CHIME: Comparing Health Interventions for Maternal Equity

This study, called CHIME, is comparing three different ways to help pregnant women achieve a healthy weight during and after pregnancy. It's looking at two active approaches: "Self-Management" (which offers support for things like groceries, physical activity, and transportation) and "Community-Based" (which connects you with community health workers for social support and resources). The study wants to find out if either of these approaches is better than usual care at helping women keep off pregnancy weight 12 months after giving birth. You may be able to join if you are a woman aged 18 or older, less than 20 weeks pregnant with a single baby, plan to continue care at the study site, and meet certain characteristics like self-identifying as Black/African American. The study aims to enroll 795 participants, but its current status is unclear.

Study design: This is an interventional study comparing three different approaches to maternal health. It plans to enroll 795 participants.
What's involved: Not specified in the trial record.
Compensation: Not stated in the trial record.
Follow-up: Participants will be followed for maternal postpartum weight retention at 12 months postpartum.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

CHIME: Comparing Health Interventions for Maternal Equity

Recruiting

NAAges 18+InterventionalTreatment

Stanford University

~795 participants

Updated 2026-03-05 on ClinicalTrials.gov

What's tested:Self-ManagementCommunity-Based

At a glance

Recruiting sites

3 of 4 listed sites are recruiting right now

RecruitingSuspended, closed, or not yet open

What they're measuring

Maternal postpartum weight retention at 12-months postpartum.

Measured over From enrollment to the end of the intervention at 12 months postpartum.

Conditions

Obesity and Overweight

Nutrition

Chronic Disease

Diabetes

Pregnancy

Where it's being run

4 sites across 2 states

New York3

California1

Who to contact

Jennifer Woo Baidal Associate Professor, MD, MPH

[email protected]

650-721-2250

Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Maternal age 18 years or older

Maternal gestational age ≤ 20 weeks with viable singleton pregnancy documented on first trimester ultrasound with an intention to continue pregnancy to term

Plans to continue receiving antenatal care at the recruitment site/network

Maternal characteristics include at least one of the following:

Self identifies as Black/African American

Self identifies as Hispanic/Latino/a/e/x

Insured by Medicaid

Maternal ability to speak English or Spanish

Completion of baseline data collection (maternal survey data, weight, and height measurement prior to randomization)

Exclusion

Age \< 18 years at baseline because of unique developmental differences of adolescents and regulations regarding age of consent

Underweight (BMI \<18 kg/m2) at pre-pregnancy period

Underlying disease/treatment that might impact weight status (e.g., significant gastrointestinal conditions, major psychiatric disorders, and others at the discretion of the study clinician)

Unwillingness or inability to complete study visits or intervention components

Unwillingness or inability to commit to intervention components for self or infant, including plans to move more than 100-mile radius from recruitment site

Multiple gestations

What this trial measures

Maternal postpartum weight retention at 12-months postpartum.From enrollment to the end of the intervention at 12 months postpartum.
The primary outcome will be calculated as the difference between baseline weight and 12-month postpartum weight. Baseline weight will be defined as the first clinical measure of maternal weight prior to 12 weeks gestation.

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