Treatment of B-cell associated diseases such as malignances and autoimmune diseases using a cold anti-CD20 antibody/radiolabeled anti-CD22 antibody combination
First Claim
1. A method of treating a disease or condition wherein suppression and/or depletion and/or blocking the function of B-cells is therapeutically beneficial, comprising the steps of:
- (i) administering a therapeutically effective amount of cold (non-radiolabeled) anti-CD20 monoclonal antibody having B cell depleting activity substantially equivalent to Rituxan®
; and
(ii) administering a therapeutically effective amount of a hot (radiolabeled) anti-CD22 antibody or fragment thereof;
wherein said anti-CD20 antibody and said radiolabeled anti-CD22 antibody or fragment are administered separately or in combination, and in either order.
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Accused Products
Abstract
Treatment of B-cell associated diseases including autoimmune and B-cell malignancies such as leukemias, lymphomas, using the combination of an anti-CD20 antibody, preferably RITUXAN® and a radiolabeled anti-CD22 antibody, preferably an 90Y labeled humanized anti-CD22 antibody, is described. These therapeutic regimens provide for enhanced depletion of B cells, and therefore reduce the risk in B cell malignancy treatment of relapse associated with RITUXAN® and, moreover, provide for prolonged immunosuppression of B-cell immune responses, especially in the context of autoimmune diseases and transplant.
88 Citations
27 Claims
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1. A method of treating a disease or condition wherein suppression and/or depletion and/or blocking the function of B-cells is therapeutically beneficial, comprising the steps of:
-
(i) administering a therapeutically effective amount of cold (non-radiolabeled) anti-CD20 monoclonal antibody having B cell depleting activity substantially equivalent to Rituxan®
; and
(ii) administering a therapeutically effective amount of a hot (radiolabeled) anti-CD22 antibody or fragment thereof;
wherein said anti-CD20 antibody and said radiolabeled anti-CD22 antibody or fragment are administered separately or in combination, and in either order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification