Effectiveness and Quality of Life Analysis of Palonosetron Against Ondansetron Combined With Dexamethasone and Fosaprepitant in Prevention of Acute and Delayed Emesis Associated to Chemotherapy Moderate and Highly Emetogenic in Breast Cancer.

Nausea and vomiting are common complications on the chemotherapy (CT) and can affect the quality of life (QoL) of the patients. If not treated adequately Nausea and vomiting can produce other problems such as dehydration, weight loss, fatigue and even can induce the non-compliance of the treatment. In extreme cases it can put the patient ́s life at risk. There are various antiemetic treatments that vary both in cost and effectiveness. It ́s important to determine which are the strategies that are most effective and can improve the QoL of the patients.

Methodology:

Effectiveness and quality of life analysis of patients with breast cancer that will receive adjuvant and neoadjuvant chemotherapy highly and moderately emetic chemotherapy (adriamycin and cyclophosphamide (AC), docetaxel and carboplatin (TC), docetaxel, carboplatin and trastuzumab (THC)); there will only be consider those patients that are candidates to receive CT for the first time and should have central venous access. There will be excluded patients that had received previously any kind of chemotherapy or radiotherapy. The follow-up will exclusively be done during the first cycle of CT. Patients will be stratified according to the emetogenic potential of the CT regimen ad not by the clinical stage or the histologic type of the tumor.

To keep a follow-up of the patient there will be provided symptomatic diaries where the patient can register any discomfort suffered after receiving their treatment. Along with this, there will be applied quality of life questionnaires, one previous to the CT and one previous to the second cycle.

There a proposed two regimes on antiemetic treatment. The randomization is as follows.