Please assess the completion status of the following clinical trial:

Trial Title: Mizone vs Water for Bowel Preparation.

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

Eligibility Criteria:
Inclusion Criteria:~Patients age between 18-75 years old requiring colonoscopy and willing to participate in this study.~Exclusion Criteria:~1. Patients with constipation;~2. Patients with congestive heart failure;~3. Patients with a history of kidney disease;~4. Patients with a history of poor intestinal preparation;~5. Pregnant / lactating women;~6. Patients without informed consent;~7. Allergic or intolerant to any research drug;~8. Patients with severe gastrointestinal diseases, such as intestinal obstruction or perforation, active ulcerative colitis, toxic colitis and toxic megacolon;~9. Patients with a history of inflammatory bowel disease;~10. Significant electrolyte anomalies, including phosphorus, sodium, potassium, calcium, chloride and magnesium;~11. History of colorectal resection；~12. Patients with diabetes.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- PEG-Mizone prep (Type: EXPERIMENTAL): The evening before the colonoscopy: The patients who are randomized to the  PEG-Mizone prep  arm will drink single dose of 60g Polyethylene Glycol (PEG-4000) with 0.6L Mizone+0.4L water at a rate of 250 ml every 15 min.~On the day of the colonoscopy: The patients who are randomized to the  PEG-Mizone prep  arm will drink single dose of 120g Polyethylene Glycol (PEG-4000) with 1.2L Mizone+0.8L water 4-6 h before colonoscopy at a rate of 250 ml every 15 min.
- PEG-ELS prep (Type: ACTIVE_COMPARATOR): The evening before the colonoscopy: In the PEG-ELS prep group, all the patients drink single dose of 60g Polyethylene Glycol (PEG-4000) with 1L water at a rate of 250 ml every 15 min.~On the day of the colonoscopy: all the patients drink single dose of 120g Polyethylene Glycol (PEG-4000) with 2L water 4-6 h before colonoscopy at a rate of 250 ml every 15 min.

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