Evidence map›Paper›PMID 24444117›Full record

Trial reportInternational journal of stroke : official journal of the International Stroke Society2014

Methodology of the Field Administration of Stroke Therapy - Magnesium (FAST-MAG) phase 3 trial: Part 2 - prehospital study methods.

Jeffrey L Saver, Sidney Starkman, Marc Eckstein, Samuel Stratton, Frank Pratt, Scott Hamilton, Robin Conwit, David S Liebeskind, Gene Sung, Nerses Sanossian and 1 more

Abstract readClinical Trial, Phase IIIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in International journal of stroke : official journal of the International Stroke Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

  1. Prehospital neuroprotectant in combination with post-arrival thrombolytic therapy for acute ischemic stroke. Secondary analysis of the FAST-MAG prehospital trial.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2026
    Trial
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Utilization of Emergent Neuroimaging for Thrombolysis-Eligible Stroke Patients.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2017
    Trial
  10. Trial
  11. Trial
  12. Article
  13. Article
  14. Article
  15. A Prehospital Acute Stroke Trial has Only Modest Impact on Enrollment in Concurrent, Post-arrival-Recruiting Stroke Trials.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2020
    Article
  16. Article
  17. Article
  18. Priorities to Overcome Barriers Impacting Data Science Application in Emergency Care Research.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2019
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Jeffrey L SaverComprehensive Stroke Center and Department of Neurology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.
Sidney Starkman
Marc Eckstein
Samuel Stratton
Frank Pratt
Scott Hamilton
Robin Conwit
David S Liebeskind
Gene Sung
Nerses Sanossian
FAST-MAG Investigators and Coordinators

Funding

Field Administration of Stroke Therapy-Magnesium Trial (FAST-MAG)U01NS044364 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SAVER, JEFFREY L · 2003 to 2013
$46.4M
NINDS NIH HHS U01 NS044364
6 · The paper itself

Abstract

rationaleIn acute stroke, the volume of salvageable brain tissue is maximal at onset and declines rapidly with time. Prehospital start of clinical trial interventions would enable delivery of neuroprotective agents, such as magnesium sulfate, to stroke patients in the hyperacute period when they are potentially most effective.

aimsA broad aim of the FAST-MAG study is to develop and validate techniques to perform pivotal trials of neuroprotective therapies for acute stroke in the prehospital setting. In tandem with an accompanying general trial design article, this manuscript provides a detailed overview of several novel prehospital study methods employed in the NIH FAST-MAG Trial.

designMulticenter, randomized, double-blinded, placebo-controlled, pivotal clinical trial. Special Prehospital Procedures Distinctive prehospital methods deployed in FAST-MAG include: identifying likely stroke patients using the Los Angeles Prehospital Stroke Screen; eliciting explicit informed consent from patients or on scene legally authorized representatives via cellphone discussion with off-scene physicians; paramedic rating of pretreatment stroke severity using the Los Angeles Motor Scale; assigning patients to a study arm using blinded, pre-encounter randomization; facilitating continuity of study infusion from the field to the ED by stocking ambulances with study kits including both field and hospital doses; and electronic fax consent signature documentation by geographically separated subjects and enrolling physicians. DISCUSSION: The suite of prehospital trial methods developed for the FAST-MAG Trial enable enrollment of patients in very early time windows, including the hyperacute, 'golden hour' period immediately after stroke onset.

Indexed as

Emergency Medical ServicesDouble-Blind MethodFemaleHumansMagnesiumMaleNeuroprotective AgentsStrokeTime FactorsTreatment OutcomeMagnesiumNeuroprotective Agentsambulanceclinical trialmagnesiumneuroprotectionparamedicprehospital

Identifiers

PMID24444117
PMCPMC4909491

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.