Please assess the completion status of the following clinical trial:

Trial Title: Remifentanil And Local Anesthesia Compared With Local Anesthesia For The Insertion Of Central Venous Catheters

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

Eligibility Criteria:
Inclusion Criteria:~* more than 18 years old~* eligible for CVC insertion~Exclusion Criteria:~* pregnancy~* patients who can't give their consent~* contra-indications to remifentanil infusion

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

Study Arms:
- Remifentanil (Type: EXPERIMENTAL): Patients who undergone a Central Venous Catheter (CVC) insertion under remifentanil infusion
- Placebo (Type: PLACEBO_COMPARATOR): Patients who undergone a Central Venous Catheter (CVC) insertion under placebo infusion

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