Post Approval Continued Access Study of the MENTOR® Contour Profile Gel Breast Implant (CPG-CA)
The Contour Profile Gel Continued Access Study is designed to demonstrate safety of Mentor's Mammary Prostheses in women who are undergoing primary augmentation, primary reconstruction, or revision. Safety information on the rate of capsular contracture, rupture, and infection will be collected, and used to help determine device safety.
With approval of MemoryShape™ Medium Height, Moderate Profile (CPG 321) Breast Implants on June 14, 2013, CPG CA Study subject enrollment has closed and the study has converted to a post approval study for this style.
|Breast Augmentation Breast Reconstruction Breast Revision||Device: Mentor Siltex® Contour Profile Gel Mammary Prosthesis|
|Study Type:||Expanded Access What is Expanded Access?|
|Official Title:||Post Approval Continued Access Study of the MENTOR® Contour Profile Gel Breast Implant|
|Study Start Date:||August 2004|
Device: Mentor Siltex® Contour Profile Gel Mammary Prosthesis
The CPG mammary prosthesis is a silicone elastomer mammary device with a textured surface. The Siltex® (textured) shell consists of a smooth shell bonded to an additional layer of silicone that has a textured pattern imprinted into its surface. The Siltex® shell is textured to provide a disruptive surface for collagen interface. The CPG implant contains a gel that is a more cohesive silicone gel than that used in other Mentor gel implants. The gel is made from the same materials as Mentor's standard gel. The contour shape of the CPG is designed to provide inferior projection with reduced superior fullness. The CPG mammary prosthesis contains raised orientation marks on the anterior and posterior of the implant which may help the physician ensure proper placement. CPG was available in sizes 120 cc-775 cc and 5 styles with various projection and height options.
With approval of MemoryShape™ (CPG 321) Breast Implants, the study converted to a post approval study for this style.
Silicone gel-filled breast implants were introduced in the early sixties and were in wide-scale distribution by the time the Medical Device Amendments to the Food Drug and Cosmetic Act was passed in 1976. In 1983, gel-filled breast implants were designated as Class III devices requiring premarket approval. In May 1990, the Food and Drug Administration (FDA) published a proposed request (515(b)) for Premarket Approval Applications (PMA) and in April 1991 published the final request. This final publication put manufacturers of gel-filled breast implants on notice that for continued marketing of gel-filled breast implants, a PMA was due to FDA in 90 days from the final publication date.
A premarket approval (PMA) for the Mentor gel-filled breast implants was filed with the FDA in July 1991. At the FDA General and Plastic Surgery Advisory Committee meeting in November 1991, the committee recommended the submission of additional information to establish the safety and effectiveness of gel-filled breast implants.
In January 1992, the FDA Commissioner announced a voluntary moratorium of the sale of gel-filled breast implants to allow the advisory panel time to assess additional information. In April 1992, the moratorium was lifted but only for reconstruction and revision patients. Every patient implanted had to be part of an adjunct study, and had to be offered participation in a registry of gel-filled breast implant patients. In order to be implanted with gel-filled implants for augmentation, women had to be enrolled in a core clinical study.
In September of 2000 the Core Gel study began, leading the way to the November 2006 FDA approval of the Core Gel implant or Memory Gel breast implant.
The objective of the Contour Profile Gel Continued Access is to determine the safety of the Silicone Contour Profile Gel Mammary Prostheses in women who are undergoing primary breast augmentation, primary breast reconstruction, or revision. While Core CPG patient follow-up is being completed, this Continued Access Study was designed to enroll patients at a limited rate per month to allow for continued physician experience with the device and to collect additional safety data to support a future PMA. Safety data will be collected and submitted as supplemental data. The CPG-CA study includes the same original investigators and surgical sites in the Core CPG study. However, not all of the original Core CPG investigators are in the CPG-CA study.
Throughout the duration of this study, patients are required to have follow-up visits at 10 weeks post-surgery and every year after surgery through the 10th year of completion as in the Core CPG study. (This follow-up requirement changed from 10 years to 5 years upon device approval). Unlike the Core CPG study, the CPG-CA study does not have a randomized selection of MRI patients as a required component of the study.
On June 14, 2013, the FDA approved Mentor® MemoryShape™ Breast Implants (CPG Style 321 Medium Height, Moderate Profile) for the following indications:
- Breast Augmentation for women at least 22 years old.
- Breast Reconstruction.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00811525
|Principal Investigator:||William Adams, M.D.||Dallas, TX|
|Principal Investigator:||Frank Barone, M.D.||Toledo, OH|
|Principal Investigator:||Joseph Bauer, M.D.||Alpharetta, GA|
|Principal Investigator:||Michael Bentley, M.D.||Montgomery, AL|
|Principal Investigator:||John Bishop, M.D.||Greenville, SC|
|Principal Investigator:||David Caplin, M.D.||St. Louis, MO|
|Principal Investigator:||E. Dale Collins Vidal, M.D.||Lebanon, NH (Dartmouth-Hitchcock)|
|Principal Investigator:||Craig Colville, M.D.||Toledo, OH|
|Principal Investigator:||Gloria Duda, M.D.||McLean, VA (D.C. Metro area)|
|Principal Investigator:||Barry Fernando, M.D.||Phoenix, AZ|
|Principal Investigator:||William Gorman, M.D.||Austin, TX|
|Principal Investigator:||Scot Glasberg, M.D.||New York, NY|
|Principal Investigator:||Strawford Dees, M.D.||Biloxi, MS|
|Principal Investigator:||Dennis Hammond, M.D.||Grand Rapids, MI|
|Principal Investigator:||Mark Jewell, M.D.||Eugene, OR|
|Principal Investigator:||Robert Kevitch, M.D.||Allentown, PA|
|Principal Investigator:||Shujaat Khan, M.D.||Fort Worth, TX|
|Principal Investigator:||Philip Kierney, M.D.||Puyallup, WA|
|Principal Investigator:||John Lettieri, M.D.||Spartanburg, SC|
|Principal Investigator:||Tim Love, M.D.||Oklahoma City, OK|
|Principal Investigator:||Mark Migliori, M.D.||Edina, MN|
|Principal Investigator:||Bradley Remington, M.D.||Kirkland, WA|
|Principal Investigator:||John Smoot, M.D.||La Jolla, CA|
|Principal Investigator:||Grant Stevens, M.D.||Marina Del Rey, CA|
|Principal Investigator:||Steven Teitelbaum, M.D.||Santa Monica, CA|
|Principal Investigator:||Lewis Berger, M.D.||Tampa, FL|
|Principal Investigator:||Patrick Maxwell, M.D.||Nashville, TN|
|Principal Investigator:||Jack Fisher, M.D.||Nashville, TN|
|Principal Investigator:||David A. Stoker, M.D.||Marina Del Rey, CA|