Preventing Disordered Eating and Body Dissatisfaction Among High-risk Pregnant Individuals
Targeting Health and Resilience for Individuals With a Vulnerable Eating History (THRIVE)
1 other identifier
interventional
60
1 country
1
Brief Summary
The investigators aim to conduct a feasibility randomized controlled trial (RCT) of an eating disorder prevention program (The Body Project, adapted for pregnancy) versus a health education control among pregnant individuals with histories of an ED. The investigators will test the feasibility, implementation outcomes, and its preliminary effectiveness in reducing the risk of elevated disordered eating and body dissatisfaction during pregnancy and postpartum.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jun 2024
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 6, 2024
CompletedFirst Submitted
Initial submission to the registry
October 18, 2024
CompletedFirst Posted
Study publicly available on registry
October 26, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2026
CompletedNovember 17, 2025
November 1, 2025
1.8 years
October 18, 2024
November 13, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (9)
Feasibility of recruitment
The investigators will consider the program feasible if the investigators meet recruitment targets (N=60).
0 weeks
Session attendance
The investigators will assess what percentage of enrolled participants complete 4 or more sessions. The benchmark will be \> 50% of participants will complete 4 or more sessions.
6 weeks
Drop Out
The investigators will assess what percentage of enrolled participants complete post-test assessments. The benchmark will be \> 50% of participants will complete the post-test surveys and interviews.
6 weeks
Client satisfaction questionnaire (CSQ-8)
Assesses participants' satisfaction with the intervention. Scores range from 8 to 32 with higher scores indicating greater satisfaction. The benchmark will be that at least 70% of participants will have scores over and above the midpoint in both the PBP and PHE groups.
6 weeks
Credibility and Expectancy Questionnaire (CEQ)
Assesses participants' perceptions that the treatment will work after learning about the study. The first three items measure credibility, and the latter three items measure expectancy. It is scored on a scale of 3-27 with higher scores indicating greater confidence in the treatment. The benchmark will be that at least 70% of participants will have scores over and above the midpoint in both the PBP and PHE groups.
0 weeks
Feasibility of data collection
E.g.: The investigators will assess the feasibility of quantitative measures with the benchmark of no questionnaires fully missing in \>25% of participants
Through the study completion, approximately 1 year depend on gestational at enrollment
Adapted Acceptability of Intervention Measure (AIM), Intervention Appropriateness Measure (IAM), & Feasibility of Intervention Measure
Assesses acceptability, appropriateness, and feasibility of the intervention and Facilitators and Barriers to Participating. Acceptability, appropriateness, and feasibility subscales each consist of 4 items ranging from 1-5. Scores can be calculated by averaging the 4 items and range from 1-5. Higher scores indicate greater acceptability, appropriateness, and feasibility. The benchmark will be that at least 70% of participants will have scores over and above the midpoint for these subscales in both the PBP and PHE groups. Facilitators and Barriers to participating are open-ended questions and will be assessed with qualitative analyses.
6 weeks
Facilitator Adherence to Sessions
The investigators will assess the percentage of sessions with ≥75% adherence. The benchmark will be ≥70% of sessions will have ≥75% adherence (checklist and audio recordings); 20% of sessions rated.
Through the study completion, approximately 1 year depend on gestational at enrollment
Participant Adherence to Homework
The investigators will assess the percentage of participants that complete (i.e., upload/submit) ≥75% of the homework assignments. The benchmark will be ≥70% of participants will complete ≥75% of the homework assignments.
6 weeks
Secondary Outcomes (14)
Thin Ideal Internalization Scale
0 weeks, 6 weeks, 3 months pp, 6 months pp
Dutch Restrained Eating Scale
0 weeks, 6 weeks, 3 months pp, 6 months pp
The Satisfaction and Dissatisfaction with Body Parts Scale
0 weeks, 6 weeks, 3 months pp, 6 months pp
Body Image in Pregnancy Scale (BIPS)
0 weeks, 6 weeks, 3 months pp, 6 months pp
Eating Disorder Examination Questionnaire (EDEQ)
0 weeks, 6 weeks, 3 months pp, 6 months pp
- +9 more secondary outcomes
Study Arms (2)
Pregnant Body Project (PBP)
EXPERIMENTALThe Body Project is typically delivered as four 1-hour weekly sessions consisting of written, verbal, and behavioral exercises. The sessions aim to induce cognitive dissonance by encouraging participants to challenge the thin-ideal, a theoretically and empirically supported component of ED prevention. This adapted version of the Body Project (the Pregnant Body Project; PBP) consists of 6 1-hour, weekly group sessions delivered via Zoom. Since the target population consists of individuals with histories of an ED or disordered eating behaviors, PBP also includes elements from a treatment intervention (i.e., the Body Project Treatment 8.0 manual). PBP was adapted iteratively with a needs assessment, expert stakeholder input, and participant feedback following a mock trial with individuals with lived experience (i.e., individuals with histories of an ED who have given birth). This condition will be peer-delivered by facilitators with lived experience.
Pregnancy Health Education (PHE)
PLACEBO COMPARATORThis time- dose- and attention- matched control condition accounts for the potential effects of time spent and support from group members and facilitators. Participants assigned to the PHE group will also be asked to attend 6, 1-hour, weekly group sessions via Zoom. During the sessions participants receive psychoeducation on body image and disordered eating during pregnancy but will not engage in any dissonance-inducing exercises. Participants will also receive lifestyle education specific to pregnancy (e.g., proper nutrition, sleep, physical activity), tied back to body image and disordered eating.
Interventions
The Body Project is typically delivered as four 1-hour weekly sessions consisting of written, verbal, and behavioral exercises. The sessions aim to induce cognitive dissonance by encouraging participants to challenge the thin-ideal, a theoretically and empirically supported component of ED prevention. This adapted version of the Body Project (the Pregnant Body Project; PBP) consists of 6 1-hour, weekly group sessions delivered via Zoom. Since the target population consists of individuals with histories of an ED or disordered eating behaviors, PBP also includes elements from a treatment intervention (i.e., the Body Project Treatment 8.0 manual). PBP was adapted iteratively with a needs assessment, expert stakeholder input, and participant feedback following a mock trial with individuals with lived experience (i.e., individuals with histories of an ED who have given birth). This condition will be peer-delivered by facilitators with lived experience.
This time- dose- and attention- matched control condition accounts for the potential effects of time spent and support from group members and facilitators. Participants assigned to the PHE group will also be asked to attend 6, 1-hour, weekly group sessions via Zoom. During the sessions participants receive psychoeducation on body image and disordered eating during pregnancy but will not engage in any dissonance-inducing exercises. Participants will also receive lifestyle education specific to pregnancy (e.g., proper nutrition, sleep, physical activity), tied back to body image and disordered eating.
Eligibility Criteria
You may qualify if:
- Within the first or second trimester of pregnancy at enrollment
- years or older
- Able to provide informed consent
- Endorse a self-reported history of an eating disorder or disordered eating behaviors
- Are willing and able to comply with all group and study procedures
- English fluency and literacy
You may not qualify if:
- A diagnosis of bipolar or psychotic disorder, active mania or psychosis or substance abuse, an active eating disorder (active eating disorder symptomology informed by the Screening, Brief Intervention, and Referral to Treatment for Eating Disorders (SBIRT-ED) tool and clinician discretion), being at immediate risk of self-harm
- Do not have access to a device with a camera
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Related Publications (1)
Vanderkruik R, Frisch CM, Woodworth EC, Scharner S, Bartels SJ, Freeman MP, Cohen LS, Stice E. The pregnant body project pilot RCT protocol: Preventing disordered eating behaviors in high-risk pregnant individuals. Contemp Clin Trials. 2025 Sep;156:108039. doi: 10.1016/j.cct.2025.108039. Epub 2025 Jul 31.
PMID: 40752822DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Rachel Vanderkruik, PhD, MSc
The Center for Women's Mental Health at Massachusetts General Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Director of Research and Cognitive Behavioral Services
Study Record Dates
First Submitted
October 18, 2024
First Posted
October 26, 2024
Study Start
June 6, 2024
Primary Completion
April 1, 2026
Study Completion
April 1, 2026
Last Updated
November 17, 2025
Record last verified: 2025-11