Tianjin Gestational Diabetes Prevention Program (TGDPP) (GDM)

Study Description

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Brief Summary:

A total of 1,180 women diagnosed with Gestational Diabetes Mellitus (GDM) from 2005 to 2009 have and continues to be randomly assigned to either the intervention group or the control group. GDM women in the intervention group will have five consulting sessions with a dietician during the first year and two sessions during the second year. The intervention group are given detailed advice about how to achieve the six goals of the intervention. The primary aim will test whether lifestyle intervention can reduce incident Type 2 Diabetes (T2D) in women with prior GDM. The second aim will test gene-intervention interactions through fine-mapping established genes for glucose, IR, lipids, obesity and T2D in relation to metabolic traits for T2D in GDM women.

Condition or disease	Intervention/treatment	Phase
Gestational Diabetes Mellitus (GDM)	Behavioral: Lifestyle intervention	Not Applicable

Study Design

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Study Type :	Interventional (Clinical Trial)
Estimated Enrollment :	1180 participants
Allocation:	Randomized
Intervention Model:	Parallel Assignment
Masking:	Double (Participant, Investigator)
Primary Purpose:	Prevention
Official Title:	Lifestyle and Genetic Factors on Diabetes Risk in Women With GDM After Delivery: Tianjin Gestational Diabetes Prevention Program (TGDPP)
Study Start Date :	August 2009
Actual Primary Completion Date :	July 2011

Arms and Interventions

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Arm	Intervention/treatment
Lifestyle counseling; The women in the intervention group will be given detailed advice about how to achieve the six evidence-based goals of the intervention,7-9 including: 1) reduction in 5-10% of initial body weight in women with body mass index (BMI) ≥24 kg/m2 through the reduction of at least 10% of total calories of their normal meals, 2) total fat intake <30% of energy consumed, 3) saturated fat intake <10% of energy consumed, 4) carbohydrate intake 55-65% of energy consumed, 5) fiber intake 20-30g per day, and 6) moderate or vigorous exercise for at least 30 min daily, seven days each week.	Behavioral: Lifestyle intervention; The women in the intervention group will be given detailed advice about how to achieve the six evidence-based goals of the intervention,7-9 including: 1) reduction in 5-10% of initial body weight in women with body mass index (BMI) ≥24 kg/m2 through the reduction of at least 10% of total calories of their normal meals, 2) total fat intake <30% of energy consumed, 3) saturated fat intake <10% of energy consumed, 4) carbohydrate intake 55-65% of energy consumed, 5) fiber intake 20-30g per day, and 6) moderate or vigorous exercise for at least 30 min daily, seven days each week.
No Intervention: Control; the subjects in the control group had been educated regarding general principles of healthy lifestyle that benefits T2D and obesity prevention, and also informed about the current evidence showing that the lifestyle intervention is effective in women at high risk for T2D during the "run-in" period.

Outcome Measures

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Primary Outcome Measures :

1. incident type 2 diabetes [ Time Frame: during 2-year follow-up ]

Secondary Outcome Measures :

1. approximately 40 SNPs [ Time Frame: during 2-year follow-up ]

Eligibility Criteria

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Ages Eligible for Study:	20 Years to 49 Years (Adult)
Sexes Eligible for Study:	Female
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

1. Age 20-49 years
2. Women diagnosed with GDM between 2005 and 2009.

Exclusion Criteria:

1. Age < 20 and ≥ 50 years
2. Newly diagnosed diabetes in the screening visit
3. The presence of any chronic diseases that could seriously reduce their life expectancy or their ability to participate in the trial
4. Unable or unwilling to give informed consent or communicate with study staff
5. Currently pregnant, or planning to become pregnant in the next four years

Contacts and Locations

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Contacts

Contact: Huikun Liu, PhD	86 2258297935	huikun_liu@sina.com

Locations

China
Tianjin Women's and Children's Health Center	Recruiting
Tianjin, China, 30070
Contact: Huikun Liu, PhD huikun_liu@sina.com
Principal Investigator: Huiguang Tian, PhD
Principal Investigator: Gang Hu, PhD

Sponsors and Collaborators

Tianjin Women and Children's Health Center

More Information

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Responsible Party:	HunKun Liu, Project co-investigator, Tianjin Women and Children's Health Center
ClinicalTrials.gov Identifier:	NCT01554358 History of Changes
Other Study ID Numbers:	TWCHC09-01
First Posted:	March 14, 2012
Last Update Posted:	November 4, 2015
Last Verified:	November 2015

Keywords provided by HunKun Liu, Tianjin Women and Children's Health Center:

Gestational diabetes mellitus; Lifestyle intervention

Additional relevant MeSH terms:

Diabetes Mellitus; Diabetes, Gestational; Glucose Metabolism Disorders	Metabolic Diseases; Endocrine System Diseases; Pregnancy Complications