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RecruitingNCT01248767EVALADDUpdated Nov 24, 2025

A Prospective Clinical Study of a Cohort of Patients Seeking Treatment for a Behavioral Addiction

An observational study in Behavioral Addictions, sponsored by Nantes University Hospital. Recruiting at 1 site in France. Open to participants aged 15 Years and older. Per ClinicalTrials.gov, last updated 2025-11-24.

Sponsored by Nantes University Hospital · Observational

From the registry’s dates

  • Started Mar 2019; still recruiting 7 years 7 months later.
Study type
Observational
Model
Cohort
Time perspective
Other
Enrollment
2,720
Ages
15 Years and older
Sex
All
01

Study 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 characteristics, as well as their care adhesion.

02

Conditions studied

  • Behavioral Addictions

Keywords

  • cohort
  • cognitive distortions
  • impulsivity
  • psychiatric comorbidities
  • addiction
  • gambling disorder
  • sexual addiction
  • videogame disorder
  • food addiction
  • eating disorders
  • compulsive buying
  • behavioral addictions
03

In context

Impulsive Behavior

158 studies on the registry are indexed under Impulsive Behavior; 31 are open to participants now.

This study's planned enrollment of 2,720 is above the median of 120 across 24 observational studies indexed under Impulsive Behavior.

Browse Impulsive Behavior studies →

Lead sponsor

Nantes University Hospital is the lead sponsor of 839 studies on the registry; 195 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Patients seeking treatment for a behavioral addiction

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

- 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.

Exclusion criteria

Exclusion Criteria :

  • Cognitive impairment incompatible with the assessment
  • Difficulty for writing or reading the French language, incompatible with the assessement
  • Gardianship
05

Study design

Observational model
Cohort
Time perspective
Other
Enrollment
2,720 participants (estimated)
06

What researchers measure

Primary outcomes

  1. 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.

    Time frame: 8 years

07

Study locations

1 of 1 sites recruiting
08

References and documents

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 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01248767
Responsible party
Sponsor
First posted
Nov 25, 2010
Start date
Mar 28, 2019
Primary completion
Mar 28, 2029 (estimated)
Completion
Mar 28, 2029 (estimated)
Last update
Nov 24, 2025

Study contacts

Gaelle CHALLET, PhD
Contact
gaelle.bouju@chu-nantes.fr
02.40.84.76.20
Marie GRALL-BRONNEC, MD
principal investigator · Nantes University Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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