Please assess the completion status of the following clinical trial:

Trial Title: Role of the Chemical Environment in the Pathogenesis of Inflammatory Bowel Disease

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_CONTROL
- Primary Purpose: None
- Time Perspective: CROSS_SECTIONAL
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~1. Patients who are at least 18 years old~2. Has Crohn's disease or ulcerative colitis, diagnosed, confirmed by radiological and / or endoscopic examination within 4 years or Control patient not suffering from inflammatory bowel disease (patient with abdominal pain and / or persistent diarrhea, or patient requiring coloscopy for cancer of the digestive tract diagnosis)~3. Patients requiring coloscopy as part of their medical follow-up~4. Social insured.~Exclusion Criteria:~1. Pregnant women~2. Breastfeeding women~3. People in emergency~4. Persons unable to understand, read and / or sign informed consent~5. Patients who recently had an intercurrent episode (eg recent diarrhea ...)~6. Persons deprived of their liberty~7. Persons protected by a legal protection status

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

Study Arms:
- Control patients (Type: None): None
- Crohn's disease patients (Type: None): None
- Ulcerative colitis patients (Type: None): None

Based on this trial design, predict the completion outcome and termination type (if applicable).