Aerska Therapeutics vs Karius
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $39M (Feb 2026, doubled from $21M Series A). Brain-shuttle + RNAi delivery for genetic Alzheimer's and Parkinson's. Non-viral CNS delivery crossing blood-brain barrier.
About
Aerska Therapeutics is developing a brain-shuttle RNAi (RNA interference) platform for CNS gene silencing — specifically targeting the genetic forms of Alzheimer's disease and Parkinson's disease caused by dominant mutations that can be silenced by RNA therapeutics. The company raised $39 million in February 2026, doubling its prior $21 million Series A round, led by ex-AstraZeneca neuroscience executives who validated both the science and the commercial opportunity.
Karius raised $409M total including a $100M Series C in May 2024; its genomic blood test detects 1,000+ pathogens at 400+ U.S. hospitals; launched Karius Focus BAL for pneumonia in April 2025.
About
Karius is a Redwood City, CA-based life sciences company founded in 2014 that developed the Karius Test — a single blood draw that uses next-generation sequencing and AI to detect over 1,000 pathogens (bacteria, fungi, viruses, parasites) in seriously ill patients. The test is used when conventional cultures and targeted diagnostics fail, providing clinicians at transplant centers, children''s hospitals, and ICUs with a comprehensive pathogen report within 24 hours.
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