• Monique P Curran.
• Adis, a Wolters Kluwer Business, Auckland, New Zealand. demail@adis.co.nz
• Paediatr Drugs. 2012 Feb 1; 14 (1): 51-60.

AbstractEverolimus is an orally administered inhibitor of the mammalian target of rapamycin (mTOR). Everolimus (starting dosage 3.0 mg/m(2)) was associated with a significant reduction in the volume of the largest subependymal giant cell astrocytoma (SEGA) in 28 patients aged ≥3 years with tuberous sclerosis complex (TSC) in a phase II trial (C2485). At 6 months, 32% of patients treated with everolimus had a ≥50% reduction in the volume of their largest SEGA lesion (assessed via an independent central radiology review); 75% had a ≥30% reduction. No patients developed new lesions. During the extension phase of this trial (median duration 34 months), the reduction in SEGA volume was maintained, with no everolimus recipient requiring surgery or other therapy for SEGA or hydrocephalus. In a phase III trial (EXIST-1) in 117 patients with SEGA associated with TSC, 35% of everolimus recipients (starting dosage 4.5 mg/m(2)) versus none of the placebo recipients (p < 0.0001) had an overall response (a reduction in the sum of all target SEGA volumes of ≥50% relative to baseline, nonworsening of non-target SEGA lesions, no new SEGA lesions, and no new/worsening hydrocephalus). Everolimus was generally well tolerated in patients with SEGA associated with TSC; most drug-related adverse reactions were mild to moderate in severity.

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