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The goal of this observational study is aimed to develop a novel multimodal neuroimaging-based model to characterize the neurophenotype of Crohn's Disease patients and assess its ability for predicting disease progression, using multiomics data to interpret the model.
Participants will be followed-up of at least six months for patients without disease progression to assess the relationship between neurophenotype and intestinal outcomes.
Brain-gut axis plays a crucial role in the pathogenesis of Crohn's disease (CD); however, CD neurophenotype and its impact on intestinal disease progression remain unclear. We aimed to develop a novel multimodal neuroimaging-based model to characterize the neurophenotype of CD patients and assess its ability for predicting disease progression, using multiomics data to interpret the model. This study enrolled CD patients who underwent baseline testing (including neuroimaging, psychological scales, MR enterography, and ileocolonoscopy) and faecal/blood samples collection. The neurophenotypes of patients were characterized using a neuroimaging-based model. The predictive ability of neurophenotype model for disease progression was evaluated using Cox regression analysis. Multiomics data (including faecal microbiome, faecal/blood metabolomics, intestinal permeability, blood-brain-barrier permeability, and blood neurotransmitter levels) were used to elucidate how neurophenotypes reflect brain-gut interactions.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Crohn's disease patients with no-to-mild inflammation | On MR enterography, the Magnetic Resonance Index of Activity (MaRIA) and Magnetic Resonance Enterography Global Score (MEGS) were used to characterize intestinal inflammation by assessing intramural and extramural lesions in both the small and large intestines. In ileocolonoscopy, the Simplified Endoscopic Activity Score for Crohn's Disease (SES-CD) was used to quantify mucosal or luminal lesions from the terminal ileum to the colorectum. Both modalities were used to classify patients with no-to-mild or moderate-to-severe inflammation. We defined patients as having moderate-to-severe inflammation when at least two of the following criteria were met: (1) MaRIA≥11; (2) MEGS≥ 10 for the small bowel or MEGS≥12 for the colon; or (3) SES-CD≥11. Otherwise, patients were categorized as having no-to-mild inflammation. |
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| Crohn's disease patients with moderate-to-severe inflammation | On MR enterography, the Magnetic Resonance Index of Activity (MaRIA) and Magnetic Resonance Enterography Global Score (MEGS) were used to characterize intestinal inflammation by assessing intramural and extramural lesions in both the small and large intestines. In ileocolonoscopy, the Simplified Endoscopic Activity Score for Crohn's Disease (SES-CD) was used to quantify mucosal or luminal lesions from the terminal ileum to the colorectum. Both modalities were used to classify patients with no-to-mild or moderate-to-severe inflammation. We defined patients as having moderate-to-severe inflammation when at least two of the following criteria were met: (1) MaRIA≥11; (2) MEGS≥ 10 for the small bowel or MEGS≥12 for the colon; or (3) SES-CD≥11. Otherwise, patients were categorized as having no-to-mild inflammation. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Logistic regression (LR) prediction models | Diagnostic Test | Logistic regression model was used to establish a model to distinguish different levels of intestinal inflammation. |
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| Measure | Description | Time Frame |
|---|---|---|
| The area under the ROC curve (AUC) to assess the performance of diagnostic model | After baseline brain MRI scanning, patients were followed up. | 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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This study included adult patients aged 18 to 45 with Crohn's disease (CD) who were admitted to the First Affiliated Hospital of Sun Yat-sen University between May 2021 and June 2025.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Xuehua Li | Contact | 13580364103 | lxueh@mail.sysu.edu.cn | |
| Ruonan Zhang | Contact | 15124748450 | zhangrn25@mail2.sysu.edu.cn |
| Name | Affiliation | Role |
|---|---|---|
| Xuehua Li | Sun Yat-sen University First Affiliated Hospital Department of Radiology | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| XploreMET v3.0 system | Recruiting | Shanghai | China |
Disclosure is subject to application
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| ID | Term |
|---|---|
| D003424 | Crohn Disease |
| ID | Term |
|---|---|
| D015212 | Inflammatory Bowel Diseases |
| D005759 | Gastroenteritis |
| D005767 | Gastrointestinal Diseases |
| D004066 | Digestive System Diseases |
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| D007410 | Intestinal Diseases |