Abstract
Acupuncture has promising effects on chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS), but high-quality evidence is scarce. To assess the long-term efficacy of acupuncture for CP/CPPS. Multicenter, randomized, sham-controlled trial. (ClinicalTrials.gov: NCT03213938). Ten tertiary hospitals in China. Men with moderate to severe CP/CPPS, regardless of prior exposure to acupuncture. Twenty sessions of acupuncture or sham acupuncture over 8 weeks, with 24-week follow-up after treatment. The primary outcome was the proportion of responders, defined as participants who achieved a clinically important reduction of at least 6 points from baseline on the National Institutes of Health Chronic Prostatitis Symptom Index at weeks 8 and 32. Ascertainment of sustained efficacy required the between-group difference to be statistically significant at both time points. A total of 440 men (220 in each group) were recruited. At week 8, the proportions of responders were 60.6% (95% CI, 53.7% to 67.1%) in the acupuncture group and 36.8% (CI, 30.4% to 43.7%) in the sham acupuncture group (adjusted difference, 21.6 percentage points [CI, 12.8 to 30.4 percentage points]; adjusted odds ratio, 2.6 [CI, 1.8 to 4.0]; P< 0.001). At week 32, the proportions were 61.5% (CI, 54.5% to 68.1%) in the acupuncture group and 38.3% (CI, 31.7% to 45.4%) in the sham acupuncture group (adjusted difference, 21.1 percentage points [CI, 12.2 to 30.1 percentage points]; adjusted odds ratio, 2.6 [CI, 1.7 to 3.9]; P<0.001). Twenty (9.1%) and 14 (6.4%) adverse events were reported in the acupuncture and sham acupuncture groups, respectively. No serious adverse events were reported. Sham acupuncture might have had certain physiologic effects. Compared with sham therapy, 20 sessions of acupuncture over 8 weeks resulted in greater improvement in symptoms of moderate to severe CP/CPPS, with durable effects 24 weeks after treatment. China Academy of Chinese Medical Sciences and the National Administration of Traditional Chinese Medicine.
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