The safety and efficacy of zidovudine (AZT) in the treatment of subjects with mildly symptomatic human immunodeficiency virus type 1 (HIV) infection. A double-blind, placebo-controlled trial. The AIDS Clinical Trials Group
| Autor: | M A, Fischl, D D, Richman, N, Hansen, A C, Collier, J T, Carey, M F, Para, W D, Hardy, R, Dolin, W G, Powderly, J D, Allan |
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| Rok vydání: | 1990 |
| Předmět: |
Adult
CD4-Positive T-Lymphocytes Male Acquired Immunodeficiency Syndrome HIV Antigens HIV Infections Opportunistic Infections Hematologic Diseases Leukocyte Count Double-Blind Method AIDS-Related Complex Data Interpretation Statistical HIV-1 Humans Multicenter Studies as Topic Female Zidovudine Randomized Controlled Trials as Topic |
| Zdroj: | Annals of internal medicine. 112(10) |
| ISSN: | 0003-4819 |
| Popis: | To evaluate the efficacy and safety of zidovudine early in the treatment of human immunodeficiency virus type 1 (HIV) infection.A double-blind, randomized, placebo-controlled trial with subject stratification by pretreatment CD4 T lymphocyte counts.Multicenter trial at AIDS Clinical Trial units.Seven hundred eleven subjects with mildly symptomatic HIV infection.Three hundred fifty-one subjects were assigned to placebo and 360 to zidovudine, 200 mg orally every 4 hours. The median duration of follow-up was 11 months.Fifty-one subjects developed the acquired immunodeficiency syndrome (AIDS), advanced AIDS-related complex, or death as a first critical event. For the stratum of subjects with more than 200 but less than 500 CD4 T lymphocytes/mm3 before treatment, 34 events occurred in placebo recipients and 12 in zidovudine recipients (P = 0.0002; relative risk [RR] estimate, 3.23 [95% CI, 1.67 to 6.24]). For the stratum of subjects with 500 to 799 CD4 T lymphocytes/mm3 before treatment, 2 events occurred in placebo recipients and 3 in zidovudine recipients. Candidiasis at study entry independently increased the risk for having an event (P = 0.005; RR estimate, 2.3 [95% CI, 1.29 to 4.12]); HIV antigenemia at study entry also increased this risk (P = 0.01; RR estimate, 2.1 [95% CI, 1.2 to 3.8]). Significant differences between the treatment groups in CD4 T-lymphocyte counts occurred in subjects with more than 200 but less than 500 CD4 T lymphocytes/mm3 after 4 weeks of therapy (P = 0.002). Differences persisted through week 52. Less prominent changes occurred in subjects with 500 or more CD4 T lymphocytes/mm3. Serum levels of HIV antigen decreased significantly in zidovudine recipients. Serious anemia and neutropenia occurred in 5% and 4% of zidovudine recipients, respectively, and in 0% and 1% of placebo recipients, respectively.Zidovudine delayed progression of HIV disease and produced little toxicity in subjects with mildly symptomatic HIV disease and less than 500 CD4 T lymphocytes/mm3. |
| Databáze: | OpenAIRE |
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