Please assess the completion status of the following clinical trial:

Trial Title: PIEB vs CEI for Labor Analgesia: An MLAC Study

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: SUPPORTIVE_CARE
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: PHASE4
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* ASA I \& II, Nulliparous and Multiparous, Spontaneous/Induced/Augmented Labor, Early active labor (cervix \<5 cm (if known)), Pain (VPS) \> 3, 18-45 years of age~Exclusion Criteria:~* \<37 weeks gestation, H/o Cesarean Section, Multiple Gestation, Pre-eclampsia, Narcotics within 3 hours prior to labor epidural placement, Chronic Pain (as defined by chronic opiate consumption), Women who are participating in another study that will impact protocol

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

Study Arms:
- Part A Group 1 (Type: ACTIVE_COMPARATOR): CEI bupivacaine and CEI sufentanil
- Part A Group 2 (Type: ACTIVE_COMPARATOR): PIEB bupivacaine and PIEB sufentanil
- Part B Group 3 (Type: ACTIVE_COMPARATOR): CEI bupivacaine and PIEB sufentanil
- Part B Group 4 (Type: ACTIVE_COMPARATOR): PIEB bupivacaine and CEI sufentanil

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