- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT02018913
Blood-brain Barrier Leakage in Dementia. A Dynamic Contrast-enhanced MRI Study
Alzheimer's disease (AD) and vascular dementia (VaD) are the most common forms of dementia. Yet, the cause of these diseases is still unknown. A potentially important initiating factor is a disrupted blood-brain barrier. This can initiate cerebral microangiopathy, which has frequently been associated with VaD. Nevertheless, also in most AD patients a substantial increase of vascular damage has been observed. The present study investigates the correlation between blood-brain-barrier breakdown and cognitive decline in AD and VaD. An innovative dynamic contrast-enhanced MRI scan that has recently been developed and tested at our institute, will be used to measure blood-brain barrier permeability.
Objective: We will investigate the relationship between this permeability measure and (i) cognitive performance and (ii) the status of MRI visible cerebrovascular pathology (i.e. white matter hyperintensities, lacunar infarctions, microbleeds) in the most common forms of dementia.
Studieoversikt
Status
Forhold
Studietype
Registrering (Forventet)
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
Patients:
- Informed consent before participation in the study
- Age of 55 and older
- Diagnosed with AD, VaD, mixed AD and VaD, mild cognitive impairment, vascular cognitive impairment and subjective cognitive impairment
- MMSE ≥ 20 and patients are mentally competent (in general, individuals with an MMSE ≥18 are considered mentally competent)
Healthy participants:
- Informed consent before participation in the study
- Age of 55 and older
- No Diagnosis of dementia, prodromal dementia, or mild cognitive impairment.
- MMSE ≥ 26
- No substantial memory complaints (according to participant)
- Average age, gender and education is similar to the patient groups.
Exclusion Criteria:
- Contraindications for scanning (e.g. brain surgery, cardiac pacemaker, metal implants, claustrophobia, large body tattoos)
- Contraindications for contrast agent Gadovist (renal failure) as determined by the estimated Glomular Filtration Rate eGFR < 30 mL/min; or known allergy to Gadovist. If participants have a low renal function as determined by <30 GFR <60, the PI will contact a radiologist (Paul Hofman). The radiologist will decide if this patient should be excluded.
- Major vascular disorders (e.g. stroke, heart disease)
- Psychiatric or neurological disorders: Major depression (< 12 months); history of schizophrenia; bipolar disorder; psychotic disorder NOS or treatment for a psychotic disorder (< 12 mnd); cognitive impairment due to alcohol abuse; epilepsy; Parkinson's disease; MS; brain surgery; brain trauma; electroshock therapy; kidney dialysis; Meniere's disease; and brain infections.
- Structural abnormalities of the brain
- Cognitive impairment due to alcohol/drug abuse or abuse of other substances.
- Absence of reliable informant (for patient groups)
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
Blood brain barrier permeability as measured by T1-weighted dynamic contrast MRI
Tidsramme: Up to 4 years: April 2014-April 2018
|
Up to 4 years: April 2014-April 2018
|
Samarbeidspartnere og etterforskere
Samarbeidspartnere
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Forventet)
Studiet fullført (Forventet)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
- Psykiske lidelser
- Kardiovaskulære sykdommer
- Vaskulære sykdommer
- Cerebrovaskulære lidelser
- Hjernesykdommer
- Sykdommer i sentralnervesystemet
- Sykdommer i nervesystemet
- Arteriosklerose
- Arterielle okklusive sykdommer
- Nevrokognitive lidelser
- Nevrodegenerative sykdommer
- Tauopatier
- Intrakranielle arterielle sykdommer
- Intrakraniell arteriosklerose
- Leukoencefalopatier
- Demens
- Alzheimers sykdom
- Demens, vaskulær
Andre studie-ID-numre
- NL46089.068.13
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