An interventional study of Semantic Feature Analysis Treatment in Aphasia, sponsored by VA Pittsburgh Healthcare System. Active, not recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-06-26.
Sponsored by VA Pittsburgh Healthcare System · Not applicable, Interventional, and Treatment
This randomized controlled comparative effectiveness study examines manipulation of a key component of an established and efficacious treatment for naming impairments in aphasia, along with cognitive and brain correlates of treatment success. Study participants will be randomly assigned to one of two treatment conditions comparing two different versions of Semantic Feature Analysis treatment. Their performance on standardized and study-specific measures will be used to determine which version of the treatment provides superior outcomes, and measures of automatic language processing and functional brain imaging will also be used to identify the underlying neurocognitive mechanisms associated with positive treatment response.
This randomized comparative effectiveness trial examines whether active manipulation of a key component of semantic feature analysis (SFA) treatment for word-finding difficulty in aphasia improves outcomes. 40 study participants will be recruited and randomized to receive one of the two versions of the treatment. The total treatment time will be equated in the two conditions.
Study participants will be housed locally at the Pittsburgh site at no cost and will be eligible to receive reimbursement for travel expenses. During the five-week treatment phase of the study, participants will receive 60 hours of SFA treatment with pre- and post-treatment assessment of their ability to name pictures of treated and untreated, semantically related nouns. Other secondary outcomes, including measures of connected speech and patient-reported communication ability will also be collected. In order to address unresolved questions about the underlying cognitive and neural mechanisms of SFA, participants will also receive concurrent pre- and post-treatment assessment of automatic word processing ability using eye-tracking methods and functional magnetic resonance imaging (fMRI). Participants will also be asked to return to Pittsburgh for two days approximately 2-3 months later for follow-up language, eye-tracking, and fMRI testing.
The language testing results will be used to determine which version of SFA treatment optimizes outcomes. The eye-tracking results will be used to infer whether SFA's positive effects can be attributed to improved activation of lexical-semantic representations, improved ability to inhibit competing representations, or both. The fMRI results will be used to identify the brain networks and activation changes associated with changes in naming ability resulting from SFA. This study will provide theoretically and clinically relevant information about how aphasia treatment should be delivered and the neurocognitive mechanisms underlying its effects.
338 studies on the registry are indexed under Aphasia; 95 are open to participants now.
This study's planned enrollment of 40 is above the median of 30 across 298 interventional studies indexed under Aphasia.
Browse Aphasia studies →VA Pittsburgh Healthcare System is the lead sponsor of 19 studies on the registry; 3 are open to participants now.
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Exclusion Criteria:
A modified version of Semantic Feature Analysis will be administered.
Behavioral: Semantic Feature Analysis Treatment
A standard version of Semantic Feature Analysis will be administered.
Behavioral: Semantic Feature Analysis Treatment
On each treatment trial, the clinician will show the participant with aphasia a pictured object and ask them to name it. The clinician will then guide the participant in verbally generating semantic features for the target, using a chart that specifies five kinds of features: group, use/action, properties, location, and personal associations. When the participant cannot generate a given feature, cueing or other assistance will be provided. After feature generation, the clinician will ask the participant to name the picture again and provide cueing if needed. The clinician will then review the generated features and ask the participant to name the item once more, with cueing if needed. Finally, the clinician will ask the participant to say a sentence containing the target word and provide cueing if needed. Treatment will then proceed to the next item. Participants will receive approximately 20 hours of treatment on each of three 10-item lists, for a total of 60 hours of treatment.
Also known as: Semantically Oriented Naming Treatment
Confrontation Naming
Change in naming accuracy on 30 treated pictured object nouns and 30 untreated pictured object nouns semantically related to the treated items.
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Nicholas and Brookshire Picture Descriptions
Change in the number of correct information units produced during connected speech in response to the stimuli and procedures described by Nicholas and Brookshire (1993) and Brookshire \& Nicholas (1994).
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Aphasia Communication Outcome Measure (ACOM)
Change in ACOM T-scores derived from the scoring model described by Hula and colleagues (2015). Higher scores on this scale indicate better self-reported communicative functioning. The scale was constructed such that the average score is 50 and the standard deviation is 10 points. The minimum possible score is 15 and the maximum possible score is 85.
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Visual World Paradigm
Change in the mean proportions of fixations to the target and to the related competitor (compared to unrelated distractor images), averaged across trials.
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Functional MRI
Changes in task-related blood oxygen level dependent (BOLD) activation, and task-related and resting state functional connectivity
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Comprehensive Aphasia Test
Change in the Modality Mean T-Score computed from the following six modality subtests: Spoken Language Comprehension, Written Language Comprehension, Repetition, Naming, Reading, and Writing.
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Philadelphia Naming Test (PNT)
Change in PNT score estimates derived from the item response theory model described by Fergadiotis, Kellough, \& Hula (2015). Scores will be scaled such that the expected average score among persons with aphasia is 50 and the standard deviation is 10, with minimum and maximum possible scores of approximately 20 and 80, respectively. Higher scores indicate better outcomes.
Time frame: (1) 1 week prior to intervention; (2) immediately prior to intervention; (3) 1-2 days post intervention (4) 8 to 12 weeks post intervention
Plan to share: No
Started Feb 2020 (actual). Primary completion is estimated for Aug 2025, 66 months after the start.
Of 183 non-industry interventional studies with no phase under Aphasia, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 57. This study's planned 66 months is above that.
Counting every sponsor, half of 185 studies reached it within 36 months; a quarter within 20 and three quarters within 57.
How these figures are worked out, and which studies are left out of them.
This study is active, not recruiting, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.
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VA Pittsburgh Healthcare System