Immunotoxin Therapy in Treating Patients With Hairy Cell Leukemia
- Conditions
- Leukemia
- Registration Number
- NCT00021983
- Lead Sponsor
- National Cancer Institute (NCI)
- Brief Summary
RATIONALE: An immunotoxin can locate cancer cells and kill them without harming normal cells. This may be an effective treatment for hairy cell leukemia.
PURPOSE: Phase I trial to study the effectiveness of BL22 immunotoxin in treating patients who have refractory or recurrent hairy cell leukemia.
- Detailed Description
OBJECTIVES:
* Assess the toxicity and therapeutic efficacy of recombinant BL22 immunotoxin in patients with refractory or recurrent CD22+ hairy cell leukemia.
* Define the pharmacokinetics of this drug, including the terminal elimination serum half-life area under the curve and volume of distribution, in these patients.
* Evaluate the immunogenicity of this drug in these patients.
* Determine the effect of this drug on various components of the circulating cellular immune system in these patients.
OUTLINE: This is a dose-escalation study.
Patients receive recombinant BL22 immunotoxin IV over 30 minutes on days 1, 3, and 5. Treatment repeats at least every 42 days for up to 4 courses in the absence of disease progression and sufficient neutralizing antibodies.
Cohorts of 3-6 patients receive escalating doses of recombinant BL22 immunotoxin until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose at which no more than 1 of 6 patients experiences dose-limiting toxicity.
PROJECTED ACCRUAL: A maximum of 46 patients will be accrued for this study within 3 years.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- Not specified
Not provided
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Warren Grant Magnuson Clinical Center - NCI Clinical Studies Support
🇺🇸Bethesda, Maryland, United States