WO2007145866A1 - Treating cystic fibrosis with antibiotics via a swirler delivery - Google Patents

Treating cystic fibrosis with antibiotics via a swirler delivery Download PDF

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Publication number
WO2007145866A1
WO2007145866A1 PCT/US2007/013065 US2007013065W WO2007145866A1 WO 2007145866 A1 WO2007145866 A1 WO 2007145866A1 US 2007013065 W US2007013065 W US 2007013065W WO 2007145866 A1 WO2007145866 A1 WO 2007145866A1
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injection
antibiotic
aerosol
dextrose
swirler
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PCT/US2007/013065
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French (fr)
Inventor
Hanumantharao Tatapudy
Syed M. Shah
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Wyeth
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/007—Pulmonary tract; Aromatherapy
    • A61K9/0073—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy
    • A61K9/0078—Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy for inhalation via a nebulizer such as a jet nebulizer, ultrasonic nebulizer, e.g. in the form of aqueous drug solutions or dispersions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/425—Thiazoles
    • A61K31/429—Thiazoles condensed with heterocyclic ring systems
    • A61K31/43—Compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula, e.g. penicillins, penems
    • A61K31/431—Compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula, e.g. penicillins, penems containing further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/65—Tetracyclines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00—Drugs for disorders of the respiratory system

Definitions

  • the present invention is directed to a method of treating respiratory disorders by delivering an antibiotic aerosol formulation to the lung alveoli.
  • Nebulizers and other aerosol devices have been used to deliver drugs for asthma patients. However, not all these devices deliver droplets that are small enough to provide deep lung penetration, which may be beneficial in delivering certain drugs, such as antibiotics. Some aerosol devices are capable of delivering the smaller droplet sizes needed for deep lung penetration.
  • One commercially available example is the SWIRLER ® aerosol drug delivery system which is described at amici-inc.com, and in U.S. Patents No. 5,603,314, 5,630,409, 5,611,332 and 6,230,703, which patents are incorporated by reference herein.
  • the SWIRLER ® aerosol drug delivery system is an aerosol inhalation device that provides an aerosol mist to a patient.
  • This device includes a nebulizer having a liquid reservoir containing the liquid to be inhaled, a gas inlet for receiving pressurized gas, and an aerosol outlet.
  • An important feature of the device is a gas swirling or flow control means which creates a swirling action to the gas forming the aerosol; this produces a greater shear force and smaller particle sizes.
  • the swirling gas creates a vacuum as it exits the outlet and this vacuum draws liquid form the reservoir, producing an aerosol.
  • the device is capable of producing aerosol particles less than one micrometer in size.
  • ZOSYN ® is an injectable antibacterial combination product consisting of the semi synthetic antibiotic piperacillin sodium and the (beta)-lactamase inhibitor tazobactam sodium for intravenous administration.
  • the product is disclosed in U.S. Patent Nos. 4,562,073, 4,477,452, 4,534,977, and 6,207,661.
  • Piperacillin sodium is derived from D(-)-(alpha)-aminobenzyl-penici!lin.
  • the chemical name of piperacillin sodium is sodium (2 S ,5 R ,6 R )-6-[( R )-2-(4-ethyl-2,3-dioxo-1- piperazine-carboxamido)-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1- azabicyclo[3.2.0]heptane-2-carboxylate.
  • the chemical formula is C 23 H 2 e N 5 NaO 7 S and the molecular weight is 539.5.
  • the product is disclosed in U.S. Patent No. 4,562,073.
  • Tazobactam sodium a derivative of the penicillin nucleus, is a penicillanic acid sulfo ⁇ e. Its chemical name is sodium (2 S ,3 S ,5 R )-3-methyl-7-oxo-3-(1 H -1 ,2,3- triazol-1 -ylmethyl)-4-thia-1 -azabicyc!o[3.2.0]heptane-2-carboxylate-4,4-dioxide. The chemical formula is C 10 H n N 4 NaO 5 S and the molecular weight is 322.3. The product is disclosed in U.S. Patent No. 4,958,020.
  • TYGACIL® (tigecycline) is a first in class glycylcycline antibacterial disclosed in U.S. patent number 5,494,903.
  • the chemical name of tigecycline is ⁇ S ⁇ aS. ⁇ aR. ⁇ aS)- 9-[2-(te/f-butylamino)acetamido]-4,7-bis ⁇ dimethylamino)-1 ,4,4a,5,5a,6,11 ,12a- octahydro-3, 10, 12, 12a-tetrahyd roxy-1 , 11 -dioxo ⁇ -naphthacenecarboxamide.
  • the empirical formula is C 2 SH 39 N 5 Oe and the molecular weight is 585.65.
  • Tigecycline has an expanded spectrum of activity against gram positives, gram negatives, anaerobes, and atypicals including resistant pathogens, and allows for flat dosing.
  • the product is disclosed in U.S. Patent Nos. 5,494,903, 5,299,900, and 5,284963.
  • the present invention comprises a method of treating a respiratory disorder comprising administering an antibiotic drug suitable for treating said disorder to a mammal in need thereof via a drug delivery system such as the SWIRLER aerosol drug delivery system, which produces an aerosol composition of said antibiotic drug in which the particle size of the antibiotic composition droplets is small enough to provide deep lung penetration.
  • a drug delivery system such as the SWIRLER aerosol drug delivery system
  • the antibiotic droplets in the aerosol are about 1-3 microns or less, more preferably 1.1 microns or less.
  • the antibiotic aerosol typically will comprise an antibiotic and a diluent.
  • the diluent can be, for example, sterile water for Injection, 0.9% sodium chloride for injection, 5% dextrose for injection, 5% dextrose and 0.9% sodium chloride for injection, 5% dextrose in lactated Ringers for injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride for injection or lactated Ringers for injection.
  • a liquid composition comprising the drug and the diluent is placed in the reservoir of the SWIRLER ® aerosol drug delivery system, which is connected to a source of pressurized gas, which gas is not reactive with the liquid composition.
  • the device is designed to impart a swirling action to the gas and to create a fine mist of aerosol droplets which can be smaller than one micrometer.
  • Antibiotics of the present invention include anti-infective agents known in the art, such as those found in the current Physician's Desk Reference published by Medical Economics Company (www.pdr.net) and hereby incorporated by reference, including but are not limited to ZOSYN (E) 1 Piperacillin, Tazobactam, and TYGACIL®.
  • the antibiotic can be administered alone or in combination with other antibiotics.
  • at least one of the antibiotics is administered in an aerosol medium composition.
  • Additional antibiotics may be administered orally, or by intralesional, intraperitoneal, intramuscular or intravenous injection; infusion; liposome-mediated delivery; topical, nasal, anal, vaginal, sublingual, uretheral, transdermal, intrathecal, ocular or optic delivery.
  • a compound of the invention is in the form of a unit dose. Suitable unit dose forms include tablets, capsules and powders in sachets or vials. Such unit dose forms may contain from 0.1 to 300 mg of a compound of the invention and preferably from 2 to 100 mg. Still further preferred unit dosage forms contain 5 to 50 mg of a compound of the present invention.
  • the effective amount will be known to one of skill in the art; it will also be dependent upon the form of the compound.
  • One of skill, in the art could routinely perform empirical activity tests to determine the bioactivity of the compound in bioassays and thus determine what dosage to administer.
  • the aerosol medium composition may comprise diluents such as sterile water for injection, 0.9% sodium chloride for injection, 5% dextrose for injection, 5% dextrose and 0.9% sodium chloride for injection, 5% dextrose in lactated Ringers for injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride for injection or lactated Ringers injection.
  • diluents such as sterile water for injection, 0.9% sodium chloride for injection, 5% dextrose for injection, 5% dextrose and 0.9% sodium chloride for injection, 5% dextrose in lactated Ringers for injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride for injection or lactated Ringers injection.
  • the antibiotic is suspended in the aerosol medium at a particle size range that will meet the subvisible particulate testing acceptance criteria as per USP 788 viz. not more than 600 particles > 25 microns and not more than 6000 particles>10 microns.
  • the invention comprises a method of treating respiratory disorders using the SWIRLER drug delivery system to deliver an aerosol containing an antibiotic compound and to reduce the particle size of at least about 95% of the antibiotic droplets in the aerosol to about 1-3 microns or less, thereby allowing the antibiotic aerosol to reach the alveoli of the lung.
  • at least about 95% of the antibiotic particles is delivered at a particle size of less than 1.1 microns.
  • This method is useful for treating a respiratory disorder such as, but not limited to, cystic fibrosis.
  • Tygacil ® (Ti ⁇ ecycline) for Deep Lung Delivery
  • the commercial Tygacil ® 2 nd Generation product was used to conduct the study. Sterile Water for injection and 0.9 % Norma! Saline were used at diluents.
  • Tygacil ® is a sterile, lyophilized powder for intravenous infusion, containing 53 mg of the Tigecydine active ingredient.
  • Tygacil ® additionally contains lactose monohydrate as a diluent/stabilizer and hydrochloric acid and/or sodium hydroxide (as needed) for pH adjustment.
  • the product is supplied in a single dose; Type I, clear, glass vial, sealed under a blanket of nitrogen with a gray butyl rubber stopper and a snap-off aluminum crimp seal.
  • Tigecycline for Injection is an orange powder or cake.
  • Tygacil ® was reconstituted using 100 ml of 0.9 % Sodium Chloride (Normal Saline) or Sterile Water for Injection USP.
  • the Tigecycline powder was allowed to dissolve in the diluents. A clear yellow to orange solution was obtained.
  • the solution was then transferred into the SWIRLER ® device.
  • Oxygen was supplied to the SWIRLER ® via an NG tube to aerosolize the solution.
  • An oxygen air pressure regulator was used to set the air pressure to 15 CFM.
  • a Malvern MXS, S/N 6196 was used to measure the particle size of the droplets. Results show a high percentage (90%) of the particles are less than 1.1 micron which is the desired size for deep lung delivery. Data are reported in Table 2 below:
  • Table 2 Particle Size distribution of Tygacil ® reconstituted with Normal Saline or Sterile Water for Injection and administered through a SWIRLER ® for Deep Lung Delivery

Abstract

The present invention is directed to a method of treating respiratory disorders by delivering an aerosol composition of an antibiotic drug to the lung alveoli.

Description

TREATING CYSTIC FIBROSIS WITH ANTIBIOTICS VIA A SWIRLER DELIVERY
BACKGROUND OF THE INVENTION
The present invention is directed to a method of treating respiratory disorders by delivering an antibiotic aerosol formulation to the lung alveoli.
Nebulizers and other aerosol devices have been used to deliver drugs for asthma patients. However, not all these devices deliver droplets that are small enough to provide deep lung penetration, which may be beneficial in delivering certain drugs, such as antibiotics. Some aerosol devices are capable of delivering the smaller droplet sizes needed for deep lung penetration. One commercially available example is the SWIRLER® aerosol drug delivery system which is described at amici-inc.com, and in U.S. Patents No. 5,603,314, 5,630,409, 5,611,332 and 6,230,703, which patents are incorporated by reference herein.
As described in greater detail in the aforementioned patents, the SWIRLER® aerosol drug delivery system is an aerosol inhalation device that provides an aerosol mist to a patient. This device includes a nebulizer having a liquid reservoir containing the liquid to be inhaled, a gas inlet for receiving pressurized gas, and an aerosol outlet. An important feature of the device is a gas swirling or flow control means which creates a swirling action to the gas forming the aerosol; this produces a greater shear force and smaller particle sizes. The swirling gas creates a vacuum as it exits the outlet and this vacuum draws liquid form the reservoir, producing an aerosol. The device is capable of producing aerosol particles less than one micrometer in size.
ZOSYN® is an injectable antibacterial combination product consisting of the semi synthetic antibiotic piperacillin sodium and the (beta)-lactamase inhibitor tazobactam sodium for intravenous administration. The product is disclosed in U.S. Patent Nos. 4,562,073, 4,477,452, 4,534,977, and 6,207,661.
Piperacillin sodium is derived from D(-)-(alpha)-aminobenzyl-penici!lin. The chemical name of piperacillin sodium is sodium (2 S ,5 R ,6 R )-6-[( R )-2-(4-ethyl-2,3-dioxo-1- piperazine-carboxamido)-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1- azabicyclo[3.2.0]heptane-2-carboxylate. The chemical formula is C 23 H 2e N 5NaO 7S and the molecular weight is 539.5. The product is disclosed in U.S. Patent No. 4,562,073.
The chemical structure of piperacillin sodium is:
Figure imgf000003_0001
Tazobactam sodium, a derivative of the penicillin nucleus, is a penicillanic acid sulfoπe. Its chemical name is sodium (2 S ,3 S ,5 R )-3-methyl-7-oxo-3-(1 H -1 ,2,3- triazol-1 -ylmethyl)-4-thia-1 -azabicyc!o[3.2.0]heptane-2-carboxylate-4,4-dioxide. The chemical formula is C 10 H n N 4 NaO 5 S and the molecular weight is 322.3. The product is disclosed in U.S. Patent No. 4,958,020.
The chemical structure of tazobactam sodium is:
Figure imgf000003_0002
TYGACIL® (tigecycline) is a first in class glycylcycline antibacterial disclosed in U.S. patent number 5,494,903. The chemical name of tigecycline is ^S^aS.δaR.^aS)- 9-[2-(te/f-butylamino)acetamido]-4,7-bis<dimethylamino)-1 ,4,4a,5,5a,6,11 ,12a- octahydro-3, 10, 12, 12a-tetrahyd roxy-1 , 11 -dioxo^-naphthacenecarboxamide. The empirical formula is C2SH39N5Oe and the molecular weight is 585.65. It is a 9-tert- butyl-glycylamido derivative of monocycline which exhibits antibiotic activity typical of tetracyclines, but has more potent activity against tetracycline-resistant organisms having efflux and ribosomal protection mechanisms of resistance. Tigecycline has an expanded spectrum of activity against gram positives, gram negatives, anaerobes, and atypicals including resistant pathogens, and allows for flat dosing. The product is disclosed in U.S. Patent Nos. 5,494,903, 5,299,900, and 5,284963.
The following represents the chemical, structure of tigecycline:
Figure imgf000004_0001
There exists a need to deliver these and other antibiotics to patients via aerosol directly to the lungs to provide another option in the treatment of lung disorders, for example, cystic fibrosis.
SUMMARY OF THE INVENTION
These and other embodiments are provided for by the invention disclosed and claimed herein.
The present invention comprises a method of treating a respiratory disorder comprising administering an antibiotic drug suitable for treating said disorder to a mammal in need thereof via a drug delivery system such as the SWIRLER aerosol drug delivery system, which produces an aerosol composition of said antibiotic drug in which the particle size of the antibiotic composition droplets is small enough to provide deep lung penetration. Preferably, at least about 90%, such as 95% or more, of the antibiotic droplets in the aerosol are about 1-3 microns or less, more preferably 1.1 microns or less.
For delivery, the antibiotic aerosol typically will comprise an antibiotic and a diluent. The diluent can be, for example, sterile water for Injection, 0.9% sodium chloride for injection, 5% dextrose for injection, 5% dextrose and 0.9% sodium chloride for injection, 5% dextrose in lactated Ringers for injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride for injection or lactated Ringers for injection.
fn the practice of this invention, a liquid composition comprising the drug and the diluent is placed in the reservoir of the SWIRLER® aerosol drug delivery system, which is connected to a source of pressurized gas, which gas is not reactive with the liquid composition. The device is designed to impart a swirling action to the gas and to create a fine mist of aerosol droplets which can be smaller than one micrometer.
Antibiotics of the present invention include anti-infective agents known in the art, such as those found in the current Physician's Desk Reference published by Medical Economics Company (www.pdr.net) and hereby incorporated by reference, including but are not limited to ZOSYN (E)1 Piperacillin, Tazobactam, and TYGACIL®. The antibiotic can be administered alone or in combination with other antibiotics. In accordance with the invention, at least one of the antibiotics is administered in an aerosol medium composition. Additional antibiotics may be administered orally, or by intralesional, intraperitoneal, intramuscular or intravenous injection; infusion; liposome-mediated delivery; topical, nasal, anal, vaginal, sublingual, uretheral, transdermal, intrathecal, ocular or optic delivery. In order to obtain consistency in providing the compound of this invention it is preferred that a compound of the invention is in the form of a unit dose. Suitable unit dose forms include tablets, capsules and powders in sachets or vials. Such unit dose forms may contain from 0.1 to 300 mg of a compound of the invention and preferably from 2 to 100 mg. Still further preferred unit dosage forms contain 5 to 50 mg of a compound of the present invention. The effective amount will be known to one of skill in the art; it will also be dependent upon the form of the compound. One of skill, in the art could routinely perform empirical activity tests to determine the bioactivity of the compound in bioassays and thus determine what dosage to administer.
DETAILED DESCRIPTION OF THE INVENTION
In one embodiment of the present invention, there is provided a method of delivering an aerosol medium composition containing an antibiotic via the SWlRLER drug delivery system. The aerosol medium composition may comprise diluents such as sterile water for injection, 0.9% sodium chloride for injection, 5% dextrose for injection, 5% dextrose and 0.9% sodium chloride for injection, 5% dextrose in lactated Ringers for injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride for injection or lactated Ringers injection.
In one embodiment, the antibiotic is suspended in the aerosol medium at a particle size range that will meet the subvisible particulate testing acceptance criteria as per USP 788 viz. not more than 600 particles > 25 microns and not more than 6000 particles>10 microns.
In one embodiment, the invention comprises a method of treating respiratory disorders using the SWIRLER drug delivery system to deliver an aerosol containing an antibiotic compound and to reduce the particle size of at least about 95% of the antibiotic droplets in the aerosol to about 1-3 microns or less, thereby allowing the antibiotic aerosol to reach the alveoli of the lung. In another embodiment, at least about 95% of the antibiotic particles is delivered at a particle size of less than 1.1 microns.
This method is useful for treating a respiratory disorder such as, but not limited to, cystic fibrosis.
When used herein, the* term "about" shall generally mean within 20 percent.
It will be understood by those with skill in the art that the invention may be performed within a wide and equivalent range of conditions, parameters and the like, without affecting the spirit or scope of the invention or any embodiment thereof.
A drug such as Piperacillin (2 g - 4g lyophilized powder per vial), Tazobactam (0.25 g - 0.50 g lyophilized powder per vial), Tygacil (50mg lyophilized powder per 5mL vial), or ZOSYN® (2-4 g piperacillin plus 250-500mg tazobactam), and at least one intravenous diluent, for example but not limited to sterile water for injection, 0.9% sodium chloride injection, 5% dextrose injection, 5% dextrose and 0.9% sodium chloride injection, 5% dextrose in Lactated Ringers injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride injection or lactated Ringers injection may be administered using a SWIRLER drug delivery system, or an equivalent aerosol delivery system, at a particle size of 95% particles ranging from about 1 to about 3 microns and preferably less than about 1.1 microns to ensure deep lung delivery to the alveolar region of the lungs. Those skilled in the art will readily be capable of determining whether a delivery system is able to provide the aerosol particle sizes of the present invention.
The following examples are presented to illustrate certain embodiments of the present invention, but should not be construed as limiting the scope of this invention.
EXAMPLE: Typacil® (Tiαecycline) for Deep Lung Delivery The commercial Tygacil ®2nd Generation product was used to conduct the study. Sterile Water for injection and 0.9 % Norma! Saline were used at diluents. Tygacil ® is a sterile, lyophilized powder for intravenous infusion, containing 53 mg of the Tigecydine active ingredient. Tygacil ®additionally contains lactose monohydrate as a diluent/stabilizer and hydrochloric acid and/or sodium hydroxide (as needed) for pH adjustment. The product is supplied in a single dose; Type I, clear, glass vial, sealed under a blanket of nitrogen with a gray butyl rubber stopper and a snap-off aluminum crimp seal.
The quantitative composition of Tygacil® is depicted in Table 1 below.
Figure imgf000009_0001
Prior to reconstitution, Tigecycline for Injection is an orange powder or cake. One (1 ) vial of Tygacil® was reconstituted using 100 ml of 0.9 % Sodium Chloride (Normal Saline) or Sterile Water for Injection USP. The Tigecycline powder was allowed to dissolve in the diluents. A clear yellow to orange solution was obtained. The solution was then transferred into the SWIRLER® device. Oxygen was supplied to the SWIRLER® via an NG tube to aerosolize the solution. An oxygen air pressure regulator was used to set the air pressure to 15 CFM. A Malvern MXS, S/N 6196 was used to measure the particle size of the droplets. Results show a high percentage (90%) of the particles are less than 1.1 micron which is the desired size for deep lung delivery. Data are reported in Table 2 below:
Table 2: Particle Size distribution of Tygacil® reconstituted with Normal Saline or Sterile Water for Injection and administered through a SWIRLER® for Deep Lung Delivery
Figure imgf000010_0001
* 100 ml of 0.9% Sodium Chloride (Normal Saline) was used to dissolve 50 mg (1 vial) of Tygacil®
*• 100 ml of 0.9% Sodium Chloride (Normal Saline) was used to dissolve 100mg (2 vials) of Tygacil •
*** 100 ml of Sterile Water for Injection (USP) was used to dissolve 50 mg (1 vial) of Tygacil ®
Many variations of the present invention not illustrated herein will occur to those skilled in the art. The present invention is not limited to the embodiments illustrated and described herein, but encompasses all the subject matter within the scope of the appended claims.

Claims

CLAIMS:
1. A method of treating a respiratory disorder comprising administering an antibiotic drug suitable for treating said disorder to a mammal in need thereof via a SWIRLER drug delivery system which produces a liquid aerosol composition of said antibiotic drug in which the particle size of at least about 90% of the antibiotic droplets in the aerosol is about 1-3 microns or less, wherein said antibiotic drug comprises ZOSYN1 Piperacillin, Tazobactam, or TYGACIL.
2. The method of claim 1 , wherein the particle size of at least about 95% of the aerosol composition is 1-3 microns or less.
3. The method of claim 1 or 2, wherein the particle size of at least about 90% of the antibiotic droplets in the aerosol is about 1.1 microns or less.
4. The method of any one of claims 1 to 3, wherein the particle size of at least about 95% of the antibiotic droplets in the aerosol is about 1.1 microns or less. .
5. The method of any one of claims 1 to 4, wherein the aerosol composition comprises an antibiotic and a diluent.
6. The method of claim 5, wherein the diluent comprises sterile water for Injection, 0.9% sodium chloride for injection, 5% dextrose for injection, 5% dextrose and 0.9% sodium chloride for injection, 5% dextrose in lactated Ringers for injection, 5% dextrose-0.45% sodium chloride-0.15% potassium chloride for injection, or lactated Ringers for injection.
7. The method of any one of claims 1 to 6, wherein the respiratory disorder is cystic fibrosis.
8. The method of any one of claims 1 to 7, wherein the antibiotic can be administered alone or in combination with other antibiotics.
PCT/US2007/013065 2006-06-07 2007-06-01 Treating cystic fibrosis with antibiotics via a swirler delivery WO2007145866A1 (en)

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