Indication: Moboxen (Mobocertinib Succinate) is approved for treating adult patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) containing epidermal growth factor receptor (EGFR) exon 20 insertion mutations, who have undergone prior platinum-based chemotherapy.

Pharmacology: Moboxen functions as an oral kinase inhibitor, specifically targeting EGFR exon 20 insertion mutations. By blocking these mutations, moboxen interrupts the signaling pathways crucial for tumor growth, proliferation, and survival, thereby demonstrating its anti-cancer properties.

Dosage and Administration: The suggested dosage of moboxen is 160 mg orally once daily on an empty stomach (at least 1 hour before or 2 hours after eating). Tablets should be swallowed whole with water and should not be crushed, split, or chewed. Adjustments in dosage might be necessary based on individual patient characteristics and tolerability.

Interactions: Moboxen might interact with medications metabolized by cytochrome P450 (CYP) enzymes, especially CYP3A4 and CYP2C8. Concurrent use with potent CYP3A4 inhibitors could elevate moboxen levels, while strong CYP3A4 inducers might reduce its concentrations. Caution is advised when combining moboxen with drugs influencing these metabolic pathways.

Side Effects: Typical adverse effects of moboxen may encompass diarrhea, rash, nausea, fatigue, vomiting, reduced appetite, elevated liver enzymes, cough, and shortness of breath. Severe reactions could include interstitial lung disease/pneumonitis, hepatotoxicity, QT interval prolongation, and potential harm to the fetus.

Precautions and Warnings: Regular monitoring for signs of interstitial lung disease/pneumonitis, hepatotoxicity, and QT interval prolongation is recommended for patients on moboxen. Treatment should be halted if these adverse reactions arise. Moboxen may pose risks to the fetus and should be avoided during pregnancy. Women capable of reproduction should employ effective contraception during treatment and for at least one week following the last dose.

Overdose Effect: In instances of overdose, patients might experience intensified adverse reactions such as diarrhea, rash, nausea, vomiting, and hepatotoxicity. Management typically involves supportive measures and symptom-based treatment. No specific antidote exists for moboxen overdose, necessitating prompt medical attention if overdose is suspected.