Roflumilast is a highly selective phosphodiesterase-4 (PDE4) inhibitor. PDE4 is a major cyclic-3',5′-adenosinemonophosphate (cyclic AMP, cAMP)-metabolizing enzyme expressed on nearly all immune and pro-inflammatory cells, in addition to structural cells like those of the smooth muscle or epithelium. The resultant increase in intracellular cAMP induced by roflumilast's inhibition of PDE4 is thought to mediate its disease-modifying effects, although its precise mechanism of action has yet to be elucidated.
The oral formulation of roflumilast is indicated to manage the chronic obstructive pulmonary disease. It was first approved by the EMA in July 2010, and by the FDA in January 2018. Roflumilast topical cream is indicated to treat plaque psoriasis. It was first approved by FDA in July 2022 and by Health Canada in April 2023.
Oral roflumilast is indicated to reduce the risk of COPD exacerbations in patients with severe COPD associated with chronic bronchitis and a history of exacerbations.
Topical roflumilast is indicated to treat plaque psoriasis, including intertriginous areas, in patients 12 years of age and older.
Forest Investigative Site 612, St. Petersburg, Russian Federation
Forest Investigative Site 600, St Petersburg, Russian Federation
Forest Investigative Site 248, Baltimore, Maryland, United States
Maastricht University, Faculty of Psychology and Neuroscience, Maastricht, Limburg, Netherlands
Nycomed investigational site, Quebec, Canada
Nycomed Investigational Site, Beijing, China
Nycomed Investigational site, Daws Park, Australia
Nycomed Investigational Site, Norwich, United Kingdom
Nycomed, Konstanz, Germany
ALTANA Pharma, Cities in the United Kingdom, United Kingdom
Altana Pharma/Nycomed Investigational Site, Yaxley, United Kingdom
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