Alumis Presents Additional Phase 1 Data at ACTRIMS Forum 2025 Supporting Potential of A-005 as First-in-Class CNS Penetrant TYK2 Inhibitor for Treatment of Neuroinflammatory and Neurodegenerative Diseases

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Alumis Inc.
Alumis Inc.

SOUTH SAN FRANCISCO, Calif., Feb. 27, 2025 (GLOBE NEWSWIRE) -- Alumis Inc. (Nasdaq: ALMS) (“Alumis” or the “Company”), a clinical stage biopharmaceutical company developing oral therapies using a precision approach to optimize clinical outcomes and significantly improve the lives of patients with immune-mediated diseases, today announced the Company will give two data presentations on A-005, a potent, selective, central nervous system (CNS) penetrant tyrosine kinase 2 (TYK2) inhibitor, on Friday, February 28, 2025, at the 10th Annual Americas Committee for Treatment and Research in Multiple Sclerosis (ACTRIMS) Forum 2025.

“These data demonstrate that A-005 potently inhibits TYK2-specific signaling in immune cells and CNS resident cells, targeting pro-inflammatory cytokine pathways implicated in the pathology of neuroinflammatory diseases,” said Jörn Drappa, M.D., Alumis’ Chief Medical Officer. “As the first reported allosteric TYK2 inhibitor with demonstrated ability to cross the blood-brain barrier, A-005 represents a novel approach to potentially treating a broad range of diseases associated with CNS inflammation.”

Dr. Drappa added, “The Phase 1 clinical data demonstrate that A-005 was well tolerated and achieved maximal TYK2 inhibition across a broad dose range. These data support our plans to commence a Phase 2 clinical trial in patients with multiple sclerosis in the second half of this year.”

Details regarding the February 28, 2025, presentations are as follows:

Title: A-005, a Selective Oral Brain Penetrant TYK2 Inhibitor, Modulates Astrocytes and Microglia
Poster Number: P352
Time: 6:00 PM – 6:45 PM ET

Title: Safety, Tolerability, and Pharmacokinetics of A-005: A Selective Brain-Penetrant TYK2 Inhibitor for CNS Inflammatory Diseases in Healthy Volunteers Following Single and Multiple Ascending Doses
Poster Number: P335
Time: 6:45 PM – 7:30 PM ET

The ACTRIMS Forum 2025 posters will be made available in the Publications section of the Alumis website on February 28, 2025 concurrent with the presentations.

About the A-005 Phase 1 Clinical Trial
The Phase 1 clinical trial evaluated the safety, tolerability, and pharmacokinetics (PK) of single- and multiple-ascending doses of A-005 in 135 healthy participants. The trial included a single-ascending dose (SAD) portion which evaluated ten dose cohorts, a 14-day multiple-ascending (MAD) dose portion which evaluated five dose cohorts (n=8, 6 active, 2 placebo) and a single dose cohort which included a lumbar puncture to assess A-005 concentrations in the CSF. For the SAD and MAD portions of the study, pharmacodynamic (PD) markers (including pSTAT levels) were measured to establish a PK/PD relationship.