To evaluate the effect of LYT-100 on the change in distance walked on six-minute walk test (6MWT) performed as per the American Thoracic Society/European Respiratory Society Guidelines (Crapo et al 2002).Timepoint: All patients will be treated up to 91 consecutive days during the study treatment period. Study assessments are at Days 14; 28; 56 and Day 91 ± 3 days.

To evaluate the effect of LYT-100 on the change in distance walked on six-minute walk test (6MWT) performed as per the American Thoracic Society/European Respiratory Society Guidelines (Crapo et al 2002).Timepoint: All patients will be treated up to 91 consecutive days during the study treatment period. Study assessments are at Days 14; 28; 56 and Day 91 ± 3 days.