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Childhood Astrocytomas Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Treatment of Childhood Low-Grade Astrocytomas


Most children with tuberous sclerosis have a mutation in one of two tuberous sclerosis genes (TSC1/hamartin or TSC2/tuberin). Either of these mutations results in an overexpression of the mTOR complex 1. These children are at risk of developing subependymal giant cell astrocytomas (SEGA), in addition to cortical tubers and subependymal nodules. For children with symptomatic SEGAs, agents that inhibit mTOR (e.g., everolimus and sirolimus) have been shown in small series to cause significant reductions in the size of these tumors, often eliminating the need for surgery.[52][Level of evidence: 2C]; [53][Level of evidence: 3iiiC] A multicenter, phase III, placebo-controlled trial of 117 patients confirmed these earlier findings; 35% of the patients in the everolimus group had at least a 50% reduction in the size of the SEGA, versus no reduction in the placebo group.[54][Level of evidence: 1iDiv] Whether reduction in size of the mass is durable, obviating the need for future surgery, is currently unknown.

Treatment Options Under Clinical Evaluation

Early-phase therapeutic trials may be available for selected patients. These trials may be available via Children's Oncology Group phase I institutions, the Pediatric Brain Tumor Consortium, or other entities. Information about ongoing clinical trials is available from the NCI Web site.

Current Clinical Trials

Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with childhood low-grade untreated astrocytoma or other tumor of glial origin. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.

General information about clinical trials is also available from the NCI Web site.


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This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

WebMD Public Information from the National Cancer Institute

Last Updated: September 04, 2014
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