Background treatments for systemic sclerosis and digital ulcers were permitted if they remained constant for at least 1 month prior to the start of treatment and during the double-blind study period.
Süsteemse skleroosi ja sõrmehaavandite taustravi lubati kasutada, kui see oli sama vähemalt 1 kuu enne ravi algust ja topeltpimeda uuringu ajal.