OptiBiotix Health plc has received FDA authorisation for an Investigational New Drug ("IND") application for DS-01™, a broad spectrum multi-species, multi-strain probiotic which contains OptiBiotix's Lactobacillus plantarum LPLDL® The regulatory acceptance enables DS-01 to enter a Phase II randomised, triple-blind, and placebo-controlled clinical trial to investigate the role of the gut microbiome in patients with Irritable Bowel Syndrome ("IBS") and the impact of DS-01™ on intestinal microbial communities.