Document 2882 DOCN M94A2882 TI Loviride induces a prolonged rise of the CD4 count in asymptomatic HIV-1+ subjects. DT 9412 AU De Brabander M; Staszewski S; De Cree J; Verhaegen H; Stoffels P; Van Den Broeck R; Roels V; Janssen PA; CRU St. Bartholomeus, Merksem, Belgium. SO Int Conf AIDS. 1994 Aug 7-12;10(1):203 (abstract no. PB0242). Unique Identifier : AIDSLINE ICA10/94369693 AB OBJECTIVE: to compare the effect on CD4 count of treatment with placebo or with the alpha-APA compounds R18893 and loviride (R89439) a new derivative with improved activity and selectivity and greatly enhanced bioavailability (plasma levels > 100x the IC50 for HIV-1) METHODS: double blind, double dummy investigation of 24 weeks on 114 evaluable participants with baseline CD4 count > 400 or > 20%. Monthly clinical and laboratory evaluation. Main parameter CD4 count and percentage determined on 3 separate samples to improve accuracy. RESULTS: with placebo or R18893 treatment the mean CD4 number fluctuated around baseline and the mean CD4% decreased progressively to +/- 95% of baseline. Loviride induced a significant increase of the CD4% to +/- 105% of baseline (p = .035 versus placebo, general linear model with mixed effects) The number of CD4 lymphocytes fluctuated between 110-120% of baseline up to the end of the study (24 weeks; p = 0.005 versus placebo). In the placebo group the number of patients with increased or stable CD4 counts fluctuated around 50% while this was 60-70% in the loviride group. Both loviride and R18893 were very well tolerated (Staszewski et al. this meeting). Sofar, the resistance conferring mutations Y-181 or Y106 did not appear in plasma samples (last analysis = 3 months, further data available at meeting by Staszewski et al.) DISCUSSION AND CONCLUSIONS: loviride treatment produced a long lasting rise in the CD4 count in asymptomatic patients in the absence of any side effects and without inducing the early appearance of resistant virus strains. It appears to be the alpha-APA compound of choice for further investigations in mono- and in combination-therapy. DE Acetamides/*PHARMACOLOGY Acetophenones/*PHARMACOLOGY Antiviral Agents/*PHARMACOLOGY Comparative Study Double-Blind Method Human HIV Infections/BLOOD/*DRUG THERAPY Leukocyte Count/*DRUG EFFECTS Reverse Transcriptase/*ANTAGONISTS & INHIB Treatment Outcome *T4 Lymphocytes 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).