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About
Phase I/II trial to study the effectiveness of combining yttrium Y 90 ibritumomab tiuxetan with rituximab in treating patients who have localized or recurrent lymphoproliferative disorder after an organ transplant. Monoclonal antibodies such as yttrium Y 90 ibritumomab tiuxetan and rituximab can locate cancer cells and either kill them or deliver radioactive cancer-killing substances to them without harming normal cells
Full description
OBJECTIVES:
I. Determine the safety and tolerability of yttrium Y 90 ibritumomab tiuxetan (IDEC-Y2B8) in patients with post-transplant lymphoproliferative disorder.
II. Determine the safety and toxicity profile of IDEC-Y2B8 and rituximab in these patients.
III. Correlate the Epstein-Barr virus viral load with response and relapse in patients treated with this regimen.
OUTLINE: This is a multicenter, dose-escalation study of yttrium Y 90 ibritumomab tiuxetan (IDEC-Y2B8).
Phase I: Patients receive rituximab IV and indium In 111 ibritumomab tiuxetan IV over 10 minutes on day 1. Patients undergo 2 (or 3 if needed) imaging scans between days 1-6. In the absence of altered biodistribution, patients receive rituximab IV followed within 4 hours by IDEC-Y2B8 IV over 10 minutes on day 8.Cohorts of 6 patients receive escalating doses of IDEC-Y2B8 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose at which no more than 1 of 6 patients experience dose-limiting toxicity.
Phase II: Patients receive treatment as in phase I at the MTD of IDEC-Y2B8. Patients are followed monthly for 3 months, every 3 months for 2 years, and then every 6 months for 2 years.
Enrollment
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Inclusion and exclusion criteria
Inclusion Criteria:
Histologically confirmed post-transplant lymphoproliferative disorder (PTLD) of 1 of the following stages:
The following histologies* are eligible:
Must not have completely responded during OR progressed after prior rituximab with or without chemotherapy
Measurable disease
Must have less than 25% bone marrow involvement with lymphoma
Prior solid organ transplantation required
Evaluation of malignant cells for Epstein-Barr virus (EBV) required
No pleural effusion
No CNS lymphoma, including leptomeningeal disease
No pulmonary involvement by NHL in patients with prior lung transplantation
No HIV or AIDS-related lymphoma
No hypocellular bone marrow (i.e., less than 15% cellularity)
No marked reduction in bone marrow precursors of one or more cell lines (i.e., granulocytic, megakaryocytic, or erythroid)
Performance status - Karnofsky 50-100%
At least 3 months
Absolute neutrophil count at least 1,500/mm^3
Platelet count at least 150,000/mm^3
Bilirubin no greater than 2.5 mg/dL
Creatinine no greater than 2.5 mg/dL
Not pregnant or nursing
Negative pregnancy test
Fertile patients must use effective contraception during and for 6 months after study participation
HIV negative
No serious nonmalignant disease or infection that would compromise study objectives
No presence of antimurine antibody reactivity
No other concurrent active malignancy requiring therapy
More than 2 weeks since prior filgrastim (G-CSF) or sargramostim (GM-CSF)
More than 6 weeks since prior rituximab
No prior allogeneic bone marrow or hematopoietic stem cell transplantation
No prior radioimmunotherapy for NHL
More than 4 weeks since prior chemotherapy
See Biologic therapy
No prior radiotherapy to more than 25% of active bone marrow (involved field or regional)
More than 4 weeks since prior major surgery except diagnostic surgery
No other concurrent anticancer therapy
Primary purpose
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Interventional model
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28 participants in 1 patient group
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Data sourced from clinicaltrials.gov
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