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Trials / Terminated

TerminatedNCT03519984

EphB4-HSA Fusion Protein and Cytarabine /or Liposomal Vincristine in Patients With Recurrent or Refractory Acute Leukemia

A Phase I Dose Escalation Study With Expansion to Evaluate the Safety of SEPHB4-HSA in Combination With Cytarabine or Liposomal Vincristine in Patients With Relapsed or Refractory Acute Leukemia

Status
Terminated
Phase
Phase 1
Study type
Interventional
Enrollment
3 (actual)
Sponsor
University of Southern California · Academic / Other
Sex
All
Age
18 Years
Healthy volunteers
Not accepted

Summary

This phase I trial studies the side effects and best dose of recombinant EphB4-HSA fusion protein when given together with cytarabine or vincristine liposomal in treating participants with acute leukemia that has come back or has not responded to treatment. Drugs used in chemotherapy, such as recombinant ephb4-HSA fusion protein, cytarabine, and vincristine liposomal, 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. Giving the drugs in different combinations may kill more cancer cells.

Detailed description

PRIMARY OBJECTIVES: I. Characterize the DLTs (dose limiting toxicities) and overall toxicity profile of recombinant EphB4-HSA fusion protein (sEPHB4-HSA) as a single agent and in combination with cytarabine or liposomal vincristine in patients with acute leukemia. SECONDARY OBJECTIVES: I. Estimate the clinical response (including minimal residual disease \[MRD\]) in blood and bone marrow of sEPHB4-HSA in combination with cytarabine in patients with relapsed/refractory acute myeloid leukemia. II. Estimate the clinical response (including MRD) in blood and bone marrow of sEPHB4-HSA in combination with liposomal vincristine in patients with relapsed/refractory acute lymphoid leukemia. III. Estimate the single agent clinical response of sEPHB4-HSA in blood and bone marrow of patients with relapsed/refractory acute myeloid leukemia (AML) or acute lymphoid leukemia (ALL). IV. Assess pharmacokinetics of sEPHB4-HSA as a single agent and in combination with cytarabine or liposomal vincristine in patients with leukemia. EXPLORATORY OBJECTIVES: I. Estimate progression-free survival and overall survival in patients treated with sEPHB4-HSA in combination with cytarabine or liposomal vincristine. II. Estimate percentage of patients proceeding to allogeneic stem cell transplantation. III. Correlate expression of EPHB4 leukemic blasts and ephrinB2 in bone marrow microenvironment with response to sEPHB4-HSA. IV. Evaluate the effect of sEPHB4-HSA on downstream protein mediators of the EPHB4 pathway (phosphorylated \[p\]AKT, pS6) on leukemic blasts and determine if these can be used as biomarkers of response to treatment. V. Profile the immuno-modulatory effects of sEPHB4-HSA on peripheral blood leukocytes and in the tumor microenvironment. OUTLINE: This is a dose-escalation study of recombinant EphB4-HSA fusion protein. Participants are randomized to 1 of 2 arms. ARM A: Participants receive recombinant EphB4-HSA fusion protein intravenously (IV) over 60 minutes on days 1, 8, 15, and 22 and cytarabine IV over 4 hours on days 1-5. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity. ARM B: Participants receive recombinant EphB4-HSA fusion protein IV over 60 minutes on days 1, 8, 15, and 22 and vincristine liposomal IV over 60 minutes on days 1, 8, 15, and 22. Treatment repeats every 28 days for up to 2 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, participants are followed up at 3 months.

Conditions

Interventions

TypeNameDescription
DRUGCytarabineGiven IV
OTHERLaboratory Biomarker AnalysisCorrelative studies
BIOLOGICALRecombinant EphB4-HSA Fusion ProteinGiven IV
DRUGVincristine LiposomalGiven IV

Timeline

Start date
2018-05-09
Primary completion
2020-11-24
Completion
2020-11-24
First posted
2018-05-09
Last updated
2021-11-30

Locations

1 site across 1 country: United States

Regulatory

Source: ClinicalTrials.gov record NCT03519984. Inclusion in this directory is not an endorsement.