IP Library Granted Patent US 11,007,272
Granted Patent B1
US 11,007,272 · App. 15/729,635 · Granted May 18, 2021

Compounds and methods for diagnosis and treatment of viral infections

Inventors: Frederick O. Cope (Dublin, OH); David A. Ralph (Columbux, OH)
Assignee: Navidea Biopharmaceuticals, Inc.
A61K47/61A61K31/122A61K31/351A61K31/573A61K39/39566A61K47/36A61K47/6833A61K47/6841A61P31/14C07K16/2896C08B37/0021C12N2770/24063
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Quick Facts
Patent No.
US 11,007,272
App. No.
15/729,635
Granted
May 18, 2021
Kind
B1
Abstract

Compositions and methods of using these compositions that can include a targeting moiety and a therapeutic agent are described herein. These compositions can be used for diagnosing and/or treating flaviviridae-family viruses including Zika virus, dengue virus, and yellow fever.

Claims (15)

1. A method of treating a disease comprising administering to a subject in need thereof an effective amount of a compound of Formula (II):

wherein each X is independently H, L 1 -A, or L 2 -R; each L 1 and L 2 are independently linkers; each A independently comprises a therapeutic agent or a detection label or H; each R independently comprises a CD206 targeting moiety or H; and n is an integer greater than zero; and wherein at least one R is a CD206 targeting moiety and at least one A is a chemotherapeutic agent wherein the disease is selected from Zika Virus, Yellow Fever, and Dengue Fever.

2. The method of claim 1 , wherein a linker is used to attach the one or more CD206 targeting moieties and/or one or more chemotherapeutic agent.

3. The method of claim 1 , wherein at least one L 1 comprises a degradable linker.

4. The method of claim 1 , wherein at least one L 1 comprises a hydrolysable linker.

5. The method of claim 1 , wherein at least one L 1 comprises an acid-sensitive linker.

6. The method of claim 1 , wherein treatment is effective through binding of the compound to the CD206 expressing cells of the subject and not through binding to the virus.

7. The method of claim 1 , wherein administration of the compound treats the disease and decreases disease causing virus through binding of the subject's CD206 expressing cells.

8. The method of claim 1 , wherein the chemotherapeutic agent is doxorubicin or dexamethasone.

9. A method of targeting zika virus by targeting macrophages comprising administering to a subject in need thereof an effective amount of a compound of Formula (II):

wherein each X is independently H, L 1 -A, or L 2 -R; each L 1 and L 2 are independently linkers; each A independently comprises a therapeutic agent or a detection label or H; each R independently comprises a CD206 targeting moiety or H; and n is an integer greater than zero; and wherein at least one R is a CD206 targeting moiety and at least one A is a chemotherapeutic agent to treat the disease and decrease the amount of disease causing virus.

10. The method of claim 9 , wherein administration of the compound treats the disease and decreases disease causing virus through binding of the subject's CD206 expressing cells.

11. The method of claim 9 , wherein the chemotherapeutic agent is doxorubicin or dexamethasone.

12. A method of treating a disease caused by infection by a flaviviridae family virus comprising administering to a subject in need thereof an effective amount of a compound of Formula (II):

wherein each X is independently H, L 1 -A, or L 2 -R; each L 1 and L 2 are independently linkers; each A independently comprises a therapeutic agent or a detection label or H; each R independently comprises a CD206 targeting moiety or H; and n is an integer greater than zero; and wherein at least one R is a CD206 targeting moiety and at least one A is doxorubicin or dexamethasone.

Assignments (6)
US BANKRUPTCY COURT SALE ORDER DATED JAN. 30, 2026 TO RELEASE SECURITY INTEREST RECORDED AT 069165 / 0332 Recorded Feb 12, 2026
From: SCOTT, JOHN KIM, JR.
To: NAVIDEA BIOPHARMACEUTICALS, INC.
Reel/Frame 074831/0644 →
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY INFORMATION PREVIOUSLY RECORDED ON REEL 68711 FRAME 393. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT. Recorded Sep 27, 2024
From: NAVIDEA BIOPHARMACEUTICALS, INC.
To: SCOTT, JOHN KIM, JR.
Reel/Frame 069165/0332 →
SECURITY INTEREST Recorded Sep 26, 2024
From: NAVIDEA BIOPHARMACEUTICALS, INC.
To: NAVIDEA BIOPHARMACEUTICALS, INC.
Reel/Frame 068711/0393 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 14, 2021
From: RALPH, DAVID A.
To: NAVIDEA BIOPHARMACEUTICALS, INC.
Reel/Frame 055925/0960 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 13, 2019
From: COPE, FREDERICK O.
To: NAVIDEA BIOPHARMACEUTICALS, INC.
Reel/Frame 050040/0350 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 11, 2019
From: COPE, FREDERICK O.
To: NAVIDEA BIOPHARMACEUTICALS, INC.
Reel/Frame 049727/0618 →
Continuity (1)
Provisional Application 62405780 · Oct 7, 2016