Desmoteplase in Acute Ischemic Stroke (DIAS)

Phase 2

Completed

• Conditions: Stroke
• Interventions: Drug: Placebo; Drug: Desmoteplase

• Registration Number: NCT00638781
• Lead Sponsor: PAION Deutschland GmbH

Brief Summary

The DIAS study (Part 2) was performed to support the dose finding of desmoteplase treatment in subjects with acute ischemic stroke selected by perfusion/diffusion mismatch on MRI within a time window of 3 to 9 h after stroke-symptom onset. In addition, it assessed safety and tolerability of 3 doses of desmoteplase compared with placebo with special consideration of intracranial hemorrhage and major systemic bleedings.

Detailed Description

Acute stroke is the third leading cause of mortality in developed countries and the major medical cause of disability. The outcome can be improved by early treatment with thrombolysis. Alteplase (r-tPA) is the only approved thrombolytic drug in the indication of acute ischemic stroke. However, the use of alteplase is currently restricted by the need to administer it within 3 hours of symptom onset. As the risk of transforming a cerebral infarct into haemorrhage probably rises as the time elapsed increases, a thrombolytic drug that carries a lower risk of haemorrhage than alteplase may offer a wider time-to-treatment window and improve the safety profile.Desmoteplase (DSPA) with its high fibrin specificity, lack of neurotoxicity, potential neuroprotective effect, non-activation by ß-amyloid, and long terminal half-life may account for an improved safety and efficacy profile within the first 9 hours after onset of symptoms.

Study Timeline

• Study Start: 2001-03
• Primary Completion: 2003-10
• Study Completion: 2003-10
• Status Verified: 2008-03
• Study First Submitted: 2008-03-12
• Study First Submitted QC: 2008-03-12
• Last Update Submitted: 2008-03-12
• Study First Posted: 2008-03-19
• Last Update Posted: 2008-03-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 104

Inclusion Criteria

• scoring 4 to 20 on the National Institute of Health Stroke Scale (NIHSS)
• showing a perfusion-diffusion mismatch on MRI of 20 %
• enrolment within a 3 h to 9 h time window after symptom onset.
• 18-85 years of age

Exclusion Criteria

• Participation in any interventional trial in the previous 30 days.
• Women in the childbearing age.
• Any history of intracranial hemorrhage, subarachnoid hemorrhage, neoplasm, arteriovenous malformation or aneurysm.
• Conditions that, according to the judgment of the investigator, might impose an additional risk to any individual stroke patient when receiving study medication (this applied to patients on platelet-function inhibitors as well).
• MRI exclusion criteria: Evidence of ICH, Evidence of SAH, Signs of extensive early infarction on DWI assessed by evidence of involvement of >1/3 of the middle cerebral artery (MCA) territory. No perfusion deficit, Internal carotid artery (ICA) occlusion ipsilateral to stroke lesion without additional ipsilateral MCA, anterior cerebral artery (ACA) or posterior cerebral artery (PCA) occlusion. Any intracranial pathology that would interfere with the MRI assessment of acute ischemic stroke.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
4	Placebo	Placebo i.v. bolus
1	Desmoteplase	Desmoteplase 62.5 µg/kg BW i.v. bolus
2	Desmoteplase	Desmoteplase 90 µg/kg BW i.v. bolus
3	Desmoteplase	Desmoteplase 125 µg/kg BW i.v. bolus

Primary Outcome Measures

Name	Time	Method
National Institutes of Health Stroke Scale (NIHSS), Barthel-Index & mRS	Day 90
Change in lesion volume	Day 30

Secondary Outcome Measures

Name	Time	Method
Reperfusion after 4-8 h	8 h
Safety and pharmacoeconomic outcomes	Day 90

Trial Locations

Locations (1)

Prof. Dr. Werner Hacke; 🇩🇪 Heidelberg, Germany