An interventional study of Selective Serotonin Reuptake Inhibitors (SSRIs) or serotonergic antidepressants and Experimental tasks in Depression Disorder, sponsored by Hôpital le Vinatier. Not yet recruiting at 1 site in France. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-21.
Sponsored by Hôpital le Vinatier · Not applicable, Interventional, and Basic science
The goal of this observational study is to better understand cognitive and affective processes involved in depression, in particular how individuals estimate their perception of control over events in their environment, as well as related processes such as memory and decision-making. The study also aims to investigate how these processes are affected by antidepressant treatment and how depressive symptoms evolve over time, as well as whether specific peripheral markers (including hormones) are associated with treatment effects.
The main questions it aims to answer are:
How do individuals with a depressive episode differ from healthy controls in their estimation of control over environmental events? How does antidepressant treatment (selective serotonin reuptake inhibitors) influence perceived control, cognitive performance, and depressive symptoms over time? Are changes in perceived control and symptoms associated with biological markers measured during the study?
Researchers will compare participants with a current depressive episode to healthy control participants, and examine changes over time in the depressed group before and after treatment initiation, in order to assess the effects of antidepressant treatment on cognition, perceived control, and symptoms.
Participants will:
8,577 studies on the registry are indexed under Depression; 1,720 are open to participants now.
This study's planned enrollment of 124 is above the median of 81 across 7,063 interventional studies indexed under Depression.
Browse Depression studies →Hôpital le Vinatier is the lead sponsor of 106 studies on the registry; 41 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Inclusion Criteria - applicable to all participants:
Additional inclusion criteria for the depressed patient group:
Exclusion criteria applicable to all participants:
Additional exclusion criteria for the depressed patient group
Additional exclusion criteria for the healthy volunteer group :
Current or previous diagnosis of a depressive or anxiety disorder.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
DSM diagnostic criteria
The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Patients presenting a depressive episode and receiving serotonergic antidepressant treatment
Drug: Selective Serotonin Reuptake Inhibitors (SSRIs) or serotonergic antidepressants · Other: Experimental tasks
Healthy participants who are not receiving serotonergic antidepressant treatment.
Other: Experimental tasks
Participants are prescribed serotonergic antidepressants such as fluoxetine, sertraline, escitalopram, paroxetine, or serotonin-norepinephrine reuptake inhibitor (SNRI). Dosage, formulation, frequency, and treatment duration are determined by the treating clinician. No experimental manipulation of medication is performed within the study. The intervention is characterized to assess its association with cognitive performance, reaction time (RT), accuracy, and controllability-related decision-making.
Experimental tasks assessing cognition, decision-making, and perceived controllability.
Controllability Estimation Bias in depressed patients
normalization of the controllability estimation bias in patients with depression after 8 weeks of treatment with a selective serotonin reuptake inhibitor (SSRI) or a serotonin-norepinephrine reuptake inhibitor (SNRI). The assessment of controllability is not obtained directly from the participant, but through a computational model inferred from their behavioural data (reaction time (RT), prediction accuracy (percentage of correct responses) and error rate)
Time frame: Change between baseline and week 8
Controllability Estimation Bias in Depressed Patients vs Healthy Controls
This measure compares the controllability estimation bias between participants with a current depressive episode and healthy controls using a behavioral task assessing perceived control over environmental outcomes
Time frame: Baseline
Plan to share: Undecided
No publications or documents are linked to this record.
Start is estimated for Sep 2026; primary completion for Dec 2029, 39 months later.
Of 3,468 non-industry interventional studies with no phase under Depression, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 41. This study's planned 39 months is above that.
Counting every sponsor, half of 3,566 studies reached it within 21 months; a quarter within 9 and three quarters within 41.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: SSRIs