Treating Primary Progressive Aphasia (PPA) Using tDCS
Public ClinicalTrials.gov record NCT04566731. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Using Transcranial Direct Current Stimulation to Reveal Mechanisms of Language Loss and to Treat Progressive Aphasia Associated With FTD and Related Dementias
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a double-blind, sham-controlled, crossover study in which subjects with the non-fluent/agrammatic and semantic variants of primary progressive aphasia (naPPA and svPPA, respectively) will undergo language testing and structural and functional brain imaging before and after receiving 10 semi-consecutive daily sessions of real or sham transcranial direct current stimulation (tDCS) paired with modified constraint-induced language therapy (mCILT). Language testing and brain imaging will be repeated immediately after completion of and up-to 24 weeks following completion of treatment. The investigators will examine changes in language performance induced by tDCS + mCILT compared to sham tDCS + mCILT. The investigators will also use network science to analyze brain imaging (fMRI) data to identify network properties associated with baseline PPA severity and tDCS-induced changes in performance. This study will combine knowledge gained from our behavioral, imaging, and network data in order to determine the relative degrees to which these properties predict whether persons with PPA will respond to intervention.
Study identification
- NCT ID
- NCT04566731
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 23 participants
Conditions and interventions
Conditions
Interventions
- Transcranial Direct Current Stimulation (tDCS) Device
- Sham tDCS Device
- Modified Contraint-Induced Language Therapy (mCILT) Behavioral
Device · Behavioral
Eligibility (public fields only)
- Age range
- 45 Years to 80 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 30, 2020
- Primary completion
- Jun 30, 2024
- Completion
- Jun 30, 2024
- Last update posted
- Nov 12, 2025
2020 – 2024
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04566731, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 12, 2025 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04566731 live on ClinicalTrials.gov.