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Alcohol Use DisorderREALNCT02881983

Study of Mechanisms of Emotion Regulation in Alcohol-abstinent Patients

An observational study of Alcohol Use Disorder, run by University Hospital, Lille at 2 sites in France.

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

Background: Difficulties in assigning and identifying emotional states, or to regulate the emotional costs are recognized as one of the major factors of relapse. This study aimed to evaluate the emotion regulation processes, in short term (STA, after 1month of withdrawal) and long-term alcohol abstinent individuals… Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Alcohol Use Disorder
What is being tested?
the presentation of pictures (static stimuli) or videos (dynamic stimuli)
How many people
112 participants
Where
2 sitesFrance
Study dates
Apr 2014to Apr 2017
Phase
Observational
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 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: * Short term alcohol abstinent patients (STA, after 1month of withdrawal) * Long-term alcohol abstinent individuals (at least six months of abstinence) * Healthy control participants (C)

Who may be able to join

  • For STA and LTA groups :
  • a diagnosis of severe alcohol use disorder (DSM5 criteria, 2013 confirmed by an addictonologist and a psychologist),
  • successful completion of withdrawal,
  • an intended treatment length of at least 1 month (for the STA group) or at least 6 months (for the LTA group).
  • For Control participants (C) :
  • social drinkers, and were recruited from the general population (e.g. at the university).

Who cannot join

  • with delusional psychiatric disorders (and/or medication for psychiatric disorders (excepted anxiolytics),
  • neurological or cardiological disorders,
  • taking medication that may act on heart rate or alter the regulation of body temperature or cognitive functions,
  • with active co-dependence (except for tobacco)

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • CSAPA

    Lille, 59037

  • CHRU Lille, Fontan2

    Lille

Other trials in France

About this study

Official title: Study of Mechanisms of Emotion Regulation in Short- and Long-term Alcohol-abstinent Patients

Background:

Difficulties in assigning and identifying emotional states, or to regulate the emotional costs are recognized as one of the major factors of relapse. This study aimed to evaluate the emotion regulation processes, in short term (STA, after 1month of withdrawal) and long-term alcohol abstinent individuals (LTA, at least six months of abstinence), compared to healthy control participants (C) in a positive and negative emotion induction protocol.

Read more

Main aim:

Evaluating the emotional regulation deficits assessed with physiological indicators (heart rate variability, electrodermal response, pupil diameter) and clinically in presentations of visual stimuli to emotional value (positive, negative, neutral) in alcohol use disorder's (AUD) patients with short and long term abstinent compared to a control group of healthy subjects. The investigators are particularly interested in the evolution of heart rate variability considered as a good marker of vulnerability to AUD.

Secondary objectives:

Studying the relationships between physiological measures and clinical variables such as behavioral indicators and self-reported assessment of cognitive and emotional skills among the three groups (STA, LTA and C).

Read the detailed description

The recording was performed for all participants during presentation of high emotional inducing stimuli presenting human interactions (pictures and video sequences). For each participant physiological responses (pupil diameter, heart rate, and skin conductance) were recorded before, during and after induction.

Participants were asked to evaluate the intensity and the valence of emotional stimuli.

In addition, a neurological evaluation, a clinical and cognitive assessment were performed.

Neurological, clinical and cognitive evaluation - Each participant had a clinical structured interview, a neurological evaluation, self-administered assessment (Hospital Anxiety \& Depression Scale, Emotional Skills Profile, Obsessive Compulsive Drinking Scale, and cognitive assessment (Montreal Cognitive Assessment).

Physiological assessment - The recording was performed for all participants during the presentation of pictures (static stimuli) or videos (dynamic stimuli) selected according to their high emotional intensity (positive, neutral and negative valence), representing human interactions. For each participant heart rate, electrodermal activity, and pupil diameter were recorded during three experimental conditions: rest, induction (presentation of stimuli) and after induction (recovery). Participants were asked to evaluate the intensity and valence of the pictures and videos using the Self-Assessment Manikin.

Being tested
the presentation of pictures (static stimuli) or videos (dynamic stimuli)
Keywords
alcohol use disorder, emotion processing, abstinence, sympathetic system, parasympathetic system
Medical subject headings
Alcoholism

What participants receive

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

  • the presentation of pictures (static stimuli) or videos (dynamic stimuli)Other

Study groups in NCT02881983
Study groupRoleWhat they receive
STA groupShort-term alcohol abstinent patients (after 1 month of withdrawal)
Receives: Other: the presentation of pictures (static stimuli) or videos (dynamic stimuli)
LTA groupLong-term alcohol abstinent patients (at least 6 months of abstinence)
Receives: Other: the presentation of pictures (static stimuli) or videos (dynamic stimuli)
Control groupHealthy subjects
Receives: Other: the presentation of pictures (static stimuli) or videos (dynamic stimuli)

What is being measured

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

  1. Heart Rate Variability

    High measuring heart rate

    Measured: 3 years

Secondary outcomes (4)
  1. Electrodermal response

    skin conductance

    Measured: 3 years

  2. pupil diameter

    pupil diameter

    Measured: 3 years

  3. HAD score

    Score at the Hospital Anxiety \& Depression Scale

    Measured: 3 years

  4. MocA assessment

    Montréal cognitive Assessement score

    Measured: 3 years

Timeline

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

  1. First posted29 Aug 2016 (estimated)
  2. Study startApr 2014
  3. Primary completionApr 2017
  4. Study completionApr 2017

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
112 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02881983
Sponsor's protocol ID
2013_31
Other IDs
2014-A00105-42
Acronym
REAL
Status last verified
Aug 2017
First submitted
24 Aug 2016
Last updated
25 Aug 2017
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Alcohol Use Disorder, run by University Hospital, Lille at 2 sites in France.

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 6 inclusion and 4 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 25 Aug 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France. 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?

Heart Rate Variability (time frame: 3 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 25 Aug 2017.

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