Rucaparib

1 INDICATIONS AND USAGE RUBRACA is a poly (ADP-ribose) polymerase (PARP) inhibitor indicated: Ovarian cancer for the maintenance treatment of adult patients with a deleterious BRCA mutation (germline and/or somatic)-associated recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. ( 1.1 ) Prostate cancer for the treatment of adult patients with a deleterious BRCA mutation (germline and/or somatic)-associated metastatic castration-resistant prostate cancer (mCRPC) who have been treated with androgen receptor-directed therapy. Select patients for therapy based on an FDA-approved companion diagnostic for RUBRACA. ( 1.2 , 2.1 ) 1.1 Maintenance Treatment of BRCA -mutated Recurrent Ovarian Cancer RUBRACA is indicated for the maintenance treatment of adult patients with a deleterious BRCA mutation (germline and/or somatic)-associated recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. 1.2 BRCA -mutated Metastatic Castration-Resistant Prostate Cancer RUBRACA is indicated for the treatment of adult patients with a deleterious BRCA mutation (germline and/or somatic)-associated metastatic castration-resistant prostate cancer (mCRPC) who have been treated with androgen receptor-directed therapy. Select patients for therapy based on an FDA-approved companion diagnostic for RUBRACA [see Dosage and Administration ( 2.1 )].

2 DOSAGE AND ADMINISTRATION Recommended dose is 600 mg orally twice daily with or without food. ( 2.2 ) Continue treatment until disease progression or unacceptable toxicity. ( 2.2 ) For adverse reactions, consider interruption of treatment or dose reduction. ( 2.3 ) Patients receiving RUBRACA for mCRPC should also receive a gonadotropin-releasing hormone (GnRH) analog concurrently or should have had bilateral orchiectomy. ( 2.2 ) 2.1 Patient Selection Maintenance Treatment of BRCA -mutated Recurrent Ovarian Cancer Select patients for the maintenance treatment of recurrent ovarian cancer with RUBRACA based on the presence of a deleterious BRCA mutation (germline and/or somatic) [see Clinical Studies ( 14.1 )]. An FDA-approved test for the detection of deleterious germline and/or somatic BRCA mutations is not currently available. Treatment of BRCA -mutated mCRPC after Androgen Receptor-directed Therapy Select patients for the treatment of mCRPC with RUBRACA based on the presence of a deleterious BRCA mutation (germline and/or somatic) in plasma specimens [see Clinical Studies ( 14.2 )]. A negative result from a plasma specimen does not mean that the patient’s tumor is negative for BRCA mutations. Should the plasma specimen have a negative result, consider performing further genomic testing using tumor specimens as clinically indicated. Information on the FDA-approved tests for the detection of a BRCA mutation in patients with ovarian cancer or with prostate cancer is available at: http://www.fda.gov/CompanionDiagnostics. 2.2 Recommended Dose The recommended dose of Rubraca is 600 mg (two 300 mg tablets) taken orally twice daily with or without food, for a total daily dose of 1,200 mg. ( 2.2 ) Continue treatment until disease progression or unacceptable toxicity. ( 2.2 ) For adverse reactions, consider interruption of treatment or dose reduction. ( 2.3 ) Patients receiving RUBRACA for mCRPC should also receive a gonadotropin-releasing hormone (GnRH) analog concurrently or should have had bilateral orchiectomy. ( 2.2 ) 2.3 Dose Modifications for Adverse Reactions To manage adverse reactions, consider interruption of treatment or dose reduction. Recommended Rubraca dose modifications for adverse reactions are indicated in Table 1 . Table 1. Recommended Dose Modifications for Adverse Reactions Dose Reduction Dose Starting Dose 600 mg twice daily (two 300 mg tablets) First Dose Reduction 500 mg twice daily (two 250 mg tablets) Second Dose Reduction 400 mg twice daily (two 200 mg tablets) Third Dose Reduction 300 mg twice daily (one 300 mg tablet)

6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the labeling: Myelodysplastic Syndrome/Acute Myeloid Leukemia [see Warnings and Precautions ( 5.1 )]. Most common adverse reactions (≥10%) among patients with ovarian cancer were nausea, fatigue (including asthenia), anemia, ALT/AST increased, vomiting, diarrhea, decreased appetite, thrombocytopenia, dysgeusia, neutropenia, blood creatinine increased, dyspnea, dizziness, dyspepsia, photosensitivity reaction, and leukopenia. ( 6.1 ) Most common adverse reactions (≥10%) among patients with BRCA -mutated mCRPC were fatigue/asthenia, musculoskeletal pain, nausea, anemia, decreased appetite, increased ALT/AST, constipation, diarrhea, vomiting, thrombocytopenia, dyspnea, increased blood creatinine, edema, dizziness, weight decreased, abdominal pain, dysgeusia, rash, neuropathy peripheral, urinary tract infection, cough, headache, hemorrhage, neutropenia, and photosensitivity reaction. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact pharmaand agent at 1-800-506-8501 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The pooled safety population for patients with ovarian and prostate cancer in the WARNINGS AND PRECAUTIONS section reflect exposure to RUBRACA at 600 mg orally twice daily in 2141 patients treated on clinical trials including ARIEL3, TRITON2, and TRITON3. In ARIEL3 among the patients who received RUBRACA, 57% of patients were exposed for 6 months or longer and 33% were exposed for greater than one year. In TRITON3 among the patients with BRCA-mutated mCRPC who received RUBRACA, 66% were exposed for 6 months or longer and 34% were exposed for greater than one year. In the pooled safety population for patients with ovarian cancer, the most common adverse reactions in ≥ 10% of patients were nausea (68%), asthenia/fatigue (65%), anemia/hemoglobin decreased (45%), AST/ALT increased (39%), vomiting (36%), diarrhea (29%), decreased appetite (27%), thrombocytopenia/platelet count decreased (25%), dysgeusia (24%), neutropenia/neutrophil count decreased (21%), blood creatinine increased (17%), dyspnea (16%), dizziness (14%), dyspepsia (11%), photosensitivity reaction (10%), and leukopenia/white blood cell count decreased (10%). In the pooled safety population for patients with BRCA -mutated mCRPC (N=373) from TRITON2 and TRITON3, the most common adverse reactions in ≥ 10% of patients were fatigue/asthenia (61%), musculoskeletal pain (52%), nausea (52%), anemia/decreased hemoglobin (49%), decreased appetite (35%), increased ALT/AST (31%), constipation (30%), diarrhea (27%), vomiting (26%), thrombocytopenia/decreased platelet count (21%), dyspnea (20%), increased blood creatinine (19%), edema (19%), dizziness (19%), weight decreased (16%), abdominal pain (15%), dysgeusia (15%), rash (13%), neuropathy peripheral (13%), urinary tract infection (13%), cough (12%), headache (12%), hemorrhage (12%), neutropenia/decreased neutrophil count (12%), and photosensitivity reaction (10%). Maintenance Treatment of BRCA -mutated Recurrent Ovarian Cancer The safety of RUBRACA for the maintenance treatment of patients with BRCA -mutated recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer was investigated in ARIEL3, a randomized (2:1), double-blind, placebo-controlled study in which 195 patients with a deleterious BRC A mutation received either RUBRACA 600 mg orally twice daily (n=129) or placebo (n=66) until disease progression or unacceptable toxicity. The median duration of study treatment was 13.6 months (range: < 1 month to 39 months) for patients who received RUBRACA and 5.5 months for patients who received placebo. Dose interruptions due to an adverse reaction of any grade occurred in 67% of patients receiving RUBRACA and 14% of those receiving placebo; dose reductions due to an adverse reaction occurred in 57% of RUBRACA patients and 6% of placebo patients. The most frequent adverse reactions leading to dose interruption or dose reduction of RUBRACA were thrombocytopenia (25%), anemia (19%), ALT/AST increased (16%), fatigue/asthenia (14%), and nausea (10%). Discontinuation due to adverse reactions occurred in 15% of RUBRACA patients and 5% of placebo patients. Specific adverse reactions that most frequently led to discontinuation in patients treated with RUBRACA were thrombocytopenia (4%), nausea (3%), and anemia (2%). Table 2 describes the adverse reactions occurring in ≥20% of patients; while Table 3 describes the laboratory abnormalities occurring in ≥25% of patients occurring in ARIEL3. Table 2. Adverse Reactions in ≥ 20% of Patients with BRCA-mutated Ovarian Cancer in ARIEL3 a National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE version 4.03) b Consists of grouped related terms that reflect the medical concept of the adverse reaction Adverse reactions RUBRACA N=129 Placebo N=66 Grades 1-4 a % Grades 3-4 % Grades 1-4 a % Grades 3-4 % Gastrointestinal Disorders Nausea 79 2 29 0 Abdominal pain/distention b 48 3 49 2 Constipation 39 4 36 2 Vomiting 37 4 14 0 Diarrhea 34 2 18 0 Stomatitis b 28 0.8 12 0 General Disorders and Administration Site Conditions Fatigue/asthenia 74 9 52 5 Skin and Subcutaneous Tissue Disorders Rash b 45 0 23 0 Nervous System Disorders Dysgeusia 33 0 6 0 Headache 22 0 15 2 Investigations ALT/AST elevation 33 16 3 0 Blood and Lymphatic System Disorders Anemia 41 26 6 0 Thrombocytopenia 35 6 3 0 Neutropenia 22 8 6 0 Respiratory, Thoracic, and Mediastinal Disorders Nasopharyngitis/Upper respiratory tract infection b 29 0 20 2 Metabolism and Nutrition Disorders Decreased appetite 23 2 14 0 Adverse reactions occurring < 20% of patients treated with RUBRACA include insomnia (19%), dyspnea (17%), dizziness (15%), pyrexia (15%), dyspepsia (12%), peripheral edema (12%), and depression (11%). Table 3. Laboratory Abnormalities in ≥ 25% of Patients with BRCA-mutated Ovarian Cancer in ARIEL3 a Patients were allowed to enter clinical studies with laboratory values of CTCAE Grade 1. b NCI CTCAE version 4.03. Laboratory Parameter a RUBRACA N=129 Placebo N=66 Grades 1-4 b % Grades 3-4 % Grades 1-4 b % Grades 3-4 % Chemistry Increase in creatinine 96 0 89 0 Increase in ALT 67 11 6 0 Increase in AST 59 1 6 0 Increase in cholesterol 39 3 20 0 Increase in Alkaline Phosphatase 39 0 3 0 Hematology Decrease in hemoglobin 61 18 14 2 Decrease in platelets 47 2 8 0 Decrease in leukocytes 39 3 23 0 Decrease in neutrophils 38 6 18 2 Decrease in lymphocytes 33 7 14 2 Treatment of BRCA-mutated mCRPC after Androgen Receptor-directed Therapy TRITON3 The safety of RUBRACA monotherapy was evaluated in patients with BRCA-mutated mCRPC who had progressed following prior treatment with androgen receptor-directed therapy and who had not received treatment with taxane-based chemotherapy in the castration-resistant setting. [see Clinical Studies ( 14.2 )]. TRITON3 was a randomized, open-label, multi-center study, in which 298 patients with a deleterious BRCA mutation received either RUBRACA 600 mg twice daily (n=201) or physicians choice (n=97) of abiraterone acetate or enzalutamide, or docetaxel until disease progression, unacceptable toxicity, or up to 10 cycles for docetaxel. Among the patients who received RUBRACA, 66% were exposed for 6 months or longer and 34% were exposed for greater than one year. Serious adverse reactions occurred in 27% of patients receiving RUBRACA. Serious adverse reactions in ≥2% of patients included anemia (4%), pneumonia (4%), urinary tract infection (3%), acute kidney injury (3%), myocardial ischemia/infarction (2%), and pulmonary embolism (2%). Fatal adverse reactions occurred in 1.5% of patients treated with RUBRACA, including cardiac failure, myocardial ischemia, and sepsis (1 patient each). Permanent discontinuation due to adverse reactions occurred in 14% of patients treated with RUBRACA. Adverse reactions which resulted in permanent discontinuation of RUBRACA in ≥2% of patients included anemia (6%), fatigue/asthenia (3%), thrombocytopenia/platelet count decreased (3%), and nausea (2%). Dosage interruptions of RUBRACA due to adverse reactions occurred in 53% of patients. Adverse reactions which required dosage interruption in ≥5% of patients included anemia (24%), fatigue/asthenia (10%), nausea (8%), and increase in ALT (5%). Dose reductions of RUBRACA due to an adverse reaction occurred in 36% of patients. Adverse reactions which required dose reduction in ≥5% of patients included anemia (16%) and fatigue/asthenia (8%). The most common adverse reactions (≥10%) in patients who received RUBRACA were fatigue/asthenia, musculoskeletal pain, nausea, decreased appetite, diarrhea, constipation, vomiting, dyspnea, dysgeusia, edema, abdominal pain, dizziness, weight decreased, rash, headache, peripheral neuropathy, photosensitivity reaction, and urinary tract infection. The most common select laboratory abnormalities (≥25%) that worsened from baseline in patients who received RUBRACA were increased ALT, decreased neutrophils, decreased phosphate, decreased hemoglobin, increased AST, increased creatinine, increased glucose, decreased lymphocytes, decreased sodium, decreased platelets, increased calcium. Tables 4 and 5 summarize the adverse reactions and laboratory abnormalities, respectively, in patients with BRCA- mutated mCRPC in TRITON3. Table 4. Adverse Reactions in ≥ 10% of Patients with BRCA-mutated mCRPC in TRITON3 a National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE version 5.0) b Includes multiple related terms Adverse Reaction RUBRACA N=201 ARPI or Docetaxel N=97 Grades 1-4 a (%) Grades 3-4 (%) Grades 1-4 a (%) Grades 3-4 (%) General disorders and administration site conditions Fatigue/Asthenia 61 7 65 10 Edema b 18 0 20 0 Musculoskeletal and connective tissue disorders Musculoskeletal pain b 53 7 57 8 Gastrointestinal disorders Nausea 51 2 22 1 Diarrhea 31 2 29 1 Constipation 31 2 17 1 Vomiting 25 1 10 1 Abdominal pain b 17 1 10 1 Metabolism and nutrition disorders Decreased appetite 34 1 20 2 Respiratory, thoracic and mediastinal disorders Dyspnea b 19 1 13 1 Nervous system disorders Dysgeusia b 18 0 12 0 Dizziness b 16 1 9 0 Headache b 12 0 9 0 Peripheral neuropathy b 12 1 26 1 Investigations Weight decreased 16 1 13 0 Skin and subcutaneous tissue disorders Rash b 13 1 6 0 Photosensitivity reaction b 12 1 0 0 Infections and infestations Urinary tract infection b 10 3 4 1 Clinically relevant adverse reactions occurring in <10% of patients treated with RUBRACA include cough, hemorrhage, fall, hypertension, dyspepsia, pruritus, pyrexia, stomatitis, venous thromboembolism, arrhythmia, hypersensitivity, and febrile neutropenia. Table 5. Laboratory Abnormalities in ≥ 25% of Patients with BRCA-mutated mCRPC in TRITON3 a Denominator for each laboratory parameter is based on the number of patients with a baseline and post-treatment laboratory value available for 192 to 201 patients in the RUBRACA Arm and 94 to 97 patients in the ARPI or Docetaxel Arm. b NCI CTCAE version 5.0; decrease in phosphate is graded using NCI CTACE Version 4.03 Laboratory Parameter Rubraca N=201 a ARPI or Docetaxel N=97 a Grades 1-4 b (%) Grades 3-4 (%) Grades 1-4 b (%) Grades 3-4 (%) Chemistry Increase in ALT 68 4 8 0 Decrease in phosphate 64 8 45 5 Increase in AST 59 2 7 0 Increase in creatinine 56 1 16 0 Increase in glucose 45 6 38 3 Decrease in sodium 35 5 21 4 Increase in calcium 29 3 19 2 Hematology Decrease in neutrophils 67 9 24 10 Decrease in hemoglobin 60 23 31 2 Decrease in lymphocytes 43 14 45 17 Decrease in platelets 34 6 4 0 TRITON2 The safety of RUBRACA 600 mg twice daily was evaluated in a single arm trial (TRITON2) [see Clinical Studies (14.2)]. TRITON2 enrolled 209 patients with HRR-mutated mCRPC, including 115 with BRCA-mutated mCRPC. Among the patients with BRCA -mutated mCRPC, the median duration of RUBRACA treatment was 6.5 months (range 0.5 to 26.7). Fatal adverse reactions occurred in 1.7% of patients who received RUBRACA, including acute respiratory distress syndrome and pneumonia (1 patient each). Permanent discontinuation of RUBRACA due to an adverse reaction occurred in 8% of patients. Dosage interruption of RUBRACA due to an adverse reaction occurred in 57% of patients. Dose reductions of RUBRACA occurred in 41% of patients. Tables 6 and 7 summarize the adverse reactions and laboratory abnormalities, respectively, in patients with BRCA -mutated mCRPC in TRITON2. Table 6. Adverse Reactions in ≥ 20% of Patients with BRCA-mutated mCRPC in TRITON2 a NCI CTCAE version 4.03. b Includes platelet count decreased c Includes blister, blood blister, dermatitis, dermatitis contact, eczema, genital rash, palmar-plantar erythrodysaesthesia syndrome, photosensitivity reaction, psoriasis, rash, rash maculo-papular, rash pruritic, skin exfoliation, skin lesion, urticaria Adverse Reaction Rubraca N = 115 Grades 1-4 a (%) Grades 3-4 (%) General disorders and administration site conditions Asthenia/Fatigue 62 9 Gastrointestinal disorders Nausea 52 3 Constipation 27 1 Vomiting 22 1 Diarrhea 20 0 Blood and lymphatic system disorders Anemia 43 25 Thrombocytopenia b 25 10 Metabolism and nutrition disorders Decreased appetite 28 2 Skin and subcutaneous tissue disorders Rash c 27 2 Other clinically relevant adverse reactions that occurred in less than 20% of patients included dyspnea, dizziness, bleeding, urinary tract infection, dysgeusia, dyspepsia, hypersensitivity (including flushing, asthma, choking sensation, periorbital swelling, swelling face, and wheezing), pneumonia, sepsis, ischemic cardiovascular events, renal failure, venous thromboembolism, and stomatitis. Table 7. Laboratory Abnormalities in ≥ 35% (Grades 1-4) and ≥ 2% (Grades 3-4) Worsening from Baseline in Patients with BRCA-mutated mCRPC in TRITON2 a Denominator for each laboratory parameter is based on the number of patients with a baseline and post-treatment laboratory value available for 111 to 115 patients. b NCI CTCAE version 5.0; decrease in phosphate is graded using NCI CTACE Version 4.03 c Grade 3-4 ALT or AST elevation led to drug interruption in 4 patients, of which 1 had dose reduction upon rechallenge. Laboratory Parameter Rubraca N = 115 a Grades 1-4 b (%) Grades 3-4 (%) Clinical Chemistry Increase in ALT c 69 5 Decrease in phosphate 68 15 Increase in alkaline phosphatase 44 2 Increase in creatinine 43 2 Increase in triglycerides 42 5 Decrease in sodium 38 3 Hematologic Decrease in leukocytes 69 5 Decrease in absolute neutrophil count 62 5

12.3 Pharmacokinetics The AUC and C max of rucaparib demonstrated linear pharmacokinetics over a dose range from 240 mg to 840 mg twice daily (0.4 times to 1.4 times the approved recommended dosage). The mean (coefficient of variation [CV]) steady-state rucaparib C max is 1,940 ng/mL (54%) and AUC 0-12h is 16,900 h×ng/mL (54%) at the approved recommended dosage. The mean AUC accumulation ratio is 3.5 to 6.2 fold. Absorption The median T max (min, max) at the steady state is 1.9 hours (0, 5.98) at the approved recommended dosage. The mean (min, max) absolute bioavailability is 36% (30%, 45%). Effect of Food Following a high-fat meal (approximately 800-1000 calories, including approximately 250 calories from carbohydrates, approximately 500-600 calories from fat, approximately 150 calories from protein), the C max was increased by 20%, AUC 0-24h was increased by 38%, and the T max was delayed by 2.5 hours, as compared to fasted conditions [see Dosage and Administration ( 2.2 )] . Distribution The mean apparent volume of distribution is 2300 L (21%). Rucaparib is 70% bound to human plasma proteins in vitro. Rucaparib preferentially distributed to red blood cells with a blood-to-plasma concentration ratio of 1.8. Elimination The mean apparent total clearance at steady state is 44.2 L/h (45%) and the mean terminal elimination half-life is 26 (39%) hours. Metabolism In vitro, rucaparib is primarily metabolized by CYP2D6 and to a lesser extent by CYP1A2 and CYP3A4. In addition to CYP-based oxidation, rucaparib also undergoes N-demethylation, N-methylation, and glucuronidation. Excretion Following a single oral dose of radiolabeled rucaparib, unchanged rucaparib accounted for 64% of the radioactivity. Rucaparib accounted for 45% and 95% of radioactivity in urine and feces, respectively. Specific Populations Age (20 to 86 years), race (White, Black, and Asian), sex, body weight (41 to 171 kg), mild to moderate renal impairment (CLcr ≥ 30 mL/min), mild hepatic impairment (total bilirubin < ULN and AST > ULN or total bilirubin 1 to 1.5 x ULN and any AST), and CYP2D6 or CYP1A2 genotype polymorphisms did not have a clinically meaningful effect on the pharmacokinetics of rucaparib. The effect of severe renal impairment (CLcr 15 to 29 mL/min), end-stage renal disease (CLcr < 15 mL/min), or severe hepatic impairment (total bilirubin > 3 x ULN and any AST) has not been studied. Hepatic Impairment Moderate hepatic impairment (total bilirubin > 1.5 to 3 x ULN and any AST) increased rucaparib AUC by 45%, but had no effect on C max compared to patients with normal hepatic function. Drug Interaction Studies Clinical Studies and Model-Informed Approaches Effect of Other Drugs on Rucaparib Concomitant administration of Rubraca with a proton pump inhibitor had no clinically meaningful effect on steady-state concentrations of rucaparib. Effect of Rucaparib on Other Drugs Concomitant administration of Rubraca with rosuvastatin (BCRP substrate) had no clinically meaningful effect on the concentrations of rosuvastatin. Coadministration of Rubraca with the following substrates increased the C max of each coadministered substrate by ≤ 1.1-fold and increased the AUC of each substrate as follows: Caffeine (CYP1A2): by 2.6-fold Midazolam (CYP3A4): by 1.4-fold Warfarin (CYP2C9): by 1.5-fold Omeprazole (CYP2C19): by 1.6-fold Digoxin (P-glycoprotein): by 1.2-fold Concomitant administration of Rubraca with an oral contraceptive containing ethinylestradiol and levonorgestrel (CYP3A substrates): increased ethinylestradiol AUC by 1.4-fold and levonorgestrel AUC by 1.6-fold, but did not have a clinically meaningful effect on their C max . In Vitro Studies Cytochrome P450 (CYP) Enzymes : Rucaparib inhibited CYP2C8 and CYP2D6 and induced CYP1A2. UDP-glucuronosyltransferase (UGT) Enzymes : Rucaparib inhibited UGT1A1. Transporter Systems : Rucaparib is a substrate of P-gp and BCRP. Rucaparib is not a substrate of OATP1B1, OATP1B3, OAT1, OAT3, or OCT2. Rucaparib inhibited OATP1B1, OATP1B3, OAT1, OAT3, MATE1, MATE2-K, OCT1, OCT2, and MRP4. Rucaparib did not inhibit MRP2, MRP3, or BSEP.