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Clinical Trial of New Elastomer for Maxillofacial Prosthetics

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified June 2011 by University of Louisville.
Recruitment status was:  Active, not recruiting
National Institute of Dental and Craniofacial Research (NIDCR)
Information provided by:
University of Louisville Identifier:
First received: July 21, 2005
Last updated: June 10, 2011
Last verified: June 2011

July 21, 2005
June 10, 2011
February 2005
July 2012   (Final data collection date for primary outcome measure)
Non-inferiority of chlorinated polyethylene elastomer (CPE) material [ Time Frame: 10 month ]
  • 1. Non-inferiority of CPE material
  • 2. Non-inferiority of quality of life of CPE material
  • 3. Estimate of service life (longevity)
Complete list of historical versions of study NCT00123097 on Archive Site
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Clinical Trial of New Elastomer for Maxillofacial Prosthetics
Multicenter Trial of CPE for Maxillofacial Prosthetics
The purpose of this study is to evaluate a new rubber material used to make prosthetic replacements of the face lost to cancer, trauma, or birth defects.

Maxillofacial prosthetics is a subspecialty of prosthodontics, providing the clinical rehabilitation treatment of patients who have lost parts of the face due to cancer, trauma, or birth defects. It is an orphan field that:

  • treats few patients, making the subspecialty unprofitable for manufacturers to develop new materials;
  • offers fundamental rehabilitation and improvement in the quality of life to patients who may have exhausted personal or third party funding; and
  • provides a dental solution to an essentially medical problem.

Silicone rubber materials have been used for facial rehabilitation for more than 4 decades with few improvements. There is a clear need for new, alternative, and more economic materials for extraoral maxillofacial prostheses. Research at Gulf South Research Institute in New Orleans by the Principal Investigator and others in the 1970s and 1980s developed an alternative low-cost thermoplastic industrial rubber material (chlorinated polyethylene, CPE) that met all toxicological (safety) and physical (effectiveness) requirements. A Phase 2 clinical trial at the time yielded equivocal results when compared to conventional but costly silicone rubber products.

This research is a controlled, randomized, single-crossover, double-blinded investigator-initiated multicenter Phase 3 clinical trial treating 100 patients that evaluates:

  • experimental thermoplastic CPE; and
  • control silicone (Silastic Adhesive A/MDX4-4210) materials for non-inferiority of CPE based on functional and subjective characteristics, and on the quality of life.

The clinical centers of the trial are at M.D. Anderson Cancer Center in Houston, Texas, and at the Toronto Sunnybrook Regional Cancer Centre in Toronto, Canada.

Phase 3
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
  • Facial Neoplasms
  • Head and Neck Neoplasms
  • Head Injuries, Penetrating
  • Birth Injuries
Device: Chlorinated polyethylene elastomer
Chlorinated polyethylene
Not Provided
Kiat-amnuay S, Jacob RF, Chambers MS, Anderson JD, Sheppard RA, Johnston DA, Haugh GS, Gettleman L. Clinical trial of chlorinated polyethylene for facial prosthetics. Int J Prosthodont. 2010 May-Jun;23(3):263-70.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Unknown status
August 2012
July 2012   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Requires treatment for developmental or acquired extraoral facial defect
  • Fully healed wound (6 months after surgery and/or radiation)
  • Defect no larger than 9 x 12 cm (3.5 x 4.5 inches, the diameter of a giant bronze flask)
  • Cognizant enough to answer questionnaires
  • Agrees to wear the prosthesis at least 6 hours per day
  • Agrees to use the prescribed adhesive (Epithane-3 - now called Daro Adhesive Extra Strength) and clean and store as instructed
  • Plans to be able to return to the research institution for a 10 month period
  • Able to manage prosthesis him/herself or with caregiver for a 10 month period
  • Karnofsky score greater than or equal to 60 (
  • No framework or implant/magnet retention
  • No multiple recurrences of tumor
  • No hypersensitivity to adhesives or test materials
  • No current systemic or topical facial steroid treatment
  • Not legally blind
  • Not expected to have further surgeries to defect, radiation therapy, or other cytoreductive therapy over the next 10 months
  • No evidence of active skin condition/disease
  • Not an infectious risk patient
Sexes Eligible for Study: All
21 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
United States
NIDCR-14543, U01DE014543, 5U01DE014543
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Lawrence Gettleman, DMD, MSD, University of Louisville
University of Louisville
National Institute of Dental and Craniofacial Research (NIDCR)
Study Chair: Sudarat Kiat-amnuay, DDS MS University of Texas Dental Branch
Study Chair: Mark S Chambers, DMD MS MD Anderson Cancer Center, Dept. of Head & Neck Surgery
Principal Investigator: James D Anderson, DDS MScD Toronto Sunnybrook Regional Cancer Centre
Principal Investigator: Lawrence Gettleman, DMD, MSD University of Louisville, School of Dentistry
University of Louisville
June 2011

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP