Please assess the completion status of the following clinical trial:

Trial Title: ESP in Breast Surgery Due to Cancer

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: TRIPLE
- Phase: PHASE4
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Elective surgery of breast due to cancer~* obtained consent~Exclusion Criteria:~* the lack of consent~* the surgery of two breasts~* reoperation of the same breast~* previous participation in the study~* coagulopathy~* allergy to morphine and local anesthetics~* depression, antidepressant drugs treatment~* epilepsy~* usage of painkiller before surgery~* addiction to alcohol or recreational drugs

- Gender: FEMALE
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Controlled (Type: PLACEBO_COMPARATOR): Standard care without regional block. General anesthesia. After the end of the surgery, the patient-controlled analgesia with oxycodone.
- ESP block (Type: EXPERIMENTAL): After the induction of general anesthesia, before the beginning of the surgery, the erector spinae plane block with 0.375% ropivacaine will be performed. Then, the patient will be treated as in the controlled group.
- Sham block (Type: SHAM_COMPARATOR): After the induction of general anesthesia, before the beginning of the surgery, the erector spinae plane block with 0.9% saline will be performed. Then, the patient will be treated as in the controlled group.

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