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Wang G, Wang P, Li Y, Liu W, Bai S, Zhen Y, Li D, Yang P, Chen Y, Hong L, Sun J, Chen J, Wang X, Zhu J, Hu D, Li H, Wu T, Huang J, Tan H, Zhang J, Liao Z, Yu L, Mao Y, Ye S, Feng L, Hua Y, Ni X, Zhang Y, Wang Y, Li W, Luan X, Sun X, Wang S. Efficacy and Safety of 1-Hour Infusion of Recombinant Human Atrial Natriuretic Peptide in Patients With Acute Decompensated Heart Failure: A Phase III, Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial. Medicine (Baltimore) 2016; 95:e2947. [PMID: 26945407 PMCID: PMC4782891 DOI: 10.1097/md.0000000000002947] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/11/2016] [Accepted: 02/08/2016] [Indexed: 11/29/2022] Open
Abstract
The aim of the study was to evaluate the efficacy and safety of 1-h infusion of recombinant human atrial natriuretic peptide (rhANP) in combination with standard therapy in patients with acute decompensated heart failure (ADHF). This was a phase III, randomized, double-blind, placebo-controlled, multicenter trial. Eligible patients with ADHF were randomized to receive a 1-h infusion of either rhANP or placebo at a ratio of 3:1 in combination with standard therapy. The primary endpoint was dyspnea improvement (a decrease of at least 2 grades of dyspnea severity at 12 h from baseline). Reduction in pulmonary capillary wedge pressure (PCWP) 1 h after infusion was the co-primary endpoint for catheterized patients. Overall, 477 patients were randomized: 358 (93 catheterized) patients received rhANP and 118 (28 catheterized) received placebo. The percentage of patients with dyspnea improvement at 12 h was higher, although not statistically significant, in the rhANP group than in the placebo group (32.0% vs 25.4%, odds ratio=1.382, 95% confidence interval [CI]: 0.863-2.212, P = 0.17). Reduction in PCWP at 1 h was significantly greater in patients treated with rhANP than in patients treated with placebo (-7.74 ± 5.95 vs -1.82 ± 4.47 mm Hg, P < 0.001). The frequencies of adverse events and renal impairment within 3 days of treatment were similar between the 2 groups. Mortality at 1 month was 3.1% in the rhANP group vs 2.5% in the placebo group (hazard ratio = 1.21, 95% CI: 0.34-4.26; P > 0.99). 1-h rhANP infusion appears to result in prompt, transient hemodynamic improvement with a small, nonsignificant, effect on dyspnea in ADHF patients receiving standard therapy. The safety of 1-h infusion of rhANP seems to be acceptable. (WHO International Clinical Trials Registry Platform [ICTRP] number, ChiCTR-IPR-14005719.).
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Affiliation(s)
- Guogan Wang
- From the Department of Cardiology (G. Wang, P. Wang, J. Huang, H. Tan, J. Zhang, Z. Liao, L. Yu, Y. Mao, S. Ye, L. Feng, Y. Hua, X. Ni, Y. Zhang, X. Luan, X. Sun, S. Wang), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College; Heart Center (P. Wang), First Hospital of Tsinghua University; Key Laboratory of Cardiovascular Drugs of Ministry of Health (Y. Li), Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College; Department of Cardiology (W. Liu, S. Bai), Beijing Anzhen Hospital, The Capital University Medical Sciences, Beijing; Department of Cardiology (Y. Zhen), The First Hospital of Jilin University, Changchun; Department of Cardiology (D. Li), The Affiliated Hospital of Xuzhou Medical College, Xuzhou; Department of Cardiology (P. Yang, Y. Chen), China-Japan Friendship Hospital, Jilin University, Changchun; Department of Cardiology (LH), Jiangxi Provincial People's Hospital, Nanchang; Department of Cardiology (J. Sun), The First People's Hospital of Changzhou, Changzhou; Department of Cardiology (J. Chen), First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou; Department of Cardiology (X. Wang), Beijing Military General Hospital; Department of Cardiology (J. Zhu, D. Hu), Peking University People's Hospital, Beijing; Department of Cardiology (H. Li), The 254 Hospital of People's Liberation Army, Tianjin; Department of Cardiology (T. Wu), Guangzhou Red Cross Hospital, Guangzhou; and Medical Research & Biometrics Center (Y. Wang, W. Li), National Center for Cardiovascular Diseases, Beijing, China
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Wang P, Luan X, Wang G, Liu W, Zhang J, Li W, Gao X, Wang Y, Mao Y, Sun X, Wang Q, Zhang Y, Bai S. Efficacy and safety of short-term administration of recombinant human atrial natriuretic peptide (rhANP) for congestive heart failure: a phase II, multicentre randomized controlled dose-finding study. J Clin Pharm Ther 2013; 38:388-93. [PMID: 23672267 DOI: 10.1111/jcpt.12072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Accepted: 04/21/2013] [Indexed: 11/29/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Although the long-term infusion of ANP has proved effective to treat heart failure, no published randomized controlled study has been reported to confirm the efficacy of the short-term ANP infusion in congestive heart failure (CHF) patients. This study was designed to assess the efficacy and safety of short-term infusion of recombinant human atrial natriuretic peptide (rhANP) in CHF patients. METHODS A total of 48 patients with CHF were enrolled and randomized into four groups, treated with standard therapy or rhANP (0·05, 0·1 or 0·2 μg/kg/min) for 1-hour infusion in addition to standard therapy. The hemodynamics were assessed for 12 h by Swan-Ganz catheter. RESULTS AND DISCUSSION The effect of the 0·05 μg/kg/min rhANP dose group on CO was modest and transient. The 0·2 μg/kg/min rhANP dose group tended to be associated with better effect on SV, CO and dyspnoea improvement, but modest effect on PCWP and more adverse events probably attributed to the study drug. However, the 0·1 μg/kg/min rhANP infusion was well tolerated and effective both on PCWP decrease (maximum:-9·46 ± 5·81 mmHg compared with baseline (P = 0·0002) and -6·75 mmHg compared with standard therapy, the 95% confidential interval [-13·43, -0·06 mmHg] at 1 h) and CO increase (maximum: 1·02 ± 1·43 L/min [P = 0·0308] at 1 h). WHAT IS NEW AND CONCLUSION In this small-sample study, 1-hour infusion of rhANP produced beneficial hemodynamic effects in CHF patients compared with standard therapy, and it was well tolerated. 0·1 μg/kg/min may be the optimum dose for short-term rhANP infusion to treat CHF for the further large sample trial before clinical application.
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Affiliation(s)
- P Wang
- State Key Laboratory of Cardiovascular Diseases, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Fida HM, Kumada Y, Terashima M, Katsuda T, Katoh S. Tandem multimer expression of angiotensin I-converting enzyme inhibitory peptide in Escherichia coli. Biotechnol J 2009; 4:1345-56. [PMID: 19396904 DOI: 10.1002/biot.200800326] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
It is common for small tandem peptide multimer genes to be indirectly inserted into expression vectors and fused with a protein tag. In this study, a multimer of the tandem angiotensin I-converting enzyme inhibitory peptide (ACE-IP) gene was directly transferred to a commercially available vector and the designed gene was expressed as a repeated peptide in Escherichia coli BL21(DE3)pLysS. The process further developed in our study was the construction of six-repeated ACE-IP synthetic genes and their direct insertion. Protein expression in inclusion bodies was confirmed by SDS-PAGE and Western blot. Acid hydrolysis of inclusion bodies produced single-unit peptides through cleavage of the aspartyl-prolyl bonds. This cleaved recombinant peptide (rACE-IP) was purified using immuno-affinity chromatography followed by reversed phase-HPLC. 105-115 mg of the lyophilized recombinant peptide was obtained from 1 L E. coli culture. In vitro biological activity of rACE-IP was indistinguishable from that of the natural peptide produced by hydrolysis in artificial gastric juice or by acidic hydrolysis. The rACE-IP prepared by recombinant DNA technology and solid-phase synthesis methods showed a similar IC(50). This strategy could be used for the expression of important peptides, which have N-terminal proline (P) and C-terminal aspartic acid residues (D) for commercial applications, e.g. functional foods and drinks.
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Affiliation(s)
- Hasan M Fida
- Department of Molecular Science and Material Engineering, Graduate School of Science and Technology, Faculty of Engineering, Kobe University, Kobe, Japan
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