The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 31, 2024

Filed:

Oct. 27, 2023
Applicant:

Navidea Biopharmaceuticals, Inc., Columbus, OH (US);

Inventors:

David A. Ralph, Columbus, OH (US);

Jeffrey Scott Arnold, Andover, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/77 (2006.01); A61K 31/80 (2006.01); A61K 45/06 (2006.01);
U.S. Cl.
CPC ...
A61K 31/77 (2013.01); A61K 31/80 (2013.01); A61K 45/06 (2013.01);
Abstract

Provided are compounds, compositions, methods, and kits for increasing target specificity of a mannosylated carbohydrate polymeric therapeutic or diagnostic compound to reduce or eliminate localization of the mannosylated carbohydrate polymeric therapeutic or diagnostic compound to off-target sites. Mannosylated carbohydrate polymers are synthesized to be modified to be either polyanionic (i.e., net negatively charged) or electrostatically neutral, and using these polyanionic or neutral mannosylated carbohydrate polymers as competitors for polycationic (i.e., net positively charged) mannosylated carbohydrate polymers carrying small molecule drug payloads or imaging moieties to CD206 expressing cells in target tissues, such as tumors or other sites of inflammation.


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