Claims for Patent: 5,508,269

Summary for Patent: 5,508,269

Title:	Aminoglycoside formulation for aerosolization
Abstract:	An aminoglycoside formulation for delivery by aerosolization. The concentrated aminoglycoside formulation containing an efficacious amount of aminoglycoside able to inhibit 95-100% of susceptible bacteria. Aminoglycoside formulated in 5 ml solution of a quarter normal saline having pH between 5.5 and 6.5. The method for treatment of endobronchial infections by a produced by a formulation delivered as an aerosol having mass medium average diameter predominantly between 1 to 5 .mu., produced by a jet or ultrasonic nebulizer.
Inventor(s):	Smith; Arnold L. (Columbia, MO), Ramsey; Bonnie W. (Seattle, WA), Montgomery; Alan B. (Bellevue, WA)
Assignee:	Pathogenesis Corporation (Seattle, WA)
Application Number:	08/325,705
Patent Claims:	1. An aerosol formulation for suppression and inhibition of at least 95% of susceptible bacteria in endobronchial space of a patient suffering from the endobronchial infection, said formulation comprising from about 200 mg to about 400 of aminoglycoside dissolved in about 5 ml of solution containing about 0.225% of sodium chloride; said formulation having pH between about 5.5 and 6.5; said formulation administered by aerosolization using a jet or ultrasonic nebulizer able to produce predominantly aerosol particle size between 1 and 5 .mu.. 2. The aerosol of claim 1 wherein the pH is 6.0. 3. The aerosol of claim 2 wherein the nebulizer is jet nebulizer. 4. The aerosol of claim 2 wherein the nebulizer is ultrasonic nebulizer. 5. An aerosol formulation for suppression and inhibition of at least 95% of Pseudomonas aeruginosa bacteria in endobronchial space of a patient suffering from the Pseudomonas aeruginosa infection, said formulation comprising about 300 mg of tobramycin dissolved in about 5 ml of solution containing 0.225% of sodium chloride; said formulation having Ph between about 5.5 and 6.5; said formulation administered by aerosolization using a jet or ultrasonic nebulizer able to produce predominantly aerosol particle size between 1 and 5 .mu.. 6. The aerosol of claim 5 wherein the Ph is 6.0. 7. The aerosol of claim 6 wherein the nebulizer is jet nebulizer. 8. The aerosol of claim 6 wherein the nebulizer is ultrasonic nebulizer. 9. A method for treatment of Pseudomonas aeruginosa bacteria end bronchial infections by providing patient in need of such treatment an aerosol formulation comprising about 300 mg of tobramycin dissolved in about 5 ml of solution containing 0.225% of sodium chloride; said formulation having pH between about 5.5 and 6.5; said formulation administered by aerosolization using a jet or ultrasonic nebulizer able to produce predominantly aerosol particle size between 1 and 5 .mu.. 10. The method of claim 9 wherein the pH of the aerosol formulation is about 6.0. 11. The method of claim 10 wherein the nebulizer used for administration of the aerosol formulation is the jet nebulizer. 12. The method of claim 10 wherein the nebulizer used for administration of the aerosol formulation is the ultrasonic nebulizer. 13. A method for treatment of Pseudomonas aeruginosa bacteria endobronchial infections by providing patient in need of such treatment an aerosol formulation comprising about 200 to about 400 mg of aminoglycoside dissolved in about 5 ml of solution containing 0.225% of sodium chloride; said formulation having pH between about 5.5 and 6.5; said formulation administered by aerosolization using a jet or ultrasonic nebulizer able to produce predominantly aerosol particle size between 1 and 5 .mu.. 14. The method of claim 13 wherein the pH of the aerosol formulation is about 6.0. 15. The method of claim 14 wherein the nebulizer used for administration of the aerosol formulation is the jet nebulizer. 16. The method of claim 14 wherein the nebulizer used for administration of the aerosol formulation is the ultrasonic nebulizer.