- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00457860
Safety Study of CAT-8015 Immunotoxin in Patients With CLL, PLL or SLL With Advance Disease
A Phase 1, Multicenter, Dose Escalation Study of CAT-8015 in Patients With Relapse or Refractory Chronic Lymphocytic Leukemia (CLL), Prolymphocytic Leukemia (PLL), or Small Lymphocytic Lymphoma (SLL)
RATIONALE: The CAT-8015 immunotoxin can bind tumor cells and kill them without harming normal cells. This may be an effective treatment for chronic lymphocytic leukemia (CLL), prolymphocytic leukemia (PLL), or small lymphocytic lymphoma (SLL that has not responded to chemotherapy, surgery or radiation therapy.
PURPOSE: Phase I dose escalation study to determine the maximum tolerated dose of CAT-8015 immunotoxin in treating patients who have chronic lymphocytic leukemia, prolymphocytic leukemia or small lymphocytic lymphoma that has not responded to treatment
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
OUTLINE: Patients receive CAT-8015 IV over 30 minutes on days 1, 3, and 5 followed by rest. Treatment repeats every 4 weeks for up to a total of 10 courses in the absence of dose limiting toxicity, complete response or disease progression. Patients are followed at 1, 3, 6,12,15,18, 21, 24 months following the start of the last treatment cycle.
Cohorts of 3-6 patients each will receive escalating doses of recombinant CAT-8015 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose proceeding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity. Once the MTD is determined, between16 to 25 new patients will be added to the MTD cohort depending on how well the CAT-8015 is tolerated.
Study Type
Enrollment
Phase
- Phase 1
Contacts and Locations
Study Locations
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Lodz, Poland
- Not yet recruiting
- Klinika Hemtologii Uniwersytetu Medycznego (Medical University of Lodz)
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Contact:
- Krzysztof Jamoziak, MD
- Phone Number: 00 48 42 689 5191
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California
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Beverly Hills, California, United States, 90211
- Recruiting
- Tower Hematology Oncology Medical Group
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Indiana
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Indianapolis, Indiana, United States, 46202
- Not yet recruiting
- Indiana University Cancer Center
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Contact:
- Mary Cangany, RN, CCRP
- Phone Number: 317-278-4694
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Principal Investigator:
- Larry Cripe, MD
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Maryland
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Bethesda, Maryland, United States, 20892
- Recruiting
- Warren Grant Megnuson Clinical Center - NCI Clinical Trials Referral Office
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
INCLUSION CRITERIA:
DISEASE CHARACTERISTICS:
- Confirmed diagnosis of B-cell leukemia (CLL, PLL or SLL)
- Measurable disease
- Patients with chronic lymphocytic leukemia (CLL), or small lymphocytic lymphoma (SLL) are eligible if they have failed 2 or more prior courses of standard chemotherapy and/or biologic therapy (e.g. Rituxan) and if treatment for progressive disease is medically indicated. Patients with 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.
PATIENT CHARACTERISTICS:
Performance status
- ECOG 0-2
Life expectancy
- Life expectancy of greater than 6 months, as assessed by the principal investigator
Other
- Patients with other cancers who meet eligibility criteria and have had less than 5 years of disease-free survival will be considered on a case-by-case basis
- Ability to understand and sign informed consent
- Female and male patients agree to use an approved method of contraception during the study
EXCLUSION CRITERIA:
- Documented and ongoing central nervous system involvement with their malignant disease (history of CNS involvement is not an exclusion criterion)
- History of bone marrow transplant
- Pregnant or breast-feeding females
- Patients whose 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:
- ≥ Grade 2, unless bilirun is due to Gilbert's disease
Renal function: serum creatinine clearance ≤60mL/min as estimated by Cockroft-Gault formula
Hematologic function:
- The ANC <1000/cmm, or platelet count <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)
- Baseline coagulopathy > grade 3 unless due to anticoagulant therapy
- A patient will not be excluded because of pancytopenia ≥ Grade 3, or erythropoietin dependence, if it is due to disease, based on the results of bone marrow studies
Pulmonary function:
- Patients with < 50% of predicted forced expiratory volume (FEV1) or <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 following bronchodilator therapy.
Recent prior therapy:
- Cytotoxic chemotherapy, corticosteriods (except stable doses of prednisone), whole body electron beam radiation therapy, hormonal, biologic or other systemic therapy or investigational therapy of the malignancy for 3 weeks prior to entry into the trial
- Less than or equal to < 3 months prior monoclonal antibody therapy (i.e. rituximab)
- Patients who have received or are receiving radiation therapy less than 3 weeks prior to study entry will be not be excluded providing the volume of bone marrow treated is less than 10% and also the patient has measurable disease outside the radiation port
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NON_RANDOMIZED
- Interventional Model: SINGLE_GROUP
- Masking: NONE
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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Estimate the maximum dose that can be safely administered to a patient
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Characterize the toxicity profile of CAT-8015
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Study the clinical pharmacology of CAT-8015
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Observe anti-tumor activity, if any
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Secondary Outcome Measures
Outcome Measure |
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To assess the potential of CAT-8015 to induce antibodies
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To Investigate the potential of biomarkers to predict any therapeutic or toxic response
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CAT-8015-1002
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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