AzTrials
AzTrials

Acute Ischemic StrokePhase 4NCT07290751

Intravenous Thrombolysis Combined With Tirofiban in Acute Ischemic Stroke

A Phase 4 study testing Tirofiban in people with Acute Ischemic Stroke, run by Beijing Anzhen Hospital at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This multicenter, prospective, double-blind, placebo-controlled, randomized trial (ANGEL-DRUG2) aims to evaluate the efficacy and safety of intravenous tirofiban following intravenous thrombolysis in patients with acute ischemic stroke who show insufficient neurological improvement after initial treatment. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Acute Ischemic Stroke
What is being tested?
Tirofiban
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
976 participants
Where
1 siteChina
Study dates
11 Nov 2025to 31 Dec 2026
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥18 years.
  • Pre-stroke modified Rankin Scale (mRS) score of 0-1.
  • Acute ischemic stroke symptoms within 4.5 hours of last known well time.
  • Baseline National Institutes of Health Stroke Scale (NIHSS) score ≥4.
  • Poor neurological improvement 1 hour after intravenous thrombolysis, defined as NIHSS decrease <2 points, or neurological worsening within 1 hour, defined as NIHSS increase ≥1 point.
  • Not planned for or not eligible for endovascular treatment.
  • Subject or legally authorized representative can provide written informed consent.

Who cannot join

  • Evidence of intracranial hemorrhage on imaging before randomization.
  • Non-ischemic intracranial pathologies, such as vascular malformation, aneurysm, tumor, abscess, or demyelinating disease.
  • Large or medium vessel stenosis requiring thrombectomy or intra-arterial thrombolysis.
  • Contraindications to tirofiban, including but not limited to:Known hypersensitivity to tirofiban; Severe hepatic dysfunction (ALT >2× ULN or AST >2× ULN); Severe renal dysfunction (serum creatinine >1.5× ULN); Advanced heart failure (NYHA class III-IV); Coagulation disorders or history of systemic bleeding; History of thrombocytopenia or neutropenia; Prior drug-induced hematologic disease or liver dysfunction; Leukopenia (<2×10^9/L) or platelet count <100×10^9/L.
  • Use of tirofiban or other GP IIb/IIIa inhibitors before randomization, or planned use of such agents after randomization.
  • Definite cardioembolic source, including but not limited to: chronic or paroxysmal atrial fibrillation, sick sinus syndrome, mitral stenosis, mechanical prosthetic heart valves, infective endocarditis, history of intracardiac thrombus, myocardial infarction within 3 months, dilated cardiomyopathy, spontaneous left atrial echo contrast, or left ventricular ejection fraction <30%.
Show all 10Show fewer
  • Pregnancy or lactation.
  • Expected survival <6 months.
  • Pre-existing neurological or psychiatric disorders that may interfere with outcome assessment.
  • Unlikely to complete 90-day follow-up.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site, 1 recruiting
  • Beijing Anzhen Hospital,Capital Medical University

    Beijing, Beijing Municipality, 101118

    Recruiting

Other trials in China

About this study

Official title: Intravenous Thrombolysis Combined With Tirofiban in Acute Ischemic Stroke: A Multicenter, Prospective, Double-Blind, Placebo-Controlled, Randomized Controlled Trial

This multicenter, prospective, double-blind, placebo-controlled, randomized trial (ANGEL-DRUG2) aims to evaluate the efficacy and safety of intravenous tirofiban following intravenous thrombolysis in patients with acute ischemic stroke who show insufficient neurological improvement after initial treatment. Eligible patients (≥18 years, baseline NIHSS ≥4, within 4.5 hours from last known well) will be randomized 1:1 to receive either tirofiban or placebo infusion for 24 hours, followed by standard oral antiplatelet therapy. The primary endpoint is the proportion of patients achieving functional independence (mRS 0-2) at 90 days. Secondary outcomes include changes in NIHSS score, vessel recanalization, infarct volume, distribution of mRS scores, recurrent stroke, and health-related quality of life. Safety outcomes focus on symptomatic intracranial hemorrhage and all-cause mortality. Approximately 976 patients will be enrolled across 30 sites in China.

Read the detailed description

Acute ischemic stroke (AIS) is a leading cause of death and disability worldwide. Intravenous thrombolysis (IVT) and endovascular therapy (EVT) are guideline-recommended treatments, but many patients continue to experience unsatisfactory neurological recovery after IVT alone. Early antiplatelet therapy is recommended as adjunctive management, and tirofiban, a selective and reversible intravenous glycoprotein IIb/IIIa receptor inhibitor, has shown promise in reducing platelet aggregation and thrombus formation without significantly increasing symptomatic intracranial hemorrhage. However, robust evidence regarding its efficacy and safety in AIS patients with poor neurological improvement after IVT is lacking.

ANGEL-DRUG2 is designed to fill this knowledge gap. This trial will enroll 976 patients at 30 centers who present with acute ischemic stroke, have received IVT within 4.5 hours of onset, and demonstrate poor or worsening neurological improvement within 1 hour post-IVT (defined as NIHSS score decrease <2 or increase ≥1). Patients will be randomized in a 1:1 ratio, stratified by center, to receive either tirofiban infusion (0.4 μg/kg/min for 30 minutes, then 0.1 μg/kg/min for 23.5 hours) or placebo (normal saline) infusion of the same regimen. Both groups will be transitioned at 20 hours to standard oral antiplatelet therapy (aspirin and/or clopidogrel).

The primary efficacy endpoint is the proportion of patients achieving a modified Rankin Scale (mRS) score of 0-2 at 90±7 days. Secondary efficacy endpoints include NIHSS change at 36±12 hours, vessel recanalization on CTA/MRA, infarct volume, distribution of mRS scores at multiple timepoints, recurrent stroke within 90 days, and EQ-5D-5L quality-of-life scores. Safety endpoints include symptomatic intracranial hemorrhage within 48 hours (Heidelberg criteria), any intracranial hemorrhage, and all-cause mortality at 90 days.

This rigorously designed study will provide high-quality evidence regarding whether tirofiban, when added to IVT in AIS patients with poor early response, can improve functional outcomes without unacceptable safety risks.

Being tested
Tirofiban, Placebo (0.9% normal saline)
Keywords
stroke, tirofiban, thrombolysis
Medical subject headings
Ischemic Stroke, Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • TirofibanDrug

    After intravenous thrombolysis, if neurological improvement is insufficient (NIHSS score decrease <2 within 1 hour or NIHSS increase ≥1), tirofiban infusion is initiated within 1 hour. The regimen consists of 0.4 μg/kg/min for 30 minutes, followed by 0.1 μg/kg/min for 23.5 hours (total 24 hours). At the 20th hour of infusion, oral antiplatelet therapy (aspirin 100 mg once daily and/or clopidogrel 75 mg once daily) is initiated, overlapping with tirofiban for 4 hours (bridge therapy). At 24 hours, tirofiban infusion is completed, and patients continue oral antiplatelet therapy per protocol.

  • Placebo (0.9% normal saline)Other

    Matched normal saline infusion using the same dosing schedule and pump rates as the tirofiban arm (0.4 μg/kg/min for 30 minutes, then 0.1 μg/kg/min for 23.5 hours; total 24 hours). At the 20th hour of infusion, oral antiplatelet therapy (aspirin 100 mg once daily and/or clopidogrel 75 mg once daily) is initiated, overlapping with placebo infusion for 4 hours (bridge therapy). At 24 hours, placebo infusion is completed, and patients continue oral antiplatelet therapy per protocol.

Study groups in NCT07290751
Study groupRoleWhat they receive
Arm A - TirofibanExperimentalNot described
Receives: Drug: Tirofiban
Arm B - PlaceboPlacebo comparatorNot described
Receives: Other: Placebo (0.9% normal saline)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of patients with mRS 0-2 at 90 days

    Proportion of patients with Modified Rankin Scale (mRS) 0-2, Modified Rankin Scale(0-6), A lower MRS score indicates better functional status for the patient.

    Measured: 90±7 days post-randomization

  2. Symptomatic Intracranial Hemorrhage (sICH) within 48 hours

    Heidelberg Bleeding Classification with clinical worsening criteria.

    Measured: Randomization to 48 hours

Secondary outcomes (10)
  1. Change in NIHSS from baseline to 36±12 hours

    Change in National Institute of Health stroke scale score from baseline.The NIH Stroke Scale (NIHSS) score ranges from 0 to 42 points, with lower scores indicating better neurological function

    Measured: 36±12 hours post-randomization

  2. Vascular recanalization rate assessed by CT/MR angiography

    Vascular recanalization rate assessed by CT/MR angiography

    Measured: 36±12 hours post-randomization

  3. Change in infarct volume at 7±3 days/discharge

    Change in infarct volume

    Measured: 7±3 days post-randomization or discharge

  4. mRS distribution

    Modified Rankin Scale(0-6), A lower MRS score indicates better functional status for the patient.

    Measured: 7±3 days/discharge;90±7 days post-randomization

  5. Proportion with mRS 0-1 at 90 days

    Proportion of patients with Modified Rankin Scale (mRS) 0-1, Modified Rankin Scale(0-6), A lower MRS score indicates better functional status for the patient.

    Measured: 90±7 days

  6. Proportion with mRS 0-3 at 90 days

    Proportion of patients with Modified Rankin Scale (mRS) 0-3, Modified Rankin Scale(0-6), A lower MRS score indicates better functional status for the patient

    Measured: 90±7 days

  7. Stroke recurrence at 90 ± 7 days.

    Stroke recurrence

    Measured: 90±7 days post-randomization

  8. EQ-5D-5L score at 90±7 days

    The EuroQol 5-Dimension 5-Level Utility Score (EQ-5D-5L utility score) ranges from -0.594 to 1.000 (Chinese value set), assessing health-related quality of life, with higher scores indicating better health status.

    Measured: 90±7 days

  9. Any Intracranial Hemorrhage within 48 hours

    Heidelberg Bleeding Classification with clinical worsening criteria.

    Measured: Randomization to 48 hours

  10. All-cause mortality at 90 days

    All-cause mortality

    Measured: 90±7 days post-randomization

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Dec 2025
  2. Study start11 Nov 2025
  3. Primary completion30 Oct 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
976 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07290751
Sponsor's protocol ID
2025-013
Status last verified
Dec 2025
First submitted
29 Aug 2025
Last updated
23 Dec 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hilkens NA, Casolla B, Leung TW, de Leeuw FE. Stroke. Lancet. 2024 Jun 29;403(10446):2820-2836. doi: 10.1016/S0140-6736(24)00642-1. Epub 2024 May 14.

    PubMed 38759664
  • Powers WJ, Rabinstein AA, Ackerson T, Adeoye OM, Bambakidis NC, Becker K, Biller J, Brown M, Demaerschalk BM, Hoh B, Jauch EC, Kidwell CS, Leslie-Mazwi TM, Ovbiagele B, Scott PA, Sheth KN, Southerland AM, Summers DV, Tirschwell DL. Guidelines for the Early Management of Patients With Acute Ischemic Stroke: 2019 Update to the 2018 Guidelines for the Early Management of Acute Ischemic Stroke: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association. Stroke. 2019 Dec;50(12):e344-e418. doi: 10.1161/STR.0000000000000211. Epub 2019 Oct 30.

    PubMed 31662037
  • Berge E, Whiteley W, Audebert H, De Marchis GM, Fonseca AC, Padiglioni C, de la Ossa NP, Strbian D, Tsivgoulis G, Turc G. European Stroke Organisation (ESO) guidelines on intravenous thrombolysis for acute ischaemic stroke. Eur Stroke J. 2021 Mar;6(1):I-LXII. doi: 10.1177/2396987321989865. Epub 2021 Feb 19.

    PubMed 33817340
  • Wang C, Yi X, Zhang B, Liao D, Lin J, Chi L. Clopidogrel plus aspirin prevents early neurologic deterioration and improves 6-month outcome in patients with acute large artery atherosclerosis stroke. Clin Appl Thromb Hemost. 2015 Jul;21(5):453-61. doi: 10.1177/1076029614551823. Epub 2014 Sep 23.

    PubMed 25248816
  • Guo ZN, Zhang KJ, Zhang P, Qu Y, Abuduxukuer R, Nguyen TN, Chen HS, Yang Y. Early tirofiban administration after intravenous thrombolysis in acute ischemic stroke (ADVENT): Study protocol of a multicenter, randomized, double-blind, placebo-controlled clinical trial. Eur Stroke J. 2024 Jun;9(2):510-514. doi: 10.1177/23969873231225069. Epub 2024 Jan 9.

    PubMed 38196129
  • Liu R, Liang Z, Li W, Zhan Y, Xu L, Yang S, Zheng G, Jiang L, Xie L, Sun Z, Hu Y. Adding Tirofiban on Top of Recombinant Tissue Plasminogen Activator May Improve Clinical Outcome in Acute Stroke Patients. J Stroke. 2024 Jan;26(1):121-124. doi: 10.5853/jos.2023.02250. Epub 2024 Jan 30. No abstract available.

    PubMed 38326710
  • Liang Z, Zhang J, Huang S, Yang S, Xu L, Xiang W, Zhang M. Safety and efficacy of low-dose rt-PA with tirofiban to treat acute non-cardiogenic stroke: a single-center randomized controlled study. BMC Neurol. 2022 Jul 27;22(1):280. doi: 10.1186/s12883-022-02808-w.

    PubMed 35897006
  • Yang M, Huo X, Miao Z, Wang Y. Platelet Glycoprotein IIb/IIIa Receptor Inhibitor Tirofiban in Acute Ischemic Stroke. Drugs. 2019 Apr;79(5):515-529. doi: 10.1007/s40265-019-01078-0.

    PubMed 30838514
  • Jiao Y, Wang X, Guan Y, Wang X, Li Z, Xiang X, Zhang Z. Therapeutic Efficacy of Tirofiban Combined With Thrombus Aspiration and Stent Thrombectomy in the Treatment of Large Vessel Occlusion Ischemic Stroke. Neurologist. 2025 May 1;30(3):140-144. doi: 10.1097/NRL.0000000000000603.

    PubMed 39648705
  • Zhang Y, Zhang QQ, Fu C, Wang L, Zhang GQ, Cao PW, Chen GF, Fu XM. Clinical efficacy of tirofiban combined with a Solitaire stent in treating acute ischemic stroke. Braz J Med Biol Res. 2019;52(10):e8396. doi: 10.1590/1414-431X20198396. Epub 2019 Sep 16.

    PubMed 31531525
  • Higgins JPT, Thomas J, Chandler J, et al (editors). Cochrane Handbook for Systematic Reviews of Interventions version 6.4 (updated August 2023). Cochrane, 2023. Available from www.training.cochrane.org/handbook.

  • de Almeida Monteiro G, Leite M, Goncalves OR, Ferreira MY, Mutarelli A, Marinheiro G, Araujo B, Leal PRL, Ribeiro EML, Figueiredo EG, Telles JPM. Efficacy and safety of intravenous tirofiban combined with reperfusion therapy versus reperfusion therapy alone in acute ischemic stroke: a meta-analysis of randomized controlled trials. J Thromb Thrombolysis. 2025 Apr;58(4):526-537. doi: 10.1007/s11239-025-03094-2. Epub 2025 Apr 1.

    PubMed 40167884

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Tirofiban in people with Acute Ischemic Stroke, run by Beijing Anzhen Hospital at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 23 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Xiaochuan Huo (+8613716292262, huoxiaochuan@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of patients with mRS 0-2 at 90 days (time frame: 90±7 days post-randomization). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07290751, which also lists 12 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Dec 2025.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in