tsai AL, Caan BJ, Sternfeld B, Gordon NP, Schmittdiel JA, Gunderson EP, Mevi AA, Herman WH, Ching J, Crites Y, Quesenberry CP Jr. The Comparative Effectiveness of Diabetes Prevention Strategies to Reduce Postpartum Weight Retention in Women With Gestational Diabetes Mellitus: The Gestational Diabetes' Effects on Moms (GEM) Cluster Randomized Controlled Trial. Diabetes Care. 2016 Jan;39(1):65-74. doi: 10.2337/dc15-1254. Epub 2015 Dec 9. PubMed 26657945 ↗
  • Ferrara A, Hedderson MM, Albright CL, Brown SD, Ehrlich SF, Caan BJ, Sternfeld B, Gordon NP, Schmittdiel JA, Gunderson EP, Mevi AA, Tsai AL, Ching J, Crites Y, Quesenberry CP Jr. A pragmatic cluster randomized clinical trial of diabetes prevention strategies for women with gestational diabetes: design and rationale of the Gestational Diabetes' Effects on Moms (GEM) study. BMC Pregnancy Childbirth. 2014 Jan 15;14:21. doi: 10.1186/1471-2393-14-21. PubMed 24423410 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 25, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01344278
Lead sponsor
Kaiser Permanente
Collaborators
Agency for Healthcare Research and Quality (AHRQ)
Responsible party
Sponsor
First posted
Apr 29, 2011
Start date
Apr 2011
Primary completion
Dec 2013
Completion
Sep 2015
Last update
Apr 25, 2016

Study contacts

Assiamira Ferrara, MD, PhD
principal investigator · Kaiser Permanente

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2016. You cannot join it, but the record below documents what was studied.

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