HEPATOLITE
Clinical safety rating: caution
Comprehensive clinical and safety monograph for HEPATOLITE (HEPATOLITE).
HEPATOLITE is a synthetic hepatocyte growth factor analog that binds to c-Met receptors on hepatocytes, activating MAPK/ERK and PI3K/Akt pathways, promoting hepatocyte proliferation and liver regeneration.
| Metabolism | Primarily hepatic via CYP3A4 and CYP2E1; undergoes conjugation with glutathione. |
| Excretion | Primarily renal excretion (unchanged drug and major metabolite) accounting for ~70% of elimination; biliary/fecal excretion accounts for ~25%; remainder undergoes minor metabolic clearance. |
| Half-life | Terminal elimination half-life is 2.5–4 hours in patients with normal renal function; prolonged to 12–24 hours in severe renal impairment (CrCl <30 mL/min). |
| Protein binding | 95% bound primarily to albumin; also binds extensively to α1-acid glycoprotein. |
| Volume of Distribution | 0.15–0.2 L/kg; consistent with distribution primarily into extracellular fluid; low tissue binding. |
| Bioavailability | Oral: 60–80% (first-pass hepatic metabolism reduces bioavailability); IM: nearly complete (~90%). |
| Onset of Action | IV: rapid, within 5–15 minutes; oral: 30–60 minutes after administration. |
| Duration of Action | 3–4 hours for IV; 4–6 hours for oral; clinical effect corresponds to plasma levels above 0.5 µg/mL. |
Intravenous: 50 mg/kg (ideal body weight) over 60 minutes once daily. Oral: 1000 mg three times daily.
| Dosage form | INJECTABLE |
| Renal impairment | GFR >60 mL/min: No adjustment. GFR 30-60 mL/min: 50% of standard dose. GFR 15-29 mL/min: 25% of standard dose. GFR <15 mL/min or hemodialysis: 10% of standard dose post-dialysis. |
| Liver impairment | Child-Pugh A: No adjustment. Child-Pugh B: 50% of standard dose. Child-Pugh C: Contraindicated. |
| Pediatric use | Intravenous: 1-3 mg/kg/dose (max 50 mg/kg) over 60 minutes every 24 hours. Oral: 10-20 mg/kg/dose three times daily (max 1000 mg/dose). |
| Geriatric use | Initiate at 50% of standard adult dose; titrate based on renal function and tolerability. Maximum dose 50 mg/kg intravenously or 1000 mg orally three times daily. |
| 1st trimester | Consult provider |
| 2nd trimester | Consult provider |
| 3rd trimester | Consult provider |
Clinical note
Comprehensive clinical and safety monograph for HEPATOLITE (HEPATOLITE).
| Breastfeeding | No data on excretion in human milk; M/P ratio unknown. Caution advised due to potential for adverse effects in nursing infants. |
| Teratogenic Risk | First trimester: No adequate human studies; animal studies not reported. Risk cannot be excluded. Second and third trimesters: No known fetal risks. Overall: FDA pregnancy category not assigned; use only if clearly needed. |
| Fetal Monitoring |
■ FDA Black Box Warning
None
| Serious Effects |
History of hepatocellular carcinoma; biliary tract obstruction; hypersensitivity to HEPATOLITE or excipients.
| Precautions | Risk of hepatocarcinogenesis due to mitogenic effects; monitor for liver tumors with ultrasound. Potential for cholestasis in patients with biliary obstruction. Avoid in severe hepatic impairment (Child-Pugh C). |
| Food/Dietary | Avoid grapefruit and grapefruit juice as they increase drug levels. Avoid high-fat meals within 2 hours of dosing as they reduce absorption. Limit vitamin K-rich foods (e.g., leafy greens) to maintain stable INR. |
| Clinical Pearls |
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| Monitor liver function tests (ALT, AST, bilirubin) and coagulation profile (PT/INR) periodically during therapy. |
| Fertility Effects | No known effects on fertility in humans; animal studies not available. |
| HEPATOLITE (hepatocyte growth factor analog) is used for acute-on-chronic liver failure. Monitor serum albumin and INR to gauge synthetic function. Adjust dose in renal impairment (CrCl <30 mL/min: reduce by 50%). Avoid concomitant use with direct thrombin inhibitors due to increased bleeding risk. |
| Patient Advice | Report any signs of bleeding such as easy bruising, black tarry stools, or blood in urine immediately. · Take exactly as prescribed; do not double doses if missed. · Avoid alcohol completely during treatment. · Inform all healthcare providers you are taking HEPATOLITE. · May cause dizziness; avoid driving until you know how it affects you. |