Trial Outcomes & Findings for Intubating Conditions of Neuromuscular Blockade (NCT NCT05620108)

NCT ID: NCT05620108

Last Updated: 2025-10-14

Results Overview

The number of subjects who had optimal intubating conditions (total composite score of 3) will be evaluated by the healthcare providers using a scale that includes 3 variables (ease of laryngoscopy, vocal cord position, and reaction to tracheal tube insertion) with 3 response options per each evaluation. The composite score (1-3) will be used, with the lowest total score of 3 correlating with optimal intubating conditions and the highest score of 9 representing the worse possible intubating conditions.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

170 participants

Primary outcome timeframe

Approximately 15 minutes after intubation

Results posted on

2025-10-14

Participant Flow

Participant milestones

Participant milestones
Measure
Intubation at TOFC=1
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed when muscles were almost relaxed and monitoring showed only a single count of muscle twitch (in response to a monitor that assessed muscle relaxation) Endotracheal Intubation at TOFC=1: Intubation using a video laryngoscopy was performed after train-of-four (TOFC) stimulation indicated neuromuscular blockade
Intubation 2 Minutes After Rocuronium Administration
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed 2 minutes after the anesthesia provider gave muscle relaxing medication Endotracheal Intubation 2 minutes after rocuronium administration: Intubation using a video laryngoscopy was performed 2 minutes after administration of rocuronium at 0.6 mg/kg (usual current clinical routine)
Overall Study
STARTED
85
85
Overall Study
COMPLETED
84
83
Overall Study
NOT COMPLETED
1
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Intubation at TOFC=1
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed when muscles were almost relaxed and monitoring showed only a single count of muscle twitch (in response to a monitor that assessed muscle relaxation) Endotracheal Intubation at TOFC=1: Intubation using a video laryngoscopy was performed after train-of-four (TOFC) stimulation indicated neuromuscular blockade
Intubation 2 Minutes After Rocuronium Administration
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed 2 minutes after the anesthesia provider gave muscle relaxing medication Endotracheal Intubation 2 minutes after rocuronium administration: Intubation using a video laryngoscopy was performed 2 minutes after administration of rocuronium at 0.6 mg/kg (usual current clinical routine)
Overall Study
Physician Decision
1
2

Baseline Characteristics

Intubating Conditions of Neuromuscular Blockade

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Intubation at TOFC=1
n=85 Participants
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed when muscles were almost relaxed and monitoring showed only a single count of muscle twitch (in response to a monitor that assessed muscle relaxation) Endotracheal Intubation at TOFC=1: Intubation using a video laryngoscopy was performed after train-of-four (TOFC) stimulation indicated neuromuscular blockade
Intubation 2 Minutes After Rocuronium Administration
n=85 Participants
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed 2 minutes after the anesthesia provider gave muscle relaxing medication Endotracheal Intubation 2 minutes after rocuronium administration: Intubation using a video laryngoscopy was performed 2 minutes after administration of rocuronium at 0.6 mg/kg (usual current clinical routine)
Total
n=170 Participants
Total of all reporting groups
Age, Continuous
59.8 years
STANDARD_DEVIATION 12.9 • n=5 Participants
59.1 years
STANDARD_DEVIATION 14.8 • n=7 Participants
59.4 years
STANDARD_DEVIATION 13.9 • n=5 Participants
Sex: Female, Male
Female
40 Participants
n=5 Participants
38 Participants
n=7 Participants
78 Participants
n=5 Participants
Sex: Female, Male
Male
45 Participants
n=5 Participants
47 Participants
n=7 Participants
92 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=5 Participants
6 Participants
n=7 Participants
10 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
80 Participants
n=5 Participants
78 Participants
n=7 Participants
158 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
4 Participants
n=7 Participants
7 Participants
n=5 Participants
Race (NIH/OMB)
White
79 Participants
n=5 Participants
78 Participants
n=7 Participants
157 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Region of Enrollment
United States
85 participants
n=5 Participants
85 participants
n=7 Participants
170 participants
n=5 Participants

PRIMARY outcome

Timeframe: Approximately 15 minutes after intubation

The number of subjects who had optimal intubating conditions (total composite score of 3) will be evaluated by the healthcare providers using a scale that includes 3 variables (ease of laryngoscopy, vocal cord position, and reaction to tracheal tube insertion) with 3 response options per each evaluation. The composite score (1-3) will be used, with the lowest total score of 3 correlating with optimal intubating conditions and the highest score of 9 representing the worse possible intubating conditions.

Outcome measures

Outcome measures
Measure
Intubation at TOFC=1
n=84 Participants
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed when muscles were almost relaxed and monitoring showed only a single count of muscle twitch (in response to a monitor that assessed muscle relaxation) Endotracheal Intubation at TOFC=1: Intubation using a video laryngoscopy was performed after train-of-four (TOFC) stimulation indicated neuromuscular blockade
Intubation 2 Minutes After Rocuronium Administration
n=83 Participants
Subjects scheduled for an elective surgical procedure had endotracheal intubation performed 2 minutes after the anesthesia provider gave muscle relaxing medication Endotracheal Intubation 2 minutes after rocuronium administration: Intubation using a video laryngoscopy was performed 2 minutes after administration of rocuronium at 0.6 mg/kg (usual current clinical routine)
Number of Subjects With Optimal Intubating Conditions
61 Participants
47 Participants

Adverse Events

Intubation at TOFC=1

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Intubation 2 Minutes After Rocuronium Administration

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

J. Ross Renew, M.D.

Mayo Clinic

Phone: 904-956-3328

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place