Phase II Study of Florbetaben (BAY94-9172) PET Imaging for Detection/Exclusion of Cerebral β-amyloid.
An Open-Label, Non-Randomized Study to Evaluate the Efficacy and Safety of BAY94-9172 (ZK 6013443) Positron Emission Tomography (PET) for Detection of Cerebral ß-Amyloid in Individuals With Down Syndrome Compared to Individuals Without Down Syndrome
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 2
Kontakter og lokationer
Studiesteder
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-
Arizona
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Sun City, Arizona, Forenede Stater, 85351
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Connecticut
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New Haven, Connecticut, Forenede Stater, 06510
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
Study participants were individuals with DS and healthy volunteers (HVs).
Main inclusion criteria for individuals without DS
- >=21 and <= 40 years of age
- Mini-Mental State Examination (MMSE) >= 28
- Clinical Dementia Rating (CDR) of 0
Main inclusion criteria for individuals with DS
- >= 40 years of age
Exclusion Criteria:
Main exclusion criteria for both groups
- Unstable medical or psychiatric condition, study specific screening procedures with the understanding that the patient has the right to withdraw from the study at any time
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Diagnostisk
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Florbetaben (BAY94-9172)
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300 megabecquerels (MBq) as single IV injection of 2 to 10 mL
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Sensitivity of the Independent Visual Assessment of Detecting Cerebral Amyloid-beta in Individuals With Down Syndrome and Specificity in Subjects Without Down Syndrome
Tidsramme: 100-120 min
|
The primary variables are sensitivity (percentage of DS subjects positive for cerebral beta-amyloid) and specificity (percentage of healthy volunteers negative for cerebral beta-amyloid) of brain uptake of florbetaben based on the majority read of the visual assessment by three independent blinded readers of PET images obtained 100 to 120 minutes post-injection of florbetaben.
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100-120 min
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Sensitivity Results in the Down Syndrome Age Subgroups
Tidsramme: 100 - 120 min
|
The majority read sensitivity (percentage of DS subjects positive for cerebral beta-amyloid by majority read) was computed for the group of DS subjects with age equal to or below the median age (DS-young) and for DS subjects with age above the median age (DS-old).
The median age was 46 yrs, with 3 subjects being exactly 46 yrs old.
As defined, these subjects were assigned to the DS-young group.
|
100 - 120 min
|
|
Quantitative Parameters Standard Uptake Value Ratio
Tidsramme: 100 - 120 min p.i.
|
The Standard Uptake Value Ratios for florbetaben signal in the frontal cortex, posterior cingulate, lateral temporal cortex, parietal cortex, and cerebellum (white matter) were determined as a quantitative measure of tracer uptake.
The SUV is defined as the ratio of (1) the tissue radioactivity concentration c (in MBq/kg) at time point t, and (2) the injected activity (in MBq, extrapolated to the same time t) divided by the body weight (in kg).
These SUV numbers from regions of interest were then used to derive SUV ratios (SUVR) using the SUV from the cerebellar cortex as reference.
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100 - 120 min p.i.
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Consistency Between Visual and Quantitative Efficacy
Tidsramme: 100 - 120 min
|
For a comparison of the results of the visual assessment with the quantitative assessment, descriptive Standardized Uptake Value Ratio (SUVR) statistics were computed separately for DS subjects with an abnormal/normal majority read of the PET scan (DS-PET+/DS-PET-).
The SUV is defined as the ratio of (1) the tissue radioactivity concentration c (in MBq/kg) at time point t, and (2) the injected activity (in MBq, extrapolated to the same time t) divided by the body weight (in kg).
These SUV numbers from regions of interest were then used to derive SUV ratios (SUVR) using the SUV from the cerebellar cortex as reference.
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100 - 120 min
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
- Patologiske processer
- Metaboliske sygdomme
- Sygdomme i nervesystemet
- Neurologiske manifestationer
- Neuroadfærdsmæssige manifestationer
- Sygdom
- Medfødte abnormiteter
- Genetiske sygdomme, medfødte
- Proteostase mangler
- Intellektuel handicap
- Abnormiteter, multiple
- Kromosomlidelser
- Syndrom
- Amyloidose
- Downs syndrom
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 14311
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