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Serving leading biopharmaceutical companies globally:

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US Department of Justice
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Fuji
US Army
Cantor Fitzgerald
QuintilesIMS

Generated: November 17, 2017

DrugPatentWatch Database Preview

Claims for Patent: 8,653,137

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Claims for Patent: 8,653,137

Title:Buffer solutions having selective bactericidal activity against gram negative bacteria and methods of using same
Abstract: Buffer solutions for pharmaceutical preparations that have bactericidal activity preferentially against gram negative bacteria are provided. The buffers have a pH of greater than about 10 or less than about 4.5 with low buffer capacity. Methods of their use in reducing the occurrence of blood stream infections in a mammal is also provided.
Inventor(s): Jeffs; Roger Andrew (Chapel Hill, NC), Zaccardelli; David (Cary, NC)
Assignee: United Therapeutics Corporation (Silver Spring, MD)
Application Number:13/912,753
Patent Claims: 1. A method of reducing occurrence of a bacterial infection in a human suffering from pulmonary arterial hypertension, who is undergoing treatment for said pulmonary hypertension, associated with occurrence of a bacterial infection comprising diluting a starting solution of an active pharmaceutical ingredient other than epoprostenol with a buffer comprising glycine and having a pH of greater than 10 to provide a final solution with a pH of greater than 10 and an amount of the active pharmaceutical ingredient other than epoprostenol effective for treating pulmonary arterial hypertension, and administering said final solution to the human subject in need thereof.

2. The method of claim 1, wherein the buffer further comprises sodium hydroxide.

3. The method of claim 1, wherein the buffer has a pH between 10 and 12.

4. The method of claim 3, wherein the buffer has a pH between 10.2 and 10.8.

5. The method of claim 1, wherein the final solution is administered at a concentration between about 0.001 mg/mL to about 1 mg/mL.

6. The method of claim 1, wherein the final solution is administered at a concentration between about 0.004 mg/mL to about 0.13 mg/mL.

7. The method of claim 1, wherein the administering is by injection.

8. The method of claim 7, wherein the injection is intravenous injection.

9. The method according to claim 1, wherein the administration reduces the growth of gram negative bacteria.

10. The method of claim 4, wherein the final solution is administered intravenously.

11. The method of claim 1, wherein the buffer is a 50 mL solution of 94 mg of glycine, 73.3 mg of sodium chloride, and sodium hydroxide.

12. The method of claim 11, wherein the administering is by injection.

13. The method of claim 12, wherein the injection is intravenous injection.
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Serving leading biopharmaceutical companies globally:

Baxter
McKesson
Express Scripts
Dow
Deloitte
Accenture
QuintilesIMS
US Army
Healthtrust
Mallinckrodt

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