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Omacetaxine and Low Dose Cytarabine in Older Patients With Acute Myelogenous Leukemia (AML) and High-Risk Myelodysplastic Syndrome (MDS)

A Phase II Study of Omacetaxine (OM) and Low Dose Cytarabine (LDAC) in Older Patients With Acute Myelogenous Leukemia (AML) and High-Risk Myelodysplastic Syndrome (MDS)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01272245
Enrollment
36
Registered
2011-01-07
Start date
2011-07-31
Completion date
2017-01-31
Last updated
2018-05-30

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

Conditions

Leukemia

Keywords

Acute Myelogenous Leukemia, AML, High-Risk Myelodysplastic Syndrome, MDS, Omacetaxine, Cytarabine, ARA-C, Cytosar, DepoCyt, Cytosine Arabinosine Hydrochloride

Brief summary

The goal of this clinical research study is to learn if omacetaxine given with cytarabine can help to control the disease in patients with AML or high-risk MDS. The safety of the study drugs will also be studied.

Detailed description

Study Drugs: Omacetaxine is designed to block certain proteins, which may cause cancer cells to die. Cytarabine is designed to insert itself into DNA (the genetic material of cells) of cancer cells and stop the DNA from repairing itself. Study Drug Administration: If you are found to be eligible to take part in this study, you will receive omacetaxine and cytarabine as an injection under the skin. You will receive instructions on how to give these injections to yourself. You will be given a Research Medication Diary to record the drugs you take each day. You must bring the Research Medication Diary and any unused drugs with you to each study visit. You will also be told how to properly store the drugs. On Days 1-3 of each cycle, you will give yourself an injection of omacetaxine every 12 hours (+/- 3 hours). On Days 1-7 of each cycle, you will give yourself an injection of cytarabine every 12 hours (+/- 3 hours). Each cycle will be 4-7 weeks, depending on how well the disease responds to the study drugs. Depending on how the disease responds to the study drugs, the number of days you receive your injections may stay the same, increase, or decrease. Your doctor will discuss this with you. Study Visits: On Day 1 of each cycle, you will have a physical exam. Women who are able to become pregnant must have a negative blood (about 1/2 teaspoon) or urine pregnancy test within 3 days before receiving the first dose of study drug. Blood (about 1 tablespoon) will be drawn every week for routine tests. Once you have a response to treatment, blood will then be drawn every 2-4 weeks while you are receiving treatment. If your doctor thinks it is needed, you may have more blood samples drawn during Cycles 1 and 2. On Day 21 of Cycle 1 (+/- 7 days), then every 4 weeks after that, you will have a bone marrow aspiration and/or biopsy to check the status of the disease. If the doctor thinks it is needed, these may be done more or less often, depending on your response to treatment. Length of Study: You may receive up to 24 cycles of treatment. You will be taken off study early if the disease gets worse or intolerable side effects occur. Follow-up: Once you stop taking the study drugs, you will have follow-up for 5 years. Every 4-8 weeks, blood (about 1 tablespoon) will be drawn for routine tests. If you cannot return to the clinic, you may have blood drawn at a clinic close to your home. Every 3-6 months, you will be contacted during a clinic visit and asked how you are doing. If you cannot make it to the clinic for this visit, you will be called. The phone call should last about 5 minutes. This is an investigational study. Omacetaxine is FDA approved to treat patients with certain types of leukemia. Its use in this study is investigational. Cytarabine is FDA approved and commercially available for the treatment of AML. The use of these drugs in combination is investigational. Up to 60 patients will take part in this study. All will be enrolled at M. D. Anderson.

Interventions

1.25 mg/m2 subcutaneously (SQ) every 12 hours (+/- 3 hours) for 3 days (Days 1-3). Each cycle will be 4-7 weeks.

DRUGCytarabine

20 mg subcutaneously every 12 hours (+/- 3 hours) for 7 days (Days 1-7). Each cycle will be 4-7 weeks.

Sponsors

Cephalon
CollaboratorINDUSTRY
M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Previously untreated AML (\>/= 20% blasts). Patients with high-risk (intermediate-2 or high by International Prostate Symptom Score (IPSS) or ≥10% blasts) MDS will also be eligible. Prior therapy with hydroxyurea, biological or targeted therapy (e.g. flt3 inhibitors, other kinase inhibitors, azacitidine), or hematopoietic growth factors is allowed. A single or a two day dose of cytarabine (up to 3 g/m2) for emergency use is also allowed as prior therapy. 2. Age \>/= 60 years. 3. Eastern Cooperative Oncology Group (ECOG) performance status \</= 2. 4. Adequate hepatic (serum total bilirubin \</= 1.5 x ULN, serum glutamate pyruvate transaminase (SGPT) and/or serum glutamate oxaloacetate transaminase (SGOT) \</= 2.5 x ULN) and renal function (creatinine \</= 2.0 mg/dL). 5. Patients must be willing and able to review, understand, and provide written consent before starting therapy.

Exclusion criteria

1. New York Heart Association (NYHA) class III or IV heart disease, active ischemia or any other uncontrolled cardiac condition such as angina pectoris, clinically significant cardiac arrhythmia and requiring therapy, uncontrolled hypertension (blood pressure \>/= 160 systolic and \>/= 110 diastolic not responsive to antihypertensive medication), diabetes mellitus, or congestive heart failure. 2. Myocardial infarction in the previous 12 weeks (from the start of treatment). 3. Active and uncontrolled disease/infection as judged by the treating physician. 4. Pregnancy. 5. Acute promyelocytic leukemia (APL). 6. Women of childbearing potential and men who do not practice contraception. Non-childbearing is defined as \>/= 1 year postmenopausal or surgically sterilized. 7. Women of childbearing potential and men must agree to use contraception prior to study entry and for the duration of study participation.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Complete Remission (CR)Up to 4 monthsComplete response (CR) defined as: Peripheral blood counts, no circulating blasts, neutrophil count ≥ 1.0 ×109/L, platelet count ≥ 100 ×109/L, bone marrow aspirate and biopsy, ≤5% blasts, no detectable auer rods, no extramedulary leukemia

Secondary

MeasureTime frameDescription
Evaluation of CR DurationUp to 5 years after completion of active treatment and while on study. Participants may receive up to 24 courses of study medication.The date of Complete Response to the date of loss of response or last follow-up.
Disease-free SurvivalUp to 5 years after completion of active treatment and while on study. Participants may receive up to 24 courses of study medication.Time from date of treatment start until the date of first objective documentation of disease-relapse.
Overall SurvivalUp to 5 years after completion of active treatment and while on study. Participants may receive up to 24 courses of study medication.Time from date of treatment start until date of death due to any cause
Induction MortalityUp to 1 yearDeath within 8 weeks from the start of treatment.

Countries

United States

Participant flow

Recruitment details

Recruitment Period: 7/14/2011through 1/9/2015. All participants recruited at The University of Texas MD Anderson Cancer Center.

Participants by arm

ArmCount
Omacetaxine and Cytarabine
Omacetaxine 1.25 mg/m2 subcutaneously (SQ) every 12 hours for 3 days + Cytarabine 20 mg SQ for 7 days of 4-7 week cycle.
36
Total36

Baseline characteristics

CharacteristicOmacetaxine and Cytarabine
Age, Continuous71 years
Region of Enrollment
United States
36 Count of Participants
Sex: Female, Male
Female
17 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
4 / 36
other
Total, other adverse events
15 / 36
serious
Total, serious adverse events
20 / 36

Outcome results

Primary

Percentage of Participants With Complete Remission (CR)

Complete response (CR) defined as: Peripheral blood counts, no circulating blasts, neutrophil count ≥ 1.0 ×109/L, platelet count ≥ 100 ×109/L, bone marrow aspirate and biopsy, ≤5% blasts, no detectable auer rods, no extramedulary leukemia

Time frame: Up to 4 months

ArmMeasureValue (NUMBER)
Omacetaxine and CytarabinePercentage of Participants With Complete Remission (CR)44 percentage of participants
Secondary

Disease-free Survival

Time from date of treatment start until the date of first objective documentation of disease-relapse.

Time frame: Up to 5 years after completion of active treatment and while on study. Participants may receive up to 24 courses of study medication.

ArmMeasureValue (MEDIAN)
Omacetaxine and CytarabineDisease-free Survival3.1 Months
Secondary

Evaluation of CR Duration

The date of Complete Response to the date of loss of response or last follow-up.

Time frame: Up to 5 years after completion of active treatment and while on study. Participants may receive up to 24 courses of study medication.

ArmMeasureValue (MEDIAN)
Omacetaxine and CytarabineEvaluation of CR Duration10.6 Months
Secondary

Induction Mortality

Death within 8 weeks from the start of treatment.

Time frame: Up to 1 year

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Omacetaxine and CytarabineInduction Mortality4 Participants
Secondary

Overall Survival

Time from date of treatment start until date of death due to any cause

Time frame: Up to 5 years after completion of active treatment and while on study. Participants may receive up to 24 courses of study medication.

ArmMeasureValue (MEDIAN)
Omacetaxine and CytarabineOverall Survival8.1 Months

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