ions (5.9) and Drug Interactions (7.2)].
St. John’s Wort (Hypericum perforatum) may decrease everolimus exposure unpredictably and should be avoided.
2.3 Recommended Dose in SEGA with TSC
The recommended starting dose is 4.5 mg/m2, once daily. The recommended starting dose for patients with severe hepatic impairment (Child-Pugh class C) or requiring moderate CYP3A4/PgP inhibitors is 2.5 mg/m2, once daily [see Dosage and Administration (2.5)]. The recommended starting dose for patients requiring a concomitant strong CYP3A4 inducer is 9 mg/m2, once daily [see Dosage and Administration (2.5)]. Round dose to the nearest strength of either AFINITOR Tablets or AFINITOR DISPERZ.
Do not combine AFINITOR Tablets and AFINITOR DISPERZ to achieve the desired total dose.
Use therapeutic drug monitoring to guide subsequent dosing [see Dosage and Administration (2.4)]. Adjust dose at 2 week intervals as needed to achieve and maintain trough concentrations of 5 to 15 ng/mL [see Dosage and Administration (2.4, 2.5)].
Continue treatment until disease progression or unacceptable toxicity occurs. The optimal duration of therapy is unknown.
2.4 Therapeutic Drug Monitoring in SEGA with TSC
Monitor everolimus whole blood trough levels routinely in all patients. When possible, use the same assay and laboratory for therapeutic drug monitoring throughout treatment.
Assess trough concentrations approximately 2 weeks after initiation of treatment, a change in dose, a change in co-administration of CYP3A4/PgP inducers and/or inhibitors, a change in hepatic function, or a change in dosage form between AFINITOR Tablets and AFINITOR DISPERZ. Once a stable dose is attained, monitor trough concentrations every 3 to 6 months in patients with changing body surface area or every 6 to 12 months in patients with stable body surface area for the duration of treatment.
Titrate the dose to attain trough concentrations of 5 to 15 ng/mL.
•For trough concentrations less than 5 ng/mL, increase the daily dose by 2.5 mg (in patients taking AFINITOR Tablets) or 2 mg (in patients taking AFINITOR DISPERZ).
•For trough concentrations greater than 15 ng/mL, reduce the daily dose by 2.5 mg (in patients taking AFINITOR Tablets) or 2 mg (in patients taking AFINITOR DISPERZ).
•If dose reduction is required for patients receiving the lowest available strength, administer every other day.
2.5 Dose Modifications in SEGA with TSC
Adverse Reactions
Temporarily interrupt or permanently discontinue AFINITOR Tablets or AFINITOR DISPERZ for severe or intolerable adverse reactions. If dose reduction is required when reinitiating therapy, reduce the dose by approximately 50% [see Dosage and Administration (2.2) and Warnings and Precautions (5)]. If dose reduction is required for patients receiving the lowest available strength, administer every other day.
Hepatic Impairment
•Reduce the starting dose of AFINITOR Tablets or AFINITOR DISPERZ by approximately 50% in patients with SEGA who have severe hepatic impairment (Child-Pugh class C) [see Dosage and Administration (2.3)]. Adjustment to the starting dose for patients with SEGA who have mild (Child-Pugh class A) or moderate (Child-Pugh class B) hepatic impairment may not be needed. Subsequent dosing should be based on therapeutic drug monitoring.
•Assess everolimus trough concentrations appro |
