['ovarian cancer']
['niraparib', 'bevacizumab']

        Inclusion Criteria:

        A patient will be eligible for inclusion only if all of the following criteria are
        fulfilled:

          1. Recurrent platinum-sensitive epithelial ovarian, fallopian tube, or peritoneal cancer
             (platinum sensitivity defined as no recurrence within 6 months of last receipt of
             platinum/chemotherapy).

          2. High-grade serious or high-grade endometrioid histology.

          3. Patient consents to perform HRD test.

               -  Patients with known BRCA status: BRCA positive patients must submit the tissue
                  for HRD test, though these patients need not to wait for HRD test results and can
                  be randomized in HRD positive stratum.

               -  If tumor tissue is not sufficient to perform HRD test: these patients shall be
                  randomized in HRD negative stratum as HRD unknown.

          4. Prior line of therapy: Patients must have received platinum-containing therapy for
             primary disease.

               -  No limits on number of platinum-based therapies. Population of patients who has
                  previously received ≥ 3 lines of therapy for relapsed disease will be capped at
                  40%.

               -  Up to one non-platinum-based line of therapy in recurrent setting.

               -  Patients who are treated with bevacizumab just prior to entering in the trial
                  must not have progressed under or within 3 months after bevacizumab.

               -  Patients may have participated in a PARP inhibitor trial as first-line
                  maintenance therapy and have not progressed within 3 months after PARP/placebo.
                  Patients who received PARP inhibitor after relapse (definitive or maintenance
                  therapy) are not eligible.

          5. Target group: Age 18+

          6. Histological confirmed ovarian, fallopian tube or peritoneal cancers

          7. Patients must give informed consent

          8. Patients may have undergone primary or interval debulking surgery

          9. Patients may have received bevacizumab though no other prior use of anti-angiogenic
             therapy

         10. Patients may have received a PARP inhibitor as first-line maintenance therapy.

         11. Patients must have disease that is measurable according to RECIST or assessable
             according to the GCIG criteria

         12. The patient agrees to complete PROs (QoL questionnaire) during study treatment AND at
             one additional time point 8 weeks following progression of disease

         13. ECOG performance status 0-2

         14. Adequate organ function

               -  Absolute neutrophil count (ANC) ≥1,5 x 109/L

               -  Platelets >100 x 109/L

               -  Hemoglobin ≥ 9g/dl

               -  Serum creatinine ≤1.5x upper limit of normal (ULN) or calculated creatinine
                  clearance ≥50mL/min using Cockcroft-Gault formula

               -  Total bilirubin ≤1.5x ULN

               -  Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤2.5x ULN
                  unless liver metastases are present, in which case they must be ≤5x ULN.

         15. Able to take oral medications

         16. Life expectancy of at least 12 weeks

         17. Patients must fulfill all inclusions criteria and according to investigator fit to
             receive niraparib and/or bevacizumab.

         18. Women of childbearing potential must use adequate birth control for the duration of
             study participation

        Exclusion Criteria:

        A patient will not be eligible for inclusion if any of the following criteria are
        fulfilled:

          1. Ovarian sarcomas, small cell carcinoma with neuroendocrine differentiation,
             non-epithelial cancers and cancer types not mentioned in the inclusion criteria

          2. Concurrent cancer therapy

          3. Concurrent treatment with an investigational agent or participation in another
             clinical trial

          4. Major injuries or surgery within the past 21 days prior to start of study treatment
             with incomplete wound healing and/or planned surgery during the on-treatment study
             period

          5. Previous malignant disease: patients are not eligible for the study if diagnosis,
             detection or treatment of invasive cancer (other than ovarian cancer; with the
             exception of basal or squamous cell carcinoma of the skin that was definitively
             treated) was detected within 2 years prior to randomization

          6. Active infections or other serious underlying significant medical illness, abnormal
             laboratory finding or psychiatric illness/social situation that would, in the
             Investigator's judgment, makes the patient inappropriate for this study

          7. Gastrointestinal disorders or abnormalities that would interfere with absorption of
             the study drug

          8. History of bowel obstruction, including sub-occlusive disease, related to the
             underlying disease and history of abdominal fistula, gastrointestinal perforation or
             intra-abdominal abscess. Evidence of recto-sigmoid involvement by pelvic examination
             or bowel involvement on CT scan or clinical symptoms of bowel obstruction

          9. Known contraindications to PARP inhibitors or VEGF directed therapy

         10. Known uncontrolled hypersensitivity to the investigational drugs

         11. History of major thromboembolic event defined as:

               -  Uncontrolled pulmonary embolism (PE)

               -  Deep venous thrombosis (DVT)

               -  Other related conditions, though patients with stable therapeutic anticoagulation
                  for more than three months prior randomization are eligible for this study. This
                  also apply to PE & DVT.

         12. History of a cerebral vascular accident, transient ischemic attack or subarachnoid
             hemorrhage within the past 3 months

         13. History of clinically significant hemorrhage in the past 3 months

         14. Uncontrolled and/or symptomatic CNS metastasis or leptomeningeal carcinomatosis
             (Dexamethasone/prednisone therapy will be allowed if administered as stable dose for
             at least one month prior randomization)

         15. Significant cardiovascular diseases, including uncontrolled hypertension, clinically
             relevant cardiac arrhythmia, unstable angina or myocardial infarction within 6 months
             prior to randomization, congestive heart failure > NYHA III, severe peripheral
             vascular disease, QT prolongation >470 msec ,clinically significant pericardial
             effusion

         16. Pregnancy or breastfeeding. Patients with preserved reproductive capacity, unwilling
             to use a medically acceptable method of contraception for the duration of the trial
             and for 3 months afterwards.

         17. Radiographic evidence of cavitation or necrotic tumors with invasion of adjacent major
             blood vessels

         18. Active or chronic hepatitis C and/or B infection

         19. Persistence of clinically relevant therapy related toxicity from previous chemotherapy

         20. Proteinuria as demonstrated by: (a) urine protein: creatinine (UPC) ratio >/= 1.0 at
             screening OR (b) urine dipstick for proteinuria >/=2+ (patients discovered to have
             >/=2+ proteinuria on dipstick urinalysis at baseline should undergo a 24 hr urine
             collection and must demonstrate </=1g of protein in24 hours to be eligible

         21. Patients must not have any known history of MDS

         22. Patients must not have known persistent (> 4 weeks) ≥ Grade 2 hematological toxicity
             from prior cancer therapy

         23. Patients must not have known ≥ Grade 3 thrombocytopenia or anemia with the last
             chemotherapy regimen.
      