UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000024495
Receipt number R000028185
Scientific Title Comparison of the effect of continuous intravenous infusion and two bolus injections of remifentanil on haemodynamic responses during anaesthesia induction: a prospective open-label randomised trial
Date of disclosure of the study information 2016/10/20
Last modified on 2016/10/19 23:55:20

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Basic information

Public title

Comparison of the effect of continuous intravenous infusion and two bolus injections of remifentanil on haemodynamic responses during anaesthesia induction: a prospective open-label randomised trial

Acronym

Comparison of the effect of continuous intravenous infusion and bolus injections of remifentanil on haemodynamic responses during anaesthesia induction

Scientific Title

Comparison of the effect of continuous intravenous infusion and two bolus injections of remifentanil on haemodynamic responses during anaesthesia induction: a prospective open-label randomised trial

Scientific Title:Acronym

Comparison of the effect of continuous intravenous infusion and bolus injections of remifentanil on haemodynamic responses during anaesthesia induction

Region

Japan


Condition

Condition

Induction of anaesthesia

Classification by specialty

Anesthesiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Remifentanil is a rapid-onset and ultra-short acting opioid. Since laryngoscopy and tracheal intubation can result in tachycardia and hypertension, remifentanil is commonly used not only to maintain anaesthesia, but also to attenuate adverse haemodynamic changes due to tracheal intubation. To raise the effect-site concentration of remifentanil quickly, it is infused at higher concentrations or injected in bolus doses prior to constant continuous infusion. However, differences in haemodynamics during anaesthesia induction between continuous infusion and bolus injection of remifentanil have not yet been investigated. In addition, it remains unclear which method is best suited to hypertensive patients in whom tachycardia and hypertension by intubation may be exaggerated.
The aims of this randomised open-label study were to compare the haemodynamic responses during anaesthesia induction between continuous intravenous infusion and bolus injections of remifentanil in normotensive patients, as well as in treated and untreated hypertensive patients.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

heart rate and non-invasive blood pressure immediately before tracheal intubation

Key secondary outcomes

1) heart rate and blood pressure immediately after tracheal intubation
2) heart rate and blood pressure during anaesthesia induction
3) adverse events (HR or SBP decreased to less than 50 bpm or 70 mmHg)
4) use of ephedrine: If HR or SBP decreased to less than 50 bpm or 70 mmHg respectively, IV of 4 mg ephedrine was deemed necessary


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

YES

Dynamic allocation


Institution consideration


Blocking

YES

Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

remifentanil administration type: the continuous intravenous (IV) infusion group (Group C)

Interventions/Control_2

remifentanil administration type: the IV bolus group (Group B)

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit

90 years-old >

Gender

Male and Female

Key inclusion criteria

American Society of Anesthesiologists physical status (ASA) I-II patients scheduled for elective surgery under general anaesthesia were prospectively enrolled.

Key exclusion criteria

Exclusion criteria included patients younger than 20 years of age and with the presence of cardiovascular or cerebrovascular disease, renal failure, or a predicted difficult airway. If tracheal intubation was not performed within 1 minute, this patient was excluded.

Target sample size

60


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Toyoaki Maruta

Organization

Miyazaki Medical College, University of Miyazaki

Division name

Departments of Anesthesiology

Zip code


Address

Miyazaki 889-1692, Japan

TEL

0985-85-1742

Email

mmctm2@yahoo.co.jp


Public contact

Name of contact person

1st name
Middle name
Last name Toyoaki Maruta

Organization

Miyazaki Medical College, University of Miyazaki

Division name

Departments of Anesthesiology

Zip code


Address

Miyazaki 889-1692, Japan

TEL

0985-85-1742

Homepage URL


Email

mmctm2@yahoo.co.jp


Sponsor or person

Institute

University of Miyazaki

Institute

Department

Personal name



Funding Source

Organization

University of Miyazaki

Organization

Division

Category of Funding Organization

Government offices of other countries

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2016 Year 10 Month 20 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results

A total of 107 patients were recruited from October 2013 to June 2015.There were 82 normotensive patients older than 20 years of age (n = 41 in both groups), 14 treated HT patients (n = 7 in both groups) and 11 untreated HT patients (n = 7 in Group C and n = 4 in Group B). Both the treated and untreated HT subgroups were compared between Group C and Group B. In both normotensive and treated HT patients, there were no significant differences between Group C and Group B in age, gender, height, weight, BMI, and ASA.
Comparisons of HR, SBP, diastolic blood pressure (DBP), and mean blood pressure (MBP) in normotensive patients between Group C and Group B: There were no significant differences between the groups for any parameters at any time points. When compared to baseline, HR was not significantly different at any time points in either group.
Comparisons of HR, SBP, DBP, and MBP within treated and untreated HT patients between Group C and Group B: There were no significant differences between groups for any parameters at any time points in each subgroup.
Use of additional propofol and adverse events including HR < 50 bpm, SBP < 70 mmHg, and use of ephedrine: There were no significant differences between groups in each subgroup.

Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2013 Year 10 Month 03 Day

Date of IRB


Anticipated trial start date

2013 Year 10 Month 18 Day

Last follow-up date

2015 Year 06 Month 18 Day

Date of closure to data entry

2015 Year 06 Month 18 Day

Date trial data considered complete

2016 Year 05 Month 18 Day

Date analysis concluded

2016 Year 05 Month 18 Day


Other

Other related information



Management information

Registered date

2016 Year 10 Month 19 Day

Last modified on

2016 Year 10 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000028185


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name