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A Phase I,Multicenter, Dose Escalation Study of CAT-8015 in Patients With Chronic Leukemia

This study has suspended participant recruitment.
(On hold due to lack of CTM supply)
Cambridge Antibody Technology
Information provided by (Responsible Party):
MedImmune LLC Identifier:
First received: December 21, 2007
Last updated: January 3, 2012
Last verified: January 2012
To demonstrate the safety of CAT-8015 at MTD dose.

Condition Intervention Phase
Leukemia, Lymphoma
Drug: CAT-8015
Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I, Multicenter, Dose-Escalation Study of CAT-8015 in Patients With Relapsed or Refactory Chronic Lymphocytic Leukemia (CLL) Prolymphocytic Leukemia (PLL) or, Small Lymphocytic Leukemia (SLL)

Resource links provided by NLM:

Further study details as provided by MedImmune LLC:

Primary Outcome Measures:
  • Assess safety, efficacy,characterize toxicity profile, study pharmacology, observe anti-tumor activity [ Time Frame: Day 28 ]

Secondary Outcome Measures:
  • Assess immunogenicity and potential biomarkers for response or toxicity for phase 2 dose [ Time Frame: Days 0-7; 0-14 ]

Enrollment: 11
Study Start Date: March 2007
Estimated Study Completion Date: January 2012
Primary Completion Date: January 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
Drug: CAT-8015
Maximum Tolerated Dose

Detailed Description:
To demonstrate the safety of CAT-8015 at the MTD, defined as the highest dose that can be safely administered to patients, and to establish a recommended Phase 2 dose.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Confirmed diagnosis of B-Cell Leukemia (CLL, PLL, or SLL)
  • Measurable Disease
  • Disease characteristics: Patients with chronic lymphocytic leukemia (CLL) or Small Lymphocytic Leukemia (SLL) are eligible if they have failed 2 or more prior courses of standard chemo and/or biologic therapy (e.g. Rituxan)_ and prolymphocytic leukemia (PLL) will be eligible if they have failed at least one prior standard chemotherapeutic regimen. Medical indications for treatment include progressive disease-related symptoms, progressive cytopenias due to marrow involvement, progressive or painful splenomegaly or adenopathy, rapidly increasing lymphocytosis, autoimmune hemolytic anemia or thrombocytopenia and increased frequency of infections.
  • ECOG performance status of 0-2
  • Patients with other cancers who meet eligibility criteria and have had less than 5 yrs. of disease-free survival will be considered on a case-by-case basis
  • Life expectancy of greater than 6 mos., as assessed by the principal investigator
  • Must be able to understand and sign the informed consent
  • Must be at least 18 years old
  • Female and Male patients agree to use an approved method of contraception during the study

Exclusion Criteria:

  • History of allogeneic bone marrow transplant.
  • Documented and ongoing central nervous system involvement with their malignant disease (history of CNS involvement is not an exclusion criterion.)
  • Pregnant or breast-feeding females
  • Patients who plasma contains either a significant level of antibody to CAT-8015 as measured by ELISA, or antibody that neutralizes the binding of CAT-8015 to CD22 as measured by a competition ELISA.
  • HIV positive serology (due to increased risk of severe infection and unknown interaction of CAT-8015 with antiretroviral drugs)
  • Hepatitis B surface antigen positive
  • Uncontrolled, symptomatic, intercurrent illness including but not limited to: infections requiring systemic antibiotics, congestive heart failure, unstable angina pectoris, cardiac arrhythmia, psychiatric illness, or social situations that would limit compliance with study requirements.
  • Hepatic function:Serum transaminases (either ALT or AST) or direct bilirubin greater than or equal to Grade 2, unless bilirubin is due to Gilbert's disease
  • Renal function: Serum creatinine clearance is less than or equal to 60 mL/min as estimated by Cockcroft-Gault formula

Hematologic function:

  • The ANC less than 1000/cmm, or platelet count less than 50,000/cmm, if these cytopenias are not judged by the investigator to be due to underlying disease (i.e., potentially reversible with anti-neoplastic therapy).
  • A patient will not be excluded because of pancytopenia greater than or equal to Grade 3, or erythropoietin dependence, if it is due to disease, based on the results of bone marrow studies.
  • Baseline coagulopathy greater than or equal to grade 3 unless due to anticoagulant therapy

Pulmonary function:

  • Patients with less than 50% of predicted forced expiratory volume (FEV-1) or less than 50% of predicted diffusing capacity for carbon monoxide (DLCO) corrected for hemoglobin concentration and alveolar volume. Note: Patients with no prior history of pulmonary illness are not required to have PFTs. FEV1 will be assessed after bronchodilator therapy.

Recent prior therapy:

  • Cytotoxic chemotherapy, corticosteroids (except stable doses of prednisone), whole body electron beam radiation therapy, hormonal, biologic or other standard or any investigational therapy of the malignancy for 3 three wks. prior to entry into the trial.
  • Less than or equal to 1 mos. prior monoclonal antibody therapy (i.e. rituximab)
  • Patients who are receiving or have received radiation therapy less than 3 weeks prior to study entry will not be excluded providing the volume of the bone marrow treated is less than 10% and also the patient has measureable disease outside the radiation port.
  • Any history of prior pseudomonas - exotoxin immunotoxin administrator
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00587457

United States, California
Tower Hematology Oncology Medical Group
Beverly Hills, California, United States, 90211-1850
United States, Indiana
Indiana Univ. Cancer Center
Indianapolis, Indiana, United States, 46202
Research Site
Indianapolis, Indiana, United States
United States, Maryland
Bethesda, Maryland, United States, 20892
Klinika Hermatologii Uniwersytetu
Lodz, Poland, 93-510
Research Site
Lodz, Poland
Sponsors and Collaborators
MedImmune LLC
Cambridge Antibody Technology
Study Director: Ramy Ibrahim, M.D. MedImmune LLC
  More Information

Responsible Party: MedImmune LLC Identifier: NCT00587457     History of Changes
Other Study ID Numbers: CAT-8015-1002 
Study First Received: December 21, 2007
Last Updated: January 3, 2012

Additional relevant MeSH terms:
Neoplasms by Histologic Type
Neoplasms processed this record on February 24, 2017