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Status unknownNCT02329964Updated Sep 28, 2015Results posted

Effectiveness of Sugammadex in LMS Surgery

A Phase 4 interventional study of Sugammadex and Neostigmine in Muscle Relaxation, sponsored by Korea University Anam Hospital. Status unknown. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-09-28.

Sponsored by Korea University Anam Hospital · Phase 4, Interventional, and Supportive care

The sponsor has not verified this record recently (last verified Aug 2015), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 4
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

This study is comparing of rocuronium-sugammadex and succinylcholine during LMS surgery that is characterized by short operation time, required intense paralysis and ambulatory setting, has not been investigated.

Read the detailed description

Laser microlaryngeal surgery (LMS) requires brief and intense paralysis in the short operation time and the ambulatory setting.

The ideal muscle relaxant with rapid onset time, short duration of action and minimal side effects is not yet available.

Succinylcholine (SCC) is commonly used muscle relaxant for LMS because of its rapid onset time and short duration of action.

The use of SCC for tracheal intubation is usually followed by repeated small boluses or drip of SCC or small boluses of nondepolarizing muscle relaxants with intermediate duration.

As an alternative to SCC, the non-depolarizing neuromuscular blocking agent rocuronium can be used for LMS. The onset of rocuronium 1mg/kg is around 60s that is similar to SCC. However higher doses of rocuronium have a long duration of action; this is inappropriate in ambulatory surgery that requires rapid recovery of neuromuscular function and rapid turnover.

Sugammadex has recently been introduced as a selective relaxant-binding agent that allows for rapid reversal of rocuronium-induced neuromuscular blockade. Even profound neuromuscular block with rocuronium can be quickly antagonized with sugammadex.

After obtaining Institutional Review Board approval and written informed consent, 80 patients is enrolling in this study.

Patients is divided by two groups randomly as the Rocuronium-Sugammadex group(R-S group) and the Succinylcholine - Cisatracurium- Neostigmine group(S-C-N group) .

Anesthesia was induced with intravenous propofol 1.5-2.5 mg/kg, together with fentanyl1.5 mcg/kg After induction of anesthesia, neuromuscular monitoring is performed continuously at the adductor pollicis muscle with acceleromyography (TOF-Watch®).

Subsequently, in the R-S group, patients receive rocuronium 1mg/kg and in the S-C-N group, patients receive SCC 1mg/kg.

After T1 assessed as being zero by neuromuscular monitoring, endotracheal intubation is performed.

After endotracheal intubation, in the S-C-N group, cisatracurium 0.08mg/kg is injected and in the R-S group, the same volume of normal saline is injected.

Anesthesia is maintained with desflurane with air during the surgery. Additive dose of rocuronium 0.15mg/kg or SCC 10mg is given as necessary to ensure that neuromuscular blockade remains below T2 during surgery.

After the surgical procedure ends, patients receive sugammadex 2mg/kg in the R-S group, and pyridostigmine 0.2 mg/kg with atropine 10mcg/kg in the S-C-N group at the appearance of second TOF twitch (T2).

Patient will be assessed for the time to recovery of the TOF ratio to 0.9, surgical rating scale (1- extremely poor conditions, 2- poor conditions, 3- acceptable conditions, 4- good conditions, 5- optimal conditions), and anesthesia time.

02

Conditions studied

  • Muscle Relaxation

Keywords

  • Rocuronium
  • Sugammadex
  • Succinylcholine
  • Cisatracurium
  • Neostigmine
  • acceleromyography (TOF-Watch®)
03

In context

Lead sponsor

Korea University Anam Hospital is the lead sponsor of 110 studies on the registry; 29 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • American Society of Anesthesiologist[ASA] class 1-3
  • scheduled Laser microlaryngeal surgery under general anesthesia
  • written informed consent

Exclusion criteria

Exclusion Criteria:

  • suspected difficult tracheal intubation
  • disorder affecting neuromuscular blockade
  • known or suspected significant renal dysfunction
  • known or suspected severe hepatic dysfunction
  • history of malignant hyperthermia
  • allergy of opioids, neuromuscular blocking drugs or other medications used during general anesthesia
  • contraindication to pyridostigmine and/or atropine
  • pregnancy
  • breast feeding
  • body mass index > 27kg/m2
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Study design

Phase
Phase 4
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
80 participants (actual)

Study arms

  • Experimental
    R-S group

    Rocuronium-Sugammadex group 1. Induction of anesthesia : 1% propofol 1.5-2.5 mg/kg with fentanyl 1.5 mcg/kg 2. Muscle relaxant agent : Rocuronium 1mg/kg 3. After endotracheal intubation : normal saline(0.025 ml/kg) 4. Additive dose, for ensuring that neuromuscular blockade remains below T2 during surgery : Rocuronium 0.15mg/kg 5. Relaxant agent reversal. at the the end of surgery : sugammadex 2mg/kg

    Drug: Sugammadex

  • Active comparator
    S-C-N group

    Succinylcholine-Cisatracurium-Neostigmine group 1. Induction of anesthesia :1% propofol 1.5-2.5 mg/kg with fentanyl 1.5 mcg/kg 2. Muscle relaxant agent :Succinylcholine 1mg/kg 3. After endotracheal intubation : Cisatracurium 0.08mg/kg 4. Additive dose, for ensuring that neuromuscular blockade remains below T2 during surgery : Succinylcholine 10mg 5. Relaxant agent reversal at the appearance of second TOF twitch (T2) : Neostigmine 0.2mg/kg with atropine 10 mcg/kg (for preventing side effects of neostigmine)

    Drug: Neostigmine

Interventions

  • DrugSugammadex

    Sugammadex 2mg/kg was injected to patients to R-S group, as reversal of neuromuscular blockade.

    Also known as: Bridion

  • DrugNeostigmine

    Neostigmine (pyridostigmine) 0.2 mg/kg mg was injected to patients to S-C-N group, as reversal of neuromuscular blockade.

    Also known as: Pyridostigmine(Pyrinol)

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What researchers measure

Primary outcomes

  1. Recovery of T1 to 90%

    we measure the time from the end of surgery to recovery of the TOF 0.9. The end of surgery is defined as the time when the direct laryngoscope, aided by an operation microscope, is removed.

    Time frame: from the end of surgery(when the surgeon removes the suspension laryngoscope ) to time when the TOF ratio is 0.9, up to 30 minutes

  2. Surgical Rating Score

    describe by surgeon under his subjective opinion. 1 - extremely poor conditions 2- poor conditions 3- acceptable conditions 4- good conditions 5- optimal conditions

    Time frame: during surgery

  3. Addition of Neuromuscular Blocking Agents

    Repeated small boluses or drip of Succinylcholine, or small boluses of nondepolarizing muscle relaxants with intermediate duration are usually followed. In this protocol, cisatracurium was injected after intubation to maintain neuromuscular blockade during surgery. We measure the requirement of additive dose of neuromuscular blocker to ensure that neuromuscular blockade remains below T2 during surgery

    Time frame: during surgery

  4. Recovery of T1 to 10%

    we measure the time from the end of surgery to recovery of the TOF 0.1. The end of surgery is defined as the time when the direct laryngoscope, aided by an operation microscope, is removed.

    Time frame: from the end of surgery to time when the TOF ratio is 0.1, up to 30 minutes

Secondary outcomes

  1. Time to Extubation

    We expected the emergence time is shorter in R-S group than S-C-N group. So we measure the time from the end of surgery to recovery of the TOF 0.9, and the time from the end of surgery to extubation

    Time frame: from the end of surgery to extubate a tracheal tube

  2. Time to First Spontaneous Breath

    time from end of surgery to first spontaneous breaths

    Time frame: from end of surgery to first spontaneous breaths

  3. Time to Eye Opening

    We expected the emergence time is shorter in R-S group than S-C-N group. So we measure the time from the end of surgery to opening of the eyes to verbal commands.

    Time frame: from end of surgery to opening of the eyes to verbal commands

Other outcomes

  1. Length of Stay in te Operating Room

    LMS surgery has short operation time and ambulatory setting. So the length of stay in the operating room will have significant. We expected the lengh of stay in the operating room is more shorter in R-S group than S-C-N group.

    Time frame: time from in to out of the operating room

  2. Anesthesia Time

    time from propofol injection to extubation

    Time frame: from the anesthesia start to end

07

Results

Posted Sep 28, 2015
Limitations and caveats
The surgical rating score was assessed on the basis of the degree of laryngx exposure. This was influenced not only by neuromuscular relaxation but also by anatomical factors.

Participant flow

Recruitment period : 2015.2.10 - 2015.6.30 Location : Korea University Medical Center Anam Hospital

Participant flow — Overall Study
MilestoneR-S GroupS-C-N Group
Started4040
Completed4040
Not completed00

Outcome measures

PrimaryRecovery of T1 to 90%

we measure the time from the end of surgery to recovery of the TOF 0.9. The end of surgery is defined as the time when the direct laryngoscope, aided by an operation microscope, is removed.

Time frame:
from the end of surgery(when the surgeon removes the suspension laryngoscope ) to time when the TOF ratio is 0.9, up to 30 minutes
Reported as:
Median · seconds
Recovery of T1 to 90%
secondsR-S GroupS-C-N Group
Recovery of T1 to 90%377 (334 to 435)240 (180 to 360)
PrimarySurgical Rating Score

describe by surgeon under his subjective opinion. 1 - extremely poor conditions 2- poor conditions 3- acceptable conditions 4- good conditions 5- optimal conditions

Time frame:
during surgery
Reported as:
Median · score
Surgical Rating Score
scoreR-S GroupS-C-N Group
Surgical Rating Score5.0 (5.0 to 5.0)5.0 (4.0 to 5.0)
PrimaryAddition of Neuromuscular Blocking Agents

Repeated small boluses or drip of Succinylcholine, or small boluses of nondepolarizing muscle relaxants with intermediate duration are usually followed. In this protocol, cisatracurium was injected after intubation to maintain neuromuscular blockade during surgery. We measure the requirement of additive dose of neuromuscular blocker to ensure that neuromuscular blockade remains below T2 during surgery

Time frame:
during surgery
Reported as:
Number · participants
Addition of Neuromuscular Blocking Agents
participantsR-S GroupS-C-N Group
Addition of Neuromuscular Blocking Agents020
SecondaryTime to Extubation

We expected the emergence time is shorter in R-S group than S-C-N group. So we measure the time from the end of surgery to recovery of the TOF 0.9, and the time from the end of surgery to extubation

Time frame:
from the end of surgery to extubate a tracheal tube
Reported as:
Median · seconds
Time to Extubation
secondsR-S GroupS-C-N Group
Time to Extubation430 (366 to 510)380 (286 to 495)
Other pre-specifiedLength of Stay in te Operating Room

LMS surgery has short operation time and ambulatory setting. So the length of stay in the operating room will have significant. We expected the lengh of stay in the operating room is more shorter in R-S group than S-C-N group.

Time frame:
time from in to out of the operating room
Reported as:
Mean · minutes
Length of Stay in te Operating Room
minutesR-S GroupS-C-N Group
Length of Stay in te Operating Room31.0 ± 7.738.6 ± 7.5
Other pre-specifiedAnesthesia Time

time from propofol injection to extubation

Time frame:
from the anesthesia start to end
Reported as:
Mean · minutes
Anesthesia Time
minutesR-S GroupS-C-N Group
Anesthesia Time28.4 ± 7.535.2 ± 7.0
PrimaryRecovery of T1 to 10%

we measure the time from the end of surgery to recovery of the TOF 0.1. The end of surgery is defined as the time when the direct laryngoscope, aided by an operation microscope, is removed.

Time frame:
from the end of surgery to time when the TOF ratio is 0.1, up to 30 minutes
Reported as:
Median · seconds
Recovery of T1 to 10%
secondsR-S GroupS-C-N Group
Recovery of T1 to 10%271 (183 to 330)190 (105 to 300)
SecondaryTime to First Spontaneous Breath

time from end of surgery to first spontaneous breaths

Time frame:
from end of surgery to first spontaneous breaths
Reported as:
Median · seconds
Time to First Spontaneous Breath
secondsR-S GroupS-C-N Group
Time to First Spontaneous Breath263 (175 to 334)240 (70 to 325)
SecondaryTime to Eye Opening

We expected the emergence time is shorter in R-S group than S-C-N group. So we measure the time from the end of surgery to opening of the eyes to verbal commands.

Time frame:
from end of surgery to opening of the eyes to verbal commands
Reported as:
Median · seconds
Time to Eye Opening
secondsR-S GroupS-C-N Group
Time to Eye Opening340 (200 to 517)300 (180 to 420)

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
R-S Group—0/40 (0%)0/40 (0%)
S-C-N Group—0/40 (0%)0/40 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)R-S GroupS-C-N GroupTotal
<=18 years000
Between 18 and 65 years373269
>=65 years3811
Age, Continuous
Age, Continuous(years)R-S GroupS-C-N GroupTotal
Mean48 ± 1252 ± 1550 ± 13
Sex: Female, Male
Sex: Female, Male(Participants)R-S GroupS-C-N GroupTotal
Female181634
Male222446
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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • Lee C, Jahr JS, Candiotti KA, Warriner B, Zornow MH, Naguib M. Reversal of profound neuromuscular block by sugammadex administered three minutes after rocuronium: a comparison with spontaneous recovery from succinylcholine. Anesthesiology. 2009 May;110(5):1020-5. doi: 10.1097/ALN.0b013e31819dabb0. PubMed 19387176 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02329964
Lead sponsor
Korea University Anam Hospital
Responsible party
Seol Ju, Park (Resident, Korea University Anam Hospital) — Principal investigator
First posted
Jan 1, 2015
Start date
Feb 2015
Primary completion
Aug 2015
Completion
Sep 2016 (estimated)
Results posted
Sep 28, 2015
Last update
Sep 28, 2015

Study contacts

Jangeun Cho, M.D.,Ph.D.
principal investigator · Anesthesia and pain medicine department, Korea University Anam Hospital

Oversight

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

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This study is status unknown, as verified in Aug 2015. You cannot join it, but the record below documents what was studied.

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