Please assess the completion status of the following clinical trial:

Trial Title: Programmed Intermittent Bolus Infusion of Thoracic Paravertebral Block for Hepatectomy

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

Eligibility Criteria:
Inclusion Criteria:~* Age 18-70 yrs~* American Society of Anesthesiologists physical statusⅠ-Ⅲ~* Undergo hepatectomy with J-shape subcostal incision~* Informed consent~Exclusion Criteria:~* A known allergy to the drugs being used~* Coagulopathy, on anticoagulants~* Analgesics intake, history of substance abuse~* Participating in the investigation of another experimental agent~* Unable to cooperate, eg. inability to properly describe postoperative pain to investigators

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 70 Years
- Healthy Volunteers: f

Study Arms:
- PTPVB-ropivacaine (Type: EXPERIMENTAL): Programmed intermittent bolus infusion of a thoracic paravertebral block with ropivacaine and patient-controlled analgesia with morphine
- PTPVB-saline (Type: PLACEBO_COMPARATOR): Programmed intermittent bolus infusion of a thoracic paravertebral block with saline and patient-controlled analgesia with morphine

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