Please assess the completion status of the following clinical trial:

Trial Title: Spinal or Epidural Fentanyl or Sufentanil for Labour Pain in Early Phase of the Labour

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

Eligibility Criteria:
Inclusion Criteria:~* Primiparous parturients~* In early phase of labour (cervical dilatation at or under 5 cm)~* No prior opioids by any route of administration within past 120 min~* Pain at or over 80 mm on 0-100 mm visual analog scale during contraction~Exclusion Criteria:~* Allergy for any of the medications used~* Contraindications for epidural/spinal analgesia~* BMI at the time of delivery under 20 or over 35 kg/m2

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

Study Arms:
- Spinal fentanyl (Type: ACTIVE_COMPARATOR): 20 micrograms of intrathecally administered fentanyl in single dose. Total volume of intrathecal injection 2 ml.
- Epidural fentanyl (Type: EXPERIMENTAL): 100 micrograms of epidurally administered fentanyl in a single dose. Total volume of epidural injection 7 ml.
- Spinal sufentanil (Type: ACTIVE_COMPARATOR): 5 micrograms of intrathecally administered sufentanil in a single dose. Total volume of intrathecal injection 2 ml.
- Epidural sufentanil (Type: EXPERIMENTAL): 20 micrograms of epidurally administered sufentanil in a single dose. Total volume of epidural injection 7 ml.

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