ClinicalTrials.gg
RecruitingNCT06817980sensdesoiUpdated Aug 20, 2026

Disorders of the Sense of Self and Physical Activity

An interventional study of Physical activity in SCHIZOPHRENIA 1 (Disorder), Borderline Personality Disorder and Vestibular Syndromes, sponsored by University Hospital, Strasbourg, France. Recruiting at 1 site in France. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-20.

Sponsored by University Hospital, Strasbourg, France · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 3 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
168
Allocation
Not applicable
Ages
18 Years to 60 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 32 studies in Borderline Personality Disorder with a site in France — 13 open to participants now, 14 under way, none of them phase 3. Borderline Personality Disorder · France.

Planned enrollment
7th of 24
168 · median 72
Started
2025
the only one that year
No phase
20 of 32
10 open now
Primary completion
2028-09
later than 10 of 13 live
Registered
26th of 32
by date
Lead sponsor
4 of 32
University Hospital, Strasbourg, France

Among the 32 studies in Borderline Personality Disorder with a site in France, this one is the 7th largest by planned enrollment of the 24 interventional ones that give a count, is the only one that started in 2025, is one of 20 with no phase, reaches primary completion later than 10 of the 13 other live ones, and was the 26th registered.

Borderline Personality Disorder

278 studies on the registry are indexed under Borderline Personality Disorder; 70 are open to participants now.

This study's planned enrollment of 168 is above the median of 70 across 221 interventional studies indexed under Borderline Personality Disorder.

Browse Borderline Personality Disorder studies →

Open to participants now

13 of the 32 studies in Borderline Personality Disorder with a site in France are open now.

All 13 open studies →

A study can be open while its sites in France have not opened yet or have stopped. Only those recruiting at a site in France →

Who these studies take

Of the 49 Borderline Personality Disorder studies recruiting now, 18 (37%) set no upper age limit and 30 (61%) stop at 75 or younger; 8 take children under 18; 11 take healthy volunteers.

This study: 18 Years to 60 Years · all sexes · healthy volunteers too.

The full table on the hub →
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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 32 studies in Borderline Personality Disorder with a site in France, or all of them as a file.
02

Study summary

Schizophrenia (SZ) patients with metabolic syndrome, patients with vestibular syndrome, and patients with borderline personality disorder, would benefit from physical activity (PA). Yet patient adherence to PA is low, at least in the case of SZ. the investigators work and the literature lead the investigators to consider that, in addition to motivational aspects, disorders of the bodily sense of self could play a role in this lack of adherence. Simply walking involves visual movements related to the self, which must be distinguished from movements in the environment. This means a distinction between self and not-self. Furthermore, these movements are all the more difficult to distinguish as they may also result from the fact that hidden objects become visible as a result of our own movement. In all sense-of-self disorders can themselves affect physical training, and the investigators will measure them in the first stage. In the second stage, the investigators will apply a standard, risk-free PA protocol by walking (3x3 sessions of 30 min). the investigators will test the impact of physical training on the sense of self under different conditions, with one environment minimizing self-related movement, vs. 2 environments with a variable level of enrichment (i.e. hidden objects inducing more or less self-related movement).

At the end of the protocol, the investigators will offer participants who wish to take part in an ancillary study, i.e. a walking session with mixed-reality goggles. These will superimpose a luminous flux on the periphery of the visual field. According to results obtained in the laboratory, this flux could restore sensory mechanisms impaired in schizophrenia. the investigators will use these glasses in the most difficult condition for the patient, and verify their impact.

03

Conditions studied

  • SCHIZOPHRENIA 1 (Disorder)
  • Borderline Personality Disorder
  • Vestibular Syndromes
04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Criteria common to all participants:
  • Men or women aged 18 to 60 inclusive
  • Subject affiliated to a health insurance scheme, beneficiary or beneficiary's beneficiary
  • Able to understand the aims and risks of the research, and to give
  • Visual acuity > 0.7 on the Freiburg Vision Test (Bach 1996) due to the use of visual equipment
  • (body mass index) \< 40 (due to cardiovascular risk).

Patient-specific criteria:

  • With schizophrenia: criteria for schizophrenia as defined in the DSMV (American Psychiatric Association, 2015)
  • With borderline personality disorder: criteria for borderline personality disorder as defined in the DSMV (American Psychiatric Association, 2015)
  • With vestibular disorders: peripheral vestibular disorders established after otolaryngological examination

Exclusion criteria

Exclusion Criteria:

  • Criteria common to all participants:
  • Serious or unstabilized somatic pathology (including cardiovascular)
  • History likely to affect cerebral anatomy or to be linked to an abnormality (neonatal suffering, neurosurgical operation, comitiality, stroke...)
  • Presence of joint pain, likely to worsen after exercise
  • - Substance use disorders (as defined by TR)
  • 3D vision disorders as measured by the Wirt stereotest (depth perception at a disparity of at least 80'' arc)
  • Movement perception disorders (correct movement discrimination in less than 75% of trials (cf. § V-2.2)
  • History of general anaesthesia in the 3 months preceding the study
  • History of neurological disease
  • Impossibility of giving the subject informed information (subject in emergency situation)
  • Pregnancy declared by patient
  • Breast-feeding
  • Subject in exclusion period (determined by a previous or current study)
  • Subject hospitalized
  • Subject under court protection

Exclusion criteria specific to control subjects or patients with vestibular syndrome:

History of major psychiatric pathology with current psychotropic medication (i.e., antidepressant, thymoregulator, antipsychotic)

Terms in these criteria, in plain language(3)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

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.

05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
168 participants (estimated)

Study arms

  • Experimental
    Self and physical activity protocol

    Behavioral: Physical activity

Interventions

  • BehavioralPhysical activity

    \- Physical activity: We will compare the impact of 3 different environments (with no object in the environment, vs. with some objects but no hidden objects vs. with objects at the fore- and background) during (total of 9 sessions of 30 minutes + 3\*5 minutes of testing), on the measure of self (see below). Visit 10: We will repeat a walking session. Participants will wear mixed-reality goggles, which allow them to visualize the environment and superimpose a continuous stream of light. This session is intended to test the idea that this flow would enable SZ patients to suffer less from the discontinuous appearance of information when moving around. Measure of 'self' : the participants will decide whether the line presented on a computer screen is static or moving. They will be immobile, walking on the spot in front of the computer, or passively mobilized with a whole-body movement platform. The latter condition will be used only in the first phase of the protocol

06

What researchers measure

Primary outcomes

  1. Impact of physical activity on the 'self' measure

    Quantification of the d' index, which represents the ability to discriminate between moving and static lines (whose movement is only related to one's own displacement, which induces a mirror movement on the retina). The d' will be measured three times per PA session, and in all 3 sessions per condition (neutral vs. enriched, with increasing complexity of self-related movements). The evaluation criterion will be the evolution of the d' index over the course of the PA training sessions in the 3 conditions.

    Time frame: Day 0

  2. Impact of physical activity on the 'self' measure

    Quantification of the d' index, which represents the ability to discriminate between moving and static lines (whose movement is only related to one's own displacement, which induces a mirror movement on the retina). The d' will be measured three times per PA session, and in all 3 sessions per condition (neutral vs. enriched, with increasing complexity of self-related movements). The evaluation criterion will be the evolution of the d' index over the course of the PA training sessions in the 3 conditions.

    Time frame: between Day 0 and Month 3

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2025 (actual). Primary completion is estimated for Sep 2028, 36 months after the start.

Of 105 non-industry interventional studies with no phase under Borderline Personality Disorder, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 54. This study's planned 36 months is close to that.

Counting every sponsor, half of 107 studies reached it within 35 months; a quarter within 24 and three quarters within 54.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 16, 2024
First posted
Feb 10, 2025
StartActual
Aug 11, 2025
Primary completionEst.
Sep 1, 2028
CompletionEst.
Sep 1, 2028
Last update
Aug 20, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06817980
Responsible party
Sponsor
First posted
Feb 10, 2025
Start date
Aug 11, 2025
Primary completion
Sep 1, 2028 (estimated)
Completion
Sep 1, 2028 (estimated)
Last update
Aug 20, 2026

Study contacts

Sarah Hustache
Contact
dpidrci@chru-strasbourg.fr
0388116768
Marius Teletin, MD
Contact
marius.teletin@chru-strasbourg.fr

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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