Trial results for the iTALKbetter digital intervention for neurorehabilitation in stroke patients were posted on ClinicalTrials.gov on 2026-03-10, involving 31 participants. The study investigated an app-based therapy designed to improve word retrieval difficulties, specifically targeting aphasia and anomia following a stroke.
Background
Stroke is a leading cause of long-term disability, and a significant number of survivors experience aphasia, a condition that impairs the ability to communicate. Aphasia can manifest as difficulties with speaking, understanding, reading, and writing. Anomia, a common symptom of aphasia, specifically refers to the inability to recall the names of objects. These communication impairments can severely impact a patient's quality of life, social participation, and independence. Traditional speech and language therapy is often resource-intensive, and digital interventions like app-based therapies offer a potentially accessible and scalable solution for ongoing neurorehabilitation, allowing patients to practice word retrieval exercises independently.
Trial design
This completed study, designated as Phase NA, enrolled 31 participants. The trial focused on individuals diagnosed with Stroke, Aphasia, and Anomia. The primary aim was to test an app-based therapy, iTALKbetter, for people with naming difficulties through a small-scale item-randomized controlled trial. The intervention involved the use of the iTALKbetter application, which provides therapy for word retrieval difficulties.
Key results
The trial reported several key measurements related to accuracy performance on a bespoke word retrieval test (WRT) for the iTALKbetter group:
- Accuracy Performance (%) on a Bespoke Word Retrieval Test: WRT. Two Conditions: 1. Trained Items 2. Untrained Items: A mean accuracy of 38.3% (Standard Error 0.85) was observed.
- Accuracy Performance (%) on a Bespoke Word Retrieval Test: WRT. Two Conditions: 1. Trained Items 2. Untrained Items: A mean accuracy of 38.4% (Standard Error 0.95) was observed.
- Accuracy Performance (%) on a Bespoke Word Retrieval Test: WRT. Two Conditions: 1. Trained Items 2. Untrained Items: A mean accuracy of 50.6% (Standard Error 1.8) was observed.
- Accuracy Performance (%) on a Bespoke Word Retrieval Test: WRT. Two Conditions: 1. Trained Items 2. Untrained Items: A mean accuracy of 43% (Standard Error 1.95) was observed.
A key analysis using a 2x2 within-subjects, repeated measures ANOVA was conducted. This analysis tested the hypothesis that there is a significant Time*Item interaction, specifically driven by an increase in accuracy on trained items at a later time point (T4). The ANOVA yielded an F value of 10.41 with a p-value of 0.003, indicating a statistically significant interaction.
What this means
The results suggest that the iTALKbetter app, a digital intervention for neurorehabilitation, shows promise in improving word retrieval accuracy for individuals with aphasia and anomia following a stroke. The statistically significant Time*Item interaction (p=0.003) indicates that the app's therapy led to a specific increase in accuracy for items that were targeted and trained within the app. This finding supports the potential utility of digital, app-based tools as a complementary approach in speech and language therapy for stroke survivors, offering a structured way to practice and potentially regain naming abilities.
Source
The information regarding these trial results was obtained from ClinicalTrials.gov, a public database of clinical studies. The results for the study NCT04566081, titled "Digital Interventions in Neurorehabilitation: iTALKbetter", were posted on 2026-03-10 on clinicaltrials.gov.