Lessons from clinical trials in African Burkitt lymphoma. 2009

Ian Magrath
International Network for Cancer Treatment and Research, Brussels, Belgium. imagrath@inctr.be

OBJECTIVE The center of gravity of the AIDS epidemic has moved - in 2007, 67% of all persons living with HIV infection and 72% of all deaths from AIDS occurred in Africa. The present review focuses on the treatment of an AIDS-defining malignancy, Burkitt lymphoma, since the discovery of the tumor in 1958 to provide a backdrop to the increasing necessity of dealing with AIDS-associated Burkitt lymphoma in Africa. RESULTS In Africa, it appears that AIDS-associated Burkitt lymphoma is increasing, but although treatment outcome is presently poor, the demonstration that highly active antiretroviral therapy permits the same treatment results to those in AIDS-unassociated Burkitt lymphoma provides hope for the future. CONCLUSIONS In the 1960s, the extraordinary response of Burkitt lymphoma to chemotherapy provided considerable encouragement to pioneer oncologists. Within little more than a decade, the most active drugs, the value of combination chemotherapy, and the need for intrathecal treatment, as well as the risk of tumor lysis syndrome had been demonstrated, providing a platform on which further advances could be made in resource-rich countries. Since that time, little progress has been made in Africa, but recent collaborative projects have shown that improved treatment outcome can be achieved at low cost. The impact of the HIV epidemic on the epidemiology and treatment of African Burkitt lymphoma will receive increasing focus in the coming years.

UI MeSH Term Description Entries
D002051 Burkitt Lymphoma A form of undifferentiated malignant LYMPHOMA usually found in central Africa, but also reported in other parts of the world. It is commonly manifested as a large osteolytic lesion in the jaw or as an abdominal mass. B-cell antigens are expressed on the immature cells that make up the tumor in virtually all cases of Burkitt lymphoma. The Epstein-Barr virus (HERPESVIRUS 4, HUMAN) has been isolated from Burkitt lymphoma cases in Africa and it is implicated as the causative agent in these cases; however, most non-African cases are EBV-negative. African Lymphoma,Burkitt Cell Leukemia,Burkitt Tumor,Lymphoma, Burkitt,Burkitt Leukemia,Burkitt's Leukemia,Burkitt's Lymphoma,Burkitt's Tumor,Leukemia, Lymphoblastic, Burkitt-Type,Leukemia, Lymphocytic, L3,Lymphocytic Leukemia, L3,Burkitts Leukemia,Burkitts Lymphoma,Burkitts Tumor,L3 Lymphocytic Leukemia,L3 Lymphocytic Leukemias,Leukemia, Burkitt,Leukemia, Burkitt Cell,Leukemia, Burkitt's,Leukemia, L3 Lymphocytic,Lymphoma, African,Lymphoma, Burkitt's,Tumor, Burkitt,Tumor, Burkitt's
D002986 Clinical Trials as Topic Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries. Clinical Trial as Topic
D003131 Combined Modality Therapy The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used. Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000163 Acquired Immunodeficiency Syndrome An acquired defect of cellular immunity associated with infection by the human immunodeficiency virus (HIV), a CD4-positive T-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation (wasting) and dementia. These elements reflect criteria for AIDS as defined by the CDC in 1993. AIDS,Immunodeficiency Syndrome, Acquired,Immunologic Deficiency Syndrome, Acquired,Acquired Immune Deficiency Syndrome,Acquired Immuno-Deficiency Syndrome,Acquired Immuno Deficiency Syndrome,Acquired Immuno-Deficiency Syndromes,Acquired Immunodeficiency Syndromes,Immuno-Deficiency Syndrome, Acquired,Immuno-Deficiency Syndromes, Acquired,Immunodeficiency Syndromes, Acquired,Syndrome, Acquired Immuno-Deficiency,Syndrome, Acquired Immunodeficiency,Syndromes, Acquired Immuno-Deficiency,Syndromes, Acquired Immunodeficiency
D000349 Africa The continent south of EUROPE, east of the ATLANTIC OCEAN and west of the INDIAN OCEAN.
D000971 Antineoplastic Combined Chemotherapy Protocols The use of two or more chemicals simultaneously or sequentially in the drug therapy of neoplasms. The drugs need not be in the same dosage form. Anticancer Drug Combinations,Antineoplastic Agents, Combined,Antineoplastic Chemotherapy Protocols,Antineoplastic Drug Combinations,Cancer Chemotherapy Protocols,Chemotherapy Protocols, Antineoplastic,Drug Combinations, Antineoplastic,Antineoplastic Combined Chemotherapy Regimens,Combined Antineoplastic Agents,Agent, Combined Antineoplastic,Agents, Combined Antineoplastic,Anticancer Drug Combination,Antineoplastic Agent, Combined,Antineoplastic Chemotherapy Protocol,Antineoplastic Drug Combination,Cancer Chemotherapy Protocol,Chemotherapy Protocol, Antineoplastic,Chemotherapy Protocol, Cancer,Chemotherapy Protocols, Cancer,Combinations, Antineoplastic Drug,Combined Antineoplastic Agent,Drug Combination, Anticancer,Drug Combination, Antineoplastic,Drug Combinations, Anticancer,Protocol, Antineoplastic Chemotherapy,Protocol, Cancer Chemotherapy,Protocols, Antineoplastic Chemotherapy,Protocols, Cancer Chemotherapy
D015994 Incidence The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases in the population at a given time. Attack Rate,Cumulative Incidence,Incidence Proportion,Incidence Rate,Person-time Rate,Secondary Attack Rate,Attack Rate, Secondary,Attack Rates,Cumulative Incidences,Incidence Proportions,Incidence Rates,Incidence, Cumulative,Incidences,Person time Rate,Person-time Rates,Proportion, Incidence,Rate, Attack,Rate, Incidence,Rate, Person-time,Rate, Secondary Attack,Secondary Attack Rates
D016483 Lymphoma, AIDS-Related B-cell lymphoid tumors that occur in association with AIDS. Patients often present with an advanced stage of disease and highly malignant subtypes including BURKITT LYMPHOMA; IMMUNOBLASTIC LARGE-CELL LYMPHOMA; PRIMARY EFFUSION LYMPHOMA; and DIFFUSE, LARGE B-CELL, LYMPHOMA. The tumors are often disseminated in unusual extranodal sites and chromosomal abnormalities are frequently present. It is likely that polyclonal B-cell lymphoproliferation in AIDS is a complex result of EBV infection, HIV antigenic stimulation, and T-cell-dependent HIV activation. AIDS-Associated Lymphoma,AIDS-Related Lymphoma,HIV-Related Lymphoma,Lymphoma, HIV-Related,Lymphoma, AIDS-Associated,AIDS Associated Lymphoma,AIDS Related Lymphoma,AIDS-Associated Lymphomas,AIDS-Related Lymphomas,HIV Related Lymphoma,HIV-Related Lymphomas,Lymphoma, AIDS Associated,Lymphoma, AIDS Related,Lymphoma, HIV Related,Lymphomas, AIDS-Associated,Lymphomas, AIDS-Related,Lymphomas, HIV-Related
D023241 Antiretroviral Therapy, Highly Active Drug regimens, for patients with HIV INFECTIONS, that aggressively suppress HIV replication. The regimens usually involve administration of three or more different drugs including a protease inhibitor. Combination Antiretroviral Therapy,HAART,Highly Active Antiretroviral Therapy,Antiretroviral Therapies, Combination,Antiretroviral Therapy, Combination,Combination Antiretroviral Therapies,Therapies, Combination Antiretroviral,Therapy, Combination Antiretroviral

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