Study: NCT04779151

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Dostarlimab
Description: Substance: immunoglobulin G4 (IgG4) humanized monoclonal antibody (mAb) that binds with high affinity to PD-1 Manufacturer: Tesaro Inc. Dose: 500 mg every 21 days for the first 4 cycles, followed by 1,000 mg every 42 days cycle (ie, Q6W)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Niraparib
Description: Substance: Inhibitor of poly-adenosine diphosphate \[ADP\] ribose polymerase (PARP) Manufacturer: Tesaro Inc. Dose: Flat-fixed dose (if \<77kg or platelets \<150,000 μL: 200mg; if \>/=77kg and platelets \>/= 150,000μL: 300mg)