About this trial
This is an open-label, single-arm, dose-escalation and expansion Phase 1/2 clinical trial designed to evaluate the safety, tolerability and efficacy of P134 cells in patients with recurrent glioblastoma, to explore the maximum tolerated dose (MTD)and recommended Phase 2 dose (RP2D), and to characterize the cytokinetic profile of CAR-T cells in the cerebrospinal fluid of patients. Eligible participants are adults diagnosed with recurrent or progressive glioblastoma who are confirmed as grade 4 glioblastoma (IDH wild-type) by histopathology or molecular pathology.
P134 cells are CD44/CD133 dual-targeting CAR-T cells developed by the research team led by Academician Jiang Tao and Professor Zhang Wei from the Beijing Neurosurgical Institute and the Department of Neurosurgery, Beijing Tiantan Hospital. This study is spearheaded by Professor Zhang Wei of the Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, China, with scientific oversight and guidance provided by Academician Jiang Tao of the Chinese Academy of Engineering.
Eligibility criteria
Qualifiers
Voluntary written informed consent.
18-70 years of age (inclusive), male or female.
Recurrent or progressive glioblastoma, histopathologically or molecularly diagnosed consistent with grade 4 glioblastoma (IDH wild-type) (refer to WHO Classification of Central Nervous System Tumors, 5th Edition, 2021).
Positive CD44 or CD133 antigen expression in tumor tissue confirmed by IHC, defined as ≥1% of tumor cells showing positive CD44 or CD133 IHC staining, regardless of intensity (applicable only in Phase II dose expansion study).
Disqualifiers
Highly allergic constitution or history of severe allergy, or allergy to related cell products
Receipt of biologic anti-tumor therapy (including monoclonal or bispecific antibody-targeted therapy, immune checkpoint inhibitor therapy, etc.) within 6 weeks prior to PBMC collection; receipt of radiotherapy or surgery within 4 weeks prior to PBMC collection (excluding placement of vascular access devices; a 1-week washout period is acceptable for diagnostic biopsy surgeries); receipt of chemotherapy, hormone therapy (excluding hormone replacement therapy), or non-specific immunomodulatory therapy (such as interleukins, interferons, thymosin, cyclophosphamide, methotrexate, tumor necrosis factor, etc.) within 2 weeks prior to PBMC collection; receipt of traditional Chinese medicine therapy with a clear anticancer indication within 1 week prior to PBMC collection.
The adverse reactions caused by previous anti-tumor treatment have not recovered to ≤ Grade 1 as evaluated by NCI CTCAE v6.0 (except alopecia, skin pigmentation, leukoplakia, etc. which are assessed as having no safety risk).
Tumor metastasis to the brainstem or spinal cord.
Trial design
Treatments tested in this trial
- P134 cell injection