Please assess the completion status of the following clinical trial:

Trial Title: Pregabalin and Analgesia After Laparoscopic Cholecystectomy

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:~* ASA physical status I-II~Exclusion Criteria:~* Renal or hepatic insufficiency~* Alcohol or drugs abuse~* History of chronic pain or daily intake of analgesics~* Uncontrolled medical disease (hypertension, diabetes) and cardiovascular problems. Psychiatric disorders~* Inability of patients to use PCA pump~* History of intake of non-steroidal anti-inflammatory drugs the last 24 hours before surgery,use of drainage after the surgery

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

Study Arms:
- Pregabalin (Type: ACTIVE_COMPARATOR): Preoperative administration of pregabalin 600mg to patients undergo laparoscopic cholecystectomy.Patients receive oral Pregabalin 300 mg the night before the surgery, and another one dose of 300 mg 1 hour prior to surgery
- Placebo (Type: PLACEBO_COMPARATOR): Preoperative administration of placebo to patients undergo laparoscopic cholecystectomy.Patients receive oral Placebo the night before the surgery, and another one dose 1 hour prior to surgery.

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