GSK Announces U.S. Food and Drug Administration Approval of Additional Indication for Zejula (niraparib) for Late-line Treatment for Women with Recurrent Ovarian Cancer - Seite 2

• tBRCA+ platinum-sensitive disease, ORR of 39% (95% CI, 17,64);
• tBRCA+ platinum-resistant disease, ORR of 29% (95% CI, 11,52);
• tBRCA+ platinum-refractory disease, ORR of 19% (95% CI, 4,46); or
• non-BRCA mut, GIS-positive, platinum-sensitive disease, ORR of 20% (95% CI, 8,37).

The safety profile was consistent with that seen in the Phase 3 NOVA trial in the recurrent maintenance population. Most common grade ≥3 adverse reactions reported in ≥10% of patients in the QUADRA study included thrombocytopenia (28%), anemia (27%), neutropenia (13%) and nausea (10%).

Dr. Kathleen Moore, Lead Investigator of the QUADRA study; Director, Oklahoma TSET Phase 1 Program; Associate Professor, Section of Gynecologic Oncology, Stephenson Cancer Center, University of Oklahoma, said: “Ovarian cancer has a high rate of recurrence, so there is a real need for therapies for women whose cancer has progressed through multiple lines of treatment and who have few or no options left. It’s meaningful to see that Zejula has been approved as a late-line treatment for women including those with and without BRCA mutations.”

Ovarian cancer affects nearly 222,000 women in the U.S., and approximately 85% of women with advanced ovarian cancer will see the disease return. With each recurrence, the time a woman may spend without her cancer progressing until the next recurrence gets shorter. Currently, there are few effective options available for treatment of platinum-resistant/refractory advanced ovarian cancer or HRD+ ovarian cancer in the late-line setting. Zejula received initial FDA approval in March 2017 for the maintenance treatment of adult patients with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer, who are in a complete or partial response to platinum-based chemotherapy. It is the only oral, once-daily PARP inhibitor.

About QUADRA
QUADRA is a large multi-center, open-label, single-arm, Phase 2 registrational study that evaluated the safety and activity of niraparib in adult patients with relapsed, high-grade serous epithelial ovarian, fallopian tube, or primary peritoneal cancer who were treated with three or more previous chemotherapy regimens. Four hundred and sixty-three patients were enrolled and received oral niraparib at a starting dose of 300 mg once daily. Treatment was continued until disease progression. The primary objective was the proportion of patients achieving an investigator-assessed confirmed overall response in patients with HRD+ tumors, including patients with BRCA and without BRCA mutations, sensitive to their last platinum-based therapy. Additional objectives of the study were to evaluate the efficacy of niraparib in the broad late-line ovarian cancer population overall, and in subgroups defined by clinical and molecular biomarkers, such as platinum-sensitivity and BRCA+ and HRD status.