Seismic Therapeutic vs Pliant Therapeutics
Side-by-side comparison of AI visibility scores, market position, and capabilities
Seismic Therapeutic raised $222M+ total ($121M Series B in 2023, $25M in 2025) using its IMPACT ML platform; dosed first patient in Phase 1 for S-4321 bifunctional antibody in autoimmune disease.
About
Seismic Therapeutic is a clinical-stage biotechnology company based in Boston, Massachusetts that applies machine learning to the discovery and development of novel immunotherapies for autoimmune diseases. Founded with a focus on precision immunology, Seismic built its IMPACT platform to model the complex biology of adaptive immunity — identifying which immune cell populations drive specific autoimmune conditions and designing biologics that precisely modulate those populations without broadly suppressing the immune system. This targeted approach aims to produce safer, more effective treatments for conditions like lupus, rheumatoid arthritis, and inflammatory bowel disease.
Pliant Therapeutics is a clinical-stage biotech (Nasdaq: PLRX) developing integrin inhibitors for fibrotic diseases, with lead program bexotegrast in Phase 2b/3 trials for idiopathic pulmonary fibrosis.
About
Pliant Therapeutics develops small molecule integrin inhibitors targeting the pathological tissue scarring (fibrosis) that drives diseases including idiopathic pulmonary fibrosis (IPF), primary sclerosing cholangitis (PSC), and nonalcoholic steatohepatitis (NASH/MASH). Integrins are cell surface receptors that activate TGF-β, the master regulator of fibrosis — blocking specific integrin subtypes (αvβ6, αvβ1) can halt or reverse fibrosis progression without broadly suppressing immunity.
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