Melodic-Intonation-Therapy and Speech-Repetition-Therapy for Patients With Non-fluent Aphasia

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-02-29

Study Completion Date

2020-06-30

Brief Summary

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We are doing this clinical trial in order to evaluate two different treatments for non-fluent aphasia: Melodic Intonation Therapy (MIT) and Speech Repetition Therapy (SRT). MIT uses a simple form of singing, while SRT uses intensive repetition of a set of words and phrases. We want to see which intensive form of treatment is more effective in leading to an improvement in speech output compared to a no-therapy control period, and whether either treatment can cause changes in brain activity during speaking and changes in brain structure. We will use a technique known as functional Magnetic Resonance Imaging (fMRI) to measure blood flow changes in the brain and structural MRI that assess brain anatomy and connections between brain regions. We will use fMRI to assess brain activity while a patient speaks, sings, and hums. We will assess changes in brain activity and in brain structure by comparing scans done prior to treatment to scans obtained after treatment and we will also examine changes between treatment groups. We will correlate changes in brain activity and brain structure with changes in language test scores.

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Detailed Description

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One of the few accepted treatments for severe non-fluent aphasia is Melodic Intonation Therapy (MIT). Inspired by the common clinical observation that patients can actually sing the lyrics of a song better than they can speak the same words, MIT emphasizes the prosody of speech through the use of slow, pitched vocalization (singing), and has been shown to lead to significant improvements in propositional speech beyond the actual treatment period. It has been hypothesized that this effect is due to the gradual recruitment of right-hemispheric language regions for normal speech production, and this is further supported by our functional magnetic resonance imaging (fMRI) pilot data. Although the MIT-induced treatment effect has been shown in several small case series, it is not clear whether the effect is due to the intensity of the treatment or to the unique, components of MIT that are not found in other, non-intonation-based interventions. Thus, our overall aim is to test our hypothesis that MIT's rehabilitative effect is achieved by using its melodic and rhythmic elements to engage and/or unmask the predominantly right-hemispheric brain regions capable of supporting expressive language function. In order to test this hypothesis, we have developed an experimental design that includes the randomization of chronic stroke patients with persistent, moderate to severe non-fluent aphasia into three parallel groups receiving 1) 75 sessions of Melodic Intonation Therapy (approximately 15 weeks), 2) 75 sessions of an equally intensive, alternative verbal treatment method developed for this study (Speech Repetition Therapy), or 3) an equal period of No Therapy. All patients will undergo two pre-therapy and two post-therapy behavioral assessments in addition to the pre- and post-therapy fMRI studies and structural MRI studies examining the neural correlates of overtly spoken and sung words and phrases.This design allows us to 1) examine the efficacy of MIT over No Therapy, 2) examine the effects of elements specific to MIT (e.g., melodic intonation and rhythmic tapping) by comparing it to a control intervention (SRT) that is similar in structure and intensity of treatment, 3) compare post-therapy effects with pre-therapy baseline variations, and 4) examine post-treatment maintenance effects. Our primary speech outcome measure will be the number of Correct Information Units (CIU)/min produced during spontaneous speech. Secondary outcome measures include correctly named items on standard picture naming tests, timed automatic speech, and linguistically-based measures of phrase and sentence analysis.

Conditions

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Aphasia Stroke Cerebrovascular Accident Apoplexy Cerebral Infarction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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MIT

Melodic Intonation Therapy

Group Type EXPERIMENTAL

Melodic Intonation Therapy

Intervention Type BEHAVIORAL

MIT emphasizes the prosody of speech through the use of slow, pitched vocalization (singing).

SRT

Speech-Repetition-Therapy

Group Type ACTIVE_COMPARATOR

Speech-Repetition-Therapy

Intervention Type BEHAVIORAL

Speech-Reception-Therapy is an equally intensive, alternative verbal treatment method developed for this study.

NTC

No-Therapy Control; Patients in this arm will be re-randomized to the two active arms at the end of the NTC period.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Melodic Intonation Therapy

MIT emphasizes the prosody of speech through the use of slow, pitched vocalization (singing).

Intervention Type BEHAVIORAL

Speech-Repetition-Therapy

Speech-Reception-Therapy is an equally intensive, alternative verbal treatment method developed for this study.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

1. 21-80 years of age
2. first-time ischemic left-hemispheric stroke or cerebrovascular accident
3. at least 12 months out from first ischemic stroke
4. right-handed (prior to stroke)
5. diagnosis of non-fluent or dysfluent aphasia

Exclusion Criteria

1. older than 80 years of age
2. more than 1 stroke
3. presence of metal or metallic or electronic devices that cannot be exposed to the MRI environment
4. a terminal medical condition; history of major neurological or psychiatric diseases (e.g. epilepsy; meningitis, encephalitis)
5. use of psychoactive drugs/medications such as antidepressants, antipsychotic, stimulants
6. active participation in other stroke recovery trials testing experimental interventions

Minimum Eligible Age

21 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No