Opdualag Drug Information

OPDUALAG™ is indicated for the treatment of adult and pediatric patients 12 years of age or older with unresectable or metastatic melanoma. OPDUALAG is a combination of nivolumab, a programmed death receptor-1 (PD-1) blocking antibody, and relatlimab, a lymphocyte activation gene-3 (LAG-3) blocking antibody, indicated for the treatment of adult and pediatric patients 12 years of age or older with unresectable or metastatic melanoma.

• The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling.
• Severe and Fatal IMARs [see Warnings and Precautions (5.1) ]
• Infusion-Related Reactions [see Warnings and Precautions (5.2) ]
• Complications of Allogeneic HSCT [see Warnings and Precautions (5.3) ] The most common adverse reactions (≥20%) are musculoskeletal pain, fatigue, rash, pruritus, and diarrhea. (6.1) The most common laboratory abnormalities (≥20%) are decreased hemoglobin, decreased lymphocytes, increased AST, increased ALT, and decreased sodium. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Bristol-Myers Squibb at 1-800-721-5072 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 of OPDUALAG was evaluated in RELATIVITY-047, a randomized (1:1), double-blinded trial in 714 patients with previously untreated metastatic or unresectable melanoma [see Clinical Studies (14) ] . Patients received intravenous OPDUALAG (nivolumab 480 mg and relatlimab 160 mg) every 4 weeks (n=355) or nivolumab 480 mg by intravenous infusion every 4 weeks (n=359). Patients were treated with OPDUALAG or nivolumab until disease progression or unacceptable toxicity. The median duration of exposure was 6 months (range: 0 to 31 months) in OPDUALAG-treated patients and 5 months (range: 0 to 32 months) in nivolumab-treated patients. Serious adverse reactions occurred in 36% of patients treated with OPDUALAG. The most frequent serious adverse reactions reported in ≥1% of patients treated with OPDUALAG were adrenal insufficiency (1.4%), anemia (1.4%), colitis (1.4%), pneumonia (1.4%), acute myocardial infarction (1.1%), back pain (1.1%), diarrhea (1.1%), myocarditis (1.1%), and pneumonitis (1.1%). Fatal adverse reaction occurred in 3 (0.8%) patients who were treated with OPDUALAG; these included hemophagocytic lymphohistiocytosis, acute edema of the lung, and pneumonitis. OPDUALAG was permanently discontinued due to adverse reactions in 18% of patients. Adverse reactions which resulted in permanent discontinuation of OPDUALAG in ≥1% of patients included myocarditis (1.7%) and pneumonitis (1.4%). Dosage interruptions due to an adverse reaction occurred in 43% of patients who received OPDUALAG. Adverse reactions that required dosage interruption in ≥2% of patients who received OPDUALAG were diarrhea (3.9%), troponin increased (3.9%), AST increased (2.8%), troponin T increased (2.8%), ALT increased (2.3%), arthralgia (2.3%), hypothyroidism (2.3%), anemia (2%), fatigue (2%), pneumonitis (2%), and rash (2%). The most common (≥20%) adverse reactions that occurred in patients treated with OPDUALAG were musculoskeletal pain (45%), fatigue (39%), rash (28%), pruritus (25%), and diarrhea (24%). The most common (≥20%) laboratory abnormalities that occurred in patients treated with OPDUALAG were decreased hemoglobin (37%), decreased lymphocytes (32%), increased AST (30%), increased ALT (26%), and decreased sodium (24%). Tables 3 and 4 summarize both the adverse reactions and laboratory abnormalities, respectively, in RELATIVITY-047. Table 3: Adverse Reactions in ≥15% of Patients - RELATIVITY-047 Toxicity was graded per NCI CTCAE v5. a Includes multiple terms. Adverse Reaction OPDUALAG (n=355) Nivolumab (n=359) All Grades (%) Grades 3-4 (%) All Grades (%) Grades 3-4 (%) Musculoskeletal and Connective Tissue Musculoskeletal pain a 45 4.2 31 1.7 General Fatigue a 39 2 29 0.6 Skin and Subcutaneous Tissue Rash a 28 1.4 21 1.9 Pruritus 25 0 17 0.6 Gastrointestinal Diarrhea a 24 2 17 1.4 Nausea 17 0.6 14 0 Nervous System Headache a 18 0.3 12 0.3 Endocrine Hypothyroidism a 17 0 14 0 Metabolism and Nutrition Disorders Decreased appetite 15 0.6 7 0.3 Respiratory, Thoracic and Mediastinal Disorders Cough a 15 0.3 11 0 Clinically relevant adverse reactions in <15% of patients who received OPDUALAG included vitiligo, adrenal insufficiency, myocarditis, and hepatitis. Table 4: Laboratory Abnormalities (≥15%) That Worsened from Baseline a in Patients Who Received OPDUALAG in RELATIVITY-047 a Each test incidence is based on the number of patients who had both baseline and at least one on-study laboratory measurement available: OPDUALAG group (range: 280 to 342 patients) and nivolumab group (range: 276 to 345 patients). Laboratory Abnormality OPDUALAG a Nivolumab a Grades 1-4 (%) Grades 3-4 (%) Grades 1-4 (%) Grades 3-4 (%) Chemistry Increased AST 30 2.3 22 1.4 Increased ALT 26 3.2 25 2 Decreased sodium 24 1.2 21 0.6 Increased alkaline phosphatase 19 0.6 17 0.9 Increased creatinine 19 0 16 0 Hematology Decreased hemoglobin 37 2.7 31 3.5 Decreased lymphocytes 32 2.5 24 2.9

Pregnancy Risk Summary Based on findings in animals and mechanism of action, OPDUALAG can cause fetal harm when administered to a pregnant woman. Administration of nivolumab to cynomolgus monkeys from the onset of organogenesis through delivery resulted in increased abortion and premature infant death ( see Data ). Human IgG4 is known to cross the placenta; therefore, nivolumab and relatlimab have the potential to be transmitted from the mother to the developing fetus. The effects of OPDUALAG are likely to be greater during the second and third trimesters of pregnancy.

There are no available data on OPDUALAG in pregnant women to evaluate a drug-associated risk. Advise the patient 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 OPDUALAG injection for intravenous use contains nivolumab and relatlimab . Nivolumab: One function of the PD-1/PD-L1 pathway is to preserve pregnancy by maintaining immune tolerance to the fetus. The effects of nivolumab on prenatal and postnatal development were evaluated in monkeys that received nivolumab twice weekly from the onset of organogenesis through delivery, at exposure levels of between 9 and 42 times higher than those observed at the clinical dose of 3 mg/kg (based on AUC). Nivolumab administration resulted in a non-dose-related increase in spontaneous abortion and increased neonatal death. In surviving infants (18 of 32 compared to 11 of 16 vehicle-exposed infants) of cynomolgus monkeys treated with nivolumab, there were no apparent malformations and no effects on neurobehavioral, immunological, or clinical pathology parameters throughout the 6-month postnatal period.

Relatlimab: There are no available animal data on relatlimab. The effects of a murine surrogate anti-LAG-3 antibody was evaluated in mice using syngeneic and allogeneic breeding models. When anti-LAG-3 antibodies were administered beginning on gestation day 6, there were no maternal or developmental effects in either syngeneic or allogeneic breedings.

Pediatric Use The safety and effectiveness of OPDUALAG for the treatment of unresectable or metastatic melanoma have been established in pediatric patients 12 years of age or older who weigh at least 40 kg. Use of OPDUALAG for this indication is supported by evidence from an adequate and well-controlled study in adults and additional data analyses that suggest that nivolumab and relatlimab exposures in pediatric patients 12 years of age who weigh at least 40 kg are expected to result in similar safety and efficacy to that of adults. The pharmacokinetics of monoclonal antibodies and the course of unresectable or metastatic melanoma are sufficiently similar in adults and pediatric patients 12 years of age or older to allow extrapolation of data from adult patients to pediatric patients 12 years of age or older (who weigh at least 40 kg). A recommended dosage for pediatric patients 12 years of age or older who weigh less than 40 kg has not been established . The safety and effectiveness of OPDUALAG have not been established in pediatric patients 12 years of age or older who weigh less than 40 kg, and pediatric patients younger than 12 years of age.