LUMATEPERONE
Clinical safety rating: caution
Comprehensive clinical and safety monograph for LUMATEPERONE (LUMATEPERONE).
Lumateperone is an atypical antipsychotic with a unique mechanism of action: it acts as a 5-HT2A receptor antagonist, a dopamine D2 receptor antagonist, and a serotonin reuptake inhibitor. It also modulates glutamate via enhanced AMPA and NMDA receptor activity.
| Metabolism | Primarily metabolized by CYP3A4 and to a lesser extent by CYP2C8 and CYP2D6; undergoes glucuronidation and oxidation; active metabolite is lumateperone N-desmethyl. |
| Excretion | Approximately 80% of the dose is excreted in feces (as unchanged drug and metabolites) and about 11% in urine. Less than 1% is excreted as unchanged lumateperone in urine. |
| Half-life | Terminal elimination half-life is approximately 13 hours in the plasma, supporting once-daily dosing. Steady state is reached within 5–7 days. |
| Protein binding | Approximately 97.4% bound to plasma proteins, primarily to albumin and alpha-1-acid glycoprotein. |
| Volume of Distribution | Apparent volume of distribution is about 4.7 L/kg (based on 60 kg), indicating extensive tissue distribution. |
| Bioavailability | Oral bioavailability is approximately 2–4% due to extensive first-pass metabolism. Food increases AUC by approximately 1.6-fold. |
| Onset of Action | Oral: Clinical effects are observed within 1–2 weeks of daily dosing, with some improvement noted as early as week 1 in clinical trials. |
| Duration of Action | Maintained over 24 hours with once-daily oral administration. The long half-life supports sustained therapeutic coverage. |
42 mg orally once daily, taken with food and at least 240 mL of water, with a titration schedule: 42 mg daily for 7 days, then 21 mg twice daily thereafter.
| Dosage form | CAPSULE |
| Renal impairment | No dose adjustment required for mild to moderate renal impairment (eGFR ≥30 mL/min). For severe renal impairment (eGFR 15-29 mL/min), dose reduction to 21 mg orally once daily. Not recommended in end-stage renal disease (eGFR <15 mL/min). |
| Liver impairment | Child-Pugh Class A: no adjustment. Child-Pugh Class B: reduce dose to 21 mg orally once daily. Child-Pugh Class C: not recommended. |
| Pediatric use | Safety and efficacy not established in pediatric patients; no approved dosing guidelines available. |
| Geriatric use | Use with caution due to increased sensitivity to hypotension and sedation. Initiate at 21 mg orally once daily for 7 days, then increase to 42 mg once daily if tolerated. Monitor for orthostatic hypotension and falls. |
| 1st trimester | Consult provider |
| 2nd trimester | Consult provider |
| 3rd trimester | Consult provider |
Clinical note
Comprehensive clinical and safety monograph for LUMATEPERONE (LUMATEPERONE).
| Breastfeeding | Excretion into breast milk is unknown; no available M/P ratio. Due to potential for adverse reactions (e.g., sedation, extrapyramidal effects) in breastfed infants, breastfeeding is not recommended during treatment. |
| Teratogenic Risk | Teratogenic risk is not established; animal studies show no evidence of harm at doses up to 10 times the maximum recommended human dose. However, human data are insufficient to rule out risk. First trimester: limited data, risk cannot be excluded. Second and third trimesters: antipsychotics may cause extrapyramidal symptoms or withdrawal in neonates. Risk-benefit assessment recommended. |
■ FDA Black Box Warning
Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Lumateperone is not approved for the treatment of patients with dementia-related psychosis.
| Serious Effects |
["Hypersensitivity to lumateperone or any components of the formulation"]
| Precautions | ["Cerebrovascular adverse reactions in elderly with dementia","Neuroleptic malignant syndrome","Tardive dyskinesia","Metabolic changes (hyperglycemia, dyslipidemia, weight gain)","Leukopenia and neutropenia","Orthostatic hypotension and syncope","Seizures","Potential for cognitive and motor impairment","QT prolongation"] |
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| Fetal Monitoring | Monitor for maternal adverse effects including extrapyramidal symptoms, metabolic changes (glucose, lipids), and weight gain. In neonates, monitor for extrapyramidal symptoms, hypertonia, hypotonia, respiratory distress, and feeding difficulties. |
| Fertility Effects | No human data; in animal studies, no adverse effects on fertility were observed. Potential for prolactin elevation may theoretically impair fertility, but clinical significance is unknown. |