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F-18-AV-45 Uptake, Spot Sign Presence and Cerebral Amyloid Angiopathy (CAA) in Primary Intracranial Hemorrhage (ICH)

NCT01382849 · Status: WITHDRAWN · Type: OBSERVATIONAL

Last updated 2014-11-19

No results posted yet for this study

Summary

Florbetapir F 18 is an experimental radioactive drug that may allow doctors to image changes in the brain using a PET (Positron Emission Tomography) scanner. The purpose of this study is to evaluate the imaging characteristics of, Florbetapir F 18 (also known as 18F-AV-45) in patients who have previously undergone bleeding in their brains. Florbetapir F 18 binds to amyloid-ß peptide (Aß) that accumulates in the brains of patients with bleeding. These accumulations are called amyloid plaques and when extensive are labeled cerebral amyloid angiopathy (CAA). Florbetapir F 18 sticks to the amyloid plaques in the brain and emits a low level of gamma rays which can be detected by a PET camera.

MRI detected microbleeds have been identified as markers of clinically silent hemorrhage from bleeding-prone vessels. Another imaging marker of vessel damage and risk of bleeding is the spot sign (SS). Finally, certain genetic signatures (ApoE genotype) have been shown to be associated with Aß deposition in the brain or predispose patients to higher risks of bleeding. This research study will explore the interactions of these factors and understand the physiology of intracerebral bleeding.

Conditions

  • Cerebral Amyloid Angiopathy

Sponsors & Collaborators

  • Sunnybrook Health Sciences Centre

    lead OTHER

Principal Investigators

  • Richard Aviv · Sunnybrook Health Sciences Centre

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-08-31
Primary Completion
2012-08-31
Completion
2012-08-31

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01382849 on ClinicalTrials.gov