Phase 1 Trial of Siplizumab and Dose-Adjusted EPOCH-Rituximab in T- and NK-Cell Lymphomas
Studies conducted at the National Cancer Institute suggest that certain chemotherapy drugs may be more effective if given by continuous infusion into the vein rather than by the standard method of rapid intravenous injection. One such combination of six chemotherapy drugs, known as EPOCH-R, has had a high degree of effectiveness in people with certain kinds of cancer. Recent evidence also indicates that the effects of chemotherapy may be improved by combining the treatment with monoclonal antibodies, which are purified proteins that are specially made to attach to foreign substances such as cancer cells. This protocol is specifically for adults with the types of cancer known as T-cell and NK-cell lymphomas, who have never received chemotherapy previously. The additional monoclonal antibody in the study, called siplizumab, has been manufactured to attach to the CD2 protein contained in these types of tumors.
Study volunteers will need to undergo an initial period of evaluation that may take up to 3 weeks and may be done on an outpatient basis. Evaluation may include some or all of the following tests: blood and urine tests, tests of lung and heart function, lumbar punctures to take samples of cerebrospinal fluid, magnetic resonance imaging (MRI) or computerized tomography (CT) scans, full-body positron emission tomography (PET) scans, bone marrow biopsies, and biopsies of suspected tumor areas.
During the study, patients will receive EPOCH-R chemotherapy, which includes the following drugs: etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin, and rituximab. The additional drug, siplizumab, will be given by IV infusion on the first day of treatment over several hours. When the siplizumab IV infusion is complete, the drugs doxorubicin, etoposide, and vincristine will each be given by continuous IV infusion over the next 4 days (that is, continuously for a total of 96 hours). When this infusion is completed, the drugs rituximab and cyclophosphamide will be given by IV infusion over several hours on Day 5. Prednisone will be given by mouth twice each day for 5 days. Patients may be given other drugs to treat the side effects of chemotherapy and to prevent possible infections.
The siplizumab-EPOCH-R therapy will be repeated every 21 days, which is known as a cycle of therapy, for a total of 6 cycles. Following the fourth and sixth treatment cycles (approximately weeks 12 and 18) of siplizumab-EPOCH-R, study researchers will perform blood tests and CT/MRI scans on all patients to assess their response to the treatment.
T-Cell Peripheral Lymphoma
Gamma Delta Hepatosplenic T-Cell Lymphoma
Subcutaneous Panniculitis-Like T-Cell Lymphoma
NK T-Cell Lymphoma
Drug: Siplizumab (Medi-507)
|Study Design:||Allocation: Non-Randomized
Endpoint Classification: Safety Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Phase 1 Trial of Siplizumab and Dose-Adjusted EPOCH-Rituximab (DA-EPOCH-R) in T and NK-Cell Lymphomas|
- Determine the toxicity of siplizumab and DA-EPOCH-R in chemotherapy na ve CD2-expressing T and NK lymphoid malignancies.Determine the maximum tolerated dose of siplizumab administered in combination with DA-EPOCH-R.
- Determine anti-tumor activity of siplizumab-EPOCH-R.Determine the time course of B, T, and NK dell depletion and recovery.
|Study Start Date:||January 2009|
Drug: Siplizumab (Medi-507)
The clinical outcome for patients with T-cell non-Hodgkin's lymphoma is significantly inferior to the outcome of patients with B-cell non-Hodgkin's lymphoma. In most reports less than 20% of patients with T cell lymphoid malignancies remain free of disease at 5 years.
The combination of alemtuzumab and EPOCH chemotherapy was evaluated in patients with chemotherapy naive aggressive T and NK cell lymphoid malignancy. Dose-limiting bone marrow toxicity prevented escalation of the alemtuzumab dose.
Siplizumab is a humanized monoclonal antibody directed at CD2 that demonstrated activity in the treatment of relapsed/refractory T cell lymphoma, suggesting further development by combining with chemotherapy for untreated patients. Siplizumab caused EBV lymphoproliferative disease in patients treated with a weekly schedule of administration.
Rituximab prevents the development of EBV lymphoproliferative disease in the allogeneic transplant setting and may be active in preventing EBV-related B cell lymphoma in other settings.
Determine the toxicity of siplizumab and dose-adjusted EPOCH rituximab chemotherapy in chemotherapy naive CD2-expressing T and NK lymphoid malignancies.
Determine the maximum tolerated dose of siplizumab administered in combination with dose-adjusted EPOCH rituximab chemotherapy.
CD2-expressing lymphoid malignancy.
Patients with chemotherapy naive aggressive T & NK lymphomas. Patients with alkpositive anaplastic large cell lymphoma and patients with T cell precursor disease are not eligible.
Four dose levels of siplizumab will be evaluated to determine the toxicity profile and in a preliminary fashion and its activity in combination with dose-adjusted EPOCH with rituximab.
Four dose levels of siplizumab will be explored, in cohorts of three to six patients each. Patients will receive 3.4, 4.8, 8.5, or 15 mg/kg of siplizumab on day 1 of therapy, followed by dose-adjusted EPOCH-rituximab chemotherapy days 1-5 every 3 weeks for a total of 6 cycles.
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike|
|Bethesda, Maryland, United States, 20892|
|Principal Investigator:||Wyndham H Wilson, M.D.||National Cancer Institute (NCI)|