- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT02536690
Remifentanil and Midazolam on Propofol for Loss of Consciousness
The Effect of Remifentanil and Midazolam on Propofol for Loss of Consciousness During Induction of Anesthesia
Propofol in combination with remifentanil or midazolam can result in synergistic or additive effect.
The patients who are scheduled to undergo general anesthesia are enrolled in this study. 120 patients will be randomly allocated to 3 groups(P, PR, PMR). The patients in group P will receive general anesthesia only with propofol and group PR and PMR will receive 0.25 mcg/kg/min remifentanil infusion prior to propofol. The patients in group PMR will receive 0.03 mg/kg bolus dose of midazolam 1 min after start of the remifentanil infusion. 'Success' is defined as loss of both verbal response and eyelash reflex in 2 min after propofol administration. When 'success', the next patient will receive the same dose(in 18/19 probability) or 0.25 mg/kg lower dose(in 1/19 probability) of propofol. When 'failure', the next patient will receive 0.25 mg/kg higher dose of propofol at induction period.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
Propofol is a well-known induction agent which can provide sound and quick hypnosis with anti-emetic effects. However, dose dependent hypotension or bradycardia have reported while using this agent. Propofol in combination with remifentanil or midazolam can result in synergistic or additive effect. There are not many studies which provide minimum dose of propofol to induce hypnosis in combination with these agents and advantage of the combination.
The patients who are scheduled to undergo general anesthesia are enrolled in this study. 120 patients will be randomly allocated to 3 groups(P, PR, PMR). Sample size have been decided due to the previous studies which have mentioned 40 participants as a adequate sample size for this biased coin design - up and down study.
After receiving informed consent, patients will be participated in this study. No premedication will be given to the patients before induction. The patients in group P will receive general anesthesia only with propofol and group PR and PMR will receive 0.25 mcg/kg/min remifentanil infusion for 5 min prior to propofol administration. The patients in group PMR will receive 0.03 mg/kg bolus dose of midazolam 1 min after the start of the remifentanil infusion. Initial propofol dose will be 1 mg/kg in each group and the dose will be changed by the result of prior study participant.
'Success' of this study will be defined as loss of both verbal response and eyelash reflex in 2 min after propofol administration. When 'success', the next patient will receive the same dose(in 18/19 probability) or 0.25 mg/kg lower dose(in 1/19 probability) of propofol. When 'failure', the next patient will receive 0.25 mg/kg higher dose of propofol at induction period.
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
Gangnam-gu
-
Seoul, Gangnam-gu, Korea, Republiken av, 135-720
- Gangnam Severance Hospital
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- The patients who are scheduled to undergo general anesthesia for a surgery.
Exclusion Criteria:
- ASA class (American Society of Anesthesiologist physical status classification) II or higher
- Patients with history of allergy or side effects on propofol, remifentanil, midazolam
- BMI (body mass index) less than 20 or higher than 30
- Pregnancy
- Patients taking sedatives or hypnotic agents.
Studieplan
Hur är studien utformad?
Designdetaljer
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Dubbel
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Aktiv komparator: Group P
Induction with propofol bolus.
Dose will be started at 1 mg/kg and will be adjusted as described in summary.
|
Propofol bolusdosadministrering enligt den förutbestämda dosen genom biased myntad design upp-och-ner studie.
Andra namn:
|
|
Aktiv komparator: Group PR
Induction with propofol and remifentanil.
Remifentanil infusion 0.25 mcg/kg/min for 5 min followed by propofol bolus Propofol dose will be started at 1 mg/kg and will be adjusted as described in summary.
|
Propofol bolusdosadministrering enligt den förutbestämda dosen genom biased myntad design upp-och-ner studie.
Andra namn:
Remifentanil 0.25 mcg/kg/min infusion for 5 min before propofol administration.
Andra namn:
|
|
Aktiv komparator: Group PMR
Induction with propofol, midazolam and remifentanil. Remifentanil infusion 0.25 mcg/kg/min for 5 min followed by midazolam 0.03 mg/kg bolus 1 min after remifentanil infusion start and propofol bolus administration. Propofol dose will be started at 1 mg/kg and will be adjusted as described in summary. |
Propofol bolusdosadministrering enligt den förutbestämda dosen genom biased myntad design upp-och-ner studie.
Andra namn:
Remifentanil 0.25 mcg/kg/min infusion for 5 min before propofol administration.
Andra namn:
Remifentanil 0.25 mcg/kg/min infusion for 5 min before propofol administration followed by midazolam 0.03 mg/kg administration 1 min after remifentanil infusion start.
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Loss of verbal response and eyelash reflex
Tidsram: 2 minutes after propofol administration
|
Checking verbal response by verbal stimulation (yes or no) and reflex by palpation of the levator palpebrae (yes or no).
|
2 minutes after propofol administration
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Mean blood pressure
Tidsram: baseline, propofol administration time (Just after finishing monitoring on the patient in P group, 5 minutes after remifentanil infusion start in PR and PMR group), 1 minute and 2 minutes after propofol administration
|
To compare differences among groups in mean blood pressure change (mmHg).
|
baseline, propofol administration time (Just after finishing monitoring on the patient in P group, 5 minutes after remifentanil infusion start in PR and PMR group), 1 minute and 2 minutes after propofol administration
|
|
Heart rate
Tidsram: baseline, propofol administration time (Just after finishing monitoring on the patient in P group, 5 minutes after remifentanil infusion start in PR and PMR group), 1 minute and 2 minutes after propofol administration
|
To compare differences among groups in heart rate change (mmHg).
|
baseline, propofol administration time (Just after finishing monitoring on the patient in P group, 5 minutes after remifentanil infusion start in PR and PMR group), 1 minute and 2 minutes after propofol administration
|
Samarbetspartners och utredare
Sponsor
Utredare
- Studiestol: Dong Woo Han, MD, PhD, Department of Anesthesiology and Pain medicine, Gangnam Severance Hospital, Seoul, Korea
Publikationer och användbara länkar
Allmänna publikationer
- Conway DH, Hasan SK, Simpson ME. Target-controlled propofol requirements at induction of anaesthesia: effect of remifentanil and midazolam. Eur J Anaesthesiol. 2002 Aug;19(8):580-4. doi: 10.1017/s0265021502000935.
- Choi SH, Min KT, Lee JR, Choi KW, Han KH, Kim EH, Oh HJ, Lee JH. Determination of EC95 of remifentanil for smooth emergence from propofol anesthesia in patients undergoing transsphenoidal surgery. J Neurosurg Anesthesiol. 2015 Apr;27(2):160-6. doi: 10.1097/ANA.0000000000000094.
- Koh JC, Park J, Kim NY, You AH, Ko SH, Han DW. Effects of remifentanil with or without midazolam pretreatment on the 95% effective dose of propofol for loss of consciousness during induction: A randomized, clinical trial. Medicine (Baltimore). 2017 Dec;96(49):e9164. doi: 10.1097/MD.0000000000009164.
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
- Sjukdomar i nervsystemet
- Neurologiska manifestationer
- Neurobehavioral manifestationer
- Medvetandestörningar
- Medvetslöshet
- Läkemedels fysiologiska effekter
- Neurotransmittormedel
- Molekylära mekanismer för farmakologisk verkan
- Depressiva medel i centrala nervsystemet
- Agenter från det perifera nervsystemet
- Analgetika
- Sensoriska systemagenter
- Bedövningsmedel, intravenöst
- Anestesimedel, general
- Bedövningsmedel
- Analgetika, Opioid
- Narkotika
- Lugnande medel
- Psykotropa droger
- Hypnotika och lugnande medel
- Adjuvans, anestesi
- Anti-ångest medel
- GABA modulatorer
- GABA-agenter
- Remifentanil
- Midazolam
- Propofol
Andra studie-ID-nummer
- 2015-0183-004
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