CClinicalTrials.gg
CompletedNCT02954679ENQUETE-COSYSUpdated Sep 1, 2020

French Study on COgnitive Enhancement and Consumption of Psychoactive Substances Among Youth Students

An observational study in Psychoactive Substances Consumption, Substance-related Disorder and Off Label-use, sponsored by Assistance Publique - Hôpitaux de Paris. Completed at 1 site in France. Open to participants aged 18 Years to 25 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-09-01.

Sponsored by Assistance Publique - Hôpitaux de Paris · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
30,000
Ages
18 Years to 25 Years
Sex
All
01

Study summary

This descriptive and declarative study will help to find out consumption rates, all psychoactive substances taken together, among 18-25 year olds. More specifically, it will allow assessment of the extent of the cognitive enhancement phenomenon among students in France (including study of misuse of methylphenidate (MPH) and modafinil in improvement of cognitive performance).

Read the detailed description

This descriptive and declarative study will help to find out consumption rates, among 18-25 year olds, all psychoactive substances (PAS) taken together. More specifically, it will allow assessment of the extent of the cognitive enhancement phenomenon among students in France (including study of misuse of methylphenidate (MPH) and modafinil, two drugs diverted from their indications for improvement of cognitive performance).

Since Faculties of Sciences and Technics of Physical and Sports Activities (UFR STAPS) are involved in the study, the issue of doping in Sports will also be addressed.

The main aim of this national study will be to assess for two successive academic years the proportion and motives of consumption of PAS as part of cognitive enhancement among students in real life.

Secondary aims will be: assessing consumption of PAS and desired effects when such consumption beyond cognitive enhancement (experimental, recreational, abusive or therapeutic use) but also comparing PAS uses in terms of a variety of characteristics (sex, age, field, year of study) and finally to consider more broadly the health of students in a doping behavior (impact of the use of products on health, whether cognitive enhancement is found to be ethically acceptable or not).

The study will be conducted during a period of 3 years, between September 2016 and September 2019, according to a standardized methodology identical in every school involved and a procedure based on an online self-administrated and anonymous survey questionnaire. The questionnaire, elaborated on Limesurvey®, will be available for two successive academic years for all students aged more than 18 years old. It is set up and hosted on a secured high-capacity web server via the website of AP-HP.

The study will also search to assess the level of representation of the sample of respondents regarding the general population of students. Various criteria: the proportion of subjects by field, the proportion of respondents by study year and the sex ratio will be compared to data of general statistics from the Ministry of Research and Higher Education. A representative sample will allow us to assimilate our respondents to the general population of students and estimate the prevalence of PAS consumption among students.

METHODS

For each product, a descriptive analysis of frequency will be done (consumption pattern, consumer's opinion, feeling of dependency, efficacy of the product). For those most frequently used, complementary analysis will be done in order to identify particular profiles.

On the statistical level, univariate analysis will be performed using the Chi-square test and analysis of variance. Then, multivariate analysis will allow us to study independent factors such as age and study year for instance.

The number of respondents expected is approximately 30 000. The sample will also allow us to identify factors associated with PAS consumption (MPH or modafinil particularly) by multivariate modeling using a "split" of the sample procedure with one half used for the construction of the model and the other for its validation.

02

Conditions studied

  • Psychoactive Substances Consumption
  • Substance-related Disorder
  • Off Label-use
  • Cognitive Enhancement

Keywords

  • Psychoactive Substances Consumption
  • Substance-related Disorder
  • Off label-use
  • Cognitive Enhancement
  • Students
  • Doping
  • Stimulants
  • Drug abuse
  • Methylphenidate
  • Addictovigilance
  • CEIP
03

In context

Substance-Related Disorders

2,124 studies on the registry are indexed under Substance-Related Disorders; 393 are open to participants now.

This study's enrollment of 30,000 is above the median of 250 across 296 observational studies indexed under Substance-Related Disorders.

Browse Substance-Related Disorders studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,505 studies on the registry; 1,006 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 25 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Students 18-25 year olds in Faculties of Sciences and Technics of Physical and Sports Activities (UFR STAPS) are involved in the study, the issue of doping in Sports will also be addressed.

Inclusion criteria

  • Subjects aged more than 18 years old
  • Students (University, BTS, Grandes Ecoles, IFSI, preparatory classes) registered in the ongoing year

Exclusion criteria

Exclusion Criteria:

  • Minor subjects
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
30,000 participants (actual)
Patient registry
No

Interventions

  • OtherOnline self-administrated and anonymous survey questionnaire

    The study will be conducted during a period of 3 years, between September 2016 and September 2019, according to a standardized methodology identical in every school involved and a procedure based on an online self-administrated and anonymous survey questionnaire. The questionnaire, elaborated on Limesurvey®, will be available for two successive academic years for all students aged more than 18 years old.

06

What researchers measure

Primary outcomes

  1. Rate of PAS use for the purpose of cognitive enhancement among students since the beginning of the school year, depending on the school

    Time frame: between January and April 2017 and January and April 2018

Secondary outcomes

  1. Rate of use for each PAS

    Time frame: between January and April 2017 and January and April 2018

  2. Motives of consumption : hedonic (festive, recreational, experimental, boredom management)

    Time frame: between January and April 2017 and January and April 2018

  3. Motives of consumption : performance (creativity, sports, cognition)

    Time frame: between January and April 2017 and January and April 2018

  4. Motives of consumption : therapeutic (sleep disorder, anxiety, sadness, weight control)

    Time frame: between January and April 2017 and January and April 2018

  5. Motives of consumption : social (making friends, being noticed, assertion of identity)control)

    Time frame: between January and April 2017 and January and April 2018

  6. Consumption pattern (dose, route of administration, frequency, way to obtain, associated drugs, period)

    Time frame: between January and April 2017 and January and April 2018

  7. Comparison PAS uses in terms of a variety of characteristics of subjects (sex, age, sector, year of study).

    Time frame: between January and April 2017 and January and April 2018

07

Study locations

1 site
  • CHU Clermont-Ferrand - service de santé publique
    Clermont Ferrand, 63000, France
08

References and documents

Publications

  • Batisse A, Leger S, Vicaut E, Gerbaud L, Djezzar S. COgnitive enhancement and consumption of psychoactive Substances among Youth Students (COSYS): a cross-sectional study in France. Public Health. 2021 May;194:75-78. doi: 10.1016/j.puhe.2021.02.036. Epub 2021 Apr 14. PubMed 33865150 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02954679
Lead sponsor
Assistance Publique - Hôpitaux de Paris
Collaborators
Mission Interministérielle de Lutte contre les Drogues et les Conduites Addictives - MILDECA, Agence Nationale de sécurité du Médicament
Responsible party
Sponsor
First posted
Nov 3, 2016
Start date
Jan 23, 2017
Primary completion
Jul 23, 2019
Completion
Jul 23, 2019
Last update
Sep 1, 2020

Study contacts

DJEZZAR Samira
principal investigator · Assistance Publique - Hôpitaux de Paris

Oversight

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

Not currently enrolling

This study is completed, as verified in Apr 2017. You cannot join it, but the record below documents what was studied.

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