Clinical and immunological assessment in HIV+ subjects receiving inosine-pranobex. A randomised, multicentric study

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Abstract
Inosine-pranobex (methisoprinol, isoprinosine; INPX) is thep-acetamidobenzoic salt of N,N-dimethylamino-2-propanol and inosine in a 3:1 molar ratio. In early studies, INPX was found to partially inhibit human immunodeficiency virus (HIV) and to increase the immunocompetence of HIV-infected subjectsin vitro. We report the results of a randomised, multicentric clinical trial carried out on 553 HIV+ patients. 261 individuals were treated with INPX (two 500 mg tablets every 6 h for 3 months) and the remaining 292 constituted the untreated control group. INPX treatment was associated with a slightly improved clinical condition or with a trend in that direction, as compared to the untreated group. A preservation of the CD4/CD8 cell ratio values, a decrease in the CD8+ cells and an increase in the Leu 2–7+ cell number better than in the untreated individuals was also observed in the patients taking INPX. No serious or adverse effects of INPX have been observed.