Biological Dating of Cerebral Ischemia With GST-π/PRDX1 to Detect Patients With Stroke of Unknown… (NCT03364296) | Clinical Trial Compass
CompletedNot Applicable
Biological Dating of Cerebral Ischemia With GST-π/PRDX1 to Detect Patients With Stroke of Unknown Onset Within the Therapeutic Window of Thrombolysis
France935 participantsStarted 2018-10-15
Plain-language summary
The FLAG1 study will assess the diagnostic performance of biomarkers Glutathion S-Transferase-π (GST-π) and Peroxyredoxin 1 (PRDX1) to identify cerebral infarction of less than 4,5 hours in a population of patients with neurological deficiency of less than 12 hours.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Patients over 18 years old
* Patients with symptoms consistent with stroke and a National Institute of Health Stroke Score ≥3 at the inclusion time
* Time symptom onset ≤ 24 hours at inclusion:
* For patients with time of symptom onset is \<4.5h at inclusion, the time of symptom onset has to be precisely known, with a margin of error not exceeding 30 minutes (through patient or witness interview)
* For patients with time of symptom onset is \>4.5h at inclusion, knowledge of precise time of symptom onset is not required. For these patients, to ensure onset-to-inclusion time is between 4.5 and 24 hours at inclusion:
* last time patient presented no deficit must be less than 24 hours,
* symptoms must have been first recognized more than 4.5 hours before blood draw.
* Possibility to perform MRI within the 30 minutes following blood collection
* Person affiliated to or beneficiary of a social security plan
Exclusion Criteria:
* Persons referred in articles L.1121-5, L.1121-7, L.1121-8 and L.1122-2 of the French Public Health Code: Pregnant, parturient or breastfeeding woman ; Minor person (non-emancipated) ; Adult person under legal protection (any form of public guardianship) ; Adult person incapable of giving consent and not under legal protection.
* Persons deprived of liberty for judicial or administrative decision.
* Persons subject to psychiatric care under articles L.3212-1 and L.3213-1 of the French Public Health Code.
* Known cancer in progre…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Time (<4.5 hours) between cerebral infarction onset and blood sample for determination for GST-π level
Timeframe: Population will be dichotomized in patients with blood sample performed <4.5 hours and >4.5 hours after stroke onset to determine diagnostic performance of GST-π plasmatic level to identify cerebral infarction of less than 4.5 hours.
2
Time (<4.5 hours) between cerebral infarction onset and blood sample for determination for PRDX1 levels
Timeframe: Population will be dichotomized in patients with blood sample performed <4.5 hours and >4.5 hours after stroke onset to determine diagnostic performance of PRDX1 plasmatic level to identify cerebral infarction of less than 4.5 hours