Lerodalcibep

LEROCHOL TM is indicated as an adjunct to diet and exercise to reduce low-density lipoprotein cholesterol (LDL-C) in adults with hypercholesterolemia, including heterozygous familial hypercholesterolemia (HeFH). LEROCHOL is a proprotein convertase subtilisin kexin type 9 (PCSK9) inhibitor indicated as an adjunct to diet and exercise: to reduce low-density lipoprotein cholesterol (LDL-C) in adults with hypercholesterolemia, including heterozygous familial hypercholesterolemia (HeFH). ( 1 )

Injection: 300 mg/1.2 mL (250 mg/mL) of clear to slightly opalescent, brownish-yellow to amber solution in a single-dose prefilled syringe. Injection: 300 mg/1.2 mL (250 mg/mL) solution in a single-dose prefilled syringe. ( 3 )

None. None. ( 4 )

Common adverse reactions occurring in ≥1% of patients treated with LEROCHOL were injection site reactions, nasopharyngitis, diarrhea, nausea and peripheral edema. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact LIB Therapeutics, Inc. at 1-877-2-LEROCHOL 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. Adverse Reactions in Adults with Primary Hypercholesterolemia Adverse Reactions in Two Pooled 52-week Controlled Trials In two pooled 52-week, double-blind, randomized, placebo-controlled trials (Trials 1 and 2), 1,229 patients received 300 mg of LEROCHOL subcutaneously every 4 weeks [see Clinical Studies ( 14 )] . The mean age was 64 years (range 25 to 90 years), 52% were 65 years of age or older, 37% female, 79% White, 18% Black or African American, 4% Asian; 7% identified as Hispanic or Latino ethnicity. At baseline, 9% of patients had a diagnosis of HeFH, 74% had established atherosclerotic cardiovascular disease (ASCVD), and 26% were at increased risk for ASCVD. Adverse reactions reported in at least 2% of LEROCHOL-treated patients and more frequently than in placebo-treated patients are shown in Table 1 . Adverse reactions led to treatment discontinuation in 4% of LEROCHOL-treated patients and placebo-treated patients. The most frequent adverse reaction leading to treatment discontinuation was injection site reactions, with a higher frequency in the LEROCHOL-treated group compared to placebo-treated patients (1% vs. 0%). Table 1: Adverse Reactions Occurring in ≥2% of LEROCHOL-treated Patients with Hypercholesterolemia and > 1% More Frequently than Placebo-treated Patients in Two Pooled 52-Week Trials (Trials 1 and 2) a Grouped terms composed of several similar terms Adverse Reaction a LEROCHOL 300 mg (N=1,229) % Placebo (N=612) % Nasopharyngitis 15 14 Injection site reactions 12 5 Peripheral edema 2 <1 Adverse Reactions in a 24-Week Controlled Trial In a 24-week, double-blind, randomized, placebo-controlled trial (Trial 3), 318 patients with HeFH received 300 mg of LEROCHOL subcutaneously every 4 weeks [see Clinical Studies ( 14 )]. Adverse reactions reported in at least 2% of LEROCHOL-treated patients, and more frequently than in placebo-treated patients are shown in Table 2 . Table 2: Adverse Reactions Occurring in ≥2% LEROCHOL-treated Patients with HeFH and >1% More Frequently than Placebo-treated Patients at 24 Weeks (Trial 3) Adverse Reaction LEROCHOL 300 mg (N=318) % Placebo (N=159) % a Grouped terms composed of several similar terms Injection site reactions a 18 3 Nasopharyngitis a 13 9 Diarrhea 3 1 Nausea 2 0 Peripheral edema a 2 <1

8.1 Pregnancy Risk Summary Discontinue LEROCHOL when pregnancy is recognized. Alternatively, consider the ongoing therapeutic needs of the individual patient. LEROCHOL increases LDL-C uptake and lowers LDL-C levels in the circulation, thus decreasing cholesterol and possibly other biologically active substances derived from cholesterol; therefore, LEROCHOL may cause fetal harm when administered to pregnant patients based on the mechanism of action [see Clinical Pharmacology ( 12.1 )]. In addition, treatment of hypercholesterolemia is not generally necessary during pregnancy. Atherosclerosis is a chronic process and the discontinuation of lipid-lowering drugs during pregnancy should have little impact on the outcome of long-term therapy of primary hypercholesterolemia for most patients. Available data from clinical trials on LEROCHOL use in pregnant women are insufficient to evaluate for a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. In animal reproduction studies, there were no adverse developmental effects observed when pregnant monkeys were administered lerodalcibep-liga subcutaneously during organogenesis and through to parturition at doses up to 100 mg/kg/week [up to 119-fold the exposure at the maximum recommended human dose (MRHD) of 300 mg every month]. The background risk of major birth defects and miscarriage for the indicated population is unknown. 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 cynomolgus monkeys, no effects on embryo-fetal or postnatal development (up to 6 months of age) were observed when lerodalcibep-liga was dosed during organogenesis and through parturition at 30 and 100 mg/kg subcutaneously once weekly (exposures up to 119-fold the MRHD by AUC). An assessment of immune function in the infants showed no treatment-related adverse effects. Measurable lerodalcibep-liga serum concentrations were observed in the infant monkeys with infant serum concentrations approximately 2 to 7% of maternal serum concentrations on postnatal days 14, 21 and 28, indicating that lerodalcibep-liga has the potential to be transmitted from the mother to the developing fetus.

8.2 Lactation Risk Summary There are no data on the presence of lerodalcebip-liga in human milk, the effects on the breastfed infant, or the effects on milk production. In animal reproduction studies, lerodalcibep-liga was present in the milk of lactating monkeys (see Data ). When a drug is present in animal milk, it is likely that the drug will be present in human milk. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for LEROCHOL and any potential adverse effects on the breastfed infant from LEROCHOL or from the underlying maternal condition. Data Low concentrations of lerodalcibep-liga were measured in milk samples collected from monkeys on post-partum day (PPD) 7 and PPD 14, when lerodalcibep-liga was dosed during organogenesis through parturition at 30 and 100 mg/kg subcutaneously once weekly (exposures up to 119-fold the MRHD by AUC). There is no information regarding whether lerodalcibep-liga ingested with milk transfers to neonatal or infant monkey circulation.

8.4 Pediatric Use The safety and effectiveness of LEROCHOL in pediatric patients have not been established. Clinical trials of LEROCHOL in pediatric patients with HeFH have not been conducted. Effectiveness of LEROCHOL was not demonstrated in a 24-week, randomized, open-label, active-controlled trial (NCT04034485) in 19 pediatric patients aged 10 to 17 years with homozygous familial hypercholesterolemia (HoFH).

8.5 Geriatric Use Of the 1,631 patients treated with LEROCHOL 300 mg in clinical trials, 687 (42%) patients were 65 years of age and older, while 198 (12%) patients were 75 years of age or older. No overall differences in safety or effectiveness were observed between patients 65 years of age and older and younger adult patients.

8.6 Renal Impairment No dose adjustment is necessary in patients with mild to moderate renal impairment [estimated glomerular filtration rate (eGFR) ≥30 to <90 mL/min] [see Clinical Pharmacology ( 12.3 )] . LEROCHOL has not been studied in patients with severe renal impairment (eGFR < 30 mL/min) or end-stage renal disease.

8.7 Hepatic Impairment No dose adjustment is necessary in patients with mild (total bilirubin 1.0 to 1.5 upper limit of normal or aspartate aminotransaminase > upper limit of normal) or moderate (total bilirubin 1.5 to 3.0 upper limit of normal) hepatic impairment [see Clinical Pharmacology ( 12.3 )]. LEROCHOL has not been studied in patients with severe hepatic impairment.

Lerodalcibep-liga is a recombinant fusion protein that binds PCSK9 with picomolar affinity. PCSK9 binds to low-density lipoprotein receptor (LDLR) on the surface of hepatocytes to promote LDLR degradation within the liver. By inhibiting the binding of PCSK9 to LDLR, lerodalcibep-liga increases the number of LDLRs available to clear LDL-C from the blood, thereby lowering LDL-C levels. [see Clinical Pharmacology ( 12.3 )] .