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- KhouriCharlesCPharmacovigilance Unit, Grenoble Alpes University Hospital, Grenoble, France; Clinical Pharmacology Department, Grenoble Alpes University Hospital, INSERM CIC1406, Grenoble, France; Univ. Grenoble Alpes, UMR 1042-HP2, INSERM, Grenoble, Franc, Marion Lepelley, Matthieu Roustit, François Montastruc, Marc Humbert, and Jean-Luc Cracowski.
- Pharmacovigilance Unit, Grenoble Alpes University Hospital, Grenoble, France; Clinical Pharmacology Department, Grenoble Alpes University Hospital, INSERM CIC1406, Grenoble, France; Univ. Grenoble Alpes, UMR 1042-HP2, INSERM, Grenoble, France. Electronic address: CKhouri@chu-grenoble.fr.
- Chest. 2018 Jul 1; 154 (1): 136-147.
BackgroundRecent guidelines recommend riociguat, a soluble guanylate cyclase (sGC) stimulator, and the type 5 phosphodiesterase inhibitor (PDE5i) tadalafil or sildenafil as treatments for pulmonary arterial hypertension. We compared the safety profiles of sildenafil, tadalafil, and riociguat in pulmonary hypertension.MethodsWe combined two approaches. First, we performed a meta-analysis of safety data extracted from randomized controlled trials. Second, we conducted a disproportionality analysis of data from VigiBase, the World Health Organization's global database of individual case safety reports, to compare the safety profiles with real-life data.ResultsIn the meta-analysis, a significant difference between the three drugs was only detected for gastrointestinal disorders, in disfavor of riociguat (P < .01 for interaction). In the disproportionality analysis, the use of riociguat was associated with fewer reports of visual disorders but increased reporting of gastrointestinal, hemorrhagic, and musculoskeletal disorders compared with sildenafil and tadalafil. Pharmacovigilance signals of hearing/vestibular disorders were heterogeneous: vestibular disorders (dizziness) were reported more frequently for riociguat, whereas hearing disorders (deafness) were reported less frequently compared with PDE5is.ConclusionsThe safety profiles of PDE5is and sGC stimulators significantly differ in pulmonary hypertension. Accordingly, there is a safety rationale in switching between PDE5is and sGC stimulators because of their different side effects.Trial RegistryPROSPERO; No.: CRD42016051986; URL: https://www.crd.york.ac.uk/prospero/.Copyright © 2017 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.
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