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When cancer spreads to the brain, doctors often use a precise type of radiation therapy called stereotactic radiosurgery (SRS) to treat these tumors. This treatment can effectively control brain tumors while helping protect healthy brain tissue. However, when brain tumors or the areas where tumors were surgically removed are larger, treatment outcomes in terms of side effects and tumour control can become worse. Specifically, standard SRS on larger areas can have lower tumour control and higher risk of side effects, particularly a condition called radiation necrosis, which can cause swelling and damage in nearby healthy brain tissue. Currently at Sunnybrook, large brain tumors...
Glioblastoma is the most aggressive primary brain tumor due to its highly infiltrative growth pattern, strong proliferative potential, and multiple mechanisms of resistance to treatment . Based on results from multicenter studies, English oncologist Roger Stupp proposed in 2005 a new treatment approach involving initial tumor resection followed by conformal external beam radiation therapy combined with temozolomide, plus subsequent cycles of monochemotherapy with this drug. This approach extended median survival by only 2 months, yet remains the standard of care due to lack of better alternatives. Consequently, recent protocols for malignant CNS tumors in Russia and...
This cluster-randomized comparative effectiveness trial compares a technology-based supportive cancer care (SCC) approach with a redesigned team-based supportive cancer care (SCC) approach.
This study is designed to see if we can lower the chance of side effects from radiation in patients with breast, kidney, small cell lung cancer, non-small cell lung cancer or melanoma that has spread to the brain and who are also being treated with immunotherapy, specifically immune checkpoint inhibitor (ICI) therapy. This study will compare the usual care treatment of single fraction stereotactic radiosurgery (SSRS) given on one day versus fractionated stereotactic radiosurgery (FSRS), which is a lower dose of radiation given over a few days to determine if FSRS is better or worse at reducing side effects than usual care treatment.
This phase IV trial compares patient satisfaction with telehealth versus in-person neuro-oncology assessments among glioma patients receiving oral chemotherapy. Gliomas are the most common primary central nervous system cancer and are associated with a high symptom burden, such as drowsiness, fatigue, memory difficulty, and difficulty communicating. Care at a high volume center is associated with an overall survival benefit, however, many patients may have physical or financial difficulties preventing access to these centers. Telehealth visits use computers, cameras, videoconferencing, the internet, satellite, and wireless communications to deliver healthcare, while...
This phase III trial compares the usual treatment of surgery after stereotactic radiosurgery (SRS) to receiving SRS before surgery in treating patients with cancer that has spread to the brain (brain metastases). Stereotactic radiosurgery is a type of radiation therapy that delivers a high dose of radiation to target tumors and minimizes effect on normal surrounding brain tissue. The combination of surgery and radiation may stop the tumor from growing for a few months or longer and may reduce symptoms of brain metastases. This study investigates whether treating with SRS before surgery may be better than SRS after surgery in reducing the possibility of the tumor coming...
This is a multicenter, two-arm, open-label, randomized controlled phase III clinical trial to evaluate the efficacy and safety of tunlametinib capsule in comparison with the combination chemotherapy of investigator's choice in advanced melanoma patients with NRAS mutation who have received immunotherapy before. Subjects were stratified according to the baseline lactate dehydrogenase level and chemotherapy.
An international multi-centre, open, randomised, parallel-group phase II study comparing adjuvant treatment with 177Lu-DOTATATE to best supportive care in patients after complete surgical removal of neuroendocrine liver metastases. In this study, adjuvant treatment with 177Lu-DOTATATE will be compared with best supportive care in patients with well differentiated grade 1 or 2 neuroendocrine tumours in the stomach, pancreas or gut (gastro-entero-pancreatic NETs) who had their primary tumour already removed or in whom both primary and liver tumour metastases removal will take place simultaneously, including removal of perihilar lymph nodes will be eligible. The primary objective...
This prospective, single-center, double-blinded study investigates the biodistribution, dosimetry, safety, and diagnostic ability of Al18F-NOTA-LM3 in patients with well-differentiated neuroendocrine tumors. And compares the diagnostic ability of Al18F-NOTA-LM3 with 68Ga-DOTATATE PET/CT and 68Ga-NODAGA-LM3 PET/CT. Clinical management will also be compared using different imaging modalities.
This phase II trial compares the impact of subcutaneous (SC) nivolumab given in an in-home setting to an in-clinic setting on cancer care and quality of life. Currently, most drug-related cancer care is conducted in clinic type centers or hospitals which may isolate patients from family, friends and familiar surroundings for many hours per day. This separation adds to the physical, emotional, social, and financial burden for patients and their families. Traveling to and from medical facilities costs time, money, and effort and can be a disadvantage to patients living in rural areas, those with low incomes or poor access to transport. Studies have shown that cancer patients often...
