Active clinical trials for "Leukemia"

RATIONALE: Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to bone tissue death. PURPOSE: This laboratory study is looking at risk factors for bone tissue death in young patients with acute lymphoblastic leukemia treated on clinical trial CCG-1882.

RATIONALE: Studying samples of blood and bone marrow in the laboratory from patients with cancer may help doctors learn more about changes that occur in DNA and identify genes related to cancer. It may also help doctors diagnose cancer and predict how patients will respond to treatment. PURPOSE: This research study is identifying cancer-related genes in blood and/or bone marrow samples from patients with acute myeloid leukemia.

RATIONALE: Gathering information about how often methemoglobinemia occurs in young patients receiving dapsone for hematologic cancer or aplastic anemia may help doctors learn more about the disease and plan the best treatment. PURPOSE: This research study is looking at methemoglobinemia in young patients with hematologic cancer or aplastic anemia treated with dapsone.

The aim of this study was to investigate the occurrences of respiratory symptoms risk factors and abnormalities in lung function in young children (3-6 years old) with hemato-oncologic diseases at presentation (before treatment) and up to 3 years follow-up (study period).

RATIONALE: Studying samples of 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. It may also help doctors predict how well patients will respond to treatment. PURPOSE: This research study is looking at biomarkers in cell samples from young patients with acute myeloid leukemia.

It is a phase 4 study, not randomised and multicentric. Within 2 months after the diagnosis, the patients daily receive imatinib by oral way during at least 1 year (260mg/m² once a day), i.e. until the cytogenetic analysis. Beyond 1 year of treatment, if a haematological relapse or a loss of the cytogenetic response is observed, the nature of the treatment suggested to the patient is left with the appreciation of the investigator. Later on, discontinuation of imatinib is discussed if a molecular remission (negative RT-PCR) is obtained and maintained for at least 2 years.

RATIONALE: Collecting and storing samples of blood and bone marrow from patients with cancer to study in the laboratory may help doctors learn more about diagnosing cancer and how well patients will respond to treatment. PURPOSE: The purpose of this study is to collect and store blood and bone marrow samples from patients with hematologic cancer to be tested in the laboratory.

RATIONALE: Gathering information about how often metabolic syndrome occurs in young survivors of childhood cancer may help doctors learn more about the disease. PURPOSE: This clinical trial is studying metabolic syndrome in survivors of childhood cancer and in their healthy sisters and brothers.

This clinical trial is looking at brain function in young patients receiving methotrexate for acute lymphoblastic leukemia. Learning about the long-term effects of methotrexate on brain function may help doctors plan cancer treatment.

RATIONALE: Cancer therapies may affect the ability of a child's brain and central nervous system to function normally. Learning to identify which patients will develop complications may improve the ability of doctors to plan cancer treatment and improve patient quality of life. PURPOSE: This clinical trial is studying neurobehavioral changes in children who have received steroid therapy or intrathecal therapy for acute lymphoblastic leukemia.