Please assess the completion status of the following clinical trial:

Trial Title: Sodium Bicarbonate Supplementation in Chronic Kidney Disease Evaluation of Dose Response, Safety and Beneficial Effects

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: SEQUENTIAL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE2/PHASE3
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Estimated GFR \< 45 ml/min/1.73m2 and \>15 ml/min/1.73 m2 determined by abbreviated 4 variable modification MDRD equation~* Age \>21~Exclusion Criteria:~* Previous chronic treatment with alkali (including sodium bicarbonate, calcium carbonate or baking soda)~* Bicarbonate level \<20 or \>25 mEq/L~* Decompensated heart failure~* Systolic blood pressure \>160 mm/Hg~* Moderate or greater lower extremity edema~* Initiation of ESRD treatment planned within 6 months~* Kidney transplantation~* Treatment with immunosuppressives within the last 3 months

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Sodium Bicarbonate (Type: ACTIVE_COMPARATOR): Sequential design. Participants will be getting different doses of sodium bicarbonate during the study.
- Placebos (Type: PLACEBO_COMPARATOR): Sequential design. Participants will be getting either placebo of different doses during the study.

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