Clinical trial Recruiting at 1 site Observational Ages 18 and up

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 typeObservational
Ages18 Years and up
SexAll
Enrollment40 (estimated)
SponsorUniversity of California, San Francisco
Academic / other
Locations1 site (San Francisco, California)
StatusRecruiting
StartedFebruary 18, 2026
Main results expectedDecember 31, 2028
Study endsDecember 31, 2028
Registry record updatedApril 22, 2026
Trial IDNCT07546331 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

  • 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.