Evaluation of [123I] AV83 and SPECT in Patients With Alzheimer Disease in Comparison to Healthy Controls
Evaluation of [123I] AV83 and SPECT as a Marker of Beta-Amyloid Protein Deposition in Subjects With Alzheimer Disease in Comparison to Healthy Subjects
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Approximately 20 patients with Alzheimer's disease (AD) and 10 healthy controls will be recruited to participate in this study. Healthy controls will be examined to ensure that there is no evidence of neurodegenerative changes including cognitive decline.
All subjects will undergo written informed consent and a screening evaluation including baseline clinical laboratory testing, a baseline physical and neurological evaluation and baseline cognitive evaluations.
Subjects will be asked to undergo a bolus injection of 123-I AV83. Subjects will undergo serial SPECT imaging scans and serial venous plasma sampling for measurement of 123-I AV83 in plasma (both protein bound and free) over a period of up to 6 hours.
Subjects may be asked to undergo a second imaging visit between 2 and 6 weeks following the initial imaging visit following similar procedures to the initial imaging visit to evaluate the reproducibility of the imaging measure using this procedure. The imaging analyses will be performed by an image-processing specialist who will remain masked to the procedures employed with each imaging acquisition.
The primary imaging outcome measure will be the brain regional distribution volumes expressed as a brain tissue to plasma ratio of the radioligand, 123-I AV83. Time to the peak uptake and amplitude of the peak uptake will be evaluated for all brain regions and the results for the AD patients and controls will be compared.
For those subjects undergoing repeat imaging visits, the data from the initial scan will be compared to the second scan to determine which offers the reproducibility of the imaging outcome measure.
Tipo de estudio
Inscripción (Anticipado)
Fase
- Fase 1
Contactos y Ubicaciones
Ubicaciones de estudio
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Connecticut
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New Haven, Connecticut, Estados Unidos, 06510
- Molecular NeuroImaging
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- The participant is 50 years or older.
- Written informed consent is obtained.
- Participants have a clinical diagnosis of Alzheimer's disease based on National Institute of Neurological and Communicative Disorders and Stroke/Alzheimer's Disease and Related Disorders Association (NINCDS/ADRDA) criteria.
- Mini-Mental Status Exam score < 25.
- Modified Hachinski Ischemia Scale score of ≤ 4.
- Geriatric Depression Scales (GDS) ≤ 10.
- For females, non-child bearing potential or negative urine or blood pregnancy test on day of 123-I AV39 injection.
Exclusion Criteria:
- The subject has signs or symptoms of another neurodegenerative disease including Parkinson's disease, diffuse Lewy body dementia, or history of significant cerebrovascular disease.
- The subject has a clinically significant abnormal laboratory value and/or clinically significant unstable medical or psychiatric illness
- The subject has any disorder that may interfere with drug absorption distribution, metabolism, or excretion (including gastrointestinal surgery).
- The subject has evidence of clinically significant gastrointestinal, cardiovascular, hepatic, renal, hematological, neoplastic, endocrine, neurological, immunodeficiency, pulmonary, or other disorder or disease.
- Pregnancy
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Diagnóstico
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
|---|---|
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Assess the dynamic uptake and washout of 123-I AV83
Periodo de tiempo: one year
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one year
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Medidas de resultado secundarias
Medida de resultado |
Periodo de tiempo |
|---|---|
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Blood metabolite characterization of 123-I AV39 in healthy and AD subjects to determine the metabolic fate and nature of metabolites
Periodo de tiempo: one year
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one year
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Evaluate the test/retest reproducibility of 123-IAv83 and SPECT in AD subjects and healthy controls.
Periodo de tiempo: one year
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one year
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- AV-83 001
- 07-033
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