- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03320954
Language Assessment and Treatment Following Acquired Brain Injury
Study Overview
Detailed Description
Phase I: Phase I participants will engage in two sets of activities: (a) standardized and informal language and cognitive measures and (b) a series of language and cognitive activities performed during the collection of event related potential (ERP) recordings. Standardized language measures will include the: (a) Test of Adolescent/Adult Word Retrieval, (b) Cognitive Linguistic Quick Test, and (c) California Verbal Learning Test. Informal measures will include a conversational interaction about a participant's language difficulties and a topic of his/her choosing. During the conversational interaction, participants will press a button each time they experience difficulty retrieving a word.
ERPs measure electrical signals from the brain using a soft net of woven electrodes placed on a participant's head. Before the session, the investigators will soak a net in a saline (salt water) solution. The recording electrodes will be placed on the participant's scalp. The investigators will record ERPs while the participant completes the following tasks:
- word retrieval: The participant will view a series of neutral stimuli (i.e., pictures of familiar objects, people, or locations flashed briefly on a computer monitor). The participant will press one of three buttons to indicate (a) recall of the name of the depicted image, (b) knowledge of the name but inability to recall it, or (c) no knowledge of the name of the depicted image. If a participant does not press a button within the time limit of the stimulus presentation, a new stimulus trial will begin. During some trials, participants will perform a second task requiring judgment about the orientation of lines appearing after the stimulus image. Following completion of all trials, the investigators will present the stimulus images a second time along with three response options: (a) the correct name, (b) an incorrect name, and (c) "don't know." The participant will again use a button press to indicate his/her response choice.
- stimulus categorization: The participant will view a series of objects. For each object, he/she will categorize the stimulus semantically (e.g., Is the object a fruit or animal?) or phonologically (e.g., Does the object start with the letter "L" or "N?"). Participants will respond by pushing a button.
- deductive reasoning: The participant will view written word pairs. Some of the pairs will relate to a specific word (e.g., "desert" and "humps" relate to "camel"), whereas other pairs will not (e.g., "desert" and "bark"). The participant will press one of two buttons to indicate whether a word pair triggers or does not trigger recall of a related word.
Phase II: Only people with acquired brain injury (ABI) will participate in Phase II activities. Phase II participants will attend two-hour, group intervention sessions one day per week for eight weeks. Participants will engage in multiple word game activities throughout each intervention session. Games will include Facts in Five, Anomia, Boggle, and Bananagrams as well as variations on these, as appropriate. Data collection during these sessions will be limited to a list of activities in which a participant engaged and the duration of engagement in each activity. Game-based group activities such as these are not typically used in intervention sessions for people with ABI who experience mild word-retrieval challenges. In fact, because of the subtlety of word retrieval difficulties experienced by people with relatively good recoveries from ABI--that is, the target population for this research--most people do not receive any treatment for this problem.
Phase III: Only people with ABI who have performed both Phase I and Phase II activities will be eligible for participation in Phase III. Following completion of the intervention sessions, participants will perform post-testing activities. Post-testing activities will include a subset of Phase I testing activities. Specifically, we will repeat (a) the audio recording of a conversational interaction and (b) the ERP recording with the same tasks used in Phase I.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Nebraska
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Lincoln, Nebraska, United States, 68588
- University of Nebraska Lincoln
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adults with acquired brain injury (ABI):
- Have sustained a mild, moderate, or severe ABI
- Have concerns about language-related challenges following ABI
- Adults without ABI
- Have no history of ABI, other neurological impairment, or learning challenges
- Match a participant with ABI on age, gender, and education
Exclusion Criteria:
- Do not speak English as a primary language
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Anomia treatment
Phase 2 portion of the research during which participants with acquired brain injury will perform intervention activities.
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Phase II participants will attend two-hour, group intervention sessions one day per week for eight weeks.
Participants will engage in multiple word game activities throughout each intervention session.
Games will include Facts in Five, Anomia, Boggle, and Bananagrams as well as variations on these, as appropriate.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in amplitude of N400 event related potential (ERP) as measured in microvolts.
Time Frame: The second day of participant enrollment and 10 weeks later on the last day of participant enrollment
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ERP recordings will be taken while a participant performs naming tasks.
The average amplitude of N400 will be measured in microvolts across trials.
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The second day of participant enrollment and 10 weeks later on the last day of participant enrollment
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Total raw score on Test of Adolescent/Adult Word Retrieval
Time Frame: First day of participant enrollment
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A participant will perform the Test of Adolescent/Adult Word Retrieval.
Scoring will be done in accordance with the standardized procedures outlined in the manual.
Possible scores range from 0-107, with higher scores indicating better performance than lower scores.
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First day of participant enrollment
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Executive Functions Domain score on the Cognitive Linguistic Quick Test
Time Frame: First day of participant enrollment
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A participant will perform the Cognitive Linguistic Quick Test.
Scoring will be done in accordance with the standardized procedures outlined in the manual.
Executive Functions Domain scores are the sum of the scores obtained on the Symbol Trails task (range: 0-10), the Generative Naming task (range: 0-9), the Mazes task (range: 0-8), and the Design Generation task (range: 0-13).
Possible Executive Function Domain scores range from 0 to 40, with higher scores indicating better performance than lower scores.
Scores from 0-15 correspond with a severity rating of 1; scores from 16-19 correspond with a severity rating of 2; scores from 20-23 correspond with a severity rating of 3; and scores from 24-40 correspond with a severity rating of 4 and performance within normal limits.
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First day of participant enrollment
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Visuospatial Domain score on the Cognitive Linguistic Quick Test
Time Frame: First day of participant enrollment
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A participant will perform the Cognitive Linguistic Quick Test.
Scoring will be done in accordance with the standardized procedures outlined in the manual.
Visuospatial Domain scores are the sum of the scores obtained on the Symbol Cancellation task (range: 0-12) times 2, the Symbol Trails task (range: 0-10) times 2, the Design Memory task (range: 0-6) times 4, the Mazes task (range: 0-8) times 3, and the Design Generation task (range: 0-13) times 1.
Possible Visuospatial Domain scores range from 0 to 105, with higher scores indicating better performance than lower scores.
Scores from 0-41 correspond with a severity rating of 1; scores from 42-51 correspond with a severity rating of 2; scores from 52-81 correspond with a severity rating of 3; and scores from 82-105 correspond with a severity rating of 4 and performance within normal limits.
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First day of participant enrollment
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Trials 1-5 Free Recall Total Correct on the California Verbal Learning Test - II
Time Frame: First day of participant enrollment
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A participant will perform the California Verbal Learning Test.
Scoring will be done in accordance with the standardized procedures outlined in the manual.
Raw scores range from 0 to 100.
Higher total correct scores indicate better performance than lower total correct scores.
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First day of participant enrollment
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Change in number of self-reported instances of word retrieval difficulty
Time Frame: The second day of participant enrollment and 10 weeks later on the last day of participant enrollment
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A participant will engage in a conversational interaction with the researcher.
The participant will press a button each time he/she experiences difficulty retrieving a word.
The number of instances of self-reported word retrieval difficulty will be tallied.
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The second day of participant enrollment and 10 weeks later on the last day of participant enrollment
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Amplitude of N400 event related potential (ERP) as measured in microvolts.
Time Frame: First day of participant enrollment
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ERP recordings will be taken while a participant performs naming tasks.
The average amplitude of N400 will be measured in microvolts across trials.
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First day of participant enrollment
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Time spent performing specific intervention activities
Time Frame: Weeks two through nine of participant enrollment
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The investigators will measure the amount of time each participant chooses to spend engaging in specific game activities during the Phase II intervention sessions.
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Weeks two through nine of participant enrollment
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Karen A Hux, PhD, University of Nebraska Lincoln
- Principal Investigator: Kathy Chiou, PhD, University of Nebraska Lincoln
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 17512
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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