Chemosensitivity testing with ChemoFx and overall survival in primary ovarian cancer.
OBJECTIVE
We sought to determine the association between tumor responses in vitro to platinum therapy by using the ChemoFx drug response marker and overall survival (OS) after first-line platinum-based chemotherapy in patients with advanced-stage primary ovarian cancer (POC).


METHODS
Chemosensitivity testing was performed in vitro on tumors from 192 POC patients. Tumors were classified as responsive, intermediately responsive, and nonresponsive to chemotherapy. Physicians made all management decisions. Survival status was retrieved from the Social Security Death Index. OS was modeled using Cox proportional hazard regression analysis.


RESULTS
Median OS was 72.5 months for patients with tumors categorized as responsive, 48.6 months for intermediately responsive, and 28.2 months for nonresponsive (P = .03; hazard ratio, 0.70; 95% confidence interval, 0.50-0.97). The ChemoFx prediction of responses to platinum agents was an independent predictor of OS.


CONCLUSIONS
Results of chemosensitivity testing with a drug response marker for therapy was predictive of OS in POC patients.
Herzog
Thomas J
TJ
Irving Comprehensive Cancer Center, Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, New York-Presbyterian Hospital, Columbia University College of Physicians and Surgeons, 161 Fort Washington Avenue, New York, NY 10032, USA. th2135@columbia.edu
Krivak
Thomas C
TC
Fader
Amanda Nickles
AN
Coleman
Robert L
RL
D000230:Adenocarcinoma / Q000188:drug therapy* / Q000473:pathology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000494:pharmacology* / Q000627:therapeutic use; D016190:Carboplatin / Q000008:administration & dosage / Q000494:pharmacology*; D002945:Cisplatin / Q000008:administration & dosage / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D005260:Female; D006801:Humans; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy*; D009367:Neoplasm Staging; D010051:Ovarian Neoplasms / Q000188:drug therapy* / Q000473:pathology; D016016:Proportional Hazards Models; D015996:Survival Rate; D055815:Young Adult
D016190:Carboplatin; D002945:Cisplatin