Please assess the completion status of the following clinical trial:

Trial Title: Trial of Magnesium Sulfate Tocolysis Versus Nifedipine Tocolysis in Women With Preterm Labor

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

Eligibility Criteria:
Inclusion Criteria:~* Women in preterm labor between 24 to 32 6/7 weeks' gestation with intact membranes with an age range of 15 to 50 years old.~Exclusion Criteria:~* Cervical dilatation of ≥ 6 cm~* Maternal contraindication to tocolysis~* Known fetal anomalies~* Suspected chorioamnionitis~* Nonreassuring fetal heart tracing~* Vaginal bleeding due to placenta previa or abruptio placenta~* Preterm premature rupture of membranes~* Prolapsed membranes~* Human immunodeficiency virus positive~* Multiple gestation~* Patients on procardia within 24 hours of po intake~* Magnesium sulfate tocolysis prior to randomization~* Patient refusal

- Gender: FEMALE
- Minimum Age: 15 Years
- Maximum Age: 50 Years
- Healthy Volunteers: t

Study Arms:
- 1 (Type: ACTIVE_COMPARATOR): Intravenous magnesium sulfate or placebo
- 2 (Type: ACTIVE_COMPARATOR): Oral nifedipine or placebo

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