Please assess the completion status of the following clinical trial:

Trial Title: Oral Versus Intravenous Hydration to Prevent Contrast Induced Nephropathy

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

Eligibility Criteria:
Inclusion Criteria:~* Adult patients \> 18 years undergoing an elective procedure involving intravascular administration of iodinated contrast media~* high risk for the development of Contrast Induced Nephropathy (as defined by guideline criteria~Exclusion Criteria:~* Age \< 18.~* Low risk for the development of CIN, therefore no need for hydration~* Emergency contrast procedure.~* Overt signs of overhydration; orthopnea or pulmonal rales at the time of the first consult.~Double or triple diuretic use for pre-existing heart failure. Severe heart failure, in which case salt load is not safe (physician decision) Severe renal failure (CKD stage V eGFR \< 15ml/min/1.73m2) Multiple Myeloma. Repeated contrast exposure \< 2 weeks Unstable serum creatinine \> 25% change \< 6 weeks The inability to provide written informed consent. Participation in another intervention study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Arm A: sodium chloride tablets (Type: EXPERIMENTAL): Arm A: sodium chloride 1g/10kg of body weight /day per os on day -2 and -1 before contrast exposure. With a maximum dose of 10 gram sodium chloride a day.
- B: isotonic saline intravenously (Type: ACTIVE_COMPARATOR): Sodium chloride solution (isotonic saline (NaCl 0.9%) total 1000ml in 4 hrs or (in case of heart failure or severe renal failure) 12 hrs before and in 4 or in 12 hrs after contrast administration.

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