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Pain, AcuteNCT05049577

Preanesthetic Analgesia/Nociception Index (ANI) and Propofol Injection Pain

A study testing Analgesia/Nociception Index (ANI) in people with Pain, Acute and Analgesia, run by Wonkwang University Hospital at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Recently, Analgesia Nociception Index (ANI) has been evaluated for objectively measuring peri-operative pain and to guide intra-operative opioid administration during various surgeries. Propofol injection pain (PIP) is a common problem and can be very distressing to the patient. Read more about this study

Who is it for?
Ages 19 to 60 years, men onlyHealthy volunteers can take part
Conditions the study is for
Pain, Acute, Analgesia, Nociceptive Pain
What is being tested?
Analgesia/Nociception Index (ANI)
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
124 participants
Where
1 siteSouth Korea
Study dates
1 Apr 2023to 30 Jun 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 19 to 60 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male patients who scheduled for general anesthesia
  • Cognitive patients who could understand this study

Who cannot join

  • Patients receiving β-receptor blockers, ketamine, clonidine, or any vasoactive substance (i.e. metaraminol, ephedrine) and patients receiving neostigmine, atropine or glycopyrrolate.

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • WonwangUH

    Iksan, Jeollabuk-do, 570-711

Other trials in South Korea

About this study

Official title: Can Preanesthetic Analgesia/Nociception Index (ANI) Predict Propofol Injection Pain

Recently, Analgesia Nociception Index (ANI) has been evaluated for objectively measuring peri-operative pain and to guide intra-operative opioid administration during various surgeries.

Propofol injection pain (PIP) is a common problem and can be very distressing to the patient.

Read the detailed description

This study aimed to the association of preanesthetic ANI scores and PIP in patients who scheduled for general anesthesia.

Before propofol administration in remifentanil group, preanesthetic ANI values (instant and mean) were checked after remifentanil to a target Ce of 4 ng/ml.

Control group received the same volume of saline as remifentanil group. Heart rate and bispectral index were checked as ANI. Point biserial correlation and ROC curve were analyzed.

Being tested
Analgesia/Nociception Index (ANI)
Medical subject headings
Acute Pain, Agnosia, Nociceptive Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Analgesia/Nociception Index (ANI)Device

    Also called ANI MOC-9

    V1 and V5 electrocardiographic positions as per the manufacturer's recommendations. The ANI was continuously recorded and displayed with a frequency of 1 Hz. ANI scores measured immediately before propofol administration, half-dose administration (1mg/kg), and full-dose administration (2mg/kg)of propofol.

Study groups in NCT05049577
Study groupRoleWhat they receive
Control groupPlacebo comparatorTo maintain blinding, in the control group, the remifentanil infusion was replaced with 50 ml of normal saline in 50 ml syringe. The remifentanil (or saline) infusion was run until the pump indicated the target Ce had been achieved. Pharmacokinetic model for remifentanil was the Minto model (Height, Weight, and Age) Anesthesia in all patients was induced using 2 mg/kg of 2% propofol. The attending anesthesiologist asked the patients how they felt pain to evaluate pain severity of PIP while half -dose of propofol was administered. After the rest of the propofol was administered, the attending anesthesiologists asked the same question.
Receives: Device: Analgesia/Nociception Index (ANI)
Remifentanil groupExperimentalRemifentanil 1 mg was diluted into 50 ml of normal saline. A commercial TCI pump (Orchestra Base Primea, Fresenius Vial, France) was used for the effect-site TCI of remifentanil. The study groups received remifentanil to a target Ce of 4 ng/ ml. Pharmacokinetic model for remifentanil was the Minto model (Height, Weight, and Age) Anesthesia induction and the evaluation of pain were same as control group
Receives: Device: Analgesia/Nociception Index (ANI)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The correlation of Analgesia/nociception Index (ANI) and Propofol injection pain (PIP)

    The correlation of preanesthetic ANI scores and incidence of PIP.

    Measured: Immediately before administration of propofol (2mg/kg)

Secondary outcomes (2)
  1. Incidence and severity of PIP

    Incidence and severity with numeric rating scales( 0= no pain, 100=worst pain) of propofol injection pain

    Measured: during anesthesia induction ( half-dose (1mg/kg) and full-dose of (2mg/kg) propofol administration)

  2. The correlation of Analgesia/nociception Index (ANI) and Propofol injection pain (PIP)

    The correlation of preanesthetic ANI scores and severity of PIP.

    Measured: Immediately before administration of propofol (2mg/kg)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Sep 2021
  2. Study start1 Apr 2023
  3. Primary completion10 Apr 2023
  4. Study completion30 Jun 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Screening
Allocation
Randomised
Intervention model
Parallel groups
Model description
Prospective randomized and controlled study
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
124 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05049577
Sponsor's protocol ID
WonkwangUH8
Status last verified
Oct 2023
First submitted
24 Aug 2021
Last updated
10 Oct 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: if other researchers ask, a decision will be made after discussion with the co-authors

Publications

  • Chanques G, Tarri T, Ride A, Prades A, De Jong A, Carr J, Molinari N, Jaber S. Analgesia nociception index for the assessment of pain in critically ill patients: a diagnostic accuracy study. Br J Anaesth. 2017 Oct 1;119(4):812-820. doi: 10.1093/bja/aex210.

    PubMed 29121287
  • Ledowski T. Objective monitoring of nociception: a review of current commercial solutions. Br J Anaesth. 2019 Aug;123(2):e312-e321. doi: 10.1016/j.bja.2019.03.024. Epub 2019 Apr 30.

    PubMed 31047645
  • Abdullayev R, Yildirim E, Celik B, Topcu Sarica L. Analgesia Nociception Index: Heart Rate Variability Analysis of Emotional Status. Cureus. 2019 Apr 2;11(4):e4365. doi: 10.7759/cureus.4365.

    PubMed 31192070

Questions about this trial

What is this clinical trial studying?

A study testing Analgesia/Nociception Index (ANI) in people with Pain, Acute and Analgesia, run by Wonkwang University Hospital at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 10 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The correlation of Analgesia/nociception Index (ANI) and Propofol injection pain (PIP) (time frame: Immediately before administration of propofol (2mg/kg)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05049577, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Oct 2023.

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