[Placebo control and its methodological issues on clinical trials of acupuncture therapy].

The paper introduces the placebo acupuncture simulation devices commonly used in clinical trial of acupuncture therapy. These devices are composed of Streitberger, Park, Takakura, Foam and Phantom acupuncture. Because acupuncture therapy is a kind of complex intervention, there are the controversies in methodology for the acupuncture placebo control of clinical trial. Placebo acupuncture may be an effective control, with a certain of specific therapeutic effect. The blinding effect of placebo acupuncture is highly questioned, specially, the sensation of deqi is hardly imitated during acupuncture. On these grounds, in this research, the suggestions has been proposed on the selection and the setting of placebo control in clinical trial of acupuncture therapy.