NCT06029049

Brief Summary

The purpose of this study is to assess and compare conditions for tracheal intubation obtained with modified time principal induction with 0.6 mg/kg rocuronium and 1 mg/kg succinylcholine. Specifically, the investigators will be evaluating ease of laryngoscopy, vocal cord view, vocal cord opening, and movement of limbs and coughing during tracheal intubation in order to assess intubation conditions, to compare efficiency and success rate of tracheal intubation between two induction agents and to determine the rate of patient awareness during induction and post-operative recall of paralysis.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
152

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Sep 2023

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 22, 2023

Completed
17 days until next milestone

First Posted

Study publicly available on registry

September 8, 2023

Completed
5 days until next milestone

Study Start

First participant enrolled

September 13, 2023

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2025

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2025

Completed
Last Updated

December 10, 2024

Status Verified

December 1, 2024

Enrollment Period

1.7 years

First QC Date

August 22, 2023

Last Update Submit

December 6, 2024

Conditions

Outcome Measures

Primary Outcomes (5)

  • Ease of laryngoscopy

    Ease of laryngoscopy is scored categorically as easy (Jaw relaxed, no resistance to blade during laryngoscopy) , fair (Jaw not fully relaxed, some resistance to blade) or difficult (Poor jaw relaxation, active resistance by patient to laryngoscopy)

    During procedure (Between laryngoscope insertion to onset of ventilation (less than 7 minutes))

  • Position of vocal cords

    Position of vocal cords is scored categorically as abducted, intermediate or closed

    During procedure (Between laryngoscope insertion to onset of ventilation (less than 7 minutes))

  • Movement of vocal cords

    Movement of vocal cords is scored categorically as none , moving or closing

    During procedure (Between laryngoscope insertion to onset of ventilation (less than 7 minutes))

  • Number of participants who moved their limbs during intubation

    none, slight or vigorous

    During procedure (Between laryngoscope insertion to onset of ventilation (less than 7 minutes))

  • number of participants who coughed during tracheal intubation

    none, diaphragm or sustained (\>10s)

    During procedure (Between laryngoscope insertion to onset of ventilation (less than 7 minutes))

Secondary Outcomes (17)

  • Number of participants for whom tracheal intubations were successful on the first attempt

    5 minutes after intubation and successful ventilation

  • Number of times tracheal intubations are attempted

    5 minutes after intubation and successful ventilation

  • Number of participants for whom tracheal intubations failed

    After 3 failed intubation attempts (less than 7 minutes from start of intubation)

  • Airway view at the time of laryngoscopy as categorized by the modified Cormack-Lehane classification (before external manipulation)

    from start of induction to 5 minutes of successful ventilation

  • Satisfaction of providers with intubating conditions

    from 5 minutes of successful ventilation

  • +12 more secondary outcomes

Study Arms (2)

Modified Time Principle Induction (MTPI) with rocuronium

EXPERIMENTAL
Drug: Modified Time Principle Induction (MTPI) with rocuronium

RSI with succinylcholine

ACTIVE COMPARATOR
Drug: RSI succinylcholine

Interventions

Participants will be induced using lidocaine 1 mg/kg IV, an opioid such a fentanyl (1-2 mcg/kg) IV, followed by 0.6 mg/kg IV rocuronium, and IV propofol with dosage at the discretion of the care team, administered within 10 seconds of rocuronium and the intubation will be performed with a C-MAC

Modified Time Principle Induction (MTPI) with rocuronium

Participants will be induced as per routine care using lidocaine 1 mg/kg IV, an opioid such a fentanyl (1-2 mcg/kg) IV, propofol 1-2 mg/kg IV, and succinylcholine 1mg/kg IV, and the intubation will be performed with a C-MAC

RSI with succinylcholine

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • BMI \> 30kg/m2 or Mallampati class III or IV.
  • Requiring general anesthesia and endotracheal intubation

You may not qualify if:

  • Acute and chronic respiratory disorders, including Chronic obstructive pulmonary disease(COPD) and asthma.
  • The American Society of Anesthesiologists (ASA) physical status classification \> III.
  • Patients requiring awake intubation.
  • Pregnant women.
  • Untreated ischemic heart disease.
  • Patients requiring an induction dose of propofol \< 1 mg/kg.
  • Allergy to propofol, rocuronium, succinylcholine, or sugammadex.
  • Patients with renal failure and unknown potassium (K+) level, or patients with K+ level \> 5.0
  • Personal history of malignant hyperthermia (MH), or family history of MH
  • Patients with suspected or diagnosed neuromuscular disease, patients with burn injuries

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Texas Health Science Center at Houston

Houston, Texas, 77030, United States

RECRUITING

Study Officials

  • Lauren M Nakazawa, MD,MBA

    The University of Texas Health Science Center, Houston

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

August 22, 2023

First Posted

September 8, 2023

Study Start

September 13, 2023

Primary Completion

June 1, 2025

Study Completion

July 1, 2025

Last Updated

December 10, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations