Completed

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study, Conducted Under In-House Blinding Conditions, to Examine the Safety, Tolerability, and Efficacy of Aprepitant for the Prevention of Chemotherapy-Induced Nausea and Vomiting Associated With Emetogenic Chemotherapy in Adolescent Patients

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What is being tested

aprepitant

+ ondansetron
+ dexamethasone
Drug
Who is being recruted

Signs and Symptoms, Digestive

+ Vomiting
From 12 to 17 Years
See all eligibility criteria
How is the trial designed

Prevention Study

Phase 3
Interventional
Study Start: April 2004
See protocol details

Summary

Principal SponsorMerck Sharp & Dohme LLC
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner
Study start date: April 1, 2004Actual date on which the first participant was enrolled.

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.

Official TitleA Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study, Conducted Under In-House Blinding Conditions, to Examine the Safety, Tolerability, and Efficacy of Aprepitant for the Prevention of Chemotherapy-Induced Nausea and Vomiting Associated With Emetogenic Chemotherapy in Adolescent Patients 
NCT00080444
Principal SponsorMerck Sharp & Dohme LLC
Last updated: January 14, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details
50 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Prevention Study
Prevention studies aim to stop a disease from developing. They often involve people at risk and test things like vaccines, lifestyle changes, or preventive medications.

How participants are assigned to different groups/arms
In this clinical study, participants are placed into groups randomly, like flipping a coin. This ensures that the study is fair and unbiased, making the results more reliable. By assigning participants by chance, researchers can better compare treatments without external influences.

Other Ways to Assign Participants
Non-randomized allocation: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.
None (Single-arm trial): If the study has only one group, all participants receive the same treatment, and no allocation is needed.

How treatments are given to participants
Participants are divided into different groups, each receiving a specific treatment at the same time. This helps researchers compare how well different treatments work against each other.

Other Ways to Assign Treatments
Single-group assignment: Everyone gets the same treatment.
Cross-over assignment: Participants switch between treatments during the study.
Factorial assignment: Participants receive different combinations of treatments.
Sequential assignment: Participants receive treatments one after another in a specific order, possibly based on individual responses.
Other assignment: Treatment assignment does not follow a standard or predefined design.

How the effectiveness of the treatment is controlled
In a non placebo-controlled study, no participants receive an inert substance (placebo) to compare outcomes. Instead, all participants receive either the experimental treatment or an alternative treatment (often the Standard of Care). This method allows researchers to compare the effects of the experimental treatment with those of a different active intervention, rather than a placebo.

Other Options
Placebo-Controlled: A placebo is used to compare the effects of the experimental treatment with those of an inert substance, isolating the true treatment effect.

How the interventions assigned to participants is kept confidential
Participants, researchers, and outcome assessors do not know which treatment is being given. This helps reduce bias not just during the study, but also when the results are being evaluated.

Other Ways to Mask Information
Open-label: Everyone knows which treatment is being given.
Single-blind: Participants do not know which treatment they are receiving, but researchers do.
Double-blind: Neither participants nor researchers know which treatment is given.
Quadruple-blind: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
Any sexBiological sex of participants that are eligible to enroll.
From 12 to 17 YearsRange of ages for which participants are eligible to join.
Healthy volunteers not allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Signs and Symptoms, Digestive
Vomiting
Criteria

Inclusion Criteria: * Cycle 1: Participant is to be treated with an emetogenic chemotherapy regimen that includes either cisplatin, cyclophosphamide, or carboplatin, for a documented malignancy. OR Participant did not tolerate a previously administered chemotherapy regimen, for a documented malignancy, secondary to nausea and/or vomiting that is planned to be repeated. * Cycle 1: Participant has Karnofsky score ≥60 * Cycle 1: Participant has a predicted life expectancy of ≥3 months Exclusion Criteria: * Cycle 1: Participant will receive stem cell rescue therapy in conjunction with course of chemotherapy.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives
3 intervention groups 

are designated in this study

This study does not include a placebo group 

Treatment Groups
Group I
Experimental
Day 1: aprepitant 125 mg orally (PO), ondansetron 0.15 mg/kg x 3 doses intravenously (IV), dexamethasone 8 mg PO. Day 2: aprepitant 80 mg PO, ondansetron 0.15 mg/kg x 3 doses IV, dexamethasone 4 mg PO. Day 3: aprepitant 80 mg PO, dexamethasone 4 mg PO. Day 4: dexamethasone 4 mg PO. For 1 cycle and up to 9 subsequent optional cycles.

aprepitant capsules

ondansetron IV preparation

dexamethasone tablets

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.
Group II
Active Comparator
Day 1: aprepitant 125 mg PO, ondansetron 0.15 mg/kg x 3 doses IV, dexamethasone 8 mg PO. Day 2: aprepitant 80 mg PO, ondansetron 0.15 mg/kg x 3 doses IV, dexamethasone 4 mg PO. Day 3: aprepitant 80 mg PO, dexamethasone 4 mg PO. Day 4: dexamethasone 4 mg PO. For up to 10 cycles.

aprepitant capsules

ondansetron IV preparation

dexamethasone tablets

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.
Group III
Active Comparator
Day 1: placebo to aprepitant 125 mg PO, ondansetron 0.15 mg/kg x 3 doses IV, dexamethasone 16 mg PO. Day 2: placebo to aprepitant 80 mg PO, ondansetron 0.15 mg/kg x 3 doses IV, dexamethasone 8 mg PO. Day 3: placebo for aprepitant 80 mg PO, dexamethasone 8 mg PO. Day 4: dexamethasone 8 mg PO. For 1 cycle; participants may receive open-label aprepitant for up to 9 subsequent optional cycles.

ondansetron IV preparation

dexamethasone tablets

Matching placebo to aprepitant capsules

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.
Study Objectives
Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
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