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Alyssa Johnsen, M.D., Ph.D.



Alyssa Johnsen, M.D., Ph.D., is Vice President and Rheumatology/Autoimmunity Disease Area Leader for the Immunology Therapeutic Area at Janssen Research & Development, LLC. In this role, Alyssa is responsible for driving scientific leadership in rheumatology and related immune-mediated conditions, overseeing innovative compounds across multiple phases of development.

Prior to her role at Janssen, Alyssa held clinical development, translational and portfolio leadership roles across Immunology and Oncology at Bristol-Myers Squibb, encompassing both early and late development.  She led development of a portfolio of immune-oncology assets from Phase 1 through POC as well as early registrational trials.  Within Immunology, she held a variety of roles including leader of the translational team for a key marketed asset and the leader of the late-phase clinical development group.

Earlier in her career, Alyssa was a faculty member in the Division of Rheumatology at the Brigham and Women’s Hospital and subsequently the University of Pennsylvania, performing basic and translational research in autoimmune diseases as well as caring for rheumatology patients.

Alyssa received her bachelor’s degree in chemistry at Duke University and her Ph.D. in immunology and M.D. at Case Western Reserve University. She completed residency training in internal medicine at the Massachusetts General Hospital and a fellowship in Rheumatology at the Brigham and Women’s Hospital.