Language in Primary Progressive Aphasia
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT00537004 |
Recruitment Status :
Recruiting
First Posted : September 28, 2007
Last Update Posted : January 25, 2023
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Condition or disease |
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Primary Progressive Aphasia |
The Language in Primary Progressive Aphasia (PPA) aims to understand the behavioral, anatomical and physiological changes in people with PPA throughout the course of the illness. The researchers in this study want to increase awareness of PPA, educate others about this unique disorder, and to encourage more research to eventually develop therapies.
During the three-day research program, participants will be asked to undergo neuropsychological testing (paper and pencil tests that evaluate cognition), advanced imaging (MRI and PET), cognitive experiments, and other computer and language testing batteries. Participants may be asked to return every two years to complete the same measures.
For participants not living near Chicago, IL, flights and accommodations (for both the person with PPA and their companion) will be covered by the study.
Study Type : | Observational |
Estimated Enrollment : | 500 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Official Title: | Asymmetric Neurodegeneration and Language in Primary Progressive Aphasia |
Study Start Date : | May 2007 |
Estimated Primary Completion Date : | April 2027 |
Estimated Study Completion Date : | April 2027 |

Group/Cohort |
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PPA (Primary Progressive Aphasia)
Individuals with primary progressive aphasia
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Control
Individuals with no diagnosis of any type of dementia
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- Neuropsychological variables [ Time Frame: Immediately after testing and at two years post-testing ]

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Ages Eligible for Study: | Child, Adult, Older Adult |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Diagnosis of primary progressive aphasia
- Right-handed
- Native English speaker
- Visual acuity of 20/30 corrected
- Adequate hearing to follow conversation
- Safe for an MRI scan
Exclusion Criteria:
- Left-handedness
- Claustrophobia
- Presence of significant medical illness that initially or in the future could interfere with continued participation in the study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00537004
Contact: Seyi Adeolu | 312-503-2398 | PPA.Research@northwestern.edu |
United States, Illinois | |
Northwestern University | Recruiting |
Chicago, Illinois, United States, 60611 | |
Contact: Seyi Adeolu 312-503-2398 PPA.Research@northwestern.edu | |
Principal Investigator: M.-Marsel Mesulam, MD |
Principal Investigator: | Marsel Mesulam, MD | Northwestern University Feinberg School of Medicine |
Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Marsel Mesulam, Director, Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University |
ClinicalTrials.gov Identifier: | NCT00537004 |
Other Study ID Numbers: |
IA0125 R01AG077444 ( U.S. NIH Grant/Contract ) |
First Posted: | September 28, 2007 Key Record Dates |
Last Update Posted: | January 25, 2023 |
Last Verified: | January 2023 |
primary progressive aphasia frontotemporal dementia semantic dementia |
progressive nonfluent aphasia progressive aphasia frontotemporal lobar degeneration |
Aphasia Aphasia, Primary Progressive Pick Disease of the Brain Frontotemporal Dementia Speech Disorders Language Disorders Communication Disorders Neurobehavioral Manifestations Neurologic Manifestations Nervous System Diseases |
Dementia Brain Diseases Central Nervous System Diseases Neurocognitive Disorders Mental Disorders Frontotemporal Lobar Degeneration TDP-43 Proteinopathies Neurodegenerative Diseases Proteostasis Deficiencies Metabolic Diseases |