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GT Biopharma Announces FDA Clearance of Investigational New Drug (IND) Application for GTB-3650, an NK Cell Engager for Treatment of CD33+ Leukemia
GTB-3650 Phase 1 trial initiation expected in H2 2024; initial clinical data expected in H1 2025GTB-5550 TriKE® IND submission for treatment of B7H3 positive
About this update from Gt Biopharma, Inc.
[{"type":"text","content":"GTB-3650 Phase 1 trial initiation expected in H2 2024; initial clinical data expected in H1 2025GTB-5550 TriKE® IND submission for treatment of B7H3 positive solid tumors expected in Q1 2025GTB-5550 Phase 1 dose escalation basket trial initiation expected in 2025 evaluating GTB-5550 in six solid tumor cancers, including prostate, breast, head and neck, ovarian, lung, and GICash runway anticipated to be sufficient to fund operations into 2025 SAN FRANCISCO, CALIFORNIA, June 27, 2024 (GLOBE NEWSWIRE) -- GT Biopharma, Inc. (the “Company”) (NASDAQ: GTBP), a clinical stage immuno-oncology company focused on developing innovative therapeutics based on the Company's proprietary natural killer (NK) cell engager, TriKE® platform, today announced FDA clearance of its IND application for GTB-3650, allowing the company to proceed with a Phase 1 clinical trial, which is anticipated to start in second half of 2024. “FDA clearance for GTB-3650 is a tremendous accomplishment and we look forward to submitting our next IND in the first quarter of 2025 for GTB-5550, which will target multiple solid tumors”, said Michael Breen, Executive Chairman and Interim Chief Executive Officer of GT Biopharma. “As we ramp up our clinical activities, we plan to start the Phase 1 trial with GTB-3650 in the coming months followed by multiple data readouts in 2025. We also expect to start a basket trial with GTB-5550 for multiple solid tumors in 2025 and remain very enthusiastic in our pursuit of additional opportunities for various autoimmune indications where our TriKE’s may have therapeutic utility.” The Phase 1 dose escalation study will evaluate GTB-3650 in up to six cohorts of adult patients with relapsed or refractory (r/r) CD33 expressing hematologic malignancies, including acute myeloid leukemia (AML) and high-risk myelodysplastic syndrome (MDS). GTB-3650 will be dosed in two-week blocks, two weeks on and two weeks off for up to four months based on clinical benefit. The trial will assess safety, pharmacokinetics, pharmacodynamics, in vivo expansion of endogenous patient NK cells and clinical activity. “GTB-3650 is designed to target NK cells within the immune system to potentially overcome many of the limitations of current AML chemotherapies,” said Michael Breen. “Our trial design should give us an early read on safety and potential therapeutic activity...