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WithdrawnNCT01202318MeDSUpdated Jun 15, 2012

Comparative Evaluation of Stroke Triage Algorithms for Emergency Medical Dispatchers

An observational study in Stroke, sponsored by University of California, San Francisco. Withdrawn at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2012-06-15.

Sponsored by University of California, San Francisco · Observational

Why this study was withdrawn
The study design was changed to a prospective cohort study due to difficulties in using a randomized approach in an emergency setting
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
0
Ages
18 Years and older
Sex
All
01

Study summary

This study will compare the diagnostic accuracy of Card 28 stroke protocol to Card 28 and Cincinnati Stroke Scale, when used by emergency medical dispatchers to interrogate a 911 call suggestive of stroke.

The authors hypothesize that a combination of Card 28 plus the Cincinnati Stroke Scale (CSS) will improve the diagnostic accuracy of emergency medical dispatchers for stroke.

02

Conditions studied

  • Stroke

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Keywords

  • Cerebrovascular Accident
  • Stroke,Acute
03

In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,007 are open to participants now.

Browse Stroke studies →

Lead sponsor

University of California, San Francisco is the lead sponsor of 2,132 studies on the registry; 375 are open to participants now.

Of its 262 completed or terminated interventional studies of FDA-regulated products, 196 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

The target study population consists of all 911 callers with symptoms suggestive of stroke in the participating county. Specifically, the accessible population for this study is the group of patients whose 911 calls are answered and interrogated by the emergency medical dispatchers at the County Communication Center, Santa Clara.

Inclusion criteria

  1. All 911 calls transferred by local Public Service Answering Points (PSAPs) to the County Communication center of Santa Clara County where the emergency medical dispatchers complete the interrogation using MPDS protocols.
  2. All 911 calls received directly at the County Communication center of Santa Clara County where emergency medical dispatchers complete the interrogation using the MPDS protocols.
  3. All 911 calls received from subjects (patient) aged > 18 years or second party calls (by-stander or family who are in close proximity to the patient and can administer the tool) by subjects > 18 years of age.

Exclusion criteria

Exclusion Criteria:

  1. All calls that require immediate response (ECHO level determinant for life threatening conditions) and emergency medical dispatchers cannot complete Card 28
  2. Calls answered by emergency medical dispatchers who have not completed training on the use of Cincinnati Stroke Scale.
  3. Calls originating from the cities of Palo Alto, Mountain View, Sunnyvale, Santa Clara, and San Jose that are not interrogated by the County Communication Center for Santa Clara County.

  4. 911 calls with no available outcomes in the final discharge database.

    -

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
0 participants (actual)
06

Study locations

1 site
  • Alameda County
    Alameda, California, United States
07

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 15, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
08

Registry details

Key details

Study ID
NCT01202318
Lead sponsor
University of California, San Francisco
Responsible party
Sponsor
First posted
Sep 15, 2010
Start date
May 2010
Primary completion
Jun 2012
Completion
Jun 2012
Last update
Jun 15, 2012

Study contacts

Prasanthi Govindarajan, MBBS, MAS
principal investigator · University of California, San Francisco

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Jun 2012. You cannot join it, but the record below documents what was studied.

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Discussion

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