Please assess the completion status of the following clinical trial:

Trial Title: Colonography Versus Colonoscopy in High Risk Patient

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~Surveillance of patients with a personal history of advanced adenoma or CRC:~* Informed consent obtained~* Age ≥ 18 and ≤ 80 years old~* History of advanced adenomatous polyps~* Or history of non metastatic CRC with curative surgery and without other treatment more than 2 years before enrollment.~* Previous medical examination~Screening of patients with a Family history of CRC at high risk:~* Informed consent obtained~* Age ≥ 18 and ≤ 80 years old~* First degree family history of colorectal cancer diagnosed \<60yrs during the five previous years-Previous medical examination~Exclusion Criteria:~Personal histories~* Age \< 18 or \>80 years old~* history of non adenomatous polyps~* history of Metastatic CRC~* familial adenomatous polyposis, Peutz-Jeghers syndrome, hereditary non polyposis colorectal cancer (HNPCC), juvenile polyposis syndrome~* Familial history of familial adenomatous polyposis~* Personal history of subtotal colectomy (but not of hemicolectomy, to confer to inclusion criteria)~* Colonoscopy with a polyps resection dated more than 5 years and less than 2 years prior to enrollment.~* Enrollment in another protocol~* no health insurance affiliation Family histories~* Age \< 18 or \>80 years old~* Patients with one or several family histories of first degree colorectal cancer occured to unknown age or diagnosed after 60 years old.~* Eligible patients having already undergone colonoscopy screening~* no health insurance affiliation

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- 1 (Type: ACTIVE_COMPARATOR): CT Colonography
- 2 (Type: ACTIVE_COMPARATOR): Colonoscopy

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