New mesh aims to improve breast reconstruction safety and appearance
NCT ID NCT07480421
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a new acellular matrix (a supportive mesh) used with breast implants for immediate reconstruction after mastectomy. The goal is to see if it is safe and helps maintain breast shape and function. One hundred women born female who need breast reconstruction will be enrolled and followed for complications and cosmetic results.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- acellular matrix (a supportive mesh made from processed tissue)
- What this could lead to
- If it works, this could provide a safer, more effective way to support breast reconstruction after mastectomy, reducing complications and improving cosmetic outcomes.
- What could go wrong
- This is an early-stage study with only 100 participants, so results may not apply to everyone. Risks include infection, poor integration, or implant failure.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Jun 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Provide written informed consent; * Female sex at birth; * Be 18 years of age or older; * Have an indication for reconstructive surgeries requiring reinforcement, repair, regeneration, and reconstruction of tissues in the breast region; * Have well-vascularized tissue, according to the physician's clinical assessment, for better cell infiltration, revascularization, and incorporation; * Have an indication for breast reconstruction with Silimed acellular matrix intended for subcutaneous or submuscular implantation; * Have an indication for breast reconstruction with Silimed breast implants; * Have the ability to comply with the protocol for the entire follow-up period. Exclusion Criteria: * Breast augmentation without reconstruction in at least one breast; * Neoplasia of any type that is not yet treated, or is under treatment, or requires surgical removal at the time of implantation\*; * Pregnancy or breastfeeding at the time of implantation; * Smoking, uncontrolled diabetes, obesity (grade 2 or higher) or ASA (American Society of Anesthesiology) pre-surgical classification III/IV (ANNEX I); * Active infection that is not yet treated or is under treatment at any site at the time of implantation; * Active inflammation that is not yet treated or is under treatment at the implantation site; * Report or record of adverse reactions or intolerance or known history of hypersensitivity to collagen or bovine products at the time of implantation; * Report or record of adverse reactions or intolerance to silicone; * Any immune disorder or disease at the time of implantation; * Depressed immune system at the time of implantation; * Report or record of atopy at the time of implantation; * Record or report of use of illicit drugs or medications that increase the risk of immediate post-surgical complications (e.g., medications that interfere with coagulation); * High surgical risk or risk of complications in the immediate post-surgical period estimated before implantation; * Evidence or report of tissue characteristics that are clinically incompatible with successful implantation (e.g., tissues with excessive fibrosis or compromised vascularization); * Having participated in another clinical study up to 6 months before matrix placement, unless the investigator judges it to be beneficial for the participant and not impacting the study; * Any other condition that, based on the opinion of the investigator or designated individual, may prevent the provision of informed consent, make participation in the study unsafe, compromise adherence to the protocol, complicate the interpretation of outcome data, or otherwise interfere with the achievement of the study objectives. * Breast neoplasia where part of the treatment involves an initial surgical approach does not constitute an exclusion criterion, provided that this treatment decision is reported and that the patient is followed by an oncologist.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
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Contact
Email: •••••@•••••
Locations
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Hospital de câncer HCIII (INCA)
Rio de Janeiro, Rio de Janeiro, Brazil
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