A Study of Niraparib Combined With Bevacizumab Maintenance Treatment in Patients With Advanced Ovarian Cancer

Status: open

Phase 2, A Study of Niraparib Combined With Bevacizumab Maintenance Treatment in Patients With Advanced Ovarian Cancer Following Response on Front-Line Platinum-Based Chemotherapy.

Treatment for Ovarian Cancer

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This is a Phase 2, open-label, single arm study to evaluate progression free survival rate at 18 months as well as evaluating the safety and efficacy of niraparib in combination with bevacizumab as maintenance therapy in patients with advanced ovarian cancer patients who have received prior front-line therapy with platinum-based chemotherapy in combination with bevacizumab and who have had at least one prior attempt at debulking surgery. Niraparib is an orally active poly adenosine diphosphate-ribose (PARP) inhibitor. Niraparib will be administered by mouth once daily continuously during a 21-day cycle. Bevacizumab will be administered intravenously D1 of each 21-day cycle for up to 15 mos, including the duration of the front-line therapy. Health-related quality of life will be measured by Eastern Cooperative Oncology Group performance status (ECOG). Safety and tolerability will be assessed by clinical review of adverse events (AEs), physical examinations, electrocardiograms (ECGs), RECIST tumor assessments and safety laboratory values.

Inclusion Criteria: Must be female, be ≥ 18 years of age, be able to understand the study procedures, and agree to participate in the study by providing written informed consent; Newly diagnosed International Federation of Gynecology and Obstetrics (FIGO) Stage IIIB to IV epithelial ovarian, fallopian tube, or peritoneal cancer and have recovered from debulking surgery; high-grade serous or endometrioid or high-grade predominantly serous or endometrioid histology, regardless of HRD or germline breast cancer susceptibility gene (gBRCA) mutation status. Patients with non mucinous epithelial ovarian cancer and gBRCA mutation are eligible; completed front-line, platinum-based chemotherapy with CR, PR, or NED and have first study treatment dose within 12 weeks of the first day of the last cycle of chemotherapy:A platinum-based regimen must have consisted of a minimum of 6 and a maximum of 9 treatment cycles. Patients who discontinued platinum-based therapy early as a result of non hematologic toxicity specifically related to the platinum regimen (ie, neurotoxicity or hypersensitivity) are eligible if they have received a minimum of 4 cycles of the platinum regimen. IV, intraperitoneal, or neoadjuvant platinum-based chemotherapy is allowed; for weekly therapy, 3 weeks is considered 1 cycle. Interval debulking is allowed; Patients must have received, prior to enrollment, a minimum of 3 cycles of bevacizumab in combination with the last 3 cycles of platinum-based chemotherapy. Patients who undergo interval debulking surgery are eligible if they have received only 2 cycles of bevacizumab in combination with the last 3 cycles of platinum-based chemotherapy; Patients must have had 1 attempt at optimal debulking surgery; Patients must have either CA-125 in the normal range or CA-125 decrease by more than 90% during front-line therapy that is stable for at least 7 days (ie, no increase > 15% from nadir); Patients must have adequate organ function; Eastern Cooperative Oncology Group (ECOG) score of 0 or 1; Normal blood pressure or well-controlled hypertension; Agree to complete PROs (quality of life [QoL] questionnaire) throughout the study, including after study treatment discontinuation; Able to take oral medication; Patient must agree to undergo tumor HRD testing at screening; Patients of childbearing potential must have a negative serum or urine pregnancy test (beta human chorionic gonadotropin) within 72 hours prior to receiving the first dose of study treatment; Must be postmenopausal, free from menses for > 1 year, surgically sterilized, or willing to use adequate contraception to prevent pregnancy or must agree to abstain from activities that could result in pregnancy throughout the study, starting with enrollment through180 days after the last dose of study treatment. Exclusion Criteria: Ovarian tumors of non-epithelial origin (eg, germ cell tumor) or any low grade tumors; Clinically significant cardiovascular disease (eg, significant cardiac conduction abnormalities, uncontrolled hypertension, myocardial infarction, cardiac arrhythmia or unstable angina < 6 months to enrollment, New York Heart Association (NYHA) Grade II or greater congestive heart failure, serious cardiac arrhythmia requiring medication, Grade II or greater peripheral vascular disease, and history of cerebrovascular accident (CVA) within 6 months); Gastrointestinal disorders or abnormalities that would interfere with absorption of study treatment; History of bowel obstruction, including sub-occlusive disease, related to the underlying disease or history of abdominal fistula, gastrointestinal perforation, or intra-abdominal abscesses. Evidence of rectosigmoid involvement by pelvic examination or bowel involvement on computed tomography (CT) scan or clinical symptoms of bowel obstruction; Proteinuria as demonstrated by urine protein:creatinine ratio ≥ 1.0 at screening or urine dipstick for proteinuria ≥ 2 (patients discovered to have ≥ 2 proteinuria on dipstick at baseline should undergo a 24-hour urine collection and must demonstrate < 2 g of protein in 24 hours to be eligible); Any known history or current diagnosis of myelodysplastic syndrome (MDS) or acute myelogenous leukemia (AML); Received treatment previously with a PARP inhibitor; Other than ovarian cancer, the patient has been diagnosed or treated for invasive cancer less than 5 years prior to study enrollment. Patients with cervical carcinoma in situ, non melanomatous skin cancer, and ductal carcinoma in situ definitively treated are allowed. Considered a poor medical risk due to a serious, uncontrolled medical disorder, non malignant systemic disease, or active, uncontrolled infection; Known contraindication to PARP inhibitors or vascular endothelial growth factor (VEGF) inhibitors; Increased bleeding risk due to concurrent conditions (eg, major injuries or surgery within the past 28 days prior to start of study treatment, history of CVA, transient ischemic attack, subarachnoid hemorrhage, or clinically significant hemorrhage within the past 3 months); Immunocompromised (patients with splenectomy are allowed); Known, active hepatic disease (ie, hepatitis B or C). A QT interval prolongation > 480 ms at screening. If a patient has a prolonged QT interval and the prolongation is deemed to be due to a pacemaker upon Investigator evaluation (ie, the patient otherwise has no cardiac abnormalities), then the patient may be eligible to participate in the study following discussion with the Medical Monitor; Pregnant, breastfeeding, or expecting to conceive children while receiving study drug or for 180 days after the last dose of study drug


This trial is sponsored by Tesaro, Inc..

Providers Associated With This Trial

Principle Investigator

  • Rocconi RodneyView Profile
    Rodney P. Rocconi, M.D., F.A.C.O.G.Gynecologic OncologistInterim Director of Mitchell Cancer Institute; Chief of Gynecologic Oncology Service; Associate Director for Clinical Research, Abraham A. Mitchell Clinical Cancer Research Scholar; Professor of Interdisciplinary Clinical Oncology

Sub Investigators

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