Behavioral AddictionsEVALADDNCT01248767
A Prospective Clinical Study of a Cohort of Patients Seeking Treatment for a Behavioral Addiction
An observational study of Behavioral Addictions, run by Nantes University Hospital at 1 site in France.
Trial summary
This research aims to provide a better understanding of the factors associated with the evolution of behavioral addictions, and compliance with care. The investigators thus aim to follow patients with several types of behavioral addictions, based on addictive, sociodemographic, clinical and endophenotypical… Read more about this study
- Who is it for?
- Ages 15 years and older
- Conditions the study is for
- Behavioral Addictions
- How many people
- 2,720 participants
- Where
- 1 siteFrance
- Study dates
- 28 Mar 2019to 28 Mar 2029
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 15 years and older
- All sexes
- Child, Adult, Older adult
Study population: Patients seeking treatment for a behavioral addiction
Who may be able to join
- All consecutive patients seeking treatment at the University Hospital of Nantes for a behavioral addiction and age over 15 will be allowed to participate to the study.
Who cannot join
- Cognitive impairment incompatible with the assessment
- Difficulty for writing or reading the French language, incompatible with the assessement
- Gardianship
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site, 1 recruiting
- Recruiting
Nantes University Hospital
Nantes
Marie GRALL-BRONNEC, MD, marie.bronnec@chu-nantes.fr
About this study
Official title: A Prospective Clinical Study of a Cohort of Pathological Patients Seeking Treatment for a Behavioral Addiction in the University Hospital of Nantes
This research aims to provide a better understanding of the factors associated with the evolution of behavioral addictions, and compliance with care. The investigators thus aim to follow patients with several types of behavioral addictions, based on addictive, sociodemographic, clinical and endophenotypical characteristics, as well as their care adhesion.
- Conditions
- Behavioral Addictions
- Keywords
- cohort, cognitive distortions, impulsivity, psychiatric comorbidities, addiction, gambling disorder, sexual addiction, videogame disorder, food addiction, eating disorders, compulsive buying, behavioral addictions
- Medical subject headings
- Impulsive Behavior, Behavior, Addictive, Gambling, Compulsive Sexual Behavior Disorder, Food Addiction, Feeding and Eating Disorders
What is being measured
The primary outcome is the main question the study is designed to answer.
Evolution of behavioral addictions
Understand what determines the evolution of behavioral addictions and compliance with care. Study the outcome of patients with behavioral addictions, both in terms of the evolution of of the addictive pathology and associated clinical and endophenotypic characteristics, as well as adherence to care.
Measured: 8 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Nov 2010 (estimated)
- Study start28 Mar 2019
- Primary completion28 Mar 2029 (estimated)
- Study completion28 Mar 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Behavioral AddictionsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Cohort
- Time perspective
- Other
- Enrolment
- 2,720 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Nantes University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Marie GRALL-BRONNEC, MD, Principal investigator, Nantes University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01248767
- Sponsor's protocol ID
- RC19_0004
- Acronym
- EVALADD
- Status last verified
- Nov 2025
- First submitted
- 24 Nov 2010
- Last updated
- 24 Nov 2025
- Results posted
- No
- Data monitoring committee
- No
Publications
Challet-Bouju G, Caillon J, Leboucher J, Thiabaud E, Saillard A, Balem M, Grall-Bronnec M. Impact of Gambling on the Internet on Middle-Term and Long-Term Recovery from Gambling Disorder: A 2-Year Longitudinal Study. J Gambl Stud. 2025 Jun;41(2):567-592. doi: 10.1007/s10899-024-10328-0. Epub 2024 Sep 10.
PubMed 39254777
Study at a glance
From the registry record, last updated by the sponsor on 24 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective Clinical Study of a Cohort of Pathological Patients Seeking Treatment for a Behavioral Addiction in the University Hospital of Nantes
- ClinicalTrials.gov ID
- NCT01248767
- Acronym / sponsor ID
- EVALADD / RC19_0004
- Conditions
- Behavioral Addictions
- Keywords
- cohort, cognitive distortions, impulsivity, psychiatric comorbidities, addiction, gambling disorder, sexual addiction, videogame disorder
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 2,720 participants (estimated)
- Lead sponsor
- Nantes University HospitalUniversity, hospital or other
- Study start
- 28 Mar 2019 (actual)
- Primary completion
- 28 Mar 2029 (estimated)
- Study completion
- 28 Mar 2029 (estimated)
- First posted
- 25 Nov 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This research aims to provide a better understanding of the factors associated with the evolution of behavioral addictions, and compliance with care. The investigators thus aim to follow patients with several types of behavioral addictions, based on addictive, sociodemographic, clinical and endophenotypical characteristics, as well as their care adhesion.
Study design
- Observational model
- Cohort
- Time perspective
- Other
Who may qualify
- Ages
- 15 years and older
- Sex
- All
- Age groups
- Child, Adult, Older adult
- Study population
- Patients seeking treatment for a behavioral addiction
Key inclusion criteria (1 listed)
- All consecutive patients seeking treatment at the University Hospital of Nantes for a behavioral addiction and age over 15 will be allowed to participate to the study.
Key exclusion criteria (3 listed)
- Cognitive impairment incompatible with the assessment
- Difficulty for writing or reading the French language, incompatible with the assessement
- Gardianship
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Evolution of behavioral addictions
Time frame: 8 years
Understand what determines the evolution of behavioral addictions and compliance with care. Study the outcome of patients with behavioral addictions, both in terms of the evolution of of the addictive pathology and associated clinical and endophenotypic characteristics, as well as adherence to care.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Nov 2025.
- Derived from this study: PubMed 39254777Challet-Bouju G, Caillon J, Leboucher J, Thiabaud E, Saillard A, Balem M, Grall-Bronnec M. Impact of Gambling on the Internet on Middle-Term and Long-Term Recovery from Gambling Disorder: A 2-Year Longitudinal Study. J Gambl Stud. 2025 Jun;41(2):567-592. doi: 10.1007/s10899-024-10328-0. Epub 2024 Sep 10.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Marie GRALL-BRONNEC, MD principal investigator
Nantes University Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Behavioral Addictions, run by Nantes University Hospital at 1 site 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 1 inclusion and 3 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: looking for participants now, as of the sponsor's last update on 24 Nov 2025. 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 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Gaelle CHALLET, PhD (02.40.84.76.20, gaelle.bouju@chu-nantes.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Evolution of behavioral addictions (time frame: 8 years). 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 NCT01248767, 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 24 Nov 2025.