This randomized phase III trial studies antiemetic therapy with olanzapine to see how well they work compared to antiemetic therapy alone in preventing chemotherapy-induced nausea and vomiting in patients with cancer receiving highly emetogenic (causes vomiting) chemotherapy. Antiemetic drugs, such as palonosetron hydrochloride, ondansetron, and granisetron hydrochloride, may help lessen or prevent nausea and vomiting in patients treated with chemotherapy. Olanzapine may help prevent chemotherapy-induced nausea and vomiting by blocking brain receptors that appear to be involved in nausea and vomiting.
Patients with cancer may receive chemotherapy that may cause nausea and vomiting. The purpose of this study is to determine if the use of olanzapine in combination with antiemetic therapy can significantly reduce nausea and vomiting in a large number of patients receiving chemotherapy. Patients are randomized to one of two treatment arms. Please see the "Arms and Intervention" sections for more detailed information. The primary objective is to compare the number of patients with no nausea for the acute (0-24 hours post-chemotherapy), delayed (24-120 hours post-chemotherapy) and overall periods (0-120 hours post-chemotherapy) for patients receiving HEC. The secondary objectives are: 1. To compare the complete response (CR) (no emetic episodes and no use of rescue medication) in the acute, delayed and overall periods 2. To compare the incidences of potential toxicities ascribed to olanzapine Protocol treatment is to begin ≤ 14 days of registration. Patients will receive treatment on Days 1-4. Patients will be permitted to take rescue therapy of the treating investigator's choice for nausea and/or emesis/retching, based on clinical circumstances. After completing treatment, patients will be monitored for side effects.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
401
Anchorage Associates in Radiation Medicine
Anchorage, Alaska, United States
Anchorage Radiation Therapy Center
Anchorage, Alaska, United States
Alaska Breast Care and Surgery LLC
Anchorage, Alaska, United States
Alaska Oncology and Hematology LLC
Anchorage, Alaska, United States
Alaska Regional Hospital
Anchorage, Alaska, United States
Proportion of Patients With no Nausea
No nausea was defined as a response of 0 in the nausea item of Nausea and Vomiting Daily Diary/Questionnaire in the acute (0-24 hours), delayed (25-120 hours) and overall (0-120 hours) periods after chemotherapy.
Time frame: 0 to 120 hours after chemotherapy
Median Nausea Scores
Nausea scores was measured using a visual-analogue scale ranging from 0 (none) to 10 (as bad as it can be).
Time frame: Baseline and Day 2 to Day 6 after chemotherapy
Proportion of Patients With Complete Response
Complete response was defined as no emetic episodes and no use of rescue medication during the acute (0-24 hours), delayed (25-120 hours) and overall (0-120 hours) periods as measured by the Nausea and Vomiting Daily Diary/Questionnaire.
Time frame: 0 to 120 hours after chemotherapy
Mean Scores of Potential Toxicities Related to Olanzapine as Measured by the Nausea and Vomiting Daily Diary/Questionnaire
Patients were asked to record daily levels of undesired sedation and appetite increase using a visual-analogue scale ranging from 0 (none) to 10 (as bad as it can be).
Time frame: Baseline and day 2 to 6 days after chemotherapy
Frequency of Rescue Medication
Patients were asked to record daily number of extra nausea/vomiting pills taken because they developed nausea/vomiting in the following categories: None, One, Two, More than two in Nausea and Vomiting Daily Diary Questionnaire.
Time frame: Day 2 to Day 6 after chemotherapy
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