IP Library Granted Patent US 11,618,733
Granted Patent B2
US 11,618,733 · App. 17/465,181 · Granted Apr 4, 2023

Crystalline salts of a plasma kallikrein inhibitor

Inventors: Yahya El-Kattan (Vestavia Hills, AL); Yarlagadda S. Babu (Birmingham, AL)
Assignee: BioCryst Pharmaceuticals, Inc.
C07D231/14A61K9/0029A61K9/0053A23L33/10A23V2002/00C07B2200/13
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Quick Facts
Patent No.
US 11,618,733
App. No.
17/465,181
Granted
Apr 4, 2023
Kind
B2
Abstract

Disclosed are crystalline salts of Compound I, methods of preparing them, and related pharmaceutical preparations thereof. Also disclosed are methods of treatment using the crystalline salts of the invention.

Claims (18)

1. A method of treating hereditary angioedema, comprising administering to a subject in need a pharmaceutical composition comprising a bis(hydrochloride) crystalline salt of Compound I,

and a pharmaceutically acceptable carrier;

wherein the pharmaceutical composition is an oral dosage form; and the oral dosage form contains about 75 mg to about 250 mg of the bis(hydrochloride) crystalline salt of Compound I.

2. The method of claim 1 , wherein the oral dosage form contains about 75 mg to about 175 mg of the bis(hydrochloride) crystalline salt of Compound I.

3. The method of claim 1 , wherein the oral dosage form contains about 100 mg to about 250 mg of the bis(hydrochloride) crystalline salt of Compound I.

4. The method of claim 1 , wherein the oral dosage form contains about 100 mg to about 200 mg of the bis(hydrochloride) crystalline salt of Compound I.

5. The method of claim 1 , wherein the oral dosage form contains about 100 mg to about 175 mg of the bis(hydrochloride) crystalline salt of Compound I.

6. The method of claim 1 , wherein the oral dosage form contains about 125 mg to about 250 mg of the bis(hydrochloride) crystalline salt of Compound I.

7. The method of claim 1 , wherein the oral dosage form contains about 125 mg to about 200 mg of the bis(hydrochloride) crystalline salt of Compound I.

8. The method of claim 1 , wherein the oral dosage form contains about 125 mg to about 175 mg of the bis(hydrochloride) crystalline salt of Compound I.

9. The method of claim 1 , wherein the oral dosage form contains about 100 mg of the bis(hydrochloride) crystalline salt of Compound I.

10. The method of claim 1 , wherein the oral dosage form contains about 125 mg of the bis(hydrochloride) crystalline salt of Compound I.

11. The method of claim 1 , wherein the oral dosage form contains about 150 mg of the bis(hydrochloride) crystalline salt of Compound I.

12. The method of claim 1 , wherein the oral dosage form contains about 175 mg of the bis(hydrochloride) crystalline salt of Compound I.

13. The method of claim 1 , wherein the oral dosage form contains about 200 mg of the bis(hydrochloride) crystalline salt of Compound I.

14. The method of claim 1 , wherein the oral dosage form is a capsule, an ingestible tablet, a buccal tablet, a troche, an elixir, a suspension, a syrup, a powder, or a wafer.

15. The method of claim 14 , wherein the oral dosage form is a capsule.

16. The method of claim 1 , wherein the hereditary angioedema is type I hereditary angioedema, type II hereditary angioedema, or type III hereditary angioedema.

Assignments (4)
SECURITY INTEREST Recorded Jan 23, 2026
From: BIOCRYST PHARMACEUTICALS, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 074485/0651 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL RECORDED AT REEL 063363/FRAME 0873 Recorded Oct 8, 2025
From: BIOPHARMA CREDIT PLC
To: BIOCRYST PHARMACEUTICALS, INC.
Reel/Frame 073056/0492 →
PATENT SECURITY AGREEMENT Recorded Apr 19, 2023
From: BIOCRYST PHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 063363/0873 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2022
From: EL-KATTAN, YAHYA; BABU, YARLAGADDA S.
To: BIOCRYST PHARMACEUTICALS, INC.
Reel/Frame 059265/0791 →