Glioblastoma (GBM)
Conditions
Brief summary
In modern practice a trimodality treatment has emerged as standard of care for histologically confirmed glioblastoma. We hypothesize that the additional vaccination against herpes zoster, after surgical resection followed by irradiation therapy and chemotherapy of patients with glioblastoma will lead to a superior local control, overall and progression free survival. In an additional experimental setting based on patient preference the immunological effectiveness of the adoptive transfer of autologous polyclonal cytomegalovirus (CMV) specific T cells will be examined.
Detailed description
This multicenter study investigates novel immunomodulatory strategies in patients with histologically confirmed glioblastoma undergoing microsurgical resection at initial diagnosis. In the randomized intervention arm, patients receive an EMA-approved, inactivated herpes zoster vaccine postoperatively, followed by standard radiotherapy or radiochemotherapy according to ESTRO/EANO guidelines. In a patient-preference experimental arm, the same regimen is combined with autologous CMV-specific T-cell adoptive transfer. The control group undergoes neurosurgical resection and standard-of-care radiotherapy, with or without temozolomide, without additional herpes zoster vaccination or CMV-specific T-cell therapy. Primary endpoint is overall survival (OS), while secondary endpoints include progression-free survival (PFS) and local tumor control, immunological response, safety, and tolerability. Exploratory endpoints incorporate patient-reported outcome measures (PROMs), assessing quality of life, cognitive function, and treatment-related symptoms. Interventions are delivered from surgical resection through completion of radiochemotherapy. We hypothesize that herpes zoster vaccination will improve survival and local tumor control, while adoptive CMV-specific T-cell therapy will provide additional immunotherapeutic benefit in this refractory glioblastoma population.
Interventions
Based on patient-preference patients receive autologous CMV-specific T-cells additionally to vaccination contra herpes zoster after completion of radio(chemo-)therapy. Patients included in the experimental arm shall be HLA typed. Up to 6 intravenous infusions of in vitro-expanded T cells at a dose of 2 × 107 cells/m2 body surface area every 2 to 4 weeks shall be administered after clinical assessment. Patients shall continue standard-of-care treatment with temozolomide if indicated. Where possible, administration of autologous T-cells shall be scheduled to fall between chemotherapy treatment weeks to avoid concurrent infusions
Standard of care treatment without additional vaccination
Sponsors
Study design
Eligibility
Inclusion criteria
Subjects must meet all of the following inclusion criteria to be eligible for enrolment into the trial: * At least 18 years of age * Written informed consent of the subject * Life expectancy at least 3 months * Participants of child-bearing age must use effective contraception * Indication for definitive radiotherapy of glioblastoma or adjuvant radiation therapy of glioblastoma resection cavity according to interdisciplinary tumor board consensus and after radiation oncologists evaluation * Histopathologically proven glioblastoma * Incorporation of pre-neurochirurgical /-treatment PET/CT or/ and PET/MRI findings into the radiation therapy plan if patient undergoes PET/CT or/ and PET/MRI
Exclusion criteria
Subjects will not be included in the study if any of the following criteria apply. General
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overall Survival | Overall survival defined as time from neurosurgical resection to death of any cause. Study time per subject from enrollment through the end of treatment after a maximum of 12 months (provided that additional CTx consolidation therapy is administered) |
| Overall survival | From enrollment through the end of treatment after a maximum of 12 months (provided that additional CTx consolidation therapy is administered) |