Body composition and outcomes after breast reconstruction
Official title: Investigation Into the Utility of Novel Body Composition Measurements in Association With Outcomes of Breast Reconstruction
Run by University of California, San Francisco · NCT07546331 · Data updated 2026-11-12
This study will see if detailed body composition measurements can help predict complications after mastectomy with immediate breast reconstruction in adult women.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | University of California, San Francisco Academic / other |
| Locations | 1 site (San Francisco, California) |
| Status | Recruiting |
| Started | February 18, 2026 |
| Main results expected | December 31, 2028 |
| Study ends | December 31, 2028 |
| Registry record updated | April 22, 2026 |
| Trial ID | NCT07546331 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are cisgender women age 18 or older with histologically confirmed or high-risk breast malignancy who are scheduled for mastectomy with immediate reconstruction using an implant, tissue expander, or autologous flap and can give informed consent.
✕Probably not a fit
Patients who are male at birth, non-cisgender women, pregnant or breastfeeding, have implanted electronic devices or prosthetic limbs, or have significant medical conditions that contraindicate participation are excluded and would not be expected to benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study enrolls adults undergoing mastectomy with immediate reconstruction and collects body composition measurements alongside chart review, with participants followed for up to two years. Participants are assigned to one of two cohorts and undergo standardized body composition testing and routine clinical follow-up. The primary aim is to determine the feasibility of collecting these measurements; secondary aims compare body composition between those who develop reconstruction complications and those who do not and compare composition measures to standard anthropometric assessments. Analyses will look for associations between specific composition metrics and postoperative outcomes to inform risk stratification.
Why it matters
Potential benefit: If successful, the findings could help surgeons better predict which patients are at higher risk of reconstruction complications and tailor surgical planning or counseling.
How similar studies have gone: Similar work using CT- or bioimpedance-based body composition measures has shown associations with surgical complications in cancer and reconstructive settings, but results have been mixed and this specific application remains under study.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Patients must have histologically confirmed breast malignancy or increased risk of developing a breast malignancy. 2. Age ≥ 18 years. 3. Scheduled to undergo mastectomy with immediate breast reconstruction using a permanent implant, tissue expander, or autologous tissue (e.g. Deep Inferior Epigastric Perforator (DIEP) flap, muscle-sparing Transverse Rectus Abdominis Myocutaneous (msTRAM) flap, Profunda Artery Perforator (PAP) flap). 4. Ability to understand a written informed consent document, and the willingness to sign it. Exclusion Criteria: 1. Any significant medical condition or laboratory abnormalities, which places the subject at unacceptable risk if he/she were to participate in the study. 2. Pregnant or breastfeeding. 3. Patients assigned male at birth. 4. Non-cisgender women. 5. Patients with implanted electronic medical devices (e.g. pacemaker, defibrillator). 6. Patients with prosthetic limbs.
Where it's running
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University of California
San Francisco, California, United States Recruiting
Study contacts
- Principal investigator: Merisas Piper, MD — University of California, San Francisco
- Study coordinator: Michael Choi
- Email: Michael.Choi@ucsf.edu
- Phone: 877-827-3222
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.