NCT04888611

Neoadjuvant PD-1 Antibody Alone or Combined With DC Vaccines for Recurrent Glioblastoma

Neoadjuvant PD-1 Antibody Alone or Combined With Autologous Glioblastoma Stem-like Cell Antigens-primed DC Vaccines (GSC-DCV) for Patients With Recurrent Glioblastoma：A Phase II, Randomized Controlled, Double Blind Clinical Trial.

• Status: Unknown
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: Huashan Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 70 Years
• Healthy volunteers: Not accepted

Summary

Glioblastoma multiforme (GBM) are the most prevalent malignant tumor in central nervous system. At recurrence, no clear standard-of-care therapy is agreed for recurrent GBM (rGBM) and median overall survival is estimated to rarely exceed 6-9 months with effective therapies. Neoadjuvant therapy with anti-PD-1 monoclonal antibodies were confirmed to be helpful to extend survival in rGBM. Vaccine, dendritic cells (DCs) pulsed with glioblastoma stem-like cell (GSC) antigens (GSC-DCV), could extend survival for GBM patients in our previous clinical study (PMID: 30159779). The purpose of this study is to evaluate the safety and efficiency of using the neoadjuvant therapy with PD-1 antibody (Carilizumab) plus DC vaccine (GSC-DCV) in patients with recurrent glioblastoma.

Detailed description

This is a phase II randomized controlled clinical study. The purpose of this research is to study the safety and efficacy of Camrelizumab alone or combined with GSC-DCV vaccines in treating patients with recurrent glioblastomas. The participants will be randomly assigned into two group. Patients in group A will receive neoadjuvant Camrelizumab (PD-1 antibody), followed by surgical resection, DC vaccines and further PD-1 inhibitor treatment until toxicity or progression. Patients in group B will receive neoadjuvant Camrelizumab (PD-1 antibody), followed by surgical resection, placebo and further PD-1 inhibitor treatment until toxicity or progression. Furthermore, to evaluate the associations between exploratory biomarkers, clinical outcomes, and adverse events based on the next generation sequencing.

Conditions

• Recurrent Glioblastoma

Interventions

Type	Name	Description
BIOLOGICAL	Camrelizumab plus GSC-DCV	Prior to scheduled surgery, patients need to receive Camrelizumab IV (3mg/kg, up to 200mg). After surgery, patients receive Camrelizumab IV (3mg/kg, up to 200mg) and GSC-DCV IH every 3 weeks in the absence of disease progression or unacceptable toxicity.
BIOLOGICAL	Camrelizumab plus Placebo	Prior to scheduled surgery, patients need to receive Camrelizumab IV (3mg/kg, up to 200mg). After surgery, patients receive Camrelizumab IV (3mg/kg, up to 200mg) and Placebo IH every 3 weeks in the absence of disease progression or unacceptable toxicity.

Timeline

• Start date: 2021-10-26
• Primary completion: 2023-05-01
• Completion: 2024-05-01
• First posted: 2021-05-17
• Last updated: 2021-11-30

Locations

1 site across 1 country: China