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ObesityNCT01770028

Ripple Effect of Lifestyle Intervention During Pregnancy on Partners' Weight

An observational study of Obesity, run by California Polytechnic State University-San Luis Obispo at 3 sites in United States.

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

The primary aim of the proposed study is to determine whether lifestyle interventions to prevent excessive gestational weight gain in overweight/obese pregnant women have positive "ripple" effects on untreated partners in the home. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Obesity
How many people
122 participants
Where
3 sitesUnited States
Study dates
Jan 2013to Jul 2017
How long will I take part?
19 Months
Phase
Observational
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: This study uses a randomized repeated measures design. Partners will be categorized based on randomized status of their pregnant partner (in the parent grants; NIH 1U01HL114377-01, PI Phelan; NIH 3U01DK094418-01S1, PIs Redman and Martin). Partner participation in the ancillary study will not be mandatory for participation in the parent grant. NOTE: There is no intervention in partners.

Who may be able to join

  • Man or woman who self-identifies as sharing an intimate relationship and cohabitating in the home with the pregnant women (enrolled in the parent grant) for the previous 3 months or recently been married and living in the home
  • ≥18 years
  • willing to provide informed consent/assent

Who cannot join

  • None

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Columbia University

    New York, New York, 10027

  • Miriam Hospital

    Providence, Rhode Island, 02906

  • California Polytechnic State University

    San Luis Obispo, California, 93407

Other trials in United States

About this study

The primary aim of the proposed study is to determine whether lifestyle interventions to prevent excessive gestational weight gain in overweight/obese pregnant women have positive "ripple" effects on untreated partners in the home. We hypothesize that partners of pregnant women randomized to the lifestyle intervention, relative to those of standard care, will have greater weight losses through 12-months. Secondary aims examine partner improvements in weight control behaviors, the home environment, and psychosocial parameters.

Read the detailed description

Lifestyle interventions targeting overweight individuals can produce positive "ripple" effects on untreated overweight partners in the home. Interestingly, ripple effects on partners' weight appear most pronounced when the interventions target women. Women, and mothers in particular, remain the primary "nutritional gatekeepers" of the home. Despite widespread recognition that motherhood is a powerful motivator for behavior changes, no study to date has examined the "ripple" effects of prenatal lifestyle interventions that target mothers' gestational weight gain. The primary aim of the proposed study is to determine whether lifestyle interventions to prevent excessive gestational weight gain in overweight/obese pregnant women have positive "ripple" effects on untreated partners in the home. The proposed study is ancillary to two randomized phase III clinical trials in the LIFE-moms consortium (1U01HL114377-01, PI Phelan; 3U01DK094463-03S1, PIs Pi-Sunyer and Gallagher) that are examining the efficacy of multi-component lifestyle interventions to prevent excessive gestational weight gain in a total of 650 overweight/obese women. In this ancillary study, partners' weight, home environment, and psychosocial behaviors will be assessed when their pregnant partners are ~13 weeks gestation (study entry), 35 weeks gestation and at 6 and 12 months postpartum. We hypothesize that partners of pregnant women randomized to the lifestyle intervention, relative to those of standard care, will have greater weight losses through 12-months. Secondary aims examine partner improvements in weight control behaviors, the home environment, and psychosocial parameters. This project is highly innovative, as it capitalizes on existing funded research and is the first study to examine ripple effects of multicomponent prenatal interventions. The project also has high impact, as pregnancy is a powerful motivator for behavior and environmental changes in the home; and, if positive ripple effects occur, the field of obesity treatment and prevention could move beyond focus on individual level to the often unrecognized interpersonal effects of lifestyle interventions. PUBLIC HEALTH RELEVANCE: This research project will examine whether interventions to prevent excessive gestational weight gain have positive "ripple" effects on the health of untreated partners in the home.

Conditions
Obesity
Keywords
Obesity, Pregnancy, Spouse, Weight loss, Behavioral
Medical subject headings
Obesity, Weight Loss, Behavior

What participants receive

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

Study groups in NCT01770028
Study groupRoleWhat they receive
Intervention partnersPartners of pregnant women randomized to lifestyle intervention. Note: There is no intervention in partners of pregnant women.
Standard care partnersPartners of pregnant women randomized to Standard Care. Note: There is no intervention in partners of pregnant women.

What is being measured

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

  1. Change in weight of partners of pregnant women

    Change in weight of partners of pregnant women randomized to the lifestyle intervention, relative to partners of pregnant women of standard care, from 13 weeks gestation to 35 weeks gestation and 6 and 12-months postpartum.

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

Secondary outcomes (8)
  1. Percent of partners with weight change loss >5%, 10%, and 15%

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  2. Change in calorie and fat intake

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  3. Change in physical activity levels

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  4. Change in sleep patterns and sleep hours

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  5. Change in self-monitoring

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  6. Change in food, exercise and sedentary cues in the home environment

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  7. Change in mood

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

  8. Change in dietary restraint

    Measured: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

Timeline

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

  1. First posted17 Jan 2013 (estimated)
  2. Study startJan 2013
  3. Primary completionJul 2017
  4. Study completionJul 2017

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
122 participants (actual)
Target duration
19 Months
IDs, dates and publications
ClinicalTrials.gov ID
NCT01770028
Sponsor's protocol ID
1R01HL118208
Status last verified
Feb 2018
First submitted
8 Jan 2013
Last updated
12 Feb 2018
Results posted
No
Data monitoring committee
Yes

Publications

  • Hagobian TA, Phelan S, Schaffner A, Brannen A, McHugh A, Ashby-Thompson M, Gorin AA, Pi-Sunyer X, Gallagher D, Wing R. Ripple Effect of Lifestyle Interventions During Pregnancy on Untreated Partners' Weight. Obesity (Silver Spring). 2019 May;27(5):733-739. doi: 10.1002/oby.22447. Epub 2019 Apr 8.

    PubMed 30957985

Questions about this trial

What is this clinical trial studying?

An observational study of Obesity, run by California Polytechnic State University-San Luis Obispo at 3 sites in United States.

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 3 inclusion and 1 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 12 Feb 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. 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?

Change in weight of partners of pregnant women (time frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01770028, which also lists 1 linked publication.

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 12 Feb 2018.

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