Document 2779 DOCN M94A2779 TI Immunotherapy with rgp160 (VaxSyn), and AZT, in asymptomatic HIV-infected individuals. DT 9412 AU Aiuti F; Pontesilli O; Guerra E; Ricci G; Varani AR; Carlesimo M; Scala E; Mollicone B; Giovannetti A; Pandolfi F; et al; Univ. of Rome La Sapienza, Italy. SO Int Conf AIDS. 1994 Aug 7-12;10(1):227 (abstract no. PB0337). Unique Identifier : AIDSLINE ICA10/94369796 AB OBJECTIVE: To evaluate the effects of gp160 (VaxSyn, MicroGeneSys Inc., Meridien CT, USA) immunotherapy in association or not with AZT on safety and immuno-virological markers, in asymptomatic HIV-infected patients with CD4 counts > 400 and < 600 cells/mm3. METHODS: 100 patients have been randomized to 3 treatment groups: 1) VaxSyn+Placebo AZT, 2) VaxSyn+AZT, 3) Placebo VaxSyn (Alum)+AZT. Immunological response, viral load, clinical evolution of disease, adverse experiences and reactogenicity are monitored. RESULTS: Characteristics at entry of the patients are: mean age 31.9 years (+/- 6.0); 69 males, 31 females. Of 151 study events reported 33 (21.8%) were minor discomforts at injection site, headache was reported 27 times (17.8%), and nausea 12 times (7.9%). At entry, CD4 cells were 487 +/- 99/mm3 and CD8 cells 1052 +/- 534/mm3. No significant changes were observed after six months of treatment in the whole study population (473 +/- 87 and 965 +/- 499 cells/mm3 respectively). The ratio CD45RA+/CD45R0+ in the CD4 lymphocyte population was 1.42 +/- 0.86 at entry and 1.50 +/- 0.76 after six months. Lymphoproliferative response to gp160 was found in 13.1% of the subjects at enrollment and a significant increase of it in 44% after 3-6 months of treatment. DISCUSSION AND CONCLUSIONS: The results of 9 months of follow-up indicate that association of VaxSyn and AZT treatment is well tolerated. Modifications of env-specific responses and no major changes of immunological parameters are seen in the study population after 6 months. Unblinded analysis of laboratory data and long-term follow-up of the patients are needed to assess treatment efficacy. DE Adult AIDS Vaccines/ADVERSE EFFECTS/*THERAPEUTIC USE Combined Modality Therapy Comparative Study Female Gene Products, env/ADVERSE EFFECTS/*THERAPEUTIC USE Human HIV Infections/DRUG THERAPY/*THERAPY *Immunotherapy, Active Leukocyte Count Male Protein Precursors/ADVERSE EFFECTS/*THERAPEUTIC USE Recombinant Proteins/ADVERSE EFFECTS/THERAPEUTIC USE T-Lymphocyte Subsets Treatment Outcome Vaccines, Synthetic/ADVERSE EFFECTS/*THERAPEUTIC USE Zidovudine/*THERAPEUTIC USE CLINICAL TRIAL MEETING ABSTRACT RANDOMIZED CONTROLLED TRIAL SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).