Gilead Sciences' (GILD) Kite unit said Friday that two investigational bicistronic CAR T-cell therapies, KITE-753 and KITE-363, showed encouraging efficacy and safety results in a phase 1 study in patients with relapsed or refractory large B-cell lymphoma.
Both therapies target CD19 and CD20 antigens and use CD28 and 4-1BB co-stimulatory domains, the company said.
The open-label study enrolled 67 patients, including 30 treated with KITE-753 and 37 with KITE-363, Kite said.
At dose level three of KITE-753, 11 of 14 CAR-naive patients achieved a complete response at a median 2.9-month follow-up, the company said.
For KITE-363, the company reported durable benefit at the highest dose, with over 70% of complete responders remaining in remission at 12 months after a median 17.5-month follow-up.
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