Distribution Of Monodisperse Aerosols Inhaled By Children For Determination Of Optimal Therapeutic Inhaler Formulations
Funder
National Health and Medical Research Council
Funding Amount
$326,000.00
Summary
Inhalers are the primary form of treatment for asthma, allowing the delivery of lower doses of medication directly to the lungs. Consistent daily use of these inhalers is often necessary to effectively control the symptoms of asthma. Inhalers are now increasingly used to treat infants with lung problems. Many of these inhalers are not designed for use by such young children, who may be unable to perform the breathing techniques necessary for effective use of these inhalers. Not all the drug inha ....Inhalers are the primary form of treatment for asthma, allowing the delivery of lower doses of medication directly to the lungs. Consistent daily use of these inhalers is often necessary to effectively control the symptoms of asthma. Inhalers are now increasingly used to treat infants with lung problems. Many of these inhalers are not designed for use by such young children, who may be unable to perform the breathing techniques necessary for effective use of these inhalers. Not all the drug inhaled by patients will end up in the lungs where it is needed; a large proportion is left in the mouth, throat and stomach. Our earlier studies have shown that there is a large amount of variability in the amount of drug received by children using inhalers. We intend to assess the important factors involved in improving the efficiency of inhaler therapy for children, such as the size of the inhaled particles and the breathing pattern of the child. The results obtained from this study will enable us to determine the best method of delivering these drugs to children so that they only receive the lowest effective dose for treatment of the symptoms of asthma while minimising unwanted effects.Read moreRead less
CSI-Sydney: New Technologies To Treat Chronic Sinus Infection
Funder
National Health and Medical Research Council
Funding Amount
$412,213.00
Summary
Chronic sinus infection (CSI) is prevalent and results in severe discomfort and pain for many Australians; yet amazingly, has no specific cure or effective treatment. Our multi-disciplinary research team and an Australian health and medical research company, (AFT Pharmaceuticals) have partnered to develop a novel device that specifically targets the sinuses and a formulation capable for simultaneously removing mucus, dispersing biofilms and killing bacteria in the nasal cavities.
Novel Inhalation Formulation Of Colistin And Combination Therapy Against Gram-negative 'superbugs'
Funder
National Health and Medical Research Council
Funding Amount
$513,896.00
Summary
Respiratory infections caused by multidrug-resistant Gram-negative bacteria are major health problems for Australians. Colistin is the last-resort defense in most cases. However, parenteral administration of colistin will cause serious side effects. This proposal applies an interdisciplinary approach using aerosol particle engineering, functional lung imaging and antimicrobial pharmacology to develop and characterise novel inhaled powder formulations of colistin and its rational combinations.
Engineering Powder Aerosols Of Antibacterial Nanomedicines For Treatment Of Respiratory Infections
Funder
National Health and Medical Research Council
Funding Amount
$195,338.00
Summary
This project aims to apply cutting-edge nanotechnology to develop new inhalation therapy for respiratory infections by delivering antibiotics directly to the lungs. The expected outcomes of this work are more efficacious, safer and cost effective treatments for patients suffering from respiratory infectious diseases such as pneumonia.
In Vitro And In Vivo Assessment Of The Funhaler -an Innovative Therapeutic Device For Children
Funder
National Health and Medical Research Council
Funding Amount
$472,750.00
Summary
Aerosol therapy is the most effective form of treatment for children with respiratory diseases such as asthma. While optimising aerosol delivery systems has an important role in increasing the efficacy of asthma therapy, ensuring patient compliance is often the most difficult part of the clinician's role, particularly in the paediatric age group. An innovative small volume spacer device (Funhaler) developed by a West Australian company (InfaMed, Ltd) may help overcome this problem. The Funhaler ....Aerosol therapy is the most effective form of treatment for children with respiratory diseases such as asthma. While optimising aerosol delivery systems has an important role in increasing the efficacy of asthma therapy, ensuring patient compliance is often the most difficult part of the clinician's role, particularly in the paediatric age group. An innovative small volume spacer device (Funhaler) developed by a West Australian company (InfaMed, Ltd) may help overcome this problem. The Funhaler incorporates a spinning toy attached to the outside of the spacer. The toy is activated when the patient breathes through the spacer. The device has been designed to encourage children to co-operate when their asthma therapy is being delivered. The Funhaler is currently in the late development stage. We propose, firstly, to carry out in vitro assessments of drug delivery from the Funhaler compared to the two most widely available small volume spacers: the Aerochamber Plus (Trudell, Canada) and the Breath-A-Tech (Scott-Dibben, Australia). These assessments will be carried out to meet the standards of regulatory bodies worldwide (including the FDA). Secondly, we propose to perform extensive in vivo studie: filter studies to assess drug delivery to the patient; deposition studies to measure drug deposition in the lungs; and a pilot clinical trial to assess the efficacy of the device during medium to long-term use in children aged 2-8 years.Read moreRead less
Determining The Cellular Mechanisms Involved In The Airway Response To Topical Citrate
Funder
National Health and Medical Research Council
Funding Amount
$444,491.00
Summary
The air passages of the lungs are lined by mucous membranes. These membranes are covered by a thin layer of fluid to protect the airways from drying. This fluid allows the cilia, the hair like projections on top of the airway cells to beat more effectively to remove mucous and inhaled particles from the lungs. The volume and composition of this fluid is determined by the salt and water movement across the mucous membranes of the airways. These processes are abnormal in cystic fibrosis (CF), the ....The air passages of the lungs are lined by mucous membranes. These membranes are covered by a thin layer of fluid to protect the airways from drying. This fluid allows the cilia, the hair like projections on top of the airway cells to beat more effectively to remove mucous and inhaled particles from the lungs. The volume and composition of this fluid is determined by the salt and water movement across the mucous membranes of the airways. These processes are abnormal in cystic fibrosis (CF), the most common lethal inherited disease affecting Australians. In CF, an abnormal gene disrupts one of the major mechanisms for salt and water movement in the air passages. This abnormal salt transport causes drying of the airway surface which impairs the working of the cilia. This leads to retention of mucous in the airways with repeated bacterial infections damaging the lungs. Over the last 10 years, we have developed a series of simple tests to measure the abnormalities in the CF airway of human subjects. We have isolated an exciting new clinical application for sodium citrate, a substance used in blood transfusions. Citrate appears to alter both the salt transport abnormalities found in CF. This research proposal seeks to better understand the dual effects of citrate and to test similar compounds that may have stronger effects. The ultimate aim of our research is to have sufficient knowledge to work out the best way to develop a new treatment for CF.Read moreRead less
Novel Inhalation Formulation Of Bacteriophages Against ‘superbugs’ Causing Respiratory Infections
Funder
National Health and Medical Research Council
Funding Amount
$563,621.00
Summary
Emergence of superbugs has led to life-threatening respiratory infections that are resistant to most antibiotics. There is an urgent need for alternative treatments not relying on antibiotics. Bacteriophages (or ‘bacteria eaters’) are natural predators of bacteria and are unaffected by antibiotic resistance. This multi-disciplinary project will develop novel therapeutics using inhaled bacteriophages against bacterial infections in the lungs.
Next Generation Hand-held Nebulisers For Aerosol Drug Delivery: Using Microfluidics To Tune Particle Size
Funder
National Health and Medical Research Council
Funding Amount
$726,160.00
Summary
Chronic respiratory diseases (Asthma, COPD) affect 14% of Australians with a greater disease burden felt by elderly and young patients. These patients experience more difficulty administering medication through conventional inhalers due to a lack of coordination and dexterity. We present a patented technology which improves the pulmonary delivery of medication through a microfluidic method, within a system designed specifically to improve user experience and patient monitoring.