BEnefits of Stroke Treatment Delivered Using a Mobile Stroke Unit

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2/PHASE3

Total Enrollment

1038 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-08-31

Study Completion Date

2023-08-31

Brief Summary

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The primary goal of this project is to carry out a trial comparing pre-hospital diagnosis and treatment of patients with stroke symptoms using a Mobile Stroke Unit (MSU) with subsequent transfer to a Comprehensive Stroke Center (CSC) Emergency Department (ED) for further management, to standard pre-hospital triage and transport by Emergency Medical Services (EMS) to a CSC ED for evaluation and treatment (Standard Management-SM).

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Detailed Description

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There are many ways that use of a MSU might prove valuable in stroke patients, but we will focus on acute ischemic stroke (AIS) and treatment with IV tissue plasminogen activator (tPA) within 4.5 hours of symptom onset since that is the most evidence based effective emergency treatment for the most prevalent stroke diagnosis. We hypothesize that the MSU pathway will result in an overall shift towards earlier evaluation and treatment, particularly into the first hour after symptom onset, leading to substantially better outcome. We also hypothesize that as a result of improved clinical outcomes resulting from earlier treatment, the costs of a MSU program will be offset by a reduction in the costs of long term stroke care and increase in quality adjusted life years, thereby supporting more widespread use of this technology. To make MSU deployment more practical, we will confirm that a Vascular Neurologist (VN) on board the MSU can be replaced by a remote VN connected to the MSU by telemedicine (TM) thereby reducing manpower requirements and costs.

The successful completion of this project will provide data on important outcomes and costs associated with the use of MSU vs SM in the United States (U.S.) that will help determine the value of integrating MSUs into the pre-hospital environment in this country. Successfully addressing our three Specific Aims (time saved/ complications encountered, utility of TM, and cost effectiveness) will provide critical information that will be needed to determine if and how a subsequent more definitive study should be conducted. We anticipate that emanating from this exploratory study would be a larger multicenter trial carried out in both urban and rural U.S. pre-hospital environments, with treatment orchestrated via TM, and having sufficient power to determine a difference in long term outcome and costs between patients managed on the two pathways, following a study design that will be tested in this exploratory trial. The present study, therefore, is the necessary first step in a process which may dramatically modify the way that acute stroke patients are managed in the U.S.

Conditions

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Acute Ischemic Stroke

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Alternating week assignment to groups. Entry criteria adjudicated by masked investigator. Primary outcome also by masked investigator.

Study Groups

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Mobile Stroke Unit Management

Acute ischemic stroke patients treated in the Mobile Stroke Unit

Group Type ACTIVE_COMPARATOR

Mobile Stroke Unit Management

Intervention Type OTHER

Mobile Stroke Unit is a standard 12' Houston Fire Department ambulance equipped with point of care lab, CT scanner and staffed by a Vascular Neurologist, Registered Nurse with acute stroke and research experience, CT Technician and a Registered EMT-P. The MSU is dispatched in coordination with Houston, Bellaire and West University fire department/emergency medical services.

Standard Management

Acute ischemic stroke patients receiving standard management

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Mobile Stroke Unit Management

Mobile Stroke Unit is a standard 12' Houston Fire Department ambulance equipped with point of care lab, CT scanner and staffed by a Vascular Neurologist, Registered Nurse with acute stroke and research experience, CT Technician and a Registered EMT-P. The MSU is dispatched in coordination with Houston, Bellaire and West University fire department/emergency medical services.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Last seen normal within 4hr 30 min of symptom onset
* History and physical/neurological examination consistent with acute stroke
* No tPA exclusions per guidelines, prior to CT scan or baseline labs
* Informed consent obtained from patient (if competent) or legal representative.