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Speech Entrainment for Aphasia Recovery

Speech Entrainment for Aphasia Recovery

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04364854
Acronym
SpARc
Enrollment
80
Registered
2020-04-28
Start date
2020-08-21
Completion date
2025-08-31
Last updated
2025-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Aphasia, Aphasia Non Fluent, Stroke

Keywords

Aphasia, Speech Language Pathology, Therapy

Brief summary

After a stroke, many people experience a language impairment called aphasia. One of the most debilitating types of aphasia is non-fluent aphasia. Non-fluent aphasia is defined by significantly reduced speech production, with the speaker producing only a few words or even less. Speech entrainment therapy (SET) is a treatment that has been shown to increase fluency in people with non-fluent aphasia. The study looks to define the best dose of SET that leads to sustained improvements in spontaneous speech production. Participants who are eligible will undergo baseline language testing, an MRI, and will be randomized into one of 4 treatment groups: SET for 3 weeks, SET for 4.5 weeks, SET for 6 weeks, and no treatment (control group).

Interventions

BEHAVIORALSET (Speech Entrainment Therapy) 3 weeks

3 weeks of SET which consists of practicing fluent speech in real time with an audio-visual computer program

BEHAVIORALSET (Speech Entrainment Therapy) 4.5 weeks

4.5 weeks of SET which consists of practicing fluent speech in real time with an audio-visual computer program

BEHAVIORALSET (Speech Entrainment Therapy) 6 weeks

6 weeks of SET which consists of practicing fluent speech in real time with an audio-visual computer program

OTHERNo Therapy 6 Weeks

Participants will not be getting any SET for 6 weeks

Sponsors

Medical University of South Carolina
Lead SponsorOTHER
National Institute on Deafness and Other Communication Disorders (NIDCD)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
21 Years to 81 Years
Healthy volunteers
No

Inclusion criteria

* Aphasia as a result of a left hemisphere ischemic or hemorrhagic stroke (WAB-R Aphasia Quotient \<93.8). * Presence of left hemisphere stroke in clinical imaging (CT/MRI) and NIHSS * Participants must have spoken English as their primary language. * 21-81 years old * Pre-stroke modified Rankin Scale (mRS)= 2 or less * Post-stroke mRS= 4 or less. * At least 6 months post-stroke. * Non-fluent aphasia (WAB-R Comprehension score \>4 and WAB-R Fluency score \<6). * Technological compatibility (to be determined by clinical judgment of SLP)

Exclusion criteria

* History of chronic neurological or psychiatric diseases (excluding migraines, depression, or post-stroke epilepsy). Self-reported history of learning disability. * Severe dysarthria (determined via SLP clinical judgment from spontaneous speech tasks on the ASRS 3.0). * Global aphasia. * History of right-hemisphere strokes or brain stem/cerebellar strokes with persistent deficits (as evidenced by MRI/CT and NIHSS). * Uncorrectable hearing as determined by the SLP's clinical judgment. * Uncorrectable vision. * Contraindications to MRI or inability to complete the MRI scanning session. * Women who are pregnant.

Design outcomes

Primary

MeasureTime frameDescription
Average Verbs Per Minute (VPM) Change From Baseline3 months after treatment (or no treatment)VPM will be assessed through procedural storytelling and narrative storytelling tasks - with four items in each category. The procedural storytelling items are: 1) how to make a peanut butter and jelly sandwich, 2) how to make scrambled eggs, 3) how to brew coffee, and 4) how to wash dishes. The narrative items will be: 1) Cinderella story, 2) Little Red Riding Hood, 3) The Three Little Pigs, and 4) Goldilocks. VPM is averaged between the procedural storytelling and narrative storytelling tasks.

Secondary

MeasureTime frameDescription
Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39) Change From Baseline3 months after treatment (or no treatment)Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39) is a health-related quality of life measure that evaluates a participant's physical, psychosocial, and communication functioning. The final score is a decimal number between 0 and 5 with 5 indicating the best quality of life.
Narrative Verbs Per Minute (VPM)3 months after treatment (or no treatment)VPM will be assessed through narrative storytelling tasks - with four different stories. The narrative stories will be: 1) Cinderella story, 2) Little Red Riding Hood, 3) The Three Little Pigs, and 4) Goldilocks.
Procedural Verbs Per Minute (VPM) Change From Baseline3 months after treatment (or no treatment)Verbs per minute (VPM) will be assessed through procedural storytelling - with four different stories. The procedural storytelling items are: 1) how to make a peanut butter and jelly sandwich, 2) how to make scrambled eggs, 3) how to brew coffee, and 4) how to wash dishes.

Countries

United States

Participant flow

Participants by arm

ArmCount
SET (Speech Entrainment Therapy) 3 Weeks
SET (Speech Entrainment Therapy) 3 weeks: 3 weeks of SET which consists of practicing fluent speech in real time with an audio-visual computer program
20
SET (Speech Entrainment Therapy) 4.5 Weeks
SET (Speech Entrainment Therapy) 4.5 weeks: 4.5 weeks of SET which consists of practicing fluent speech in real time with an audio-visual computer program
20
SET (Speech Entrainment Therapy) 6 Weeks
SET (Speech Entrainment Therapy) 6 weeks: 6 weeks of SET which consists of practicing fluent speech in real time with an audio-visual computer program
20
No Therapy 6 Weeks
No Therapy 6 Weeks: Participants will not be getting any SET for 6 weeks
20
Total80

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyDeath1000
Overall StudyLost to Follow-up0001
Overall StudyWithdrawal by Subject1013

Baseline characteristics

CharacteristicTotalSET (Speech Entrainment Therapy) 3 WeeksNo Therapy 6 WeeksSET (Speech Entrainment Therapy) 6 WeeksSET (Speech Entrainment Therapy) 4.5 Weeks
Age, Continuous58 years
STANDARD_DEVIATION 13.2
60.8 years
STANDARD_DEVIATION 11.6
57.4 years
STANDARD_DEVIATION 14.1
56.8 years
STANDARD_DEVIATION 15
56.8 years
STANDARD_DEVIATION 12.1
ASRS19 score on a scale20 score on a scale17 score on a scale23 score on a scale18.5 score on a scale
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
76 Participants18 Participants19 Participants19 Participants20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants2 Participants1 Participants1 Participants0 Participants
LOFT Score45.5 score on a scale43.5 score on a scale49 score on a scale45 score on a scale44 score on a scale
Modified - PNT Score32.5 score on a scale18 score on a scale27 score on a scale25 score on a scale47 score on a scale
Modified - PRT Score102 score on a scale92.5 score on a scale97.5 score on a scale94.5 score on a scale133 score on a scale
Post-Stroke Fatigue Score2 score on a scale2 score on a scale4 score on a scale3 score on a scale2 score on a scale
Pyramids and Palm Trees Test Score45.5 score on a scale45.5 score on a scale47 score on a scale44 score on a scale45.5 score on a scale
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
12 Participants2 Participants4 Participants3 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
66 Participants18 Participants16 Participants16 Participants16 Participants
RHHI-S Score0 score on a scale0 score on a scale0 score on a scale0 score on a scale0 score on a scale
SADQ Score10 score on a scale10.5 score on a scale10 score on a scale9 score on a scale11 score on a scale
Sex: Female, Male
Female
25 Participants7 Participants8 Participants3 Participants7 Participants
Sex: Female, Male
Male
55 Participants13 Participants12 Participants17 Participants13 Participants
Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39)3.44 score on a scale
STANDARD_DEVIATION 0.72
3.61 score on a scale
STANDARD_DEVIATION 0.67
3.43 score on a scale
STANDARD_DEVIATION 0.83
3.12 score on a scale
STANDARD_DEVIATION 0.67
3.59 score on a scale
STANDARD_DEVIATION 0.63
Stroke Onset Age53.5 years
STANDARD_DEVIATION 13.8
55.1 years
STANDARD_DEVIATION 13.4
55.1 years
STANDARD_DEVIATION 15.4
52.6 years
STANDARD_DEVIATION 13.3
51.6 years
STANDARD_DEVIATION 14
VPM - Average6.1 verbs per minute
STANDARD_DEVIATION 6.4
7.3 verbs per minute
STANDARD_DEVIATION 5.8
4.8 verbs per minute
STANDARD_DEVIATION 3.6
3.8 verbs per minute
STANDARD_DEVIATION 3.1
8.5 verbs per minute
STANDARD_DEVIATION 9.7
VPM - Narrative6.2 verbs per minute
STANDARD_DEVIATION 7.8
8.7 verbs per minute
STANDARD_DEVIATION 7.7
3.8 verbs per minute
STANDARD_DEVIATION 3.7
3.1 verbs per minute
STANDARD_DEVIATION 3.4
9.1 verbs per minute
STANDARD_DEVIATION 11.5
VPM - Procedural6.1 verbs per minute
STANDARD_DEVIATION 6.3
5.8 verbs per minute
STANDARD_DEVIATION 5.2
5.7 verbs per minute
STANDARD_DEVIATION 5.3
4.7 verbs per minute
STANDARD_DEVIATION 5.2
8.2 verbs per minute
STANDARD_DEVIATION 8.6
WAB-R47.8 score on a scale43.5 score on a scale53.9 score on a scale46.3 score on a scale49.4 score on a scale
WAIS III Matrix Reasoning Raw Score12 score on a scale8 score on a scale13 score on a scale11.5 score on a scale12.5 score on a scale

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
1 / 200 / 200 / 200 / 20
other
Total, other adverse events
0 / 200 / 201 / 200 / 20
serious
Total, serious adverse events
2 / 202 / 202 / 200 / 20

Outcome results

Primary

Average Verbs Per Minute (VPM) Change From Baseline

VPM will be assessed through procedural storytelling and narrative storytelling tasks - with four items in each category. The procedural storytelling items are: 1) how to make a peanut butter and jelly sandwich, 2) how to make scrambled eggs, 3) how to brew coffee, and 4) how to wash dishes. The narrative items will be: 1) Cinderella story, 2) Little Red Riding Hood, 3) The Three Little Pigs, and 4) Goldilocks. VPM is averaged between the procedural storytelling and narrative storytelling tasks.

Time frame: 3 months after treatment (or no treatment)

Population: Participants with available data.

ArmMeasureValue (LEAST_SQUARES_MEAN)
SET (Speech Entrainment Therapy) 3 weeksAverage Verbs Per Minute (VPM) Change From Baseline0.3 verbs per minute
SET (Speech Entrainment Therapy) 4.5 weeksAverage Verbs Per Minute (VPM) Change From Baseline0.62 verbs per minute
SET (Speech Entrainment Therapy) 6 weeksAverage Verbs Per Minute (VPM) Change From Baseline-0.26 verbs per minute
No Therapy 6 weeksAverage Verbs Per Minute (VPM) Change From Baseline0.52 verbs per minute
95% CI: [-2.31, 1.87]
95% CI: [-2.94, 3.15]
95% CI: [-2.9, 1.33]
Secondary

Narrative Verbs Per Minute (VPM)

VPM will be assessed through narrative storytelling tasks - with four different stories. The narrative stories will be: 1) Cinderella story, 2) Little Red Riding Hood, 3) The Three Little Pigs, and 4) Goldilocks.

Time frame: 3 months after treatment (or no treatment)

Population: Participants that have available data and did not withdraw consent prior to completing the study.

ArmMeasureValue (LEAST_SQUARES_MEAN)
SET (Speech Entrainment Therapy) 3 weeksNarrative Verbs Per Minute (VPM)0.25 verbs per minute
SET (Speech Entrainment Therapy) 4.5 weeksNarrative Verbs Per Minute (VPM)0.89 verbs per minute
SET (Speech Entrainment Therapy) 6 weeksNarrative Verbs Per Minute (VPM)0.35 verbs per minute
No Therapy 6 weeksNarrative Verbs Per Minute (VPM)0.1 verbs per minute
95% CI: [-2.59, 2.9]
95% CI: [-2.23, 3.8]
95% CI: [-2.32, 2.82]
Secondary

Procedural Verbs Per Minute (VPM) Change From Baseline

Verbs per minute (VPM) will be assessed through procedural storytelling - with four different stories. The procedural storytelling items are: 1) how to make a peanut butter and jelly sandwich, 2) how to make scrambled eggs, 3) how to brew coffee, and 4) how to wash dishes.

Time frame: 3 months after treatment (or no treatment)

Population: Participants that have available data and did not withdraw consent prior to completing the study.

ArmMeasureValue (LEAST_SQUARES_MEAN)
SET (Speech Entrainment Therapy) 3 weeksProcedural Verbs Per Minute (VPM) Change From Baseline0.77 verbs per minute
SET (Speech Entrainment Therapy) 4.5 weeksProcedural Verbs Per Minute (VPM) Change From Baseline1.1 verbs per minute
SET (Speech Entrainment Therapy) 6 weeksProcedural Verbs Per Minute (VPM) Change From Baseline-1.27 verbs per minute
No Therapy 6 weeksProcedural Verbs Per Minute (VPM) Change From Baseline0.84 verbs per minute
95% CI: [-3.59, 3.45]
95% CI: [-4.27, 4.8]
95% CI: [-5.77, 1.56]
Secondary

Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39) Change From Baseline

Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39) is a health-related quality of life measure that evaluates a participant's physical, psychosocial, and communication functioning. The final score is a decimal number between 0 and 5 with 5 indicating the best quality of life.

Time frame: 3 months after treatment (or no treatment)

Population: Participants that have available data and did not withdraw consent prior to completing the study.

ArmMeasureValue (LEAST_SQUARES_MEAN)
SET (Speech Entrainment Therapy) 3 weeksStroke and Aphasia Quality of Life Scale-39 (SAQOL-39) Change From Baseline0 score on a scale
SET (Speech Entrainment Therapy) 4.5 weeksStroke and Aphasia Quality of Life Scale-39 (SAQOL-39) Change From Baseline0.1 score on a scale
SET (Speech Entrainment Therapy) 6 weeksStroke and Aphasia Quality of Life Scale-39 (SAQOL-39) Change From Baseline-0.16 score on a scale
No Therapy 6 weeksStroke and Aphasia Quality of Life Scale-39 (SAQOL-39) Change From Baseline0.06 score on a scale
95% CI: [-0.26, 0.13]
95% CI: [-0.21, 0.28]
95% CI: [-0.42, -0.04]

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026