Voranigo Drug Information

is indicated for the treatment of adult and pediatric patients 12 years and older with Grade 2 astrocytoma or oligodendroglioma with a susceptible isocitrate dehydrogenase-1 (IDH1) or isocitrate dehydrogenase-2 (IDH2) mutation, as detected by an FDA-approved test, following surgery including biopsy, sub-total resection, or gross total resection . VORANIGO is an isocitrate dehydrogenase-1 (IDH1) and isocitrate dehydrogenase-2 (IDH2) inhibitor indicated for the treatment of adult and pediatric patients 12 years and older with Grade 2 astrocytoma or oligodendroglioma with a susceptible IDH1 or IDH2 mutation, as detected by an FDA-approved test, following surgery including biopsy, sub-total resection, or gross total resection.

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. Adverse reactions described in the WARNINGS AND PRECAUTIONS reflect exposure to VORANIGO 40 mg orally once daily until disease progression or unacceptable toxicity in the 244 patients with astrocytoma or oligodendroglioma with susceptible IDH1 or IDH2 mutation in trials AG881-C-002 (NCT02481154, n=11), AG120-881-001 (NCT03343197, n=14) and INDIGO (NCT04164901, n=167 randomized patients and n=52 crossover patients). Among the 244 patients who received VORANIGO, 78% were exposed for 6 months or longer and 44% were exposed for greater than one year. In this pooled safety population, the most common (≥15%) adverse reactions were fatigue (33%), headache (28%), COVID-19 (28%), musculoskeletal pain (24%), diarrhea (21%), nausea (20%), and seizure (16%). In this pooled safety population, the most common (≥2%) Grade 3 or 4 laboratory abnormalities were increased ALT (9%), increased AST (4.8%), increased GGT (2.2%), and decreased neutrophils (2.2%). INDIGO The safety of VORANIGO was evaluated in 330 patients with Grade 2 astrocytoma or oligodendroglioma with an IDH1 or IDH2 mutation who received at least one dose of either VORANIGO 40 mg daily (N=167) or placebo (N=163) in the INDIGO trial . Patients received VORANIGO 40 mg orally once daily or placebo orally once daily until disease progression or unacceptable toxicity.

Among the 167 patients who were randomized and received VORANIGO, the median duration of exposure to VORANIGO was 12.7 months (range: 1 to 30 months) with 153 patients (92%) exposed to VORANIGO for at least 6 months and 89 (53%) exposed for at least 1 year. The demographics of patients randomized to VORANIGO were: median age 41 years (range: 21 to 71 years); 60% male, 74% White, 20% race not reported, 3% Asian, and 1.2% Black or African American; and 5% were Hispanic or Latino. Serious adverse reactions occurred in 7% of patients who received VORANIGO. The most common serious adverse reactions occurring in ≥2% of patients who received VORANIGO includes seizure (3%). Permanent discontinuation of VORANIGO due to an adverse reaction occurred in 3.6% of patients.

Adverse reactions which resulted in permanent discontinuation of VORANIGO in ≥2% of patients included ALT increased (3%). Dosage interruptions of VORANIGO due to an adverse reaction occurred in 30% of patients. Adverse reactions which required dose interruption in ≥5% of patients included ALT increased (14%), COVID-19 (9%), and AST increased (6%). Dose reductions of VORANIGO due to an adverse reaction occurred in 11% of patients. Adverse reactions which required dose reduction in ≥5% of patients included ALT increased (8%). The most common (≥15%) adverse reactions were fatigue (37%), COVID-19 (33%), musculoskeletal pain (26%), diarrhea (25%), and seizure (16%). Grade 3 or 4 (≥2%) laboratory abnormalities were ALT increased (10%), AST increased (4.8%), GGT increased (3%) and neutrophil decreased (2.4%). Adverse reactions and select laboratory abnormalities reported in the INDIGO trial are shown in Tables 3 and 4. Table 3: Adverse Reactions (≥5%) in Patients with Grade 2 IDH1/2 Mutant Glioma Who Received VORANIGO Compared with Placebo in the INDIGO Trial VORANIGO 40 mg daily (n=167) Placebo (n=163) Adverse Reaction Adverse reactions are based on NCI CTCAE v5.0. All Grades (%) Grades 3 or 4 (%) All Grades (%) Grades 3 or 4 (%) General Disorders Fatigue Grouped term includes asthenia. 37 0.6 36

Infections and Infestations

COVID-19 33 0 29 0 Nervous System Disorders Seizure Grouped term includes partial seizures, generalized tonic-clonic seizure, epilepsy, clonic convulsion, and simple partial seizures. 16 4.2 15

Musculoskeletal and Connective Tissue Disorders Musculoskeletal pain Grouped term includes arthralgia, back

pain, non-cardiac chest pain, pain in extremity, myalgia, neck pain, musculoskeletal chest pain, arthritis, and musculoskeletal stiffness. 26 0 25

Gastrointestinal Disorders Diarrhea Grouped term includes feces soft and frequent bowel movements.

25 0.6 17

Constipation 13 0 12 0 Abdominal pain Grouped term includes abdominal pain

upper, abdominal discomfort, abdominal pain lower, abdominal tenderness, and epigastric discomfort. 13 0 12 0 Decreased appetite 9 0 3.7 0 Table 4: Select Laboratory Abnormalities (≥5%) That Worsened from Baseline in Patients with Grade 2 IDH1/2 Mutant Glioma Who Received VORANIGO in the INDIGO Trial VORANIGO 40 mg daily N=167 Placebo N=163 Parameter All Grades Based on NCI CTCAE v5.0. (% The denominator used to calculate percentages is N, the number of subjects in the Safety Analysis Set within each treatment group. ) Grades 3 or 4 (% ) All Grades (% ) Grades 3 or 4 (% ) Abbreviations: AST = Aspartate Aminotransferase; ALT = Alanine Aminotransferase; GGT = Gamma-Glutamyl Transferase; ALP = Alkaline Phosphatase Chemistry Increased ALT 59 10 25 0 Increased AST 46 4.8 20 0 Increased Creatinine 11 0.6 7 0 Decreased Calcium 10 0 7 0 Increased Glucose Includes adverse reaction term hyperglycemia. 10 0 4.3 0 Increased GGT 38 3 10

Decreased Phosphate Includes adverse reaction terms hypophosphatemia and blood phosphorus decreased. 8

0.6 4.9 0 Increased Potassium 23 0.6 20 0 Increased ALP 10 1.2 7

Decreased Leukocytes 13 0.6 12 0.6 Decreased Neutrophils 14 2.4 12 1.8

Decreased Platelets 12 0 4.3 0

Effect of Other Drugs on

VORANIGO Table 5: Effect of Other Drugs on VORANIGO Strong and Moderate CYP1A2 Inhibitors Clinical Impact Concomitant use of VORANIGO with a strong or moderate CYP1A2 inhibitor may increase vorasidenib plasma concentrations , which may increase the risk of adverse reactions. Prevention or Management Avoid concomitant use of VORANIGO with strong and moderate CYP1A2 inhibitors. If concomitant use of moderate CYP1A2 inhibitors cannot be avoided, monitor for increased adverse reactions and modify the dosage for adverse reactions as recommended . Moderate CYP1A2 Inducers Clinical Impact Concomitant use of VORANIGO with moderate CYP1A2 inducers and smoking tobacco may decrease vorasidenib plasma concentrations , which may reduce the anti-tumor activity of VORANIGO. Prevention or Management Avoid concomitant use of VORANIGO with moderate CYP1A2 inducers and smoking tobacco.

Effect of

VORANIGO on Other Drugs Table 6: Effect of VORANIGO on Other Drugs Certain CYP3A Substrates Clinical Impact Concomitant use of VORANIGO with CYP3A substrates may decrease plasma concentrations of CYP3A substrates. Prevention or Management Avoid concomitant use of VORANIGO with CYP3A substrates, where a minimal concentration change may lead to reduced therapeutic effect. Hormonal Contraception Clinical Impact Concomitant use of VORANIGO may decrease the concentrations of hormonal contraceptives, which may lead to contraception failure and/or an increase in breakthrough bleeding.

Prevention or Management If concomitant use cannot be avoided, use with nonhormonal contraception methods.

Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action , VORANIGO can cause fetal harm when administered to a pregnant woman. There are no available data on VORANIGO use in pregnant women to inform a drug-associated risk. In animal embryo-fetal development studies, oral administration of vorasidenib to pregnant rats and rabbits during the period of organogenesis caused embryo-fetal toxicity at ≥8 times the human exposure based on the AUC at the highest recommended dose (see Data ). Advise pregnant women of the potential risk to the 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, vorasidenib was administered to pregnant rats via oral gavage at dose levels of 10, 25, and 75 mg/kg/day during the period of organogenesis (gestation days 6 to 17). Embryo-fetal toxicity (higher incidence of early resorptions, and visceral malformations of kidney and testes) occurred in rats at the maternally toxic dose of 75 mg/kg/day (approximately 170 times the human exposure based on the AUC at the highest recommended dose). Malformation of heart occurred in a rat at a dose of 25 mg/kg (approximately 97 times the human exposure based on the AUC at the highest recommended dose). Dose-related delayed ossification of bones and short ribs associated with decreased fetal body weights was observed at 10 and 25 mg/kg/day in the absence of maternal toxicity and at 75 mg/kg/day. The dose of 10 mg/kg/day is ≥45 times the human exposure based on the AUC at the highest recommended dose.

In an embryo-fetal development study, oral administration of vorasidenib to pregnant rabbits at dose levels of 2, 6, and 18 mg/kg/day during the period of organogenesis (gestation days 6 to 19) resulted in maternal toxicity at all doses (≥1.5 times the human exposure based on the AUC at the highest recommended dose) and caused higher incidence of late resorptions at 18 mg/kg/day as well as decreased fetal weights and delayed ossification at doses ≥6 mg/kg/day (≥8 times the human exposure based on the AUC at the highest recommended dose).

Pediatric Use The safety and effectiveness of VORANIGO have been established in pediatric patients aged 12 years and older for the treatment of Grade 2 IDH1- or IDH2-mutant astrocytoma or oligodendroglioma. Use of VORANIGO for this indication in this age group is supported by evidence from an adequate and well-controlled study of VORANIGO in adult and pediatric patients with additional population pharmacokinetic data demonstrating that age had no clinically meaningful effect on the pharmacokinetics of vorasidenib. In addition, the course of IDH1- or IDH2-mutant astrocytoma or oligodendroglioma is sufficiently similar between adults and pediatric patients to allow extrapolation of pharmacokinetic data in adults to pediatric patients . The exposure of vorasidenib in pediatric patients 12 years and older is predicted to be within range of exposure observed in adults at the recommended dosages . The safety and effectiveness of VORANIGO have not been established in pediatric patients younger than 12 years of age for any indication.