On December 19, 2023 Carina Biotech Limited (Carina), a cell therapy immuno-oncology company, reported the dosing of the first patient in a Phase 1/2a clinical trial of its LGR5-targeted CAR-T cell therapy candidate CNA3103 for the treatment of adult patients with metastatic colorectal cancer (mCRC) (Press release, Carina Biotech, DEC 19, 2023, View Source;utm_medium=rss&utm_campaign=press-release-carina-biotech-doses-first-patient-in-phase-1-2a-clinical-trial [SID1234638639]). Enrolment in the Phase 1 segment commenced in Australia with three sites currently activated.
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CAR-T therapy is a personalised cell therapy that harnesses a patient’s immune system to fight their cancer.
Carina’s Phase 1/2a trial is a multi-centre, open-label study in patients with mCRC (NCT05759728) being conducted under a US FDA Investigational New Drug application.
The Phase 1 segment of the trial follows a Bayesian Optimal Interval (BOIN) study design during dose escalation to determine the Recommended Phase 2 Dose (RP2D) level safely and efficiently. A minimum of three subjects per cohort will be enrolled at each dose level.
In the Phase 2a segment of the trial, additional patients will be treated at the RP2D of CNA3103 to further evaluate the safety, anti-tumor activity, as well as pharmacokinetic and pharmacodynamic properties of CNA3103.
"We are delighted to have dosed the first patient in the Phase 1/2a trial evaluating our LGR5-targeted CAR-T candidate CNA3103. The initiation of our clinical trial in colorectal cancer is a major milestone for Carina. Preclinical studies of CNA3103 have demonstrated highly promising results with complete tumor regression and no tumor recurrence following rechallenge. We look forward to evaluating its profile in patients," said Deborah Rathjen PhD, Carina’s Chief Executive Officer. "A significant unmet need exists in the treatment of colorectal cancer. Colorectal cancer is the second leading cause of cancer deaths among men and women combined, and it is the deadliest form of cancer in Australians aged 25 to 34 years. We are thrilled to play a role in the introduction of a potentially revolutionary and targeted cancer treatment option that harnesses a patient’s own immune system to fight their cancer, which is CAR-T cell therapy."
Carina’s Chief Medical Officer Dr Jose Iglesias commented, "I look forward to working with my Australian colleagues in the development of CNA3103, a novel, and to our knowledge, first-in-class CAR-T directed against LGR5, a key player in the pathogenesis and dissemination of colorectal cancer. LGR5 is overexpressed in most colorectal cancers and is a marker of stemness, endowing cells with resistance to most forms of chemotherapy. CNA3103 may offer a new way to target this important molecule".
The study’s Principal Investigator at Royal Adelaide Hospital, Professor Michael Brown, said, "We are very grateful to the first patient for their involvement in a study that will be of great interest to other patients with metastatic colorectal cancer. Chemotherapy has been the mainstay of treatment for this disease. We hope that the results of this study will provide another way to bring benefit to patients".