NCT05300997

Brief Summary

In adult patients presenting to emergency departments within 24 hours of symptom onset with suspected acute stroke, we aim:

  1. 1.to identify early brain- and pathology-specific circulating, whole blood, plasma and serum panorOmic biomarkers that enable early acute stroke detection, diagnosis, dynamics, differentiation, monitoring, prediction and prognosis.
  2. 2.to identify early brain- and pathology-specific, panorOmic biomarkers in saliva that enable early acute stroke detection, diagnosis, dynamics, differentiation, monitoring, prediction and prognosis.
  3. 3.to derive biomarker platforms of models for early acute stroke detection, diagnosis, dynamics, differentiation, monitoring, prediction and prognosis
  4. 4.to validate these models in independent and external datasets

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
650

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started May 2022

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

First Submitted

Initial submission to the registry

February 25, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

March 29, 2022

Completed
1 month until next milestone

Study Start

First participant enrolled

May 1, 2022

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2025

Completed
Last Updated

June 3, 2024

Status Verified

May 1, 2024

Enrollment Period

3.1 years

First QC Date

February 25, 2022

Last Update Submit

May 31, 2024

Conditions

Keywords

acute strokeemergency medicinediagnosticsmoleculargenomics and transcriptomicsproteomics

Outcome Measures

Primary Outcomes (1)

  • Differentiation of stroke from non-stroke in patients with suspected stroke

    Stroke is defined as either a) the presence of intracerebral haemorrhage with imaging; or b) intracerebral ischaemia with imaging; or c) clinical features of stroke in the absence of positive imaging persisting after 24 hours (cryptogenic stroke). Cryptogenic stroke is defined according to TOAST as stroke not caused by large artery atherosclerosis, cardioembolism, small vessel occlusion and stroke of other aetiology. Non-stroke includes TIA and stroke mimics. TIA is defined as the resolution of stroke-like symptoms within 24 hours of onset and the absence of acute cerebral abnormalities on CT/MRI. Stroke mimics are defined as diseases caused by neurologic symptoms that resemble a stroke. For example, seizure, complex migraines, demyelinating disease, meningitis, glucose level variations and metabolic disorders (hypoglycemia), tumors, non-cerebrovascular diseases such as epilepsy, and dementia.

    Up to 24 hours

Secondary Outcomes (9)

  • Differentiation of Transient Ischaemic Attack (TIA) from Transient non-neurological events (TNE) in patients with suspected acute stroke

    Up to 24 hours

  • Differentiation of acute ischaemic stroke(AIS) from haemorrhagic stroke(HS) in patients with suspected acute stroke before and after imaging

    Up to 24 hours

  • Differentiation of AIS-LVAD from AIS-SVD from AIS-CE in patients with suspected acute stroke

    Up to 24 hours

  • Differentiation of stroke of known origin (AIS/HS) from cryptogenic stroke in patients with suspected acute stroke

    Up to 24 hours

  • Differentiation of early stroke onset (<4.5 hours) from late stroke onset (>4.5 hours)

    Up to 24 hours

  • +4 more secondary outcomes

Study Arms (6)

Haemorrhagic Stroke [N=100]

Haemorrhagic stroke subjects presenting within 24 hours from symptom onset will have serial whole blood and saliva drawn a) in the emergency department (if available) or hospital within 24 hours of the onset of symptoms; b) 18 hours +/- 6 hours from symptom onset (if available); and c) 30 hours+/- 6 hours from symptom onset (if available).

Diagnostic Test: Biomarker blood draw and saliva collection

Acute Ischaemic Stroke [N=300]

Acute Ischaemic stroke subjects presenting within 24 hours from symptom onset will have serial whole blood and saliva drawn a) in the emergency department (if available) or hospital within 24 hours of the onset of symptoms; b) 18 hours +/- 6 hours from symptom onset (if available); and c) 30 hours+/- 6 hours from symptom onset (if available).

Diagnostic Test: Biomarker blood draw and saliva collection

Stroke of uncertain origin [N=45]

Stroke of uncertain origin subjects presenting within 24 hours from symptom onset will have serial whole blood and saliva drawn a) in the emergency department (if available) or hospital within 24 hours of the onset of symptoms; b) 18 hours +/- 6 hours from symptom onset (if available); and c) 30 hours+/- 6 hours from symptom onset (if available).

Diagnostic Test: Biomarker blood draw and saliva collection

Transient Ischemic Attack (TIA) [N=75]

TIA subjects presenting within 24 hours from symptom onset will have serial whole blood and saliva drawn a) in the emergency department (if available) or hospital within 24 hours of the onset of symptoms; b) 18 hours +/- 6 hours from symptom onset (if available); and c) 30 hours+/- 6 hours from symptom onset (if available).

Diagnostic Test: Biomarker blood draw and saliva collection

Stroke Mimics [N=30]

Stroke Mimics subjects presenting within 24 hours from symptom onset will have serial whole blood and saliva drawn a) in the emergency department (if available) or hospital within 24 hours of the onset of symptoms; b) 18 hours +/- 6 hours from symptom onset (if available); and c) 30 hours+/- 6 hours from symptom onset (if available).

Diagnostic Test: Biomarker blood draw and saliva collection

Control Subjects [N=100]

Control group subjects, if they agree, will have serial whole blood and saliva drawn a) in the emergency department (if available) or hospital on day 1; b) 18 hours +/- 6 hours after sample 1 (if available); and c) 30 hours+/- 6 hours after sample 1 (if available).

Diagnostic Test: Biomarker blood draw and saliva collection

Interventions

Three peripheral 10mL blood sample (if available) Three 1 - 3mL salivary samples (if available)

Acute Ischaemic Stroke [N=300]Control Subjects [N=100]Haemorrhagic Stroke [N=100]Stroke Mimics [N=30]Stroke of uncertain origin [N=45]Transient Ischemic Attack (TIA) [N=75]

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Suspected stroke patients presenting to emergency department within 24 hours of symptom onset.

You may qualify if:

  • Patients eligible for enrolment include:
  • Adults ≥18 years of age.
  • Suspected acute stroke. Defined as either FAST-positive, or LAPSS-positive or ROSIER\>0
  • Within 24 hours of symptom onset.
  • Informed consent.
  • Control subjects will be drawn from two groups:
  • Non-neurologic patients who are matched with TIA and stroke cases (AIS, HS) for age, race, gender and smoking plus one or more of the following vascular risk factors: diabetes, hypertension, atrial fibrillation, hyperlipidaemia.
  • Relatives or accompanying friends.
  • Note that we will include and collect samples from the following cases if they present as suspected stroke and are recruited \<24 hours from symptom onset.
  • Any central nervous system infection, i.e. meningitis or encephalitis in the past 30 days
  • Any form of head trauma, stroke or intracranial haemorrhage in the past 30 days
  • Known primary or metastatic cancer involving the brain
  • Active cancer is defined as a diagnosis of cancer, within 6 months before enrollment, any treatment for cancer within the previous 6 months, or recurrent or metastatic cancer.
  • Autoimmune diseases: such as lupus, rheumatoid arthritis, Crohn's disease, ulcerative colitis
  • Active infectious diseases (e.g. HIV/AIDS, hepatitis C)
  • +1 more criteria

You may not qualify if:

  • Clear onset of acute symptoms \>24 hours.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hong Kong University

Hong Kong, China

RECRUITING

Related Publications (17)

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Biospecimen

Retention: SAMPLES WITH DNA

Liquid biopsy samples will be taken at three time intervals between stroke onset (Time 0) and 36 hours later i.e. i) in the ED at 0+x hours; ii) at 18±6 hours, and iii) 30±6 hours. Liquid biopsy for retention: • Whole Blood samples, Red blood cell effluent, Plasma, Serum, White cell pellet, Saliva (for genomic, epigenomic, transcriptomic and proteomic studies). Biomarkers under investigation: • DNA, RNA, Proteomics, Metabolomics, Metabolomics,Lipidomics gene expression in peripheral blood and saliva.

MeSH Terms

Conditions

Ischemic StrokeHemorrhagic StrokeIschemic Attack, TransientEmbolic StrokeEmbolismThrombosisAtrial FibrillationInfarction, Anterior Cerebral ArteryInfarction, Middle Cerebral ArteryStroke

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesBrain IschemiaEmbolism and ThrombosisArrhythmias, CardiacHeart DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsCerebral InfarctionBrain InfarctionCerebral Arterial DiseasesIntracranial Arterial DiseasesInfarctionIschemiaNecrosis

Study Officials

  • Timothy H Rainer, MD

    The University of Hong Kong

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Timothy H Rainer, MD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Target Duration
1 Year
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Emergency Medicine

Study Record Dates

First Submitted

February 25, 2022

First Posted

March 29, 2022

Study Start

May 1, 2022

Primary Completion

May 30, 2025

Study Completion

May 30, 2025

Last Updated

June 3, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations