According to the web resource www.clinicaltrials.gov (date: 1 October 2018; terms: wound and glucan; conditions: all studies; country: all countries), two human randomized clinical studies with an estimated number of participants of 80 per trial are currently in progress focusing on the treatment of diabetic foot ulcers and venous leg ulcers using β-glucan-based products. Here, PPIB is linked to diabetic foot.