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AphasiaPhase 2NCT03651700

Transcranial Magnetic Stimulation and Constraint Induced Language Therapy for Chronic Aphasia

A Phase 2 study testing Active TMS and CILT in people with Aphasia, run by H. Branch Coslett 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
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Trial summary

Transcranial Magnetic Stimulation (TMS) has been demonstrated to improve language function in subjects with chronic aphasia in a number of small studies, many of which did not include a control group. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Aphasia
What is being tested?
Active TMS and CILT
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
86 participants
Where
1 siteUnited States
Study dates
28 Mar 2019to 31 Aug 2024
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clinical evidence and MRI or CT verification of a single left hemisphere stroke with moderate to severe aphasia.
  • Suffered their stroke at least 6 months prior to their testing
  • Must be able to understand the nature of the study, and give informed consent

Who cannot join

  • Multiple strokes (excluding small lacunar strokes) as defined by brain imaging
  • History of substance abuse
  • Previous head trauma with loss of consciousness for more than 5 minutes
  • Psychiatric illness (We note that subjects will be assessed with the 15-item Geriatric Depression scale. Because depression is very difficult to evaluate in aphasic subjects, potential subjects will not be excluded on the basis of the depression score)
  • Chronic exposure to medications that might be expected to have lasting consequences for the central nervous system (e.g. haloperidol, dopaminergics)
  • History of or neuropsychological findings suggestive of dementia

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: A Phase II, Randomized Blinded Study of the Effects of Transcranial Magnetic Stimulation and Constraint Induced Language Therapy for the Treatment of Chronic Aphasia

Transcranial Magnetic Stimulation (TMS) has been demonstrated to improve language function in subjects with chronic aphasia in a number of small studies, many of which did not include a control group. Although the treatment appears promising, data to date do not permit an adequate assessment of the utility of the technique. The investigators propose to study the effects of TMS combined with Constraint Induced Language Therapy (CILT) in 75 subjects with chronic aphasia. Subjects will be randomized in a 2:1 ratio to TMS with CILT or sham TMS with CILT. One Hz TMS at 90% motor threshold will be delivered to the right inferior frontal gyrus for 20 minutes in 10 sessions over 2 weeks; language therapy will be provided for one hour immediately after the conclusion of each session of TMS. Change from baseline in the Western Aphasia Battery Aphasia Quotient at 6 months after the end of TMS treatment will serve as the primary outcome measure.

Read the detailed description

TMS is a technique by which a brief electrical current is induced in brain tissue causing a brief suppression of the excitability of the underlying tissue; the technique, which was introduced in the 1980s and has been extensively used around the world, has been shown to transiently improve or disrupt specific cognitive operations. To achieve this end, a coil is positioned against the subject's head. The delivery of a single pulse begins with the discharge of current from a capacitor into a circular or figure-of-eight coil; this electrical current generates a brief magnetic field of up to 2.2 Tesla. As the pulse of electricity has a rise time of 0.2 ms. and a duration of 1 ms., the magnetic field changes in intensity quite rapidly. Because the magnetic field passes freely through the scalp, skull, and meninges, the flux in the magnetic field induces a small electric field in the brain that transiently alters neural activity.

TMS may be delivered in a variety of ways. The investigators propose to use 1 Hz TMS; that is, TMS pulses will be delivered at a frequency of 1/second. This style of TMS is assumed to be inhibitory in that it transiently suppresses the function of the cortex under the coil. Using the figure-of-eight coil to be employed here, TMS is thought to reduce activity in approximately 1 cubic cm. of cortex. Many investigators have employed TMS with a frequency of 1 Hz for periods of 20 minutes and longer; mild behavioral deficits are often present for several minutes in these studies.

The baseline phase will consist of 3 sessions, each lasting 1-2 hours depending on the stamina of the subject. The point of the baseline testing is to characterize the subject's language function. To that end, a number of standard language and neuropsychological tasks will be administered. These include the Western Aphasia Battery, Pyramids and Palm Trees test, Figural Fluency Test, word and non-word repetition tasks, the Nicholas and Brookshire Narratives, CILT stimulus naming, and Northwestern Assessment of Verbs and Sentences. Additionally, during the baseline, subjects will undergo MRI of the brain or, if they have a contraindication to MRI, a CAT scan of the head. No contrast will be used.

In the treatment phase, there will be 10 TMS sessions over 2 consecutive weeks in which 20 minutes (1200 pulses) of 1 Hz TMS at 90% motor threshold will be delivered to the inferior pars triangularis. Each TMS treatment session will be immediately followed by a 60-90 minute session of CILT

There will be two 3-month post-treatment visits and two 6-month post-treatment visits in which the full battery of language and cognitive assessments will be repeated. Subjects who are able to undergo MRI scanning will have anatomic and fMRI scans at the first 6-month post-treatment visit.

The investigators will pair TMS with CILT which has been shown to have positive outcomes in post-stroke aphasia. CILT invokes use-dependent learning in communicative interactions by requiring spoken output and restricting use of alternative forms of communication, such as gestures. The investigators will use a dual card-matching task modeled after Maher et al. As in the original CILT design, the participant interacts verbally with a conversational partner (here, the speech language pathologist), in turn requesting a card of given description and complying with the partner's request. In this way, the treatment targets both production and comprehension. Moreover, as verbal targets increase in linguistic complexity across the protocol ("a ball", "throw a ball"; "Do you have a ball"?), a variety of lexical and phrasal structures are targeted. Studies of CILT have reported gains on multiple language behaviors, supporting its broad engagement of the language network.

Conditions
Aphasia
Being tested
Active TMS, Sham TMS, CILT
Medical subject headings
Aphasia

What participants receive

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

  • Active TMSDevice

    Active TMS will be at 90% motor threshold

  • Sham TMSDevice

    Sham TMS will be administered

  • CILTBehavioural

    Also called Constraint Induced Language Therapy

    60-90 minutes of CILT will be administered during each treatment session

Study groups in NCT03651700
Study groupRoleWhat they receive
Active TMSActive comparatorThere will be 10 TMS sessions over 2 consecutive weeks in which 20 minutes (1200 pulses) of 1 Hz active TMS will be delivered to the inferior pars triangular. Each TMS treatment session will be immediately followed by a 60-90 minute session of Constrained Induced Language Therapy (CILT).
Receives: Device: Active TMS; Behavioral: CILT
Sham TMSSham comparatorThere will be 10 TMS sessions over 2 consecutive weeks in which 20 minutes (1200 pulses) of 1 Hz sham TMS will be delivered to the inferior pars triangular. Sham TMS will be administered with a sham TMS coil that looks and sounds like the active coil but does not generate a magnetic field. Each TMS treatment session will be immediately followed by a 60-90 minute session of Constrained Induced Language Therapy (CILT).
Receives: Device: Sham TMS; Behavioral: CILT

What is being measured

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

  1. Change in WAB-AQ

    The primary outcome measure will be the change in score on the Western Aphasia Battery Aphasia Quotient (WAB-AQ), a score assessing overall aphasia recovery. Scores can range from 0-100, with higher scores representing better outcomes. 0-25 is very severe, 26-50 is severe, 51-75 is moderate, and 76-above is mild. A score of 93 or higher is considered recovered.

    Measured: 6-months post-treatment

Secondary outcomes (1)
  1. Change in Percentage of Items Correct on the PNT

    The secondary outcome measure will be change in naming accuracy on the Philadelphia Naming Test (PNT). PNT naming accuracy is measured as a percentage from 0% to 100% with higher percentages meaning better naming ability. The task involves naming 175 pictures of common objects.

    Measured: 6-months post-treatment

Timeline

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

  1. First posted29 Aug 2018
  2. Study start28 Mar 2019
  3. Primary completion31 Aug 2024
  4. Study completion31 Aug 2024

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants will be randomized to either TMS or sham TMS in a 2:1 allocation ratio.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
86 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03651700
Sponsor's protocol ID
831532-chbdfejh
Other IDs
R01DC016800
Status last verified
Sep 2025
First submitted
27 Aug 2018
Last updated
14 Oct 2025
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Shewan CM, Kertesz A. Reliability and validity characteristics of the Western Aphasia Battery (WAB). J Speech Hear Disord. 1980 Aug;45(3):308-24. doi: 10.1044/jshd.4503.308.

    PubMed 7412225
  • Howard, D., & Patterson, K. E. (1992). The Pyramids and Palm Trees Test: A Test of Semantic Access from Words and Pictures. Thames Valley Test Company. Retrieved from books.google.com/books?id=dykONQAACAAJ

  • Ruff, R. M. (1996). Ruff figural fluency test: professional manual. Psychological Assessment Resources.

  • Nicholas LE, Brookshire RH. A system for quantifying the informativeness and efficiency of the connected speech of adults with aphasia. J Speech Hear Res. 1993 Apr;36(2):338-50. doi: 10.1044/jshr.3602.338.

    PubMed 8487525
  • Pulvermuller F, Neininger B, Elbert T, Mohr B, Rockstroh B, Koebbel P, Taub E. Constraint-induced therapy of chronic aphasia after stroke. Stroke. 2001 Jul;32(7):1621-6. doi: 10.1161/01.str.32.7.1621.

    PubMed 11441210
  • Maher LM, Kendall D, Swearengin JA, Rodriguez A, Leon SA, Pingel K, Holland A, Rothi LJ. A pilot study of use-dependent learning in the context of Constraint Induced Language Therapy. J Int Neuropsychol Soc. 2006 Nov;12(6):843-52. doi: 10.1017/S1355617706061029.

    PubMed 17064447
  • Barthel, G., Meinzer, M., Djundja, D., & Rockstroh, B. (2008). Intensive language therapy in chronic aphasia: Which aspects contribute most? Aphasiology, 22(4), 408-421.

  • Goral M, Kempler D. TRAINING VERB PRODUCTION IN COMMUNICATIVE CONTEXT: EVIDENCE FROM A PERSON WITH CHRONIC NON-FLUENT APHASIA. Aphasiology. 2009 Dec 12;23(12):1383-1397. doi: 10.1080/02687030802235203.

    PubMed 19911035
  • Meinzer M, Rodriguez AD, Gonzalez Rothi LJ. First decade of research on constrained-induced treatment approaches for aphasia rehabilitation. Arch Phys Med Rehabil. 2012 Jan;93(1 Suppl):S35-45. doi: 10.1016/j.apmr.2011.06.040.

    PubMed 22202189
  • Abo M, Kakuda W, Watanabe M, Morooka A, Kawakami K, Senoo A. Effectiveness of low-frequency rTMS and intensive speech therapy in poststroke patients with aphasia: a pilot study based on evaluation by fMRI in relation to type of aphasia. Eur Neurol. 2012;68(4):199-208. doi: 10.1159/000338773. Epub 2012 Aug 29.

    PubMed 22948550
  • Avenanti A, Coccia M, Ladavas E, Provinciali L, Ceravolo MG. Low-frequency rTMS promotes use-dependent motor plasticity in chronic stroke: a randomized trial. Neurology. 2012 Jan 24;78(4):256-64. doi: 10.1212/WNL.0b013e3182436558. Epub 2012 Jan 11.

    PubMed 22238412
  • Barwood CH, Murdoch BE, Riek S, O'Sullivan JD, Wong A, Lloyd D, Coulthard A. Long term language recovery subsequent to low frequency rTMS in chronic non-fluent aphasia. NeuroRehabilitation. 2013;32(4):915-28. doi: 10.3233/NRE-130915.

    PubMed 23867417
  • Barwood CHS, Murdoch BE, Whelan BM, Lloyd D, Riek S, O'Sullivan JD, Coulthard A, Wong A. Improved receptive and expressive language abilities in nonfluent aphasic stroke patients after application of rTMS: an open protocol case series. Brain Stimul. 2012 Jul;5(3):274-286. doi: 10.1016/j.brs.2011.03.005. Epub 2011 Apr 13.

    PubMed 22037124
  • Hamilton RH, Sanders L, Benson J, Faseyitan O, Norise C, Naeser M, Martin P, Coslett HB. Stimulating conversation: enhancement of elicited propositional speech in a patient with chronic non-fluent aphasia following transcranial magnetic stimulation. Brain Lang. 2010 Apr;113(1):45-50. doi: 10.1016/j.bandl.2010.01.001. Epub 2010 Feb 16.

    PubMed 20159655
  • Hara T, Abo M, Kobayashi K, Watanabe M, Kakuda W, Senoo A. Effects of low-frequency repetitive transcranial magnetic stimulation combined with intensive speech therapy on cerebral blood flow in post-stroke aphasia. Transl Stroke Res. 2015 Oct;6(5):365-74. doi: 10.1007/s12975-015-0417-7. Epub 2015 Aug 7.

    PubMed 26245774

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Active TMS and CILT in people with Aphasia, run by H. Branch Coslett 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 3 inclusion and 6 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 14 Oct 2025. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 22 Sep 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change in WAB-AQ (time frame: 6-months post-treatment). 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 NCT03651700, which also lists 33 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 14 Oct 2025.

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