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Gestational Weight GainNCT06370533

Healthy Gestational Weight Gain Programme

A study testing behavioral interventions in people with Gestational Weight Gain and Overweight and Obesity, run by Peking University at 2 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aims to evaluate the efficacy of a multi-component lifestyle interventions during pregnancy on promoting appropriate gestational weight gain, preventing GDM, and improving pregnancy, delivery, and neonatal outcomes among overweight or obese pregnant women. Read more about this study

Who is it for?
Ages 18 to 40 years, women only
What is being tested?
behavioral interventions
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
2 sitesChina
Study dates
19 Apr 2024to 31 Mar 2026
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • At 8-14 weeks of gestation
  • Overweight or obese (pre-pregnancy 40 kg/m2≥BMI≥24 kg/m2) based on BMI recommendations of the Group of China Obesity Task Force of the Chinese Ministry of Health accounting for interracial differences (overweight BMI 24-28 kg/m2 and obese BMI≥28kg/m2)
  • 18-40 years of age
  • Singleton pregnant
  • Skilled at using smartphones and WeChat during pregnancy
  • Attend regular antenatal care and plan delivery at W.F. Maternal and Child Health Hospital or Tongzhou Maternal and Child Health-care Institution of Beijing
  • No contraindications to physical activity according to Physical Activity Readiness Questionnaire (PAR-Q)
  • Willing to be randomized and cooperate with research and regular follow-up visits and sign informed consent.

Who cannot join

  • Pre-pregnancy hypertension, severe cardiovascular and cerebrovascular diseases, respiratory disease, hepatic and renal disease, malignant tumors, systemic lupus erythematosus, thyroid disease, severe anemia, and other chronic consumptive diseases.
  • Cervical insufficiency (historical painless cervical dilation leading to recurrent second-trimester births in the absence of other causes; dilated cervix on manual or speculum examination, etc.), multiple pregnancy, or continuous vaginal bleeding, etc.
  • Diabetes before pregnancy
  • Special dietary needs (e.g. , vegetarianism)
  • Severe psychiatric disorders (serious mental health disorders including depression, anxiety, bipolar disorders, etc.)
  • Cognitive impairment, visual impairment or hearing impairment
  • History of bariatric surgery or surgical history involving important organs within 3 months
  • Participated in other clinical trials within 6 months

Trial locations and contacts

2 sites in 1 country.

China2 sites
  • Tongzhou Maternal and Child Health-care Institution

    Beijing, Beijing Municipality

  • W.F. Maternal and Child Health Hospital;

    Weifang, Shandong

Other trials in China

About this study

Official title: The Effects of Mobile Health Based Lifestyle Intervention on Gestational Weight Gain in Pregnant Women With Overweight and Obesity: A Randomized Controlled Trial

This study aims to evaluate the efficacy of a multi-component lifestyle interventions during pregnancy on promoting appropriate gestational weight gain, preventing GDM, and improving pregnancy, delivery, and neonatal outcomes among overweight or obese pregnant women. The intervention strategies are developed based on the transtheoretical model and mobile health (via WeChat Public Account in smartphone), and will be conducted online and offline. This study will recruit and follow-up 200 overweight or obese singleton pregnant women (pre-pregnancy 24kg/m2≤BMI≤40 kg/m2) during the first trimester of pregnancy from Weifang Maternal and Child Health Hospital, Shandong Province, China, and Tongzhou Maternal and Child Health-care Institution, Beijing, China, with 100 pregnancy women in each institution. The 200 overweight or obese pregnant women will be randomly allocated at a 1:1 ratio to either the intervention or control group, stratified by the categorical variables of age, BMI and parity. Participants in the control group will be provided usual prenatal care. The lifestyle intervention will last for approximately 6 months (from 10-14 weeks to 32-36 weeks of gestation). Follow-up timepoints included 8-14 weeks of gestation, 24-28 weeks of gestation, 32-36 weeks of gestation. The interventions are composed of health education related to gestational weight gain and healthy lifestyles, diet modification, active physical activity, regular individual in-person and telephone sessions, diet behavior monitoring, physical activity monitoring, and weight monitoring with Huawei Wristband and WeChat Public Account. The hypothesis is that lifestyle interventions based on the transtheoretical model and mobile health will result in more appropriate gestational weight gain and lower risk of adverse pregnancy outcomes compared with usual care.

Read the detailed description

Overweight and obesity is a major public health problem among women in reproductive age. Excessive gestational weight gain (EGWG) among this group is becoming a worldwide epidemic over recent decades. EGWG is associated with adverse outcomes including increased risk of developing gestational diabetes mellitus (GDM), cesarean section, hypertensive disorders of pregnancy (HDP), elevated infant birth weight and adiposity, and increased risk of metabolic syndrome and childhood obesity in offspring. Therefore, interventions are needed to help overweight and obese pregnant women to control GWG.

Lifestyle intervention has been proved effective on weight management during pregnancy. However, the effects of interventions on controlling overweight and obese women's GWG are inconsistent. Traditional face-to-face counseling are less cost effective. Effective intervention models based on Mobile health that can be scaled up are scarce. Thus, this randomized controlled trial aims to identify: firstly, whether the mobile health lifestyle interventions will be effective on improving gestational weight gain and preventing GDM among overweight or obese pregnant women; secondly, whether the intervention will be beneficial for improving pregnancy outcomes, delivery outcomes, neonatal outcomes, metabolic indicators, body composition indicators, etc. among overweight or obese pregnant women.

The interventions are composed of health education (online and offline health education on recommended gestational weight gain, prenatal dietary guidance and physical activity recommendation), diet behavior modification (8 core dietary goal setting and monitoring weekly), active physical activity (150 min per week of moderate-to vigorous-intensity physical activity including aerobic exercise (brisk walking) and resistance exercise; goal of 6000 steps/day), regular face to face or telephone sessions, lifestyle (diet and physical activity behavior) and weight monitoring via Huawei Wristband or WeChat Public Account. Tailoring of the intervention will be guided by the transtheoretical model. A total of 200 overweight or obese singleton pregnant women of 8-14 weeks of gestation will be recruited and they will be randomly allocated at a 1:1 ratio to either the intervention or control group, stratified by the categorical variables of age, BMI and parity. Participants in the control group will be provided usual prenatal care.

Women in both study arms will attend three research appointments at 8-14 weeks (baseline),24-28 weeks (midterm) and 32-36 weeks (terminal) of gestation for data collection via questionnaires, physical measurements, and clinical laboratory examination. Information on demography, socioeconomic status, medical and family history, obstetric history, current pregnancy information, smoking, consumption of alcohol, attitude and knowledge about GWG, diet and exercise habits, sleep situation, quality of life, mental health (depression, anxiety), social support, self-efficacy, etc. will be collected with questionnaires and interviews by research stuff. Physical measurements including weight, height, blood pressure, and body composition using bioelectrical impedance (BIA) will be obtained using standardized methods. Laboratory tests performed in conjunction with antenatal visits include a 75 g 2-hour oral glucose tolerance test (OGTT). Data on mode of delivery, gestational age at birth, birth weight, Apgar scores, perinatal complications, etc. will be obtained from patient records. In addition, blood and urine samples will be drawn at three appointments and a sample of cord blood will be collected at birth. Maternal postpartum weight (42 days,6 months,1 year after delivery) will be obtained through routine physical examination or telephone follow-up. Offspring physical growth indicators, such as height, weight, head circumference, etc., will be collected from routine physical examination in 42 days, 6 months and 12 months of age.

Being tested
behavioral interventions
Medical subject headings
Gestational Weight Gain, Overweight, Obesity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • behavioral interventionsBehavioural

    The investigators set diet, physical activity, and weight goals for each participant. During the lifestyle intervention period, the participants need to complete weekly self-monitoring of weight, weekly recording of diet behavioral goals, timely exercise logging, online health education course learning by using the WeChat public account. They will receive corresponding timely reminder and tailored feedback in the form of graphical illustration and text according to diet, physical activity, and weight data collected by WeChat public account and Huawei Wristband. They will receive individual face to face or telephone sessions every 2 weeks to complete health education, goal review, motivational interview as well as collecting adverse events.

Study groups in NCT06370533
Study groupRoleWhat they receive
lifestyle interventionExperimentalHealth education: Individual face to face or telephone sessions and online health education material. Diet behavior: The eight eating behavioral goals will be assigned to each participant with two for every 4-week cycle. Physical activity: Women will be advised to gradually attaining the goal of 150 minutes of moderate- to vigorous-intensity physical activity per week and walk at least 6000 steps per day. Weight monitoring: Self-monitoring of weight gain (regular self-weighing) and weight logging at least once a week was recommended.
Receives: Behavioral: behavioral interventions
usual-care controlNo interventionProvision of usual prenatal care

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Total gestational weight gain

    Weight at gestational week 32-36 minus pre-pregnancy weight (kilograms)

    Measured: From pre-pregnancy to gestational week 32-36

  2. Gestational weight gain before OGTT screening

    Gestational weight gain before OGTT screening at 24-28 weeks (kilograms)

    Measured: From pre-pregnancy to midterm (24-28 weeks)

Secondary outcomes (8)
  1. Weekly rate of gestational weight gain between study clinical assessments

    Gestational weight gain between pre-pregnancy/baseline (8-14 weeks) and midterm (24-28 weeks)/terminal (32-36 weeks) divided by the number of weeks (kilograms per week)

    Measured: Gestational weight gain from pre-pregnancy/baseline (8-14 weeks) to midterm (24-28 weeks)/terminal (32-36 weeks)

  2. Proportion of women who exceed the IOM guidelines' weekly rate of gestational weight gain between clinical assessments

    Exceeding the weekly rate of gestational weight gain according to Institute of Medicine guidelines was defined as being above the sum of the upper limit for the first trimester (2.0 kg)+upper limit for the weekly rate (0.33 kg for overweight, 0.27 kg for obesity) ×number of weeks in the second and/or third trimesters (ie, up until the last measured pregnancy weight).

    Measured: From pre-pregnancy/baseline (8-14 weeks) to midterm (24-28 weeks)/terminal (32-36 weeks)

  3. Rate of Gestational Diabetes Mellitus diagnosed according to International Association of Diabetes and Pregnancy Study Group (IADPSG) criteria

    Fasting plasma glucose (FPG) ≥ 5.1 mmol/L, and/or 1-h blood glucose ≥ 10.0 mmol/L, and/or 2-h blood glucose ≥ 8.5 mmol/L

    Measured: OGTT screening at 24-28 gestational weeks

  4. Rate of Preeclampsia/Gestational hypertension

    Preeclampsia was defined according to the criteria of the American College of Obstetricians and Gynecologists (ACOG) i.e. systolic blood pressure of ≥ 140 mmHg or diastolic blood pressure of ≥ 90 mmHg occurring after 20 weeks of gestation in a previously normotensive woman combined with new-onset proteinuria of ≥0.3 g/24 h. Gestational hypertension was defined similarly but without the presence of proteinuria.

    Measured: From 20 weeks of gestation to delivery

  5. Rate of Cesarean Section

    Cesarean Section

    Measured: At delivery

  6. Absolute/Mean Infant birth weight

    Birth weight at delivery(kilograms)

    Measured: At delivery

  7. Rate of Macrosomia

    Infant birth weight of ≥ 4000g

    Measured: At delivery

  8. Absolute/Mean Apgar scores at 1 min or 5 min

    Apgar scores at 1 min or 5 min evaluates the baby's heart rate, respiratory effort, muscle tone, reflex irritability, and color. Each category is scored from 0 to 2, and the total score ranges from 0 to 10. A higher Apgar score indicates that the newborn is in good health.

    Measured: At delivery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Apr 2024
  2. Study start19 Apr 2024
  3. Primary completion31 Mar 2025
  4. Study completion31 Mar 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06370533
Sponsor's protocol ID
HGWG-pro
Status last verified
Mar 2026
First submitted
31 Mar 2024
Last updated
13 Apr 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing behavioral interventions in people with Gestational Weight Gain and Overweight and Obesity, run by Peking University at 2 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Total gestational weight gain (time frame: From pre-pregnancy to gestational week 32-36). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Apr 2026.

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