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CompletedNCT02419573PARTUpdated Jan 14, 2019Results posted

Pragmatic Airway Resuscitation Trial

An interventional study of Endotracheal Intubation and Laryngeal Tube (King) in Cardiac Arrest, sponsored by University of Alabama at Birmingham. Completed at 6 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-01-14.

Sponsored by University of Alabama at Birmingham · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
3,004
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

The primary objective of the trial is to determine if 72-hour survival after out-of-hospital cardiac arrest (OHCA) is improved with initial endotracheal intubation (ETI) over initial laryngeal tube (LT) airway management strategies.

Read the detailed description

The primary objective of the trial is to determine if 72-hour survival after out-of-hospital cardiac arrest (OHCA) is improved with initial endotracheal intubation (ETI) over initial laryngeal tube (LT) airway management strategies.

The null hypothesis is that 72-hour survival is similar between primary Laryngeal Tube (LT) SGA and primary ETI airway management strategies.

Evaluated secondary outcomes will include return of spontaneous circulation, survival to hospital discharge, neurologically intact survival at hospital discharge, airway management performance, and clinical adverse events.

02

Conditions studied

  • Cardiac Arrest

Keywords

  • cardiac arrest
  • cardiopulmonary resuscitation
  • laryngeal tube
  • endotracheal intubation
  • non-traumatic Out of Hospital Cardiac Arrest (OOHCA)
03

In context

Heart Arrest

966 studies on the registry are indexed under Heart Arrest; 226 are open to participants now.

This study's enrollment of 3,004 is above the median of 100 across 557 interventional studies indexed under Heart Arrest.

Browse Heart Arrest studies →

Lead sponsor

University of Alabama at Birmingham is the lead sponsor of 1,396 studies on the registry; 284 are open to participants now.

Of its 156 completed or terminated interventional studies of FDA-regulated products, 124 (79%) 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

Inclusion criteria

  • Out-of-hospital cardiac arrest (OHCA)
  • Adult (age ≥18 years or per local interpretation)
  • Non-traumatic etiology
  • Initiation of ventilatory support (e.g., bag-valve-mask device, non-rebreather mas, etc.)

Exclusion criteria

Exclusion Criteria:

  • Known pregnant women
  • Known prisoners
  • Major facial trauma (visible major deformity, copious oral bleeding, etc)
  • Major bleeding or exsanguination (e.g., major upper or lower GI bleed, visceral perforation, major uncontrolled bleeding from laceration or injury)
  • Patient receiving initial care by a non-PART participating EMS agency capable of performing ETI, LT, or other advanced airway management
  • Patients with ET tube, LT or other advanced airway device inserted prior to participating EMS agency arrival (e.g., inserted by healthcare facility personnel)
  • Patients with a pre-existing tracheostomy
  • Obvious asphyxial cardiac arrest (e.g., choking, foreign body aspiration, angioedema, epiglottitis, trauma to mouth and face, etc.)
  • Patients with a left ventricular assist device (LVAD) or total artificial heart (TAH)
  • Patients with pre-existing written "do-not-attempt-resuscitation" (DNAR) orders
  • Inter-facility transports
  • Patients with a "do not enroll" bracelet
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
3,004 participants (actual)

Study arms

  • Active comparator
    Endotracheal Intubation

    The insertion of a plastic breathing tube through the mouth and into the trachea.

    Device: Endotracheal Intubation

  • Active comparator
    Laryngeal Tube (King)

    Insertion of a supraglottic airway (SGA)

    Device: Laryngeal Tube (King)

Interventions

  • DeviceEndotracheal Intubation

    In this traditional model of OHCA airway management, advanced-level Emergency Medical Services (EMS) personnel will use ETI as the primary (initial) airway management intervention. If the EMS agency is assigned to this arm, basic-level EMS personnel will use bag-valve-mask ventilation only even if they would normally use an LT.

  • DeviceLaryngeal Tube (King)

    In this test model of OHCA airway management, advanced-level Emergency Medical Services (EMS) personnel will use LT as the primary (initial) airway management intervention. Basic-level EMS personnel will use bag-valve-mask ventilation. If trained to use LT, basic-level EMS personnel may perform LT insertion.

    Also known as: King (LT-D), King (LTS-D), King (LT)

06

What researchers measure

Primary outcomes

  1. Number of Patients Alive at 72 Hours After Episode.

    Number of patient alive at 72 hours after episode.

    Time frame: 72 hours

Secondary outcomes

  1. Return of Spontaneous Circulation (ROSC)

    Presence of palpable pulses on Emergency Department arrival. Patients pronounced dead in the field coded as ROSC=\[none\].

    Time frame: Patients will be followed from the time of the CA until death or ROSC whichever occurs first. The time frame for this secondary outcome may vary from minutes to hours, but is not expected to last longer than 12 hours.

  2. Number of Patients Alive at Hospital Discharge

    Number of patients alive at time hospital discharge.

    Time frame: From enrollment through end of hospital course. Maximum time interval not specified. Maximum time interval observed in study was 138 days.

  3. Number of Patients With Favorable Neurologic Status on Hospital Discharge

    Number of patients with favorable neurologic status, defined as Modified Rankin Scale (MRS) \<=3. MRS values for neurologic outcome include: 0 - No symptoms. 1. - No significant disability. Able to carry out all usual activities, despite some symptoms. 2. - Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities. 3. - Moderate disability. Requires some help, but able to walk unassisted. 4. - Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted. 5. - Severe disability. Requires constant nursing care and attention, bedridden, incontinent. 6. - Dead.

    Time frame: From enrollment through end of hospital course.

07

Results

Posted Dec 12, 2018

Participant flow

Participant flow — Overall Study
MilestoneEndotracheal IntubationLaryngeal Tube (King)
Started14991505
Completed14951505
Not completed40
Withdrew: Lost to follow-up30
Withdrew: Withdrawal by subject10

Outcome measures

PrimaryNumber of Patients Alive at 72 Hours After Episode.

Number of patient alive at 72 hours after episode.

Time frame:
72 hours
Reported as:
Count of participants · Participants
Number of Patients Alive at 72 Hours After Episode.
ParticipantsEndotracheal IntubationLaryngeal Tube (King)
Number of Patients Alive at 72 Hours After Episode.230275
SecondaryReturn of Spontaneous Circulation (ROSC)

Presence of palpable pulses on Emergency Department arrival. Patients pronounced dead in the field coded as ROSC=\[none\].

Time frame:
Patients will be followed from the time of the CA until death or ROSC whichever occurs first. The time frame for this secondary outcome may vary from minutes to hours, but is not expected to last longer than 12 hours.
Reported as:
Count of participants · Participants
Return of Spontaneous Circulation (ROSC)
ParticipantsEndotracheal IntubationLaryngeal Tube (King)
Return of Spontaneous Circulation (ROSC)361420
SecondaryNumber of Patients Alive at Hospital Discharge

Number of patients alive at time hospital discharge.

Time frame:
From enrollment through end of hospital course. Maximum time interval not specified. Maximum time interval observed in study was 138 days.
Reported as:
Count of participants · Participants
Number of Patients Alive at Hospital Discharge
ParticipantsEndotracheal IntubationLaryngeal Tube (King)
Number of Patients Alive at Hospital Discharge121163
SecondaryNumber of Patients With Favorable Neurologic Status on Hospital Discharge

Number of patients with favorable neurologic status, defined as Modified Rankin Scale (MRS) \<=3. MRS values for neurologic outcome include: 0 - No symptoms. 1. - No significant disability. Able to carry out all usual activities, despite some symptoms. 2. - Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities. 3. - Moderate disability. Requires some help, but able to walk unassisted. 4. - Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted. 5. - Severe disability. Requires constant nursing care and attention, bedridden, incontinent. 6. - Dead.

Time frame:
From enrollment through end of hospital course.
Reported as:
Count of participants · Participants
Number of Patients With Favorable Neurologic Status on Hospital Discharge
ParticipantsEndotracheal IntubationLaryngeal Tube (King)
Number of Patients With Favorable Neurologic Status on Hospital Discharge75107

Adverse events

Collected over 72 hours of hospitalization.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Endotracheal Intubation1,265/1,495 (84.6%)0/1,495 (0%)582/1,495 (38.9%)
Laryngeal Tube (King)1,230/1,505 (81.7%)0/1,505 (0%)173/1,505 (11.5%)
Most frequent other events
Most frequent other events
EventEndotracheal IntubationLaryngeal Tube (King)
Unsuccessful insertion of assigned airway.Injury, poisoning and procedural complications573/1299159/1353
Pneumonia or Aspiration PneumonitisRespiratory, thoracic and mediastinal disorders89/398120/460
Multiple (>=3) attempts to insert the assigned airway.Injury, poisoning and procedural complications245/129961/1353
Rib FractureRespiratory, thoracic and mediastinal disorders30/42616/85
PneumothoraxRespiratory, thoracic and mediastinal disorders30/42617/485

Baseline characteristics

3,004 enrolled, 3 lost to follow-up, 1 withdrew from study.

Age, Continuous
Age, Continuous(Years)Endotracheal IntubationLaryngeal Tube (King)Total
Mean63 ± 16.963.2 ± 17.063.1 ± 17.0
Sex: Female, Male
Sex: Female, Male(Participants)Endotracheal IntubationLaryngeal Tube (King)Total
Female5985761174
Male8979291826
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Endotracheal IntubationLaryngeal Tube (King)Total
American Indian or Alaska Native3710
Asian273562
Native Hawaiian or Other Pacific Islander325
Black or African American493385878
White8049031707
More than one race235
Unknown or Not Reported163170333
Region of Enrollment
Region of Enrollment(participants)Endotracheal IntubationLaryngeal Tube (King)Total
United States149515053000
08

Study locations

6 sites
  • Alabama Resuscitation Center
    Birmingham, Alabama 35294, United States
  • Portland Resuscitation Outcomes Consortium, Oregon Health & Sciences University
    Portland, Oregon 92739, United States
  • The Pittsburgh Resuscitation Network, University of Pittsburgh
    Pittsburgh, Pennsylvania 15261, United States
  • Dallas Center for Resuscitation Research, University of Texas Southwestern Medical Cente
    Dallas, Texas 75390, United States
  • University of Washington (Data Coordinating Center)
    Seattle, Washington 98115, United States
  • Milwaukee Resuscitation Network, Medical College of Wisconsin
    Milwaukee, Wisconsin 53226, United States
09

References and documents

Publications

  • Wang HE, Humbert A, Nichol G, Carlson JN, Daya MR, Radecki RP, Hansen M, Callaway CW, Pedroza C. Bayesian Analysis of the Pragmatic Airway Resuscitation Trial. Ann Emerg Med. 2019 Dec;74(6):809-817. doi: 10.1016/j.annemergmed.2019.05.009. Epub 2019 Jul 2. PubMed 31272823 ↗
  • Wang HE, Schmicker RH, Daya MR, Stephens SW, Idris AH, Carlson JN, Colella MR, Herren H, Hansen M, Richmond NJ, Puyana JCJ, Aufderheide TP, Gray RE, Gray PC, Verkest M, Owens PC, Brienza AM, Sternig KJ, May SJ, Sopko GR, Weisfeldt ML, Nichol G. Effect of a Strategy of Initial Laryngeal Tube Insertion vs Endotracheal Intubation on 72-Hour Survival in Adults With Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial. JAMA. 2018 Aug 28;320(8):769-778. doi: 10.1001/jama.2018.7044. PubMed 30167699 ↗

Study documents

  • Protocol and statistical analysis plan · Nov 29, 2016

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 14, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02419573
Lead sponsor
University of Alabama at Birmingham
Collaborators
National Heart, Lung, and Blood Institute (NHLBI), American Heart Association, The University of Texas Health Science Center, Houston
Responsible party
Henry E. Wang, MD, MS (Principal Investigator, University of Alabama at Birmingham) — Principal investigator
First posted
Apr 17, 2015
Start date
Dec 1, 2015
Primary completion
Dec 1, 2017
Completion
Dec 1, 2017
Results posted
Dec 12, 2018
Last update
Jan 14, 2019

Study contacts

Henry E Wang, MD
principal investigator · University of Alabama, University of Texas Health Science Center at Houston

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2018. You cannot join it, but the record below documents what was studied.

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