74 The effect of everolimus on renal angiomyolipoma in patients with tuberous sclerosis complex being treated for subependymal giant cell astrocytoma

74 The effect of everolimus on renal angiomyolipoma in patients with tuberous sclerosis complex being treated for subependymal giant cell astrocytoma

74 - The effect of everolimus on renal angiomyolipoma in patients with tuberous sclerosis... Page 1 of 2 e74 The effect of everolimus on renal angiom...

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74 - The effect of everolimus on renal angiomyolipoma in patients with tuberous sclerosis... Page 1 of 2

e74 The effect of everolimus on renal angiomyolipoma in patients with tuberous sclerosis complex being treated for subependymal giant cell astrocytoma 1

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Jozwiak S. , Belousova E. , Kingswood C. , Frost M. , Kuperman R. , 6

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Bebin M. , Korf B. , Flamini R. , Kohrman M. , Sparagana S. , Wu 11

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J. , Sahmoud T. , Shah G. , Franz D. 1

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The Children's Memorial Health Institute of Warsaw, Dept. of Child 2

Neurology, Warsaw, Poland, Moscow Research Institute of Pediatrics & Pediatric Surgery, , Moscow, Russia,

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Royal Sussex County 4

Hospital , Sussex Renal Unit, Brighton, United Kingdom, Minnesota Epilepsy Group, , St. Paul, Minnesota, United States of America, 5

Children's Hospital and Research Center Oakland, Dept. of 6

Neurology, Oakland, California, United States of America, University of Alabama School of Medicine, Dept. of Neurology, Birmingham, 7

Alabama, United States of America, University of Alabama at Birmingham, Dept. of Genetics, Birmingham, Alabama, United States of America,

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Children’s Healthcare of Atlanta, , Atlanta, Georgia, 9

United States of America, University of Chicago and Comer Children’s Hospital, , Chicago, Illinois, United States of America, 10

Texas Scottish Rite Hospital For Children, , Dallas, Texas, United 11

Mattel Children’s Hospital at UCLA, Dept. of States of America, Pediatric Neurology, Los Angeles, California, United States of America, 12

Novartis Pharmaceuticals Corporation, , Florham Park, New Jersey, 13

United States of America, Cincinnati Children's Hospital Medical Center, Dept. of Pediatrics and Neurology, Cincinnati, Ohio, United States of America INTRODUCTION & OBJECTIVES: To evaluate the activity of oral

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4/7/2012

74 - The effect of everolimus on renal angiomyolipoma in patients with tuberous sclerosis... Page 2 of 2

e74a everolimus, an mTOR inhibitor, in the treatment of angiomyolipoma (AML) lesions in patients with subependymal giant cell astrocytoma (SEGA) associated with tuberous sclerosis complex (TSC). MATERIAL & METHODS: A prospective, double-blind, randomized, placebo-controlled, phase 3 study, EXIST-1 (NCT00789828), examined the effects of everolimus in patients with SEGA associated with TSC. Patients with serial SEGA growth from prebaseline to baseline scans were randomized in a 2:1 scheme to receive everolimus (n=78) or placebo (n=39) stratified by use of enzymeinducing anti-epileptic drugs. The starting dose of everolimus was 4.5 2

mg/m /day and was adjusted to a trough level of 5-15 ng/mL based on patient tolerability. Exploratory analysis of AML response rates was performed in patients (n=44) with >1 target baseline AML lesion with longest diameter >1.0 cm. AML response rate, defined as the proportion of patients with confirmed AML response (reduction in total target AML volume >50% from baseline), was assessed by kidney CT or MRI screening at baseline, 12, 24, and 48 weeks, and then annually. RESULTS: The AML response rate was 53.3% (16/30) and 0% (0/14) for everolimus- and placebo-treated patients, respectively. AML reductions >50% were seen only in everolimus-treated patients (56.5%, 78.3%, 80%) compared with placebo-treated patients (0% at each time point) at week 12, 24, and 48, respectively. Greater percentages of everolimus-treated patients had AML reductions >30% at these same time points (82.6%, 100%, 100% vs. 8.3%, 18.2%, 16.7% for everolimus- and placebo-treated patients, respectively). CONCLUSIONS: Everolimus therapy showed efficacy in reducing AML lesion volume in patients with SEGA associated with TSC who also presented with AML. It may offer a pharmacological treatment option for patients with TSC and concomitant AML and SEGA.

file://F:\RamShankar\April\04-05-12\Cip\Sour\74.html

4/7/2012