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Replacing a phosphodiesterase-5 inhibitor with riociguat in patients with connective tissue disease-associated pulmonary arterial hypertension: a case series.

ABSTRACT: Patients with pulmonary arterial hypertension associated with connective tissue disease (PAH-PAH-CTD) such as systemic sclerosis (SSc) have a poorer response to treatment and increased mortality compared with patients with idiopathic PAH. Current treatment options for PAH-CTD include prostanoids, phosphodiesterase type-5 inhibitors (PDE-5i), endothelin receptor antagonists, and the soluble guanylate cyclase stimulator riociguat. In this case series, we describe three patients with PAH-CTD related to limited scleroderma who were switched from a PDE-5i to riociguat due to insufficient clinical response. The switch to riociguat was associated with an improvement in respiratory and hemodynamic parameters and a favorable tolerability profile. These cases demonstrate that switching to riociguat is a therapeutic option in patients with PAH-CTD who have not achieved a satisfactory clinical response to a PDE-5i.

SUBMITTER: Raina A

PROVIDER: S-EPMC5841890 | biostudies-literature | 2017 Jul-Sep

REPOSITORIES: biostudies-literature

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Replacing a phosphodiesterase-5 inhibitor with riociguat in patients with connective tissue disease-associated pulmonary arterial hypertension: a case series.

Raina Amresh A Benza Raymond L RL Farber Harrison W HW

Pulmonary circulation 20170701 3

Patients with pulmonary arterial hypertension associated with connective tissue disease (PAH-PAH-CTD) such as systemic sclerosis (SSc) have a poorer response to treatment and increased mortality compared with patients with idiopathic PAH. Current treatment options for PAH-CTD include prostanoids, phosphodiesterase type-5 inhibitors (PDE-5i), endothelin receptor antagonists, and the soluble guanylate cyclase stimulator riociguat. In this case series, we describe three patients with PAH-CTD relate ...[more]

PMID: 28671485

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Project description:ObjectivesFew studies have focused on pulmonary arterial hypertension (PAH) associated with connective tissue diseases (CTDs). The optimal treatment for CTD-PAH has yet to be established.DesignMeta-analysis of the data from evaluations of treatment for PAH generally (19 studies) and CTD-PAH specifically (nine studies) to compare the effects of pulmonary vasodilative PAH agents. MEDLINE, EMBASE and BIOSIS were searched. English-language full-text articles published between January 1990 and August 2012 were eligible.SettingInternational.ParticipantsPatients with PAH generally (n=3073) and CTD-PAH specifically (n=678).Primary outcome measureExercise capacity (6 min walk distance, 6 MWD).ResultsPatients with PAH (all forms) had mean age 32-55 years (women, 61-87%); CTD-PAH patients had mean age 45-55 years (women, 74-95%). Overall estimate of mean change in 6 MWD from baseline (95% CI) for the active treatment group versus the control group in all patients with PAH was 34.6 m (27.4-41.9 m). Pooled mean differences from the results for patients receiving placebo by subgroup of patients receiving phosphodiesterase (PDE)-5 inhibitors, endothelin receptor antagonists (ERAs) and prostacyclin (PGI2) analogues were 22.4-45.5, 39.5-44.2 and 12.4-64.9 m, respectively. Overall estimate of mean difference between changes in 6 MWD in patients with CTD-PAH was 34.2 m (23.3-45.0 m). Pooled mean differences by subgroup of patients receiving PDE-5 inhibitors, ERAs and PGI2 analogues in patients with CTD-PAH were 37.0-47.1, 14.1-21.7 and 21.0-108.0 m, respectively. ERAs were less effective in patients with CTD-PAH than all-form patients with PAH: 14.1 m (-4.4-32.6 m) vs 39.5 m (19.5-59.6 m) for bosentan and 21.7 m (2.2-41.3 m) vs 44.2 m (30.2-58.2 m) for ambrisentan.ConclusionsAll three types of PAH agent are effective. However, ERAs may be a less effective choice against CTD-PAH; further studies are needed. Limitations include the limited number of studies for some agents and for patients with CTD-PAH.

Dataset Information

Replacing a phosphodiesterase-5 inhibitor with riociguat in patients with connective tissue disease-associated pulmonary arterial hypertension: a case series.

Publications

Replacing a phosphodiesterase-5 inhibitor with riociguat in patients with connective tissue disease-associated pulmonary arterial hypertension: a case series.

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