Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study of Niraparib Maintenance Treatment in Patients With Advanced Ovarian Cancer Following Response on Front-Line Platinum-Based Chemotherapy
Brief Summary: This study aims to assess efficacy of Niraparib (GSK3985771) as maintenance treatment in participants with Stage III or IV ovarian cancer. Participants must have completed front-line platinum based regimen with complete response (CR) or partial response (PR). Data collection for Secondary Outcome measures is ongoing and the approximate duration of the study will be 7 years.


Options:
A: Inclusion Criteria:

* Females aged 18 years or more
* Signed informed consent and ability to comply with the protocol
* Histologically confirmed, with core biopsy from a disease site as minimum requirement (cytology alone is insufficient for diagnosis):

  * Epithelial ovarian carcinoma
  * Primary peritoneal carcinoma of Müllerian histological type
  * Fallopian tube carcinoma
* FIGO stage IC or above, which may be based on clinical and radiological assessment in patients who have not undergone immediate primary surgery
* Confirmed high-risk histological subtype for patients with FIGO stage IC/IIA disease, namely:

  * High grade serous carcinoma
  * Clear cell carcinoma
  * Other histological subtype considered poorly differentiated/grade 3
* ECOG Performance Status (PS) 0-2
* Life expectancy \> 12 weeks
* Adequate bone marrow function:

  * Absolute Neutrophil Count (ANC) ≥ 1.5 x 109/l
  * Platelets (Plt) ≥ 100 x 109/l
  * Haemoglobin (Hb) ≥ 9g/dl (can be post transfusion)
* Adequate liver function (within 28 days prior to randomisation):

  * Serum bilirubin (BR) ≤ 1.5 x ULN
  * Serum transaminases ≤ 3 x ULN in the absence of parenchymal liver metastases or ≤ 5 x ULN in the presence of parenchymal liver metastases
* Adequate renal function as defined by GFR (Glomerular Filtration Rate) ≥ 30ml/min.

Exclusion Criteria:

* Non-epithelial ovarian cancer, including malignant mixed Müllerian tumours (carcinosarcomas)
* Peritoneal cancer that is not of Müllerian origin, including mucinous histology
* Borderline tumours (tumours of low malignant potential)
* Prior systemic anti-cancer therapy for ovarian cancer (for example chemotherapy, monoclonal antibody therapy, tyrosine kinase inhibitor therapy or hormonal therapy)
* Previous malignancies within 5 years prior to randomisation apart from: adequately treated carcinoma in-situ of the cervix, breast ductal carcinoma in-situ, non-melanomatous skin cancer; or previous/synchronous early-stage endometrial cancer defined as stage IA (FIGO 2009) grade 1 or 2 endometrioid cancers with no lymphovascular space invasion
* Pre-existing sensory or motor neuropathy grade ≥ 2
* Evidence of any other disease/metabolic dysfunction that in the opinion of the investigator would put the subject at high-risk of treatment-related complications or prevent compliance with the trial protocol
* Planned intraperitoneal cytotoxic chemotherapy
* Any previous radiotherapy to the abdomen or pelvis
* Sexually active women of childbearing potential not willing to use adequate contraception (e.g. oral contraceptives, intrauterine device or barrier method of contraception in conjunction with spermicidal jelly or surgically sterile) for the study duration and at least six months afterwards
* Pregnant or lactating women
* Treatment with any other investigational agent prior to protocol defined progression
* Known hypersensitivity to carboplatin, paclitaxel or their excipients (including cremophor)
* History or clinical suspicion of brain metastases or spinal cord compression. CT/MRI of the brain is mandatory in the case of suspected brain metastases. Spinal MRI is mandatory in the case of suspected spinal cord compression. Patients with brain or meningeal metastases are not eligible
B: Inclusion criteria:

* Participants must have histologically diagnosed high-grade serous or endometrioid, or high-grade predominantly serous or endometrioid ovarian cancer, fallopian tube cancer, or primary peritoneal cancer that is Stage III or IV according to Federation Internationale de Gynécologie et d'Obstétrique (FIGO) criteria.
* Participants with inoperable Stage III and IV disease; All Stage IV participants with operable disease; Participants with stage III or IV disease treated with neoadjuvant chemotherapy and interval debulking surgery; and Participants with stage III disease who have visible residual disease after primary debulking surgery.
* Participants who have received intraperitoneal chemotherapy; All participants must have had more than or equal to (\>=)6 and less than or equal to (\<=)9 cycles of platinum-based therapy; Participants must have had \>=2 post-operative cycles of platinum-based therapy following interval debulking surgery; Participants must have physician assessed Complete response (CR) or Partial response (PR) after \>=3 cycles of therapy; and Participants must have either Cancer antigen 125 (CA-125) in the normal range or CA-125 decrease by more than 90 percent(%) during their front-line therapy that is stable for at least 7 days (no increase more than (\>)15% from nadir).
* Participants must be randomized within 12 weeks of the first day of the last cycle of chemotherapy.
* All participants must agree to undergo central tumor HRD testing.
* Participants of childbearing potential must have a negative serum or urine pregnancy test (beta human chorionic gonadotropin \[hCG\]) within 7 days prior to receiving the first dose of study treatment.

Exclusion criteria:

* Participant has mucinous or clear cell subtypes of epithelial ovarian cancer, carcinosarcoma or undifferentiated ovarian cancer.
* Participants with Stage III disease who have had complete cytoreduction (no visible residual disease) after primary debulking surgery.
* Participant has undergone more than two debulking surgeries for the study disease.
* Participant is pregnant, breastfeeding, or expecting to conceive children while receiving study treatment and for up to 180 days after the last dose of study treatment.
* Participant has a known hypersensitivity to the components of niraparib or its excipients.
* Participant has received prior treatment with a known PARP inhibitor or has participated in a study where any treatment arm included administration of a known PARP inhibitor.
* Participant is to receive bevacizumab as maintenance treatment.
* Participant has had investigational therapy administered within 4 weeks, or within a time interval less than at least 5 half-lives of the investigational agent, whichever is longer, prior to the first scheduled day of dosing in this study.
* Participant has had any known \>=Grade 3 anemia, neutropenia or thrombocytopenia due to prior chemotherapy that persisted \>4 weeks.
* Participant has a condition (such as transfusion dependent anemia or thrombocytopenia), therapy, or laboratory abnormality that might confound the study results or interfere with the participation for the full duration of the study treatment, including:

  1. Participant received a transfusion (platelets or red blood cells) within 2 weeks of the first dose of study treatment.
  2. Participant received colony-stimulating factors (e.g., granulocyte colony stimulating factor \[G-CSF\], granulocyte macrophage colony-stimulating factor \[GM-CSF\] or recombinant erythropoietin) within 2 weeks prior to the first dose of study treatment.
* Participant has been diagnosed and/or treated for invasive cancer less than 5 years prior to study enrollment.
C: Inclusion Criteria:

* Patients with a histologic diagnosis of epithelial ovarian cancer, peritoneal primary carcinoma or fallopian tube cancer; International Federation of Gynecology and Obstetrics (FIGO) stage III with any gross (macroscopic or palpable) residual disease or FIGO stage IV, defined surgically at the completion of initial abdominal surgery and with appropriate tissue available for histologic evaluation; the minimum surgery required was an abdominal surgery providing tissue for histologic evaluation and establishing and documenting the primary site and stage, as well as a maximal effort at tumor debulking; if additional surgery was performed, it should have been in accordance with appropriate surgery for ovarian or peritoneal carcinoma described in the Gynecologic Oncology Group (GOG) Surgical Procedures Manual; however, the surgeon is not required to have performed all of the items contained in this section of the GOG Surgical Procedures Manual; those patients with stage III cancer in which the largest maximal diameter of any residual tumor implant at the completion of this initial surgery is no greater than 1 cm will be defined as "optimal;" all others will be defined as "suboptimal;" measurable disease on post-operative imaging studies is not required for eligibility
* Patients with the following histologic epithelial cell types are eligible: serous adenocarcinoma, endometrioid adenocarcinoma, mucinous adenocarcinoma, undifferentiated carcinoma, clear cell adenocarcinoma, mixed epithelial carcinoma, transitional cell carcinoma, malignant Brenner's Tumor, or adenocarcinoma not otherwise specified (N.O.S.); however, the histologic features of the tumor must be compatible with a primary Müllerian epithelial adenocarcinoma; if doubt exists, it is recommended that the investigator should have the slides reviewed by an independent pathologist or, if necessary, the Pathology Co-Chair, prior to entry; patients may have co-existing fallopian tube carcinoma in-situ so long as the primary origin of invasive tumor is ovarian, peritoneal or fallopian tube
* Absolute neutrophil count (ANC) greater than or equal to 1,500/µl equivalent to Common Toxicity Criteria for Adverse Events version (v)3.0 (CTCAE) grade 1; this ANC cannot have been induced or supported by granulocyte colony stimulating factors
* Platelets greater than or equal to 100,000/µl; (CTCAE grade 0-1)
* Creatinine =\< 1.5 x institutional upper limit normal (ULN), CTCAE grade 1
* Bilirubin less than or equal to 1.5 x ULN (CTCAE grade 1)
* Serum glutamic oxaloacetic transaminase (SGOT) and alkaline phosphatase less than or equal to 2.5 x ULN (CTCAE grade 1)
* Neuropathy (sensory and motor) less than or equal to CTCAE grade 1
* Prothrombin time (PT) such that international normalized ratio (INR) is =\< 1.5 (or an in-range INR, usually between 2 and 3, if a patient is on a stable dose of therapeutic warfarin for management of venous thrombosis including pulmonary thrombo-embolus) and a partial thromboplastin time (PTT) \< 1.2 times the upper limit of normal
* Patients with a GOG Performance Status of 0, 1, or 2
* Patients must be entered between 1 and 12 weeks after initial surgery performed for the combined purpose of diagnosis, staging and cytoreduction
* Patients with measurable and non-measurable disease are eligible; patients may or may not have cancer-related symptoms
* Patients who have met the pre-entry requirements
* An approved informed consent and authorization permitting release of personal health information must be signed by the patient or guardian
* Patients in this trial may receive ovarian estrogen +/- progestin replacement therapy as indicated at the lowest effective dose(s) for control of menopausal symptoms at any time, but not progestins for management of anorexia while on protocol directed therapy or prior to disease progression

Exclusion Criteria:

* Patients with a current diagnosis of borderline epithelial ovarian tumor (formerly "tumors of low malignant potential") or recurrent invasive epithelial ovarian, primary peritoneal or fallopian tube cancer treated with surgery only (such as patients with stage Ia or Ib low grade epithelial ovarian or fallopian tube cancers) are not eligible; patients with a prior diagnosis of a borderline tumor that was surgically resected and who subsequently develop an unrelated, new invasive epithelial ovarian, peritoneal primary or fallopian tube cancer are eligible, provided that they have not received prior chemotherapy for any ovarian tumor
* Patients who have received prior radiotherapy to any portion of the abdominal cavity or pelvis are excluded; prior radiation for localized cancer of the breast, head and neck, or skin is permitted, provided that it was completed more than three years prior to registration, and the patient remains free of recurrent or metastatic disease
* Patients who have received prior chemotherapy for any abdominal or pelvic tumor including neo-adjuvant chemotherapy for their ovarian, primary peritoneal or fallopian tube cancer are excluded; patients may have received prior adjuvant chemotherapy for localized breast cancer, provided that it was completed more than three years prior to registration, and that the patient remains free of recurrent or metastatic disease
* Patients who have received any targeted therapy (including but not limited to vaccines, antibodies, tyrosine kinase inhibitors) or hormonal therapy for management of their epithelial ovarian or peritoneal primary cancer
* Patients with synchronous primary endometrial cancer, or a past history of primary endometrial cancer, are excluded, unless all of the following conditions are met: stage not greater than I-B; no more than superficial myometrial invasion, without vascular or lymphatic invasion; no poorly differentiated subtypes, including papillary serous, clear cell or other FIGO grade 3 lesions
* With the exception of non-melanoma skin cancer and other specific malignancies as noted above, patients with other invasive malignancies who had (or have) any evidence of the other cancer present within the last five years or whose previous cancer treatment contraindicates this protocol therapy are excluded
* Patients with acute hepatitis or active infection that requires parenteral antibiotics
* Patients with serious non-healing wound, ulcer, or bone fracture; this includes history of abdominal fistula, gastrointestinal perforation or intra-abdominal abscess within 28 days; patients with granulating incisions healing by secondary intention with no evidence of fascial dehiscence or infection are eligible but require weekly wound examinations
* Patients with active bleeding or pathologic conditions that carry high risk of bleeding, such as known bleeding disorder, coagulopathy, or tumor involving major vessels
* Patients with history or evidence upon physical examination of central nervous system (CNS) disease, including primary brain tumor, seizures not controlled with standard medical therapy, any brain metastases, or history of cerebrovascular accident (CVA, stroke), transient ischemic attack (TIA) or subarachnoid hemorrhage within six months of the first date of treatment on this study
* Patients with clinically significant cardiovascular disease; this includes:
* Uncontrolled hypertension, defined as systolic \> 150 mm Hg or diastolic \> 90 mm Hg
* Myocardial infarction or unstable angina \< 6 months prior to registration
* New York Heart Association (NYHA) grade II or greater congestive heart failure
* Serious cardiac arrhythmia requiring medication; this does not include asymptomatic, atrial fibrillation with controlled ventricular rate
* CTCAE grade 2 or greater peripheral vascular disease (at least brief (\< 24 hrs) episodes of ischemia managed non-surgically and without permanent deficit)
* History of CVA within six months
* Patients with known hypersensitivity to Chinese hamster ovary cell products or other recombinant human or humanized antibodies
* Patients with clinically significant proteinuria; urine protein should be screened by urine protein-creatinine ratio (UPCR); the UPCR has been found to correlate directly with the amount of protein excreted in a 24 hour urine collection; specifically, a UPCR of 1.0 is equivalent to 1.0 gram of protein in a 24 hour urine collection; obtain at least 4 ml of a random urine sample in a sterile container (does not have to be a 24 hour urine); send sample to lab with request for urine protein and creatinine levels \[separate requests\]; the lab will measure protein concentration (mg/dL) and creatinine concentration (mg/dL); the UPCR is derived as follows: protein concentration (mg/dL)/creatinine (mg/dL); patients must have a UPCR \< 1.0 to allow participation in the study
* Patients with or with anticipation of invasive procedures as defined below:
* Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to the first date of bevacizumab/placebo therapy (cycle 2)
* Major surgical procedure anticipated during the course of the study; this includes, but is not limited to abdominal surgery (laparotomy or laparoscopy) prior to disease progression, such as colostomy or enterostomy reversal, interval or secondary cytoreductive surgery, or second look surgery; please consult with the study chair prior to patient entry for any questions related to the classification of surgical procedures
* Core biopsy, within 7 days prior to the first date of bevacizumab/placebo therapy (cycle 2)
* Patients with GOG Performance Grade of 3 or 4
* Patients who are pregnant or nursing; bevacizumab should not be administered to nursing women; patients of childbearing potential must agree to use contraceptive measures during study therapy and for at least six months after completion of bevacizumab therapy
* Patients who have received prior therapy with any anti-vascular endothelial growth factor (VEGF) drug, including bevacizumab
* Patients with clinical symptoms or signs of gastrointestinal obstruction and who require parenteral hydration and/or nutrition
* Patients with medical history or conditions not otherwise previously specified which in the opinion of the investigator should exclude participation in this study; the investigator should feel free to consult the study chair or study co-chairs for uncertainty in this regard
D: Inclusion Criteria:

* Female patients with newly diagnosed, histologically confirmed, high risk advanced (FIGO stage III - IV) BRCA mutated high grade serous or high grade endometrioid ovarian cancer, primary peritoneal cancer and / or fallopian - tube cancer who have completed first line platinum based chemotherapy (intravenous or intraperitoneal).
* Stage III patients must have had one attempt at optimal debulking surgery (upfront or interval debulking). Stage IV patients must have had either a biopsy and/or upfront or interval debulking surgery.
* Documented mutation in BRCA1 or BRCA2 that is predicted to be deleterious or suspected deleterious (known or predicted to be detrimental/lead to loss of function).
* Patients who have completed first line platinum (e.g. carboplatin or cisplatin), containing therapy (intravenous or intraperitoneal) prior to randomisation:
* Patients must have, in the opinion of the investigator, clinical complete response or partial response and have no clinical evidence of disease progression on the post treatment scan or rising CA-125 level, following completion of this chemotherapy course. Patients with stable disease on the post-treatment scan at completion of first line platinum-containing therapy are not eligible for the study.
* Patients must be randomized within 8 weeks of their last dose of chemotherapy

Exclusion Criteria:

* BRCA1 and/or BRCA2 mutations that are considered to be non detrimental (e.g. "Variants of uncertain clinical significance" or "Variant of unknown significance" or "Variant, favor polymorphism" or "benign polymorphism" etc).
* Patients with early stage disease (FIGO Stage I, IIA, IIB or IIC)
* Stable disease or progressive disease on the post-treatment scan or clinical evidence of progression at the end of the patient's first line chemotherapy treatment.
* Patients where more than one debulking surgery has been performed before randomisation to the study. (Patients who, at the time of diagnosis, are deemed to be unresectable and undergo only a biopsy or oophorectomy but then go on to receive chemotherapy and interval debulking surgery are eligible).
* Patients who have previously been diagnosed and treated for earlier stage ovarian, fallopian tube or primary peritoneal cancer.
* Patients who have previously received chemotherapy for any abdominal or pelvic tumour, including treatment for prior diagnosis at an earlier stage for their ovarian, fallopian tube or primary peritoneal cancer. (Patients who have received prior adjuvant chemotherapy for localised breast cancer may be eligible, provided that it was completed more than three years prior to registration, and that the patient remains free of recurrent or metastatic disease).
* Patients with synchronous primary endometrial cancer unless both of the following criteria are met: 1) stage \<2 2) less than 60 years old at the time of diagnosis of endometrial cancer with stage IA or IB grade 1 or 2, or stage IA grade 3 endometrioid adenocarcinoma OR ≥ 60 years old at the time of diagnosis of endometrial cancer with Stage IA grade 1 or 2 endometrioid adenocarcinoma. Patients with serous or clear cell adenocarcinoma or carcinosarcoma of the endometrium are not eligible.

Answer: B