Phosphodiesterase 4B inhibition: a potential novel strategy for treating pulmonary fibrosis.

"Conflict of interest: M. Kolb declares research funding for pre-clinical work from Boehringer Ingelheim and Pieris, and research funding for clinical work from Roche; consulting fees from Boehringer Ingelheim, Roche, Horizon, Cipla, AbbVie, Bellerophon, Algernon, CSL Behring, United Therapeutics and LabCorp; payment or honoraria from Roche, Novartis and Boehringer Ingelheim; payment for expert testimony from Roche; participation on a Data Safety Monitoring Board or Advisory Board for United Therapeutics and LabCorp; and received an allowance as the chief editor of the European Respiratory Journal.: Conflict of interest: B. Crestani declares grants or contracts from Bristol-Myers Squibb, Boehringer Ingelheim and Roche; personal consulting fees from Apellis; payment or honoraria from Boehringer Ingelheim, Bristol-Myers Squibb, Roche, Sanofi, Novartis, AstraZeneca and Chiesi; and receipt of equipment, materials, drugs or other services from Translate Bio.: Conflict of interest: T.M. Maher declares consulting fees from Boehringer Ingelheim, Roche/Genentech, AstraZeneca, Bayer, Blade Therapeutics, Bristol-Myers Squibb, Galapagos, Galecto, GlaxoSmithKline, IQVIA, Pliant, Respivant, Theravance and Veracyte; and payment or honoraria from Boehringer Ingelheim and Roche/Genentech."

"Support statement: Funding for medical writing support was provided by Boehringer Ingelheim International GmbH. Funding information for this article has been deposited with the Crossref Funder Registry."