A New Chapter in Breast Reconstruction: What Conexeu's B.R.E.A.S.T.™ Could Mean for Patients

By Dr. Z. Paul Lorenc, Plastic Surgeon | Lorenc Aesthetic Plastic Surgery

For decades, breast reconstruction after mastectomy has offered women a meaningful but limited set of options: implants, tissue flaps, and fat grafting. Each approach carries its own tradeoffs, and none of them truly restores what was lost at the biological level. They restore shape. They restore volume. But they do not restore the body's own living tissue.

That distinction matters deeply to me as a plastic surgeon. And it is exactly why I joined Conexeu Sciences as a Plastic Surgeon and Director.

Introducing B.R.E.A.S.T.™

Conexeu Sciences recently announced the development of its BIO-REGENERATIVE ERGONOMICALLY ARCHITECTED SMART TISSUE™, or B.R.E.A.S.T.™, a 3D-bioprinted breast matrix built on the company's proprietary CXU™ extracellular matrix platform.

In plain terms: rather than replacing breast tissue with a foreign implant, B.R.E.A.S.T.™ is designed to act as a temporary, resorbable scaffold that guides your body's own cells to grow and rebuild. The goal is for the scaffold to gradually be replaced by the patient's own living tissue over time.

This is not a better implant. It is a fundamentally different approach to what reconstruction can be.

Why This Matters for Patients

Every year in the United States, more than 100,000 women undergo a mastectomy. Roughly two-thirds of those women do not pursue reconstruction at all. The reasons are complex, but the limitations of existing options are part of that picture.

Current reconstruction methods are designed to restore appearance, not biology. B.R.E.A.S.T.™ is being developed with a different goal in mind: giving the body a structure it can recognize as its own, work with, and ultimately replace through its natural healing processes.

As I shared in Conexeu's announcement:

"Nothing can be more beneficial to a patient than knowing their own body could have the ability to repair and regenerate itself. Whether for reconstructive purposes or for aesthetic autologous breast and body enhancement, Conexeu's 3D bioprintable matrix offers the potential towards true regenerative medicine."

That belief sits at the core of everything I do in my practice, and it is why this technology excites me.

Grounded in Science

The CXU™ platform behind B.R.E.A.S.T.™ is not a new idea chasing headlines. It is built on more than a decade of university-based preclinical research, supported by eleven peer-reviewed publications, and protected by issued patents across the U.S., E.U., Japan, and Australia.

The platform is designed to support the natural processes the body already knows how to perform: cell migration, new blood vessel formation, tissue integration, and remodeling. The scaffold provides structural and biological support while those processes unfold, then gradually resorbs as the body takes over.

Conexeu also envisions a personalized approach, using medical imaging such as CT scans to create customized 3D structures tailored to each patient's unique anatomy and reconstruction needs.

Where Things Stand Today

It is important to be clear with patients: B.R.E.A.S.T.™ is an investigational medical device. Its safety and effectiveness have not yet been established, and it has not been submitted to or reviewed by the FDA. The science underlying the CXU™ platform comes from preclinical studies in lab and animal models, which do not automatically predict how a therapy will perform in humans.

This is the beginning of a rigorous path toward clinical development, not the end of one. But it is a beginning worth knowing about.

A Shift I Believe In

Regenerative medicine has long promised more than implants and repair could deliver. Conexeu is working to make that promise real in breast reconstruction, and I am proud to be part of that effort.

If you have questions about your own reconstructive options, or simply want to understand how emerging technologies like this might factor into your care in the future, I welcome that conversation.

To schedule a consultation with Dr. Lorenc, please contact our office at [phone number] or visit [website URL].

B.R.E.A.S.T.™ is an investigational medical device candidate. Safety and effectiveness have not been established. It has not been submitted to or reviewed by the U.S. Food and Drug Administration and is limited by U.S. federal law to investigational use.

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