Please assess the completion status of the following clinical trial:

Trial Title: Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE3
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Women who are within the ages of 18-45 years~* In good general health~* 12 weeks pregnant (based on last menstrual period)~Exclusion Criteria:~* Mothers with preexisting type I or type II diabetes~* Mothers with preexisting hypertension~* Mothers with preexisting parathyroid disease or uncontrolled thyroid disease~* Mothers with multiple fetuses (e.g., twins, triplets, etc.)

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 45 Years
- Healthy Volunteers: t

Study Arms:
- Prenatal Vitamin D3 (Type: PLACEBO_COMPARATOR): Arm will receive prenatal vitamin with 400IU of cholecalciferol (Vitamin D3)along with a placebo tablet containing 0IU of Vitamin D
- 2 (Type: EXPERIMENTAL): Arm will receive prenatal vitamin with 400IU of cholecalciferol (Vitamin D3)along with a tablet containing 1600IU of Cholecalciferol (Vitamin D3)
- 3 (Type: EXPERIMENTAL): Arm will receive prenatal vitamin with 400IU of cholecalciferol (Vitamin D3) along with a tablet containing 3600IU of Cholecalciferol (Vitamin D3).

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