Patent ID: 8415326

Claim:
A pharmaceutical composition for treatment of disorders selected from the group containing joint disorders including osteoarthritis and rheumatoid arthritis, inflammatory disorders, and other rheumatoid conditions comprising chito-oligomers of N-acetyl glucosamine (NAG) and glucosamine, wherein the composition is prepared by a process comprising a first step of partially deacetylating chitin and a second step of enzymatically hydrolysing the partially deacetylated chitin, the chain length of the chito-oligomers is in the range of about 2-50, the degree of deacetylation is in the range of about 0-70%, the composition comprises chito-oligomers having a size larger than a dimer, the composition has an inhibitory effect on chitinase-like proteins, and at least about 10% of the chito-oligomers have a chain length of 2 to 12.