Rubius Therapeutics Announces Dosing of First Patient in Phase 1/2 Trial of RTX-224, a Broad Immune Agonist, for the Treatment of Certain Solid Tumors

Excerpt from the Press Release:

CAMBRIDGE, Mass., Jan. 13, 2022 (GLOBE NEWSWIRE) — Rubius Therapeutics, Inc. (Nasdaq: RUBY), a clinical-stage biopharmaceutical company that is biologically engineering red blood cells to create an entirely new class of cellular medicines called Red Cell Therapeutics™ for the treatment of cancer and autoimmune disease, today announced that the first patient has been dosed in its Phase 1/2 clinical trial of RTX-224 for the treatment of patients with certain relapsed/refractory or locally advanced solid tumors, including non-small cell lung cancer, cutaneous melanoma, head and neck squamous cell carcinoma, urothelial (bladder) carcinoma and triple-negative breast cancer.

“While our lead oncology product candidate, RTX-240, is designed to broadly stimulate the immune system by activating and expanding NK and CD8+ memory T cells, we expect RTX-224 to produce a broad and potent anti-tumor T cell response, an innate immune response and have anti-tumor activity in those tumor types with known sensitivity to T cell killing, including tumor types with high mutational burden, PD-L1 expression and known responsiveness to checkpoint inhibitors,” said Larry Turka, M.D., chief scientific officer and head of research and translational medicine of Rubius Therapeutics. “Given the mechanism of action of RTX-224 and totality of our preclinical data generated to date, we believe RTX-224 will be an effective treatment for select advanced solid tumors.”

RTX-224 is an allogeneic, off-the-shelf cellular therapy product candidate that is engineered to express hundreds of thousands of copies of 4-1BB ligand (4-1BBL) and interleukin-12 (IL-12) on the cell surface.

About the RTX-224 Phase 1/2 Clinical Trial
This is a Phase 1/2 open label, multicenter, multidose, first-in-human dose-escalation and expansion study to determine the safety and tolerability, pharmacokinetics, maximum tolerated dose and a recommended Phase 2 dose and dosing regimen of RTX-224 in adult patients with certain relapsed/refractory or locally advanced solid tumors including non-small cell lung cancer, cutaneous melanoma, head and neck squamous cell carcinoma, urothelial (bladder) carcinoma and triple-negative breast cancer. The trial will also assess pharmacodynamic changes in immune cell populations relative to baseline and anti-tumor activity. The study will include a monotherapy dose escalation phase followed by an expansion phase in specified tumor types during the Phase 2 portion of the trial.

Click the button below to read the entire Press Release:

Continue Reading The Press Release