Clinical trial NCT06591312: Combining Aspirin With Ticagrelor or Clopidogrel in Minor Stroke or TIA
Official title: Combining Aspirin With Ticagrelor or Clopidogrel in Minor Stroke or TIA, a Randomized Controlled Trial
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: PHASE3
Conditions: Ischemic Stroke
Keywords: ticagrelor
clopidogrel
minor stroke
Egypt
Lead sponsor: Kafrelsheikh University
Sponsor class: OTHER
First posted: 2024-09-19
Enrollment: 900
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: The investigators will conduct our single-blinded randomized controlled trial, which will contain two arms; the clopidogrel arm will receive (a 300 mg loading dose during the first 24 hours of stroke onset, followed by 75 mg daily from the 2nd to the 90th day). The ticagrelor arm will receive (a 180 mg loading dose during the first 24 hours of stroke onset, followed by 90 mg twice daily from the 2nd to the 90th day). Both groups received an open-label loading dose of 300 mg aspirin and continued on open-label aspirin 75 mg daily
Primary purpose: TREATMENT

Brief summary: Along with the current clinical trial, the efficacy and safety of a 180 mg loading dose of ticagrelor administered within 24 hours of the first-ever minor stroke or TIA compared to 300 mg clopidogrel were assessed through NIHSS, mRS, and possible adverse effects.

Detailed description: The investigators conducted a single-blinded randomized controlled trial after the ethics committee of the faculty of medicine at Kafr el-Sheik University approved it.

The investigators got written informed consent from all eligible patients or their first order of kin before randomization.

The study will be composed of 2 arms ticagrelor arm, which consisted of 450 patients who received a 180mg loading dose followed by 90 mg twice daily from the 2nd to the 90th day), and the clopidogrel arm, consisting of 450 patients who received (a 300mg loading dose during the first 24 hours of stroke onset followed by 75mg once daily from the 2nd day to the 90th day),

Study Procedures:

Every patient in our study will undergo:

clinical workup: History, clinical assessment \& NIHSS were recorded on admission, day 7, and the Modified Rankin Scale as a follow-up after one week and 3 months.

Detection of Risk Factors \& Profiles:

Echocardiography TTE: in indicated patients ECG Monitoring: daily ECG monitoring will be performed in indicated patients. 3- Carotid Duplex: carotid duplex in indicated patients.

4- ESR \& Lipid Profile\& liver functions: All will be tested routinely for all patients.

Imaging Follow-UP Non-contrast CT brain on admission Day 2 MRI: after two days of admission, all the patients in this study will have a brain MRI (stroke protocol; T1W, T2W, FLAIR, DWI, T2 Echo Gradient, MRA of all intra-cerebral vessels).

CT brain: Any patient with unexplained clinical deterioration at any time throughout his/her hospital stay will be urgently imaged by CT.

Primary End Point:

The primary efficacy outcome was the rate of new stroke at 90 days, and the primary safety outcome was the rate of drug hemorrhagic complications using the PLATO bleeding definition.

• Secondary End Point: The secondary efficacy outcomes were to evaluate the rates of patients who achieved a significant reduction in NIHSS (decrease of four points or more) at the seventh day or discharge compared to baseline, the rates of a favorable outcome with (mRS = 0-2) after one week and after 90 days in a face-to-face interview in the outpatient clinic, rates of a composite of recurrent stroke, myocardial infarction and death due to vascular events after 90 days of follow-up, while the secondary safety outcome was the rate of treatment-related adverse effects assessed by a follow-up questionnaire

Eligibility criteria: Inclusion Criteria:

* the investigators included both genders with eligible ages ranging between 18-75 years, with the first-ever presentation with minor ischemic stroke or TIA who received antiplatelet treatment within the first 24 hours of the onset of ischemic stroke. Patients are not eligible for rt-PA treatment

Exclusion Criteria:

* The investigators excluded patients who had not been followed up on for 90 days after enrollment, those with NIHSS \< 5 or who had rapidly resolving symptoms before imaging results, and patients with a known history of persistent or recurrent CNS pathology (e.g., epilepsy, meningioma, multiple sclerosis, history of head trauma with a residual neurological deficit).

The investigators excluded patients who had clinical seizures at the onset of their stroke, as well as those who had symptoms of any major organ failure, active malignancies, or an acute myocardial infarction within the previous six weeks, and those who were on warfarin, regular ticagrelor during the week before admission, or chemotherapy within the previous year.

The investigators excluded patients with active peptic ulcers, GIT surgery, bleeding history within the last year, and those with a history of major surgery within the last three months.

The investigators ruled out our trial patients who had a known allergy to the study drugs and those with INR \> 1.4 or P.T. \>18 or blood glucose level \< 50 or \> 400 mg/DL or blood pressure \< 90/60 or \> 185/110 mmHg on admission or Platelets \< 100,000.

The investigators excluded pregnant and lactating patients and those with stroke due to venous thrombosis and stroke following cardiac arrest or profuse hypotension ineligible for our trial.

Patients with contraindications to the study drugs were excluded.

Primary outcomes:
measure: rate of new stroke
timeFrame: 90 days
measure: Rate of drug-related hemorrhagic complications
timeFrame: 90 days
Secondary outcomes:
measure: value of Modified Rankin Scale(mRS) at three months
timeFrame: 3 months
measure: rate of composite recurrent stroke, myocardial infarction, and death due to vascular events
timeFrame: 3 months
measure: rate of drug adverse effects
timeFrame: 3 months
Other outcomes:
Locations:
city: Kafr Ash Shaykh
country: Egypt
facility: Kafr Elsheikh University Hospital
Study officials:
affiliation: neurology department kafr el-sheikh university
name: mohamed G. Zeinhom, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Meyer DM, Albright KC, Allison TA, Grotta JC. LOAD: a pilot study of the safety of loading of aspirin and clopidogrel in acute ischemic stroke and transient ischemic attack. J Stroke Cerebrovasc Dis. 2008 Jan-Feb;17(1):26-9. doi: 10.1016/j.jstrokecerebrovasdis.2007.09.006.
citation: Gachet C, Stierle A, Cazenave JP, Ohlmann P, Lanza F, Bouloux C, Maffrand JP. The thienopyridine PCR 4099 selectively inhibits ADP-induced platelet aggregation and fibrinogen binding without modifying the membrane glycoprotein IIb-IIIa complex in rat and in man. Biochem Pharmacol. 1990 Jul 15;40(2):229-38. doi: 10.1016/0006-2952(90)90683-c.