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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05394636
Other study ID # Local/2022/Dr-02
Secondary ID
Status Completed
Phase
First received
Last updated
Start date June 1, 2022
Est. completion date August 31, 2022

Study information

Verified date December 2022
Source Centre Hospitalier Universitaire de Nimes
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Cerebellar superficial siderosis (SS) has been recently reported to be present in about 10% of both hereditary (n=50) and sporadic (n=46) cerebral amyloid angiopathy (CAA) patients on 3T MRI using susceptibility-weighted imaging (SWI) in the majority of patients. In that study, cerebellar SS was associated with a higher number of supratentorial lobar and superficial cerebellar macrobleeds (although cerebellar SS was not directly located adjacent to these cerebellar macrobleeds). It is unclear if cerebellar SS is caused by in situ leakage of cerebellar leptomeningeal vessels or rather represents hemorrhagic diffusion from cerebellar parenchymal micro/macrobleeds or from supratentorial bleeding sources via the tentorium cerebelli (TC).


Recruitment information / eligibility

Status Completed
Enrollment 111
Est. completion date August 31, 2022
Est. primary completion date August 31, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - CAA patients (according to the modified Boston criteria) - with acute symptoms related to acute ICH, acute subarachnoid haemorrhage, or cortical SS Exclusion Criteria: - Patients with recent trauma, - Patients with anticoagulation treatment, - Patients with pathological blood coagulation tests (activated partial thromboplastin time [aPTT] ratio=patient's aPTT/normal control aPTT] >1.2; or partial thromboplastin time [PTT] <75%) or platelet count (<100 x 109/L) - Patients with inflammatory CAA

Study Design


Related Conditions & MeSH terms


Intervention

Other:
None, pure observational study
None, pure observational study

Locations

Country Name City State
France CHU de Nîmes Nîmes

Sponsors (1)

Lead Sponsor Collaborator
Centre Hospitalier Universitaire de Nimes

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary MRI analyse : presence of cerebellar SS presence of cerebellar SS (Yes/No) baseline
Primary MRI analyse : Location of cerebellar SS Location of cerebellar SS (vermis, anterior lobe, posterior lobe) baseline
Primary MRI analyse : characteristics of cerebellar SS number of cerebellar sulci involved baseline
Primary MRI analyse : characteristics of cerebellar SS spatial relationship with cerebellar micro- and macrobleeds baseline
Primary MRI analyse : Presence of cerebellar macrobleeds Presence of cerebellar macrobleeds (Yes/No) baseline
Primary MRI analyse : Presence of cerebral macrobleeds Presence of cerebral macrobleeds (Yes/No) baseline
Primary MRI analyse : Characteristics of cerebral macrobleeds spatial relationship of cerebral macrobleeds with the TC [adjacent vs. non-adjacent to TC] baseline
Primary MRI analyse : Characteristics of cortical SS spatial relationship with TC (adjacent vs. non-adjacent to TC) baseline
Primary MRI analyse : hemosiderin presence of hemosiderin deposition along the TC. baseline
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