SchizophreniaNCT07608250
Research Sense of Familiarity in Psychotic Patients
An observational study of Schizophrenia, run by University Hospital, Lille at 1 site in France.
Trial summary
Categorical perception of familiarity in schizophrenic patients Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Schizophrenia
- What is being tested?
- cognitive test
- How many people
- 30 participants
- Where
- 1 siteFrance
- Study dates
- Jul 2012to Jul 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 years and older
- All sexes
- Adult, Older adult
Study population: patients with a diagnosis of schizophrenia
Who may be able to join
- (a) provide informed consent to participate in the survey, (b) speak French, (c) aged 18 years or older, (d) free of any mental or psychological incapacity to participate due to acute decompensation of a psychiatric disorder or severe substance withdrawal
Who cannot join
- (a) no informed consent to participate in the survey, (b) do not speak French, (c) aged under18 years (d) free of any mental or psychological incapacity to participate due to acute decompensation of a psychiatric disorder or severe substance withdrawal
Trial locations and contacts
1 site in 1 country.
About this study
Categorical perception of familiarity in schizophrenic patients
Read the detailed description
By using a familiarity continuum task based on the existence of the categorical perception effect, the objective of this study was to determine whether SZP present hyper- or hypo-familiarity.
- Conditions
- Schizophrenia
- Being tested
- cognitive test
- Keywords
- Categorical perception; Familiarity; Morph; Schizophrenia.
- Medical subject headings
- Schizophrenia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
cognitive testOther
Also called morphing test
familiarity continuum task based on the existence of the categorical perception effect
What is being measured
The primary outcome is the main question the study is designed to answer.
facial stimuli, which consisted of picture morphs of unfamiliar faces and faces that were personally familiar to the participants. The percentage of the familiar face
contained in the morph ranged from 5 to 95%. The participants were asked to press a button when they felt familiar with the face that was presented.
Measured: at inclusion
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 May 2026
- Study startJul 2012
- Primary completionJul 2017
- Study completionJul 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SchizophreniaStudies of the same condition, open and under way.
- More trials run by University Hospital, LilleThe 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
- Prospective
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Lille
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Pierre Thomas, M, Principal investigator, University Hospital, Lille
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07608250
- Sponsor's protocol ID
- 2009_16
- Other IDs
- 2011-A00026-35
- Status last verified
- Nov 2025
- First submitted
- 23 Nov 2025
- Last updated
- 27 May 2026
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Research Sense of Familiarity in Psychotic Patients
- ClinicalTrials.gov ID
- NCT07608250
- Acronym / sponsor ID
- 2009_16
- Conditions
- Schizophrenia
- Keywords
- Categorical perception; Familiarity; Morph; Schizophrenia.
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- University Hospital, LilleUniversity, hospital or other
- Study start
- Jul 2012
- Primary completion
- Jul 2017 (actual)
- Study completion
- Jul 2017 (actual)
- First posted
- 27 May 2026 (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.
Categorical perception of familiarity in schizophrenic patients
Detailed description
By using a familiarity continuum task based on the existence of the categorical perception effect, the objective of this study was to determine whether SZP present hyper- or hypo-familiarity.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Age groups
- Adult, Older adult
- Study population
- patients with a diagnosis of schizophrenia
Key inclusion criteria (1 listed)
- (a) provide informed consent to participate in the survey, (b) speak French, (c) aged 18 years or older, (d) free of any mental or psychological incapacity to participate due to acute decompensation of a psychiatric disorder or severe substance withdrawal
Key exclusion criteria (1 listed)
- (a) no informed consent to participate in the survey, (b) do not speak French, (c) aged under18 years (d) free of any mental or psychological incapacity to participate due to acute decompensation of a psychiatric disorder or severe substance withdrawal
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| cognitive testAlso: morphing testfamiliarity continuum task based on the existence of the categorical perception effect | Other | – |
Primary outcome
facial stimuli, which consisted of picture morphs of unfamiliar faces and faces that were personally familiar to the participants. The percentage of the familiar face
Time frame: at inclusion
contained in the morph ranged from 5 to 95%. The participants were asked to press a button when they felt familiar with the face that was presented.
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 27 May 2026.
- Individual participant dataSharing planned: No
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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.
Pierre Thomas, M principal investigator
University Hospital, Lille
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 Schizophrenia, run by University Hospital, Lille 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 1 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 27 May 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?
facial stimuli, which consisted of picture morphs of unfamiliar faces and faces that were personally familiar to the participants. The percentage of the familiar face (time frame: at inclusion). 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 27 May 2026.