Breast biomechanics and bra support after surgery and radiotherapy.
Official title: Breast Cancer BRAs Study (Breast Cancer Biomechanics of Radiotherapy And Surgery): The Effects of Breast Surgery and Radiotherapy on the Breast Biomechanics and Breast Support Requirements of Women Treated for Breast Cancer.
Run by Portsmouth Hospitals NHS Trust · NCT07135960 · Data updated 2026-11-12
We will test whether 3D scans and sensors can measure how surgery with or without radiotherapy changes breast movement and bra support needs in women treated for unilateral breast cancer.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 45 (estimated) |
| Sponsor | Portsmouth Hospitals NHS Trust Government |
| Locations | 1 site (Portsmouth) |
| Status | Recruiting |
| Started | February 6, 2025 |
| Main results expected | January 28, 2027 |
| Study ends | January 28, 2027 |
| Registry record updated | September 17, 2026 |
| Trial ID | NCT07135960 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are women aged 18 or older with unilateral early or locally advanced breast cancer who have had or will have surgery with or without adjuvant radiotherapy and can travel to the University of Portsmouth biomechanics laboratory and provide informed consent.
✕Probably not a fit
People with metastatic or bilateral breast cancer, very recent surgery or radiotherapy within the exclusion timeframes, active postoperative breast infection or dressings, pregnancy or breastfeeding, epilepsy, high frailty, prior contralateral breast surgery, or who require an interpreter are not eligible and are unlikely to benefit from participation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Researchers at Portsmouth Hospitals and the University of Portsmouth will recruit women treated for unilateral breast cancer from Queen Alexandra Hospital and invite them to the University of Portsmouth biomechanics lab for testing after surgery and/or after radiotherapy, with an optional pre-surgery visit. The protocol uses 3D surface scans and wearable sensors to quantify breast shape and movement, comparing the treated breast to the contralateral breast as an internal control. Participants will complete short questionnaires about their bra requirements, exercise habits, and their experience of the testing procedures. The study excludes people with metastatic or bilateral disease, recent surgery or radiotherapy within the exclusion windows, active postoperative infection or dressings, pregnancy or breastfeeding, epilepsy, high frailty, or those requiring an interpreter.
Why it matters
Potential benefit: If successful, this could lead to better-targeted bra and support recommendations that improve comfort, reduce tissue strain, and enhance quality of life after breast cancer treatment.
How similar studies have gone: Biomechanics measurements have been used in healthy women and athletes, but applying these methods to guide bra support after breast cancer surgery or radiotherapy is largely novel and not yet established.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Female * 18 years of age or above * Early or locally advanced breast cancer classified as B5a or B5b (radical treatment intent) * Unilateral breast cancer (contralateral breast used as control) * Receiving or has received breast cancer surgery * +/- Adjuvant radiotherapy * Able to travel to the University of Portsmouth Breast biomechanics laboratory * Participant has capacity to consent. Exclusion Criteria: * Metastatic breast cancer diagnosis * \< 2 weeks post-operative * \< 4 weeks post-radiotherapy * Active post-operative breast infection * Requirement of ongoing breast dressings * Previous breast surgery to contralateral breast * Bilateral breast cancer * Epilepsy (due to strobe on 3D scanner) * Pregnancy or \<6 weeks post-partum * Breastfeeding * Rockwood Frailty score \>5 (or those unable to ambulate un-aided) * Requiring interpreter.
Where it's running
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Queen Alexandra Hospital
Portsmouth, United Kingdom Recruiting
Study contacts
- Principal investigator: Edward St John — Portsmouth Hospitals NHS Trust
- Study coordinator: Amy Huseyin
- Email: Amyrose.Huseyin@porthosp.nhs.uk
- Phone: 02392 286000
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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.