Analysis of Brain Activity to Uncover Brain-behavior Relationships Related to Therapy Outcomes in Aphasia

• ClinicalTrials.gov Identifier: NCT03550092
• Recruitment Status: Active, not recruiting
• First Posted: June 8, 2018
• Last Update Posted: January 10, 2023
• Sponsor: Penn State University
• Information provided by (Responsible Party): Chaleece Sandberg, Penn State University

Study Description

Brief Summary:

Aphasia is a loss of language due to stroke or other brain injury. Word-finding in conversation is a universal and persistent difficulty in aphasia. While several techniques exist to improve word-finding in aphasia, it is unclear how the brain changes in response to behavioral therapy. In this study, persons with aphasia will receive behavioral therapy aimed at helping them to be more successful at finding words. Twenty therapy sessions will be provided in a 10-week period. Each therapy session will last about 2 hours and will include a variety of language tasks. Prior to beginning word-finding therapy, each participant will receive two fMRI scans, spaced 10 weeks apart. After finishing therapy, each participant will receive two additional fMRI scans, spaced 10 weeks apart. For a portion of the MRI scan, participants will complete language tasks. The purpose of these fMRI scans is to measure brain changes that may occur due to successful behavioral therapy. The hypotheses are as follows: First, that the behavioral therapy will improve word-finding as it has been shown to do in the past. Second, that the brain will change in a couple of different ways. It is expected that the network of regions that support word-finding will be more connected and work together more efficiently after therapy. It is also expected that the networks of regions that support other aspects of cognitive function, such as attention and executive function, will also be more connected and work together more efficiently.

Condition or disease	Intervention/treatment	Phase
Aphasia	Behavioral: Abstract Semantic Association Network Training (AbSANT)	Not Applicable

Study Design

• Study Type: Interventional (Clinical Trial)
• Actual Enrollment: 19 participants
• Allocation: N/A
• Intervention Model: Single Group Assignment
• Masking: None (Open Label)
• Primary Purpose: Other
• Official Title: Application of Graph Theory to Both Resting-state and Task-based fMRI Data to Uncover Brain-behavior Relationships Related to Therapy Outcomes in Aphasia
• Actual Study Start Date: September 25, 2018
• Estimated Primary Completion Date: May 2023
• Estimated Study Completion Date: June 2023

Arms and Interventions

Arm	Intervention/treatment
Experimental: Aphasia; Abstract Semantic Association Network Training (AbSANT) Each session will be 2 hours long and will occur twice each week for a total of 20 sessions.	Behavioral: Abstract Semantic Association Network Training (AbSANT); In each session, the participant will be asked to categorize words, choose/discuss semantic features for each word that accurately describe the word, and generate as many words as possible within a category.; Other Names: Semantic word-finding therapy; Semantic Feature Analysis/Verification

Outcome Measures

Primary Outcome Measures :

1. Therapy Effect Size: Change in word generation performance from pre- to post-treatment measured using a version of Cohen's d [ Time Frame: At baseline and at approximately 10 weeks (i.e., the end of therapy) ]
   The mean of the baseline scores is subtracted from the mean of the post-treatment scores, and then divided by the standard deviation (SD) of the baseline scores. 6.5-8 is considered a small effect size, 8-9.5 is medium, and above 9.5 is large.
2. Change in fMRI activation patters from pre- to post-treatment [ Time Frame: At baseline and at approximately 10 weeks (i.e., the end of therapy) ]
   Blood-oxygen-level-dependent MRI signal measured during task and rest and subjected to statistical tests of significant change from pre- to post-treatment.

Eligibility Criteria

• Ages Eligible for Study: Child, Adult, Older Adult
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Criteria

Inclusion Criteria:

1. Diagnosis of aphasia
2. Sustained stroke more than 6 months prior to consent
3. Right-handed
4. Native speakers of English
5. Completed at least a high school education
6. Normal or corrected-to-normal vision and hearing
7. Provide written informed consent
8. Participants will be medically stable and at least wheelchair ambulatory at the time of participation with uncompromised use of the left hand

Exclusion Criteria:

1. History of degenerative neurological disorders (e.g., Alzheimer's disease), acquired neurological disorders other than aphasia from stroke (e.g., traumatic brain injury), developmental neurological disorders (e.g., autism), or psychiatric disorders
2. An active medical condition that could compromise participation (e.g., cancer undergoing acute treatment)
3. Not safe to enter the bore of the magnet (e.g., pacemaker)
4. Taking medications that are known to exert significant effects on cognitive processes
5. Pregnancy or possibility of pregnancy
6. Do not meet the above inclusionary criteria

Contacts and Locations

Locations

United States, Pennsylvania

Hershey Medical Campus

Hershey, Pennsylvania, United States, 17033

Sponsors and Collaborators

Penn State University

Investigators

• Principal Investigator: Chaleece W Sandberg, Ph.D.; The Pennsylvania State University

More Information

• Responsible Party: Chaleece Sandberg, Assistant Professor, Penn State University
• ClinicalTrials.gov Identifier: NCT03550092
• Other Study ID Numbers: 1R21DC016708-01A1 ( U.S. NIH Grant/Contract )
• First Posted: June 8, 2018
• Last Update Posted: January 10, 2023
• Last Verified: January 2023

• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Chaleece Sandberg, Penn State University:

aphasia; treatment; therapy; anomia; fMRI; neuroimaging; semantics

Additional relevant MeSH terms:

Aphasia; Speech Disorders; Language Disorders; Communication Disorders; Neurobehavioral Manifestations; Neurologic Manifestations; Nervous System Diseases