Digital Therapeutic App for Chronic Tinnitus

This randomized clinical trial tested a prototype mobile app designed to deliver digital therapeutic content for individuals with chronic tinnitus.

**Key Takeaways**
* A therapeutic mobile app combining education and cognitive behavioral therapy (CBT) elements significantly reduced tinnitus-related distress and functional impairment over 16 weeks compared to a sham-control app.
* The treatment effect was substantial, with the therapeutic app group showing nearly twice the improvement on the primary outcome measure, and the benefit was maintained at follow-up.
* The app was safe, with no serious adverse events or device malfunctions reported, making it a potentially accessible and standardized intervention.

### **The Problem with Chronic Tinnitus**
Tinnitus, the perception of sound without an external source, is a highly prevalent condition that can severely impair quality of life. While cognitive behavioral therapy (CBT) and hearing aids can help, especially when hearing loss is present, access to these interventions remains limited for many. This creates a significant gap in care for a chronic, distressing condition that lacks a cure.

### **Testing a Digital Therapeutic Solution**
Researchers developed a prototype digital therapeutic app designed to provide educational counseling and incorporate key elements of CBT. To test its efficacy, safety, they conducted a double-blind, sham-controlled randomized clinical trial.

**Participants:** 60 adults diagnosed with mild to severe chronic tinnitus.
**Intervention:** Participants were randomly assigned to use either the therapeutic app (n=30) or a sham-control app (n=30). The sham app looked identical but lacked all active therapeutic functions.
**Outcome Measures:** The primary outcome was change from baseline in the Tinnitus Handicap Inventory (THI) score, a validated measure of tinnitus-related distress and functional impairment, after 16 weeks. Secondary outcomes included other patient-reported measures of tinnitus impact, anxiety, depression, and sleep.

### **Significant and Lasting Improvement Found**
The results were clear:
* **Greater Distress Reduction:** At week 16, the group using the therapeutic app showed significantly greater improvement in THI scores compared to the sham-control group. The between-group difference was -20.4 points (95% CI, -28.2 to -12.6).
* **Treatment Effect Maintained:** This benefit was largely maintained during the ৮-week follow-up period. At week 24, the between-group difference was -18.3 points (95% CI, -26.4 to -10.1).
* **Safe and Well-Tolerated:** No serious adverse events or app malfunctions were reported. Tinnitus symptoms worsened in only one patient, that was in the sham-control group.

### **Implications for Accessible Tinnitus Care**
This trial provides robust evidence that a structured, evidence-based digital therapeutic delivered via mobile app can be an effective treatment for chronic tinnitus. The app, developed by Dr. Koichiro Wasano and colleagues, resulted in substantial and lasting clinical improvement.

This approach addresses a critical access barrier. A standardized, scalable app can deliver core therapeutic components to patients who may not have ready access to specialized tinnitus clinics or CBT therapists. It represents a promising, practical tool for integrating into stepped-care models for tinnitus management, offering a first-line intervention that is both effective and readily available.

**Source:** Wasano K, Kawasaki T, et al. Mobile Application as a Digital Therapeutic for Chronic Tinnitus: A Randomized Clinical Trial. *JAMA Otolaryngol Head Neck Surg*. 2024. doi:10.1001/jamaoto.2024.0858. PMID: 42096236.

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**Linked Research on This Site:**
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