IP Library Granted Patent US 12,296,013
Granted Patent B2
US 12,296,013 · App. 17/746,740 · Granted May 13, 2025

Photosensitizing antibody-fluorophore conjugates

Inventors: Hisataka Kobayashi (Laurel, MD); Peter Choyke (Rockville, MD)
Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
A61K45/06A61K31/704A61K41/0071A61K47/6803A61K47/6869A61K49/0032A61K49/0058C07K16/2863C07K16/30C07K16/3069C07K16/32G01N33/5011A41D13/0002A41D2400/32A44C15/00A61K2039/505C07K2317/24C07K2317/73C07K2317/77
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Quick Facts
Patent No.
US 12,296,013
App. No.
17/746,740
Granted
May 13, 2025
Kind
B2
Abstract

The present disclosure relates to compositions and methods of killing cells in vitro or in vivo. In particular examples, the method includes contacting a cell having a cell surface protein with a therapeutically effective amount of an antibody-IR700 molecule, wherein the antibody specifically binds to the cell surface protein. In particular examples the antibody recognizes a tumor-specific antigen on the surface of a tumor cell. The cell is subsequently irradiated, such as at a wavelength of 660 to 740 nm at a dose of at least 1 J cm −2 , thereby killing the cell. Also provided are wearable devices that include an article of clothing, jewelry, or covering; and an NIR LED incorporated into the article, which can be used with the disclosed methods.

Claims (17)

1. A phototoxic pharmaceutical composition, comprising:

a phototoxic conjugate comprising an IR700 molecule conjugated to an antibody that binds to a cell surface protein on a cell, wherein the antibody is an anti-PSMA antibody that is J591 or an antigen binding fragment thereof; and

a pharmaceutically acceptable carrier.

2. The phototoxic pharmaceutical composition of claim 1 , wherein the antigen binding fragment is selected from a Fab fragment, a Fab′ fragment, a F(ab′) 2 fragment, a single chain Fv (scFv) or a disulfide stabilized Fv (dsFv).

3. The phototoxic pharmaceutical composition of claim 1 , wherein the cell is a tumor cell.

4. A combination, comprising:

a first pharmaceutical composition comprising a phototoxic conjugate comprising an IR700 molecule conjugated to an antibody that binds to a cell surface protein on a cell, wherein the antibody is an anti-PSMA antibody that is J591 or an antigen binding fragment thereof; and

a second pharmaceutical composition comprising an additional therapeutic agent.

5. The combination of claim 4 , wherein the first composition comprises a pharmaceutically acceptable carrier.

6. The combination of claim 4 , wherein the second composition comprises a pharmaceutically acceptable carrier.

7. The combination of claim 4 , wherein the first and second pharmaceutical composition are formulated separately.

8. The combination of claim 4 , wherein the additional therapeutic agent is an anti-cancer or anti-neoplastic agent.

9. The combination of claim 4 , wherein the additional therapeutic agent is a radiotherapeutic agent, a chemotherapeutic agent, an antibiotic, an alkylating agent, an antioxidant, or a kinase inhibitor.

10. The combination of claim 4 , wherein the additional therapeutic agent is selected from a microtubule binding agent, a DNA intercalator or cross-linker, a DNA synthesis inhibitor, a DNA or RNA transcription inhibitor, an antibody, an enzyme, an enzyme inhibitor and a compound that affects gene regulation.

11. The combination of claim 4 , wherein the additional therapeutic agent is paclitaxel, docetaxel, vinblastine, vindesine, vinorelbine, epothilone, colchicine, dolastatin 15, nocodazole, podophyllotoxin, rhizoxin, actinomycin D, daunorubicin, cisplatin, carboplatin, oxaliplatin, mitomycin C, bleomycin, chlorambucil, cyclophosphamide, methotrexate, 5-fluro-5′-deoxyuridine, 5-fluorouracil, camptothecin, etoposide, formestane, trichostatin, raloxifene, 5-azacytidine, 5-aza-2′-deoxycytidine, tamoxifen, 4-hydroxytamoxifen, mifepristone, imatinib, gefitinib, erlotinib, adriamycine, apigenin, rapamycine, zebularine, cimetidine, interleukin-2 (IL-2), or an anti-CTLA4 antibody.

12. The combination of claim 4 , wherein the antigen binding fragment is selected from a Fab fragment, a Fab′ fragment, a F(ab′) 2 fragment, a single chain Fv (scFv) or a disulfide stabilized Fv (dsFv).

13. The combination of claim 4 , wherein the cell is a tumor cell.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 17, 2022
From: KOBAYASHI, HISATAKA; CHOYKE, PETER
To: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES
Reel/Frame 059936/0656 →
Continuity (5)
Continuation 16695674 · Nov 26, 2019
Continuation 13972532 · Aug 21, 2013
Division 13180111 · Jul 11, 2011
Provisional Application 61363079 · Jul 9, 2010
Related Publication 20220288210A1 · Sep 15, 2022
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