Long-term treatment of pulmonary arterial hypertension with macitentan in Japanese patients.
Nobuhiro TaharaHiroaki DobashiKeiichi FukudaMasanori FunauchiMasaru HatanoSatoshi IkedaShuji JohoYasuki KiharaTakahisa KondoMasakazu MatsushitaTohru MinaminoNorifumi NakanishiYoshiaki OkanoYukio OzakiTsutomu SajiSatoshi SakaiNobuhiro TanabeHiroshi WatanabeHidehiro YamadaKoichiro YoshiokaMotonori HattaShigetake SasayamaPublished in: Current medical research and opinion (2020)
Objective: Macitentan, a novel dual endothelin receptor antagonist, was approved for the treatment of pulmonary arterial hypertension (PAH) in Japan. However, long-term effects in Japanese patients of macitentan are currently unavailable. This study sought to assess the long-term efficacy and safety of macitentan in Japanese patients with PAH.Methods: In this multicenter, open-label, clinical extension study (JapicCTI-121986), efficacy was evaluated based on the change from baseline at 24, 48, 72, 96 and 120-week in the 6-minute walk distance (6MWD), World Health Organization (WHO) functional class, and serum N-terminal pro-brain natriuretic peptide (NT-pro-BNP) levels. In addition, the time to a hospitalization related to PAH and a morbidity/mortality event was determined. As for safety, the incidence of adverse events and changes in laboratory data and vital signs were assessed.Results: Macitentan was administered at a once-daily dose of 10 mg in 30 PAH patients with a median treatment period of 2.4 years (range, 229-1037 days). The improvements in 6MWD, WHO functional class and NT-pro-BNP at week 24 were maintained throughout the long-term follow-up. Hospitalization related to PAH occurred in 2 patients. Levels of liver enzyme and hemoglobin remained unchanged throughout the study period.Conclusions: This study suggests that the long-term use of macitentan is well tolerated and effective in Japanese patients with PAH. We concluded that macitentan can be a possible approach to reduce morbidity/mortality in Japanese PAH patients.
Keyphrases
- pulmonary arterial hypertension
- pulmonary artery
- pulmonary hypertension
- end stage renal disease
- chronic kidney disease
- ejection fraction
- cardiovascular disease
- polycyclic aromatic hydrocarbons
- clinical trial
- cardiovascular events
- coronary artery
- coronary artery disease
- radiation therapy
- machine learning
- prognostic factors
- physical activity
- white matter
- rectal cancer
- drug induced
- replacement therapy
- patient reported
- phase ii study