NCT03737955 · University of Washington
Fractionated Gemtuzumab Ozogamicin in Treating Measurable Residual Disease in Patients With Acute Myeloid Leukemia
What this study is about
This phase II trial studies the how well fractionated gemtuzumab ozogamicin works in treating measurable residual disease in patients with acute myeloid leukemia. Gemtuzumab ozogamicin is a monoclonal antibody, called gemtuzumab, linked to a chemotherapy drug, called ozogamicin.
View original scientific description
This phase II trial studies the how well fractionated gemtuzumab ozogamicin works in treating measurable residual disease in patients with acute myeloid leukemia. Gemtuzumab ozogamicin is a monoclonal antibody, called gemtuzumab, linked to a chemotherapy drug, called ozogamicin. Gemtuzumab is a form of targeted therapy because it attaches to specific molecules (receptors) on the surface of cancer cells, known as CD33 receptors, and delivers a chemotherapy known as calicheamicin to kill them.
Interventions
DRUG
Gemtuzumab Ozogamicin
Receive IV
OTHER
Quality-of-Life Assessment
Ancillary studies
Primary outcome measures
Clinical response rate
Time frame: Up to 70 days
Measured by clearance of measurable residual disease (MRD) with bone marrow evaluation after one or two cycles of therapy and compare responses (rate of eradication of MRD) based on CD33 single nucleotide polymorphism rs12459419 genotype.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Prior diagnosis AML based on 2016 World Health Organization criteria. Acute promyelocytic leukemia (APL) and biphenotypic AML are not eligible
- Patients must have MRD-level disease only and otherwise meet criteria for complete response (CR) or complete remission with incomplete hematologic recovery (CRi) per the 2017 European Leukemia Net response criteria (\< 5% blasts in the marrow without a requirement for peripheral blood count recovery). MRD must be measurable by multiparameter flow cytometry (MPFC) and/or polymerase chain reaction (PCR)-based molecular markers and/or karyotypic markers (e.g., classical cytogenetics or fluorescence in situ hybridization). MRD status will be centrally confirmed by the UW/FHCRC clinical laboratory in order to standardize response assessment following administration of study therapy.
- Patients must have received at least 1 cycle of standard induction chemotherapy prior to enrollment on the study. However, adult patients (\>= 18 years of age) are eligible for participation at any time point in treatment (after induction, during or after consolidation, pre-transplant, or post-transplant).
- Age \>= 18 years of age
- Eastern Cooperative Oncology Group (ECOG) performance status =\< 3
- Patient's AML blasts must have CD33 expression.
- For adults (\>= 18 years of age): Serum creatinine =\< 2.0 mg/dL.
- For adults (\>= 18 years of age): Total bilirubin =\< 2 x institutional upper limit of normal for age (unless known history of Gilbert's disease).
- For adults (\>= 18 years of age): Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \< 2.5 x institutional upper limit of normal for age (unless thought to be related to resolving infectious complications).
- Ability of patient to provide written informed consent.
- Females of childbearing potential must have a negative pregnancy test prior to receiving GO.
- Patients who re-enroll must have achieved an MRD-negative CR during their prior enrollment
Exclusion criteria
- Subjects who have had chemotherapy or radiation therapy within 14 days prior to entering the study.
- Subjects may not be receiving other investigational agents.
- Uncontrolled or concurrent illness including, but not limited to, uncontrolled infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
Where
- Seattle, Washington
Collaborators
Pfizer
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jan 28, 2026 · Source of record for eligibility and locations