Ensartinib

Contraindications

4 CONTRAINDICATIONS ENSACOVE is contraindicated in patients who have experienced a severe hypersensitivity reaction to ENSACOVE, FD&C Yellow No. 5 (tartrazine), or to any of its components [see Warnings and Precautions ( 5.10 )] . Hypersensitivity reaction to ENSACOVE, FD&C Yellow No. 5 (tartrazine), or to any of its components. ( 4 )

Pregnancy & Breastfeeding

8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action [see Clinical Pharmacology ( 12.1 )] , ENSACOVE can cause fetal harm when administered to a pregnant woman. There are no available data on the use of ENSACOVE in pregnant women to inform a drug-associated risk. Oral administration of ensartinib to pregnant rats during the period of organogenesis caused adverse developmental outcomes, including embryo-fetal mortality, alterations to growth, and structural abnormalities. Adverse embryo-fetal findings were seen at maternal exposures approximately equivalent to the human exposure at the recommended dose of 225 mg/day based on AUC ( 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, pregnant rats received 20, 40, or 80 mg/kg/day of ensartinib during the period of organogenesis (gestation day 6 to 17). Ensartinib doses ≥40 mg/kg/day (approximately equivalent to the human exposure at the recommended dose of 225 mg/day based on AUC) resulted in an increase in the incidence of fetal malformations (aortic dislocation, ventricular septal defect, separated vertebrae) and dose-dependent delayed skeletal development, including decreased or delayed ossification of the vertebrae. Ensartinib at 80 mg/kg (approximately 6.4 times the human exposure at the recommended dose of 225 mg/day based on AUC) resulted in maternal toxicity (reduced body weight and food consumption), decreased fetal body weight, increased pre- and post-implantation loss, decreases in the number of live fetuses, and visceral variations (missing renal papillae, pyelectasis).