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Ondansetron Versus Aprepitant Plus Ondansetron for Emesis

Comparative Trial Ondansetron Alone Versus Combination of Ondansetron Plus Aprepitant for Prevention of Nausea and Vomiting With Hematologic Malignancies Receiving Regimens Containing High-dose Cytarabine

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00954941
Enrollment
100
Registered
2009-08-07
Start date
2009-11-30
Completion date
2015-05-31
Last updated
2015-06-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myelogenous Leukemia, Chronic Myelogenous Leukemia, Hematologic Diseases, Myelodysplastic Syndrome

Keywords

Hematologic Disorder, Acute myelogenous leukemia, AML, High-risk myelodysplastic syndrome, HR-MDS, Chronic Myelogenous Leukemia, CML, Ondansetron, Zofran, Aprepitant, Emend, L 754030, MK 869, Emesis, Nausea, Vomiting

Brief summary

The goal of this clinical research study is to compare the effectiveness of receiving a combination of ondansetron and aprepitant to receiving ondansetron alone in helping to prevent nausea and/or vomiting in patients with Acute myeloid leukemia (AML) or high-risk (HR) Myelodysplastic syndromes (MDS) who are receiving cytarabine. The safety of this drug combination will also be studied.

Detailed description

Cytarabine is a drug that is used to treat AML and high-risk MDS. It is known to cause nausea and/or vomiting. All patients that receive cytarabine also receive drugs to help prevent these side effects. The Study Drugs: Ondansetron is designed to block the action of serotonin, a substance in the brain that causes chemotherapy-related nausea and vomiting. Aprepitant is designed to block a different natural substance in the brain that causes chemotherapy-related nausea and vomiting. Study Groups: If you are found eligible to take part in this study, you will be randomly assigned (as in the flip of a coin) to 1 of 2 groups. You will have an equal chance of being in either group. If you are in Group 1, you will receive ondansetron. If you are in Group 2, you will receive ondansetron and aprepitant. Study Drug Administration: Both groups will receive ondansetron by vein from 30 minutes before receiving chemotherapy until 6 to12 hours after chemotherapy. The length of the chemotherapy infusion will be different for all patients. If you are in Group 2, in addition to ondansetron, you will take 1 capsule of aprepitant every morning while receiving chemotherapy. You will take your last dose of aprepitant the day after your chemotherapy infusion is completed. If you miss a dose of aprepitant, you can take it as soon as you remember. Study Diary: You will fill out a study diary every day for the 7 days after the chemotherapy. You will record how often you experience nausea and/or vomiting and any time you need other medications during this study. It should take about 5 minutes to complete each time. Length of Study: You will be on study for up to 7 days. You will be taken off study if intolerable side effects occur. Blood Draws: Blood (about 1 teaspoon) will be drawn for routine tests after your last dose (+/- 3 days) of study drug. This is an investigational study. Ondansetron and aprepitant are both FDA approved and commercially available for the prevention of chemotherapy-related nausea and vomiting. Using the drugs in combination is investigational. Up to 100 participants will take part in this study. All will be enrolled at MD Anderson.

Interventions

DRUGOndansetron

8 mg bolus by vein from 30 minutes before receiving chemotherapy followed by 24 mg by vein continuous infusion daily while receiving chemotherapy until 12 hours after chemotherapy.

DRUGAprepitant

125 mg capsule by mouth every morning while receiving chemotherapy followed by 80 mg capsule by mouth daily while receiving chemotherapy continued till 1 day after last chemotherapy dose.

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patients greater than or equal to 18 years of age. 2. Patients with a diagnosis of acute myelogenous leukemia, high-risk myelodysplastic syndrome, chronic myelogenous leukemia in blast crisis or acute undifferentiated leukemia who will receive chemotherapy with regimens containing high-dose cytarabine (greater or equal 1g/m\^2/d for at least 3 days). 3. Patients must sign an informed consent indicating they are aware of the investigational nature of this study, in keeping with the policies of the hospital.

Exclusion criteria

1. Patients with emesis or grade 2 or 3 nausea present less than or equal to 24 hours before chemotherapy. 2. Patients with ongoing emesis due to any organic etiology 3. Patients with known hypersensitivity to the study drug or to 5-HT3 receptor antagonists 4. Patients receiving pimozide, terfenadine, astemizole, or cisapride

Design outcomes

Primary

MeasureTime frameDescription
Participant ResponsesFirst 6 treatment daysParticipant response defined as: Complete response - no emetic episode, no nausea and no rescue medication during the administration of chemotherapy; Partial response - less than or equal to one episode of emesis in 24 hours, no rescue medication, and no more than moderate nausea (grade 2 National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE)) during chemotherapy. Vomit was defined as expulsion of stomach contents through the mouth, nausea as stomach distress with distaste for food and an urge to vomit, and rescue medication as antiemetic medications given to treat nausea and/or vomit that did not respond to the initial prophylactic regimen. Treatment success was defined as no nausea, no vomiting and no need for rescue medication within the first 6 treatment days with continuous monitoring.
Treatment Success RateFirst 6 treatment daysTreatment success is defined as no nausea, no vomiting and no need for rescue medication (or complete response) within the first 6 treatment days. Treatment success rate defined as percentage of participants achieving treatment success.

Countries

United States

Participant flow

Recruitment details

Recruitment Period: 11/11/09 to 3/20/2013. All participants registered at The University of Texas M.D. Anderson Cancer Center.

Pre-assignment details

Of the 100 participants registered for screening on this study, fifty participants were randomized to Ondansetron alone (Group 1) and forty-eight participants to Ondansetron plus Aprepitant (Group 2).

Participants by arm

ArmCount
Group 1: Ondansetron
Ondansetron 8 mg bolus by vein from 30 minutes before receiving chemotherapy followed by 24 mg by vein continuous infusion daily while receiving chemotherapy until 12 hours after chemotherapy.
50
Group 2: Ondansetron + Aprepitant
Ondansetron 8 mg bolus by vein from 30 minutes before receiving chemotherapy followed by 24 mg by vein continuous infusion daily while receiving chemotherapy until 12 hours after chemotherapy. Aprepitant 125 mg capsule by mouth every morning while receiving chemotherapy followed by 80 mg capsule by mouth daily while receiving chemotherapy continued till 1 day after last chemotherapy dose.
48
Total98

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event01
Overall StudyIneligible22
Overall StudyInsurance Denial22
Overall StudyPhysician Decision22
Overall StudyReceived treatment at home10
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicGroup 1: OndansetronGroup 2: Ondansetron + AprepitantTotal
Age, Continuous56 years53 years55 years
Region of Enrollment
United States
50 participants48 participants98 participants
Sex: Female, Male
Female
21 Participants22 Participants43 Participants
Sex: Female, Male
Male
29 Participants26 Participants55 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
43 / 4641 / 44
serious
Total, serious adverse events
3 / 463 / 44

Outcome results

Primary

Participant Responses

Participant response defined as: Complete response - no emetic episode, no nausea and no rescue medication during the administration of chemotherapy; Partial response - less than or equal to one episode of emesis in 24 hours, no rescue medication, and no more than moderate nausea (grade 2 National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE)) during chemotherapy. Vomit was defined as expulsion of stomach contents through the mouth, nausea as stomach distress with distaste for food and an urge to vomit, and rescue medication as antiemetic medications given to treat nausea and/or vomit that did not respond to the initial prophylactic regimen. Treatment success was defined as no nausea, no vomiting and no need for rescue medication within the first 6 treatment days with continuous monitoring.

Time frame: First 6 treatment days

Population: Of the 98 participants in the study, six (6) in Group 1: Ondansetron and nine (9) in Group 2: Ondansetron + Aprepitant were not.evaluable.

ArmMeasureGroupValue (NUMBER)
Group 1: OndansetronParticipant ResponsesPartial Response9 participants
Group 1: OndansetronParticipant ResponsesComplete Response20 participants
Group 1: OndansetronParticipant ResponsesNo Response13 participants
Group 2: Ondansetron + AprepitantParticipant ResponsesComplete Response21 participants
Group 2: Ondansetron + AprepitantParticipant ResponsesPartial Response12 participants
Group 2: Ondansetron + AprepitantParticipant ResponsesNo Response8 participants
Primary

Treatment Success Rate

Treatment success is defined as no nausea, no vomiting and no need for rescue medication (or complete response) within the first 6 treatment days. Treatment success rate defined as percentage of participants achieving treatment success.

Time frame: First 6 treatment days

Population: Of the 98 participants in the study, six (6) in Group 1: Ondansetron and nine (9) in Group 2: Ondansetron + Aprepitant were not.evaluable.

ArmMeasureValue (NUMBER)
Group 1: OndansetronTreatment Success Rate48 percentage of participants
Group 2: Ondansetron + AprepitantTreatment Success Rate51 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026