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1.
Clin Pharmacol Ther ; 111(6): 1239-1247, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35258101

RESUMO

Vericiguat is a soluble guanylate cyclase stimulator indicated to reduce the risk of cardiovascular death and heart failure (HF) hospitalization in adults with symptomatic chronic HF and ejection fraction less than 45%. Guidelines recommend short-acting nitrates, such as sublingual nitroglycerin, for the treatment of acute angina pectoris in patients with chronic coronary syndromes (CCSs), common comorbidities in HF. We evaluated safety, tolerability, and the pharmacodynamic interaction between vericiguat and nitroglycerin, coadministered in patients with CCSs. In this phase Ib, double-blind, randomized, multicenter study, 36 patients with CCSs received either vericiguat 2.5 mg (up-titrated every 2 weeks to 5 mg and 10 mg) or placebo. Patients also received nitroglycerin (0.4 mg sublingual). In total, 31 patients completed the study (vericiguat + nitroglycerin, n = 21; placebo + nitroglycerin, n = 10). There was no increase in treatment-emergent adverse events (TEAEs) with vericiguat + nitroglycerin vs. placebo + nitroglycerin; three patients discontinued due to TEAEs (vericiguat + nitroglycerin, n = 1; placebo + nitroglycerin, n = 2). Decreases in mean blood pressure (BP; 6-10 mmHg systolic BP (SBP); 4-6 mmHg diastolic BP (DBP)) were independent of vericiguat exposure and occurred to a similar extent at trough and peak concentrations with all vericiguat doses and placebo. Coadministration of vericiguat with nitroglycerin in patients with CCSs was well tolerated, and the combination is unlikely to cause significant adverse effects beyond those known for nitroglycerin.


Assuntos
Insuficiência Cardíaca , Compostos Heterocíclicos com 2 Anéis , Adulto , Método Duplo-Cego , Insuficiência Cardíaca/tratamento farmacológico , Compostos Heterocíclicos com 2 Anéis/efeitos adversos , Humanos , Nitroglicerina/efeitos adversos , Pirimidinas , Volume Sistólico/fisiologia , Síndrome
2.
J Clin Pharmacol ; 49(10): 1239-46, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19592595

RESUMO

Systemic exposure to anticholinergics used for chronic obstructive pulmonary disease (COPD) may lead to side effects. This study assessed safety, tolerability, and pharmacokinetics of multiple doses of aclidinium bromide, a novel, long-acting antimuscarinic. Sixteen healthy participants received aclidinium bromide 200, 400, or 800 microg or placebo by dry-powder inhaler for 5 days, with > or =7 days washout. Aclidinium bromide and metabolite pharmacokinetics were assessed. Aclidinium bromide plasma levels were below the lower limit of quantification (LLOQ: 0.05 ng/mL) after 200 microg and in most participants after 400 microg. Plasma levels in all participants were below the LLOQ at all doses, including the highest dose, beyond 1 hour postdose. AUC(0-t) and C(max) at steady state were, respectively, 0.08 ng.h/mL and 0.12 ng/mL (aclidinium bromide), 0.40 ng.h/mL and 0.14 ng/mL (alcohol metabolite), and 13.47 ng.h/mL and 2.26 ng/mL (acid metabolite). The t(max) for aclidinium bromide 800 microg was 15 minutes (first kinetic time point). Adverse event frequency was comparable between treatment groups and placebo. The most commonly reported adverse events, probably treatment related, were coughing (n = 2) and dysphagia (n = 1); 94% of adverse events were mild. These data suggest a low systemic bioavailability and favorable safety profile for aclidinium bromide with repeated dosing for COPD.


Assuntos
Broncodilatadores/efeitos adversos , Broncodilatadores/farmacocinética , Antagonistas Muscarínicos/efeitos adversos , Antagonistas Muscarínicos/farmacocinética , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Tropanos/efeitos adversos , Tropanos/farmacocinética , Administração por Inalação , Adulto , Broncodilatadores/administração & dosagem , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Antagonistas Muscarínicos/administração & dosagem , Tropanos/administração & dosagem
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