Characterization of Circulating and Tumor-infiltrating Immune Cells in Malignant Brain Tumors

Официальное название

Immunophenotype Characterization of Circulating and Tumor Infiltrating Immune Cells in Malignant Brain Tumors.

Обзор

The goal of this observational study is to characterize the circulating leukocyte profile and the immune T cells distribution within the tumor in patients with malignant brain tumors and to correlate these findings with the oncological outcome. Participants will be subjected to blood sampling before surgery and for 12 months of follow-up. Additional sampling and analysis will be performed on tumor samples.

Подробное описание

High-grade gliomas are the most frequent type of primary brain tumor in adults, and among them, glioblastoma multiforme (GBM) is the most malignant with an associated poor prognosis. Although significant advances have been achieved in GBM biology comprehension, patients' life expectancy is still limited to 18 months.

Brain metastases (BM) are the most frequent neoplasm in the CNS; it is estimated that up to 14% of all newly diagnosed cancers will soon or later metastasize into the brain.

A variety of mechanisms to escape a tumor-specific T cell-mediated immune response have been identified in glioma and other cancer entities.

This project is an observational, prospective, monocentric study on patients candidates for neurosurgical procedures for brain malignant tumors with additional collection of biological material. With the present study, we aim to characterize the phenotype of both circulating- and tumor-infiltrating- immune cells at the diagnosis and their changes during disease progression and after treatment in primary and secondary brain tumors.

Samples will be taken at baseline (before surgery) and at time-points: 3, 6, 9, 12 months

Вмешательства

• Диагностический тест Circulating leukocytes immunophenotype
  Blood samples will be tested with flow cytometry in order to characterize leukocyte subpopulations and to evaluate the circulating immunophenotype
• Диагностический тест Tumor sampling
  Immunohistochemical analysis will be performed on tumor samples in order to characterize immune T cells distribution within the tumor.

Первичные конечные точки

• Baseline leucocytes count [Срок оценки: Baseline]
• Baseline leucocytes immunophenotype [Срок оценки: Baseline]
• Baseline tumor-infiltrating lymphocytes count [Срок оценки: After surgery (tumor sampling)]
• Baseline tumor-infiltrating leucocytes immunophenotype [Срок оценки: After surgery (tumor sampling)]

Критерии участия

Критерии включения

• Adult patients (≥18 years)
• Able to express informed consent
• With primary or secondary malignant brain tumor
• Requiring neurosurgical treatment (radiosurgery, stereotactic biopsy, surgery)

Критерии исключения

• Patients who do not meet inclusion criteria.

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

Здоровые добровольцы: Нет

Дизайн исследования

Модель наблюдения

Когортное

Центры проведения

Италия · 1 центр

• IRCCS San Raffaele Scientific Institute — Milan

Публикации

• Olar A, Aldape KD. Using the molecular classification of glioblastoma to inform personalized treatment. J Pathol. 2014 Jan;232(2):165-77. doi: 10.1002/path.4282. PMID 24114756
• Stupp R, Mason WP, van den Bent MJ, Weller M, Fisher B, Taphoorn MJ, Belanger K, Brandes AA, Marosi C, Bogdahn U, Curschmann J, Janzer RC, Ludwin SK, Gorlia T, Allgeier A, Lacombe D, Cairncross JG, Eisenhauer E, Mirimanoff RO; European Organisation for Research and Treatment of Cancer Brain Tumor and Radiotherapy Groups; National Cancer Institute of Canada Clinical Trials Group. Radiotherapy plus PMID 15758009
• Wang W, Shi G, Ma B, Hao X, Dong X, Zhang B. Chemotherapy for Adults with Malignant Glioma: A Systematic Review and Network Meta-Analysis. Turk Neurosurg. 2017;27(2):174-181. doi: 10.5137/1019-5149.JTN.15462-15.0. PMID 27337236
• Barnholtz-Sloan JS, Sloan AE, Davis FG, Vigneau FD, Lai P, Sawaya RE. Incidence proportions of brain metastases in patients diagnosed (1973 to 2001) in the Metropolitan Detroit Cancer Surveillance System. J Clin Oncol. 2004 Jul 15;22(14):2865-72. doi: 10.1200/JCO.2004.12.149. PMID 15254054
• Lowery FJ, Yu D. Brain metastasis: Unique challenges and open opportunities. Biochim Biophys Acta Rev Cancer. 2017 Jan;1867(1):49-57. doi: 10.1016/j.bbcan.2016.12.001. Epub 2016 Dec 6. PMID 27939792
• Kromer C, Xu J, Ostrom QT, Gittleman H, Kruchko C, Sawaya R, Barnholtz-Sloan JS. Estimating the annual frequency of synchronous brain metastasis in the United States 2010-2013: a population-based study. J Neurooncol. 2017 Aug;134(1):55-64. doi: 10.1007/s11060-017-2516-7. Epub 2017 May 31. PMID 28567587
• Kim YH, Jung TY, Jung S, Jang WY, Moon KS, Kim IY, Lee MC, Lee JJ. Tumour-infiltrating T-cell subpopulations in glioblastomas. Br J Neurosurg. 2012 Feb;26(1):21-7. doi: 10.3109/02688697.2011.584986. Epub 2011 Jun 27. PMID 21707245
• Lohr J, Ratliff T, Huppertz A, Ge Y, Dictus C, Ahmadi R, Grau S, Hiraoka N, Eckstein V, Ecker RC, Korff T, von Deimling A, Unterberg A, Beckhove P, Herold-Mende C. Effector T-cell infiltration positively impacts survival of glioblastoma patients and is impaired by tumor-derived TGF-beta. Clin Cancer Res. 2011 Jul 1;17(13):4296-308. doi: 10.1158/1078-0432.CCR-10-2557. Epub 2011 Apr 8. PMID 21478334

Идентификаторы

NCT: NCT05831631 · NCH 02-2022

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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