Royalty Pharma and J&J partner to develop autoimmune treatment
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Published on March 30, 2026.
Royalty Pharma (RPRX.O) has signed a $500 million research and development agreement with Johnson & Johnson (JNJ.N) to develop an experimental antibody treatment for autoimmune diseases. The agreement will cover 2026 and 27 years and will support the development of JNJ-4804, an experimental co-antibody therapy that targets the two immune pathways involved in autoimmune inflammation. Shares of Royalty Pharma rose by 1.4% in premarket trading.
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