Drug Survival of Biological Therapies in Smokers and Non-Smokers With Psoriasis: A Retrospective Cohort Study Using Data From the Australasian Psoriasis Registry.

Background: Smoking is a modifiable risk factor that increases the likelihood of developing psoriasis and the severity of the disease. In recent years, biological therapies have transformed the management of psoriasis. There is conflicting evidence about whether smoking affects the efficacy of biologics.