Livmarli

— THERAPEUTIC CATEGORIES —
  • Miscellaneous gastrohepatic disorders

Livmarli Generic Name & Formulations

General Description

Maralixibat 9.5mg/mL; oral soln; grape flavor.

Pharmacological Class

Ileal bile acid transporter (IBAT) inhibitor.

How Supplied

Soln—30mL

Generic Availability

NO

Mechanism of Action

Maralixibat decreases the reabsorption of bile acids (primarily the salt forms) from the terminal ileum. The complete mechanism by which maralixibat improves pruritus in ALGS patients is unknown, but it may involve inhibition of the IBAT, which results in decreased reuptake of bile salts, as observed by a decrease in serum bile acids.

Livmarli Indications

Indications

Treatment of cholestatic pruritus in Alagille syndrome (ALGS). Treatment of cholestatic pruritus in progressive familial intrahepatic cholestasis (PFIC).

Limitations of Use

Not for use in a subgroup of PFIC type 2 patients with specific ABCB11 variants resulting in non-functional or complete absence of bile salt export pump (BSEP) protein.

Livmarli Dosage and Administration

Adults and Children

ALGS: <3mos: not established. PFIC: <5yrs: not established. Use a calibrated measuring device. Give at 30mins before a meal in the AM. ALGS: ≥3mos: initially 190mcg/kg once daily; after 1 week, increase to 380mcg/kg once daily, as tolerated; max daily dose (patients >70kg): 3mL or 28.5mg/day. PFIC: ≥5yrs: initially 285mcg/kg once daily; then should increase to 285mcg/kg twice daily, 428mcg/kg twice daily, and then to 570mcg/kg twice daily, as tolerated; max daily dose: 4mL or 38mg/day. For individual dose volume by weight, dose modification for adverse events: see full labeling.

Livmarli Contraindications

Contraindications

Prior or active hepatic decompensation events (eg, variceal hemorrhage, ascites, hepatic encephalopathy).

Livmarli Boxed Warnings

Not Applicable

Livmarli Warnings/Precautions

Warnings/Precautions

Obtain baseline liver tests (eg, ALT, AST, total/direct bilirubin, INR) and monitor frequently for the first 6 to 8 months during therapy and as clinically indicated; consider dose reduction or interruption if abnormalities or signs of clinical hepatitis occur in the absence of other causes. Discontinue permanently if persistent or recurrent liver test abnormalities, signs and symptoms consistent with clinical hepatitis upon rechallenge, or a hepatic decompensation event occur. Decompensated cirrhosis: monitor frequently in compensated cirrhosis and discontinue if hepatic decompensation occurs. Monitor for dehydration if diarrhea occurs and treat promptly. Consider dose reduction or interruption if persistent diarrhea, abdominal pain, or diarrhea accompanied with signs/symptoms occur; restart and adjust dose appropriately when resolves. Consider discontinuing if diarrhea or abdominal pain persists and no alternate etiology is identified, or if diarrhea or abdominal pain recur upon rechallenge. Obtain serum fat-soluble vitamin (FSV) levels at baseline and monitor during therapy; consider discontinuing if FSV deficiency persists or worsens despite supplementation. Consider interrupting if bone fracture or bleeding occurs and supplement with FSV; restart once FSV deficiency is corrected and maintained. Elderly (≥65yrs), ALGS or PFIC with clinically significant portal hypertension or with decompensated cirrhosis: not established. Pregnancy. Nursing mothers.

Livmarli Pharmacokinetics

Absorption

Maralixibat is minimally absorbed and plasma concentrations are often below the limit of quantification (0.25 ng/mL) after single or multiple doses at recommended doses. Following a single oral administration of maralixibat 30, 45, and 100 mg liquid formulation under fasted condition, AUClast and Cmax increased in a dose-dependent manner with increase of 4.6-and 2.4-fold, respectively, following a 3.3-fold dose increase from 30–100 mg.

Effect of Food: Concomitant administration of a high-fat meal with a single oral dose of maralixibat decreased both the rate and extent of absorption. AUC and Cmax of maralixibat values in the fed state were 64.8% to 85.8% lower relative to oral administration of 30 mg in fasted conditions.

Distribution

Plasma protein bound: 91%.

Elimination

Fecal (73%), renal (0.066%). Half-life: 1.6 hours.

Livmarli Interactions

Interactions

Administer bile acid binding resins (eg, cholestyramine, colesevelam, colestipol) at least 4hrs before or 4hrs after. Concomitant OATP2B1 substrates (eg, statins); monitor as needed.

Livmarli Adverse Reactions

Adverse Reactions

Diarrhea, abdominal pain, vomiting, fat-soluble vitamin deficiency, liver test abnormalities, GI bleeding, bone fractures, hematochezia.

Livmarli Clinical Trials

See Literature

Livmarli Note

Not Applicable

Livmarli Patient Counseling

See Literature

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