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SchizophreniaSPIRITNCT04968223

Neural Correlates of Social Touch and Interoceptive Perception As Potential Biomarker for Impaired Social Functioning

An observational study of Schizophrenia, run by University of Oldenburg at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Recent studies have shown that certain biomarkers of schizophrenia could help to better assess the individual course of the disease and thus, contribute to more personalized treatment options. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Schizophrenia
How many people
106 participants
Where
1 siteGermany
Study dates
16 Aug 2021to 30 Nov 2024
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 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: In- and outpatients of the Department of Psychiatry, University of Oldenburg. Patients meeting the criteria for schizophrenia or schizoaffective disorder according to DSM-V will be included in the study. The patients' diagnosis will be verified via the structured clinical interview for DSM-V. Healthy subjects without family history of psychotic illness (control group). Control group will be matched to the patient sample.

Who may be able to join

  • Participant is able to provide consent.
  • Diagnosis of schizophrenia or schizoaffective disorder according to DSM-V
  • Control group: No psychiatric or neurological illness.
  • Fluent in German.

Who cannot join

  • The participant does not fulfill requirements for MRI measurements according to safety guidelines.
  • Acute suicidality.
  • Current substance dependence.
  • A history of head trauma or neurological illness.

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Department of Psychiatry, University of Oldenburg

    Bad Zwischenahn, 26160

Other trials in Germany

About this study

Recent studies have shown that certain biomarkers of schizophrenia could help to better assess the individual course of the disease and thus, contribute to more personalized treatment options. The aim of the SPIRIT study is to identify potential biomarkers for the prediction of disease-associated outcomes by investigating the neurobiological mechanisms of underlying schizophrenia-related dysfunctions.

Read the detailed description

Alterations in psychosocial functioning are evident from the prodromal phase of schizophrenia and play a crucial role in its chronic course. While recent studies have demonstrated the predictive validity of structural changes in the brain anatomy of patients with schizophrenia, there is a lack of studies assessing the predictive value of disease-associated alterations in the functional brain activity for symptom severity and psychosocial functioning in schizophrenia.

In this longitudinal, observational study, 60 patients with schizophrenia and 40 healthy subjects without family history of psychotic illness will be recruited to investigate differences in behavioural, physiological, and neural correlates of social touch and interoceptive perception between participant groups. Participants' symptom severity and psychosocial functioning level will be examined by a wide range of behavioural, physiological, and neural methods. Potential biomarkers will be identified by estimating the predictive value of initially performed methods on follow-up re-examination of clinical and psychosocial outcomes. Neural readouts include structural and functional magnetic resonance imaging (fMRI) measurements. The fMRI tasks will probe the processing of social touch and interoceptive perception; additionally resting-state connectivity will be assessed. To further investigate pathological distortions of social touch and interoceptive perception, bodily touch allowance maps will be measured and participants will perform a heart-beat discrimination task. Psychometric questionnaires and semi-structured interviews will be used to capture symptom load and level of psychosocial functioning. Long-term effects will be assessed by online questionnaires and semi-structured interviews via phone call 3- and 6 months after initial assessments. The investigators hypothesize that differences in the neural response to social touch as well as in the neural patterns of interoceptive perception could serve as potential biomarkers for psychosocial deficits during the course of the illness. Furthermore, the inclusion of those biomarkers in predictive models could improve the prediction of disease progression and thus, contribute to personalized therapy.

Conditions
Schizophrenia
Keywords
Biomarker-based prediction, Precision Psychiatry, Schizophrenia, Social functioning, Social Touch, Interoception, fMRI
Medical subject headings
Schizophrenia, Social Adjustment

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04968223
Study groupRoleWhat they receive
Patient GroupPatients with Schizophrenia
Control GroupHealthy subjects without family history of psychotic illness

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Neural responses in a social touch task

    Participants will be measured with functional magnetic resonance imaging (fMRI) while they perceive different types of social and non-social touch

    Measured: One-time baseline assessment

  2. Behavioral responses in a social touch fMRI task

    Measured as behavioral ratings during the social touch fMRI task. During the social touch fMRI task, participants rate the comfort of the tactile stimuli on a visual analogue scale.

    Measured: One-time baseline assessment

  3. Neural responses in an interoception fMRI task

    Participants will be measured with functional magnetic resonance imaging (fMRI) while they perform an interoception task

    Measured: One-time baseline assessment

  4. Behavioral responses in an interoception fMRI task

    Measured by performance on the interoception task. During the interoception fMRI task, participants rate how intensely they perceived their heartbeat or their stomach on a visual analogue scale.

    Measured: One-time baseline assessment

  5. Changes in clinician-rated symptom severity between baseline and follow-ups

    Measured by half-structured interviews (e.g. Positive and Negative Syndrome Scale (PANSS); range: 30-210; higher scores indicating more severe symptoms) for disease-related symptoms

    Measured: Baseline, 3 and 6 months follow- up after initial baseline assessment

  6. Changes in self-reported symptom severity between baseline and follow-ups

    Measured by self-evaluation questionnaires (e.g. Self-assessment of Negative Symptoms (SNS); range 1-20; higher scores indicating more severe symptoms) for disease-related symptoms

    Measured: Baseline, 3 and 6 months follow- up after initial baseline assessment

  7. Changes in clinician-rated social-role functioning between baseline and follow-ups

    Measured by the clinician-rated the social-role functioning scale (range: 1-10; higher scores indicating higher functioning)

    Measured: Baseline, 3 and 6 months follow- up after initial baseline assessment

  8. Changes in self-reported social-role functioning levels between baseline and follow-ups

    Measured by the self-evaluation questionnaires for social-role functioning (e.g. Social Network Index (SNI); range 1-12; higher scores indicating higher functioning)

    Measured: Baseline, 3 and 6 months follow-up after initial baseline assessment

Secondary outcomes (8)
  1. Bodily maps of social touch

    Measured as performance on a bodily maps computer task

    Measured: One-time baseline assessment

  2. Attitude towards social touch

    Measured by the self-evaluation questionnaire for social touch tolerance (e.g. Social Touch Questionnaire; range 0-4; higher scores indicating higher touch tolerance)

    Measured: One-time baseline assessment

  3. Interoceptive accuracy

    Measured as performance on a heartbeat discrimination task

    Measured: One-time baseline assessment

  4. Interoceptive awareness

    Measured by a self-evaluation questionnaire for interoceptive awareness (e.g. Multidimensional Assessment of Interoceptive Awareness (MAIA); range 0-5; higher scores indicating higher interoceptive awareness)

    Measured: One-time baseline assessment

  5. Blood parameter

    Measured by schizophrenia related, Nuclear Magnetic Resonance spectroscopy (NMR) based metabolomics

    Measured: One-time baseline assessment

  6. Urine parameter

    Measured by schizophrenia related, Nuclear Magnetic Resonance spectroscopy (NMR) based metabolomics

    Measured: One-time baseline assessment

  7. Neural activity at resting state

    fMRI will be performed to measure BOLD-signal while participants lay in the MRI-scanner with eyes open.

    Measured: One-time baseline assessment

  8. Structural connectivity measure

    fMRI will be performed to measure BOLD-signal while participants lay in the MRI-scanner with eyes open.

    Measured: One-time baseline assessment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jul 2021
  2. Study start16 Aug 2021
  3. Primary completion15 May 2024
  4. Study completion30 Nov 2024

Resources

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
106 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04968223
Sponsor's protocol ID
SPIRIT
Acronym
SPIRIT
Status last verified
Dec 2024
First submitted
11 Jun 2021
Last updated
9 Dec 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Schizophrenia, run by University of Oldenburg at 1 site in Germany.

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 4 inclusion and 4 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 9 Dec 2024. 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 Germany. 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?

Neural responses in a social touch task (time frame: One-time baseline assessment). The study lists 8 primary outcomes in all. 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 9 Dec 2024.

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