A randomized, sham-controlled trial published in Movement Disorders found that Qihuang needle therapy, a specialized acupuncture technique, improved motor function, nonmotor symptoms, and quality of life in patients with idiopathic Parkinson disease when added to stable medication regimens. The benefits were sustained at 10-week follow-up, 4 weeks after the final treatment session.
The study, conducted by senior author Zhenhu Chen, MD, and colleagues, enrolled 140 patients with idiopathic Parkinson disease, randomizing them to receive either Qihuang needle therapy or sham acupuncture over 9 sessions across 6 weeks, alongside their usual anti-Parkinson medications.
Study Methodology
Qihuang needle therapy uses a hollow, oval-tipped needle and targets 3 to 5 acupoints per session with strong manual stimulation to elicit Deqi sensation, in contrast to conventional multi-point, retained acupuncture approaches. Sham controls received shallow needling at non-acupoint sites with no manual stimulation.
The primary outcome was change in Unified Parkinson’s Disease Rating Scale Part III score from baseline to week 6, with follow-up assessment at week 10. Secondary outcomes included the Non-Motor Symptoms Scale and the 39-item Parkinson’s Disease Questionnaire.
Key Findings
At week 6, the Qihuang needle therapy group showed a mean improvement of 13.78 points in Unified Parkinson’s Disease Rating Scale Part III score, compared to 5.32 points in the sham group, yielding a between-group difference of 8.45 points. This advantage widened to 10.88 points by week 10.
Subgroup analysis by motor phenotype revealed a significant treatment-by-subtype interaction, with the greatest motor benefit seen in patients with postural instability and gait disorder–dominant disease, followed by mixed and tremor-dominant subtypes.
Clinical Context and Interpretation
Parkinson disease affects a growing global population, and current medical and surgical therapies do not alter disease progression, which is why there is interest in adjunctive, non-pharmacologic strategies. Prior acupuncture research in Parkinson disease has been heterogeneous in quality, and rigorous, sham-controlled data specific to specialized techniques such as Qihuang needle therapy have been limited.
The authors noted that penetrating sham needles are now understood to carry their own “insert-specific” physiological effects, meaning the observed between-group differences may represent a conservative estimate of Qihuang needle therapy’s true benefit.
Limitations of the study include the single-center design, 10-week follow-up window, and lack of blinding among treating acupuncturists, which limit generalizability and introduce potential performance bias. The authors called for multicenter trials with larger cohorts, longer follow-up, alternative sham-control designs, and neuroimaging or biomarker analyses to clarify the central mechanisms underlying Qihuang needle therapy’s effects.