Working… Menu

Natural History of Oro-pharyngeal Cancer Precursors

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00179361
Recruitment Status : Completed
First Posted : September 16, 2005
Last Update Posted : March 2, 2018
Information provided by (Responsible Party):
Nicolas Schlecht, PhD, Albert Einstein College of Medicine

Brief Summary:
Oro-pharyngeal cancers can develop from squamous dysplastic precursor lesions, which occur in a subset of common white (leukoplakia), red (erythroplasia), or mixed oro-pharyngeal plaques. Known risk factors for oro-pharyngeal cancer include tobacco smoke, alcohol consumption, diet and, in a subset of tumors, human papillomavirus (HPV). Along the oro-pharyngeal disease continuum, there may be variations in gene expression precursor lesions as a result of exposure to smoking, alcohol and HPV. However, the components of gene expression that are most likely associated with tumorigenesis in these tissues are poorly understood. This study will focus upon early gene expression profiles in the oral cavity and oropharynx in subjects who have precursor lesions and have been exposed to the common risk factors for carcinoma development including smoking and HPV infection. This application is to conduct pilot testing and establish appropriate procedures for an international prospective cohort study of the natural history of oro-pharyngeal cancer precursors among men and women at high risk of oro-pharyngeal cancer at Montefiore Medical Center, Bronx-NY. Brush biopsy specimens will be used to collect a transepithelial sample of cells from oro-pharyngeal plaques, as well as normal tissue from defined regions of the oral and pharyngeal mucosa. Measurement of gene expression will employ novel high-throughput cDNA microarray analysis and PCR-based HPV DNA testing. Oro-pharyngeal dysplasia will be diagnosed using cytopathology. Under this application, we will assess our planned instruments and procedures on an initial sample of 40 subjects. This planning period will allow for precise identification of methodologies, standardization of instruments and assays to be utilized by additional participating centers in a subsequent application.

Condition or disease
Precancerous Conditions Leukoplakia Erythroplasia Oral Papillomas

Layout table for study information
Study Type : Observational
Actual Enrollment : 374 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Natural History of Oral Cancer Precursors
Study Start Date : November 2004
Actual Primary Completion Date : July 2014
Actual Study Completion Date : July 2014

Biospecimen Retention:   Samples With DNA
Oral brush samples.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   21 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Primary care Dental and Otolaryngology clinics.

Inclusion Criteria:

  • Established residence in the greater Metropolitan area of New York City, including Westchester, Long Island, Southern Connecticut and Northern New Jersey

Exclusion Criteria:

  • No history of therapy for oral cancer in the previous 6 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00179361

Layout table for location information
United States, New York
Montefiore Medical Center
Bronx, New York, United States, 10467
Sponsors and Collaborators
Albert Einstein College of Medicine
Layout table for investigator information
Principal Investigator: Nicolas F Schlecht, PhD Albert Einstein College of Medicine
Publications of Results:
Layout table for additonal information
Responsible Party: Nicolas Schlecht, PhD, Ass. Prof. Epidemiology & Population Health, Albert Einstein College of Medicine Identifier: NCT00179361    
Other Study ID Numbers: 2003-434
First Posted: September 16, 2005    Key Record Dates
Last Update Posted: March 2, 2018
Last Verified: February 2018
Additional relevant MeSH terms:
Layout table for MeSH terms
Precancerous Conditions
Neoplasms, Squamous Cell
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Pathological Conditions, Anatomical