Parabilis Medicines vs Biogen
Side-by-side comparison of AI visibility scores, market position, and capabilities
Clinical-stage biotech; raised $305M Series F (Jan 2026) for AI-optimized peptides targeting intracellular cancer proteins previously considered undruggable; oncology-first pipeline
About
Parabilis Medicines is a clinical-stage biotechnology company applying AI to the design of peptide-based therapeutics targeting proteins previously considered undruggable, with a primary focus on oncology. The company was founded on the insight that AI-optimized peptides — short chains of amino acids — can be engineered to reach and modulate intracellular protein targets that small molecules and biologics cannot access. Parabilis uses proprietary computational platforms to design, screen, and optimize peptide candidates with improved cell permeability, stability, and target selectivity.\n\nThe company's pipeline is centered on cancer proteins that drive tumor growth but lack conventional binding pockets for small molecule inhibition. Parabilis's AI-designed peptides are engineered to penetrate cancer cells and disrupt these oncogenic interactions, potentially unlocking entirely new therapeutic options for patients with tumors driven by these targets. The approach also has potential applications in other diseases where intracellular protein-protein interactions are central to pathology.\n\nParabilis raised $305M in a Series F round in January 2026, one of the largest biotech fundraises of that period. The financing was designed to advance its lead programs through clinical development and expand its pipeline of AI-designed peptide candidates. With over $300M in fresh capital, Parabilis is one of the most heavily funded companies in the emerging AI peptide therapeutics space, positioning it to compete with both traditional peptide drug developers and newer AI-native biotech platforms.
Cambridge MA neuroscience biopharma (NASDAQ: BIIB) at $9.7B 2024 revenue; LEQEMBI $87M Q4 (Alzheimer's first-in-class amyloid therapy), SKYCLARYS $102M Q4 (Friedreich's ataxia), MS franchise declining vs. Eli Lilly donanemab.
About
Biogen Inc. is a Cambridge, Massachusetts-based neuroscience biopharmaceutical company — publicly traded on NASDAQ (NASDAQ: BIIB) as an S&P 500 Health Care component — researching, developing, and commercializing therapies for neurological, neurodegenerative, and neurodevelopmental diseases including Alzheimer's disease, multiple sclerosis, spinal muscular atrophy, and rare neurological conditions through approximately 7,400 employees worldwide. In fiscal year 2024, Biogen reported total revenue of $9.7 billion (-2% year-over-year) and GAAP diluted EPS of $11.18 (+40%), reflecting significant cost-cutting that improved profitability despite modest revenue decline. Revenue decline was driven by continued erosion in the core multiple sclerosis franchise (TECFIDERA, AVONEX, TYSABRI facing generic and biosimilar competition) while new product revenue grew: LEQEMBI (lecanemab, Alzheimer's disease, partnered with Eisai) generated approximately $87 million in Q4 2024 global sales — reflecting the slow but building commercial trajectory of the first drug to slow Alzheimer's cognitive decline — and SKYCLARYS (omaveloxolone, Friedreich's ataxia) generated $102 million in Q4, nearly double the year-earlier period. CEO Christopher Viehbacher, who joined in 2022 from Genentech's parent Roche, has led a strategic restructuring that includes cost reduction, pipeline refocus on high-probability neurology programs, and the LEQEMBI commercial execution through a partnership model with Eisai.
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