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Clinical Trial Summary

The purpose is to study the safety, tolerability, pharmacokinetics, pharmacodynamics and efficacy of CAR20(NAP)-T for patients with B-cell malignancies.


Clinical Trial Description

A cancer patient's T cells can be isolated and engineered to express a chimeric antigen receptor (CAR), which re-directs the T cells to recognize and kill tumor cells expressing that particular antigen. CD19-targeted CAR-T cell therapy has shown good effects for B cell malignancies, even cure, in otherwise therapy refractory patients. Antigen escape, i.e., the downregulation of the antigen targeted by the CAR due to the selective pressure caused by the CAR-T cell therapy is a challenge. For patients treated with CD19 CAR-T cell therapy, about 30% of the patients are resistant to treatment and about 20% of patients relapse after an initial response. CAR20(NAP)-T cells target CD20 and upon target recognition secrete a bacterial-derived pluripotent immune-stimulating factor named NAP (Helicobacter pylori Neutrophil-activating protein). Secretion of NAP in the tumor microenvironment can induce an endogenous bystander immune response, that counteracts antigen escape and thereby improves the therapeutic outcome. CAR20(NAP)-T is an investigational agent not yet approved by authorities. Design: The study is designed as 3+3 dose escalation phase I, and a dose expansion Phase IIa. The safety, tolerability, PK/PD, and efficacy will be evaluated.Dose escalation is to be based on the incidence of dose-limiting toxicity (DLTs). The investigator or sub-investigator will decide if the AE is related to IMP-treatment on a case-by-case basis depending on the character of the DLT symptoms. Investigator or sub-investigator has a possibility to classify various toxicity observed in patient as DLT.The Recommended phase II dose (RP2D) is decided based on safety, PK/PD data as well as preliminary clinical activity data from the Phase I dose escalation. After setting the RP2D, additional patients will be treated at RP2D to make sure at least 6 patients will be treated at RP2D dose level already at the phase I part. Protocol treatment: The enrolled patient will undergo a leukapheresis procedure to harvest enough T cells for IMP production. During CAR20(NAP)-T manufacturing, the patient may receive bridging therapy to control tumor burden. All patients will receive pre-conditioning chemotherapy (cyclophosphamide and fludarabine) followed by one dose of CAR20(NAP)-T cell infusion intravenously. The patient will then be followed by doctor/study nurse for evaluation of the health status and side effects. At follow-up visits, blood samples will be obtained and CT imaging will be performed. Patient will actively participate in the study for about 24 months when the final follow-up visit will be scheduled. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06002659
Study type Interventional
Source Uppsala University
Contact Gunilla Enblad, MD/PhD
Phone +46186110000
Email gunilla.enblad@igp.uu.se
Status Recruiting
Phase Phase 1/Phase 2
Start date May 1, 2024
Completion date December 30, 2027

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