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Spots Global Cancer Trial Database for Pan-T Booster Co-expressing MSLN CAR T Cell Therapy in Advanced/Metastatic Solid Tumors

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Trial Identification

Brief Title: Pan-T Booster Co-expressing MSLN CAR T Cell Therapy in Advanced/Metastatic Solid Tumors

Official Title: Phase I/II Study of Pan-T Booster Co-expressing MSLN CAR T Cell Therapy in Advanced/Metastatic Solid Tumors

Study ID: NCT05693844

Study Description

Brief Summary: In preclinical study, investigators have demonstrated that the newly developed pan-T booster (harbouring CD40 agonist and one T cell costimulator agonist) co-expressing MSLN CAR T cell possess more powerful antitumor activity than previously reported MSLN-CAR T cells. In this clinical trial, enrolled patients receive an initial dose of pan-T booster co-expressing MSLN CAR T cells at 1×10\^6 cells/kg based on the basic principle of dose escalation design, in order to evaluate the safety, feasibility, pharmacokinetics/pharmacodynamics, and efficacy of pan-T booster co-expressing MSLN CAR T cell in vivo.

Detailed Description: In this study, investigators have developed a novel CAR T cell system targeting mesothelin (MSLN) antigen, termed as Pan-T booster (harbouring CD40 agonist and one T cell costimulator agonist) co-expressing MSLN CAR T cell. Preclinical study demonstrated that this novel pan-T booster co-expressing MSLN CAR T cell possess more powerful antitumor activity than previously reported MSLN-CAR T cells. In this clinical trial, enrolled patients receive an initial dose of pan-T booster co-expressing MSLN CAR T cells at 1×10\^6 cells/kg based on the basic principle of dose escalation design, in order to evaluate the safety, feasibility, pharmacokinetics/pharmacodynamics, and efficacy of pan-T booster co-expressing MSLN CAR T cell in vivo. The level of CAR-T cell expansion and the duration of expansion are important determining factors for subsequent dose escalation infusions (3×10\^6 cells/kg and 6×10\^6 cells/kg). Repeated infusion, immune checkpoint inhibitor (such as anti-PD1/PD-L1) or local therapy (radiotherapy) are allowed when patients achieve clinical benefit and the level of CAR-T cell expansion declines to low level. In the 3 patients receiving the first dose treatment, we observed high levels of expansion of both total T cells and CAR T cells in the PB after CAR T cell infusion (CAR T \> 300 per microliter, total T cells reaching 10 times the number of CAR T cells), one patient experienced a grade 2 pulmonary toxicity and transient liver dysfunction during the CAR T cell expansion period (infusion 14 days later), transient marked enlargement of the spleen, and required to be treated with glucocorticoids and ruxolitinib to control T cell toxicity. Efficacy monitoring showed that some target lesion clearance or reduction could be achieved within 2-4 weeks after CAR T infusion. Based on these observations, it was concluded that low-dose CAR T infusion (CAR+T cells 1×10\^6 cells/kg) could achieve the sufficient level of CAR T cell expansion, and the initially planned CAR T dose escalation was dispensable. Subsequent patients after May 10th, 2024, will all be treated using 1×10\^6 cells/kg dose.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Kaichao Feng, Beijing, Beijing, China

Contact Details

Name: Yangbin Zhao, PhD

Affiliation: UTC Therapeutics Inc.

Role: STUDY_DIRECTOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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