CClinicalTrials.gg
TerminatedNCT02888067Updated Oct 23, 2023

Surgical Conditions During Vocal Cord Surgery Requiring Jet Ventilation With Moderate vs. Deep Neuromuscular Block

A Phase 1 interventional study of Rocuronium bromide 0.5 mg/kg and Rocuronium bromide 1.0 mg/kg in High-Frequency Jet Ventilation and Vocal Cord Resection, sponsored by Thomas Schricker. Terminated at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-23.

Sponsored by Thomas Schricker · Phase 1, Interventional, and Other

Why this study was terminated
Slow recruitment
Phase
Phase 1
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to determine whether deep neuromuscular blockade provides better surgical conditions than moderate neuromuscular blockade in patients undergoing vocal cord resections requiring jet ventilation.

Read the detailed description

To optimize anatomical exposure and to minimize direct manipulation of local lesions endotracheal intubation often is avoided in patients undergoing vocal cord surgery.

Instead intermittent so called jet ventilation is carried out by using the Hunsaker Mon-jet tube. The safe conduct of these procedures requires full muscle paralysis. In clinical practice, however, deep neuromuscular blockade (NMB) usually cannot be established for this relatively short surgery (\<1h) because of an increased risk of prolonged NMB and postoperative ventilation.

The novel neuromuscular blockade reversal agent sugammadex may prove particularly useful in this patient population because it allows fast and reliable reversal of even deep NMB. Deeper muscle paralysis during vocal cord surgery may be associated with better surgical conditions.

The purpose of this study is to determine whether deep neuromuscular blockade provides better surgical conditions than moderate neuromuscular blockade in patients undergoing vocal cord resections requiring jet ventilation.

02

Conditions studied

  • High-Frequency Jet Ventilation
  • Vocal Cord Resection

Keywords

  • Neuromuscular Blockade
03

In context

Lead sponsor

This is the only study on the registry with Thomas Schricker as lead sponsor.

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

  • Elective vocal cord resection with an expected length of the procedure longer than 20 minutes and requiring jet ventilation

Exclusion criteria

Exclusion Criteria:

  • Patients younger than 18 years old
  • Patients unable to give written informed consent
  • Patients with known or suspected neuromuscular disease
  • Patients with allergies to medications to be used during anesthesia
  • Patients with a (family) history of malignant hyperthermia
  • Patients with renal insufficiency (serum creatinine >2 times normal or a glomerular filtration rate \<60 ml/h)
05

Study design

Phase
Phase 1
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Outcomes assessor)
Enrollment
12 participants (actual)

Study arms

  • Active comparator
    Moderate neuromuscular blockade (MNB)

    The goal is to realize a moderate NMB (TOF 1-2 twitches). NMB will be induced with a bolus dose of rocuronium (Non-depolarizing Skeletal Neuromuscular Blocking Agent). If the target TOF values was not reached bolus doses of rocuronium (5 mg) will be given to achieve the target. This represents the standard care in our institution for this type of surgery. At the end of surgery, neuromuscular blockade in all patients will be reversed by sugammadex: patients in the moderate neuromuscular blockade group will receive sugammadex (Selective Relaxant Binding Agent).

    Drug: Rocuronium bromide 0.5 mg/kg · Drug: Sugammadex sodium 2 mg/kg

  • Active comparator
    Deep neuromuscular blockade (MNB)

    The goal is to realize a deep MNB (TOF zero twitches). NMB will be induced with a bolus dose of rocuronium (Non-depolarizing Skeletal Neuromuscular Blocking Agent). If the target TOF values was not reached bolus doses of rocuronium (5 mg) will be given to achieve the target. At the end of surgery, neuromuscular blockade in all patients will be reversed by sugammadex: patients in the deep neuromuscular blockade group will receive sugammadex (Selective Relaxant Binding Agent).

    Drug: Rocuronium bromide 1.0 mg/kg · Drug: Sugammadex sodium 4 mg/kg

Interventions

  • DrugRocuronium bromide 0.5 mg/kg

    Moderate neuromuscular blockade with rocuronium bromide

    Also known as: Zemuron®

  • DrugRocuronium bromide 1.0 mg/kg

    Deep neuromuscular blockade with rocuronium bromide

    Also known as: Zemuron®

  • DrugSugammadex sodium 2 mg/kg

    Reversal with sugammadex sodium

    Also known as: Bridion™

  • DrugSugammadex sodium 4 mg/kg

    Reversal with sugammadex sodium

    Also known as: Bridion™

06

What researchers measure

Primary outcomes

  1. Five-point surgical rating scale (SRS)

    Surgical conditions during surgery will be assessed by the surgeon using a five-point surgical rating scale at 10 minutes intervals

    Time frame: during surgery, an average period of 50 minutes

Secondary outcomes

  1. Drug dosages

    Drugs and dosages used during the study

    Time frame: Through study completion, an average of 4 hours

  2. Time to extubation

    Time from reversal to optimal extubation conditions (TOF ratio \<0.9)

    Time frame: During the stay in the operation room, an average of 60 minutes

  3. Heart rate

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  4. Arterial blood pressure

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  5. Oxygen saturation

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  6. Respiratory rate

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  7. Body temperature

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  8. Duration of surgery

    Time frame: During the stay in the operation room, an average of 50 minutes

  9. Duration of post-anesthesia care unit (PACU) stay

    Time spent in the PACU

    Time frame: During the stay in the recovery room, an average of 3 hours

  10. Pain score

    On an 11-point numerical rating scale from 0 = no pain, to 10 = most severe pain imaginable at PACU

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  11. Occurence of nausea/vomiting

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

  12. Sedation

    On a five-point scale ranging from 0 = normal alertness to 5 = not aroused by a painful stimulus at PACU

    Time frame: During the stay in the operation and recovery room, an average of 4 hours

07

Study locations

1 site
  • MUHC
    Montreal, Quebec H4A3J1, Canada
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 23, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02888067
Lead sponsor
Thomas Schricker
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Thomas Schricker (Professor and Chairman,Department of Anesthesia, McGill University Health Centre/Research Institute of the McGill University Health Centre) — Sponsor-investigator
First posted
Sep 2, 2016
Start date
Jul 1, 2017
Primary completion
Jul 20, 2022
Completion
Jul 20, 2022
Last update
Oct 23, 2023

Study contacts

Thomas Schricker, M.D., PhD.
principal investigator · McGill University Health Centre/Research Institute of the McGill University Health Centre

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion