Safety and Efficacy Study for DC Vaccine in Recurrent or Progressive High-grade Gliomas
Trial Parameters
Brief Summary
This is a single-center, open-label, multi-dose phase I clinical trial evaluating the safety, tolerability, and preliminary efficacy of ZSNeo-DC1.1, a personalized dendritic cell injection, in subjects with recurrent or progressive WHO grade III-IV gliomas post-standard treatment. The subjects are adult GBM patients who have undergone surgical resection for recurrence. After the completion of reoperation, subjects will receive autologous DC vaccine treatments as scheduled. The autologous genetic-modification-free DC cells will be loaded with multiple tumor neoantigen peptides and administered (i.h) to subjects. After 3 injections, the investigator will review subject's tolerance and compliance. The DLT observation period spans from the initial injection to 21 days after the third injection, aligning with the activation of anti-tumor immune response. About 15 subjects will be enrolled. The study utilizes a fixed dose of 1×10\^7 cells per injection and employs two immunization schedules A or B. The trial is conducted in two stages: Dose Confirmation Stage: Enrollment of six subjects with recurrent or progressive gliomas following standard treatment. Each subject receives six subcutaneous injections of ZSNeo-DC1.1. Utilization of a standard "3+3" design for fixed dose confirmation and exploration of immunization schedules A and B. Dose Expansion Stage: Enrollment of at least six subjects with recurrent or progressive gliomas post-standard treatment. Administration of six subcutaneous injections of ZSNeo-DC1.1 to each subject, further investigating the safety and preliminary efficacy of ZSNeo-DC1.1 injection.
Eligibility Criteria
Inclusion Criteria: * Participants must meet all the following criteria to be eligible: 1. Age from 18 to 75 years (including 18 and 75 years old). 2. Subjects with histologically or cytologically confirmed WHO grade III-IV gliomas experiencing recurrence or progression after standard treatment. 3. Bridging therapy is allowed during the preparatory period after sample collection, with discontinuation at least 7 days or 5 drug half-lives (whichever is longer) before the initial treatment. 4. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 2. 5. Laboratory test results defining satisfactory hematological and organ function: Platelets (PLT) ≥ 90 × 10\^9/L; Absolute Neutrophil Count (ANC) ≥ 1.5 × 10\^9/L; Haemoglobin (HGB) ≥ 90 g/L; Serum Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST) ≤ 2.5× ULN; Total Bilirubin (TBIL) ≤ 2.5 × ULN; Albumin (ALB) ≥ 3 g/dl; Creatinine clearance rate (CrCl) ≥ 45 mL/minute or Serum Creatinine ≤ 1.5 ×ULN; International