A Pilot Study of Proteomic Evaluation of Epithelial Ovarian Cancer Patients in First Clinical Remission: Development of a Protein Fingerprint Profile Associated With Relapse
Over 80 percent of advanced stage epithelial cancer patients relapse after attaining first
clinical remission with standard platinum/paclitaxel-based chemotherapy. Surrogate
biomarkers are needed for the evaluation of efficacy of treatment and for use as predictors
of disease in screening and for relapse diagnosis. CA-125, the existing ovarian cancer
marker, will become elevated with relapse in some but not all of the 80 percent of patients
for whom it was increased at initial diagnosis. Elevation in CA-125 may precede clinical
evidence of relapse by as much as 6 - 10 months or lag behind clinical relapse by the same
time intervals, making it a less than satisfactory clinical tool. Emerging proteomic
technologies allow for scanning of cellular proteins in a simple, short, reproducible, and
quantitative chemical assay. We hypothesize that changes in a patient's protein pattern will
be detectable and will be reliably associated with relapse. This protocol is a pilot study
for our ability to ascertain and evaluate samples from ovarian cancer patients followed in
first clinical remission, and investigate whether analysis of sequential protein
fingerprints will yield a reproducible pattern of change that may be associated with
relapse.
Observational
N/A
Elise C Kohn, M.D.
Principal Investigator
National Cancer Institute (NCI)
United States: Federal Government
000018
NCT00001938
November 1999
Name | Location |
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National Institutes of Health Clinical Center, 9000 Rockville Pike | Bethesda, Maryland 20892 |