• Boyong Qiu, Ping Zhao, Lin Shen, Siyu Qiao, Guanghao Li, Bing Deng, Duan Zhou, and Yihong Wei.
• Department of cardiology, Longhua Hospital affiliated to Shanghai University of Traditional Chinese Medicine. Shanghai, PR China.
• Medicine (Baltimore). 2021 Apr 2; 100 (13): e25383e25383.

IntroductionDiastolic heart failure (DHF) is an important pathological type of heart failure, that involves multiple organ dysfunction and multiple complications. The prevalence of DHF is high, and effective treatments are lacking. Chinese herbs are an alternative therapy for DHF. Shen'ge formula (SGF) is a classical formula from which patients can benefit, but convincing evidence of its efficacy is lacking. Therefore, we designed this randomized controlled trial protocol.Methods/DesignThis randomized, double-blind, placebo-controlled clinical trial will evaluate the efficacy and safety of SGF in the treatment of DHF. A total of 130 patients with DHF will be enrolled in the trial and treated with SGF granules or placebo for 12 weeks and followed up for 12 weeks. The primary outcome measurement will be to changes in plasma N-terminal brain natriuretic peptide precursor before versus after treatment, while the second primary outcome measurement will be changes in heart function before versus after treatment and the 12-week follow-up period. It will also include echocardiography, a cardiopulmonary exercise test, cardiac function grading, traditional Chinese medicine syndrome score, and the Minnesota Heart Failure Quality of Life Scale. Adverse events will be evaluated throughout the trial.DiscussionThe results of this trial will demonstrate whether SGF could alleviate symptoms, improve cardiac function, reduce readmission rates, and improve quality of life of patients with DHF.Trial RegistrationChinese Clinical Trial Register, ChiCTR2000036533, registered on August 24, 2020.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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