BB2603 is a novel cutaneous spray of terbinafine hydrochloride with nanotechnology, which is designed to greatly enhance delivery of terbinafine to target fungal infections under the nail. Terbinafine has a wide range of antifungal activity against pathogenic fungi of skin, hair and nails, and is recommended for the treatment of onychomycosis and tinea pedis by both the Chinese and foreign guidelines.
Onychomycosis and tinea pedis are very common diseases in China. The incidence of onychomycosis accounts for 2%-18% of the population, while the incidence of tinea pedis accounts for approximately 15%, even up to 30%-70% of the population, characterized by high incidence and recurrence rate.
