Ixazomib

NINLARO ® is indicated in combination with lenalidomide and dexamethasone for the treatment of patients with multiple myeloma who have received at least one prior therapy. NINLARO is a proteasome inhibitor indicated in combination with lenalidomide and dexamethasone for the treatment of patients with multiple myeloma who have received at least one prior therapy. ( 1 ) Limitations of Use : NINLARO is not recommended for use in the maintenance setting or in newly diagnosed multiple myeloma in combination with lenalidomide and dexamethasone outside of controlled clinical trials. ( 1 ) Limitations of Use : NINLARO is not recommended for use in the maintenance setting or in newly diagnosed multiple myeloma in combination with lenalidomide and dexamethasone outside of controlled clinical trials [see Warnings and Precautions (5.9) and Clinical Studies (14.2 , 14.3) ] .

NINLARO is available in the following capsules: 4 mg ixazomib: Light orange gelatin capsule imprinted with "Takeda" on the cap and "4 mg" on the body in black ink. 3 mg ixazomib: Light grey gelatin capsule imprinted with "Takeda" on the cap and "3 mg" on the body in black ink. 2.3 mg ixazomib: Light pink gelatin capsule imprinted with "Takeda" on the cap and "2.3 mg" on the body in black ink. Capsules: 4 mg, 3 mg, and 2.3 mg ( 3 )

None. None. ( 4 )

Thrombocytopenia : Monitor platelet counts at least monthly during treatment and adjust dosing, as needed. ( 2.2 , 5.1 ) Gastrointestinal Toxicities : Adjust dosing for severe diarrhea, constipation, nausea, and vomiting, as needed. ( 2.2 , 5.2 ) Peripheral Neuropathy : Monitor patients for symptoms of peripheral neuropathy and adjust dosing, as needed. ( 2.2 , 5.3 ) Peripheral Edema : Monitor for fluid retention. Investigate for underlying causes, when appropriate. Adjust dosing, as needed. ( 2.2 , 5.4 ) Cutaneous Reactions : Monitor patients for rash and adjust dosing, as needed. ( 2.2 , 5.5 ) Thrombotic Microangiopathy : Monitor for signs and symptoms. Discontinue NINLARO if suspected. ( 5.6 ) Hepatotoxicity : Monitor hepatic enzymes during treatment. ( 5.7 ) Embryo-Fetal Toxicity : NINLARO can cause fetal harm. Advise patients of the potential risk to a fetus and to use effective non-hormonal contraception. ( 5.8 , 8.1 , 8.3 ) Increased Mortality in Patients Treated with NINLARO in the Maintenance Setting : Treatment of patients with NINLARO for multiple myeloma in the maintenance setting is not recommended outside of controlled trials. ( 5.9 )

5.1 Thrombocytopenia Thrombocytopenia has been reported with NINLARO with platelet nadirs typically occurring between Days 14-21 of each 28-day cycle and recovery to baseline by the start of the next cycle [see Adverse Reactions (6.1) ] . Grade 3 thrombocytopenia was reported in 17% of patients in the NINLARO regimen and Grade 4 thrombocytopenia was reported in 13% in the NINLARO regimen. The rate of platelet transfusions was 10% in the NINLARO regimen and 7% in the placebo regimen. Monitor platelet counts at least monthly during treatment with NINLARO. Consider more frequent monitoring during the first three cycles. Manage thrombocytopenia with dose modifications [see Dosage and Administration (2.2) ] and platelet transfusions as per standard medical guidelines.

5.2 Gastrointestinal Toxicities Diarrhea, constipation, nausea, and vomiting have been reported with NINLARO, occasionally requiring use of antidiarrheal and antiemetic medications, and supportive care. Diarrhea was reported in 52% of patients in the NINLARO regimen and 43% in the placebo regimen, constipation in 35% and 28%, respectively, nausea in 32% and 23%, respectively, and vomiting in 26% and 13%, respectively. Diarrhea resulted in discontinuation of one or more of the three drugs in 3% of patients in the NINLARO regimen and 2% of patients in the placebo regimen [see Adverse Reactions (6.1) ] . Adjust dosing for Grade 3 or 4 symptoms [see Dosage and Administration (2.2) ] .

5.3 Peripheral Neuropathy The majority of peripheral neuropathy adverse reactions were Grade 1 (18% in the NINLARO regimen and 16% in the placebo regimen) and Grade 2 (11% in the NINLARO regimen and 6% in the placebo regimen) [see Adverse Reactions (6.1) ] . Grade 3 adverse reactions of peripheral neuropathy were reported at 2% in both regimens. The most commonly reported reaction was peripheral sensory neuropathy (24% and 17% in the NINLARO and placebo regimen, respectively). Peripheral motor neuropathy was not commonly reported in either regimen (<1%). Peripheral neuropathy resulted in discontinuation of one or more of the three drugs in 4% of patients in the NINLARO regimen and <1% of patients in the placebo regimen. Patients should be monitored for symptoms of neuropathy. Patients experiencing new or worsening peripheral neuropathy may require dose modification [see Dosage and Administration (2.2) ] .

5.4 Peripheral Edema Peripheral edema was reported in 27% and 21% of patients in the NINLARO and placebo regimens, respectively. The majority of peripheral edema adverse reactions were Grade 1 (17% in the NINLARO regimen and 14% in the placebo regimen) and Grade 2 (7% in the NINLARO regimen and 6% in the placebo regimen). Grade 3 peripheral edema was reported in 2% and 1% of patients in the NINLARO and placebo regimens, respectively [see Adverse Reactions (6.1) ] . Peripheral edema resulted in discontinuation of one or more of the three drugs in <1% of patients in both regimens. Evaluate for underlying causes and provide supportive care, as necessary. Adjust dosing of dexamethasone per its prescribing information or NINLARO for Grade 3 or 4 symptoms [see Dosage and Administration (2.2) ] .

5.5 Cutaneous Reactions Rash was reported in 27% of patients in the NINLARO regimen and 16% of patients in the placebo regimen. The majority of the rash adverse reactions were Grade 1 (15% in the NINLARO regimen and 9% in the placebo regimen) or Grade 2 (9% in the NINLARO regimen and 4% in the placebo regimen) [see Adverse Reactions (6.1) ] . Grade 3 rash was reported in 3% of patients in the NINLARO regimen and 2% of patients in the placebo regimen. Serious adverse reactions of rash were reported in <1% of patients in the NINLARO regimen. The most common type of rash reported in both regimens included maculo-papular and macular rash. Rash resulted in discontinuation of one or more of the three drugs in <1% of patients in both regimens. Manage rash with supportive care or with dose modification if Grade 2 or higher [see Dosage and Administration (2.2) ] . Stevens-Johnson syndrome and toxic epidermal necrolysis, including fatal cases, have been reported with NINLARO [see Adverse Reactions (6.1 , 6.2 )] . If Stevens-Johnson syndrome or toxic epidermal necrolysis occurs, discontinue NINLARO and manage as clinically indicated.

5.6 Thrombotic Microangiopathy Cases, sometimes fatal, of thrombotic microangiopathy, including thrombotic thrombocytopenic purpura/hemolytic uremic syndrome (TTP/HUS), have been reported in patients who received NINLARO [see Adverse Reactions (6.1) ] . Monitor for signs and symptoms of TTP/HUS. If the diagnosis is suspected, stop NINLARO and evaluate. If the diagnosis of TTP/HUS is excluded, consider restarting NINLARO. The safety of reinitiating NINLARO therapy in patients previously experiencing TTP/HUS is not known.

5.7 Hepatotoxicity Drug-induced liver injury, hepatocellular injury, hepatic steatosis, hepatitis cholestatic and hepatotoxicity have each been reported in <1% of patients treated with NINLARO [see Adverse Reactions (6.1) ] . Hepatotoxicity has been reported (10% in the NINLARO regimen and 9% in the placebo regimen). Monitor hepatic enzymes regularly and adjust dosing for Grade 3 or 4 symptoms [see Dosage and Administration (2.2) ] .

5.8 Embryo-Fetal Toxicity NINLARO can cause fetal harm when administered to a pregnant woman based on the mechanism of action and findings in animal studies. Ixazomib caused embryo-fetal toxicity in pregnant rats and rabbits at doses resulting in exposures that were slightly higher than those observed in patients receiving the recommended dose. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective non-hormonal contraception during treatment with NINLARO and for 90 days following the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with NINLARO and for 90 days following the last dose [see Drug Interactions (7.1) and Use in Specific Populations (8.1 , 8.3) ] .

5.9 Increased Mortality in Patients Treated with NINLARO in the Maintenance Setting In two prospective randomized clinical trials in multiple myeloma in the maintenance setting, treatment with NINLARO resulted in increased deaths. Treatment of patients with NINLARO for multiple myeloma in the maintenance setting is not recommended outside of controlled trials [see Clinical Studies (14.2) ] .

The following adverse reactions are described in detail in other sections of the prescribing information: Thrombocytopenia [see Warnings and Precautions (5.1) ] Gastrointestinal Toxicities [see Warnings and Precautions (5.2) ] Peripheral Neuropathy [see Warnings and Precautions (5.3) ] Peripheral Edema [see Warnings and Precautions (5.4) ] Cutaneous Reactions [see Warnings and Precautions (5.5) ] Thrombotic Microangiopathy [see Warnings and Precautions (5.6) ] Hepatotoxicity [see Warnings and Precautions (5.7) ] The most common adverse reactions (≥20%) are thrombocytopenia, neutropenia, diarrhea, constipation, peripheral neuropathy, nausea, peripheral edema, rash, vomiting, and bronchitis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Takeda Pharmaceuticals at 1-844-617-6468 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 safety population from the randomized, double-blind, placebo-controlled clinical study included 720 patients with relapsed and/or refractory multiple myeloma, who received NINLARO in combination with lenalidomide and dexamethasone (NINLARO regimen; N=361) or placebo in combination with lenalidomide and dexamethasone (placebo regimen; N=359). The most frequently reported adverse reactions (≥20% with a difference of ≥5% compared to placebo) in the NINLARO regimen were thrombocytopenia, neutropenia, diarrhea, constipation, peripheral neuropathy, nausea, peripheral edema, rash, vomiting, and bronchitis. Serious adverse reactions reported in ≥2% of patients in the NINLARO regimen included diarrhea (3%), thrombocytopenia (2%) and bronchitis (2%). One or more of the three drugs was permanently discontinued in 4% of patients reporting peripheral neuropathy, 3% of patients reporting diarrhea and 2% of patients reporting thrombocytopenia. Permanent discontinuation of NINLARO due to an adverse reaction occurred in 10% of patients. Table 4 summarizes the non-hematologic adverse reactions occurring in at least 5% of patients with at least a 5% difference between the NINLARO regimen and the placebo regimen. Table 4: Non-Hematologic Adverse Reactions Occurring in ≥5% of Patients with a ≥5% Difference Between the NINLARO Regimen and the Placebo Regimen (All Grades, Grade 3 and Grade 4) System Organ Class / Preferred Term NINLARO + Lenalidomide and Dexamethasone N=361 Placebo + Lenalidomide and Dexamethasone N=359 % % All Grades Grade 3 Grade 4 All Grades Grade 3 Grade 4 Note: Adverse reactions included as preferred terms are based on MedDRA version 23.0. Gastrointestinal disorders Diarrhea 52 10 0 43 3 0 Constipation 35 <1 0 28 <1 0 Nausea 32 2 0 23 0 0 Vomiting 26 1 0 13 <1 0 Nervous system disorders Peripheral neuropathies Represents a pooling of preferred terms 32 2 0 24 2 0 Musculoskeletal and connective tissue disorders Back pain At the time of the final analysis, these adverse reactions no longer met the criterion for a ≥5% difference between the NINLARO regimen and the placebo regimen. 27 <1 0 24 3 0 Infections and infestations Upper respiratory tract infection 27 1 0 23 1 0 Bronchitis 22 2 0 17 2 <1 Skin and subcutaneous tissue disorders Rash 27 3 0 16 2 0 General disorders and administration site conditions Edema peripheral 27 2 0 21 1 0 Table 5 represents pooled information from adverse event and laboratory data. Table 5: Thrombocytopenia and Neutropenia – NINLARO + Lenalidomide and Dexamethasone N=361 Placebo + Lenalidomide and Dexamethasone N=359 % % – Any Grade Grade 3-4 Any Grade Grade 3-4 Thrombocytopenia 85 30 67 14 Neutropenia 74 34 70 37 Herpes Zoster Herpes zoster was reported in 6% of patients in the NINLARO regimen and 3% of patients in the placebo regimen. Antiviral prophylaxis was allowed at the healthcare provider's discretion. Patients treated in the NINLARO regimen who received antiviral prophylaxis had a lower incidence (1%) of herpes zoster infection compared to patients who did not receive prophylaxis (10%). Eye Disorders Eye disorders were reported with many different preferred terms but in aggregate, the frequency was 38% in patients in the NINLARO regimen. The most common adverse reactions of the eyes were cataract (15%), conjunctivitis (9%), blurred vision (7%), and dry eye (6%). Other Clinical Trials Experience The following serious adverse reactions have each been reported at a frequency of <1% in patients treated with NINLARO: acute febrile neutrophilic dermatosis (Sweet's syndrome), Stevens-Johnson syndrome, transverse myelitis, posterior reversible encephalopathy syndrome, tumor lysis syndrome, and thrombotic thrombocytopenic purpura.

6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of NINLARO. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Immune system disorders: Angioedema Skin and subcutaneous tissue disorders: Toxic epidermal necrolysis

Strong CYP3A inducers : Avoid concomitant use with NINLARO. ( 7.1 , 12.3 )

7.1 Strong CYP3A Inducers Avoid concomitant administration of NINLARO with strong CYP3A inducers (such as rifampin, phenytoin, carbamazepine, and St. John's Wort) [see Clinical Pharmacology (12.3) ] .

Hepatic Impairment : Reduce the NINLARO starting dose to 3 mg in patients with moderate or severe hepatic impairment. ( 2.3 , 8.6 ) Renal Impairment : Reduce the NINLARO starting dose to 3 mg in patients with severe renal impairment or end-stage renal disease requiring dialysis. ( 2.4 , 8.7 ) Lactation : Advise not to breastfeed. ( 8.2 )

8.1 Pregnancy Risk Summary Based on its mechanism of action [see Clinical Pharmacology (12.1) ] and data from animal reproduction studies, NINLARO can cause fetal harm when administered to a pregnant woman. There are no available data on NINLARO use in pregnant women to evaluate drug-associated risk. Ixazomib caused embryo-fetal toxicity in pregnant rats and rabbits at doses resulting in exposures that were slightly higher than those observed in patients receiving the recommended dose (see Data ) . Advise pregnant women of the potential risk to a fetus. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data In an embryo-fetal development study in pregnant rabbits there were increases in fetal skeletal variations/abnormalities (fused caudal vertebrae, number of lumbar vertebrae, and full supernumerary ribs) at doses that were also maternally toxic (≥0.3 mg/kg). Exposures in the rabbit at 0.3 mg/kg were 1.9 times the clinical time averaged exposures at the recommended dose of 4 mg. In a rat dose range-finding embryo-fetal development study, at doses that were maternally toxic, there were decreases in fetal weights, a trend towards decreased fetal viability, and increased post-implantation losses at 0.6 mg/kg. Exposures in rats at the dose of 0.6 mg/kg was 2.5 times the clinical time averaged exposures at the recommended dose of 4 mg.

8.2 Lactation Risk Summary There are no data on the presence of ixazomib or its metabolites in human milk, the effects of the drug on the breast fed infant, or the effects of the drug on milk production. Because of the potential for serious adverse reactions from NINLARO in a breastfed infant, advise women not to breastfeed during treatment with NINLARO and for 90 days after the last dose.

8.3 Females and Males of Reproductive Potential NINLARO can cause fetal harm when administered to pregnant women [see Use in Specific Populations (8.1) ] . Pregnancy Testing Verify pregnancy status in females of reproductive potential prior to initiating NINLARO. Contraception Females Advise females of reproductive potential to use effective non-hormonal contraception during treatment with NINLARO and for 90 days after the last dose. Dexamethasone is known to be a weak to moderate inducer of CYP3A4 as well as other enzymes and transporters. Because NINLARO is administered with dexamethasone, the risk for reduced efficacy of contraceptives needs to be considered [see Drug Interactions (7.1) ] . Males Advise males with female partners of reproductive potential to use effective contraception during treatment with NINLARO and for 90 days after the last dose.

8.4 Pediatric Use Safety and effectiveness of NINLARO have not been established in pediatric patients.

8.5 Geriatric Use Of the total number of subjects in clinical studies of NINLARO, 55% were 65 and over, while 17% were 75 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

8.6 Hepatic Impairment In patients with moderate or severe hepatic impairment, the mean AUC increased by 20% when compared to patients with normal hepatic function. Reduce the starting dose of NINLARO in patients with moderate or severe hepatic impairment [see Dosage and Administration (2.3) , Clinical Pharmacology (12.3) ] .

8.7 Renal Impairment In patients with severe renal impairment or ESRD requiring dialysis, the mean AUC increased by 39% when compared to patients with normal renal function. Reduce the starting dose of NINLARO in patients with severe renal impairment or ESRD requiring dialysis. NINLARO is not dialyzable and therefore can be administered without regard to the timing of dialysis [see Dosage and Administration (2.4) , Clinical Pharmacology (12.3) ] .

Ixazomib is a reversible proteasome inhibitor. Ixazomib preferentially binds and inhibits the chymotrypsin-like activity of the beta 5 subunit of the 20S proteasome. Ixazomib induced apoptosis of multiple myeloma cell lines in vitro. Ixazomib demonstrated in vitro cytotoxicity against myeloma cells from patients who had relapsed after multiple prior therapies, including bortezomib, lenalidomide, and dexamethasone. The combination of ixazomib and lenalidomide demonstrated synergistic cytotoxic effects in multiple myeloma cell lines. In vivo, ixazomib demonstrated antitumor activity in a mouse multiple myeloma tumor xenograft model.