NCT05366179

Autologous CAR-T Cells Targeting B7-H3 in Recurrent or Refractory GBM CAR.B7-H3Tc

Phase I Study of Intraventricular Infusion of T Cells Expressing B7-H3 Specific Chimeric Antigen Receptors (CAR) in Subjects With Recurrent or Refractory Glioblastoma

• Status: Recruiting
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 36 (estimated)
• Sponsor: UNC Lineberger Comprehensive Cancer Center · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to test the safety of using T lymphocyte chimeric antigen receptor cells against the B7-H3 antigen (CAR.B7-H3T cells) in patients with glioblastoma. CAR.B7-H3T cells treatment has not been tested in humans and is not an approved treatment by the Food and Drug Administration for glioblastoma.

Detailed description

This is a phase 1, single center, open-label study aims to determine the safety of escalating doses of chimeric antigen receptor T cells (CAR-T) cells targeting the B7-H3 antigen administered via intraventricular infusion to adult subjects with relapsed or refractory glioblastoma (GBM). Subjects with GBM who meet procurement eligibility criteria will have cells collected following their initial surgical resection to manufacture CAR.B7-H3T cells, preferably prior to initiation of adjuvant chemoradiation. At the time that the subjects have confirmed refractory or recurrent GBM, CAR.B7-H3T cells will be manufactured for subjects who likely to be eligible for cell infusion. Eligible subjects will receive up to 3 weekly infusions of CAR.B7-H3 cells. To receive the additional cycles of CAR.B7-H3 cells, all treatment-related toxicities must have resolved to grade \< 3, the subject must not have experienced a dose limiting toxicity (DLT) and the subject must not have progressive disease that has been confirmed by magnetic resonance imaging per Immunotherapy response assessment in neuro-oncology criteria. The data from the dose escalation will be used to determine a recommended phase 2 dose (RP2D), which will be decided on based on the maximum tolerated dose (MTD) and additional factors such as the feasibility of administering infusions.

Conditions

• Glioblastoma Multiforme

Interventions

Type	Name	Description
DRUG	CAR.B7-H3T cells infusion	The Chimeric Antigen Receptors (CAR).B7-H3T cells will be administered via intraventricular infusion up to 3 weekly infusions. A suspension of T cells infusion is given, over 5-10 minutes, via a Rickham catheter and will be followed by a normal-saline flush. Dose escalation will be performed considering the dose limiting toxicities (DLTs) listed in the protocol. Six doses will be explored. The starting dose will be 2 × 10\^6 transduced cells/infusion (Dose Level (DL) 1) and will enroll at least 3 subjects. If there are no dose DLTs within 4 weeks of the third cellular product administration in the first 3 subjects, then the next cohort will evaluate 5 × 10\^6 transduced cells/infusion (DL2).

Timeline

• Start date: 2022-09-02
• Primary completion: 2030-05-30
• Completion: 2030-05-30
• First posted: 2022-05-09
• Last updated: 2025-10-20

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated drug study