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Medline ® Abstract for Reference 17

of 'First-line chemotherapy for advanced (stage III or IV) epithelial ovarian, fallopian tubal, and peritoneal cancer'

17
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Randomized phase 3 trial of interferon gamma-1b plus standard carboplatin/paclitaxel versus carboplatin/paclitaxel alone for first-line treatment of advanced ovarian and primary peritoneal carcinomas: results from a prospectively designed analysis of progression-free survival.
AU
Alberts DS, Marth C, Alvarez RD, Johnson G, Bidzinski M, Kardatzke DR, Bradford WZ, Loutit J, Kirn DH, Clouser MC, Markman M, GRACES Clinical Trial Consortium
SO
Gynecol Oncol. 2008;109(2):174. Epub 2008 Mar 7.
 
OBJECTIVES: Interferon gamma (IFN-gamma) is a pleiotropic cytokine with antiproliferative, immunostimulatory, and chemosensitization properties. This trial was designed to evaluate IFN-gamma 1b plus carboplatin and paclitaxel in treatment-naive ovarian cancer (OC) and primary peritoneal carcinoma (PPC) patients.
METHODS: Eligible patients were randomized to 6 cycles of carboplatin/paclitaxel every 3 weeks or the same in combination with IFN-gamma 1b (100 microg 3x/wk subcutaneously). The primary endpoint was overall survival (OS) time (target hazard ratio (HR)=0.77). Secondary endpoints included progression-free survival (target HR=0.7), based on blinded review of serial imaging scans, physical exams, and CA-125 levels.
RESULTS: 847 patients were enrolled (OC 774, PPC 73) in Europe (n=539) and North/South America (n=308) from January29, 2002 to March 31, 2004 and stratified according to: optimal debulking (n=271) versus suboptimal debulking with plans for interval debulking (PID) (n=238) or no PID (n=338). The study stopped early following a protocol-defined second interim analysis which revealed significantly shorter OS time in patients receiving IFN-gamma 1b plus chemotherapy compared to chemotherapy alone (1138 days vs. not estimable, HR=1.45, 95% CI=1.15-1.83). At the time of the analysis, 169 of 426 (39.7%) patients in the IFN-gamma 1b plus chemotherapy group had died compared to 128 of 421 (30.4%) in the chemotherapy alone group. Serious adverse events were more common in the IFN-gamma 1b plus chemotherapy group (48.5% vs. 35.4%), primarily due to a higher incidence of serious hematological toxicities (34.5% vs. 22.7%).
CONCLUSIONS: Treatment with IFN-gamma 1b in combination with carboplatin/paclitaxel does not have a role in the first-line treatment of advanced ovarian cancer.
AD
Arizona Cancer Center, University of Arizona, Tucson, AZ, USA. dalberts@azcc.arizona.edu
PMID