Recombinant intravenous immunoglobulin (RIVIG) compositions and methods for their production and use

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United States of America Patent

PATENT NO 11801286
APP PUB NO 20220233658A1
SERIAL NO

17707243

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Abstract

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Compositions of recombinant intravenous immunoglobulin (rIVIG) proteins and methods for purification and use of rIVIG proteins. The compositions comprise oligomeric Fc molecules which bind to Fc receptors with high avidity. The rIVIG proteins are useful as immunomodulatory molecules for the treatment of immune disorders including autoimmune diseases, such as refractory immune thrombocytopenia, chronic inflammatory demyelinating polyneuropathy, multiple sclerosis, lupus, Graves Disease, Kawasaki disease, dermatomyositis, myasthenia gravis, Guillain-Barre syndrome, autoimmune hemolytic anemia, and other immune and inflammatory conditions. The rIVIG proteins can also be used as immunomodulators in patients to reduce the immune rejection of organ transplants, stem cell transplants and bone marrow transplantation. Additionally, the present invention provides rIVIG proteins of non-human origin, for use in veterinary immune disorders, such as canine rIVIG proteins for the treatment of dogs suffering from autoimmune hemolytic anemia, immune thrombocytopenia purpura, rheumatoid arthritis, or other canine immune disorder.

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Patent Owner(s)

Patent OwnerAddress
AB BIOSCIENCES INCALLSTON MA 02134

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Hsiu-Ching Concord, US 10 21
Hsu, Yen-Ming Concord, US 46 292
Lee, Jeng-Shin Concord, US 11 18

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