Self-administered acupressure for chronic severe functional constipation A study protocol for a randomized controlled trial

Background: Functional constipation is a disease with a high incidence, which has a bad effect on general health, mental health, and social functioning. However, current treatment is sometimes unsatisfactory. Acupuncture has been proven effective in some randomized controlled trials. Acupressure is a subtype of acupuncture and can be manipulated by the patients at home. But the evidence is limited now. This study aims to provide some strict evidence for the use of self-administered acupressure in the treatment of functional constipation. Methods: This 2-armed, parallel, nonspecific controlled, randomized trial will be conducted at The Third Affiliated Hospital of Zhejiang Chinese Medical University in Hangzhou. A total of 154 FC patients will be enrolled into the acupoint group and the sham acupoint group with a ratio of 1:1 into this trial and it will consist of a 2-week run-in period, an 8-week intervention period, and an 8-week follow-up period. The treatment will be done by the patients themselves at home twice a day and they should sign in on the WeChat APP every day to make sure they have done the acupressure. The outcome will also be collected in WeChat APP through the diary and questionnaires. For the one who is unable to use the WeChat, the print edition of the diary and questionnaires are provided and the supervision will be done by the short message. The primary outcome will be the proportion of participants whose CSBM >= 3 during week 3 to 10. The secondary outcome will be the proportion of participants whose CSBM >= 3 between 2 groups in week 11 to 18, Spontaneous bowel movements, Bristol Stool Form Scale, Straining severity scores, Patient assessment of constipation quality of life, and Medicine use. Discussion: Acupressure is not an invasive method and can be done by the patient itself at home. We hope this trial will provide credible evidence to the application of self-acupressure for the management of severe chronic functional constipation.