View clinical trials related to Astrocytoma.
Filter by:It is a single-center, prospective, observational, non-randomized study of newly diagnosed diffuse astrocytoma patients conducted in a tertiary hospital. The investigators conduct an eight-year follow-up, including patients' psychological stress, immune biomarker changes, quality of life, and disease progression of patients towards secondary glioma after the first definite diagnosis. In the first year after diagnosis, patients are followed up four times at 1 month, 3 months, 6 months, and 12 months. After that, patients are followed up semiannually. The study had two cohorts, a high-stress cohort and a low-stress cohort, which are grouped after initial recruitment. Both groups undergo total resection of tumors and received 3 months of standardized treatment with radiotherapy and chemotherapy. Neither participants nor doctors but the researcher can choose which group participants are in. No one knows if one study group is better or worse than the other.
This is an ongoing Phase 2, open-label, single-center, non-randomized study of sintilimab (one anti-PD-1 antibody same as nivolumab approved in China) plus bevacizumab administered in a low dosage schedule in adult (≥ 18 years) participants with a clinical relapse or circulating tumor DNA (ctDNA)-level relapse of Astrocytoma. This study has three non-comparative study groups. Cohort 1 and Cohort 2 will receive the same study drug sintilimab 200mg and bevacizumab 3mg/kg every 3 weeks. Cohort 3 will take only standard treatment. A stringent three-step non-randomized process will be used to assign participants to one of the study groups. Neither participants nor doctors but the researcher can choose which group participants are in. No one knows if one study group is better or worse than the other. 70 total participants are expected to participate in this study (25 participants in Cohort 1 and Cohort 2,20 participants in Cohort 3). Grouping process: After enrollment, under the standard of care, participants will receive regular tumor in situ fluid (fluid within the surgical cavity, TISF) sampling for ctDNA analysis and recceive regular MRI. The researcher will study the TISF ctDNA and imaging dynamics to determine whether the tumor reaches to ctDNA-level (Cohort 1) or clinical relapse (Cohort 2). At the first step, all timely identified as ctDNA-level relapse tumors will be assigned into the Cohort 1 and receive the study drug immediately, those failed to be timely identified will be assigned into the Cohort 2 and receive the study drug after the clinical relapse. At the second step, once Cohort 1 or Cohort 2 reaches the target number, the new participants will be all assigned into the other Cohort. In the third step, if no ctDNA-level or clinical relapse was observed within 60 months after surgery, patients were assigned to Cohort 3 and further analyzed for prognostic biomarkers compared with Cohort 1 and Cohort 2.
This early phase I trial tests the safety and reliability of an investigational imaging technique called quantitative oblique back illumination microscopy (qOBM) during brain surgery for detecting brain tumors and brain tumor margins in patients with glioblastoma, astrocytoma, or oligodendroglioma. Surgical margins refer to the edge or border of the tissue removed in cancer surgery. qOBM may be able to assess and reveal brain tumor surgical margins in a more safe and reliable manner.
This study is a clinical trial to assess the efficacy and confirm the safety of intratumoral inoculation of G207 (an experimental virus therapy) combined with a single 5 Gy dose of radiation in recurrent/progressive pediatric high-grade gliomas
The purpose of the study is to determine the safety and efficacy of intracranially implanted Carmustine in the treatment of patients with primary malignant glioma.