Top 5 Rheumatoid Arthritis treatment startups in USA

Jun 24, 2026
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1
Nimbus Therapeutics
Funding: $637M
Nimbus Therapeutics develops highly selective and potent small molecule drugs aimed at suppressing known factors that cause serious diseases, including metabolic diseases, cancer, and immune-inflammatory disorders (psoriasis, arthritis). The company's drug discovery platform utilizes advanced protein structure analysis, molecular modeling, machine learning-based prediction, and comprehensive data analysis within a target-oriented approach. The atomic-level data obtained using these tools enables the creation of highly accurate molecules that determine optimal pharmacological profiles for the treatment of disease pathology.
2
Acelyrin
Funding: $558M
ACELYRIN is a biopharma company that identifies, acquires, and accelerates the development and commercialization of life-changing inflammatory-disease-focused therapies.
3
SetPoint Medical
Funding: $496.4M
SetPoint Medical treats patients with debilitating inflammatory diseases using proprietary implantable bioelectronic devices.
4
Evelo Biosciences
Funding: $397M
Evelo is pioneering therapies that modulate systemic immune response by acting on the gut-body network - monoclonal microbials. They have the potential to treat many diseases, including inflammatory disease, cancer, autoimmune disease, metabolic, neurobehavior and neuroinflammatory diseases.
5
AltruBio
Funding: $327.6M
AltruBio develops antibody-targeted therapies for psoriatic arthritis and ulcerative colitis
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Editor: Jason Kwon
Jason Kwon is a senior editor for MedicalStartups. He has previously covered the pharmaceutical and medical research industries for FDAnews and worked as a head of marketing for medical startup Sonic Therapeutics. Before that, he co-founded a startup consulting business for emerging entrepreneurial hubs in Asia. Jason graduated from St. Bonaventure University’s journalism school. In his free time, Jason enjoys yoga, watching movie trailers, traveling to places where he can't get cell service. You can contact Jason at jaskwon(at)medicalstartups(dot)com