NantKwest announces 'promising' data from first six patients in QUILT trial
NantKwest announced promising safety data generated from the first six patients in its QUILT-3.064 trial. The first-in-human study evaluated the safety and preliminary efficacy of the Company's first-in-class, tumor-targeted PD-L1.t-haNK cell therapy in patients with locally advanced or metastatic solid tumors. "The unique dual-targeting of PD-L1.t-haNK to both PD-L1 expressing tumors and therapeutic monoclonal antibodies has the potential to be transformative to the treatment of advanced solid tumors with cell-based therapies," said Dr. Patrick Soon-Shiong, the Chairman and CEO of NantKwest. "PD-L1.t-haNK is a cryopreserved, off-the-shelf product that can rapidly deliver treatment to patients in an outpatient setting while avoiding the extensive manufacturing delays associated with autologous CAR-T therapies. We look forward to reporting full study results from the phase 1 cohort and moving toward a recommended phase 2 dose. We continue to advance our innovative cell therapies such as PD-L1.t-haNK in combination with ImmunityBio's N-803, an IL-15 superagonist that is designed to stimulate the activation and proliferation of the patient's own NK cells to maximize the potential of immunogenic cell death to treat cancer," continued Soon-Shiong. NantKwest and a wholly owned subsidiary of ImmunityBio have entered into an exclusive collaboration agreement to co-develop NantKwest's proprietary off-the-shelf NK platforms in combination with N-803. John Lee, M.D., Clinical Senior Vice President at NantKwest, said, "We are highly encouraged by the early safety results with PD-L1.t-haNK in a patient population with advanced, difficult to treat solid tumors. All patients were able to be infused in the outpatient setting without any reported cytokine toxicities or immune related adverse events. NantKwest's approach has been designed to overcome the challenges and limitations typically seen when treating solid tumors with CAR-T and other immunotherapy approaches and I look forward to progressing our studies to advance this innovative new approach to cancer therapy."