Document 2797 DOCN M94A2797 TI Response to N-acetyl-L-cysteine on the CD4-CD8 system. DT 9412 AU Focaccia R; Cattapan A; Conceicao O; Buainain R; Salaroli A; Focaccia MT; Fac. Medicina Jundiai, Brazil. SO Int Conf AIDS. 1994 Aug 7-12;10(1):222 (abstract no. PB0319). Unique Identifier : AIDSLINE ICA10/94369778 AB We report the first results of a clinical trial conducted to test the response of CD4-CD8 lymphocyte system to the administration of N-Acetyl-L-Cysteine (NAC). HIV-positive patients bearing CD4 counts < 500 cells/mm3 measured by flow cytometry were studied. Patients were divided in 2 groups that received doses every 12 Hs during 1 mo., 8 cases Parenteral, 400 mg. 7 cases Oral, 600 mg. Five of the patients were being treated with AZT without significant change of CD4 counts. RESULTS: TABULAR DATA, SEE ABSTRACT VOLUME. Two of the 8 successful cases became serum p24 antigen negative. The 6 cases of the parenteral group ceased to develop opportunistic infections so far. No side effects were reported in both groups. CONCLUSION: NAC associated to antiviral therapy can be a powerful immunotherapy drug. Current research effort is aimed to determine the clinical meaning of CD4-CD8 enhancement and the determination of a suitable maintenance schedule. DE Acetylcysteine/ADMINISTRATION & DOSAGE/*PHARMACOLOGY/THERAPEUTIC USE Adjuvants, Immunologic/ADMINISTRATION & DOSAGE/*PHARMACOLOGY/ THERAPEUTIC USE Administration, Oral Flow Cytometry Human HIV Infections/IMMUNOLOGY/*THERAPY Injections Leukocyte Count/*DRUG EFFECTS T-Lymphocytes, Cytotoxic/*DRUG EFFECTS Treatment Outcome T4 Lymphocytes/*DRUG EFFECTS Zidovudine/THERAPEUTIC USE CLINICAL TRIAL MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).