TY - JOUR
T1 - Evaluation of new platinum-based treatment regimens in advanced-stage ovarian cancer
T2 - A phase III trial of the gynecologic cancer intergroup
AU - Bookman, Michael A.
AU - Brady, Mark F.
AU - McGuire, William P.
AU - Harper, Peter G.
AU - Alberts, David S.
AU - Friedlander, Michael
AU - Colombo, Nicoletta
AU - Fowler, Jeffrey M.
AU - Argenta, Peter A.
AU - De Geest, Koen
AU - Mutch, David G.
AU - Burger, Robert A.
AU - Swart, Ann Marie
AU - Trimble, Edward L.
AU - Accario-Winslow, Chrisann
AU - Roth, Lawrence M.
PY - 2009/3/20
Y1 - 2009/3/20
N2 - Purpose To determine if incorporation of an additional cytotoxic agent improves overall survival (OS) and progression-free survival (PFS) for women with advanced-stage epithelial ovarian carcinoma (EOC) and primary peritoneal carcinoma who receive carboplatin and paclitaxel. Patients and Methods Women with stages III to IV disease were stratified by coordinating center, maximal diameter of residual tumor, and intent for interval cytoreduction and were then randomly assigned among five arms that incorporated gemcitabine, methoxypolyethylene glycosylated liposomal doxorubicin, or topotecan compared with carboplatin and paclitaxel. The primary end point was OS and was determined by pairwise comparison to the reference arm, with a 90% chance of detecting a true hazard ratio of 1.33 that limited type I error to 5% (two-tail) for the four comparisons. Results Accrual exceeded 1,200 patients per year. An event-triggered interim analysis occurred after 272 events on the reference arm, and the study closed with 4,312 women enrolled. Arms were well balanced for demographic and prognostic factors, and 79% of patients completed eight cycles of therapy. There were no improvements in either PFS or OS associated with any experimental regimen. Survival analyses of groups defined by size of residual disease also failed to show experimental benefit in any subgroup. Conclusion Compared with standard paclitaxel and carboplatin, addition of a third cytotoxic agent provided no benefit in PFS or OS after optimal or suboptimal cytoreduction. Dual-stage, multiarm, phase III trials can efficiently evaluate multiple experimental regimens against a single reference arm. The development of new interventions beyond surgery and conventional platinum-based chemotherapy is required to additionally improve outcomes for women with advanced EOC.
AB - Purpose To determine if incorporation of an additional cytotoxic agent improves overall survival (OS) and progression-free survival (PFS) for women with advanced-stage epithelial ovarian carcinoma (EOC) and primary peritoneal carcinoma who receive carboplatin and paclitaxel. Patients and Methods Women with stages III to IV disease were stratified by coordinating center, maximal diameter of residual tumor, and intent for interval cytoreduction and were then randomly assigned among five arms that incorporated gemcitabine, methoxypolyethylene glycosylated liposomal doxorubicin, or topotecan compared with carboplatin and paclitaxel. The primary end point was OS and was determined by pairwise comparison to the reference arm, with a 90% chance of detecting a true hazard ratio of 1.33 that limited type I error to 5% (two-tail) for the four comparisons. Results Accrual exceeded 1,200 patients per year. An event-triggered interim analysis occurred after 272 events on the reference arm, and the study closed with 4,312 women enrolled. Arms were well balanced for demographic and prognostic factors, and 79% of patients completed eight cycles of therapy. There were no improvements in either PFS or OS associated with any experimental regimen. Survival analyses of groups defined by size of residual disease also failed to show experimental benefit in any subgroup. Conclusion Compared with standard paclitaxel and carboplatin, addition of a third cytotoxic agent provided no benefit in PFS or OS after optimal or suboptimal cytoreduction. Dual-stage, multiarm, phase III trials can efficiently evaluate multiple experimental regimens against a single reference arm. The development of new interventions beyond surgery and conventional platinum-based chemotherapy is required to additionally improve outcomes for women with advanced EOC.
UR - http://www.scopus.com/inward/record.url?scp=63049115790&partnerID=8YFLogxK
U2 - 10.1200/JCO.2008.19.1684
DO - 10.1200/JCO.2008.19.1684
M3 - Article
C2 - 19224846
AN - SCOPUS:63049115790
SN - 0732-183X
VL - 27
SP - 1419
EP - 1425
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
IS - 9
ER -