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Liposomal Amphotericin B (Ambisome) Versus Oral Voriconazole for the Prevention of Invasive Fungal Infections

Open, Randomized Comparative Trial of Two Different Schedules of Liposomal Amphotericin B Versus Oral Voriconazole for the Prevention of Invasive Fungal Infections

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00418951
Enrollment
120
Registered
2007-01-05
Start date
2006-11-30
Completion date
2009-10-31
Last updated
2012-08-07

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

Conditions

Acute Myelogenous Leukemia, Myelodysplastic Syndrome

Keywords

Voriconazole, Vfend, Liposomal amphotericin B, Ambisome, Acute Myelogenous Leukemia, Myelodysplastic Syndrome, AML, MDS

Brief summary

The goal of this clinical research study is to compare the effectiveness of liposomal amphotericin B given three times per week , versus liposomal amphotericin B given once per week, versus oral voriconazole in the prevention of fungal infections in patients with acute myeloid leukemia (AML) or myelodysplastic syndromes MDS who are receiving chemotherapy. The safety of these treatments will also be studied and compared.

Detailed description

Ambisome and voriconazole are drugs that have been used to fight fungal infections, which typically occur during chemotherapy as a result of lowered immune system functioning. Ambisome works by binding to the sterol component of the fungal cell membrane. This causes holes to appear in the membrane, which leads to death of the fungal cell. Voriconazole inhibits an essential step of the biosynthesis of an important component of the fungal cell wall (ergosterol). This causes the impairment of the fungal cell wall. Before you can start treatment on this study, you will have screening tests. These tests will help the doctor decide if you are eligible to take part in this study. You will be asked questions about your medical history. You will have a complete physical exam and a chest x-ray. You will have computed tomography (CT) scans of the chest. You will also have about 1 teaspoon of blood drawn for routine tests. Test results from the pregnancy test that you will have before your leukemia treatment will be looked at for this study. You will not have a pregnancy test performed for this study. If you are found to be eligible to take part in this study, you will be randomly assigned (as in the roll of dice) to one of 3 treatment groups (Group 1, Group 2, or Group 3). Participants in Groups 1 and 2 will receive treatment with ambisome. Participants in Group 3 will receive treatment with voriconazole. Participants in all 3 groups will begin treatment 24 hours after the last dose of chemotherapy. If you are assigned to Group 1, you will receive ambisome by vein as a continuous infusion over 2 hours 1 time per day, 3 times each week. If you are assigned to Group 2, you will receive ambisome by vein as a continuous infusion over 2 hours 1 time per week. If you are assigned to Group 3, you will take 2 pills by mouth (1 hour after breakfast) and 2 pills by mouth (1 hour after dinner) for 1 day, which amounts to 4 pills in total on Day 1. You will then take 1 pill by mouth (1 hour after breakfast) and 1 pill by mouth (1 hour after dinner) everyday for the remainder of this study, which amounts to 2 pills in total each day. You will have about 1 teaspoon of blood drawn for routine tests 2 times each week. You will also receive treatment with standard of care medications. These medications (which will be specified by your doctor) will be used to help decrease the risk of developing bacterial infections and viral infections. If you develop a fever during treatment on this study, you will have a chest x-ray and a CT scan of the chest within 3 days after the fever started. You may remain on this study for up to 35 days (if you are receiving chemotherapy for the first time) and up to 42 days (if you have had prior chemotherapy). Your participation may end on this study if your study doctor thinks it is necessary, if other antifungal therapy is required, or if you develop any intolerable side effects.

Interventions

DRUGVoriconazole

400 mg by mouth twice daily on day 1, followed by 200 mg by mouth twice daily

DRUGLiposomal amphotericin B

3 mg/kg intravenously three times per week over 2 hours +/- 15 minutes

Sponsors

M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

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

Inclusion criteria

* Diagnosis of AML or high risk MDS undergoing induction chemotherapy or first salvage chemotherapy. * Age \>/=18 years. * Patients must sign an informed consent.

Exclusion criteria

* Patients with history of anaphylaxis attributed to azole or amphotericin B compounds. * Patients with clinical or other evidence that indicates that they have proven or probable invasive fungal infection prior to enrollment. * Patients with total bilirubin levels \> 3 times the upper normal limits (i.e. \> 3.0 mg/dl); or serum glutamic pyruvic transaminase (SGPT)\> 5 times upper limit normal. * Patients with serum creatinine \> 2.0 mg/dl. * Patients receiving any medication that is contraindicated with the use of voriconazole. * Patients who have participated in this study during induction chemotherapy.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Invasive Fungal Infection35 days from the start of therapy for induction participants and 42 days for salvage participants.Endpoint was whether participant had an invasive fungal infection or not, a potentially fatal complication with leukemia patients. Efficacy defined as absence of proven and probable fungal infection. Probable fungal infection is: 1) Positive radiographic findings consistent with fungal infections documented on CT imaging: Lower respiratory tract infection: halo sign, air crescent-sign, or cavity within areas of consolidation; Sinus: erosion of sinus walls or extension of infection to neighboring structures, extensive skull base destruction; and/or 2) Two positive galactomannan index test.

Countries

United States

Participant flow

Recruitment details

Recruitment Period: 11/3/2006 to 8/4/09. All patients registered at The University of Texas M.D. Anderson Cancer Center.

Pre-assignment details

Eight of 120 patients registered never received study drug, therefore were excluded from the study.

Participants by arm

ArmCount
Liposomal Amphotericin B: 3 mg/kg
3 mg/kg intravenously (IV) three times per week
39
Liposomal Amphotericin B: 9 mg/kg
9 mg/kg IV once per week
33
Voriconazole: 400 mg
400 mg oral twice daily day 1 followed by 200 mg twice daily
40
Total112

Baseline characteristics

CharacteristicLiposomal Amphotericin B: 3 mg/kgLiposomal Amphotericin B: 9 mg/kgVoriconazole: 400 mgTotal
Age Continuous60 years71 years71 years60 years
Region of Enrollment
United States
39 participants33 participants40 participants112 participants
Sex: Female, Male
Female
19 Participants16 Participants19 Participants54 Participants
Sex: Female, Male
Male
20 Participants17 Participants21 Participants58 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 390 / 330 / 40
serious
Total, serious adverse events
5 / 392 / 334 / 40

Outcome results

Primary

Number of Participants With Invasive Fungal Infection

Endpoint was whether participant had an invasive fungal infection or not, a potentially fatal complication with leukemia patients. Efficacy defined as absence of proven and probable fungal infection. Probable fungal infection is: 1) Positive radiographic findings consistent with fungal infections documented on CT imaging: Lower respiratory tract infection: halo sign, air crescent-sign, or cavity within areas of consolidation; Sinus: erosion of sinus walls or extension of infection to neighboring structures, extensive skull base destruction; and/or 2) Two positive galactomannan index test.

Time frame: 35 days from the start of therapy for induction participants and 42 days for salvage participants.

Population: Outcome evaluability required at least two doses of study drug.

ArmMeasureValue (NUMBER)
Liposomal Amphotericin B: 3 mg/kgNumber of Participants With Invasive Fungal Infection3 participants
Liposomal Amphotericin B: 9 mg/kgNumber of Participants With Invasive Fungal Infection4 participants
Voriconazole: 400 mgNumber of Participants With Invasive Fungal Infection2 participants

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