NCT04661501

Brief Summary

This study is a randomized single blinded prospective clinical trial comparing the surgical outcomes of four different acellular dermal matrixes (ADMs) after primary breast reconstruction. ADMs are used in conjunction with tissue expanders or breast implants to reinforce the recreated breast pocket. Currently, 4 different ADMS are commercially available: AlloDerm, DermaCell, Allomax and Flex HD. It is unclear which ADM is clinically superior. The objective of the study is to compare the complications and post-op care of 4 different ADMs within a 2 year follow up to elucidate their surgical outcomes.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
328

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

4 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 23, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

November 25, 2020

Completed
15 days until next milestone

First Posted

Study publicly available on registry

December 10, 2020

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

December 16, 2024

Status Verified

December 1, 2024

Enrollment Period

5.1 years

First QC Date

October 23, 2020

Last Update Submit

December 13, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Seroma incidence

    Incidence of seroma formation requiring intervention including aspiration in-office or ultrasound-guided drainage

    Within 6 months of stage I or stage II surgery

Secondary Outcomes (14)

  • Mean drain duration (Days)

    Within 1 month of stage I or stage II surgery

  • Mean drain output (ml)

    Within 1 month of stage I or stage II surgery

  • Mean seroma volume (ml)

    Within 6 months of stage I or stage II surgery

  • Mean aspirations per seroma

    Within 6 months of stage I or stage II surgery

  • Hematoma incidence

    Within 1 month of stage I or stage II surgery

  • +9 more secondary outcomes

Study Arms (4)

AlloDerm group

ACTIVE COMPARATOR

Device for immediate implant based breast reconstruction.

Device: AlloDerm

AlloMax group

ACTIVE COMPARATOR

Device for immediate implant based breast reconstruction.

Device: AlloMax

DermACELL group

ACTIVE COMPARATOR

Device for immediate implant based breast reconstruction.

Device: DermACELL

Flex HD group

ACTIVE COMPARATOR

Device for immediate implant based breast reconstruction.

Device: Flex HD

Interventions

AlloDermDEVICE

Acellular Dermal Matrices (ADMs) are breast reconstruction material. They are donated cadaveric dermis that is aseptically processed or sterilized in order to remove cellular and immunogenic components to prevent host reactions.

AlloDerm group
AlloMaxDEVICE

Acellular Dermal Matrices (ADMs) are breast reconstruction material. They are donated cadaveric dermis that is aseptically processed or sterilized in order to remove cellular and immunogenic components to prevent host reactions.

AlloMax group
DermACELLDEVICE

Acellular Dermal Matrices (ADMs) are breast reconstruction material. They are donated cadaveric dermis that is aseptically processed or sterilized in order to remove cellular and immunogenic components to prevent host reactions.

DermACELL group
Flex HDDEVICE

Acellular Dermal Matrices (ADMs) are breast reconstruction material. They are donated cadaveric dermis that is aseptically processed or sterilized in order to remove cellular and immunogenic components to prevent host reactions.

Flex HD group

Eligibility Criteria

Age21 Years - 65 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • All woman aged 21 years or older but less that 65 undergoing unilateral or bilateral mastectomy with alloplastic breast reconstruction using ADM.
  • Breast reconstruction must be done by means of a two staged process using tissue expanders and ADM based reconstruction followed by implant tissue expander to implant exchange.

You may not qualify if:

  • Patients undergoing autologous reconstruction either at the time of mastectomy or in a delayed fashion.
  • Patients with a history of previous breast reconstruction procedures.
  • Patients with prior radiation treatment to the breast or with prior mantle radiation
  • Any patient with a contraindication to breast reconstruction
  • Patients undergoing an axillary node dissection with clearance
  • Patients with an allergy to Polysporin or any of its ingredients.
  • Patients with contraindications to any of the acellular dermal matrices:
  • DermACELL: Allergy to Gentamicin, Vancomycin\[12\]
  • The surgeon performing the breast reconstruction may also deem a patient ineligible if intraoperatively, there is evidence of significant mastectomy flap ischemia prior to the initiation of the breast reconstruction procedure.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Mount Saint Joseph's Hospital

Vancouver, British Columbia, V5T 3N4, Canada

RECRUITING

Vancouver General Hospital

Vancouver, British Columbia, V5Z 1M9, Canada

RECRUITING

UBC Hospital

Vancouver, British Columbia, V6T 1Z7, Canada

RECRUITING

Saint Paul's Hospital

Vancouver, British Columbia, V6Z 1Y6, Canada

RECRUITING

Study Officials

  • Dr. Nancy Van Laeken

    University of British Columbia

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Dr. Nancy Van Laeken

CONTACT

Raveena Gowda

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Treatment information will be non-blinded to the surgical staff who will then proceed to order the appropriate ADM product to be available at the time of the study participants scheduled breast reconstruction. Additionally, randomization will occur independently for each surgeon prevent bias from arising as a result of the surgeon performing the reconstruction.
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor, Division of Plastic Surgery

Study Record Dates

First Submitted

October 23, 2020

First Posted

December 10, 2020

Study Start

November 25, 2020

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

December 16, 2024

Record last verified: 2024-12

Locations