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Peer-Reviewed Publication
J Aerosol Med Pulm Drug Deliv2026;39(3):133-140.June 1, 2026Journal Article

Lung Deposition of Tanimilast, an Inhaled Phosphodiesterase-4 Inhibitor, in Patients with Asthma or COPD, Evaluated Using Functional Respiratory Imaging.

Navid Monshi Tousi1, Romina Osello2, Debora Santoro3, Laura Campochiaro2, Jason H T Bates4, Dmitry Galkin3, Jan De Backer5, Hosein Sadafi1, Gwen Skloot3
1FLUIDDA NV, Kontich, Belgium.
2Global Technical Development, Chiesi Farmaceutici SpA, Parma, Italy.
3Global Clinical Development, Chiesi Farmaceutici SpA, Parma, Italy.
4University of Vermont, Burlington, Vermont, USA.
5FLUIDDA Inc., New York, New York, USA.

Abstract

BACKGROUND: Tanimilast is a novel phosphodiesterase-4 inhibitor under clinical development for the maintenance therapy of asthma and chronic obstructive pulmonary disease (COPD). Since tanimilast is inhaled, it is important to evaluate lung deposition as part of its clinical development. The current study, therefore, used functional respiratory imaging, a validated, noninvasive quantification imag…

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