IBD Biomarker Discovery and Validation Platform

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• Active severe infection or chronic infectious disease that may substantially affect biomarker interpretation, including active tuberculosis, active hepatitis B or C, HIV infection, or other clinically significant active infection.
• Severe mental illness, cognitive impairment, or other condition that prevents cooperation with study procedures.
• Known primary extraintestinal autoimmune disease or systemic inflammatory disease that is considered the main disease and may substantially confound biomarker interpretation.
• History of malignant tumor or other severe comorbidity that may substantially affect study participation or biomarker interpretation, as judged by the investigator.

Egyéb

• Refusal or inability to provide informed consent or required assent when applicable.
• Pregnancy or lactation at the time of enrollment.
• Current or recent participation in another interventional clinical trial that may substantially affect the study biomarkers or outcome assessments, as judged by the investigator.
• Inadequate biospecimen quality, missing key clinical information, or inability to complete essential study assessments for the relevant analysis.

• General inclusion criteria for all participants:
  • Age 14 years or older.
  • Able to provide written informed consent; for minors, consent from a legal guardian and assent from the participant will be obtained according to local ethics requirements.
  • Willing to provide clinical information and/or biospecimens, which may include blood, stool, intestinal tissue, or other available biological samples.
  • Able to participate in study-related data and sample collection according to the study protocol.
• Participants with inflammatory bowel disease:
  • Diagnosed with inflammatory bowel disease, including Crohn's disease, ulcerative colitis, or IBD-unclassified when applicable, according to accepted national or international diagnostic criteria.
  • May be newly diagnosed, previously diagnosed, under routine follow-up, or receiving routine clinical treatment.
  • Clinical data, treatment exposure information, laboratory results, endoscopic findings, histologic findings, imaging findings, biospecimens, and follow-up outcomes may be available or collected.
• Unaffected first-degree relatives of participants with inflammatory bowel disease:
  • Biological first-degree relatives of participants with inflammatory bowel disease, including parents, siblings, or offspring.
  • No prior diagnosis of inflammatory bowel disease at enrollment.
  • Willing to provide clinical information and/or biospecimens for family-based genetic, environmental, immune, microbiome, and multi-omics analyses.
• Unrelated healthy controls:
  • Individuals without a diagnosis of inflammatory bowel disease.
  • No first-degree biological relationship to enrolled participants with inflammatory bowel disease.
  • No known active gastrointestinal inflammatory disease at enrollment.
• Non-IBD disease controls:
  • Individuals with gastrointestinal symptoms or other non-IBD conditions who undergo clinical evaluation but are not diagnosed with inflammatory bowel disease.
  • Clinical information and/or biospecimens may be collected as disease controls when appropriate.

A regiszterben nem jelölt feltételek

• Eligibility Criteria: