Please assess the completion status of the following clinical trial:

Trial Title: Thiamine Supplementation to Improve Cardiac Function in Patients With Congestive Heart Failure

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Patients with stable congestive heart failure on a prescription for diuretic drugs~Exclusion Criteria:~* Acute heart failure~* Foreseeable need for further changes in medication~* Current medication containing vitamins~* Patients with a creatinine above 250 μmol/l

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

Study Arms:
- Thiamine (Type: ACTIVE_COMPARATOR): None
- Placebo (Type: PLACEBO_COMPARATOR): None

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