View clinical trials related to Sarcoma, Clear Cell.
Filter by:This study is a prospective monocentric study aimed to evaluate the diagnosis and staging value of 18F-PFPN PET in clear cell sarcoma of soft tissue. Patients with clinically suspected or confirmed clear cell sarcoma of soft tissue will be recruited and 18F-PFPN PET/MR imaging will be performed. PET/CT imaging will be performed in patients with contraindications to MR. Additionally, to compare the diagnostic efficacy with the traditional imaging agent 18F-FDG, patients will also undergo 18F-FDG PET imaging, and the two imaging intervals will be completed two days apart. The general information, clinical data, 18F-PFPN and 18F-FDG PET/MR or PET/CT imaging results and other imaging data of the patients will be collected. The histopathology of the biopsy or surgical specimen, follow-up and other imaging examinations will be taken as evaluation references. This study plans to set the sample size as 10 cases.
3CAR is being done to investigate an immunotherapy for patients with solid tumors. It is a Phase I clinical trial evaluating the use of autologous T cells genetically engineered to express B7-H3-CARs for patients ≤ 21 years old, with relapsed/refractory B7-H3+ solid tumors. This study will evaluate the safety and maximum tolerated dose of B7-H3-CAR T cells.The purpose of this study is to find the maximum (highest) dose of B7-H3-CAR T cells that are safe to give to patients with B7-H3-positive solid tumors. Primary objective To determine the safety of one intravenous infusion of autologous, B7-H3-CAR T cells in patients (≤ 21 years) with recurrent/refractory B7-H3+ solid tumors after lymphodepleting chemotherapy Secondary objective To evaluate the antitumor activity of B7-H3-CAR T cells Exploratory objectives - To evaluate the tumor environment after treatment with B7-H3-CAR T cells - To assess the immunophenotype, clonal structure and endogenous repertoire of B7-H3-CAR T cells and unmodified T cells - To characterize the cytokine profile in the peripheral blood after treatment with B7-H3-CAR T cells
This trial is a translational, open-label, multi-sites, prospective and retrospective cohort study of 500 patients aimed at clinical and biological characterization of sarcoma of rare subtype. 400 patients will be included in this prospective cohort study; they will be identified in the investigating centers in the context of either routine care or a clinical study protocol. Retrospective cases of patients (100 cases in total) will be identified in all centers through the GSF/GETO clinical databases already setted up (including the clinical base Conticabase).
This is a phase I, open-label, non-randomized study that will enroll pediatric and young adult research participants with relapsed or refractory non-CNS solid tumors to evaluate the safety, feasibility, and efficacy of administering T cell products derived from the research participant's blood that have been genetically modified to express a EGFR-specific receptor (chimeric antigen receptor, or CAR) that will target and kill solid tumors that express EGFR and the selection-suicide marker EGFRt. EGFRt is a protein incorporated into the cell with our EGFR receptor which is used to identify the modified T cells and can be used as a tag that allows for elimination of the modified T cells if needed. On Arm A of the study, research participants will receive EGFR-specific CAR T cells only. On Arm B of the study, research participants will receive CAR T cells directed at EGFR and CD19, a marker on the surface of B lymphocytes, following the hypothesis that CD19+ B cells serving in their normal role as antigen presenting cells to T cells will promote the expansion and persistence of the CAR T cells. The CD19 receptor harbors a different selection-suicide marker, HERtG. The primary objectives of the study will be to determine the feasibility of manufacturing the cell products, the safety of the T cell product infusion, to determine the maximum tolerated dose of the CAR T cells products, to describe the full toxicity profile of each product, and determine the persistence of the modified cell in the subject's body on each arm. Subjects will receive a single dose of T cells comprised of two different subtypes of T cells (CD4 and CD8 T cells) felt to benefit one another once administered to the research participants for improved potential therapeutic effect. The secondary objectives of this protocol are to study the number of modified cells in the patients and the duration they continue to be at detectable levels. The investigators will also quantitate anti-tumor efficacy on each arm. Subjects who experience significant and potentially life-threatening toxicities (other than clinically manageable toxicities related to T cells working, called cytokine release syndrome) will receive infusions of cetuximab (an antibody commercially available that targets EGFRt) or trastuzumab (an antibody commercially available that targets HER2tG) to assess the ability of the EGFRt on the T cells to be an effective suicide mechanism for the elimination of the transferred T cell products.
Rationale: The combination of ipilimumab and nivolumab induces relatively high response rates and promising response depth in late stage melanoma. Nevertheless, it takes time till responses occur and still a significant number of patients do not benefit from treatment, due to rapid progressive disease or resistance to therapy. In contrast to immunotherapies targeted therapies (BRAF or MEK inhibitors), can induce faster and higher response rates, but often of shorter duration, even when combined. Initial attempts of combining vemurafenib or dabrafenib + trametinib with ipilimumab failed due to toxicity. Patients with elevated levels of serum LDH are less likely to respond to immunotherapy compared to patients with normal LDH levels. This does not mean that such patients do not benefit at all from immunotherapy. This raises the question, whether response rates upon immunotherapy can be improved by upfront reduction of tumor burden and normalization of LDH. The investigators postulate that induction therapy with combined BRAF+MEK inhibition, and subsequent LDH normalization, can improve response rates to the rates seen in LDH normal patients. To address this question the investigators have setup a randomized phase 2 trial in metastatic melanoma patients with elevated serum LDH comparing the response rates upon ipilimumab + nivolumab versus ipilimumab + nivolumab preceded by 6 weeks of vemurafenib + cobimetinib induction. Furthermore, less than half of the patients treated with the combination of ipilimumab and nivolumab received maintenance nivolumab, and approximately 40% of all patients discontinued treatment for toxicity. In 70% of patients responses were ongoing despite discontinuation of treatment due to toxicity. This raises the question, to what extent does maintenance therapy add clinical benefit to an ongoing immune response. Preclinical data indicate even that continuous restimulation of T cells can result in activation induced non-responsiveness (anergy). Therefore, a secondary objective of this trial will be, to test a response-driven nivolumab scheme Objectives: Primary Objective • To compare efficacy of induction vemurafenib + cobimetinib followed by ipilimumab + nivolumab (Arm A) versus upfront ipilimumab + nivolumab treatment (Arm B). Secondary Objectives - To describe duration of response and overall survival induced by vemurafenib + cobimetinib followed by the combination of ipilimumab + nivolumab (Arm A) as compared to ipilimumab + nivolumab (Arm B) - To describe the rate and quality of toxicity observed in the two study arms - To describe the rate of ongoing responses upon response-driven flat dose (240mg q2w or 480mg q4w) nivolumab maintenance - To determine the immune-activating capacity of induction therapy with vemurafenib + cobimetinib followed by the combination of ipilimumab + nivolumab. - To evaluate the changes in systemic immune competence Study design: This is a two-arm phase 2 study consisting of 200 BRAFV600E/K mutation-positive late-stage melanoma patients with an elevated baseline LDH level (> ULN, < 3xULN) randomized 1:1 (stratified according to LDH) to receive either vemurafenib + cobimetinib directly followed by ipilimumab + nivolumab (Arm A) or standard first line ipilimumab + nivolumab (Arm B). Subsequently, patients in both arms will receive flat dose (240mg q2w or 480mg q4w) nivolumab maintenance in a response-driven manner. Study population: Stage IV, or unresectable stage III, BRAFV600E/K mutation positive melanoma patients, naïve for BRAF/MEK, PD-1/PD-L1 or CTLA-4 targeting therapy, 18 years and older. Intervention: Patients will be randomized 1:1 to receive either 6 weeks vemurafenib 960 mg bid + cobimetinib 60 mg QD 21-day on, 7-day off (21/7) schedule, directly followed by 4 courses of ipilimumab 3mg/kg q3wk + nivolumab 1mg/kg q3wk (Arm A) or first line standard 4 courses of ipilimumab 3mg/kg q3wk + nivolumab 1mg/kg q3wk (Arm B). Subsequently, patients in both arms will receive nivolumab maintenance flat dose (240mg q2w or 480mg q4w) in a response-driven manner according to their response at week 18. Main study parameters/endpoints: Primary Endpoints • Compare the best overall response rate (BORR) according to RECIST 1.1 of both arms at week 18 from start of treatment. Secondary Endpoints - Progression-free survival (PFS) according to RECIST 1.1 - Overall survival (OS) - Percentage of grade 3/4 toxicities according to CTCv4.03 - Percentage of ongoing response, percentage of patients requiring re-induction, response percentage upon re-induction - Changes in tumor-specific T cell responses
This research trial studies kidney tumors in younger patients. Collecting and storing samples of tumor tissue, blood, and urine from patients with cancer to study in the laboratory may help doctors learn more about changes that occur in deoxyribonucleic acid (DNA) and identify biomarkers related to cancer.