On Aug. 19, 2020, Johnson & Johnson announced an agreement to acquire Momenta Pharmaceuticals, a company that discovers and develops novel therapies for immune-mediated diseases, in an all cash transaction for approximately $6.5 billion. Momenta was founded in 2001 with its headquarters in Cambridge, Massachusetts.

This acquisition provides an opportunity for the Janssen Pharmaceutical Companies of Johnson & Johnson to broaden its leadership in immune-mediated diseases and drive further growth through expansion into autoantibody-driven disease. The transaction will include full global rights to nipocalimab (M281), a clinically validated, potentially best-in-class anti-FcRn antibody. Nipocalimab gives Janssen the opportunity to reach significantly more patients by pursuing indications across many autoimmune diseases with substantial unmet medical need in maternal-fetal disorders, neuro-inflammatory disorders, rheumatology, dermatology and autoimmune hematology. Nipocalimab recently received a rare pediatric disease designation from the U.S. Food and Drug Administration. Momenta’s expertise in FcRn mechanisms is especially important for nipocalimab as it supports and accelerates the development of a medicine designed to target a number of autoantibody-driven conditions across several of Janssen’s established therapeutic areas. Janssen expects nipocalimab to contribute to its goals of achieving above-market growth over the mid and long term.

Autoimmune diseases driven partially or completely by autoantibodies represent a novel area where Janssen can significantly improve health outcomes for patients. In autoantibody-driven diseases, the body’s antibodies attack or damage its own proteins, cells and tissues, often with devastating consequences. Autoantibody-driven diseases include Myasthenia Gravis, Hemolytic Diseases of the Fetus and Newborn, warm Autoimmune Hemolytic Anemia, and other serious dermatologic, rheumatic, neurologic, hematologic and renal diseases. An estimated 2.5 percent of the population, or approximately 195 million people worldwide, suffer from some form of autoantibody-driven disease, many of which are orphan and rare diseases.