IP Library › Patent Application 18264810
Patent Application
App. No. 18/264,810

TREATMENTS OF HEREDITARY ANGIOEDEMA

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
18/264,810
Abstract

The present invention relates to treatments of hereditary angioedema (HAE). In particular, the present invention provides on-demand treatments of hereditary angioedema (HAE) by orally administering a plasma kallikrein inhibitor to a patient in need thereof on-demand.

Claims (38)

1 . A method for treating an attack of hereditary angioedema (HAE) on-demand comprising: orally administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof to a patient in need thereof on-demand, wherein the treatment reduces the need for a second treatment of the HAE attack within 4 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof,

2 . The method according to claim 1 , wherein the treatment reduces the need for a second treatment of the HAE attack within 12 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

3 . The method according to claim 1 , wherein the treatment reduces the need for a second treatment of the HAE attack within 24 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

4 . The method according to claim 1 , wherein the treatment avoids the need for a second treatment of the HAE attack within 4 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

5 . The method according to claim 4 , wherein the treatment avoids the need for a second treatment of the HAE attack within 12 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

6 . The method according to claim 5 , wherein the treatment avoids the need for a second treatment of the HAE attack within 24 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

7 . The method according to claim 1 , wherein the patient is not administered a second treatment of the HAE attack within 4 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

8 . The method according to claim 7 , wherein the patient is not administered a second treatment of the HAE attack within 12 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

9 . The method according to claim 8 , wherein the patient is not administered a second treatment of the HAE attack within 24 hours of taking the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

10 . The method according to claim 1 , wherein the attack is resolved without administering a second treatment to the patient.

11 . A method for treating an attack of hereditary angioedema (HAE) on-demand comprising: orally administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof to a patient in need thereof on-demand, wherein symptom relief of the attack starts within 3 hours of administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof,

12 . The method according to claim 11 , wherein “symptom relief” means that the attack is rated as “a little better” or higher for two consecutive time points when assessed according to the 7-point transition questions (7TQ).

13 . The method according to claim 12 , wherein the “two consecutive time points” are about 30 minutes apart.

14 . The method according to claim 11 , wherein the symptom relief of the attack starts between about 1.5 and 3.0 hours after administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

15 . A method for treating an attack of hereditary angioedema (HAE) on-demand comprising: orally administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof to a patient in need thereof on-demand, wherein symptom relief of the attack starts between about 1.5 and 9 hours after administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof,

16 . The method according to claim 15 , wherein “symptom relief” means that a 50% reduction in composite VAS score occurred for three consecutive time points.

17 . The method according to claim 16 , wherein the “three consecutive time points” are about 30 minutes apart within 0-4 hours after administration of the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof and, if necessary, about 1 hour apart within 4-12 hours after administration of the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

18 . The method according to claim 15 , wherein the symptom relief of the attack starts between about 3 and 9 hours after administering the compound.

19 . A method for treating an attack of hereditary angioedema (HAE) on-demand comprising: orally administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof to a patient in need thereof on-demand, wherein the treatment halts the progress of the attack such that the symptoms of the attack do not worsen within a 12 hour period after administration of the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof,

20 . The method according to claim 19 , wherein “do not worsen” means that the attack did not worsen by one level or more on the 5LS within the 12 hours of administering the compound.

21 . The method according to claim 19 , wherein the treatment halts the progress of the attack such that the symptoms of the attack do not worsen within a 24 hour period after administration of the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof.

22 . The method according to claim 21 , wherein “do not worsen” means that the attack did not worsen by one level or more on the 5LS within the 24 hours of administering the compound.

23 . A method for treating an attack of hereditary angioedema (HAE) on-demand comprising: orally administering the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof to a patient in need thereof on-demand, wherein the treatment improves the severity of the attack to “none” (when assessed according to the 5LS),

24 . The method according to claim 23 , wherein the severity improves to “none” within 24 hours of administering the compound.

25 . The method according to claim 23 , wherein the severity improves to “none” within 12 hours of administering the compound.

26 . The method according to claim 23 , wherein the severity improves to “none” within 6 hours of administering the compound.

27 . The method according to claim 1 , wherein the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof is for use in treating an attack of hereditary angioedema (HAE) on-demand and is orally administered on-demand upon recognition of a symptom of an HAE attack.

28 . The method according to claim 27 , wherein the symptom of an HAE attack recognised is at least one of: swelling of tissues; fatigue; headache; muscle aches; skin tingling; abdominal pain; nausea; vomiting; diarrhoea; difficulty swallowing; hoarseness; shortness of breath; or mood changes.

29 . The method according to claim 28 , wherein the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof is orally administered on-demand within 1 hour of the symptom of an HAE attack being recognised.

30 . The method according to claim 29 , wherein the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof is orally administered on-demand within 30 minutes, within 20 minutes, within 10 minutes, or within 5 minutes of the symptom of an HAE attack being recognised.

31 . The method according to claim 30 , wherein the compound of Formula A or a pharmaceutically acceptable salt and/or solvate thereof is orally administered on-demand in the prodromal phase of an HAE attack.

32 . The method according to claim 31 , wherein the symptom recognised is at least one of: a slight swelling, abdominal pain or reddening of the skin.

33 . The method according to claim 31 , wherein the symptom recognised is Erythema marginatum.

34 . The method according to claim 1 , wherein the treatment shortens the duration of the HAE attack.

35 . The method according to claim 1 , wherein the compound or a pharmaceutically acceptable salt and/or solvate thereof is administered as an oral dosage form comprising: (i) the compound or a pharmaceutically acceptable salt and/or solvate thereof, and (ii) a pharmaceutically acceptable excipient.

36 . The method according to claim 35 , wherein the oral dosage form is a tablet comprising microcrystalline cellulose as a diluent, croscarmellose sodium as a disintegrant, polyvinyl pyrrolidone as a binder, and optionally magnesium stearate as a lubricant.

37 . The method according to claim 1 , wherein the patient is administered about 600 mg of the compound of formula A.

38 . The method according to claim 37 , wherein each dosage amount is administered as two tablets each comprising about 300 mg of the compound of formula A.

Assignments (6)
ASSIGNMENT OF SECURITY INTEREST Recorded Jan 15, 2026
From: KALVISTA PHARMACEUTICALS LIMITED; DRI HEALTHCARE ACQUISITION LP
To: DRI UK LP
Reel/Frame 074410/0366 →
SECOND AMENDMENT TO THE PURCHASE AND SALE AGREEMENT DATED MAY 22, 2025 Recorded Jan 15, 2026
From: DRI HEALTHCARE ACQUISITIONS LP; KALVISTA PHARMACEUTICALS LIMITED; KALVISTA PHARMACEUTICALS INC.
To: DRI UK LP
Reel/Frame 074387/0900 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 15, 2026
From: DRI HEALTHCARE ACQUISITIONS LP
To: DRI UK LP
Reel/Frame 073489/0961 →
SECURITY INTEREST Recorded Nov 11, 2024
From: KALVISTA PHARMACEUTICALS LIMITED
To: DRI HEALTHCARE ACQUISITIONS LP
Reel/Frame 069334/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 9, 2023
From: MARSH, SALLY LOUISE; YEA, CHRISTOPHER MARTYN
To: KALVISTA PHARMACEUTICALS LIMITED
Reel/Frame 064536/0282 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 9, 2023
From: FEENER, EDWARD PAUL; MAETZEL, ANDREAS; SMITH, MICHAEL DAVID; KALVISTA PHARMACEUTICALS, INC.
To: KALVISTA PHARMACEUTICALS LIMITED
Reel/Frame 064537/0258 →