[Cycloferon efficacy in treatment of upper respiratory tract infections: systematic review and meta-analysis]

Medical scientific sources about randomized clinical trials of Cycloferon were studied as a single plot of 531 articles. AIM was to get the generalized cycloferon efficacy's assessment in comparison with basic therapies curing the otorhinolaryngologic diseases. Groups heterogeneity and responding parameters' variability were estimated also. Comparison groups were symmetric enough to annihilate end-point variabilities, so the results' interpretations were clear enough and vector of clinical effects was detectable. Comparison groups were integrated to increase statistical power of metaanalysis. In result, cycloferon additional administration in treatment of otorhinolaryngologic diseases added 25% to absolute and relative usefulness of medical intervention. Also cycloferon increased 3,5 times the chances of recovery and absence of recurrent exacerbation.