Obsessive Compulsive Disorder OCDTHOUGHTSNCT05944172
Impact of Attention on Obsessive Thoughts Through THOUGHT
An observational study of Obsessive Compulsive Disorder OCD, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.
Trial summary
Impact of attention on obsessive through the THOUGHT-scale (Troublesome Human Obsessions and Untargeted General Habitual Thoughts Scale): a description of the content of thoughts according to the level of attention demanded by the environment in patients with obsessive disorder compulsive disorder (OCD) and patients… Read more about this study
- Who is it for?
- Ages 15 years and olderHealthy volunteers can take part
- Conditions the study is for
- Obsessive Compulsive Disorder OCD
- How many people
- 80 participants
- Where
- 1 siteFrance
- Study dates
- 22 Feb 2023to 8 Sep 2023
- 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 15 years and older
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: 40 OCD patients 40 matched healthy controls
Who may be able to join
- For pathological patients:
- Over the age of 15
- Suffering from OCD (obsessive compulsive disorder)
- All comorbidities are possible except schizophrenia, bipolarity and anorexia nervosa
- Consultant or admitted to Albert Chenevier Hospital
- For patients who are not affected by the disease:
- Over 15 years of age
- Consulted or admitted to GH Henri Mondor
Who cannot join
- For pathological patients:
- Refusal to participate by the patient (and/or legal representative in the case of minors)
- Presence of schizophrenia, bipolar or anorexia nervosa
- For patients who are free of these conditions:
- Presence of psychiatric or neurological pathology
- Refusal to participate on the part of the patient (and/or on the part of the legal representative in the case of minors)
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Thoughts Content in OCD: What Links Between Mind Wandering and Obsessions
Impact of attention on obsessive through the THOUGHT-scale (Troublesome Human Obsessions and Untargeted General Habitual Thoughts Scale): a description of the content of thoughts according to the level of attention demanded by the environment in patients with obsessive disorder compulsive disorder (OCD) and patients without OCD" Validation of THOUGHTS.
Read the detailed description
We developed a scale (the THOUGHTS) dedicated to allow a subject to subjectively measure its level of mind wandering/daydreaming (and obsessions in case of OCD patients) during different everyday situations. This scale is developed for 15 years old or older students (high school, university). Indeed, common point in everyday life was easier to find in students than in workers where lifestyle can be very divergent according to the job type. Through this scale, we will first detect the situations the more associated with mind wandering/daydreaming in healthy subjects. To do that, we will first find the 50% and the 25% of the situations the most associated with mind wandering. This step will allow us to distinguish two types of situations: situations with high level of mind wandering/daydreaming vs. situations with low level of mind wandering/daydreaming. Then we will do the same analyses in OCD patients to see if situations of high level of mind wandering are the same in both groups. Finally, we will compare the level of obsessions in OCD patients in these two types of situations (linked with high vs. low mind wandering, as defined by healthy subject, OCD patients and both populations).
To make these analyses, we will recruit 40 young OCD people (still students) from only one center, all diagnosed through DSM-5 criteria by a same senior and experimented child and adolescent psychiatrist and 40 matched healthy subjects.
For OCD patients: all comorbidities will be allowed except those associated with hallucinations or delusions: schizophrenia or bipolar disorder will then not be allowed. Neurological disorders will not be allowed too. Y-BOCS or CY-BOCS will be get and analyzed to find if severity could influence our results.
Healthy controls: they will be recruited to be matched with the OCD patients. No psychiatric or neurologic disorder will be allowed. No psychotropic or neurologic treatment will be allowed.
Finally, in terms of statistics, we will use non parametric tests.
- Conditions
- Obsessive Compulsive Disorder OCD
- Keywords
- OCD, wandering, daydreaming
- Medical subject headings
- Compulsive Personality Disorder
What is being measured
The primary outcome is the main question the study is designed to answer.
Comparison of the obsession level (as measured by the THOUGHTS-scale) in situations associated with high level mind wandering/daydreaming and situations associated with low level of mind wandering/daydreaming
demonstrate that in patients with OCD, the level of presence of obsessions is different during active and passive situations, using the THOUGHT questionnaire - scale.
Measured: metrics are measured only one time, directly after the subject accept to participate to the study.
Secondary outcomes (1)
: Effect of OCD severity on the link between OCD and mind wandering/daydreaming
Separated OCD patients in 2 groups according to their YBOCS severity to see if obsessions replace mind wandering in the same manner (the same situation and at the same level)
Measured: measured only one time, directly after the subject accept to participate to the study.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Jul 2023
- Study start22 Feb 2023
- Primary completion8 Sep 2023
- Study completion8 Sep 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obsessive Compulsive Disorder OCDStudies of the same condition, open and under way.
- More trials run by Assistance Publique - Hôpitaux de ParisThe sponsor's other registered studies.
- 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
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 80 participants (actual)
Sponsor and investigators
- Lead sponsor
- Assistance Publique - Hôpitaux de Paris
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05944172
- Sponsor's protocol ID
- APHP220613
- Acronym
- THOUGHTS
- Status last verified
- Jan 2026
- First submitted
- 10 Feb 2023
- Last updated
- 15 Jan 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 15 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Thoughts Content in OCD: What Links Between Mind Wandering and Obsessions
- ClinicalTrials.gov ID
- NCT05944172
- Acronym / sponsor ID
- THOUGHTS / APHP220613
- Conditions
- Obsessive Compulsive Disorder OCD
- Keywords
- OCD, wandering, daydreaming
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 80 participants (actual)
- Lead sponsor
- Assistance Publique - Hôpitaux de ParisUniversity, hospital or other
- Study start
- 22 Feb 2023 (actual)
- Primary completion
- 8 Sep 2023 (actual)
- Study completion
- 8 Sep 2023 (actual)
- First posted
- 13 Jul 2023 (actual)
- 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.
Impact of attention on obsessive through the THOUGHT-scale (Troublesome Human Obsessions and Untargeted General Habitual Thoughts Scale): a description of the content of thoughts according to the level of attention demanded by the environment in patients with obsessive disorder compulsive disorder (OCD) and patients without OCD" Validation of THOUGHTS.
Detailed description
We developed a scale (the THOUGHTS) dedicated to allow a subject to subjectively measure its level of mind wandering/daydreaming (and obsessions in case of OCD patients) during different everyday situations. This scale is developed for 15 years old or older students (high school, university). Indeed, common point in everyday life was easier to find in students than in workers where lifestyle can be very divergent according to the job type. Through this scale, we will first detect the situations the more associated with mind wandering/daydreaming in healthy subjects. To do that, we will first find the 50% and the 25% of the situations the most associated with mind wandering. This step will allow us to distinguish two types of situations: situations with high level of mind wandering/daydreaming vs. situations with low level of mind wandering/daydreaming. Then we will do the same analyses in OCD patients to see if situations of high level of mind wandering are the same in both groups. Finally, we will compare the level of obsessions in OCD patients in these two types of situations (linked with high vs. low mind wandering, as defined by healthy subject, OCD patients and both populations).
To make these analyses, we will recruit 40 young OCD people (still students) from only one center, all diagnosed through DSM-5 criteria by a same senior and experimented child and adolescent psychiatrist and 40 matched healthy subjects.
For OCD patients: all comorbidities will be allowed except those associated with hallucinations or delusions: schizophrenia or bipolar disorder will then not be allowed. Neurological disorders will not be allowed too. Y-BOCS or CY-BOCS will be get and analyzed to find if severity could influence our results.
Healthy controls: they will be recruited to be matched with the OCD patients. No psychiatric or neurologic disorder will be allowed. No psychotropic or neurologic treatment will be allowed.
Finally, in terms of statistics, we will use non parametric tests.
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 15 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- 40 OCD patients 40 matched healthy controls
Key inclusion criteria (8 listed)
- Over the age of 15
- Suffering from OCD (obsessive compulsive disorder)
- All comorbidities are possible except schizophrenia, bipolarity and anorexia nervosa
- Consultant or admitted to Albert Chenevier Hospital
- Over 15 years of age
Key exclusion criteria (6 listed)
- Refusal to participate by the patient (and/or legal representative in the case of minors)
- Presence of schizophrenia, bipolar or anorexia nervosa
- Presence of psychiatric or neurological pathology
- Refusal to participate on the part of the patient (and/or on the part of the legal representative in the case of minors)
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
Comparison of the obsession level (as measured by the THOUGHTS-scale) in situations associated with high level mind wandering/daydreaming and situations associated with low level of mind wandering/daydreaming
Time frame: metrics are measured only one time, directly after the subject accept to participate to the study.
demonstrate that in patients with OCD, the level of presence of obsessions is different during active and passive situations, using the THOUGHT questionnaire - scale.
1 secondary outcome
: Effect of OCD severity on the link between OCD and mind wandering/daydreaming
Time frame: measured only one time, directly after the subject accept to participate to the study.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Jan 2026.
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
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 Obsessive Compulsive Disorder OCD, run by Assistance Publique - Hôpitaux de Paris 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 8 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 15 Jan 2026. 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?
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?
Comparison of the obsession level (as measured by the THOUGHTS-scale) in situations associated with high level mind wandering/daydreaming and situations associated with low level of mind wandering/daydreaming (time frame: metrics are measured only one time, directly after the subject accept to participate to the study.). 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 15 Jan 2026; AzTrials last refreshed its copy on 6 Nov 2026.