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Highly active antiretroviral therapy is associated with improved survival among patients with AIDS-related primary central nervous system non-Hodgkin's lymphoma.

Highly active retroviral therapy (HAART) has been in widespread use in the United States since 1996. We sought to determine how the use of HAART influenced survival among patients with acquired immunodeficiency syndrome (AIDS) and primary central nervous system (CNS) non-Hodgkin's lymphoma (NHL). We used the population-based San Diego and Orange County cancer registry to identify 94 patients with both AIDS and CNS NHL diagnosed 1994-1999, of whom 31 were diagnosed 1996-1999. We performed Kaplan-Meier analyses to compare survival between patients who received HAART at NHL diagnosis or thereafter versus untreated patients and Cox proportional hazard models for adjusted survival. Among the patients diagnosed with NHL in 1996-1999, seven (23%) were taking HAART at the time of NHL diagnosis. Median survival was eight months for those who received HAART at the time of lymphoma diagnosis or after, versus one month for untreated patients. HAART, radiation therapy, and better performance status were associated with improved survival. We conclude that HAART prolongs survival in AIDS-related CNS NHL.