White Paper

Simultaneous Spray Drying For Combination Dry Powder Inhaler Formulations

Source: Lonza

By Kimberly B. Shepard, Amanda M. Pluntze, and David T. Vodak, Lonza


Spray drying is a particle engineering technique used to manufacture respirable pharmaceutical powders that are suitable for delivery to the deep lung. It is amenable to processing both small molecules and biologic actives, including proteins. In this work, a simultaneous spray-drying process, termed simul-spray, is described; the process involves two different active pharmaceutical ingredient (API) solutions that are simultaneously atomized through separate nozzles into a single-spray dryer. Collected by a single cyclone, simul-spray produces a uniform mixture of two different active particles in a single-unit operation. While combination therapies for dry powder inhalers containing milled small molecule API are commercially approved, limited options exist for preparing combination treatments that contain both small molecule APIs and biotherapeutic molecules. Simul-spray drying is also ideal for actives which cannot withstand a milling-based particle engineering process, or which require a high dose that is incompatible with a carrier-based formulation. Three combination case studies are demonstrated here, in which bevacizumab is paired with erlotinib, cisplatin, or paclitaxel in a dry powder inhaler formulation. These model systems were chosen for their potential relevance to the local treatment of lung cancer. The resulting formulations preserved the biologic activity of the antibody, achieved target drug concentration, and had aerosol properties suitable for pulmonary delivery.

Shepard, K.B.; Pluntze, A.M.; Vodak, D.T. Simultaneous Spray Drying for Combination Dry Powder Inhaler Formulations. Pharmaceutics 2022, 14, 1130. https://doi.org/10.3390/pharmaceutics14061130

access the White Paper!

Get unlimited access to:

Trend and Thought Leadership Articles
Case Studies & White Papers
Extensive Product Database
Members-Only Premium Content
Welcome Back! Please Log In to Continue. X

Enter your credentials below to log in. Not yet a member of Drug Delivery Leader? Subscribe today.

Subscribe to Drug Delivery Leader X

Please enter your email address and create a password to access the full content, Or log in to your account to continue.


Subscribe to Drug Delivery Leader