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A New Trial Seeks Objective Evidence for Acupuncture in Tinnitus

A new clinical trial is preparing to test whether the ancient practice of acupuncture can quiet the persistent phantom sounds of tinnitus. The study, registered as NCT07522567, will go beyond patient questionnaires. It will directly measure changes in the brain’s auditory pathways to see if a biological effect accompanies any reported relief.

Chronic tinnitus, the perception of ringing or buzzing without an external source, affects millions. While sound therapy and counseling help many, a universally effective treatment remains elusive. Acupuncture is a popular complementary approach, but scientific evidence for its efficacy has been mixed and often subjective. This trial aims to change that by pairing clinical outcomes with hard neurophysiological data from auditory brainstem response (ABR) tests.

How the Trial Will Work: Questionnaires and Brain Waves

The study is structured as both a matched case-control and a self-controlled trial. It plans to enroll 72 participants. First, researchers will compare the auditory brainstem response of adults with chronic tinnitus to that of age- and sex-matched healthy controls. This step aims to document specific neural abnormalities associated with tinnitus.

Participants with tinnitus will then undergo a course of ten acupuncture sessions. The primary tools for measuring subjective improvement are two validated questionnaires: the Tinnitus Handicap Inventory (THI) and the Tinnitus Effects Questionnaire (TEQ). These tools quantify the disability and distress caused by the condition.

The objective core of the trial lies in the ABR tests. An ABR measures the electrical activity of the auditory nerve and brainstem in response to sound. Researchers will specifically track parameters like the amplitude of wave I (linked to auditory nerve function) and the latency of wave V (linked to brainstem processing). Measurements will be taken before and after the acupuncture course to identify any shifts.

The Scientific Rationale: Connecting Perception to Physiology

Tinnitus is increasingly understood as a symptom of maladaptive neuroplasticity. When hearing loss or damage occurs, the brain’s central auditory system can become hyperactive, generating the perception of sound. The ABR provides a window into this early stage of neural processing in the brainstem.

Some research suggests tinnitus may be associated with reduced wave I amplitude (indicating possible cochlear nerve dysfunction) and altered wave V timing. If acupuncture can modulate neural activity, these changes might be detectable in the ABR. A correlation between improved ABR measures and lower scores on the THI and TEQ would provide a stronger, two-part argument for acupuncture’s biological effect, moving beyond a placebo explanation.

Who Can Participate and Current Status

The trial has strict eligibility criteria to control variables. Participants must be between 18 and 60 years old with no history of chronic functional or organic diseases, head injury, or psychiatric/neurological family genetic diseases. This focuses the investigation on a relatively healthy cohort where tinnitus is a primary complaint.

Key exclusions include pregnancy, metallic body implants that could interfere with testing, and current participation in another interventional trial. The study status is listed as NOT_YET_RECRUITING. Potential participants should monitor its listing on ClinicalTrials.gov for updates on recruitment openings.

Potential Implications for Tinnitus Management

If this trial finds that acupuncture leads to consistent improvements in both subjective reports and ABR readings, it would offer a more substantive evidence base for integrating this therapy into tinnitus management plans. It could help identify which patients are most likely to benefit based on their neurophysiological profile.

More broadly, the study exemplifies a shift toward multimodal assessment in tinnitus research. Combining patient-reported outcomes with objective biomarkers is a method for building more convincing and personalized treatment protocols. The results, expected after the trial’s completion, will add a specific data point to the ongoing discussion about the role of complementary medicine in treating complex neurological conditions like chronic tinnitus.

This article is for informational purposes only. Consult a qualified professional for personalised advice.

Source:
Efficacy of Acupuncture on Chronic Tinnitus and Its Association With Auditory Brainstem Response Measures (ClinicalTrials.gov: NCT07522567)