Described are specific compounds of formula (I) and pharmaceutically acceptable salts thereof, which are active as modulators of retinoid-related orphan receptor gamma. Representative compounds include 2-(4-(1,1-difluoro-2-hydroxypropyl)phenyl)-N-(4-(3-(2-ethylphenyl)pyrazin-2-yl)phenyl)acetamide, N-(4-(3-(4-chlorophenyl)pyrazin-2-yl)phenyl)-2-(4-(1,1-difluoro-2- methoxyethyl)phenyl)acetamide and (S)-2-(4-(1,1-difluoro-2-hydroxypropyl)phenyl)-N-(4-(3-(2-ethylphenyl)pyrazin-2-yl)phenyl)acetamide. These compounds are therefore useful in the treatment of rheumatoid arthritis, psoriasis, chronic obstructive pulmonary disease (COPD), asthma, multiple sclerosis, colitis, ulcerative colitis and inflammatory bowel disease.