A Prospective, Multi-center, Randomized Controlled Study of Muscle Relaxation Effect and Safety of Mivacurium Chloride in Pediatric Surgery Patients

Brief Summary

To evaluate the effect and safety of mivacurium chloride in pediatric patients.

Intervention / Treatment

  • mivacurium chloride (DRUG)
    intravenously injected during induction with the dose according to allocated group, and intravenously injected with the dose of 0.1 mg/kg when T1 recovers to 25% during period of maintenance.
  • Midazolam (DRUG)
    Before induction: after moving into operating room, oral administration with dose of 0.5 mg/kg or mixed with ketamine (midazolam 10 mg+ ketamine 100 mg) with dose of 0.1 ml/kg by intramuscular route for uncooperative children Induction: for children who didn't receive mixture of midazolam and ketamine before induction, it will be given with the dose of 0.05 ml/kg
  • Ketamine (DRUG)
    mixed with ketamine (midazolam 10 mg+ ketamine 100 mg) with dose of 0.1 ml/kg by intramuscular route for uncooperative children Induction: for children who didn't receive mixture of midazolam and ketamine before induction, it will be given with the dose of 0.05 ml/kg
  • Propofol (DRUG)
    Induction: 2 to 3 mg/kg Maintenance: 50 to 100 mcg/kg/min
  • Remifentanil (DRUG)
    Induction: 2 mcg/kg Maintenance: 0.1 to 0.3 mcg/kg/min

Condition or Disease

  • Efficacy and Safety of Mivacurium Chloride for Pediatric Patients

Phase

  • Phase 4
  • Study Design

    Study type: INTERVENTIONAL
    Status: Completed
    Study results: No Results Available
    Age: 2 Months to 14 Years
    Enrollment: 1152 (ACTUAL)
    Funded by: Industry
    Allocation: Randomized
    Primary Purpose: Treatment

    Masking

    DOUBLE:
    • Participant
    • Investigator

    Clinical Trial Dates

    Start date: Jan 01, 2012
    Primary Completion: Jun 01, 2013 ACTUAL
    Completion Date: Jun 01, 2013 ACTUAL
    Study First Posted: Apr 21, 2014 ESTIMATED
    Results First Posted: Aug 31, 2020
    Last Updated: Jul 14, 2014

    Sponsors / Collaborators

    Lead sponsor is responsible party
    Responsible Party: N/A

    Participant Groups

    • age: 2 to 12 months induction dosage of mivacurium chloride: 0.15 mg/kg administration: intravenous injection for 20 s

    • age: 2 to 12 months induction dosage of mivacurium chloride: 0.15 mg/kg administration: intravenous injection for 40 s

    • age: 2 to 12 months induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 20 s

    • age: 2 to 12 months induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 40 s

    • age: 13 to 35 months induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 20 s

    • age: 13 to 35 months induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 40 s

    • age: 13 to 35 months induction dosage of mivacurium chloride: 0.25 mg/kg administration: intravenous injection for 20 s

    • age: 13 to 35 months induction dosage of mivacurium chloride: 0.25 mg/kg administration: intravenous injection for 40 s

    • age: 3 to 6 years induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 20 s

    • age: 3 to 6 years induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 40 s

    • age: 3 to 6 years induction dosage of mivacurium chloride: 0.25 mg/kg administration: intravenous injection for 20 s

    • age: 3 to 6 years induction dosage of mivacurium chloride: 0.25 mg/kg administration: intravenous injection for 40 s

    • age: 7 to 14 years induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 20 s

    • age: 7 to 14 years induction dosage of mivacurium chloride: 0.20 mg/kg administration: intravenous injection for 40 s

    • age: 7 to 14 years induction dosage of mivacurium chloride: 0.25 mg/kg administration: intravenous injection for 20 s

    • age: 7 to 14 years induction dosage of mivacurium chloride: 0.25 mg/kg administration: intravenous injection for 40 s

    Eligibility Criteria

    Sex: All
    Maximum Age: 14
    Age Groups: Child
    Healthy Volunteers: Yes

    Inclusion Criteria:

    * The parent/guardian must sign a parental permission consent document
    * American Society of Anesthesiologists (ASA) physical status class 1-3
    * Elective surgery patients with tracheal intubation, and the operation duration is expected to be longer than 30 min but no longer than 120 min(cleft lip and palate, orthopedic, bilateral hernia, bilateral cryptorchidism, hypospadias crack, and other ear, nose and throat surgery, etc)
    * Age between 2 months to 14 Years

    Exclusion Criteria:

    * BMI\<18kg/m2 or BMI\>31kg/m2
    * Patients with serious respiratory, cardiovascular disease, and liver and kidney dysfunction\[AST(glutamic oxalacetic transaminase),ALT(glutamic-pyruvic transaminase)\>1.5 Normal;BUN(blood urea nitrogen)\>Normal)\]
    * Patients with asthma or airway hyperresponsiveness, neuromuscular patients disease or cachexia
    * Preoperative hemoglobin less than 10g/L
    * Hypoproteinemia TP(total protein) \<45g/L
    * Diabetic patients
    * Patients with difficulty airway
    * Patients with Known or suspected atypical plasma cholinesterase gene homozygous
    * Burn patients
    * Patients with serious acid-base imbalances, or severe electrolyte imbalance
    * Patients with neuromuscular relaxants in a week
    * Patients prohibited with muscle relaxants, or allergy to any component of mivacurium
    * Patients participated in any drug clinical trial with 30 days before the start of the study
    * Other situations not suitable for inclusion
    * Blood loss more than 10 ml/kg in surgery

    Primary Outcomes
    • Krieg Tracheal Intubation Score * Score : 1 2 3 4 * Laryngoscopy : Easy Fair Difficult Impossible * Vocal cords: Open Moving Closing Closed * Coughing: None Diaphragm Mild Severe * A total score of 3-4 = excellent, 5-7 = good, 8-10 = poor, 11-12 = bad.

    • * Recording T1 and TOFR(Train of four ratio) before/after the induction of anesthesia -Onset time of Mivacurium:time from end of injection until occurrence of maxi- mum block * Duration of clinical relaxation:time to recovery of Tl(the first response in the TOF) to 25% * Recovery index:Time interval during with T1 recovered from 25%

    More Details

    NCT Number: NCT02117401
    Other IDs: 20121101
    Study URL: https://clinicaltrials.gov/study/NCT02117401
    Last updated: Sep 29, 2023