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Efficacy and Safety of Remifentanil for Mechanically Ventilated Patients in ICU

Phase 3
Conditions
Analgesia
Interventions
Registration Number
NCT05003570
Lead Sponsor
Southeast University, China
Brief Summary

Remifentanil has been approved by the FDA for continuation as an analgesic into the immediate postoperative period in adult patients under the direct supervision of an anesthesia practitioner in a postoperative anesthesia care unit or intensive care setting. However, National Medical Products Administration(NMPA) did not approve this indication. Therefore, the purpose of this study is to confirm the efficacy and safety of remifentanil in the analgesic therapy of critical ill patients in China.

Detailed Description

The study was conducted in accordance with good clinical practice and with the guidelines set out in the Declaration of Helsinki. After approval from local and national ethics committees, patients from 17 centres in China were recruited. All patients were randomized, in a double-blind manner, to receive either a remifentanil-propofol regimen or a fentanyl-propofol regimen for analgesia and sedation in the ICU. The aim of the study was to achieve optimal sedation and patient comfort by maintaining an optimal Critical Care Pain Observation Tool (CPOT) score of 2, without clinically significant pain, until the start of the extubation process or for 72 hours, whichever occurred first. CPOT scoring criteria: Facial expressions(Relaxed, neutral=0; Tense=1; Grimacing=2); Body movements(Absence of movements or normal position=0; Protection=1; Restlessness/Agitation=2); Muscle tension(Relaxed=0; Tense, rigid=1; Very tense or rigid=2); Compliance with the ventilator or Vocalization(Tolerating ventilator or movement/Talking in normal tone or no sound=0; Coughing but tolerating/Sighing, moaning=1; Fighting ventilator/Crying out, sobbing=2).

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
138
Inclusion Criteria
  • Invasive mechanical ventilation with endotracheal intubation
  • Expected to continue mechanical ventilation for more than 12 hours
  • Informed consent/assent was obtained from all patients or their representatives
Exclusion Criteria
  • Patients with a history of allergy to opioids, benzodiazepines, propofol, or alcohol/drug abuse were excluded from the study
  • Patients who are known or suspected to be allergic to the study drug
  • Patients whose expected survival time is less than 48h
  • Patients receiving deep sedation (RASS≥-4)
  • Patients using neuromuscular blocking agent
  • Patients who cannot be assessed by RASS
  • Patients with myasthenia gravis
  • patients with bronchial asthma
  • patients with abdominal compartment syndrome
  • Patients who need surgery or tracheotomy during the study drug treatment period
  • Women during pregnancy and lactation
  • Patients who have used short-acting non-steroidal anti-inflammatory drugs within 6 hours
  • Patients who have used long-acting non-steroidal anti-inflammatory drugs within 12 hours
  • Patients with a history of chronic pain for more than 3 months or who are receiving regular analgesia for more than 3 months
  • Patients who have used monoamine oxidase inhibitors within two weeks
  • Patients who participate in any clinical trials as subjects within 1 month
  • Patients with a history of drug abuse, drug abuse, alcohol abuse* and long-term use of psychotropic drugs within 2 years Alcoholism: Drinking more than 14 times/week (1 time=150ml wine or 360ml beer or 45ml spirits)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
RemifentanilRemifentanilRemifentanil analgesia combined with propofol sedation. Treatment was started in patients with an CPOT score of 2 or greater after completion of baseline assessments. All patients received an initial infusion of blinded opioid (placebo bolus dose(6ml) + 6ug/kg per hour infusion at 6 ml/hour). Optimal analgesia (CPOT score ≤2) was then targeted by titrating the infusion in 1.5 ml/hour increments (placebo bolus dose + 1.5ug/kg per hour rate increase).
FentanylFentanylFentanyl analgesia combined with propofol sedation. Treatment was started in patients with an CPOT score of 2 or greater after completion of baseline assessments. All patients received an initial infusion of blinded opioid (1ug/kg bolus(6ml) + 1ug/kg per hour infusion at 6ml/hour). Optimal analgesia (CPOT score ≤2) was then targeted by titrating the infusion in 1.5 ml/hour increments (1ug/kg bolus dose + 0.25ug/kg per hour rate increase).
Primary Outcome Measures
NameTimeMethod
analgesia success rate(the proportion of subjects with successful analgesia to the number of subjects in each group)From study drug administration to actual extubation , up to 72 hours

Analgesia success is defined as: 1. No salvage analgesics were used during the administration of the study drug; 2 During the administration of the study drug, the time for the analgesia score of subjects to reach the standard (CPOT score ≤ 2) was greater than 70%. CPOT scoring criteria: Facial expressions(Relaxed, neutral=0; Tense=1; Grimacing=2); Body movements(Absence of movements or normal position=0; Protection=1; Restlessness/Agitation=2); Muscle tension(Relaxed=0; Tense, rigid=1; Very tense or rigid=2); Compliance with the ventilator or Vocalization(Tolerating ventilator or movement/Talking in normal tone or no sound=0; Coughing but tolerating/Sighing, moaning=1; Fighting ventilator/Crying out, sobbing=2).

Secondary Outcome Measures
NameTimeMethod
The number of times the remedial sedative drug propofol was usedFrom study drug administration to actual extubation , up to 72 hours

Use the total times of propofol

The proportion of subjects using the salvage sedative drug propofolFrom study drug administration to actual extubation , up to 72 hours

The proportion of subjects who using the salvage sedative drug propofol to the total subjects.

Length of hospital stayFrom administration to discharge hospital, up to 24 weeks

The number of days the subject stayed in the hospital

The incidence of study drug-related Lower blood pressureFrom study drug administration to actual extubation , up to 72 hours

Lower blood pressure: mean arterial pressure (MAP) drops more than 25% from the baseline level or requires additional vasopressors;

During the study drug administration period, the subjects are in the proportion of optimal time(CPOT score≤2)From study drug administration to actual extubation , up to 72 hours

CPOT scoring criteria: Facial expressions(Relaxed, neutral=0; Tense=1; Grimacing=2); Body movements(Absence of movements or normal position=0; Protection=1; Restlessness/Agitation=2); Muscle tension(Relaxed=0; Tense, rigid=1; Very tense or rigid=2); Compliance with the ventilator or Vocalization(Tolerating ventilator or movement/Talking in normal tone or no sound=0; Coughing but tolerating/Sighing, moaning=1; Fighting ventilator/Crying out, sobbing=2).

The dosage of the remedial sedative drug propofolFrom study drug administration to actual extubation , up to 72 hours

Use the total dose of propofol

The proportion of subjects discharging the ICUFrom study drug administration to the time discharge ICU, up to 24 weeks

The proportion of subjects who discharge ICU to the total subjects.

ICU mortalityFrom study drug administration to the time discharge ICU, up to 24 weeks

The proportion of subjects who died during ICU admission to the total subjects.

Hospital mortalityFrom study drug administration to the time discharge hospital, up to 24 weeks

The proportion of subjects who died during hospital admission to the total subjects.

Analysis of the cost-effectiveness between remifentanil and fentanylFrom study drug administration to actual extubation , up to 72 hours

cost-effectiveness

Wearing time from mechanical ventilationFrom study drug administration to wearing from mechanical ventilation, up to 72 hours

Wearing time criteria: The primary disease is improved, and there is no new disease; no use of vasopressors or continuous application of sedative drugs; cough reflex during sputum suction; PEEP≤5cmH2O; PaO2/FiO2≥200mmHg; Minute ventilation\<15L/min; 2-minute spontaneous breathing test and passed.

Extubation timeFrom the start of the extubation process until actual extubation , up to 72 hours

The start of the extubation process until actual extubation

Duration of study drug use in ICUFrom study drug administration to the time discharge ICU , up to 72 hours

The time from the start of the study drug administration to the time discharge ICU.

The success rate of wearing mechanical ventilatorFrom study drug administration to actual extubation , up to 72 hours

The proportion of subjects who successfully wearing from mechanical ventilator to the total subjects.

Length of ICU stayFrom administration to discharge ICU, up to 24 weeks

The number of days the subject stayed in the ICU

The incidence of study drug-related slow heart rateFrom study drug administration to actual extubation , up to 72 hours

Slow heart rate: HR\<40bpm for less than 1 minute or HR\<60 bpm for more than 1 minute;

The incidence of study drug-related respiratory depressionFrom study drug administration to actual extubation , up to 72 hours

Respiratory depression: RR\<10 bpm or SpO2\<90%

Trial Locations

Locations (17)

Affiliated Hospital of Guizhou Medical University

🇨🇳

Guiyang, Guizhou, China

The First Affiliated Hospital of Chongqing Medical University

🇨🇳

Chongqing, Chongqing, China

Anhui Provincial Hospital

🇨🇳

Hefei, Anhui, China

Zhejiang Provincial People's Hospital

🇨🇳

Hangzhou, Zhejiang, China

Beijing Tiantan Hospital, Capital Medical University

🇨🇳

Beijing, Beijing, China

Qingyuan People's Hospital

🇨🇳

Qingyuan, Guangdong, China

Enshi Tujia and Miao Autonomous Prefecture Central Hospital

🇨🇳

Enshi, Hubei, China

First Affiliated Hospital of Zhengzhou University

🇨🇳

Zhengzhou, Henan, China

Yichang Central People's Hospital

🇨🇳

Yichang, Hubei, China

The Third Xiangya Hospital of Central South University

🇨🇳

Changsha, Hunan, China

Nanjing Zhong-Da Hospital, Southeast University

🇨🇳

Nanjing, Jiangsu, China

The First Affiliated Hospital of Wenzhou Medical University

🇨🇳

Wenzhou, Zhejiang, China

Henan Provincial People's Hospital

🇨🇳

Zhengzhou, Henan, China

The Fourth Hospital of Hebei Medical University

🇨🇳

Shijiazhuang, Hebei, China

Affiliated Hospital of Zunyi Medical University

🇨🇳

Zunyi, Guizhou, China

Xiangya Hospital of Central South University

🇨🇳

Changsha, Hunan, China

Northern Jiangsu People's Hospital

🇨🇳

Yangzhou, Jiangsu, China

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