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S0910, A Phase II Study of Epratuzumab (NSC-716711) in Combination With Cytarabine and Clofarabine for Patients With Relapsed or Refractory Ph- Negative Precursor B-Cell Acute Lymphoblastic Leukemia

Phase 2
16 Years
Open (Enrolling)

Thank you

Trial Information

S0910, A Phase II Study of Epratuzumab (NSC-716711) in Combination With Cytarabine and Clofarabine for Patients With Relapsed or Refractory Ph- Negative Precursor B-Cell Acute Lymphoblastic Leukemia


- To test whether the complete remission (CR) rate (CR and incomplete CR) in adult
patients with relapsed or refractory precursor B-cell acute lymphoblastic leukemia is
sufficiently high after treatment with cytarabine, clofarabine, and epratuzumab to
warrant further investigation.

- To estimate the frequency and severity of toxicities associated with the dosing
schedule of cytarabine, clofarabine, and epratuzumab used in this study.

- To investigate, preliminarily, the effect of laboratory correlates (minimal
post-treatment residual disease, expression of nucleoside transporters, and expression
of other pertinent genes by tissue microarray) and cytogenetic factors on prognosis in
this patient population.

- To investigate, preliminarily, whether the expression of specific genes, such as OPAL-1
(outcome predictor in acute leukemia 1), RANTES, and connective tissue growth factor,
associated with poor outcome in retrospective studies, correlates with outcome in this
study.(Closed as of 07/01/2010)

OUTLINE: This is a multicenter study.

Patients receive cytarabine IV over 2 hours on days 1-5, clofarabine IV over 1 hour on days
2-6, and epratuzumab IV over at least 1 hour on days 7, 14, 21, and 28 in the absence of
disease progression or unacceptable toxicity*.

NOTE: * Prophylactic intrathecal methotrexate is required for patients < 22 years of age,
and is recommended (but not required) for patients ≥ 22 years of age.

Blood samples, bone marrow samples, and/or tumor tissue samples may be collected for further
laboratory analysis.

After completion of study treatment, patients are followed up every 3 months for 2 years and
then annually for 3 years.

Inclusion Criteria


- Morphologically confirmed precursor B-cell acute lymphoblastic leukemia (ALL) (non

- Must have evidence of disease in bone marrow or peripheral blood

- Immunophenotyping of the blood or marrow lymphoblasts must be performed to
determine lineage (B cell, T cell, or mixed B/T cell)

- Must have ≥ 5% lymphoblasts present in the blood or bone marrow

- At least 20% of marrow and/or peripheral blood lymphoblasts must be CD22+
by flow cytometry

- Co-expression of myeloid antigens (CD13 and CD33) allowed

- Patients with only extramedullary disease in the absence of bone marrow or
blood involvement are not eligible

- Philadelphia (Ph) chromosome-negative disease

- Patients with unknown Ph status by cytogenetics or FISH and unknown BCR/ABL
status by PCR are eligible for study registration, but must be removed from
study therapy if found to be Ph+ or BCR/ABL+ after study registration

- Refractory to a standard induction regimen that included vincristine and prednisone
or high-dose cytarabine or mitoxantrone OR relapsed after successful prior induction

- Any number of prior induction therapies or any number of remissions achieved are

- No M0 acute myeloid leukemia, mixed lineage leukemia, or L3 (Burkitt) leukemia

- No active CNS involvement by clinical evaluation

- Patients with a documented history of CNS involvement of ALL or with clinical
signs or symptoms consistent with CNS involvement of ALL must undergo a lumbar
puncture that is negative for CNS involvement of ALL

- Patients < 22 years of age must be willing to receive prophylactic intrathecal

- Must be registered on SWOG-9007 "Cytogenetic Studies in Leukemia Patients" (closed as
of 07/01/2010)


- Zubrod performance status 0-2

- Serum creatinine ≤ 1.0 mg/dL OR glomerular filtration rate > 60 mL/min

- AST and ALT ≤ 2.5 times upper limit of normal (ULN)

- Alkaline phosphatase ≤ 2.5 times ULN

- Bilirubin ≤ 1.5 times ULN

- Not pregnant or nursing

- Fertile patients must use effective contraception during and for ≥ 6 months after
completion of study treatment

- HIV-positive patients are eligible (at the discretion of the investigator) provided
the following criteria are met:

- No history of AIDS-defining conditions

- CD4 cell count > 350/mm³

- If on antiretroviral agents, must not include zidovudine or stavudine

- Willing to receive prophylaxis for pneumocystis jirovecii pneumonia during study
therapy (regardless of CD4 cell count) until the CD4 cell count is > 200/mm³
after completion of study treatment

- Prior malignancy (other than ALL) allowed provided it is in remission and there are
no plans to treat the malignancy at the time of study registration

- No uncontrolled systemic fungal, bacterial, viral, or other infection, defined as
exhibiting ongoing signs or symptoms related to the infection with no improvement
despite appropriate antibiotics or other treatment

- No neuropathy (cranial, motor or sensory) ≥ grade 2


- See Disease Characteristics

- Any number of prior therapies allowed

- More than 90 days since prior allogeneic bone marrow transplant (BMT)

- No concurrent immunosuppression therapy for the treatment of graft-vs-host
disease (GVHD)

- No acute GVHD ≥ grade 2, moderate or severe limited chronic GVHD, or extensive
chronic GVHD of any severity

- Prior autologous BMT allowed

- No concurrent immunosuppression therapy for the treatment of GVHD

- More than 14 days since prior chemotherapy, investigational agents, or major surgery
and recovered

- Maintenance therapy with steroids, vincristine, and/or anti-metabolite agents,
including but not limited to, mercaptopurine, thioguanine, and methotrexate

- Concurrent hydroxyurea to reduce WBC to a reasonable level (as deemed by the
treating physician) allowed

- No prior clofarabine or epratuzumab

- No other concurrent cytotoxic therapy or investigational therapy

- No concurrent alternative medications (e.g., herbal or botanical medications for
anticancer purposes)

- Concurrent participation on SWOG-S9910 "Leukemia Centralized Reference Laboratories
and Tissue Repositories, Ancillary" allowed (closed as of 07/01/2010)

Type of Study:


Study Design:

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Outcome Measure:

Complete remission (CR) rate (CR and incomplete CR)

Outcome Time Frame:

5 years

Safety Issue:


Principal Investigator

Anjali Advani, MD

Investigator Role:

Study Chair

Investigator Affiliation:

The Cleveland Clinic


United States: Federal Government

Study ID:




Start Date:

September 2010

Completion Date:

July 2017

Related Keywords:

  • Leukemia
  • B-cell adult acute lymphoblastic leukemia
  • L1 adult acute lymphoblastic leukemia
  • L2 adult acute lymphoblastic leukemia
  • recurrent adult acute lymphoblastic leukemia
  • Burkitt Lymphoma
  • Leukemia
  • Leukemia, Lymphoid
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma



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