Glucocorticoids, Immunotherapy and Radiosurgery for Brain Metastases

  • STATUS
    Recruiting
  • End date
    Oct 1, 2023
  • participants needed
    200
  • sponsor
    Medical University of Vienna
Updated on 27 February 2022
cancer
breast cancer
lung cancer
metastasis
stereotactic radiosurgery
targeted therapy
whole-brain radiotherapy

Summary

Background. Brain metastases are the most common intracranial tumor and occur in 20-40% of all oncological patients. The most common primary cancer in brain metastases is lung cancer, followed by melanoma, breast cancer, renal cancer and colorectal cancer. The incidence of brain metastases has been increasing but the occurrence of brain metastases is still associated with high morbidity and poor prognosis. The main treatment methods are stereotactic radiosurgery (SRS), microsurgical resection and whole brain irradiation (WBRT). The stereotactic Gamma Knife Radiosurgery (GKRS) is a non-invasive method, applying high dose radiation into an exact defined volume within the cranium, and thereby associated with significantly decreased neurotoxicity. It is the only treatment method for multiple disseminated and thereby non-resectable brain metastases. A novel treatment method of brain metastases is the combination of GKRS and systematic immunotherapy (IT), targeted therapy (TT) or chemotherapy, which showed significant improvements in survival. Furthermore, patients with brain metastases often develop cerebral edema, which is commonly treated with glucocorticoids to relieve the symptoms and decrease the fluid accumulation, but the long-term use was shown to be unfavorable due to various side effects. One of the potentially concerning side effect of glucocorticoids is the immunosuppressive properties. This raises the question of whether glucocorticoids might influence the effect of immunotherapy.

Aim. The aim of the study is to evaluate if the use of glucocorticoids before, during and after treatment with gamma knife radiosurgery and immunotherapy effect the overall survival in patients with brain metastases, in contrast to patients undergoing gamma knife radiosurgery and immunotherapy alone. In addition, the effect of glucocorticoids on progression-free survival and clinical outcome will be evaluated. For the evaluation of the modern oncological treatment, patients with gamma knife radiosurgery, receiving immunotherapy, will be compared to patients not receiving immunotherapy.

Patients and methods. The investigators plan to conduct a observational prospective preliminary study including about 200 radiosurgically treated patients with brain metastases. Patients will be included to our study, if they were diagnosed with one of two most common primary cancers (lung cancer or melanoma) and were treated with at least one Gamma Knife radiosurgical treatment for at least one brain metastasis. For the outcome evaluation of the different treatment options, a comprehensive database will be established. The study participations will not interfere with any clincally indicated therapeutic decisions and the study participants will not be exposed to any additional risks.

Details
Condition Brain Metastases
Treatment Glucocorticoids
Clinical Study IdentifierNCT04042220
SponsorMedical University of Vienna
Last Modified on27 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Patients, who were treated with Gamma Knife Radiosurgery for at least one or more brain metastases and diagnosed with one of two most common primary cancers (lung cancer or melanoma)
Patients over 18 years and under 90 years
Written, signed informed consent for study particaption after study explanation

Exclusion Criteria

Patients under 18 years
Patients over 90 years
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