Document 0805 DOCN M9590805 TI High-dose pentoxifylline in patients with AIDS: inhibition of tumor necrosis factor production. National Institute of Allergy and Infectious Diseases AIDS Clinical Trials Group. DT 9509 AU Dezube BJ; Lederman MM; Spritzler JG; Chapman B; Korvick JA; Flexner C; Dando S; Mattiacci MR; Ahlers CM; Zhang L; et al; Department of Medicine, Beth Israel Hospital, Boston, MA 02215,; USA. SO J Infect Dis. 1995 Jun;171(6):1628-32. Unique Identifier : AIDSLINE MED/95287063 AB Tumor necrosis factor-alpha (TNF) may activate human immunodeficiency virus (HIV), antagonize zidovudine activity, and contribute to AIDS wasting syndrome. Pentoxifylline decreases TNF production. In cell culture, pentoxifylline decreases HIV replication and gene expression. Since an AIDS Clinical Trial Group study suggested that pentoxifylline (400 mg thrice daily) is safe in AIDS patients and decreases TNF mRNA levels in peripheral blood mononuclear cells (PBMC), a second cohort received 800 mg thrice daily for 8 weeks. During treatment, the median decrease in TNF production by PBMC cultured with 0.1 microgram/mL lipopolysaccharide (LPS) was 40%. The median change in TNF mRNA was a 34% decrease. Pentoxifylline did not affect HIV levels as detected by quantitative microculture or serum p24 antigen measurements, nor did it alter zidovudine pharmacokinetics. The most common toxicity was gastrointestinal. Pentoxifylline at dosages of less than thrice-daily 800 mg is well tolerated and may decrease TNF mRNA levels and LPS-induced TNF production. DE beta 2-Microglobulin/METABOLISM Acquired Immunodeficiency Syndrome/*DRUG THERAPY Biopterin/ANALOGS & DERIVATIVES/BLOOD Body Weight/DRUG EFFECTS CD4 Lymphocyte Count Drug Therapy, Combination Gene Expression/DRUG EFFECTS Human Pentoxifylline/*ADMINISTRATION & DOSAGE/PHARMACOKINETICS/TOXICITY RNA, Messenger/GENETICS Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. Triglycerides/BLOOD Tumor Necrosis Factor/BIOSYNTHESIS/GENETICS CLINICAL TRIAL JOURNAL ARTICLE MULTICENTER STUDY SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).