Please assess the completion status of the following clinical trial:

Trial Title: Effectiveness of Triple Therapy With Palonosetron for PON Prophylaxis

Study Design Characteristics:
- Allocation: None
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~* Adult patients, 18 to 85 years of age, of any race or gender. With an American Society of Anesthesiologist (ASA) physical status of I to III who are scheduled to undergo neurological surgery requiring opening of the cranium and Dura matter under general anesthesia, at Ohio State University Medical Center and who consent in writing to participating in this study.~* Post operative hospitalization expected to last at least 72 hours.~* Subjects whose surgery is expected to require at least 1 hours of general anesthesia~* Subjects who have a negative serum or urine pregnancy test within 1 day of surgery or who have been surgically sterilized or are postmenopausal.~Exclusion Criteria:~* Subjects who are prisoners, pregnant, mentally ill, under the age of 18 or over the age of 85, ASA classification of V, alcohol or drug abusers.~* Subjects with known hypersensitivity to any 5-HT3 antagonist, to any agent that is part of the anesthesia regimen, or to other medications to be administered under this protocol.~* Subjects who are breastfeeding.~* Subjects who have had retching/vomiting or moderate to severe nausea in the 24 hours prior to anesthesia or suffer chronic nausea and/or vomiting~* Subjects who have been treated with any drug or other treatment with anti-emetic efficacy within the last 24 hours prior to the start of treatment.~* Subjects who have participated in a clinical trial of an investigational drug within 30 days prior to surgery.~* Subjects who are participating in any other clinical study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

Study Arms:
- Triple therapy PONV prophylaxis (Type: EXPERIMENTAL): At induction of anesthesia, a triple therapy of palonosetron 0.075 mg IV, dexamethasone 10 mg IV and promethazine 25 mg IV was given as PONV prophylaxis.

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