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Combination 5-azacitidine and Gemtuzumab Ozogamicin Therapy for Treatment of Relapsed Acute Myeloid Leukemia (AML)

A Phase I/II Trial of the Combination 5-azacitidine and Gemtuzumab Ozogamicin Therapy for Treatment of Relapsed AML

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00766116
Enrollment
50
Registered
2008-10-03
Start date
2005-07-31
Completion date
2014-09-26
Last updated
2019-02-18

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

Conditions

Acute Myeloid Leukemia

Keywords

AML

Brief summary

This study will test an experimental combination of the drugs Mylotarg and 5-azacitidine in the hopes of finding a treatment that may be effective against Acute Myeloid Leukemia that has come back after treatment.

Detailed description

In the Phase I portion of the study patients with a diagnosis of AML who have relapsed disease will be treated with an assigned number of doses of 5 azacitidine followed by Mylotarg administered two times over two weeks In the Phase II portion of the study patients will be treated with the dose of 5azacitidine determined to be safe in the Phase I portion of the study followed by Mylotarg. A sample of blood or bone marrow will be obtained prior to initiation of treatment and another sample obtained after treatment with 5-azacitidine but before Mylotarg and the samples will be tested in the laboratory to determine response to treatment.

Interventions

Given in cohorts of 3 starting with 2 doses of 5-azacitidine. The doses of 5-azacitidine will be escalated to 4 and then 6 doses if the dose escalation rules permit.

DRUGGemtuzumab ozogamicin

Mylotarg given 2 times over 2 weeks

Sponsors

Celgene Corporation
CollaboratorINDUSTRY
Pfizer
CollaboratorINDUSTRY
University of California, San Diego
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Relapsed AML * Eastern Cooperative Oncology Group (ECOG) performance status 0-2, and life expectancy \> 3 months * ≥ 18 years old * Previously untreated for current AML relapse * Adequate organ function * Written informed consent

Exclusion criteria

* Pregnant or breast-feeding women * Growth factors that support platelet or white cell number or function must not have been administered within the past 7 days * Currently receiving another investigational drug * Currently receiving other anti-cancer agents * Uncontrolled infection * HIV positive * Received previous therapy with either Mylotarg or 5-azacitidine

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Dose Limiting Toxicitiesup to 28 daysMTD was the maximum number of 5-azacitadine doses (75mg/m2) at which fewer than 1/3 of patients experienced a DLT during cycle 1 of therapy based on CTCAE Version 3.0. In the phase I portion, we assessed 3 dose levels of azacitidine starting on day 1, with 6, 4, and 4 patients in cohort 1, 2, and 3, respectively. We identified no dose-limiting toxicities and identified the phase 2 dose as 75 mg/m2 of 5-azacitadine for 6 days.

Secondary

MeasureTime frame
Number of Participants With Response to the Combination Treatment of Mylotarg With 5-azacitidineHematologic and Cytogeneic Response to treatment will be assessed when evaluated at the time the ANC has reached 1000/mm3 for three consecutive days, assessed up to 4 years

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment
5-Azacitidine, Gemtuzumab ozogamicin 5-Azacitidine: A = given in cohorts of 3 starting with 2 doses of 5-azacitidine. The doses of 5-azacitidine will be escalated to 4 and then 6 doses if the dose escalation rules permit Gemtuzumab ozogamicin: M = Mylotarg given 2 times over 2 weeks
50
Total50

Baseline characteristics

CharacteristicTreatment
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
24 Participants
Age, Categorical
Between 18 and 65 years
26 Participants
Region of Enrollment
United States
50 Participants
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
24 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
44 / 50
serious
Total, serious adverse events
20 / 50

Outcome results

Primary

Number of Participants With Dose Limiting Toxicities

MTD was the maximum number of 5-azacitadine doses (75mg/m2) at which fewer than 1/3 of patients experienced a DLT during cycle 1 of therapy based on CTCAE Version 3.0. In the phase I portion, we assessed 3 dose levels of azacitidine starting on day 1, with 6, 4, and 4 patients in cohort 1, 2, and 3, respectively. We identified no dose-limiting toxicities and identified the phase 2 dose as 75 mg/m2 of 5-azacitadine for 6 days.

Time frame: up to 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 Cohort 1Number of Participants With Dose Limiting Toxicities0 Participants
Phase 1 Cohort 2Number of Participants With Dose Limiting Toxicities0 Participants
Phase 1 Cohort 3Number of Participants With Dose Limiting Toxicities0 Participants
Secondary

Number of Participants With Response to the Combination Treatment of Mylotarg With 5-azacitidine

Time frame: Hematologic and Cytogeneic Response to treatment will be assessed when evaluated at the time the ANC has reached 1000/mm3 for three consecutive days, assessed up to 4 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 Cohort 1Number of Participants With Response to the Combination Treatment of Mylotarg With 5-azacitidine36 Participants

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