Therefore, we intend to conduct a phase II study to evaluate the efficacy of maintenance therapy with lenalidomide as the maintenance therapy for patients with PCNSL or PVRL who have achieved CR or partial response after HD-MTX-based induction therapy followed by reduced-dose WBRT.Twentypatients with PCNSL or PVRL will be recruited. The primary outcome is 2-year progression-free survival from the first date of reduced-dose WBRT. Besides, the safety and the incidence of cute and late neurotoxicity related to reduced-dose WBRT, the single nucleotide polymorphism assay,and the clinical applications of plasma and CSF circulating tumor...
Postoperative adjuvant radiotherapy is a key component of comprehensive treatment of meningioma. However, for atypical meningioma after total resection, there is still a huge controversy in patients who need adjuvant radiotherapy after surgery. Many scholars have focused on this problem and carried out some small-scale retrospective studies, but they have contradictory results. Some of the studies found that postoperative adjuvant radiotherapy could not improve the prognosis of patients, but was questioned because the sample size was too small, resulting in insignificant results, while other studies found that postoperative...
Prospective and randomized evaluate efficiency and safety of different treatment strategies for hypothalamus-invading pituitary adenomas (HIPA)
The goal of this phase II randomized clinical trial is to compare the safety and efficacy of Elemene plus Stupp Protocol (the new protocol) and Stupp Protocol alone (the standard protocol) in patients with newly-diagnosed glioblastomas (ndGBMs). The main questions to answer are: - Whether the new treatment protocol (Elemene plus Stupp Protocol) is clinically safe for ndGBM patients. - Whether the new treatment protocol (Elemene plus Stupp Protocol) brings better survival benefits for ndGBM patients compared to the standard-of-care Stupp Protocol. Study participants will be enrolled in 5 hospitals in China...
In previous single center study, both modified cap-assisted endoscopic mucosal resection (mEMR-C) and endoscopic submucosal dissection (ESD) were reported to be effective for the treatment of small rectal neuroendocrine tumors (NETs) and mEMR-C was inferior to ESD for the treatment of small rectal NETs (≤10 mm), as it has shorter operation times and lower hospitalization costs. However, a multicenter randomized controlled trial is needed to prove the universality and generality of these findings.
This is a phase II, open, single-center study to explore the efficacy and safety of Envafolimab combined with recombinant human endostatin, temozolomide and cisplatin in the treatment of mucosal melanin. At the same time, the tissue and peripheral blood samples of the patients were taken for the determination of PD-L1 expression, ctDNA and other biomarkers and the results were analyzed to find the predictive factors of prognosis or curative effect. Patients with advanced mucosal melanoma who met the inclusion criteria but did not meet the exclusion criteria were enrolled in this study and received 6 cycles of Envafolimab combined ...
This research study is being conducted to improve the quality of care of participants who have a diagnosis of gastrointestinal cancer (anal, colon, rectal, esophageal, stomach, small bowel, appendix, pancreas, gall bladder, liver, neuroendocrine tumor of gastrointestinal origin). This study has 3 components as follows- 1. Ensuring appropriate biomarker testing and evidence-based care: Biomarkers are molecules in the tumor or blood that indicate normal or abnormal processes in participant's body and may indicate an underlying condition or disease. Various molecules, such as DNA (genes), proteins, or...
This is a treatment clinical trial to assess the efficacy of ERC1671 in combination with bevacizumab and pembrolizumab in patients with GBM that has progressed following treatment with radiation and temozolomide. Patients will have surgery to collect the maximum amount of GBM tissue that can be reasonably collected. This tissue will be used to manufacturer ERC1671 for the patient. The patients will receive ERC1671 in combination with GM-CSF and cyclophosphamide, in combination with bevacizumab and pembrolizumab.
A study is being performed to observe whether a novel type of brain imaging using a technique called PET-MRI may provide useful information in the 'mapping' of adult primary brain tumours. It employs a radiolabelled molecule targeting a particular molecule called PSMA which is hypothesised to be a marker of aggression in primary brain tumours. 'Mapping' of the concentration and distribution of this molecule within brain tumours via PET-MRI may provide vital clinical information regarding the extent and timing of treatment.
The purpose of this study:(1) Development of a new risk classification model for childhood medulloblastoma. (2) Evaluation and improvement of existing individualized treatment protocols.