AzTrials
AzTrials

AphasiaNCT00467103

Neural Networks and Language Recovery in Aphasia From Stroke: fMRI Studies

An observational study of Aphasia and Nonfluent Aphasia, run by VA Office of Research and Development at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The purpose of this research is to utilize functional magnetic resonance imaging (fMRI) to investigate brain reorganization for language behavior in stroke patients with aphasia. A primary focus of the study is on recovery of nonfluent propositional speech and naming in chronic aphasia patients. Read more about this study

Who is it for?
Ages 45 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Aphasia, Nonfluent Aphasia, Stroke
How many people
62 participants
Where
1 siteUnited States
Study dates
1 Oct 1999to 31 Dec 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 45 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Chronic stroke patients with nonfluent aphasia

Who may be able to join

  • Aphasia patients with a single, unilateral, left hemisphere stroke.
  • Patients must be native speakers of English
  • Patients must be at least 6 months poststroke and produce mild-severe nonfluent speech. Minimum Language requirements: 2-4 word phrase length on elicited propositional speech
  • Auditory Comprehension a the 25th percentile or higher on the BDAE subtests for Word Comprehension and Commands, sufficient to cooperate during testing
  • The ability to name a minimum of 3 items on the Boston Naming Test at entry into study.
  • Patients must understand the nature of the study and give informed consent.
  • Normal right-handed controls with no history of neurological disease or substance abuse; age, education and gender-matched to the Aphasia cases.

Who cannot join

  • Patients with more than one stroke in the left hemisphere or patients with bilateral strokes.
  • Each participant must be able to have an MRI scan.
  • MRI is contraindicated for pregnant women.
  • Patients will be excluded if they have the following:
  • Intracranial metallic bodies from prior neurosurgical procedure, implanted pacemaker, medication pump, vagal stimulator, deep brain stimulator, TENS unit or ventriculoperitoneal shunt
  • Past history of seizures within one year or unexplained loss of consciousness Family history of epilepsy
Show all 11Show fewer
  • Acute, unstable medical conditions
  • History of substance abuse (within last 6 months)
  • Abnormal neurological exam, other than as signs of the condition being studied
  • Abnormal MRI, or history of known structural brain abnormality other than as signs of the condition studied in the present protocol.
  • Administration of investigational drug within 5 halflives of the drug prior to testing.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • VA Boston Healthcare System Jamaica Plain Campus, Jamaica Plain, MA

    Boston, Massachusetts, 02130

Other trials in United States

About this study

The purpose of this research is to utilize functional magnetic resonance imaging (fMRI) to investigate brain reorganization for language behavior in stroke patients with aphasia. A primary focus of the study is on recovery of nonfluent propositional speech and naming in chronic aphasia patients. The fMRI technique is used to examine activation in the left hemisphere (LH) and right hemisphere (RH), during recovery of specific language behaviors in chronic nonfluent aphasia patients.

Read the detailed description

PURPOSE: The purpose of this 4-year fMRI research is to study brain reorganization for language in patients with left hemisphere (LH) stroke who have chronic nonfluent aphasia. This fMRI research is fundamental and critical to the PI's NIH RO1 grant, Transcranial Magnetic Stimulation (TMS) to Improve Speech in nonfluent aphasia, which was recently renewed for 5 years, 2006-11. There is no overlap in the studies. The NIH grant provides the TMS (real and sham). This VA grant provides 4 different fMRI tasks performed pre- and post- a series of TMS treatments (real and sham) - Overt Naming fMRI; Overt Propositional Speech fMRI; and Nonverbal Semantic Decision tasks for Nouns, and for Actions.

The investigators have observed that application of TMS to an anterior portion of right (R) Broca's homologue (pars triangularis, PTr), results in significantly improved picture naming ability at 2 and 8 Mo. after the last (10th) TMS treatment, in aphasia patients who began TMS at 5-11 years poststroke. Also, half of these nonfluent aphasia patients improved their Phrase Length in propositional speech, post-TMS.

RATIONALE: The investigators and others have observed that patients with chronic, nonfluent aphasia (poor, hesitant speech) have overactivation of R hemisphere (RH) cortical language homologues. The investigators hypothesize this represents a maladaptive plasticity and probably poor active inhibition during speech. Slow, 1 Hz TMS can be used to suppress cortical excitability. The goal is to use 1 Hz TMS to inhibit/suppress the overactivation in RH language homologues. The investigators' early TMS research has shown that suppression of R PTr in these patients is associated with improved speech. The fMRI studies proposed in this VA grant will help to investigate the neurophysiological changes underlying improvement post- TMS in propositional speech and in nonverbal semantic decision tasks. The new MRI technique, diffusion tensor imaging (DTI) will be used to study WM pathways subjacent to cortex treated with TMS.

DESIGN: Randomized, sham-control, incomplete crossover design with 32 patients (16 mild-moderate; 16 severe nonfluent), half receive real TMS series only; half, sham TMS 1st, and real 2nd. Language, Neuropsych. testing, and fMRIs are performed at Entry, and at 2 Mo. post-10 real or sham TMS treatments; and at 6 Mo. post real. There are 4 Projects: 1) fMRI during overt naming and propositional speech (Overt Picture Naming and Picture Descriptions/Story Telling; 2) fMRI during a Nonverbal Semantic Decision Task with Superordinate Noun Icons; 3) fMRI during a Nonverbal Semantic Decision Task with Action and Object Icons; 4) DTI. DTI is performed only at Entry (all subjects). Normal controls (n=8) do not receive TMS; they are studied with fMRI at Entry, at 2 and 6 Mo. later.

HYPOTHESES: Following the real TMS to suppress R PTr, there will be less overactivation on fMRI (better modulation) in RH language homologues, and new LH activation (including L perilesional areas and L SMA). This will be associated with improved propositional speech (BDAE) and nonverbal semantic decision ability at 2 and 6 Mo. post-real TMS. No language or fMRI changes are expected post-sham TMS. The fMRIs performed 3x with the normal controls are not expected to show change, but will document the neural networks for the fMRI tasks.

Keywords
Adult Aphasia, Diffusion Tensor Imaging, functional Magnetic Resonance Imaging, Language Recovery, Left Middle Cerebral Artery Stroke, Nonfluent Aphasia
Medical subject headings
Aphasia, Aphasia, Broca, Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00467103
Study groupRoleWhat they receive
Chronic Stroke patients with Nonfluent Aphasiapatients with left hemisphere (LH) stroke who have chronic nonfluent aphasia

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cerebral Activation in the Left and Right Brain Hemispheres

    Cerebral Activation in the Left and Right Brain Hemispheres

    Measured: Out to 6 months, from baseline entry

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Apr 2007 (estimated)
  2. Study start1 Oct 1999
  3. Primary completion1 Dec 2016
  4. Study completion31 Dec 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
62 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00467103
Sponsor's protocol ID
MHBB-006-06S
Status last verified
Mar 2022
First submitted
25 Apr 2007
Last updated
24 Mar 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Naeser MA, Martin PI, Baker EH, Hodge SM, Sczerzenie SE, Nicholas M, Palumbo CL, Goodglass H, Wingfield A, Samaraweera R, Harris G, Baird A, Renshaw P, Yurgelun-Todd D. Overt propositional speech in chronic nonfluent aphasia studied with the dynamic susceptibility contrast fMRI method. Neuroimage. 2004 May;22(1):29-41. doi: 10.1016/j.neuroimage.2003.11.016.

    PubMed 15109995
  • Martin PI, Naeser MA, Theoret H, Tormos JM, Nicholas M, Kurland J, Fregni F, Seekins H, Doron K, Pascual-Leone A. Transcranial magnetic stimulation as a complementary treatment for aphasia. Semin Speech Lang. 2004 May;25(2):181-91. doi: 10.1055/s-2004-825654.

    PubMed 15118944
  • Martin PI, Naeser MA, Ho M, Doron KW, Kurland J, Kaplan J, Wang Y, Nicholas M, Baker EH, Alonso M, Fregni F, Pascual-Leone A. Overt naming fMRI pre- and post-TMS: Two nonfluent aphasia patients, with and without improved naming post-TMS. Brain Lang. 2009 Oct;111(1):20-35. doi: 10.1016/j.bandl.2009.07.007. Epub 2009 Aug 19.

    PubMed 19695692
  • Martin PI, Naeser MA, Ho M, Treglia E, Kaplan E, Baker EH, Pascual-Leone A. Research with transcranial magnetic stimulation in the treatment of aphasia. Curr Neurol Neurosci Rep. 2009 Nov;9(6):451-8. doi: 10.1007/s11910-009-0067-9.

    PubMed 19818232
  • Naeser MA, Martin PI, Lundgren K, Klein R, Kaplan J, Treglia E, Ho M, Nicholas M, Alonso M, Pascual-Leone A. Improved language in a chronic nonfluent aphasia patient after treatment with CPAP and TMS. Cogn Behav Neurol. 2010 Mar;23(1):29-38. doi: 10.1097/WNN.0b013e3181bf2d20.

    PubMed 20299861
  • Kaplan E, Naeser MA, Martin PI, Ho M, Wang Y, Baker E, Pascual-Leone A. Horizontal portion of arcuate fasciculus fibers track to pars opercularis, not pars triangularis, in right and left hemispheres: a DTI study. Neuroimage. 2010 Aug 15;52(2):436-44. doi: 10.1016/j.neuroimage.2010.04.247. Epub 2010 May 8.

    PubMed 20438853
  • Naeser MA, Martin PI, Treglia E, Ho M, Kaplan E, Bashir S, Hamilton R, Coslett HB, Pascual-Leone A. Research with rTMS in the treatment of aphasia. Restor Neurol Neurosci. 2010;28(4):511-29. doi: 10.3233/RNN-2010-0559.

    PubMed 20714075

Questions about this trial

What is this clinical trial studying?

An observational study of Aphasia and Nonfluent Aphasia, run by VA Office of Research and Development at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cerebral Activation in the Left and Right Brain Hemispheres (time frame: Out to 6 months, from baseline entry). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00467103, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Mar 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in