Neurobiology of Language Recovery in Aphasia: Natural History and Treatment-Induced Recovery

Not Applicable

Completed

• Conditions: Agrammatism; Aphasia; Dysgraphia; Anomia; Stroke

• Registration Number: NCT01927302
• Lead Sponsor: Northwestern University

Brief Summary

The purpose of this study is to investigate the effects of treatment for specific language deficits in people with aphasia. In addition to language and cognitive measures, changes in brain function will also be gathered before and after the treatment is administered in order to track any changes resulting from receiving treatment.

Detailed Description

Naming Impairments (Anomia):

The labs of Dr. Swathi Kiran (Boston University) and Dr. David Caplan (Harvard University, Massachusetts General Hospital) will be studying language recovery in adults with anomia (naming impairments) following a stroke. Participants will receive treatment focusing on the semantic features of common objects (e.g., that birds can fly). The study will examine how naming and other language abilities change in response to treatment, as well as how the brain changes, as measured by magnetic resonance imaging (MRI) and other techniques.

Spelling/Writing Impairments (Dysgraphia):

At Johns Hopkins University, the lab of Dr. Brenda Rapp will investigate the neurobiology of language recovery in individuals with dysgraphia (spelling/writing impairments) resulting from a stroke. In this study, treatment will focus on improving spelling ability. The study will examine how spelling and other language abilities change in response to treatment, as well as how the brain changes, as measured by magnetic resonance imaging (MRI) and other techniques.

Deficits in Sentence Comprehension \& Production:

Dr. Cynthia Thompson's lab at Northwestern University will investigate language recovery in individuals with deficits in sentence production and comprehension. Treatment focuses on production and comprehension of complex sentences. At baseline (week 0) and after the treatment period (at week 12), participants take part in language, eye-tracking, and MRI testing, in order to learn how the processing of language, as well as brain function, changes as a result of treatment.

Study Timeline

• Study Start: 2013-04
• Study First Submitted: 2013-07-29
• Study First Submitted QC: 2013-08-19
• Study First Posted: 2013-08-22
• Primary Completion: 2019-03-27
• Study Completion: 2019-03-27
• Status Verified: 2021-08
• Last Update Submitted: 2021-08-09
• Last Update Posted: 2021-08-11

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 90

Inclusion Criteria

• Aphasia following a stroke
• Stoke was at least 1 year ago
• Medically stable
• Right-handed
• Normal or 'corrected to normal' vision and hearing
• English as primary language
• At least a high school education

Exclusion Criteria

• History of neurological disease, head trauma, psychiatric disorders, alcoholism, or developmental speech, language, or learning disabilities

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Change in language and cognitive abilities as a result of treatment	week 0 to week 12	Standard and non-standard measures of language and cognitive abilities will be gathered at baseline (week 0) to see if language deficits improve after treatment is administered (week 12).

Secondary Outcome Measures

Name	Time	Method
Composite change in brain function as a result of treatment	week 0 to week 12	Neural correlates of treatment effects will be examined using: * Functional Magnetic Resonance Imaging (fMRI); * Diffusion Tensor Imaging (DTI); * Perfusion Imaging; * Functional Connectivity; * Rest state Connectivity
Maintenance of composite changes in brain function as a result of treatment	week 12 to week 24	Neural correlates of treatment effects that are maintained for 12 weeks after treatment ends (week 12 to week 24) will be examined using: * Functional Magnetic Resonance Imaging (fMRI); * Diffusion Tensor Imaging (DTI); * Perfusion Imaging; * Functional Connectivity; * Rest state Connectivity
Maintenance of language and cognitive abilities as a result of treatment	week 12 to week 24	Standard and non-standard measures of language and cognitive abilities administered at week 12 will be compared to those administered at week 24 to see if improvement in language abilities as a result of treatment is maintained.

Trial Locations

Locations (4)

Northwestern University; 🇺🇸 Chicago, Illinois, United States

Johns Hopkins University; 🇺🇸 Baltimore, Maryland, United States

Boston University; 🇺🇸 Boston, Massachusetts, United States

Harvard University; 🇺🇸 Cambridge, Massachusetts, United States