Please assess the completion status of the following clinical trial:

Trial Title: The Median Effective Dose (ED50) of Paracetamol and Morphine : A Study of Interaction Study

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

Eligibility Criteria:
Inclusion Criteria:~1. ASA physical status І or ІІ~2. Moderately painful surgery patients~3. postoperative pain more than 3 on a numerical pain score (NPS) -~Exclusion Criteria:~1. contraindication to the use of paracetamol and morphine~2. Pregnancy~3. age younger than 18 yr~4. patient weight less 65kg~5. intra-operative regional anesthesia,~6. intra-operative administration of analgesics other than fentanyl,~7. postoperative pain less than 3 on a numerical pain score (NPS)

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

Study Arms:
- Paracetamol (Type: EXPERIMENTAL): initial doses was 1.5g g, with dose adjustment intervals of 0.5g . with maximum dose 2.5 g as an only starting dose / 24 h
- Morphine (Type: EXPERIMENTAL): Initial doses of morphine was 5mg, with dose adjustment intervals of 1 mg .
- Paracetamol-morphine (Type: EXPERIMENTAL): The initial doses of paracetamol and morphine were 1.5g and 3mg, respectively in the paracetamol-morphine combination group with dose adjustment intervals of 0.25g for paracetamol and 0.5mg for morphine.

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