This study is being conducted to demonstrate that aprepitant (MK-0869) prevents nausea and vomiting caused by emetogenic cancer chemotherapy in adolescent participants. Participants treated with emetogenic cancer chemotherapies that include either cisplatin, cyclophosphamide, or carboplatin, or participants who experienced nausea and/or vomiting when treated with a previously administered chemotherapy regimen that is planned to be repeated will be enrolled in this study. In the double-blind Part 1 of this study, enrolled participants will be randomized to receive either aprepitant or standard therapy. In Part 2 of this study, enrolled participants will receive open-label aprepitant.
The duration of treatment is the first 4 days of one 28-day cycle (Cycle 1). Participants who successfully complete Cycle 1 may be eligible to participate for 9 subsequent optional, open-label, 28-day cycles.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
50
aprepitant capsules
ondansetron IV preparation
dexamethasone tablets
Matching placebo to aprepitant capsules
Matching placebo to dexamethasone tablets
Participants are allowed to take rescue medication throughout for nausea or vomiting. At the discretion of the investigator, participants are provided with a prescription for rescue medications. Recommended rescue medications are: 5-HT3 antagonists, phenothiazines, butyrophenones, benzamides, corticosteroids, benzodiazepines, domperidone, H1-receptor antagonist, and piperazine derivatives.
Percentage of Participants Who Experience Study-drug-related Adverse Events (Cycle 1)
Time frame: Up to 14 days after last dose of anti-emetic therapy in Cycle 1 (Up to 18 days)
Percentage of Participants Who Experience a Complete Response (CR) to Anti-emetic Therapy (Cycle 1)
Time frame: Up to 120 hours after initiation of emetogenic chemotherapy in Cycle 1
Percentage of Participants Who Experience Absence of Nausea (Cycle 1)
Time frame: Up to 120 hours after initiation of emetogenic chemotherapy in Cycle 1
Percentage of Participants Who Experience Absence of Vomiting (Cycle 1)
Time frame: Up to 120 hours after initiation of emetogenic chemotherapy in Cycle 1
Percentage of Participants Who Experience Serious Adverse Events (Cycles 2-10)
Time frame: Up to 14 days after last dose of anti-emetic therapy in Cycles 2-10 (Up to 10.5 months)
Percentage of Participants Who Experience Study-drug-related Adverse Events (Cycles 2-10)
Time frame: Up to 14 days after last dose of anti-emetic therapy in Cycles 2-10 (Up to 10.5 months)
Percentage of Participants Who Discontinue Study Due to Study-drug-related Adverse Events (Cycles 2-10)
Time frame: Up to Day 4 of Cycles 2-10 (Up to 10 months)
Percentage of Participants Who Experience Serious Adverse Events (Cycle 1)
Time frame: Up to 14 days after last dose of anti-emetic therapy in Cycle 1 (Up to 18 days)
Percentage of Participants Who Experience Serious Study-drug-related Adverse Events (Cycle 1)
Time frame: Up to 14 days after last dose of anti-emetic therapy in Cycle 1 (Up to 18 days)
Percentage of Participants Who Discontinue Study Due to Study-drug-related Adverse Events (Cycle 1)
Time frame: Up to Day 4 of Cycle 1
Aprepitant Plasma Drug Concentration Profiles and Pharmacokinetics
Time frame: Up to 24 hours after first dose of aprepitant
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