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Comparison of Mastectomy Expander Trial
Sponsor: Medical University Innsbruck
Summary
Expanders are used outside their intended use, due to two following facts: It is possible that expander implantation exceed the "approved" duration of 6 months (maximal 10 months). Additionally, some participants will receive after mastectomy/expander implantation an adjuvant radiotherapy according to standard of care, which is either a contraindication of the medical device or not yet tested in-vivo by the manufacturer. Requested answers: * how good is the aesthetic outcome of the breast with the expanders and the final implants, and whether any complications occurred during treatment, * how satisfied are subjects and doctors with the outcome of the breast reconstruction, and how the reconstruction affects health-related quality of life from participants, * how does the structural composition of the removed expanders looks like, in order to understand whether radiation therapy has caused changes in the material, * which key immunological factors lead to increased hardening of the tissue around the expander, especially during radiation therapy (capsule formation).
Official title: Comparison of Clinical Outcomes and Molecular Mechanisms After Tissue Expander Implantation in Mastectomy Patients - a Single Center, Randomized Controlled, Exploratory Clinical Trial
Key Details
Gender
FEMALE
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
80
Start Date
2026-03-01
Completion Date
2031-12-31
Last Updated
2026-02-25
Healthy Volunteers
No
Conditions
Interventions
intervention (unilateral/bilateral), scheduled for (NSME/SSME), indication (breast cancer diagnosis (malignancy) with neoadjuvant chemotherapy or DCIS diagnosis without neoadjuvant chemotherapy
Patients who are scheduled for tissue expander-based breast reconstruction will be randomized in one of two expander groups (Arm 1= Motiva Flora® Tissue Expander \& Arm 2 = SILTEX™ BECKER™ expander). Subjects, who are routinely scheduled for radiotherapy (collective I) will subsequently undergo two additional visits. Subjects without scheduled radiotherapy (collective II), will continue without additional visits - unless they need to change their collective for therapeutic reasons. Assesments: 1. efficacy and safety of therapeutic and prophylactic comparative tissue expander-based breast reconstruction 2. structural and functional changes in comparative tissue expanders following exposure to radiotherapy vs. non-radiotherapy