IP Library › Granted Patent US 12,644,888
Granted Patent B2
US 12,644,888 · App. 17/626,679 · Granted Jun 2, 2026

Methods for treating cerebral vasospasm with a PD-1 agonist

Inventors: Michael Lim (Reisterstown, MD); Christopher Jackson (Baltimore, MD); Rafael J. Tamargo (Baltimore, MD); John Choi (Palo Alto, CA)
Assignee: The Johns Hopkins University
G01N33/56972A61K38/1774A61K39/3955A61P9/10C07K14/70532A61K2039/505C07K2319/00G01N2333/70532G01N2800/2871G01N2800/52
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Quick Facts
Patent No.
US 12,644,888
App. No.
17/626,679
Granted
Jun 2, 2026
Kind
B2
Abstract

The present invention relates to the field of inflammation. More specifically, the present invention provides compositions and methods for treating cerebral inflammation and associated sequelae thereof including cerebral vasospasm. In one embodiment, a method for treating cerebral vasospasm in a patient comprises the step of administering to the patient a PD-1 agonist, wherein a blood sample obtained from the patient comprises elevated PD-1 expression on monocytes relative to a control.

Claims (18)

1 . A method comprising:

a. measuring programmed death-1 (PD-1) expression on monocytes in a blood sample obtained from a patient, wherein the patient has suffered a hemorrhagic or ischemic stroke; and

b. treating the patient with soluble PD-L1 if the PD-1 expression is increased relative to a control.

2 . The method of claim 1 , wherein the PD-1 expression on monocytes is measured using flow cytometry.

3 . The method of claim 1 , wherein the soluble PD-L1 is a PD-L1 fusion protein.

4 . The method of claim 1 , wherein the patient suffers from an aneurysmal subarachnoid hemorrhage.

5 . The method of claim 1 , wherein the patient has cerebral vasospasm.

6 . The method of claim 1 , wherein the patient has suffered a brain injury.

7 . A method comprising administering to a patient having an increased PD-1 expression on monocytes relative to a control soluble PD-L1, wherein the patient has suffered a hemorrhagic or ischemic stroke.

8 . The method of claim 7 , wherein the soluble PD-L1 is a PD-L1 fusion protein.

9 . The method of claim 7 , wherein the patient suffers from an aneurysmal subarachnoid hemorrhage.

10 . The method of claim 7 , wherein the patient has cerebral vasospasm.

11 . The method of claim 7 , wherein the patient has suffered a brain injury.

12 . The method of claim 7 , wherein the patient has or is suspected of having a monocyte-cerebral inflammation.

13 . A method for treating cerebral vasospasm in a patient comprising the step of administering to the patient soluble PD-1, wherein a blood sample obtained from the patient comprises elevated PD-1 expression on monocytes relative to a control.

14 . The method of claim 13 , wherein the patient has suffered a brain injury.

15 . The method of claim 13 , wherein the patient has suffered a stroke.

16 . The method of claim 13 , wherein the patient has suffered a myocardial infarction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 12, 2022
From: LIM, MICHAEL; JACKSON, CHRISTOPHER; TAMARGO, RAFAEL J.; CHOI, JOHN
To: THE JOHNS HOPKINS UNIVERSITY
Reel/Frame 060487/0064 →
Continuity (2)
Provisional Application 62873439 · Jul 12, 2019
Related Publication 20220252599A1 · Aug 11, 2022
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