Blossom® Smart Expander Device for Tissue Expander/Implant-Based Breast Reconstruction

Обзор

The conventional breast tissue expander used for breast reconstruction/ augmentation requires weekly or biweekly injections of saline through the skin and into an integrated port in the implant using a needle and syringe in order to expand breast skin, which is an in-office procedure and can be uncomfortable for patients. Blossom Smart Expander Technology, currently available on the market, aims to achieve the same tissue expansion while avoiding frequent injections through the skin by means of an expansion device that slowly and continuously injects a very small amount of saline. Expansion of the device is based on pressure and volume in the expander, allowing for a tailored expansion process for individual patients' physiology. The purpose of this study is to assess the clinical effectiveness of Blossom Smart Expander Technology in 2-staged tissue expander/implant-based breast reconstruction/ augmentation compared to standard tissue expansion methods.

Подробное описание

All consenting patients presenting to Dr. Dung Nguyen's breast reconstruction clinic and opting for 2-staged tissue expander/implant-based breast reconstruction or augmentation will be given the option of study enrollment. Consenting patients will be enrolled and randomized 1:1 to undergo standard 2-staged breast reconstruction/ augmentation with conventional tissue expansion (control) or with application Blossom Smart Expander Technology (intervention) in the first stage reconstruction (tissue expansion).

The intervention group involves the placement of the Mentor Spectrum tissue expander coupled with Blossom Syringe Assist device. The postoperative follow-up and subsequent surgery to exchange the device to a permanent implant is normal part of standard care.

A Mentor Spectrum adjustable saline breast implant for expansion, coupled with the Blossom Syringe Assist device, will be inserted above the pectoralis major muscle in the usual fashion. The nature of the surgery remains identical to that employed for conventional breast tissue expander insertion for reconstruction or augmentation.

Postoperative follow-up will occur within 1 week of surgery. Weekly follow-ups with documentation of clinical data throughout will also take place until completion of the expansion, stabilization of surgical scars, and removal of all percutaneous drains. Thereafter, follow-ups will be scheduled as needed (monthly) according to usual clinical practice in implant-based breast reconstruction in preparation for the second stage expander to definitive implant exchange.

Вмешательства

• Устройство Blossom tissue expander
  Mentor spectrum adjustable saline breast implant for expansion is placed with the Blossom tissue expander above pectoralis major during first stage surgery of an implant-based breast reconstruction/ augmentation.
• Устройство Standard tissue expansion
  Mentor spectrum adjustable saline breast implant for expansion is placed with (without the Blossom tissue expander) above pectoralis major during first stage surgery of an implant-based breast reconstruction/ augmentation.

Первичные конечные точки

• Time until completion of tissue expansion [Срок оценки: Expansion is expected to be completed between 3 and 6 months after the stage 1 surgery.]
• Incidence of complications [Срок оценки: Monitoring for complications will occur until removal of the tissue expander device during the second stage surgery (approximately 6 months)]

Вторичные конечные точки (3)

• Patient satisfaction (BreastQ) [Срок оценки: Survey responses will be collected at standard post-operative time points (e.g. during each post-operative visit; 1 week, 3 weeks, 6 weeks post-op) until the second stage surgery (3 to 6 months).]
• Patient satisfaction (device specific survey) [Срок оценки: Survey responses will be collected at standard post-operative time points (e.g. during each post-operative visit; 1 week, 3 weeks, 6 weeks post-op) until the second stage surgery (3 to 6 months).]
• Pain associated with tissue expansion [Срок оценки: Patient pain will be assessed routinely (e.g. during each post-operative visit; 1 week, 3 weeks, 6 weeks post-op) until tissue expansion is complete (3 to 6 months).]

Критерии участия

Критерии включения

• Women ages 18 or older; pursuing non-oncologic breast reconstruction or augmentation; and ability to understand and the willingness to sign a written informed consent document (english language). Only patients desiring 2-staged tissue expander/ implant-based breast reconstruction will be approached for potential enrollment in the study.

Критерии исключения

• Patients with active breast cancer; recent steroid use; major medical comorbidities (defined as ASA III or greater); a connective tissue disorder; are pregnant or nursing; are unable to understand and sign the english language consent forms; or age over 65 years, will be excluded from the study.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Простое слепое

Основная цель

Профилактика

Центры проведения

США · 1 центр

• Stanford Hospital and Clinics — Palo Alto

Идентификаторы

NCT: NCT05975372 · 67363

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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