Larex, Inc., partnered with a major food manufacturer to conduct a clinical study to determine the potential stimulatory effect of larch arabinogalactan on the pediatric immune system.  Larch arabinogalactan, a natural compound found in the Larix genus of trees, has been shown to stimulate the human immune response in adults. A number of immune system boosters have entered the market in recent years, however, most of these products have not been evaluated in clinical trials with pediatric populations.