Active clinical trials for "Leukemia"

RATIONALE: Studying samples of bone marrow and blood from patients with cancer in the laboratory may help doctors predict how well patients will respond to treatment. PURPOSE: This research study studies biomarkers in samples from patients with newly diagnosed acute myeloid leukemia treated with cytarabine-based chemotherapy.

RATIONALE: Studying samples of blood and tissue from patients with cancer treated with cytarabine in the laboratory may help doctors learn more about the effects of cytarabine on cells. It may also help doctors understand how well patients respond to treatment. PURPOSE: This research trial studies biomarkers associated with response to cytarabine in samples from older patients with acute myeloid leukemia.

RATIONALE: Studying cell samples from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer PURPOSE: This research study is studying drug biomarkers in cell samples from patients with acute myeloid leukemia.

This research study is studying lestaurtinib with or with chemotherapy in samples from young patients with leukemia. Studying the effects of lestaurtinib with or without chemotherapy in cell samples from patients with cancer in the laboratory may help doctors learn more about the effects of this treatment on cancer cells. It may also help doctors identify biomarkers related to cancer.

RATIONALE: Studying samples of blood or tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. PURPOSE: This research study is studying biomarkers in DNA samples from patients with newly diagnosed high-risk acute lymphoblastic leukemia.

Background: Chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), and mantle cell lymphoma (MCL) are types of cancers in which there are too many abnormal lymphocytes (a type of white blood cell). Monoclonal B-cell lymphocytosis (MBL) is a condition in which the individual has a larger than normal number of lymphocytes. Individuals with CLL, SLL, MBL, and MCL may survive for many years without the need for treatment, but there is an apparent correlation between cell birth rates and disease activity. By studying the birth and death rates of lymphocytes, researchers hope to identify individuals who are at risk for worsening disease. Heavy water is similar in structure to regular water, but it has two deuterium atoms instead of two hydrogen atoms. Deuterium has one more neutron than hydrogen, which is what makes heavy water heavy. Heavy water is not radioactive, looks and tastes like regular water, and has no known harmful effects at research-level doses. When a small amount of heavy water is consumed daily, newly produced blood cells are labeled (tagged), which allows researchers to track cell growth and to measure the birth and death rates of CLL, SLL, MBL, MCL or normal lymphocytes. Objectives: - To study the birth and death rates of lymphocytes from individuals with MBL, CLL/SLL, and MCL, compared with lymphocytes from healthy volunteers. Eligibility: Individuals at least 18 years of age who have been diagnosed with MBL, CLL, SLL, or MCL, but who have not been taking certain agents (Viagra, Levitra, Cialis, or other PDE-inhibitors, prednisone, cyclosporin-A, rapamycin, or other immunosuppressive agents, more than 2 cups of green tea daily, or Celebrex) for 4 weeks prior to enrollment in the study. Healthy volunteers at least 18 years of age, but who have not been taking certain agents (Viagra, Levitra, Cialis, or other PDE-inhibitors, prednisone, cyclosporin-A, rapamycin, or other immunosuppressive agents, more than 2 cups of green tea daily, or Celebrex)for 4 weeks prior to enrollment in the study. Design: Participants will be screened with a medical history, physical examination, and initial blood tests. Other tests may be administered to the individuals with cancer, as required by the study researchers. All participants will drink regular doses of heavy water daily for a total of 4 weeks (labeling period). There is an optional 6-month follow-up or wash-out period during which no additional heavy water will be consumed. Blood samples will be collected weekly during the labeling period, and a bone marrow biopsy will be obtained where possible. Individuals with cancer may also have a lymph node biopsy during this part of the study. Additional blood samples may be collected during the optional wash-out phase of the study to determine the rate at which cancer cells disappear. Treatment is not provided as part of this protocol.

RATIONALE: Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about biomarkers related to cancer. PURPOSE: This research study is studying biomarkers in tissue samples from young patients with acute myeloid leukemia.

The GIMEMA CML Working Party promotes an observational (retrospective and perspective) study of Imatinib-resistant or intolerant CML patients treated with Nilotinib in Italy. Enrollment will include all patients who started Nilotinib between January 2005 and December 2012. Patients will be followed for 4 years since treatment start. After this time, survival data, disease status and treatment will be recorded at 6-months-interval. This study will help the definition of guidelines for a proper management of Nilotinib in any-phase CML patients.

RATIONALE: A screening test, such as My Profile Pediatric Assay, may help doctors predict a patient's risk of relapse and plan better treatment for acute myeloid leukemia. PURPOSE: This clinical trial is studying using the My Profile Pediatric Assay to see how well it works in predicting risk of relapse in bone marrow cell samples from younger patients with acute myeloid leukemia.

A minority of patients with adult acute lymphoblastic leukemia (ALL) relapse are rescued. The aim of this population-based study was to assess the results of reinduction treatment and allogeneic stem cell transplantation (SCT) in second complete remission (CR) in Sweden 2003-2007.