Efficacy and Safety Study of Desmoteplase to Treat Acute Ischemic Stroke (DIAS-4)



Status:Terminated
Conditions:Neurology
Therapuetic Areas:Neurology
Healthy:No
Age Range:18 - 85
Updated:4/21/2016
Start Date:April 2009

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A Randomised, Double-Blind, Parallel-Group Placebo-Controlled Phase III Study to Evaluate the Efficacy and Safety of Desmoteplase in Subjects With Acute Ischemic Stroke

The purpose of the study is to determine whether desmoteplase is effective and safe in the
treatment of patients with acute ischaemic stroke when given within 3 to 9 hours from onset
of stroke symptoms.

Acute stroke is a major cause of mortality and long-term disability in the developed world.
The only currently approved thrombolytic intervention for acute ischemic stroke, which
constitutes the majority of strokes, is alteplase (recombinant tissue plasminogen activator;
rtPA). The use of alteplase is limited as it is approved for use within 3 hours after
symptom onset and by the risk of inducing intracerebral haemorrhage; consequently fewer than
3% of acute stroke subjects are treated. The thrombolytic agent desmoteplase (recombinant
Desmodus Salivary Plasminogen Activator alpha-1; rDSPAalpha-1) produced by recombinant
biotechnology has its naturally occurring counterpart in the saliva of the vampire bat
Desmodus rotundus. Compared to alteplase, desmoteplase has a more favourable profile in
terms of high fibrin specificity and non neurotoxicity.

The study aims to confirm efficacy and safety of desmoteplase for thrombolytic therapy of
patients with acute ischaemic stroke in the extended time window of 3 to 9 hours after onset
of stroke symptoms.

Inclusion Criteria:

- Diagnosis of acute ischemic stroke

- Informed consent

- Age between 18 and 85 years

- Treatment can be initiated within 3 to 9 hours after the onset of stroke symptoms

- NIHSS Score of 4 to 24

- Vessel occlusion or high-grade stenosis on MRI or CTA in proximal cerebral arteries

Exclusion Criteria:

- Pre-stroke mRS >1

- Previous exposure to desmoteplase

- Extensive early infarction on MRI or CT in any affected area

- Imaging evidence of ICH or SAH; AV malformation; cerebral aneurysm; or cerebral
neoplasm

- Internal carotid artery occlusion on the side of the stroke lesion

- Treatment with heparin in the past 48 hours and a prolonged partial thromboplastin
time

- Treatment with oral anticoagulants and a prolonged prothrombin time

- Treatment with glycoprotein IIb - IIIa inhibitors within the past 72 hours. Use of
single agent oral platelet inhibitors is permitted

- Treatment with a thrombolytic agent within the past 72 hours
We found this trial at
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New Haven, Connecticut 06510
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Albany, New York 12208
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Allentown, Pennsylvania 18103
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Castro Valley, California 94546
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Chattanooga, Tennessee 37403
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Chicago, Illinois 60622
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Chicago, Illinois 60612
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Detroit, Michigan 48201
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Fairfield, Connecticut 06824
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Gulfport, Mississippi 39502
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Houston, Texas 77030
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