IP Library Granted Patent US 12,440,566
Granted Patent B2
US 12,440,566 · App. 18/128,550 · Granted Oct 14, 2025

Compositions and kits for omeprazole suspension

Inventors: Zeus Pendon (Woburn, MA); Steven Dinh (Burlington, MA)
Assignee: AZURITY PHARMACEUTICALS, INC.
A61K47/10A61K9/10A61K31/4439A61K47/02A61K47/14A61K47/24A61K47/38
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Quick Facts
Patent No.
US 12,440,566
App. No.
18/128,550
Granted
Oct 14, 2025
Kind
B2
Abstract

Disclosed herein are liquid diluents, formulations, and kits for preparing reconstituted suspensions of a proton pump inhibitor (e.g., omeprazole). The present disclosure also provides formulations for liquid diluents that do not have a tendency for gel formation following exposure to freeze-thaw cycles.

Claims (31)

1. A freeze-thaw stable liquid diluent for reconstituting a proton pump inhibitor, comprising:

a poloxamer,

a suspending agent, wherein the suspending agent is sodium carboxymethyl cellulose (CMC), microcrystalline cellulose, or any combination thereof;

sodium bicarbonate,

simethicone emulsion,

a preservative,

water, and

optionally one or more excipients selected from a flavoring agent, a sweetener, and coloring agent,

wherein the freeze-thaw stable liquid diluent does not comprise glycerin or xanthan gum; and

wherein the freeze-thaw stable liquid diluent is stable for at least 30 days at 5±3° C. and is resistant to gel formation for at least one freeze-thaw cycle.

2. The freeze-thaw stable liquid diluent of claim 1 , wherein the poloxamer is poloxamer 188.

3. The freeze-thaw stable liquid diluent of claim 1 , wherein the poloxamer is present in the freeze-thaw stable liquid diluent at 1% w/v, 2% w/v, or 4% w/v.

4. The freeze-thaw stable liquid diluent of claim 1 , wherein the sodium bicarbonate is present in the freeze-thaw stable liquid diluent at 4.0%-20% w/v.

5. The freeze-thaw stable liquid diluent of claim 1 , wherein the sodium bicarbonate is present at 10% w/v to 20% w/v in the freeze-thaw stable liquid diluent.

6. The freeze-thaw stable liquid diluent of claim 1 , wherein the sodium bicarbonate is present in the freeze-thaw stable liquid diluent at 8.4% w/v.

7. The freeze-thaw stable liquid diluent of claim 1 , wherein the simethicone emulsion is present in the freeze-thaw stable liquid diluent at 0.15% w/v.

8. The freeze-thaw stable liquid diluent of claim 1 , wherein the preservative comprises benzyl alcohol, ascorbic acid, ascorbyl palmitate, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), sodium benzoate, benzoic acid, sodium bisulfate, sodium metabisulfite, sodium sulfite, parabens, potassium sorbate, vanillin, any pharmaceutically acceptable salts thereof, or any combination thereof.

9. The freeze-thaw stable liquid diluent of claim 8 , wherein the preservative is benzyl alcohol.

10. The freeze-thaw stable liquid diluent of claim 9 , wherein the freeze-thaw stable liquid diluent comprises about 0.5% w/v of benzyl alcohol.

11. The freeze-thaw stable liquid diluent of claim 1 , wherein the preservative is a paraben or a mixture of parabens.

12. The freeze-thaw stable liquid diluent of claim 1 , wherein the freeze-thaw stable liquid diluent comprises the sweetener; wherein the sweetener comprises 70% sorbitol solution and sucralose.

13. The freeze-thaw stable liquid diluent of claim 12 , wherein the 70% sorbitol solution is present in the freeze-thaw stable liquid diluent at 2.5% w/v and the sucralose is present in the freeze-thaw stable liquid diluent at 0.4% w/v.

14. The freeze-thaw stable liquid diluent of claim 1 , wherein the freeze-thaw stable liquid diluent is stable for at least 30 days at 25±5° C.

15. A pharmaceutical composition comprising:

the freeze-thaw stable liquid diluent of claim 1 and a proton pump inhibitor,

wherein the proton pump inhibitor is omeprazole, esomeprazole, lansoprazole, rabeprazole, pantoprazole, or dexlansoprazole.

16. The pharmaceutical composition of claim 15 , wherein the proton pump inhibitor is lansoprazole.

17. The pharmaceutical composition of claim 15 , wherein the proton pump inhibitor is omeprazole.

18. The pharmaceutical composition of claim 17 , wherein the omeprazole is present at 2 mg/mL.

19. The freeze-thaw stable liquid diluent of claim 1 , wherein the freeze-thaw stable liquid diluent has a viscosity of between 50 and 300 mPa s, which is determined using Brookfield Model LVT Viscometer, with a #2 spindle at 30 RPM, at a temperature of 25+/−1° C.

20. The freeze-thaw stable liquid diluent of claim 1 , wherein the freeze-thaw stable liquid diluent does not comprise any co-solvents.

Assignments (4)
CONFIRMATORY GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Mar 17, 2025
From: ARBOR PHARMACEUTICALS, LLC; AZURITY PHARMACEUTICALS, INC.; AZURITY PHARMACEUTICALS IRELAND LIMITED; SILVERGATE PHARMACEUTICALS, INC.
To: HPS INVESTMENT PARTNERS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 070531/0487 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2023
From: PENDON, ZEUS; DINH, STEVEN
To: CUTISPHARMA, INC.
Reel/Frame 064634/0085 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2023
From: PENDON, ZEUS; DINH, STEVEN
To: CUTISPHARMA, INC.
Reel/Frame 064634/0101 →
CHANGE OF NAME Recorded Aug 18, 2023
From: CUTISPHARMA, INC.
To: AZURITY PHARMACEUTICALS, INC.
Reel/Frame 064645/0321 →