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About
The main purpose of this investigational research study is to determine how safe and tolerable the study drug volasertib is in combination with liposomal vincristine (Marqibo; an FDA-approved drug) in patients with relapsed/refractory acute lymphoblastic leukemia. While VSLI demonstrated an overall response rate of 35% in Acute Lymphoblastic Leukemia (ALL) patients that had failed to respond to or relapsed after chemotherapy, combining it with other agents may increase clinical benefit.
Volasertib inhibits proteins involved in the cell cycle that are increased in ALL. When volasertib inhibits these proteins ALL cells die. In the laboratory, volasertib has been shown to increase activity of vincristine against ALL cells. Therefore, we think the combination of volasertib and VSLI will be more effective against your leukemia than either drug used alone. This study will try to find out what effects, good and/or bad, this drug combination has on the patient and their cancer, and to find a dose that may be used in future studies.
Full description
PRIMARY OBJECTIVES:
I. To determine the maximum tolerated dose (MTD) of the combination of volasertib and vincristine sulfate liposomal injection (VSLI) in relapsed/refractory (RR) acute lymphoblastic leukemia (ALL).
SECONDARY OBJECTIVES:
I. To determine the toxicity profile of volasertib and VSLI, rate of complete remission (with or without complete hematologic recovery; complete response [CR]/CR with incomplete hematologic recovery [CRi]), duration of remission (DOR), rate of minimal residual disease (MRD)-negativity, progression free survival (PFS), overall survival (OS), 30-day mortality rate.
TERTIARY OBJECTIVES:
I. To determine if volasertib and polo-like kinase (plk)-inhibition down-regulates the mammalian target of rapamycin (mTOR) pathway.
II. Whether plk and mTOR inhibition correlates with clinical response to treatment. III. to determine if volasertib acts synergistically to potentiate the bioavailability and distribution of VSLI.
OUTLINE: This is a dose-escalation study of volasertib.
Patients receive volasertib intravenously (IV) over 1 hour on day 1 and vincristine sulfate liposome IV over 1 hour on days 1, 8, 15, and 22. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression, development of an inter-current illness that prevents further administration of treatment, unacceptable toxicity, patient decides to withdraw or treating investigator determines that the patient should be taken off treatment for any reason.
After completion of study, patients are followed up every 28 days for up to 1 year.
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Inclusion criteria
Patients must have histologically confirmed diagnosis of Philadelphia-negative ALL by bone marrow biopsy or aspirate
Patients must have >= 5% blasts in the bone marrow
Patients must have refractory disease, disease relapse or progression after at least two prior systemic chemotherapy or immunotherapy regimens
Patients with a history of CNS (central nervous system) leukemia are eligible if they are not symptomatic from current CNS involvement; if there is CNS involvement that is known prior to enrollment or identified subsequently, it will be treated accordingly with intrathecal chemotherapy per the treating physician
Patients must exhibit an Eastern Cooperative Oncology Group (ECOG) performance status of =< 2
Patients must have adequate organ function within 14 days prior to registration, as defined below:
Total bilirubin =< 2 x institutional upper limit of normal (ULN)
Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/aspartate aminotransferase (ALT) (serum glutamic pyruvic transaminase [SPGT]) =< 3 x ULN
Creatinine =< 2 X ULN
Females of child-bearing potential (FOCBP) and males 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 completion of therapy; should a female patient become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately
NOTE: A FOCBP is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
FOCBP must have a negative pregnancy test within 14 days prior to registration on study
Patients must have the ability to understand and the willingness to sign a written informed consent prior to registration on study
Exclusion criteria
Patients who have had chemotherapy, immunotherapy, or radiotherapy within 2 weeks prior to entering the study or those who have not recovered from adverse events (=< grade 1 or patient's baseline) due to agents administered more than 2 weeks earlier are not eligible
Patients may not be receiving any other investigational agents within 7 days of registration
Patients may not be receiving any medications that are known to prolong QT interval unless reviewed and approved by the principal investigator (PI)
Patients who have a history of allergic reactions attributed to compounds of similar chemical or biologic composition to volasertib or VSLI are not eligible
Subject may not have had hematopoietic stem cell transplant (HSCT) meeting any of the following:
Patients with >= grade 2 sensory or motor neuropathy are not eligible
Fridericia's corrected QT (QTcF) prolongation > 470 ms or QT prolongation deemed clinically relevant by the investigator (e.g., congenital long QT syndrome); the QTcF will be calculated as the mean of the 3 electrocardiograms (ECGs) taken at screening
Patients who have an uncontrolled intercurrent illness including, but not limited to any of the following, are not eligible:
Ongoing or active infection requiring systemic treatment
Symptomatic congestive heart failure (>= class 3)
Unstable angina pectoris
Cardiac arrhythmia
Psychiatric illness/social situations that would, in the investigator's opinion, limit compliance with study requirements
Known human immunodeficiency virus (HIV) infection
Known John Cunningham virus (JC) virus infection and/or progressive multifocal leukoencephalopathy (PML)
Known clinically active hepatitis A, B, or C infections
Second malignancy that requires active treatment
Any other illness or condition that the treating investigator feels would interfere with study compliance or would compromise the patient's safety or study endpoints
Female patients who are pregnant or nursing are not eligible
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Data sourced from clinicaltrials.gov
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