作者
Mihai Gheorghiade,Stephen J. Greene,Javed Butler,Gerasimos Filippatos,Carolyn S.P. Lam,Aldo P. Maggioni,Piotr Ponikowski,Sanjiv J. Shah,Scott D. Solomon,Elisabeth Kraigher‐Krainer,Eliana T. Samano,Katharina Müller,Lothar Roessig,Burkert Pieske
摘要
Importance
Worsening chronic heart failure (HF) is a major public health problem. Objective
To determine the optimal dose and tolerability of vericiguat, a soluble guanylate cyclase stimulator, in patients with worsening chronic HF and reduced left ventricular ejection fraction (LVEF). Design, Setting, and Participants
Dose-finding phase 2 study that randomized 456 patients across Europe, North America, and Asia between November 2013 and January 2015, with follow-up ending June 2015. Patients were clinically stable with LVEF less than 45% within 4 weeks of a worsening chronic HF event, defined as worsening signs and symptoms of congestion and elevated natriuretic peptide level requiring hospitalization or outpatient intravenous diuretic. Interventions
Placebo (n = 92) or 1 of 4 daily target doses of oral vericiguat (1.25 mg [n = 91], 2.5 mg [n = 91], 5 mg [n = 91], 10 mg [n = 91]) for 12 weeks. Main Outcomes and Measures
The primary end point was change from baseline to week 12 in log-transformed level of N-terminal pro-B-type natriuretic peptide (NT-proBNP). The primary analysis specified pooled comparison of the 3 highest-dose vericiguat groups with placebo, and secondary analysis evaluated a dose-response relationship with vericiguat and the primary end point. Results
Overall, 351 patients (77.0%) completed treatment with the study drug with valid 12-week NT-proBNP levels and no major protocol deviation and were eligible for primary end point evaluation. In primary analysis, change in log-transformed NT-proBNP levels from baseline to week 12 was not significantly different between the pooled vericiguat group (log-transformed: baseline, 7.969; 12 weeks, 7.567; difference, −0.402; geometric means: baseline, 2890 pg/mL; 12 weeks, 1932 pg/mL) and placebo (log-transformed: baseline, 8.283; 12 weeks, 8.002; difference, −0.280; geometric means: baseline, 3955 pg/mL; 12 weeks, 2988 pg/mL) (difference of means, −0.122; 90% CI, −0.32 to 0.07; ratio of geometric means, 0.885, 90% CI, 0.73-1.08;P = .15). The exploratory secondary analysis suggested a dose-response relationship whereby higher vericiguat doses were associated with greater reductions in NT-proBNP level (P < .02). Rates of any adverse event were 77.2% and 71.4% among the placebo and 10-mg vericiguat groups, respectively. Conclusions and Relevance
Among patients with worsening chronic HF and reduced LVEF, compared with placebo, vericiguat did not have a statistically significant effect on change in NT-proBNP level at 12 weeks but was well-tolerated. Further clinical trials of vericiguat based on the dose-response relationship in this study are needed to determine the potential role of this drug for patients with worsening chronic HF. Trial Registration
clinicaltrials.gov Identifier:NCT01951625