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General AnesthesiaAIVOC-ANINCT01893723

Analgesia Nociception Index Guided Remifentanil Administration During Propofol Anesthesia for Laparoscopic Surgery

A study testing ANI guided remifentanil and ANI blind arm in people with General Anesthesia, run by University Hospital, Lille at 5 sites in 2 countries.

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

The Physiodoloris (MetroDoloris, Lille, France) monitor, CE marqued, uses the ECG signal in order to compute the Analgesia Nociception Index (ANI) which has been shown to measure the relative parasympathetic tone, and hence to reflect the analgesia/nociception balance during general anesthesia. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
General Anesthesia
What is being tested?
ANI guided remifentanil and ANI blind arm
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
37 participants
Where
5 sitesin 2 countries
Study dates
Jun 2012to May 2015
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • laparoscopic cholecystectomy or gynecological laparoscopic surgery
  • ASA I or II
  • adult patient
  • body mass index between 17 and 33 kg/m2

Who cannot join

  • pregnancy
  • arrhythmia
  • pace maker
  • diabetes mellitus
  • dysautonomia
  • treatment with beta blocking agents

Trial locations and contacts

5 sites in 2 countries.

5 sites in 2 countries

France4 sites
  • Clinique privée d'ANTONY

    Antony, 92160

  • University Hospital Claude Huriez

    Lille, 59000

  • University Hospital Roger Salengro

    Lille, 59000

  • University Hospital

    Saint-Etienne, 42270

Other trials in France

Belgium1 site
  • University Hospital Erasme (ULB)

    Brussels, 1070

Other trials in Belgium

About this study

Official title: Analgesia Nociception Index Guided Remifentanil Administration During Propofol Anesthesia for Laparoscopic Surgery : Multicenter Randomized Clinical Trial

The Physiodoloris (MetroDoloris, Lille, France) monitor, CE marqued, uses the ECG signal in order to compute the Analgesia Nociception Index (ANI) which has been shown to measure the relative parasympathetic tone, and hence to reflect the analgesia/nociception balance during general anesthesia. The primary endpoint of this randomized multicenter study is to measure whether there is a benefit to use the ANI in order to adapt remifentanil administration during propofol anesthesia for laparoscopic surgery. Primary endpoint : lesser proportion of patients presenting with at least one episode of hemodynamic reactivity, hypotension or bradycardia in the ANI guided group vs control group ?

Read the detailed description

The Physiodoloris (MetroDoloris, Lille, France) monitor, CE marqued, uses the ECG signal in order to compute the Analgesia Nociception Index (ANI) which has been shown to measure the relative parasympathetic tone, and hence to reflect the analgesia/nociception balance during general anesthesia. The primary endpoint of this randomized multicenter study is to measure whether there is a benefit to use the ANI in order to adapt remifentanil administration during propofol anesthesia for laparoscopic surgery. Primary endpoint is: lesser proportion of patients presenting with at least one episode of hemodynamic reactivity, hypotension or bradycardia in the ANI guided group vs control group ?

Being tested
ANI guided remifentanil, ANI blind arm
Keywords
autonomous nervous system monitoring, analgesia nociception balance, remifentanil, analgesia nociception index, hemodynamic reactivity

What participants receive

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

  • ANI guided remifentanilProcedure or surgery

    remifentanil administration during propofol anesthesia for laparoscopic surgery is ANI guided

  • ANI blind armProcedure or surgery

    remifentanil administration during propofol anesthesia for laparoscopic surgery is not ANI guided

Study groups in NCT01893723
Study groupRoleWhat they receive
ANI guided remifentanil armExperimentalremifentanil targets are increased or decreased depending on ANI readings. In case of high blood pressure associated with elevated ANI, nicardipine is administered.
Receives: Procedure: ANI guided remifentanil
ANI blind armOtherremifentanil target is adapted as is usual during general anesthesia, depending on hemodynamic reactions to nociceptive surgical stimulations. In case of elevated blood pressure despite a maximum target of 10 ng/ml (Minto Pk/pD model), then nicardipine is administered.
Receives: Procedure: ANI blind arm

What is being measured

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

  1. Proportion of patients presenting at least once with hemodynamic reactivity, hypotension or bradycardia

    Measured: end of surgery (around 60 to 90 min after start)

Secondary outcomes (7)
  1. total administered remifentanil

    Measured: end of surgery

  2. number of target changes

    Measured: end of surgery (around 60 to 90 min after start)

  3. morphine sulfate total administration after end of surgery

    Measured: during two hours after end of surgery

  4. Visual Analog Scale evaluation of pain after surgery

    Measured: during two hours after end of surgery

  5. ANI measure during surgery

    Measured: from start to end of surgery (around 60 to 90 min)

  6. number of bradycardia and hypotension

    Measured: from start to end of surgery (around 60 to 90 min )

  7. total administered dose of ephedrine

    Measured: between start and end of anesthesia

Timeline

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

  1. First posted9 Jul 2013 (estimated)
  2. Study startJun 2012
  3. Primary completionMay 2014
  4. Study completionMay 2015

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
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
37 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01893723
Sponsor's protocol ID
2010_51
Other IDs
2011-A00947-34
Acronym
AIVOC-ANI
Status last verified
Apr 2026
First submitted
18 Jun 2013
Last updated
21 Apr 2026
Results posted
No
Data monitoring committee
No

Publications

  • Logier R, De Jonckheere J, Dassonneville A, Jeanne M. Comparison of pulse rate variability and heart rate variability for high frequency content estimation. Annu Int Conf IEEE Eng Med Biol Soc. 2016 Aug;2016:936-939. doi: 10.1109/EMBC.2016.7590855.

    PubMed 28268478

Questions about this trial

What is this clinical trial studying?

A study testing ANI guided remifentanil and ANI blind arm in people with General Anesthesia, run by University Hospital, Lille at 5 sites in 2 countries.

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 4 inclusion and 6 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 21 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in France, Belgium. 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. 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?

Proportion of patients presenting at least once with hemodynamic reactivity, hypotension or bradycardia (time frame: end of surgery (around 60 to 90 min after start)). 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 NCT01893723, which also lists 1 linked publication.

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 21 Apr 2026.

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