Functionally specific antibodies
First Claim
1. A method of delivering one or more diagnostic or therapeutic agents to a target site within a mammalian or human host, comprising administering to said host two or more different antibody species each having one of said agents attached thereto, wherein each of said antibody species is reactive with a different epitope of the target site and wherein the patterns of cross-reactivity for each antibody species are non-overlapping.
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Abstract
Diagnostic or therapeutic agents are attached to two or more antibody species having non-overlapping patterns of cross-reactivity to increase the relative amount of the active agent(s) delivered to desired target cells compared to non-target cells. The agents may be attached to monoclonal antibodies which bind to cancer cells so that a higher percentage of the active agent(s) localize on the target cells compared to each type of cross-reactive normal tissue.
69 Citations
40 Claims
- 1. A method of delivering one or more diagnostic or therapeutic agents to a target site within a mammalian or human host, comprising administering to said host two or more different antibody species each having one of said agents attached thereto, wherein each of said antibody species is reactive with a different epitope of the target site and wherein the patterns of cross-reactivity for each antibody species are non-overlapping.
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22. A method of producing additive accumulation of two or more immunoconjugates on a target tissue within a human or mammalian host while minimizing additive accumulation of the immunoconjugates on non-target tissues, comprising:
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a) administering a first immunoconjugate comprising a first antibody species to the host; administering one or more additional immunoconjugates each comprising a different antibody species to the host, wherein each of the antibody species reacts with a different epitope of the target tissue and the different antibody species have non-overlapping patterns of cross-reactivity wherein each of said first and additional immunoconjugates comprise a therapeutic or diagnostic agent attached to an antibody species. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 40)
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- 36. A method of administering two or more different therapeutic agents to a human or mammalian host to eradicate target cells, wherein each therapeutic agent is administered at its maximum tolerated dose to the host, while minimizing toxicity toward non-target tissues, comprising attaching each different therapeutic agent to a different antibody species, wherein each, antibody species, reacts with a different epitope of the target cells, and wherein the patterns of cross-reactivity for each antibody species are non-overlapping, and administering each of the resulting immunoconjugates at the maximum tolerated dose to the host.
Specification