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The goal of this clinical research study is to learn if the combination of fludarabine, cyclophosphamide, alemtuzumab, and rituximab is effective in treating chronic lymphocytic leukemia in patients who have already been treated with chemotherapy.
Evaluate the therapeutic efficacy, including the complete remission (CR), nodular partial remission (NPR), and partial remission (PR) rates (overall response) of combined cyclophosphamide, fludarabine, alemtuzumab, and rituximab (CFAR) in previously treated patients with CLL.
- Assess the toxicity profile of CFAR in previously treated patients with CLL.
- Monitor for infection and determine incidence and etiology of infection including cytomegalovirus in patients treated with CFAR.
- Evaluate molecular remission by polymerase chain reaction (PCR) for the clonal immunoglobulin heavy chain variable gene in responding patients treated with CFAR.
- Assess immune parameters, including pretreatment, during treatment, and post-treatment blood T-cell counts and subset distribution and serum immunoglobulin levels in patients treated with CFAR.
Fludarabine is a chemotherapy drug that is approved for the treatment of CLL. Cyclophosphamide is also a chemotherapy drug that is commonly used in the treatment of CLL. Rituximab and alemtuzumab are special proteins that specifically target and attach to proteins on leukemia cells. These targeted proteins may also be present on normal blood cells. When these drugs bind to the proteins on leukemia cells, they may help to stop or slow the growth of the disease. The combination of fludarabine, cyclophosphamide and rituximab has been used in the treatment of CLL. The purpose of this study is to determine if there is added benefit with the addition of alemtuzumab to this combination.
Before treatment starts, you will have a complete physical exam, including blood tests (about 3 tablespoons). You may have either a chest x-ray or a CT scan if your doctor feel this is necessary. If you have not had a bone marrow sample collected in the past 4 months, you will have a bone marrow sample collected at this time. To collect a bone marrow sample, an area of the hip or chest bone is numbed with anaesthetic and a small amount of bone marrow is withdrawn through a large needle. Women who are able to have children must have a negative blood pregnancy test.
During the study, you will have up to 6 "cycles" of treatment. A cycle is made up of treatment with the study drugs for 5 days in a row, then around 31/2 weeks (23 days) of no treatment with the study drugs. On Days 1, 3, and 5 of each cycle you will receive alemtuzumab through a needle in a vein. On Day 2 of each cycle you will receive rituximab through a needle in a vein. Cyclophosphamide and fludarabine will be given separately on Days 3, 4, and 5 of each cycle through a needle in a vein. In addition to the study drugs, you may also be given fluids by vein. The combination treatment will be repeated every 4 weeks (one cycle) for a total of up to 6 cycles. This treatment will be given on an outpatient basis. The injections for each daily treatment visit should take less than 6 hours.
You will receive acetaminophen (Tylenol) by mouth and diphenhydramine hydrochloride (Benadryl) by mouth or vein 30 - 60 minutes before each dose of rituximab and alemtuzumab. You will also receive hydrocortisone (a steroid) by vein before each dose of alemtuzumab. These drugs will be used to help decrease side effects. If side effects occur during a treatment, the doses of the drugs may be adjusted (up or down) until the symptoms are gone. Also, if you experience side effects during treatment, you must stay in the clinic for 2 hours after the drug is given to be observed.
If you begin to experience side effects due to treatment, the dose(s) of the drug(s) may be lowered or the treatment may be temporarily stopped until the symptoms are gone.
During the treatment and for two months after completion of treatment you will need to take prophylactic antibiotics to prevent you from developing infection. Trimethoprim/sulfamethoxazole (Bactrim DS) is a sulfa-drug and you will be given this to prevent a type of pneumonia called PCP pneumonia. If you are allergic to sulfa drugs, an equivalent antibiotic will be given. You will take Valtrex to prevent virus reactivation including herpes. If you are allergic to Valtrex, an equivalent antibiotic will be given. You may receive an additional antibiotic to suppress another virus, cytomegalovirus called Valcyte. You may also take allopurinol for the first week of the first course of treatment. This will help prevent kidney damage from rapid destruction of your leukemia cells.
During the first cycle of treatment, you will have blood drawn (about 2 tablespoons) for blood tests once a week. Then, these blood tests will be repeated before the start of each additional cycle (every 4 weeks).
After 3 cycles of treatment, you will have a physical exam and blood tests (about 2 tablespoons). You may also have either an x-ray or a CT scan. You will have another bone marrow sample collected. These tests will be used to see if the disease is responding to treatment. If it is found that the disease is not responding to treatment after the first 3 cycles of therapy, you will be taken off the study and your doctor will discuss other treatment options with you. If it is found that the disease is responding to treatment, another 3 cycles (12 weeks) of treatment will be given (6 cycles total). During these additional 3 cycles of therapy, you will have blood drawn (about 2 tablespoons) once a week for routine blood tests.
After 6 cycles of treatment, you will have a physical exam and have around 2 tablespoons of blood drawn for routine blood tests.
Around 3-6 months after you receive your last treatment cycle, you will have a physical exam and blood tests (about 2 tablespoons). After that, you will have a physical examination and blood tests (about 2 tablespoons) every 6 months for the next 2 years. If your disease returns or if you start on more treatment, you will not need to return for these visits. However, you should inform the study doctor/staff that you are receiving other treatment.
If at any time during the study the disease gets worse or you experience any intolerable side effects, you will be taken off the study and your doctor will discuss other treatment options with you.
This is an investigational study. All of the drugs used in the study are FDA approved and commercially available. As many as 80 patients will take part in the study. All will be enrolled at M. D. Anderson.
Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Chronic Lymphocytic Leukemia
Fludarabine, Cyclophosphamide, Alemtuzumab, Rituximab
UT MD Anderson Cancer Center
Active, not recruiting
M.D. Anderson Cancer Center
Published on BioPortfolio: 2014-08-27T03:15:23-0400
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A chronic leukemia characterized by abnormal B-lymphocytes and often generalized lymphadenopathy. In patients presenting predominately with blood and bone marrow involvement it is called chronic lymphocytic leukemia (CLL); in those predominately with enlarged lymph nodes it is called small lymphocytic lymphoma. These terms represent spectrums of the same disease.
A chronic leukemia characterized by a large number of circulating prolymphocytes. It can arise spontaneously or as a consequence of transformation of CHRONIC LYMPHOCYTIC LEUKEMIA.
A lymphoid leukemia characterized by a profound LYMPHOCYTOSIS with or without LYMPHADENOPATHY, hepatosplenomegaly, frequently rapid progression, and short survival. It was formerly called T-cell chronic lymphocytic leukemia.
A pathologic change in leukemia in which leukemic cells permeate various organs at any stage of the disease. All types of leukemia show various degrees of infiltration, depending upon the type of leukemia. The degree of infiltration may vary from site to site. The liver and spleen are common sites of infiltration, the greatest appearing in myelocytic leukemia, but infiltration is seen also in the granulocytic and lymphocytic types. The kidney is also a common site and of the gastrointestinal system, the stomach and ileum are commonly involved. In lymphocytic leukemia the skin is often infiltrated. The central nervous system too is a common site.
Precursor of an alkylating nitrogen mustard antineoplastic and immunosuppressive agent that must be activated in the LIVER to form the active aldophosphamide. It has been used in the treatment of LYMPHOMA and LEUKEMIA. Its side effect, ALOPECIA, has been used for defleecing sheep. Cyclophosphamide may also cause sterility, birth defects, mutations, and cancer.