- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01623284
PiB PET Scanning in Speech and Language Based Dementias
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Speech and language based dementias (SLDs) (often referred to as primary progressive aphasias or PPA) are neurodegenerative diseases in which speech or language impairments are the most salient features of the disease and explain deficits in activities of daily living. Patients with SLDs may have poor grammar, prominent anomia, comprehension deficits, speech production and articulation problems, difficulty with repetition of words or sentences, word finding pauses, or a combination of all these features. The SLDs can be further divided into different subtypes. Up to 50% of patients with SLDs that go on to autopsy have shown Alzheimer type pathology where beta-amyloid deposition is observed; the rest have pathology consistent with frontotemporal lobar degeneration where beta-amyloid deposition is absent. Future disease modifying treatments that target beta-amyloid will most likely differ from treatments that do not target beta-amyloid. As a consequence, biomarkers are needed to differentiate patients with SLDs with and without beta-amyloid deposition.
Little research has been done to identify biomarkers that could differentiate patients with SLDs with and without beta-amyloid, mainly because the gold standard to identify the presence of beta-amyloid has been pathological examination, which does not always occur, and may not occur until more than 10 years after onset. The recent development of [N-methyl-11C]2-(4'-methylaminophenyl)-6-hydroxybenzothiazole also known as 11C Pittsburgh Compound B or PiB is a solution to this problem since PiB allows the in vivo detection of beta-amyloid. Unfortunately, PiB is very expensive.
The long term goal of our research is to develop a cost effective algorithmic approach to the evaluation and diagnosis of patients presenting with SLDs. The objective of the studies outlined in this proposal is to identify clinical, neuropsychological, or imaging biomarkers that are readily available, relatively inexpensive, and non-invasive that will allow the differentiation of patients with SLDs with and without beta-amyloid deposition. We will use PiB as an indicator of beta-amyloid pathology. Our proposal is predicated upon our strong preliminary data showing that clinical, neuropsychological and radiological features differ between patients with SLDs with and without beta-amyloid deposition. Our central hypothesis is that temporo-parietal lobe findings such as memory loss, visuospatial/perceptual impairment, parietal lobe atrophy on magnetic resonance imaging (MRI), and parietal lobe hypometabolism on [18-F]-fluoro-deoxy-glucose positron emission tomography (FDG-PET), will be associated with beta-amyloid deposition (PiB positive status). On-the-other hand, frontal lobe features, such as apraxia of speech and behavioral and executive dysfunction, as well as extrapyramidal features such as Parkinsonism, will be associated with absence of beta-amyloid deposition (PiB negative status). The rationale for examining these clinical-imaging relationships is that successful predictions will provide a solid scientific foundation for the ultimate development of a cost effective algorithm to guide the diagnosis of SLDs.
Patients found to be eligible and willing to enroll in this study will be asked to undergo a Neurologic Examination, a Speech Pathology Consultation, Neuropsychometric testing, an MRI scan, an FDG PET scan and a PiB PET scan of the brain. This will be done over a period of two days at the Mayo Clinic in Rochester, MN.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Minnesota
-
Rochester, Minnesota, United States, 55905
- Mayo Clinic
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Over the age of 18
- Has an informant/study partner who will be able to provide independent evaluation of functioning
- Speaks English as their primary language (including bilingual patients whose primary language is English)
- Fulfills diagnostic criteria for PPA (Primary Progressive Aphasia) or Progressive Apraxia of Speech
- Agrees to and is eligible to undergo MRI and PET scanning
- If woman of child bearing age, pt must agree to pregnancy test no more than 48 hours before the PET scans
Exclusion Criteria:
Any concurrent illnesses that could account for speech and language deficits, such as:
- traumatic brain injury, strokes and developmental syndromes
- patients meeting criteria for another neurodegenerative disease (Alzheimer's Disease, Dementia with Lewy Bodies, behavioral variant frontotemporal dementia, progressive supranuclear palsy, corticobasal degeneration)
- Women who is pregnant or post-partum and breast-feeding
- Patients for which MRI is contraindicated (metal in head, cardiac pace maker, etc.), if there is severe claustrophobia, if there are conditions that may confound brain imaging studies (e.g. structural abnormalities, including subdural hematoma or intracranial neoplasm), or if they are medically unstable or are on medications that might affect brain structure or metabolism,(e.g. chemotherapy)
- Patient is mute (secondary to dysarthria only)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: PiB and FDG positron emission tomography (PET)
All subjects will receive PiB and FDG PET diagnosis on approximately day 1 or day 2 of study to determine if they have beta-amyloid deposits in their brains.
|
One time intravenous administration of 740 megabecquerel (MBq) of [N-methyl-11C]2-(4'-methylaminophenyl)-6-hydroxybenzothiazole (PiB) (range 370 - 740 MBq).
Other Names:
One time intravenous administration of 629 megabecquerel (MBq) of [18-F]-fluoro-deoxy-glucose (FDG) (range 555 - 740 MBq).
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Percentage of patients with different speech and language based dementia (SLD) subtypes who have a [N-methyl-11C]2-(4'-methylaminophenyl)-6-hydroxybenzothiazole (PiB) positive positron emission tomography (PET) scan at presentation
Time Frame: Study entry, approximately day 1 or day 2 of study
|
Study entry, approximately day 1 or day 2 of study
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percentage of patients who exhibit apraxia of speech as measured by the Apraxia of Speech Rating Scale at presentation
Time Frame: Study entry, approximately day 1 or day 2 of study
|
Apraxia of Speech Rating Scale has been developed by the speech pathologists involved in this study, and has tested to be reliable.
The scale ranges from 0-4; 0=apraxia of speech not present, 4=apraxia of speech nearly always evident and marked in severity.
|
Study entry, approximately day 1 or day 2 of study
|
Temporoparietal hypometabolism as shown on [18-F]-fluoro-deoxy-glucose positron emission tomography (FDG-PET) scan at presentation
Time Frame: Study entry, approximately day 1 or day 2 of study
|
Study entry, approximately day 1 or day 2 of study
|
|
Grey matter loss as shown on magnetic resonance imaging (MRI) at presentation
Time Frame: Study entry, approximately day 1 or day 2 of study
|
Study entry, approximately day 1 or day 2 of study
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Keith A Josephs, M.D. MST, MSc, Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Mental Disorders
- Metabolic Diseases
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neurologic Manifestations
- Neurobehavioral Manifestations
- Neurocognitive Disorders
- Neurodegenerative Diseases
- Psychomotor Disorders
- TDP-43 Proteinopathies
- Proteostasis Deficiencies
- Language Disorders
- Communication Disorders
- Speech Disorders
- Frontotemporal Lobar Degeneration
- Dementia
- Aphasia
- Frontotemporal Dementia
- Aphasia, Primary Progressive
- Pick Disease of the Brain
- Apraxias
- Aphasia, Broca
- Primary Progressive Nonfluent Aphasia
- Molecular Mechanisms of Pharmacological Action
- Radiopharmaceuticals
- Fluorodeoxyglucose F18
Other Study ID Numbers
- 09-008772
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Primary Progressive Aphasia
-
Massachusetts General HospitalCompletedLogopenic Variant Primary Progressive Aphasia | Non-Fluent Primary Progressive AphasiaUnited States
-
University of Texas at AustinUniversity of California, San Francisco; National Institute on Deafness and...Active, not recruitingPrimary Progressive Aphasia | Aphasia | Semantic Dementia | Logopenic Progressive Aphasia | Semantic Memory Disorder | Nonfluent Aphasia, Progressive | Aphasia, ProgressiveUnited States
-
Johns Hopkins UniversityNational Institute on Aging (NIA)RecruitingPrimary Progressive Aphasia | Logopenic Progressive Aphasia | Non-Fluent Primary Progressive AphasiaUnited States, Canada
-
Mayo ClinicNational Institute on Deafness and Other Communication Disorders (NIDCD)RecruitingPrimary Progressive Aphasia | Apraxia of Speech | PPA | Non-fluent Aphasia | Primary Progressive Non-fluent AphasiaUnited States
-
Massachusetts General HospitalNational Institute on Deafness and Other Communication Disorders (NIDCD)RecruitingLogopenic Variant Primary Progressive Aphasia | Non-fluent Variant Primary Progressive Aphasia | Semantic Variant Primary Progressive AphasiaUnited States
-
University of British ColumbiaTerminatedPrimary Progressive Nonfluent AphasiaCanada
-
Axon Neuroscience SEUnknownPrimary Progressive Nonfluent AphasiaGermany
-
Montreal Heart InstituteActive, not recruitingNeurodegenerative Diseases | Primary Progressive Aphasia | Semantic Dementia | Logopenic Progressive Aphasia | Non-fluent AphasiaCanada
-
Mayo ClinicRecruitingPrimary Progressive Aphasia | Apraxia of Speech | Primary Progressive Nonfluent Aphasia | Non-fluent AphasiaUnited States
-
University of ManitobaRecruitingLogopenic Progressive AphasiaCanada
Clinical Trials on C-11 PiB
-
Mayo ClinicEnrolling by invitationParkinson Disease | Semantic Dementia | Behavioral Variant of Frontotemporal Dementia | CBD | Apraxia of Speech | MSA - Multiple System Atrophy | FTD | PPA | PSP | PCA | LPA | Semantic AphasiaUnited States
-
University of Alabama at BirminghamRecruitingAlzheimer DiseaseUnited States
-
Mayo ClinicNational Institute on Aging (NIA)RecruitingAlzheimer Disease | Alzheimer Disease, Early Onset | Amnestic Mild Cognitive Disorder | Atypical Alzheimer's Disease | Logopenic Progressive Aphasia (LPA) | Posterior Cortical Atrophy (PCA) | Amnestic Disorder | Amnestic SymptomsUnited States
-
Avid RadiopharmaceuticalsGeneral Electric; American College of Radiology Imaging NetworkCompletedAlzheimer's DiseaseUnited States
-
Mayo ClinicCompletedPosterior Cortical Atrophy (PCA) | Atypical Alzheimers Disease | Logopenic Variant of Primary Progressive Aphasia (LPA)United States
-
Mayo ClinicCompletedAlzheimer's DiseaseUnited States
-
Mayo ClinicNational Institute on Aging (NIA)Enrolling by invitationFrontotemporal Dementia | Vascular Dementia | Alzheimer's Disease | Dementia With Lewy BodiesUnited States
-
Yale UniversityNational Institute on Drug Abuse (NIDA)Completed
-
Yale UniversityNational Institute on Drug Abuse (NIDA); National Institutes of Health (NIH)Active, not recruiting
-
National Institute of Mental Health (NIMH)CompletedHealthy | AtherosclerosisUnited States