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This randomized phase III trial studies lenalidomide to see how well it works with or without epoetin alfa in treating patients with myelodysplastic syndrome and anemia. Lenalidomide may stop the growth of myelodysplastic syndrome by blocking blood flow to the cells. Colony stimulating factors, such as epoetin alfa, may increase the number of immune cells found in bone marrow or peripheral blood. It is not yet known whether lenalidomide is more effective with or without epoetin alfa in treating patients with myelodysplastic syndrome and anemia.
Full description
PRIMARY OBJECTIVE:
I. To compare the rate of major erythroid response (MER) between lenalidomide monotherapy and combined treatment of lenalidomide and epoetin alfa in erythropoietin non-responsive low-/intermediate-1 (Int-1)-risk myelodysplastic syndrome (MDS) patients or erythropoietin treatment naïve patients with low probability of erythropoietin benefit.
SECONDARY OBJECTIVES:
I. To compare the time to MER by treatment assignment. II. To evaluate the duration of MER by treatment assignment. III. To estimate the frequency of MER to salvage combination therapy in patients who fail to experience a MER with lenalidomide monotherapy.
IV. To evaluate and compare the frequency of minor erythroid response by treatment assignment.
V. To investigate the mechanism and target of lenalidomide action in patients with chromosome 5q31.1 deletion.
VI. To evaluate the frequency of cytogenetic response and progression, and the relation between cytogenetic pattern and erythroid response.
VII. To evaluate the frequency of bone marrow response (complete response [CR] + partial response [PR]).
VIII. To evaluate the relationship between erythroid response and laboratory correlates outlined below:
VIIIa. Pretreatment and on study endogenous erythropoietin level (Arm A). VIIIb. To evaluate the effect of CD45 isoform profile on lenalidomide enhancement of erythropoietin-induced STAT5 phosphorylation in CD71^Hi erythroid precursors and the relationship to erythroid response.
VIIIc. To characterize molecular targets relevant to lenalidomide cytotoxicity in del5q31.1 cells.
VIIId. To evaluate the frequency of cryptic chromosome 5q31.1 deletions in patients with non-del5q31.1 MDS by array-based genomic scan, and to determine the relationship to hematologic response.
OUTLINE: Patients are randomized to 1 of 2 treatment arms. Patients with del 5q31.1 karyotype are assigned to Arm A.
ARM A: Patients receive lenalidomide orally (PO) once daily (QD) on days 1-21. Patients undergo bone marrow biopsy at screening and during follow-up. Patients undergo blood specimen collection on study.
ARM B: Patients receive lenalidomide PO QD on days 1-21 and epoetin alfa subcutaneously (SC) once weekly. Patients undergo bone marrow biopsy at screening and during follow-up. Patients undergo blood specimen collection on study.
In both arms, treatment repeats every 28 days for 4 cycles. Patients who achieve a major erythroid response (MER) may continue treatment beyond 4 cycles in the absence of disease progression, disease conversion to acute myeloid leukemia, or unacceptable toxicity. Patients in Arm A who fail to achieve MER or who achieve MER but relapse after 16 weeks of treatment with lenalidomide may crossover and receive treatment in Arm B.
After completion of study treatment, patients are followed up for 6 months.
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Inclusion criteria
Age >= 18 years
NOTE: Results of the bone marrow biopsy and aspirate as well as cytogenetics are mandatory to register subjects onto study, which are indispensable to determine International Prognostic Scoring System (IPSS) category needed for eligibility; please note that it is not necessary to wait for the week 16, week 32, or week bone marrow and cytogenetic results prior to starting the next cycle unless deemed necessary by the treating physician; one example of this exception can include if the subject shows signs of progression, such as increased peripheral blood blast percentage; at that juncture, the treating physician may prefer to await the results prior to starting a new cycle; if a cycle is started, and based on the bone marrow results it is felt by the treating physician that the subject should not continue on treatment, please be sure to note this information on the case report forms at end of treatment
Patient must have documented diagnosis of MDS lasting at least three months (MDS duration >= 3 months) according to World Health Organization (WHO) criteria or non-proliferative chronic myelomonocytic leukemia (CMML) (white blood cell [WBC] < 12,000/mcL)
Patient must have International Prognostic Scoring System (IPSS) categories of low- or intermediate-1-risk disease; patients must have IPSS score determined by cytogenetic analysis prior to randomization; patients must have cytogenetic analysis done (to calculate IPSS); if the current bone marrow biopsy is a dry tap, patients with cytogenetic failure and < 10% marrow blasts will be eligible; subjects with cytogenetic failure must have previous cytogenetic results (fluorescence in situ hybridization [FISH] is not a substitute) within the last 6 months post last type of MDS treatment (in this case, not referring to growth factors as type of MDS treatment)
Must have symptomatic anemia untransfused with hemoglobin < 9.5 g/dL =< 8 weeks prior to randomization or with red blood cells (RBC) transfusion dependence (i.e., >= 2 units/month) confirmed for =< 8 weeks before randomization
Applies only for patients without the deletion 5q 31.1; patients must have failed treatment with an erythropoietic growth factor, or have a low probability of response to rhu-erythropoietin; patients with low probability of response to rhu-erythropoietin or prior erythropoietin failures are defined as follows:
Patients must be off all non-transfusion therapy for MDS for 28 days prior to initiation of study treatment, including all types of growth factors; patients may receive hydrocortisone prophylactically to prevent transfusion reactions
Patients must have a serum erythropoietin level documented before randomization and =< 56 days before day 1 of study treatment; NOTE: hemoglobin must be < 9.5 g/dL at time that serum erythropoietin is drawn
Effective contraception must be used by patients participating in lenalidomide therapy, and all patients must agree to counseling by a trained counselor every 28 days about pregnancy precautions and risks of fetal exposure; females of childbearing potential (FCBP) must either commit to continued abstinence from heterosexual intercourse or begin TWO acceptable methods of birth control: one highly effective method and one additional effective method AT THE SAME TIME, at least 28 days before starting lenalidomide, during lenalidomide therapy, during dose interruptions, and for at least 28 days following discontinuation of lenalidomide therapy; females of childbearing potential should be referred to a qualified provider of contraceptive methods, if needed; males receiving lenalidomide must agree to use a latex condom during any sexual contact with females of childbearing potential even if they have undergone a successful vasectomy
Platelet count >= 50,000/mcL (50 x 10^9/L) without platelet transfusion (within 56 days prior to randomization)
Absolute neutrophil count (ANC) >= 500 cells/mcL (0.5 x 10^9/L); hence ANC must be >= 500/mcL without myeloid growth factor support (within 56 days prior to randomization)
Serum creatinine =< 1.5 times upper limit of normal (ULN) (within 56 days prior to randomization)
Serum glutamic oxaloacetic transaminase (SGOT)/aspartate aminotransferase (AST) or serum glutamate pyruvate transaminase (SGPT)/alanine aminotransferase (ALT) =< 2.0 x ULN (within 56 days prior to randomization)
Serum total bilirubin < 3.0 mg/dL (within 56 days prior to randomization)
Inclusion criteria for crossover registration from Arm A (lenalidomide alone) to Arm B (lenalidomide and epoetin alfa):
Patients must have completed 16 weeks of monotherapy with lenalidomide
Patients must show failure to achieve MER (major erythroid response) or have achieved MER but relapsed on Arm A
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247 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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