Generic Name and Formulations:
Afatinib 20mg, 30mg, 40mg; tabs.
Boehringer Ingelheim Pharmaceuticals
Indications for GILOTRIF:
First-line treatment of patients with metastatic non-small cell lung cancer (NSCLC) whose tumors have non-resistant epidermal growth factor receptor (EGFR) mutations as detected by an FDA-approved test. Limitations of use: safety and efficacy have not been established in patients whose tumors have resistant EGFR mutations. Treatment of patients with metastatic squamous NSCLC progressing after platinum-based chemotherapy.
Take on an empty stomach at least 1 hr before or 2 hrs after a meal. 40mg once daily until disease progression or not tolerated. Severe renal impairment (CrCl 15–29mL/min): 30mg once daily. Concomitant P-gp inhibitors: reduce afatinib daily dose by 10mg if not tolerated; resume previous dose after discontinuing the inhibitor. Concomitant P-gp inducers: increase afatinib daily dose by 10mg as tolerated; resume previous dose 2–3 days after discontinuing the inducer. Dose modifications: see full labeling.
Permanently discontinue for life-threatening bullous, blistering, or exfoliative skin lesions, confirmed interstitial lung disease (ILD), severe drug-induced hepatic impairment, persistent ulcerative keratitis, symptomatic left ventricular dysfunction, or severe/intolerable adverse reactions (at dose 20mg/day). Withhold for prolonged diarrhea Grade ≥2 lasting for ≥2 consecutive days while taking antidiarrheal, prolonged cutaneous reaction Grade ≥2 (lasting >7 days) or intolerable, during evaluation of suspected ILD, renal dysfunction Grade ≥2, or worsening liver function. History of keratitis, ulcerative keratitis, or severe dry eye. Obtain LFTs periodically during treatment. Severe renal or hepatic impairment; monitor and adjust dose (see Adults). Embryo-fetal toxicity. Pregnancy (avoid). Females of reproductive potential should use effective contraception during therapy and for at least 2 weeks after final dose. Nursing mothers: not recommended (during and for 2 weeks after final dose).
Tyrosine kinase inhibitor.
See Adults. Potentiated by P-gp inhibitors (eg, ritonavir, cyclosporine A, ketoconazole, itraconazole, erythromycin, verapamil, quinidine, tacrolimus, nelfinavir, saquinavir, amiodarone). Antagonized by P-gp inducers (eg, rifampicin, carbamazepine, phenytoin, phenobarbital, St. John’s wort).
Diarrhea, rash/acneiform dermatitis, stomatitis, paronychia, dry skin, decreased appetite, nausea, vomiting, pruritus; bullous/exfoliative skin disorders, ILD, hepatotoxicity, keratitis.
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