IP Library › Granted Patent US 12,520,839
Granted Patent B2
US 12,520,839 · App. 17/881,453 · Granted Jan 13, 2026

Methods and compositions for cryopreservation of cell therapies

Inventors: Joshua Kellner (Richmond, TX); Eric Yvon (Bethesda, MD)
Assignee: The George Washington University
A01N1/126A01N1/125
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Quick Facts
Patent No.
US 12,520,839
App. No.
17/881,453
Granted
Jan 13, 2026
Kind
B2
Abstract

The disclosure provides for cryopreservation compositions and methods of use thereof. Aspects of the present disclosure provide for cryopreservation compositions useful in the freezing and thawing of cell therapies. Other aspects of the present disclosure provide for systems for use in the cryopreservation cell therapies. Still other aspects of the present disclosure provide for methods of cryopreserving cell therapies.

Claims (29)

1 . A cryopreservation composition for immune cells, comprising:

a cryopreservation medium having at least one ADAM metallopeptidase domain 17 (ADAM17) inhibitor,

wherein the cryopreservation medium is a RPMI solution; and

wherein the cryopreservation composition preserves the phenotype and/or function of immune cells.

2 . The cryopreservation composition of claim 1 , wherein the cryopreservation medium further comprises one or more cryoprotectants, a serum, or any combination thereof.

3 . The cryopreservation composition of claim 2 , wherein the one or more cryoprotectants comprises sucrose, dextran, trehalose, percoll, polyethylene glycol, polyvinyl pyrrolidone, serum albumin, ficol, maltose, polyvinylalcohol (PVA), ethylene glycol, glycerol, dimethyl sulfoxide (DMSO), or any combinations thereof, and/or wherein the serum comprises albumins, growth factors, growth inhibitors, or any combinations thereof.

4 . The cryopreservation composition of claim 1 , wherein the at least one ADAM17 inhibitor comprises Nitroarginine analog A, GW3333, TMI-1, BMS-561392, DPC-3333, TMI-2, BMS-566394, TMI-005, apratastat, GW4459, W-3646, IK-682, GI-5402, GI-245402, BB-2983, DPC-A38088, DPH-067517, R-618, INCB003619, INCB007839, INCB7839, TAPI-0, TAPI-1, TAPI-2, ZLDI-8, CH-138, or any combinations thereof.

5 . The cryopreservation composition of claim 4 , wherein the at least one ADAM17 inhibitor is TAPI-2.

6 . The cryopreservation composition of claim 1 further comprising water, saline, pH buffering agents, carriers, excipients, stabilizers, buffers, reagents, amino acids, carbohydrates, vitamins, antibiotics, or any combinations thereof.

7 . A system for use in the cryopreservation of immune cells, the system comprising:

a cryopreservation medium having at least one ADAM metallopeptidase domain 17 (ADAM17) inhibitor,

wherein the cryopreservation medium is a RPMI solution,

wherein the cryopreservation medium preserves the phenotype and/or function of immune cells; and

a washing medium optionally having at least one ADAM metallopeptidase domain 17 (ADAM17) inhibitor.

8 . The system of claim 7 , wherein the cryopreservation medium further comprises one or more cryoprotectants, a serum, or any combination thereof.

9 . The system of claim 7 , wherein the at least one ADAM17 inhibitor in the cryopreservation medium comprises Nitroarginine analog A, GW3333, TMI-1, BMS-561392, DPC-3333, TMI-2, BMS-566394, TMI-005, apratastat, GW4459, W-3646, IK-682, GI-5402, GI-245402, BB-2983, DPC-A38088, DPH-067517, R-618, INCB003619, INCB007839, INCB7839, TAPI-0, TAPI-1, TAPI-2, ZLDI-8, CH-138, or any combinations thereof.

10 . The system of claim 7 , wherein the washing medium further comprises one or more cryoprotectants, a serum, or any combination thereof in an aqueous solution.

11 . The system of claim 7 , wherein the at least one ADAM17 inhibitor in the washing medium comprises Nitroarginine analog A, GW3333, TMI-1, BMS-561392, DPC-3333, TMI-2, BMS-566394, TMI-005, apratastat, GW4459, W-3646, IK-682, GI-5402, GI-245402, BB-2983, DPC-A38088, DPH-067517, R-618, INCB003619, INCB007839, INCB7839, TAPI-0, TAPI-1, TAPI-2, ZLDI-8, CH-138, or any combinations thereof.

12 . A method of cryopreserving immune cells, the method comprising:

freezing a suspension comprising immune cells and the cryopreservation composition of claim 1 , and

wherein the cryopreservation composition preserves the phenotype and/or function of the immune cells for use in a cell therapy.

13 . The method of claim 12 , further comprising thawing the suspension after freezing and washing thawed suspension in a washing medium, wherein the washing medium optionally having at least one ADAM metallopeptidase domain 17 (ADAM17) inhibitor.

14 . The method of claim 12 , wherein the immune cells comprises CAR-T cells, NK cells, engineered TCRs, TIL, Tregs, CAR-Tregs, CAAR-T cells, T cells, monocytes, B lymphocytes, T lymphocytes, which are natural or genetically modified, such as regulatory T lymphocytes, cytotoxic T lymphocytes, helper T lymphocytes, chimeric antigen receptor (CAR) T lymphocytes, or any combination thereof.

15 . The method of claim 13 , wherein the immune cells comprising the thawed suspension have one or more surface markers that were present prior to freezing, the one or more surface markers comprising CD16, CD62L, CD30, CD40, CD44, IL15Ra, notch expression markers, or any combination thereof.

16 . The method of claim 13 , further comprising administering to a subject in need of immune cell therapy the thawed suspension.

17 . The method of claim 12 , further comprising thawing the suspension after freezing; washing the thawed suspension in a washing medium having at least one ADAM17 inhibitor; and administering to a subject in need of immune cell therapy the thawed and washed suspension.

18 . The cryopreservation composition of claim 1 , wherein the immune cells comprises CAR-T cells, NK cells, engineered TCRs, TIL, Tregs, CAR-Tregs, CAAR-T cells, T cells, monocytes, B lymphocytes, T lymphocytes, which are natural or genetically modified, such as regulatory T lymphocytes, cytotoxic T lymphocytes, helper T lymphocytes, chimeric antigen receptor (CAR) T lymphocytes, or any combination thereof.

19 . The cryopreservation composition of claim 1 , wherein the phenotype of the immune cells comprises the expression of one or more surface markers, and wherein the one or more surface markers comprise CD16, CD62L, CD30, CD40, CD44, IL15Ra, notch expression markers, or any combination thereof.

20 . The cryopreservation composition of claim 1 , wherein the function of the immune cells comprises Antibody Dependent Cell Cytotoxicity (ADCC) against one or more target cells.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2022
From: YVON, ERIC; KELLNER, JOSHUA
To: THE GEORGE WASHINGTON UNIVERSITY
Reel/Frame 061066/0320 →
Continuity (3)
Continuation PCTUS2021017081 · Feb 8, 2021
Provisional Application 62971142 · Feb 6, 2020
Related Publication 20220394971A1 · Dec 15, 2022
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