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About
This phase II trial studies how well topotecan hydrochloride and carboplatin with or without veliparib work in treating patients with myeloproliferative disorders that have spread to other places in the body and usually cannot be cured or controlled with treatment (advanced), and acute myeloid leukemia or chronic myelomonocytic leukemia. Drugs used in chemotherapy, such as topotecan hydrochloride and carboplatin, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Veliparib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving topotecan hydrochloride, carboplatin, and veliparib may work better in treating patients with myeloproliferative disorders and acute myeloid leukemia or chronic myelomonocytic leukemia compared to topotecan hydrochloride and carboplatin alone.
Full description
PRIMARY OBJECTIVE:
I. To estimate and compare the complete response/complete response with incomplete recovery (CR/CRi) rate of induction therapy with topotecan hydrochloride (topotecan)/carboplatin (T/C) with or without veliparib (V) in myeloproliferative disorder associated leukemias and chronic myelomonocytic leukemia (CMML).
SECONDARY OBJECTIVES:
I. To evaluate and compare the toxicities of T/C/V versus (vs.) T/C. II. To compare the 2-year disease-free survival (DFS) and overall survival (OS) in response to T/C/V vs. T/C.
III. To detect and compare the presence of minimal residual disease (MRD) remaining after T/C/V vs. T/C.
IV. Evaluate predictive biomarkers of response via assessment of pretreatment impaired homologous recombination via assessment of:
IVa. Next generation sequencing (NGS) panel for genes mutated in myeloid malignancies done as standard of care per institution.
IVb. Functional impairment of deoxyribonucleic acid (DNA) damage response via assessment of pretreatment samples for radiation-induced RAD51 foci.
IVc. Topotecan-induced stabilization of topoisomerase I-DNA covalent complexes, which has recently been observed to be a critical predictor of response to combination of a topoisomerase I poison and PARP inhibitor in xenografts.
V. To evaluate veliparib exposure and contribution to response (efficacy and toxicity).
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM A: Patients receive veliparib orally (PO) twice daily (BID) on days 1-21 and topotecan hydrochloride intravenously (IV) continuously over 24 hours and carboplatin IV continuously over 24 hours on days 3-7. Treatment repeats every 28-63 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity.
ARM B: Patients receive topotecan hydrochloride IV continuously over 24 hours and carboplatin IV continuously over 24 hours on days 1-5. Treatment repeats every 28-63 days for up to 4 cycles in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up for a minimum of 30 days, or longer.
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Inclusion criteria
PRE-REGISTRATION ELIGIBILITY CRITERIA
Newly diagnosed acute myeloid leukemia (AML) associated with antecedent myeloproliferative disorder (polycythemia vera, essential thrombocythemia, myelofibrosis, atypical chronic myeloid leukemia, chronic myelomonocytic leukemia and related undifferentiated myeloproliferative/myelodysplastic disorders)
Relapsed/refractory AML associated with antecedent myeloproliferative disorder (polycythemia vera, essential thrombocythemia, myelofibrosis, atypical chronic myeloid leukemia, chronic myelomonocytic leukemia and related undifferentiated myeloproliferative/myelodysplastic disorders) who have received two or fewer prior induction chemotherapy courses
Accelerated phase myeloproliferative disorders per Zeider et al with two or fewer prior therapies
Bone marrow and/or peripheral blood specimens will be submitted for correlative studies; patients with a dry tap will still be eligible
RANDOMIZATION ELIGIBILITY CRITERIA
Bone marrow aspirate and/or peripheral blood specimens were submitted to the central lab and site has confirmation by the local institution that the patient meets one of the criteria specified above
Eastern Cooperative Oncology Group (ECOG) performance status =< 2 or Karnofsky >= 60%
Total bilirubin less than 2.0 mg/dL unless due to Gilbert's syndrome, then less than 5.0 mg/dL
Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) less than 5 x institutional upper limit of normal
Creatinine clearance glomerular filtration rate (GFR) greater than 30 ml/min per modified Cockcroft-Gault formula
Interval of greater than 4 weeks since allogeneic blood or marrow transplantation (BMT) if performed; and absence of active graft versus host disease (GVHD)
The effects of veliparib on the developing human fetus are unknown; for this reason and because PARP inhibiting agents as well as topoisomerase inhibitors and platinating agents are known to be teratogenic, women of child-bearing potential must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 6 months following the last dose of study drug; should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately; men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 4 months after completion of veliparib administration
Ability to understand and the willingness to sign a written informed consent document
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25 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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