PMID- 28507431 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 1177-889X (Print) IS - 1177-889X (Electronic) IS - 1177-889X (Linking) VI - 11 DP - 2017 TI - Targeted drugs for pulmonary arterial hypertension: a network meta-analysis of 32 randomized clinical trials. PG - 871-885 LID - 10.2147/PPA.S133288 [doi] AB - BACKGROUND: Pulmonary arterial hypertension (PAH) is a devastating disease and ultimately leads to right heart failure and premature death. A total of four classical targeted drugs, prostanoids, endothelin receptor antagonists (ERAs), phosphodiesterase 5 inhibitors (PDE-5Is), and soluble guanylate cyclase stimulator (sGCS), have been proved to improve exercise capacity and hemodynamics compared to placebo; however, direct head-to-head comparisons of these drugs are lacking. This network meta-analysis was conducted to comprehensively compare the efficacy of these targeted drugs for PAH. METHODS: Medline, the Cochrane Library, and other Internet sources were searched for randomized clinical trials exploring the efficacy of targeted drugs for patients with PAH. The primary effective end point of this network meta-analysis was a 6-minute walk distance (6MWD). RESULTS: Thirty-two eligible trials including 6,758 patients were identified. There was a statistically significant improvement in 6MWD, mean pulmonary arterial pressure, pulmonary vascular resistance, and clinical worsening events associated with each of the four targeted drugs compared with placebo. Combination therapy improved 6MWD by 20.94 m (95% confidence interval [CI]: 6.94, 34.94; P=0.003) vs prostanoids, and 16.94 m (95% CI: 4.41, 29.47; P=0.008) vs ERAs. PDE-5Is improved 6MWD by 17.28 m (95% CI: 1.91, 32.65; P=0.028) vs prostanoids, with a similar result with combination therapy. In addition, combination therapy reduced mean pulmonary artery pressure by 3.97 mmHg (95% CI: -6.06, -1.88; P<0.001) vs prostanoids, 8.24 mmHg (95% CI: -10.71, -5.76; P<0.001) vs ERAs, 3.38 mmHg (95% CI: -6.30, -0.47; P=0.023) vs PDE-5Is, and 3.94 mmHg (95% CI: -6.99, -0.88; P=0.012) vs sGCS. There were no significant differences in all-cause mortality and severe adverse events between prostanoids, ERAs, PDE-5Is, sGCS, combination therapy, and placebo. CONCLUSION: All targeted drugs for PAH are associated with improved clinical outcomes, especially combination therapy. However, all these drugs seem to show less favorable effects on survival in the short-term follow-up, suggesting further clinical trials are required. FAU - Gao, Xiao-Fei AU - Gao XF AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. FAU - Zhang, Jun-Jie AU - Zhang JJ AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. AD - Department of Cardiology, Nanjing Heart Center, Nanjing, People's Republic of China. FAU - Jiang, Xiao-Min AU - Jiang XM AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. FAU - Ge, Zhen AU - Ge Z AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. AD - Department of Cardiology, Nanjing Heart Center, Nanjing, People's Republic of China. FAU - Wang, Zhi-Mei AU - Wang ZM AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. FAU - Li, Bing AU - Li B AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. FAU - Mao, Wen-Xing AU - Mao WX AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. FAU - Chen, Shao-Liang AU - Chen SL AD - Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing. AD - Department of Cardiology, Nanjing Heart Center, Nanjing, People's Republic of China. LA - eng PT - Journal Article DEP - 20170508 PL - New Zealand TA - Patient Prefer Adherence JT - Patient preference and adherence JID - 101475748 PMC - PMC5428768 OTO - NOTNLM OT - 6-minute walk distance OT - network meta-analysis OT - prostanoids OT - pulmonary arterial hypertension OT - targeted drugs COIS- Disclosure The authors report no conflicts of interest in this work. EDAT- 2017/05/17 06:00 MHDA- 2017/05/17 06:01 PMCR- 2017/05/08 CRDT- 2017/05/17 06:00 PHST- 2017/05/17 06:00 [entrez] PHST- 2017/05/17 06:00 [pubmed] PHST- 2017/05/17 06:01 [medline] PHST- 2017/05/08 00:00 [pmc-release] AID - ppa-11-871 [pii] AID - 10.2147/PPA.S133288 [doi] PST - epublish SO - Patient Prefer Adherence. 2017 May 8;11:871-885. doi: 10.2147/PPA.S133288. eCollection 2017.