Please assess the completion status of the following clinical trial:

Trial Title: Epidural Fentanyl for 2nd Stage Labor Analgesia

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Nulliparous women~2. Spontaneous labor~3. A single vertex presentation fetus at term (38-42 weeks)~4. Effective labor epidural analgesia with continuous epidural infusion established~5. Provide written consent to participate in the study.~Exclusion Criteria:~1. Multigravida women~2. Multigestation pregnancies~3. Patients being treated/managed for chronic pain~4. Allergies or significant adverse reactions to local anesthetic or opioid medications~5. Inadequate or unsatisfactory labor epidural analgesia~6. Patients with history of spine abnormalities or spine surgery~7. Non-English speaking~8. Prisoners~9. Age less than 18 years old

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Low Dose Fentanyl (Type: ACTIVE_COMPARATOR): Low dose epidural fentanyl combined with local anesthetic as 10mL of 0.125% bupivacaine with 20 mcg fentanyl (Fentanyl 20 mcg)
- High Dose Fentanyl (Type: EXPERIMENTAL): High dose epidural fentanyl combined with local anesthetic as 10mL of 0.125% bupivacaine with 100 mcg fentanyl (Fentanyl 100 mcg)

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