Molecular Analysis of Samples From Patients With Diffuse Intrinsic Pontine Glioma and Brainstem Glioma

Обзор

The purpose of this study is to prospectively collect specimens from pediatric patients with diffuse intrinsic pontine glioma or brainstem glioma, either during therapy or at autopsy, in order to characterize the molecular abnormalities of this tumor.

Подробное описание

High grade diffuse intrinsic pontine glioma (DIPG) accounts for approximately 80% of pediatric brainstem tumors and 10% of pediatric brain tumors, and is the most lethal form of brainstem gliomas in children. There is currently no effective therapy to treat these tumors. We hypothesize that this tumor exhibits unique molecular abnormalities leading to altered RNA and protein expression. The aim of this trial is to collect specimens from pediatric patients with diffuse intrinsic pontine glioma including serum, cerebrospinal fluid, urine, brain tumor and other constitutional tissue, during therapy and/or at autopsy. Our goal is to study this tissue to characterize the genetic abnormalities that lead to tumor formation in order to identify key molecules as biomarkers which we can target to design and test new and more effective treatments.

Первичные конечные точки

• Genome-wide expression patterns of RNA in tumor samples, normal brainstem tissue and cerebrospinal fluid using Affymetrix gene expression profiling [Срок оценки: 5 years]
• Validation of results of the genome-wide analysis [Срок оценки: 5 years]
• Proteomic profiling of tumor, normal brainstem tissue and cerebrospinal fluid [Срок оценки: 5 years]
• Protein expression patterns as assessed by immunohistochemistry and western blot compared to normal brainstem tissue [Срок оценки: 5 years]
• Genome-wide analysis of tumor samples and normal brainstem tissue [Срок оценки: 5 years]
• In vitro and in vivo molecular analysis of collected samples [Срок оценки: 5 years]

Вторичные конечные точки (1)

• Assess aspects associated with specimen acquisition, including potential benefits and drawbacks [Срок оценки: 5 years]

Критерии участия

Критерии включения

• Patients of any age with clinical and radiologic diagnosis of diffuse intrinsic pontine glioma
• Patients with other high-grade gliomas originating in the brainstem
• Patients with focal gliomas (WHO grade I/II) of the brainstem

Критерии исключения

• Patients with any type of infiltrative low grade (WHO grade I and II) or high grade glioma (WHO grade III and IV) originating outside the brainstem
• Patients harboring primary brainstem tumors with other histologic diagnoses (e.g., PNET)

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения

Когортное

Центры проведения

США · 1 центр

• Children's National Medical Center — Washington D.C.

Публикации

• Becher OJ, Hambardzumyan D, Walker TR, Helmy K, Nazarian J, Albrecht S, Hiner RL, Gall S, Huse JT, Jabado N, MacDonald TJ, Holland EC. Preclinical evaluation of radiation and perifosine in a genetically and histologically accurate model of brainstem glioma. Cancer Res. 2010 Mar 15;70(6):2548-57. doi: 10.1158/0008-5472.CAN-09-2503. Epub 2010 Mar 2. PMID 20197468
• Panditharatna E, Yaeger K, Kilburn LB, Packer RJ, Nazarian J. Clinicopathology of diffuse intrinsic pontine glioma and its redefined genomic and epigenomic landscape. Cancer Genet. 2015 Jul-Aug;208(7-8):367-73. doi: 10.1016/j.cancergen.2015.04.008. Epub 2015 May 1. PMID 26206682
• Yadavilli S, Scafidi J, Becher OJ, Saratsis AM, Hiner RL, Kambhampati M, Mariarita S, MacDonald TJ, Codispoti KE, Magge SN, Jaiswal JK, Packer RJ, Nazarian J. The emerging role of NG2 in pediatric diffuse intrinsic pontine glioma. Oncotarget. 2015 May 20;6(14):12141-55. doi: 10.18632/oncotarget.3716. PMID 25987129
• Kambhampati M, Perez JP, Yadavilli S, Saratsis AM, Hill AD, Ho CY, Panditharatna E, Markel M, Packer RJ, Nazarian J. A standardized autopsy procurement allows for the comprehensive study of DIPG biology. Oncotarget. 2015 May 20;6(14):12740-7. doi: 10.18632/oncotarget.3374. PMID 25749048
• Kambhampati M, Panditharatna E, Yadavilli S, Saoud K, Lee S, Eze A, Almira-Suarez MI, Hancock L, Bonner ER, Gittens J, Stampar M, Gaonkar K, Resnick AC, Kline C, Ho CY, Waanders AJ, Georgescu MM, Rance NE, Kim Y, Johnson C, Rood BR, Kilburn LB, Hwang EI, Mueller S, Packer RJ, Bornhorst M, Nazarian J. Harmonization of postmortem donations for pediatric brain tumors and molecular characterization of PMID 32616776
• Ballester LY, Wang Z, Shandilya S, Miettinen M, Burger PC, Eberhart CG, Rodriguez FJ, Raabe E, Nazarian J, Warren K, Quezado MM. Morphologic characteristics and immunohistochemical profile of diffuse intrinsic pontine gliomas. Am J Surg Pathol. 2013 Sep;37(9):1357-64. doi: 10.1097/PAS.0b013e318294e817. PMID 24076776
• Saratsis AM, Yadavilli S, Magge S, Rood BR, Perez J, Hill DA, Hwang E, Kilburn L, Packer RJ, Nazarian J. Insights into pediatric diffuse intrinsic pontine glioma through proteomic analysis of cerebrospinal fluid. Neuro Oncol. 2012 May;14(5):547-60. doi: 10.1093/neuonc/nos067. Epub 2012 Apr 5. PMID 22492959
• Ahsan S, Raabe EH, Haffner MC, Vaghasia A, Warren KE, Quezado M, Ballester LY, Nazarian J, Eberhart CG, Rodriguez FJ. Increased 5-hydroxymethylcytosine and decreased 5-methylcytosine are indicators of global epigenetic dysregulation in diffuse intrinsic pontine glioma. Acta Neuropathol Commun. 2014 Jun 3;2:59. doi: 10.1186/2051-5960-2-59. PMID 24894482

Идентификаторы

NCT: NCT01106794 · DIPG-1

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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