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Crossover Study to Assess the Relative Bioavailability and Bioequivalence of Niraparib Tablet Compared to Niraparib Capsule

An Open-Label, Randomized-Sequence, Multicenter, Single-Crossover Study to Assess the Relative Bioavailability and Bioequivalence of Niraparib Tablet Formulation Compared to Niraparib Capsule Formulation in Patients With Advanced Solid Tumors

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03329001
Enrollment
236
Registered
2017-11-01
Start date
2017-12-04
Completion date
2023-06-15
Last updated
2024-07-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neoplasms

Keywords

PARP inhibitor, niraparib, Solid Tumor, Zejula

Brief summary

This is a three stage, open label, randomized-sequence, single-crossover Phase 1 study to evaluate the relative bioavailability (BA) and Bioequivalence (BE) of niraparib administered as a tablet formulation compared to the reference capsule formulation currently marketed in the United States. Stage 3 evaluates the effect of a high-fat meal on niraparib pharmacokinetics (PK) following a single dose of the tablet. The Extension Phase of this study is to enable participants enrolled in the study to continue to receive treatment with niraparib tablets if they are tolerating it and, in the Investigator's opinion, may receive benefit.

Interventions

DRUGNiraparib Tablet

Niraparib tablet formulation

DRUGNiraparib Capsule

Niraparib capsule formulation

Sponsors

Tesaro, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key inclusion criteria: PK Phase: To be considered eligible to participate in this study, all of the following requirements must be met: * Participants with histologically or cytologically confirmed diagnosis of metastatic or locally advanced solid tumors that have failed to respond to standard therapy, has progressed despite standard therapy, or for which no standard therapy exists, and who may benefit from treatment with a poly (adenosine diphosphate-ribose) polymerase (PARP) inhibitor as assessed by the Investigator. * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2. * Adequate organ function as defined: Absolute neutrophil count ≥ 1,500 per microliter (/μL) (For Stage 3: \>=1000/μL); Platelets ≥ 100,000/μL; Hemoglobin ≥ 9 grams per deciliter (g/dL) (5.6 millimolar \[mM\]); Serum creatinine ≤ 1.5 × the upper limit of normal (ULN) or a calculated creatinine clearance ≥ 60 milliliters per minute (mL/min) using the Cockcroft-Gault equation or 24-hour urine creatinine clearance.; Total bilirubin ≤ 1.5 × ULN except in participants with Gilbert's syndrome. Participants with Gilbert's syndrome may enroll if direct bilirubin ≤ 1.5 × ULN of the direct bilirubin; Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 × ULN unless liver metastases are present, in which case, they must be ≤ 5 × ULN. * Participant has recovered to Grade 1 toxicity from prior cancer therapy (a participant with Grade 2 neuropathy or Grade 2 alopecia is an exception to this criterion and may qualify for this study). * Female participant of childbearing potential is not breastfeeding, has a negative serum pregnancy test within 72 hours prior to taking study drug and agrees to abstain from activities that could result in pregnancy from Screening through 180 days after the last dose of study drug. * Male participant agrees to use an adequate method of contraception and not donate sperm starting with the first dose of study drug through 90 days after the last dose of study drug. * (For Stage 3): CNS inclusion - Based on screening brain magnetic resonance imaging indicating no evidence of brain metastasis or needing immediate local therapy. * Participant is able to eat a high fat meal. * Participant is able to fast for a minimum of 10 hours before start of visit and for an additional 4 hours after study visit. Extension Phase: * ECOG performance status of 0 to 2. * Adequate organ function as defined: Absolute neutrophil count ≥ 1,500/μL (For Stage 3: \>=1000/μL); Platelets ≥ 100,000/μL; Hemoglobin ≥ 9 g/dL (5.6 mM); serum creatinine ≤ 1.5 × the ULN or a calculated creatinine clearance ≥ 60 mL/min (For Stage 3: ≥ 30 mL/min) using the Cockcroft-Gault equation or 24-hour urine creatinine clearance; Total bilirubin ≤ 1.5 × ULN except in participant with Gilbert's syndrome. Participants with Gilbert's syndrome may enroll if direct bilirubin ≤ 1.5 × ULN of the direct bilirubin; AST and ALT ≤ 2.5 × ULN unless liver metastases are present, in which case, they must be ≤5 × ULN * Female participant of childbearing potential is not breastfeeding, has a negative serum pregnancy test within 72 hours prior to taking study drug and agrees to abstain from activities that could result in pregnancy from Screening through 180 days after the last dose of study drug. * Male participant agrees to use an adequate method of contraception and not donate sperm starting with the first dose of study drug through 90 days after the last dose of study drug. Key

Exclusion criteria

PK Phase: * Known diagnosis of immunodeficiency * Symptomatic uncontrolled brain or leptomeningeal metastases. * Major surgery within 3 weeks of starting the study or participant has not recovered from any effects of any major surgery. * Participant is considered a poor medical risk due to a serious, uncontrolled medical disorder; nonmalignant systemic disease; or active, uncontrolled infection. * Known history of myelodysplastic syndrome or acute myeloid leukemia. * Participant is currently taking any of the following P-glycoprotein (P-gp) inhibitors: amiodarone, azithromycin, captopril, carvedilol, clarithromycin, conivaptan, cyclosporine, diltiazem, dronedarone, erythromycin, felodipine, itraconazole, ketoconazole, lopinavir and ritonavir, quercetin, quinidine, ranolazine, ticagrelor, and verapamil (Does not apply for Extension Phase). * Participant taking proton pump inhibitors, antacids, or histamine 2 blockers within 48 hours prior to study drug administration (Does not apply for Extension Phase). * Participant has gastric, gastro-esophageal or esophageal cancer; participant is unable to swallow orally administered medication; or participant has gastrointestinal disorders or significant gastrointestinal resection likely to interfere with the absorption of niraparib. * Participant has known active hepatic disease * Participant has a past or current history of chronic alcohol use. * Participant has significant pleural effusion or ascites that is expected to require drainage during the PK Phase (Does not apply for Extension Phase). * For Stage 3 only: Participant is currently taking a lipase inhibitor or cholesterol absorption inhibitor, such as orlistat or ezetimibe, respectively. (Does not apply for participation in Extension Phase of this study).

Design outcomes

Primary

MeasureTime frameDescription
Time From Administration of the Dose to the First Quantifiable Concentration (Tlag) for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of tlag. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Vz/F for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Vz/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
AUC(0-t) for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0-t). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
AUC(0 to Inf) for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0 to inf). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Cmax for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Cmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Tmax for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Tmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
T1/2 for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of T1/2. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
CL/F for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of CL/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Vz/F for Niraparib-Stage 3 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Vz/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC[0-t]) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0-t). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC[0 to Inf]) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0 to inf). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Maximum Observed Plasma Concentration (Cmax) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Cmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Time to Reach Maximum Observed Plasma Concentration (Tmax) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Tmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Terminal Half-life (T1/2) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of T1/2. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Apparent Total Body Clearance (CL/F) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of CL/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Apparent Terminal Volume of Distribution (Vz/F) for Niraparib-Stage 1 PK PhasePre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Vz/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
AUC(0-t) for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0-t). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
AUC(0 to Inf) for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0 to inf). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Cmax for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Cmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
Tmax for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of Tmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
T1/2 for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of T1/2. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.
CL/F for Niraparib-Stage 2 PK PhasePre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment periodBlood samples were collected at indicated time points for pharmacokinetic assessment of CL/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Secondary

MeasureTime frameDescription
Number of Participants With TEAEs Leading to Discontinuation -Stage 1 PK Phase (Periods 1 and 2 Only)Up to 16 daysAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. Number of participants with TEAEs leading to discontinuation is reported. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.
Number of Participants With TEAEs and Serious TEAEs-Stage 2 PK Phase (Periods 1 and 2 Only)Up to 24 daysAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.
Number of Participants With TEAEs-leading to Discontinuation Stage 2 PK Phase (Periods 1 and 2 Only)Up to 24 daysAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. Number of participants with TEAEs leading to discontinuation is reported. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.
Number of Participants With TEAEs and Serious TEAEs-Stage 3 PK Phase (Periods 1 and 2 Only)Up to 45 daysAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. TEAEs reported under Niraparib tablets under fasted and fed arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet fasted and fed, respectively.
Number of Participants With TEAEs-leading to Discontinuation Stage 3 PK Phase (Periods 1 and 2 Only)Up to 45 daysAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. Number of participants with TEAEs leading to discontinuation is reported. TEAEs reported under Niraparib tablets under fasted and fed arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet fasted and fed, respectively.
Number of Participants With TEAEs and Serious TEAEs - Extension PhaseUp to approximately 5 years 5 monthsAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. A summary of number of participants with any TEAEs and serious TEAEs is presented. Serious TEAEs are subset of TEAEs. TEAEs were coded using the Medical Dictionary for Regulatory Affairs (MedDRA dictionary).
Number of Participants With TEAEs-leading to Discontinuation - Extension PhaseUp to approximately 5 years 5 monthsAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. A summary of number of participants who discontinued due to any TEAEs is presented. TEAEs were coded using the Medical Dictionary for Regulatory Affairs (MedDRA dictionary).
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs-Stage 1 PK Phase (Periods 1 and 2 Only)Up to 16 daysAn adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. A serious adverse event (SAE) is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.

Countries

United States

Participant flow

Recruitment details

This was a 3-stage, single cross-over study. The study had a pharmacokinetic (PK) phase consisting of stages 1, 2, and 3 and an Extension Phase. The Extension Phase based on Investigator and Sponsor's decision provided qualifying participants continued access to niraparib therapy.

Pre-assignment details

A total of 236 participants were enrolled. The Safety Population comprised all participants who received any amount of niraparib during the PK Phase and Extension Phase of the study.

Participants by arm

ArmCount
Stage 1: Niraparib Tablet/Capsule
Participants received a single oral dose of 300 milligrams (mg) niraparib tablet in a fasted state in Period 1, followed by a wash-out period of 7 days. In Period 2, participants received a single oral dose of 3 capsules of 100 mg niraparib in a fasted state followed by a 7-day wash-out period. After the last dose of niraparib, participants who did not enter the Extension Phase were followed for up to 30 days (safety follow-up \[f/u\]) while participants eligible for Extension Phase proceeded for Extension Phase screening. Eligible participants then entered the Extension Phase, where they received 300 mg or 200 mg niraparib tablets or capsules for once daily dosing depending on their body weight and platelet count.
15
Stage 1: Niraparib Capsule/Tablet
Participants received a single oral dose of 3x100 mg niraparib capsules in a fasted state in Period 1, followed by a wash-out period of 7 days. In Period 2, participants received a single oral dose of 300 mg niraparib tablet in a fasted state followed by a 7-day wash-out period. After the last dose of niraparib, participants who did not enter the Extension Phase were followed for up to 30 days (safety f/u) while participants eligible for Extension Phase proceeded for Extension Phase screening. Eligible participants then entered the Extension Phase, where they received 300 mg or 200 mg niraparib tablets or capsules for once daily dosing depending on their body weight and platelet count.
14
Stage 2: Niraparib Tablet/Capsule
Participants received a single oral dose of 300 mg niraparib tablet in a fasted state in Period 1, followed by a wash-out period of 14 days. In Period 2, participants received a single oral dose of 3 capsules of 100 mg niraparib in a fasted state followed by a 7-day wash-out period. After the last dose of niraparib, participants who did not enter the Extension Phase were followed for up to 30 days (safety f/u) while participants eligible for Extension Phase proceeded for Extension Phase screening. Eligible participants then entered the Extension Phase, where they received 300 mg or 200 mg niraparib tablets or capsules for once daily dosing depending on their body weight and platelet count.
85
Stage 2: Niraparib Capsule/Tablet
Participants received a single oral dose of three 100 mg niraparib capsules in a fasted state in Period 1, followed by a wash-out period of 14 days. In Period 2, participants received a single oral dose of 300 mg niraparib tablet in a fasted state followed by a 7-day wash-out period. After the last dose of niraparib, participants who did not enter the Extension Phase were followed for up to 30 days (safety f/u) while participants eligible for Extension Phase proceeded for Extension Phase screening. Eligible participants then entered the Extension Phase, where they received 300 mg or 200 mg niraparib tablets or capsules for once daily dosing depending on their body weight and platelet count.
83
Stage 3: Niraparib Tablet Fasted/Fed
Participants received a single oral dose of 300 mg niraparib tablet in a fasted state in Period 1, followed by a wash-out period of 14 days. In period 2, participants received a single oral dose of 300 mg niraparib tablet in a fed state with a high fat meal followed by a 7-day wash-out period. After the last dose of niraparib, participants who did not enter the Extension Phase were followed for up to 30 days (safety f/u) while participants eligible for Extension Phase proceeded for Extension Phase screening. Eligible participants then entered the Extension Phase, where they received 300 mg or 200 mg niraparib tablets or capsules for once daily dosing depending on their body weight and platelet count.
14
Stage 3: Niraparib Tablet Fed/Fasted
Participants received a single oral dose of 300 mg niraparib tablet in a fed state with a high fat meal in Period 1, followed by a wash-out period of 14 days. In period 2, participants received a single oral dose of 300 mg niraparib tablet in a fasted state followed by a 7-day wash-out period. After the last dose of niraparib, participants who did not enter the Extension Phase were followed for up to 30 days (safety f/u) while participants eligible for Extension Phase proceeded for Extension Phase screening. Eligible participants then entered the Extension Phase, where they received 300 mg or 200 mg niraparib tablets or capsules for once daily dosing depending on their body weight and platelet count.
14
Total225

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007
Extension Phase(Approx 5 Years 5 Months)Death000000153
Extension Phase(Approx 5 Years 5 Months)Lost to Follow-up00000040
Extension Phase(Approx 5 Years 5 Months)Other reasons0000003013
Extension Phase(Approx 5 Years 5 Months)Withdrawal by Subject0000002214
Stage 2: PK Phase-Period 1 (Day 1)Randomized, but did not receive treatment00560000
Stage 2: PK Phase-W1 (Up to Day 14)Adverse Event00520000
Stage 2: PK Phase-W1 (Up to Day 14)Death00120000
Stage 2: PK Phase-W1 (Up to Day 14)Deemed unevaluable00010000
Stage 2: PK Phase-W1 (Up to Day 14)Disease progression per Investigator Decision00330000
Stage 2: PK Phase-W1 (Up to Day 14)Participant admitted to emergency room for elevated serum creatinine00100000
Stage 2: PK Phase-W1 (Up to Day 14)Participant had incorrectly overdosed and removed from PK phase00100000
Stage 2: PK Phase-W1 (Up to Day 14)Participant non-compliance00100000
Stage 2: PK Phase-W1 (Up to Day 14)Participant unable to complete due to Tornado in site area00100000
Stage 2: PK Phase-W1 (Up to Day 14)Protocol Violation00100000
Stage 2: PK Phase-W1 (Up to Day 14)Sponsor and Investigator decision00010000
Stage 2: PK Phase-W1 (Up to Day 14)Sponsor discontinued the participant00010000
Stage 2: PK Phase-W1 (Up to Day 14)Vomiting within protocol-specified hours of dose administration00220000
Stage2:PK Phase W2 (Up to Day 7)Adverse Event00020000
Stage2:PK Phase W2 (Up to Day 7)Deemed unevaluable00110000
Stage2:PK Phase W2 (Up to Day 7)Disease progression per Investigator Decision00200000
Stage2:PK Phase W2 (Up to Day 7)Participant forgot appointment00010000
Stage2:PK Phase W2 (Up to Day 7)Participant had paracentesis00010000
Stage2:PK Phase W2 (Up to Day 7)Participant missed PK sampling in Period 1 Day 800100000
Stage2:PK Phase W2 (Up to Day 7)Participant was not in fasted state and therefore was outside of protocol compliance00100000
Stage 3: PK Phase- Period 1 (Day 1)Adverse Event00000100
Stage 3: PK Phase- Period 1 (Day 1)Clinical progression00001000
Stage 3: PK Phase- Period 1 (Day 1)Progressive Disease00001000
Stage 3: PK Phase- Period 1 (Day 1)Withdrawal by Subject00001100
Stage 3: PK Phase- Period 2 (Day 15)Vomiting within protocol-specified hours of dose administration00001100

Baseline characteristics

CharacteristicTotalStage 1: Niraparib Tablet/CapsuleStage 1: Niraparib Capsule/TabletStage 2: Niraparib Tablet/CapsuleStage 2: Niraparib Capsule/TabletStage 3: Niraparib Tablet Fasted/FedStage 3: Niraparib Tablet Fed/Fasted
Age, Customized
<18 to <65 years
108 Participants5 Participants7 Participants43 Participants38 Participants6 Participants9 Participants
Age, Customized
>=65 to <75 years
80 Participants9 Participants4 Participants27 Participants32 Participants7 Participants1 Participants
Age, Customized
>=75 years
37 Participants1 Participants3 Participants15 Participants13 Participants1 Participants4 Participants
Race/Ethnicity, Customized
African American
28 Participants1 Participants0 Participants11 Participants11 Participants5 Participants0 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
2 Participants0 Participants0 Participants2 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
8 Participants0 Participants0 Participants5 Participants3 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Unknown
16 Participants0 Participants0 Participants4 Participants7 Participants1 Participants4 Participants
Race/Ethnicity, Customized
White
171 Participants14 Participants14 Participants63 Participants62 Participants8 Participants10 Participants
Sex: Female, Male
Female
125 Participants9 Participants9 Participants48 Participants48 Participants5 Participants6 Participants
Sex: Female, Male
Male
100 Participants6 Participants5 Participants37 Participants35 Participants9 Participants8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
deaths
Total, all-cause mortality
0 / 290 / 292 / 1565 / 1522 / 260 / 2515 / 1243 / 66
other
Total, other adverse events
2 / 297 / 2949 / 15637 / 1526 / 265 / 25113 / 12464 / 66
serious
Total, serious adverse events
0 / 290 / 2910 / 15610 / 1524 / 262 / 2540 / 12420 / 66

Outcome results

Primary

Apparent Terminal Volume of Distribution (Vz/F) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Vz/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BA Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletApparent Terminal Volume of Distribution (Vz/F) for Niraparib-Stage 1 PK Phase1260 LitersGeometric Coefficient of Variation 45.4
Stage 1: Niraparib CapsuleApparent Terminal Volume of Distribution (Vz/F) for Niraparib-Stage 1 PK Phase1100 LitersGeometric Coefficient of Variation 43.1
Primary

Apparent Total Body Clearance (CL/F) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of CL/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BA Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletApparent Total Body Clearance (CL/F) for Niraparib-Stage 1 PK Phase18.5 Liters per hourGeometric Coefficient of Variation 44.5
Stage 1: Niraparib CapsuleApparent Total Body Clearance (CL/F) for Niraparib-Stage 1 PK Phase17.4 Liters per hourGeometric Coefficient of Variation 41.8
Primary

Area Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC[0 to Inf]) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0 to inf). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BA Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletArea Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC[0 to Inf]) for Niraparib-Stage 1 PK Phase16200 Hours*nanogram per milliliterGeometric Coefficient of Variation 44.5
Stage 1: Niraparib CapsuleArea Under the Concentration-time Curve From Time 0 Extrapolated to Infinity (AUC[0 to Inf]) for Niraparib-Stage 1 PK Phase17200 Hours*nanogram per milliliterGeometric Coefficient of Variation 41.8
90% CI: [0.8631, 0.9841]
Primary

Area Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC[0-t]) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0-t). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: Bioavailability (BA) Evaluable Population included all participants who completed both PK Periods and had sufficient PK sample collection to accurately estimate PK parameters, without significant niraparib carryover (Baseline concentration \>5 percent (%) of maximum observed plasma concentration \[Cmax\]), in both Periods.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletArea Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC[0-t]) for Niraparib-Stage 1 PK Phase14900 Hours*nanogram per milliliterGeometric Coefficient of Variation 43
Stage 1: Niraparib CapsuleArea Under the Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC[0-t]) for Niraparib-Stage 1 PK Phase16100 Hours*nanogram per milliliterGeometric Coefficient of Variation 41.3
90% CI: [0.855, 0.9706]
Primary

AUC(0-t) for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0-t). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: Bioequivalence (BE) Evaluable Population included all participants who completed both the Study Drug and Washout/PK and had sufficient PK sample collection to accurately estimate PK parameters, without significant niraparib carryover and without events or protocol deviations deemed affect PK, in both Periods. Only those participants with estimable PK parameter data in both periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletAUC(0-t) for Niraparib-Stage 2 PK Phase17070 Hours*nanogram per milliliterGeometric Coefficient of Variation 57.1
Stage 1: Niraparib CapsuleAUC(0-t) for Niraparib-Stage 2 PK Phase17730 Hours*nanogram per milliliterGeometric Coefficient of Variation 54.1
90% CI: [0.9199, 1.0006]
Primary

AUC(0-t) for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0-t). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: Food Effect (FE) Evaluable Population included all participants who completed both PK periods and had sufficient PK sample collection to accurately estimate PK parameters in both periods. Participants meeting non-evaluability criteria or having significant niraparib carryover (Baseline concentration \>5% of Cmax) were completely excluded from the FE Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletAUC(0-t) for Niraparib-Stage 3 PK Phase20100 Hours*nanogram per milliliterGeometric Coefficient of Variation 63.9
Stage 1: Niraparib CapsuleAUC(0-t) for Niraparib-Stage 3 PK Phase25990 Hours*nanogram per milliliterGeometric Coefficient of Variation 52.4
90% CI: [1.1742, 1.4735]
Primary

AUC(0 to Inf) for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0 to inf). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BE Evaluable Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletAUC(0 to Inf) for Niraparib-Stage 2 PK Phase17760 Hours*nanogram per milliliterGeometric Coefficient of Variation 55.3
Stage 1: Niraparib CapsuleAUC(0 to Inf) for Niraparib-Stage 2 PK Phase18470 Hours*nanogram per milliliterGeometric Coefficient of Variation 53.5
90% CI: [0.9164, 0.9986]
Primary

AUC(0 to Inf) for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of AUC(0 to inf). Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletAUC(0 to Inf) for Niraparib-Stage 3 PK Phase23600 Hours*nanogram per milliliterGeometric Coefficient of Variation 78.5
Stage 1: Niraparib CapsuleAUC(0 to Inf) for Niraparib-Stage 3 PK Phase29770 Hours*nanogram per milliliterGeometric Coefficient of Variation 65.2
90% CI: [1.1537, 1.4137]
Primary

CL/F for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of CL/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BE Evaluable Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletCL/F for Niraparib-Stage 2 PK Phase16.89 Liters per hourGeometric Coefficient of Variation 55.3
Stage 1: Niraparib CapsuleCL/F for Niraparib-Stage 2 PK Phase16.25 Liters per hourGeometric Coefficient of Variation 53.5
Primary

CL/F for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of CL/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletCL/F for Niraparib-Stage 3 PK Phase12.71 Liters per hourGeometric Coefficient of Variation 78.5
Stage 1: Niraparib CapsuleCL/F for Niraparib-Stage 3 PK Phase10.08 Liters per hourGeometric Coefficient of Variation 65.2
Primary

Cmax for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Cmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BE Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletCmax for Niraparib-Stage 2 PK Phase519.5 Nanograms per milliliterGeometric Coefficient of Variation 49.5
Stage 1: Niraparib CapsuleCmax for Niraparib-Stage 2 PK Phase538.4 Nanograms per milliliterGeometric Coefficient of Variation 49.4
90% CI: [0.9124, 1.014]
Primary

Cmax for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Cmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletCmax for Niraparib-Stage 3 PK Phase704.1 Nanograms per milliliterGeometric Coefficient of Variation 57
Stage 1: Niraparib CapsuleCmax for Niraparib-Stage 3 PK Phase774.6 Nanograms per milliliterGeometric Coefficient of Variation 47.2
90% CI: [0.9408, 1.3164]
Primary

Maximum Observed Plasma Concentration (Cmax) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Cmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BA Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletMaximum Observed Plasma Concentration (Cmax) for Niraparib-Stage 1 PK Phase451 Nanograms per milliliterGeometric Coefficient of Variation 47.8
Stage 1: Niraparib CapsuleMaximum Observed Plasma Concentration (Cmax) for Niraparib-Stage 1 PK Phase467 Nanograms per milliliterGeometric Coefficient of Variation 50
90% CI: [0.8489, 1.0593]
Primary

T1/2 for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of T1/2. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BE Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletT1/2 for Niraparib-Stage 2 PK Phase47.94 HoursGeometric Coefficient of Variation 26.4
Stage 1: Niraparib CapsuleT1/2 for Niraparib-Stage 2 PK Phase50.17 HoursGeometric Coefficient of Variation 26.1
Primary

T1/2 for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of T1/2. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletT1/2 for Niraparib-Stage 3 PK Phase46.39 HoursGeometric Coefficient of Variation 20.5
Stage 1: Niraparib CapsuleT1/2 for Niraparib-Stage 3 PK Phase46.08 HoursGeometric Coefficient of Variation 22.4
Primary

Terminal Half-life (T1/2) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of T1/2. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BA Evaluable Population

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletTerminal Half-life (T1/2) for Niraparib-Stage 1 PK Phase47.3 HoursGeometric Coefficient of Variation 22.2
Stage 1: Niraparib CapsuleTerminal Half-life (T1/2) for Niraparib-Stage 1 PK Phase43.8 HoursGeometric Coefficient of Variation 23.1
Primary

Time From Administration of the Dose to the First Quantifiable Concentration (Tlag) for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of tlag. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population.

ArmMeasureValue (MEDIAN)
Stage 1: Niraparib TabletTime From Administration of the Dose to the First Quantifiable Concentration (Tlag) for Niraparib-Stage 3 PK Phase0.00 Hours
Stage 1: Niraparib CapsuleTime From Administration of the Dose to the First Quantifiable Concentration (Tlag) for Niraparib-Stage 3 PK Phase0.00 Hours
Primary

Time to Reach Maximum Observed Plasma Concentration (Tmax) for Niraparib-Stage 1 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Tmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BA Evaluable Population

ArmMeasureValue (MEDIAN)
Stage 1: Niraparib TabletTime to Reach Maximum Observed Plasma Concentration (Tmax) for Niraparib-Stage 1 PK Phase4.05 Hours
Stage 1: Niraparib CapsuleTime to Reach Maximum Observed Plasma Concentration (Tmax) for Niraparib-Stage 1 PK Phase4.00 Hours
Primary

Tmax for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Tmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BE Evaluable Population

ArmMeasureValue (MEDIAN)
Stage 1: Niraparib TabletTmax for Niraparib-Stage 2 PK Phase5.00 Hours
Stage 1: Niraparib CapsuleTmax for Niraparib-Stage 2 PK Phase4.97 Hours
Primary

Tmax for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Tmax. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population.

ArmMeasureValue (MEDIAN)
Stage 1: Niraparib TabletTmax for Niraparib-Stage 3 PK Phase4.88 Hours
Stage 1: Niraparib CapsuleTmax for Niraparib-Stage 3 PK Phase5.97 Hours
Primary

Vz/F for Niraparib-Stage 2 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Vz/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: BE Evaluable Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletVz/F for Niraparib-Stage 2 PK Phase1128 LitersGeometric Coefficient of Variation 51.1
Stage 1: Niraparib CapsuleVz/F for Niraparib-Stage 2 PK Phase1128 LitersGeometric Coefficient of Variation 50.9
Primary

Vz/F for Niraparib-Stage 3 PK Phase

Blood samples were collected at indicated time points for pharmacokinetic assessment of Vz/F. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Pre-dose, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 12, 24, 48, 72, 96, 120 and 168 hours post-dose in each treatment period

Population: FE Evaluable Population. Only those participants with estimable PK parameter data available in both Periods were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Stage 1: Niraparib TabletVz/F for Niraparib-Stage 3 PK Phase833.8 LitersGeometric Coefficient of Variation 83.5
Stage 1: Niraparib CapsuleVz/F for Niraparib-Stage 3 PK Phase651.4 LitersGeometric Coefficient of Variation 54.3
Secondary

Number of Participants With TEAEs and Serious TEAEs - Extension Phase

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. A summary of number of participants with any TEAEs and serious TEAEs is presented. Serious TEAEs are subset of TEAEs. TEAEs were coded using the Medical Dictionary for Regulatory Affairs (MedDRA dictionary).

Time frame: Up to approximately 5 years 5 months

Population: Safety Population comprised of all participants who received any amount of niraparib in the Open-Label Extension Phase of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs and Serious TEAEs - Extension PhaseTEAEs120 Participants
Stage 1: Niraparib TabletNumber of Participants With TEAEs and Serious TEAEs - Extension PhaseSerious TEAEs40 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs and Serious TEAEs - Extension PhaseTEAEs65 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs and Serious TEAEs - Extension PhaseSerious TEAEs20 Participants
Secondary

Number of Participants With TEAEs and Serious TEAEs-Stage 2 PK Phase (Periods 1 and 2 Only)

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.

Time frame: Up to 24 days

Population: Safety Population comprised of all participants who received any amount of niraparib during the Stage 2 PK Phase of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs and Serious TEAEs-Stage 2 PK Phase (Periods 1 and 2 Only)TEAE86 Participants
Stage 1: Niraparib TabletNumber of Participants With TEAEs and Serious TEAEs-Stage 2 PK Phase (Periods 1 and 2 Only)Serious TEAE10 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs and Serious TEAEs-Stage 2 PK Phase (Periods 1 and 2 Only)TEAE73 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs and Serious TEAEs-Stage 2 PK Phase (Periods 1 and 2 Only)Serious TEAE10 Participants
Secondary

Number of Participants With TEAEs and Serious TEAEs-Stage 3 PK Phase (Periods 1 and 2 Only)

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. TEAEs reported under Niraparib tablets under fasted and fed arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet fasted and fed, respectively.

Time frame: Up to 45 days

Population: Safety Population comprised of all participants who received any amount of niraparib during the Stage 3 PK Phase of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs and Serious TEAEs-Stage 3 PK Phase (Periods 1 and 2 Only)TEAE8 Participants
Stage 1: Niraparib TabletNumber of Participants With TEAEs and Serious TEAEs-Stage 3 PK Phase (Periods 1 and 2 Only)Serious TEAE4 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs and Serious TEAEs-Stage 3 PK Phase (Periods 1 and 2 Only)TEAE12 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs and Serious TEAEs-Stage 3 PK Phase (Periods 1 and 2 Only)Serious TEAE2 Participants
Secondary

Number of Participants With TEAEs-leading to Discontinuation - Extension Phase

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. A summary of number of participants who discontinued due to any TEAEs is presented. TEAEs were coded using the Medical Dictionary for Regulatory Affairs (MedDRA dictionary).

Time frame: Up to approximately 5 years 5 months

Population: Safety Population comprised of all participants who received any amount of niraparib in the Open-Label Extension Phase of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs-leading to Discontinuation - Extension Phase8 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs-leading to Discontinuation - Extension Phase9 Participants
Secondary

Number of Participants With TEAEs Leading to Discontinuation -Stage 1 PK Phase (Periods 1 and 2 Only)

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. Number of participants with TEAEs leading to discontinuation is reported. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.

Time frame: Up to 16 days

Population: Safety Population comprised of all participants who received any amount of niraparib during the Stage 1 PK Phase of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs Leading to Discontinuation -Stage 1 PK Phase (Periods 1 and 2 Only)0 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs Leading to Discontinuation -Stage 1 PK Phase (Periods 1 and 2 Only)0 Participants
Secondary

Number of Participants With TEAEs-leading to Discontinuation Stage 2 PK Phase (Periods 1 and 2 Only)

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. Number of participants with TEAEs leading to discontinuation is reported. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.

Time frame: Up to 24 days

Population: Safety Population comprised of all participants who received any amount of niraparib during the Stage 2 PK Phase of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs-leading to Discontinuation Stage 2 PK Phase (Periods 1 and 2 Only)2 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs-leading to Discontinuation Stage 2 PK Phase (Periods 1 and 2 Only)2 Participants
Secondary

Number of Participants With TEAEs-leading to Discontinuation Stage 3 PK Phase (Periods 1 and 2 Only)

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. Number of participants with TEAEs leading to discontinuation is reported. TEAEs reported under Niraparib tablets under fasted and fed arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet fasted and fed, respectively.

Time frame: Up to 45 days

Population: Safety Population comprised of all participants who received any amount of niraparib during the Stage 3 PK Phase of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With TEAEs-leading to Discontinuation Stage 3 PK Phase (Periods 1 and 2 Only)1 Participants
Stage 1: Niraparib CapsuleNumber of Participants With TEAEs-leading to Discontinuation Stage 3 PK Phase (Periods 1 and 2 Only)1 Participants
Secondary

Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs-Stage 1 PK Phase (Periods 1 and 2 Only)

An adverse event is any untoward medical occurrence in a clinical investigation participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. A serious adverse event (SAE) is any untoward medical occurrence that, at any dose; results in death; is life threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or is an important medical event. TEAE is any event that was not present prior to the initiation of study treatment or any event already present that worsens in either intensity or frequency following exposure to study treatment. TEAEs reported under Niraparib tablet and Niraparib capsule arms include TEAEs with onset date during the corresponding period (Period 1 or Period 2) in which the participant received niraparib tablet and capsule, respectively.

Time frame: Up to 16 days

Population: Safety Population comprised of all participants who received any amount of niraparib during the Stage 1 PK Phase of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Stage 1: Niraparib TabletNumber of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs-Stage 1 PK Phase (Periods 1 and 2 Only)TEAE9 Participants
Stage 1: Niraparib TabletNumber of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs-Stage 1 PK Phase (Periods 1 and 2 Only)Serious TEAE0 Participants
Stage 1: Niraparib CapsuleNumber of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs-Stage 1 PK Phase (Periods 1 and 2 Only)TEAE12 Participants
Stage 1: Niraparib CapsuleNumber of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious TEAEs-Stage 1 PK Phase (Periods 1 and 2 Only)Serious TEAE0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026