RAPIBLYK

Clinical summary

Indications and usage RAPIBLYK is indicated for the short-term reduction of ventricular rate in adults with supraventricular tachycardia including atrial fibrillation and atrial flutter. Standard dosing Administer as an intravenous infusion in a monitored setting. ( 2.1 ) Titrate according to ventricular rate. ( 2.1 ) If normal cardiac function, start at 9 mcg/kg/min; adjust dose in 10-minute intervals as needed in increments of 9 mcg/kg/min to a maximum of 36 mcg/kg/min. ( 2.1 ) If impaired cardiac function, start at 1 mcg/kg/min; adjust dose in 15-minute intervals as needed in increments of 1 mcg/kg/min to a maximum of 36 mcg/kg/min. ( 2.1 ). Contraindications RAPIBLYK is contraindicated in patients with: Severe sinus bradycardia, sick sinus syndrome, heart block greater than first degree [see Warnings and Precautions ( 5.2 )] . Decompensated heart failure [see Warnings and Precautions ( 5.3 )] . Cardiogenic shock: May precipitate further cardiovascular collapse and cause cardiac arrest. Pulmonary hypertension: May precipitate cardiorespiratory decompensation. Hypersensitivity reactions, including anaphylaxis, to landiolol or any of the inactive ingredients Key warnings Risk of hypotension, bradycardia, and cardiac failure: Monitor for signs and symptoms of cardiovascular adverse effects. Reduce or discontinue use ( 5.1 , 5.2 , 5.3 ) Risk of exacerbating reactive airway disease ( 5.5 ) Diabetes mellitus: May mask symptoms of hypoglycemia and alter glucose levels; monitor ( 5.6 ) Monitor for signs of myocardial ischemia when abruptly discontinuing in patients with coronary artery disease ( 5.10 ) Drug interactions Negative Inotropes and Chronotropes: Avoid ( 7.1 ) Sympathomimetics, Positive Inotropes and Vasoconstrictors: Avoid ( 7.2 ) Catecholamine Depleting Drugs: Monitor blood pressure and heart rate ( 7.3 ). Pregnancy guidance Risk Summary The available published data on RAPIBLYK use in pregnant women are insufficient to inform a drug associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. Landiolol exposure was limited to a single injection at the time of Cesarean delivery in a small clinical trial. Neonatal bradycardia, hypoglycemia, and respiratory depression have been observed with use of beta-blockers in pregnancy near the time of delivery (see Clinical Considerations) . Administration of landiolol to pregnant rats showed distribution of landiolol to the placenta and the fetus. In animal reproduction studies, no embryo-fetal toxicity was observed in rats or rabbits during the period of organogenesis at landiolol exposure in rats approximately 2.7 times human exposure at the maximum recommended human dose (MRHD) (see Data) . The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. 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. Clinical Considerations Fetal/Neonatal Adverse Reactions Landiolol crosses the placenta in rats. Neonates born to mothers who are receiving landiolol during pregnancy, may be at risk for hypotension, hypoglycemia, bradycardia, and respiratory depression. Monitor neonates exposed to landiolol during pregnancy and labor for hypotension, hypoglycemia, bradycardia, and respiratory depression and manage accordingly. Data Animal Data Landiolol HCl was administered intravenously to pregnant rats (25, 50, or 100 mg/kg/day from gestation day 7 to 17) and rabbits (25, 50, or 100 mg/kg/day from gestation day 8 to 18). No adverse embryo-fetal effects were observed in rats at the landiolol HCl dose of 25 mg/kg/day, resulting in systemic landiolol exposure (AUC) of approximately 2.7-times the exposure at the MRHD. In rabbits, no adverse embryo-fetal effects were detected at the landiolol HCl dose of 100 mg/kg/day; the resulting systemic landiolol exposure (AUC) at this dose level was not determined. In a prenatal and postnatal development study in rats, landiolol HCl was administered intravenously at 25, 50, or 100 mg/kg/day from gestation day 17 to postpartum/lactation day 20. A decrease in the viability index for the offspring on postpartum day 4 was observed for the high dose group. No effect on pre/post-natal development was observed at 50 mg/kg dose, which represents landiolol exposures approximately 5.4 times the human exposure at the MRHD.