Livdelzi
(seladelpar)Dosage & Administration
The recommended dosage of LIVDELZI is 10 mg orally once daily. Administer LIVDELZI with or without food.
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Livdelzi Prescribing Information
LIVDELZI is indicated for the treatment of primary biliary cholangitis (PBC) in combination with ursodeoxycholic acid (UDCA) in adults who have had an inadequate response to UDCA, or as monotherapy in patients unable to tolerate UDCA.
This indication is approved under accelerated approval based on a reduction of alkaline phosphatase (ALP) [see Clinical Studies (14)]. Improvement in survival or prevention of liver decompensation events have not been demonstrated. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trial(s).
Limitations of Use
Use of LIVDELZI is not recommended in patients who have or develop decompensated cirrhosis (e.g., ascites, variceal bleeding, hepatic encephalopathy) [see Use in Specific Populations (8.7)].
Recommended Dosage and Administration
The recommended dosage of LIVDELZI is 10 mg orally once daily. Administer LIVDELZI with or without food [see Clinical Pharmacology (12.3)].
Administration Modification for Bile Acid Sequestrants
Administer LIVDELZI at least 4 hours before or 4 hours after taking bile acid sequestrants, or at as great an interval as possible [see Drug Interactions (7.1)].
Capsules: 10 mg, opaque, hard gelatin capsules, size 1, with light gray opaque body and a dark blue opaque cap, printed with "CBAY" on the cap and "10" on the body.
Pregnancy
Risk Summary
There are insufficient data from human pregnancies exposed to LIVDELZI to allow an assessment of a drug-associated risk of major birth defects, miscarriage, or other adverse maternal or fetal outcomes. In animal reproduction studies, no malformations or effects on embryo-fetal survival occurred in pregnant rats or rabbits after seladelpar treatment at exposures of up to 176-times and 49-times the recommended dose based on AUC (area under the plasma concentration-time curve), respectively. Reduction of fetal growth associated with maternal toxicity occurred in pregnant rabbits at 49-times the recommended dose based on AUC, but not at 3-times the recommended dose. In a pre- and postnatal development study in rats with maternal dosing of seladelpar during organogenesis through lactation, postnatal growth and pre-weaning survival of offspring was reduced at 115-times the recommended dose based on AUC, but not at the lower exposure of 16-times the recommended dose (see Data).
The background risks of major birth defects and miscarriage for the indicated population are 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.
Report pregnancies to Gilead Sciences, Inc. at 1-800-445-3235.
Data
Animal Data
No effects on embryo-fetal development were observed in pregnant rats treated orally with up to 100 mg/kg/day seladelpar (176-times the recommended dose based on AUC) during the period of organogenesis.
Oral administration of 40 mg/kg/day seladelpar in pregnant rabbits (49-times the recommended dose based on AUC) during organogenesis resulted in reduced fetal body weight, which was likely due to maternal toxicity (i.e., decreases in food consumption, body weight, and gravid uterine weight) and distended stomach. No treatment-related fetal malformations or effects on embryo-fetal survival occurred in rabbits at 49-times the recommended dose. No adverse effects on embryo-fetal development were observed at 10 mg/kg/day (3-times the recommended dose based on AUC).
A pre- and postnatal development study was performed using oral administration of seladelpar at doses of 0 (vehicle), 5, 20, or 100 mg/kg/day in pregnant rats during organogenesis through lactation. Treatment with 5 mg/kg/day or higher (4-times the recommended dose based on AUC) resulted in a dose-dependent reduction in pup body weight during the pre-weaning period. The weight reduction in offspring was associated with delays in developmental milestones (i.e., eye opening and pinna unfolding at 5 mg/kg/day and higher; hair growth and sexual maturity at 100 mg/kg/day). Reduction in pup body weight at 100 mg/kg/day (115-times the recommended dose based on AUC), which continued into the post-weaning maturation period, was associated with a slight decrease in pre-weaning survival and was considered adverse. No adverse effects were found in clinical observations, neurobehavioral assessment, or reproductive performance testing in the offspring of females treated with seladelpar. At 20 mg/kg/day (16-times the recommended dose based on AUC), none of the observed effects in offspring were considered to be adverse.
Lactation
Risk Summary
There are no data on the presence of seladelpar or its metabolite in either human or animal milk, the effects on the breastfed infant, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for LIVDELZI and any potential adverse effects on the breastfed infant from LIVDELZI or from the underlying maternal condition.
Pediatric Use
The safety and effectiveness of LIVDELZI in pediatric patients have not been established.
Geriatric Use
Of the 128 LIVDELZI-treated patients in Trial 1, 29 (23%) patients were 65 years of age and older and 2 (2%) were 75 years of age and older. No overall differences in safety or effectiveness were observed between patients 65 to 75 years of age and younger adult patients. No dosage adjustment for patients 65 years of age and older is necessary.
Clinical studies of LIVDELZI did not include sufficient numbers of patients 75 years of age and older to determine whether they respond differently from younger adult patients. Because of limited clinical experience with LIVDELZI in patients older than 75 years old, closer monitoring of adverse events in patients older than 75 years is recommended [see Clinical Pharmacology (12.3)].
Renal Impairment
The recommended dosage in patients with mild, moderate, or severe renal impairment is the same as in patients with normal renal function. Patients with end-stage renal disease on dialysis have not been studied [see Clinical Pharmacology (12.3)].
Hepatic Impairment
No dosage adjustment is recommended for PBC patients with mild hepatic impairment (Child-Pugh A) [see Clinical Pharmacology (12.3)].
The safety and efficacy of LIVDELZI in patients with decompensated cirrhosis have not been established. Use of LIVDELZI is not recommended in patients who have or develop decompensated cirrhosis (e.g., ascites, variceal bleeding, hepatic encephalopathy).
Monitor patients with cirrhosis for evidence of decompensation. Consider discontinuing LIVDELZI if the patient progresses to moderate or severe hepatic impairment (Child-Pugh B or C).
CYP2C9 Poor Metabolizers
Monitor CYP2C9 poor metabolizers who receive a concomitant moderate to strong CYP3A4 inhibitor more frequently for adverse reactions.
Seladelpar is a CYP2C9 and CYP3A4 substrate. Increased seladelpar AUC is expected in patients who are CYP2C9 poor metabolizers with concomitant use of a moderate to strong CYP3A4 inhibitor [see Drug Interactions (7.1), Clinical Pharmacology (12.5)].
None.
Fractures
Fractures occurred in 4% of LIVDELZI-treated patients compared to no placebo-treated patients [see Adverse Reactions (6.1)].
Consider the risk of fracture in the care of patients treated with LIVDELZI and monitor bone health according to current standards of care.
Liver Test Abnormalities
LIVDELZI has been associated with dose-related increases in serum transaminase (aspartate aminotransferase [AST] and alanine aminotransferase [ALT]) levels greater than 3-times upper limit of normal (ULN) in PBC patients receiving 50 mg once daily (5-times higher than the recommended dosage) and 200 mg (20-times higher than the recommended dosage) once daily. Transaminase levels returned to pretreatment levels upon LIVDELZI discontinuation. LIVDELZI 10 mg once daily did not show a similar pattern for increases in transaminase levels [see Overdosage (10)].
Obtain baseline clinical and laboratory assessments at treatment initiation with LIVDELZI and monitor thereafter according to routine patient management. Interrupt LIVDELZI treatment if the liver tests (ALT, AST, total bilirubin [TB], and/or alkaline phosphatase [ALP]) worsen, or the patient develops signs and symptoms consistent with clinical hepatitis (e.g., jaundice, right upper quadrant pain, eosinophilia). Consider permanent discontinuation if liver tests worsen after restarting LIVDELZI.
Biliary Obstruction
Avoid use of LIVDELZI in patients with complete biliary obstruction. If biliary obstruction is suspected, interrupt LIVDELZI and treat as clinically indicated.