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Updated: Jul 25, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
Published on: January 18, 2018
Design of the Trial of Org 10172 in Acute Stroke Treatment (TOAST)
H P Adams1, R F Woolson, W R Clarke
1Department of Neurology, University of Iowa College of Medicine, Iowa City 52242, USA.
Abstract:
TOAST is a multicenter, randomized, placebo-controlled clinical trial testing the usefulness of a new antithrombotic drug in improving the outcome of persons with acute ischemic stroke. Until recently, no clinical trial testing a treatment for ischemic stroke had demonstrated efficacy in outcome. Design problems of previously conducted trials with inconclusive results may partly explain their failures. During the design of TOAST, the investigators addressed several issues so the trial could test the treatment accurately. We report the strategies used in designing, implementing, and coordinating the trial.
Insights
The Treatment of Acute Ischemic Stroke (TOAST) trial evaluated a new antithrombotic drug for acute ischemic stroke. This study focused on improving trial design to accurately assess treatment efficacy in stroke patients.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Clinical Trials
Background:
- Acute ischemic stroke treatment efficacy has historically lacked robust clinical trial evidence.
- Previous clinical trial designs may have contributed to inconclusive results in stroke treatment research.
- Identifying effective antithrombotic therapies remains a critical unmet need for stroke patients.
Purpose of the Study:
- To assess the efficacy of a novel antithrombotic agent in improving outcomes for patients with acute ischemic stroke.
- To address and overcome design limitations identified in prior stroke clinical trials.
- To report on the strategic approaches employed in the design, implementation, and coordination of the TOAST trial.
Main Methods:
- A multicenter, randomized, placebo-controlled clinical trial design was utilized.
- The trial specifically focused on individuals experiencing acute ischemic stroke.
- Key strategies were implemented to ensure accurate testing of the antithrombotic treatment's usefulness.
Main Results:
- The TOAST trial was designed to rigorously evaluate a new antithrombotic drug.
- Methodological improvements were incorporated to enhance the accuracy of treatment effect assessment.
- The trial's design aimed to provide definitive evidence on the drug's impact on stroke outcomes.
Conclusions:
- The TOAST trial employed robust design strategies to accurately test a new antithrombotic drug for acute ischemic stroke.
- Addressing previous trial design flaws was central to the TOAST study methodology.
- The reported strategies aim to improve the reliability of future clinical trial outcomes in stroke research.
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