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Characterization of the Melanoma-Specific Immune Response
This study is currently recruiting participants.
Verified by University of California, Davis, August 2008
Sponsored by: University of California, Davis
Information provided by: University of California, Davis
ClinicalTrials.gov Identifier: NCT00368615
  Purpose

The aim of this study is to study T-cells. Blood will be collected and the samples will be used to generate T cell clones. Two separate blood draws will be required at the maximum.


Condition Phase
Melanoma
Phase IV

MedlinePlus related topics: Melanoma
U.S. FDA Resources
Study Type: Observational
Study Design: Case Control, Prospective
Official Title: Characterization of the Melanoma-Specific Immune Response

Further study details as provided by University of California, Davis:

Primary Outcome Measures:
  • melanoma [ Time Frame: 2 Years ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • melanoma [ Time Frame: 2 Years ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples With DNA

Biospecimen Description:

Peripheral blood will be collected prior to initiation of chemotherapy. There will be no more than two blood draws per subject. Most subjects will receive a single blood draw; however, some may be asked to return for an additional blood draw if investigators were unable to isolate melanoma-specific immune cells after the first blood draw. Two separate blood draws will be the maximum.


Estimated Enrollment: 20
Study Start Date: August 2007
Estimated Study Completion Date: August 2009
Estimated Primary Completion Date: August 2009 (Final data collection date for primary outcome measure)
Groups/Cohorts
1
Subjects with biopsy proven melanoma
2
Age-matched controls (no evidence of melanoma)

Detailed Description:

The aim of the study is to in-vitro characterize and expand T cells specific for melanoma-derived antigens. Peripheral blood with be collected from 20 volunteers with biopsy proven melanoma and 10 age matched controls. Blood will be collected prior to the initiation of chemotherapy. There will be no more than two blood draws per patient. Most patients will receive a single blood draw; however, some participants may be asked to return for a single additional blood draw if investigators were unable to isolate melanoma-specific immune cells after the first blood draw. Two separate blood draws will be the maximum. The interval between these blood draws will be a minimum of 3 months apart. Blood samples will be used to determine the patient's HLA haplotype via PCR and DNA sequencing. After the patient's haplotype has been established melanoma-specific T cell clones will be generated from the peripheral blood samples and expanded in vitro. These clones will then be assayed for specificity against commercially available melanoma cell lines. The T cell clones will also be assayed for reactivity to melanocyte differentiation antigens such as MART-1 and gp100. If the volunteer requires a palliative resection of a melanoma tumor then the patient's own tumor cells may also be used to test the specificity of the isolated T cell clones. All experiments will be conducted in-vitro.

  Eligibility

Ages Eligible for Study:   18 Years to 85 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Subjects aged 18 years to 85 years who have a biopsy diagnosis of melanoma, and age-matched controls (subjects who do not have a diagnosis of melanoma).

Criteria

Inclusion Criteria:

  • Biopsy diagnosis of malignant melanoma
  • Have had a biopsy diagnosis of malignant melanoma in the past

Exclusion Criteria:

  • Patients taking immunosuppressive medications
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00368615

Contacts
Contact: Jennifer Nava 916-734-1438 jennifer.nava@ucdmc.ucdavis.edu
Contact: Sepideh Bagheri, M.D. 916-734-6547 sepideh.bagheri@ucdmc.ucdavis.edu

Locations
United States, California
University of California, Davis Department of Dermatology Recruiting
Sacramento, California, United States, 95816
Contact: Emanual Maverakis, M.D.     916-734-1438     emanual.maverakis@ucdmc.ucdavis.edu    
Contact: Jennifer Nava     916-734-1438     jennifer.nava@ucdmc.ucdavis.edu    
Principal Investigator: Emanual Maverakis, M.D.            
Sponsors and Collaborators
University of California, Davis
Investigators
Principal Investigator: Emanual Maverakis, M.D. University of California, Davis
  More Information

Additional Information:
No publications provided

Responsible Party: University of California Davis ( Emanual Mavarakis, MD )
Study ID Numbers: 200513097-1
Study First Received: August 24, 2006
Last Updated: August 4, 2008
ClinicalTrials.gov Identifier: NCT00368615  
Health Authority: United States: Institutional Review Board

Keywords provided by University of California, Davis:
melanoma
malignant melanoma

Study placed in the following topic categories:
Neuroectodermal Tumors
Nevus, Pigmented
Neoplasms, Germ Cell and Embryonal
Neuroepithelioma
Nevus
Neuroendocrine Tumors
Melanoma

Additional relevant MeSH terms:
Neoplasms
Neoplasms by Histologic Type
Neoplasms, Nerve Tissue
Nevi and Melanomas

ClinicalTrials.gov processed this record on February 12, 2009