Pathogenesis of Pediatric Obsessive-compulsive Disorder: Based on the Microbiota-gut-brain Axis

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age7-17
SponsorShanghai Mental Health Center

About this trial

This study aims to investigate the characteristics of the microbiota-gut-brain axis in pediatric patients with obsessive-compulsive disorder (OCD) through performing an integrated analysis of gut microbiota, serum metabolomics, neuroimaging and electroencephalography (EEG), conducted before and after treatment with selective serotonin reuptake inhibitors (SSRIs). The results will be compared with those of pediatric OCD paitents comorbid with tic disorder (TD) and healthy controls. The findings are expected to further elucidate the potential pathogenesis of OCD, providing a theoretical basis for identifying novel clinical intervention targets and optimizing treatment strategies.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

None

Disqualifiers

History of serious medical, neurological illness or other psychotic disorders other than OCD (tic disorder excepted).

Previous exposure to cognitive behavioral therapy (CBT) for OCD or TD.

serious suicide risk.

Has taken antibiotics, probiotics, prebiotics, corticosteroids, nonsteroidal anti-inflammatory drugs (NSAIDs), or immunosuppressants within the past 8 weeks.

Trial population

Drug-naïve or drug-free pediatric patients with OCD, drug-naïve or drug-free pediatric OCD patients comorbid with TD, and healthy control.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

125 Participants
are grouped into 3 trial groups
Group A: pediatric OCD patients
Group B: pediatric OCD patients comorbid with TD
Group C: healthy controls

Trial outcomes

Primary outcomes

1

Changes in the diversity and composition of the microbiome before and after drug treatment.

The diversity (including alpha-diversity and beta-diversity) and composition will be measured in OCD patients and OCD patients with TD before and after drug treatment, and the results will be compared with those of healthy controls.

Time frame
Before and after treatment with SSRIs for 12 weeks

Secondary outcomes

Other outcomes

Sponsors and contacts

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