Document 2851 DOCN M94A2851 TI Comparative evaluation of ZDV and ddI in AIDS patients with previous ZDV treatment. A randomized multicenter study ISS-901. Italian AZT/DDI Evaluation Group. DT 9412 AU Tomino C; Floridia M; Chiesi A; Dally LG; Seeber A; Fragola V; Sebastiani G; Vella S; Lab. of Virology, Istituto Superiore di Sanita, Rome. SO Int Conf AIDS. 1994 Aug 7-12;10(1):210 (abstract no. PB0271). Unique Identifier : AIDSLINE ICA10/94369724 AB OBJECTIVES: To evaluate in patients with AIDS the possible benefit of switching to didanosine after 6-18 months of AZT treatment in terms of survival and onset of new AIDS-defining diseases. METHODS: Multicenter, open, randomized study. AIDS patients with at least 6 months of AZT therapy, with no major intolerance, were randomly assigned to continue AZT or be switched to DDI. Major end-points for efficacy were survival and development of new AIDS-defining diseases. Major end-points for toxicity were adverse events leading to discontinuation of treatment. RESULTS: The study started in September 1990. Follow-up closure date was July 31, 1993. Mean follow up was 16 months. Baseline characteristics of patients enrolled are outlined below (Table 1): The results of a survival analysis performed on an intention to treat approach are reported below (Fig. 1). The CD4 response for the two groups is shown in Fig.2. CONCLUSION: Results do not show significant benefit in terms of survival in DDI-switched patients. Switching to DDI, however, seems to delay the decrease in CD4+ count. TABULAR DATA, SEE ABSTRACT VOLUME. DE Acquired Immunodeficiency Syndrome/*DRUG THERAPY/MORTALITY Adult AIDS-Related Opportunistic Infections/PREVENTION & CONTROL Comparative Study Didanosine/*THERAPEUTIC USE Female Human Leukocyte Count Male Survival Analysis Treatment Outcome T4 Lymphocytes Zidovudine/*THERAPEUTIC USE CLINICAL TRIAL MEETING ABSTRACT MULTICENTER STUDY RANDOMIZED CONTROLLED TRIAL SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).