Recurrence is not uncommon in both benign and malignant childhood brain tumors and may develop many years after initial treatment. For ependymoma, late recurrence beyond 10 to 15 years has been reported.[2,3] Disease generally recurs at the primary tumor site, even in children with malignant ependymomas.[4,5] Systemic relapse is extremely rare. At time of relapse, a complete evaluation for extent of recurrence is indicated for all patients. The need for surgical intervention must be individualized on the basis of the extent of the tumor, the length of time between initial treatment and the reappearance of the recurrent lesion, and the clinical picture. Patients with recurrent ependymomas who have not previously received radiation therapy and/or chemotherapy should be considered for treatment with these modalities.[Level of evidence: 3iiiB] In addition, patients may be candidates for focal retreatment with various radiation modalities, including stereotactic radiosurgery.[7,8][Level of evidence: 3iiiA]; [9,10][Level of evidence: 3iiiDi] Active agents include cyclophosphamide, cisplatin, carboplatin, lomustine, and etoposide. Regardless of treatment strategy, the prognosis for patients with recurrence is poor. Entry into studies of novel therapeutic approaches should be considered.
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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.
Current Clinical Trials
Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with recurrent childhood ependymoma. 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.
Zacharoulis S, Ashley S, Moreno L, et al.: Treatment and outcome of children with relapsed ependymoma: a multi-institutional retrospective analysis. Childs Nerv Syst 26 (7): 905-11, 2010.
Pollack IF, Gerszten PC, Martinez AJ, et al.: Intracranial ependymomas of childhood: long-term outcome and prognostic factors. Neurosurgery 37 (4): 655-66; discussion 666-7, 1995.
Vanuytsel LJ, Bessell EM, Ashley SE, et al.: Intracranial ependymoma: long-term results of a policy of surgery and radiotherapy. Int J Radiat Oncol Biol Phys 23 (2): 313-9, 1992.
Goldwein JW, Corn BW, Finlay JL, et al.: Is craniospinal irradiation required to cure children with malignant (anaplastic) intracranial ependymomas? Cancer 67 (11): 2766-71, 1991.
Merchant TE, Haida T, Wang MH, et al.: Anaplastic ependymoma: treatment of pediatric patients with or without craniospinal radiation therapy. J Neurosurg 86 (6): 943-9, 1997.
Messahel B, Ashley S, Saran F, et al.: Relapsed intracranial ependymoma in children in the UK: patterns of relapse, survival and therapeutic outcome. Eur J Cancer 45 (10): 1815-23, 2009.
Kano H, Yang HC, Kondziolka D, et al.: Stereotactic radiosurgery for pediatric recurrent intracranial ependymomas. J Neurosurg Pediatr 6 (5): 417-23, 2010.
Bouffet E, Hawkins CE, Ballourah W, et al.: Survival benefit for pediatric patients with recurrent ependymoma treated with reirradiation. Int J Radiat Oncol Biol Phys 83 (5): 1541-8, 2012.
Merchant TE, Boop FA, Kun LE, et al.: A retrospective study of surgery and reirradiation for recurrent ependymoma. Int J Radiat Oncol Biol Phys 71 (1): 87-97, 2008.
Kano H, Niranjan A, Kondziolka D, et al.: Outcome predictors for intracranial ependymoma radiosurgery. Neurosurgery 64 (2): 279-87; discussion 287-8, 2009.
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September 04, 2014
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