FDA approves another use of bevacizumab for treating ovarian cancer
FDA approves another use of bevacizumab for treating ovarian cancer7 Dec 2016
The U.S. Food and Drug Administration (FDA) has approved bevacizumab for the treatment of patients with platinum-sensitive recurrent epithelial ovarian, fallopian tube or primary peritoneal cancer. The approval indicates that bevacizumab is used either in combination with carboplatin and paclitaxel or in combination with carboplatin and gemcitabine chemotherapy, followed by bevacizumab alone.
Women are said to have a ‘platinum-sensitive’ form of the disease if a relapse occurs six months or longer following the last treatment with a platinum-based chemotherapy.
Bevacizumab in combination with chemotherapy for platinum-sensitive recurrent epithelial ovarian, fallopian tube or primary peritoneal cancer was granted priority review, and today’s approval is based on results from two randomized controlled Phase 3 studies, GOG-0213 and OCEANS.
GOG-0213 study: 673 patients enrolled
GOG-0213 is an independent Phase 3 study sponsored by the National Cancer Institute (NCI) and conducted by the Gynecologic Oncology Group (GOG) that enrolled 673 women with platinum-sensitive recurrent epithelial ovarian, fallopian tube or primary peritoneal cancer.
The primary endpoint of the study was to assess whether the addition of bevacizumab to chemotherapy (carboplatin and paclitaxel) followed by continued use of bevacizumab alone increased overall survival (OS) compared to chemotherapy alone.
Progression-free survival (PFS) and objective response rate (ORR) were secondary endpoints in the GOG-0213 study.
The GOG-0213 study demonstrated that adding bevacizumab to chemotherapy showed an overall survival difference of five months compared to chemotherapy alone (median OS: 42.6 months vs. 37.3 months).
The GOG-0213 study showed that women lived a median of 3.4 months longer without disease progression with the addition of bevacizumab to chemotherapy compared to chemotherapy alone (median PFS: 13.8 months vs. 10.4 months).
OCEANS trial: improved Progression-free survival
Both the GOG-0213 and OCEANS studies demonstrated a significant improvement in the time women lived without their disease getting worse (progression-free survival, PFS).
The OCEANS study showed that bevacizumab in combination with chemotherapy significantly improved PFS compared to placebo plus chemotherapy (median PFS: 12.4 months vs. 8.4 months).
Overall survival, one of the secondary endpoints in the OCEANS study, was not significantly improved with the addition of bevacizumab to chemotherapy.
Side-effects included fatigue, pain high blood pressure and headaches
Adverse events in both studies were consistent with those seen in previous trials of bevacizumab across tumor types for approved indications, but also included
- low white blood cell count with fever
- low sodium level in the blood
- pain in extremity
- low platelet count
- too much protein in the urine
- high blood pressure and
Bevacizumab’s earlier approval, and comments on this one
In November 2014, bevacizumab was approved in the United States for the treatment of women with platinum-resistant recurrent epithelial ovarian, fallopian tube or primary peritoneal cancer in combination with paclitaxel, pegylated liposomal doxorubicin or topotecan chemotherapy.
“With today’s approval of bevacizumab plus chemotherapy, women in the U.S. with recurrent, platinum-sensitive ovarian cancer now have a treatment option that showed a survival difference of more than five months compared to chemotherapy alone in a clinical trial,” said Sandra Horning, M.D., chief medical officer and head of Global Product Development. “This approval was based in part on a Gynecologic Oncology Group cooperative clinical trial and reinforces the importance of partnerships with study groups to identify new treatment options for people in need.”
Source: eCancer News