Press Room

Article / Sep 10, 2019

Inhalation Drug Delivery: The Impact of Particle Size Reduction

Pharmaceutical Technology, September 2, 2019

Within the past few years, much has been learned about characterizing the particles used in inhalation therapies, with the goal of improving drug delivery to the lungs.

Optimizing the manufacturing of these therapies requires avoiding particle interactions during size reducing, blending, and capsule filling, because these can affect the final product’s quality. 

In an inhalation formulation, the physicochemical properties of size-reduced drug particles strongly affect the end product’s stability and performance. Previous studies reported that size-reduced APIs that had been milled using different techniques may present significant differences in terms of morphological and interfacial properties (1,2). Characterizing the particles’ surface properties is key to understanding API/excipient interactions and their impact on the final formulation performance. 

Selecting the micronization technique is crucial for particles that are to be used in inhalation therapies, because it will determine the API’s properties. For inhalation delivery, a narrow and controlled particle size distribution (PSD) is key to improving and consistently delivering the aerodynamic performance. With a narrow PSD and Dv905µm, the fraction of particles that reach the lungs (FPF) will be higher.

 

Read the full article

 

Also in the Press Room

See All

With key expansions coming to fruition on either side of the pond, specialist CDMO Hovione is making sure that drugmakers can access its particle engineering expertise across multiple geographies.  That flexibility will be key for the Portugal-based company in the coming years as the pharmaceutical industry continues to embrace more regional supply chains. In a recent interview, Hovione's David Basile, VP of technical operations for the Americas, discussed this trend and the manufacturer's expansion project, which is set to come online in New Jersey next month.  In the coming weeks, Hovione plans to debut a new spray drying expansion at its campus in East Windsor, New Jersey. The company has invested $100 million to expand its campus, including new construction and the acquisition of an additional facility and greenfield land.  Specifically, one of two pharmaceutical spray drying-3 units, or PSD-3 units, will come online in the coming weeks to tackle amorphous active pharmaceutical ingredients (APIs) and amorphous solid dispersions, according to the company. With some 80% of new small molecules in development insoluble in water, Hovione’s particle engineering and amorphous solid dispersion platform helps medicine developers improve the solubility, bioavailability, and, in some cases, the stability of their drug candidates, Basile said.  The company boasts spray dryers from the lab scale to PSD3 at its original facility in East Windsor, in addition to the pair of large-scale machines about to be activated at the campus' new facility.  “We’re going for a single, unified site with capabilities across the campus to do drug substance through finished drug product under one governance and quality system,” - Basile told Fierce.   Read the full article at FiercePharma.com

Article

As expansions come online, CDMO Hovione aims to meet industry's 'dual supply and sourcing' zeal: exec

Mar 26, 2026