Search for Biomarkers of Infection and Inflammation in Patients With Acute Stroke.

NCT ID: NCT03812666

Last Updated: 2023-11-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-01-15

Study Completion Date

2025-07-01

Brief Summary

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This study will look for new biomarkers of infection and evaluate current biomarkers of infection in stroke patients. Patients with acute stroke will be monitored with daily blood samples for seven days and by clinical examination to detect infections for 10 days.

Detailed Description

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Rationale: Stroke is one of the leading causes of death globally, and infections after stroke contribute to a large part of the stroke-related mortality. The current study, which has a prospective, observational design, constitutes the second phase out of four in the Inflammatory Biomarkers In Stroke (IBIS) project, of which the overall goal is to enable early treatment of post-stroke infections.

Aim: To develop a combined clinical and molecular biological signature for early detection of pneumonia in patients with stroke.

Design: Prospective nested case control study

Methods:Patients (n=200) with acute stroke will be monitored with clinical examinations for ten days and by daily blood samples for seven days. When cases of pneumonia have been established, samples and examination results from days preceding overt pneumonia will be compared to samples from similar patients that did not develop pneumonia.

Outcome: Using proteomic and metabolomic methods, novel markers of upcoming pneumonia after stroke will be sought. Such laboratory markers will be combined with current biomarkers (such as C-reactive protein and procalcitonin) and data from clinical examinations, with the aim of constructing a biological signature that enables early detection of pneumonia.

Conditions

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Stroke, Acute Pneumonia, Bacterial

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Severe stroke

Patients with severe (defined as NIHSS score of \> 10) acute stroke, either ischemic or hemorrhagic. (n= 150)

No interventions assigned to this group

Moderately stroke

Patients with moderately severe (defined as NIHSS score of \> 5 but \< 11) acute stroke, either ischemic or hemorrhagic. (n= 25)

No interventions assigned to this group

Mild stroke

Patients with mild (defined as NIHSS score of \<6) acute stroke, either ischemic or hemorrhagic. (n= 25)

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Symptoms and radiology consistent with acute cerebral infarction or atraumatic intracerebral hemorrhage.
* National Institutes of Health Stroke Scale (NIHSS) ≤5; mild stroke (n=25), NIHSS ≤10 and ≥ 6; moderate stroke (n=25) or NIHSS ≥ 11; severe stroke (n=150)
* Onset of symptoms less than 48 hours before first study blood sampling.

Exclusion Criteria

* Symptoms and radiology consistent with acute cerebral infarction but full reversal of symptoms within 24 hours of onset. (i.e. transient ischemic attack, TIA)
* Hemoglobin less than 90 g/l.
* Ongoing inflammatory disease, such as rheumatoid arthritis or active inflammatory bowel disease.
* Inability to undergo MRI scan (only patients with NIHSS ≤10 will be excluded by this criteria)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Örebro University, Sweden

OTHER

Sponsor Role collaborator

Jakob Ström

OTHER

Sponsor Role lead

Responsible Party

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Jakob Ström

Jakob Ström, MD, PhD, resident of neurology and Associate Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Jakob Ström, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Region Örebro County

Locations

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Örebro University Hospital

Örebro, Örebro County, Sweden

Site Status

Countries

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Sweden

References

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Sjolin K, Royter B, Forgo B, Aulin J, Kultima K, Lindback J, Strom JO, Burman J. Plasma Profiles of Neuroglial Injury Biomarkers after Ischemic Stroke. Transl Stroke Res. 2025 Sep 3. doi: 10.1007/s12975-025-01380-y. Online ahead of print.

Reference Type DERIVED
PMID: 40900222 (View on PubMed)

Other Identifiers

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2018/288

Identifier Type: OTHER

Identifier Source: secondary_id

247991

Identifier Type: -

Identifier Source: org_study_id

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