NCT03969732

Brief Summary

By combination of plasma (Aβ40, Aβ42, total tau, and phosphorylated tau, etc.), genetic (ApoE ε2 or ε4 allele), MRI (cerebral perfusion, microbleeds, cortical superficial siderosis, enlarged perivascular space, etc.) and PET imaging (amyloid and tau) biomarkers, the study aims to

  1. 1.Enhance the diagnostic potentials of the radiological biomarkers by combining MRI and amyloid PET in CAA patients.
  2. 2.Investigate the biological pathogenesis in CAA patients using the less invasive plasma biomarkers and to correlate with structural and function imaging, including MRI, amyloid and tau imaging.
  3. 3.Study the characteristics of long-term progression of amyloid deposition in CAA patients using the radiological, biochemical and genetic biomarkers.
  4. 4.Study the prognosis predicting markers.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
240

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Sep 2018

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 27, 2018

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

May 29, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 31, 2019

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2022

Completed
Last Updated

March 12, 2021

Status Verified

March 1, 2021

Enrollment Period

3.8 years

First QC Date

May 29, 2019

Last Update Submit

March 10, 2021

Conditions

Keywords

Strokeintracerebral hemorrhagecerebral amyloid angiopathyamyloid PETtau PETMRIApoE

Outcome Measures

Primary Outcomes (1)

  • PET imaging

    PET data will reconstruct with ordered set expectation maximization, corrected for attenuation, and each frame will be evaluated to verify adequate count statistics and absence of head motion.

    in 3 days

Study Arms (1)

amyloid PET、T807 PET

EXPERIMENTAL

PET/CT

Drug: 1. amyloid PET;2. T807 PET

Interventions

1. Dynamic PET acquisition for 60 minutes will be acquired after injection of 10 mCi 11C-PiB (39 frames: 8 x 15 seconds, 4 x 60 seconds, 27 x120 seconds). 2. Dynamic PET imaging 3D acquisition will be acquired 80 minutes after injection of 10 mCi 18F-T807 (4 x 300 seconds)

amyloid PET、T807 PET

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ICH:
  • Age:above 20 years old.
  • Evidence of intraparenchymal hemorrhage on CT or MRI.
  • Patient agrees to participate in the study and receive neurophsychological examinations, genetic and biochemical markers test, MRI and PET imaging.
  • AD:
  • Age:above 20 years old.
  • Patients who fulfills the clinical criteria of possible or probable Alzheimer's disease (AD).51
  • Patient agrees to participate in the study and receive neurophsychological examinations, genetic and biochemical markers test, MRI and PET imaging.
  • Control:
  • Age:above 20 years old.
  • Patient agrees to participate in the study and receive neurophsychological examinations, genetic and biochemical markers test, MRI and PET imaging.

You may not qualify if:

  • ICH:
  • patients with potential causes of hemorrhage including trauma, structural lesion, brain tumor, or coagulopathy due to systemic disease or medication.
  • Patients could not receive the PET and MRI studies, including but not limited to poor cooperative agitation impeding adequate study, allergy to contrast medium, hemodynamic instability, implantation of cardiac pacemaker, past history of receiving aneurysm clipping, panic mood to MRI study, impaired kidney function.
  • Patients with pregnancy or recently having a plan for pregnancy.
  • Patients with breast feeding or recently having a plan for breast feeding.
  • Patients with history of allergy to 11C-PiB and 18F-T807, or severe allergy history.
  • Patient or family who does not agree to participate in the study.
  • patient with high risk by doctor evaluate.
  • AD:
  • Patients could not receive the PET and MRI studies, including but not limited to poor cooperative agitation impeding adequate study, allergy to contrast medium, hemodynamic instability, implantation of cardiac pacemaker, past history of receiving aneurysm clipping, panic mood to MRI study, impaired kidney function.
  • Patients with pregnancy or recently having a plan for pregnancy.
  • Patients with breast feeding or recently having a plan for breast feeding.
  • Patients with history of allergy to 11C-PiB and 18F-T807, or severe allergy history.
  • Patient or family who does not agree to participate in the study.
  • patient with high risk by doctor evaluate.
  • +8 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan Univeristy Hospital

Taipei, 100, Taiwan

RECRUITING

MeSH Terms

Conditions

Cerebral Amyloid AngiopathyIntracranial HemorrhagesAlzheimer DiseaseStrokeCerebral Hemorrhage

Condition Hierarchy (Ancestors)

Cerebral Arterial DiseasesIntracranial Arterial DiseasesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesAmyloidosisProteostasis DeficienciesMetabolic DiseasesNutritional and Metabolic DiseasesHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsDementiaTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 29, 2019

First Posted

May 31, 2019

Study Start

September 27, 2018

Primary Completion

July 31, 2022

Study Completion

July 31, 2022

Last Updated

March 12, 2021

Record last verified: 2021-03

Data Sharing

IPD Sharing
Will not share

Locations