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    • Delivered Dose Uniformity (DDU)
      • Metered-Dose Inhalers (MDIs)
      • Dry Powder Inhalers (DPIs)
      • Nebulisers
      • Aqueous Droplet Inhalers (ADIs)
      • Nasal Products
    • Ancillaries
      • Breathing Simulators
      • Flow Controllers
      • Flow Meters
      • Vacuum Pumps
      • Environmental Control
      • NGI Cooler™
      • Inhaler Testing Workstation™ (ITW)
      • Glass Expansion Chambers
      • Mouthpiece & Nosepiece Adapters
    • Special Applications
      • Abbreviated Impactor Measurement (AIM)
      • USP Monographs (Generic Drug Development)
      • Device Robustness / Inhaler Misuse
    • Aerodynamic Particle Size Distribution (APSD)
      • Metered Dose Inhalers (MDIs)
      • Dry Powder Inhalers (DPIs)
      • Nebulisers
      • Aqueous Droplet Inhalers (ADIs)
      • Nasal Products
    • Improving IVIVCs
      • IVIVC Test Systems for DDU and APSD
      • Inhaled Dissolution
      • Facemask Testing
      • Morphology
      • Cold Freon® Effect
    • Semi-Automation
      • Automated Shake, Fire and Flow Control for MDIs, Nasal Sprays and Aerosols
      • Semi-Automation for DDU Testing
      • Semi-Automation for APSD Testing
    • APSD Data Analysis Software
      • Inhalytix®
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Copley Scientific publishes new white paper: ‘Using breathing simulators to enhance inhaled product testing’

10 April 2014; Nottingham, UK: A new white paper from Copley Scientific provides expert guidance on how to use breathing simulators effectively when testing orally inhaled products (OIPs). Breathing simulators are machines that mimic the inhalation and/or exhalation profile of a patient and are used increasingly in OIP testing. Copley Scientific’s white paper clearly explains where breathing simulators are specified by pharmacopoeial methods and also where their optional use is beneficial. This may be in improving understanding of product performance, for example, or to support a Quality by Design (QbD) approach.

For OIPs such as nebulisers – and now pressurised metered dose inhalers (pMDIs) with add-on devices – pharmacopoeial monographs specify the use of breathing simulators to measure the dose of drug delivered to the patient. Here the active ingredient is inhaled from a continuous stream or reservoir of aerosolised droplets/particles and consequently the inhalation profile directly affects the success of drug delivery. The use of standardised breathing profiles allows the generation of representative drug delivery data for neonates, infants, children and adults.

Breathing simulators are not specified in the pharmacopoeias for testing dry powder inhalers. However advances in breathing simulator technology and accessories, and the implementation of QbD are encouraging their use to gain a greater understanding of the performance of this important class of OIPs. Because DPI dose uniformity and particle size performance is directly influenced by the inhalation profile applied during product use, breathing simulators reproducing profiles obtained in clinic, can help characterize a product’s behaviour more completely, for the intended patient population. This can be valuable for innovative product development and/or contribute to the demonstration of bioequivalence for a generic product within an in vitro testing environment.

To read and download the white paper, or for more information, please visit: www.copleyscientific.com

CAPTION: Knowing how and when to use breathing simulators improves the effectiveness of OIP testing

About Copley Scientific

Copley Scientific is recognised as the world’s leading manufacturer and supplier of inhaler test equipment and is a major provider of testing systems for other pharmaceutical dosage forms. The company is also active in detergent testing, air sampling and aerosol characterisation.

Copley Scientific’s pharmaceutical product range includes test equipment for: delivered dose uniformity and aerodynamic particle size measurement of metered-dose inhalers, dry powder inhalers, nebulizers and nasal sprays; as well as tablets (dissolution, disintegration, friability and hardness) capsules, powders, suppositories and transdermals.

Copley Scientific has offices in the UK and Switzerland. The company works in partnership with aerosol particle science experts MSP Corporation in North America, and also distributes MSP Corporation’s air sampling and aerosol characterisation products throughout Europe.

Serving the pharmaceutical and associated industries, Copley Scientific offers an extensive range of equipment for research, development and quality control, as well as full validation and aftersales services. This broad range of products is supplied and supported worldwide through a network of specialist distributors. www.copleyscientific.com

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Copley Scientific Limited, Colwick Quays Business Park, Road No. 2, Nottingham, NG4 2JY, United Kingdom
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