Second-line chemotherapy for carboplatin/paclitaxel-refractory ovarian cancer: are multi-agent chemotherapies of little value truly?
Ota, T.; Takeshima, N.; Takizawa, K.
European Journal of Gynaecological Oncology 32(5): 471-475
2011
ISSN/ISBN: 0392-2936 PMID: 22053655 Document Number: 653391
We examined whether second-line multi-agent chemotherapies are of any value for carboplatin/paclitaxel (TC)-refractory ovarian cancer. Subjects included 60 patients with ovarian, peritoneal, or tubal carcinoma who received second-line platinum-based combination chemotherapy. Thirty-nine were treated with irinotecan/cisplatin or nedaplatin and 21 with docetaxel/cisplatin shortly after TC failure. Patients were divided between those who were refractory to initial platinum-based chemotherapy (n = 29, Group A) and those who were platinum-sensitive (n = 31, Group B). Efficacy and safety of the combination chemotherapies were compared between the two groups. Response to the combination chemotherapy was 10.3% in Group A and 41.9% in Group B. Median time to disease progression was 4.02 months and 7.21 months, respectively (p = 0.006), and median survival time was 7.89 months and 9.23 months, respectively (p = 0.003). There was no difference in response between the two regimens. Grade 3-4 hematologic toxicities were more frequent with the docetaxel regimen. The choice between agents for second-line chemotherapy for TC-refractory ovarian cancer should be based on whether the cancer was previously platinum-sensitive. With a history of such response, multi-agent chemotherapies are worth considering after TC failure. With no previous response, the expected efficacy of second-line multi-agent chemotherapy is low, suggesting the use of monochemotherapy.