[Application of central randomized system in project of clinical trial for secondary prevention of myocardial infarction by Qishen Yiqi Drop Pill].

Central randomized system (CRS) is actually a management system for actualizing process of clinical trial, which can not only reduce the factitious jamming during randomization to avoid bias, but also play an important role in drug supervision during long-term and large-scale clinical trials in which a large amount of drugs are applied. This article introduced the two main functions of the CRS, i. e. the randomization of testees and the management of drugs, as well as the key points and instructions for applying clinical research interactive voice responding system (CRIVRS) in operating the project of clinical trial for secondary prevention of myocardial infarction by Qishen Yiqi Drop Pill.

RCT Entities:   Population Interventions Outcomes