NCT01084824.

Study name	A Randomized Clinical Trial Examining the Efficacy of Treatment of Cutaneous Verruca Vulgaris in Adult Patients With Combined Liquid Nitrogen Cryotherapy and Topically Applied Cantharidin
Methods	This is a parallel‐assignment, double‐blind randomised study.
Participants	Inclusion criteria of the trial Common warts on non‐genital and non‐facial skin Otherwise healthy Aged between 18 to 65 and able to give informed consent Capable of tolerating treatment
Interventions	Liquid nitrogen and cantharidin Liquid nitrogen and topical placebo
Outcomes	Outcomes of the trial Percentage of common warts cleared at 12 weeks Percentage of treated warts cleared with treatment, as measured with dermatoscopic examination, after 12 weeks
Starting date	June 2007
Contact information	Richard A Flygare, PhD, Principal Investigator TUI University North Idaho Dermatology Coeur D'Alene Idaho, USA 83814
Notes	This trial has completed.