Carbon Dioxide Laser and Cryotherapy in Treatment of Warts

Comparative Evaluation of Carbon Dioxide Laser and Cryotherapy by Dermoscopy in Treatment of Viral Wart

Viral warts are common skin conditions seen in both children and adults. Human papilloma virus is responsible for verrucae. Cutaneous manifestation of the human papillomavirus, are extremely common particularly on the hands and feet. Warts can induce hard, thickened skin, black pinpoints, pain or tenderness with significant morbidity for the patients.

Study Overview

• Status: Unknown
• Conditions: Common Warts
• Intervention / Treatment: Device: Carbon dioxide laser; Device: Cryotherapy

Detailed Description

A range of types of wart have been identified, varying in shape and site affected, as well as the type of human papillomavirus involved.

These include:

• Common wart (Verruca vulgaris).
• Flat wart (Verruca plana).
• Filiform or digitate wart.
• Genital wart (venereal wart, Condyloma acuminatum, Verruca acuminata).
• Mosaic wart.
• Periungual wart.
• Plantar wart (verruca, Verruca plantaris). Despite the presence of several therapeutic options, treatment of warts can present a challenge and they are not uniformly effective. Viral warts often disappear without treatment. In case of pain, discomfort and long duration they can be treated . Treatment options include cryotherapy, electrocautery, salicylic acid, immune therapy, minor surgery or laser surgery.

Common warts have a distinctive appearance and can usually be diagnosed with the unaided eye; however, early growth stages and post-treatment warts are less easily diagnosed. Published dermoscopic features of common warts include frogspawn pattern, mosaic pattern and dotted, linear, globular or coiled vessels. Mosaic pattern consists of relatively flattened, rounded structures of similar size, resembling a jigsaw puzzle. Frogspawn pattern consists of densely packed papillae, each containing red dot or loop, surrounded by a whitish halo. Vascular structures seen dermoscopically in common warts as red or black dotted, linear, globular and coiled vessels. Haemorrhages are possible additional features, with black dots corresponding to thrombosed vessels. Hairpin vessels were usually seen in non-wart lesions.

In this study, we aim to compare two therapeutic modalities, the clinical effectiveness and safety of carbon dioxide laser and cryotherapy in the treatment of viral warts together with dermoscopic evaluation of viral warts before and after treatment.

• Study Type: Interventional
• Enrollment (Anticipated): 60
• Phase: Not Applicable

Contacts and Locations

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Patients with common warts male or females any age.
2. Patient is able to read and understand English and will give written informed consent to participate.
3. Patient elects to undergo carbon dioxide laser therapy or cryotherapy for treatment of common warts.
4. Warts to be treated will be located only on the hands.

Exclusion Criteria:

1. Non cooperative patients.
2. Patients on other lines of treatment.
3. Pregnant and lactating females.
4. Patients receiving topical treatment in the previous two weeks.
5. Secondary infection.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Carbon dioxide laser group; (group A): thirty patients will be treated by application of carbon dioxide laser.	Device: Carbon dioxide laser; Radiation by carbon dioxide laser
Active Comparator: Cryotherapy group; (group B): thirty patients will be treated by cryotherapy application.	Device: Cryotherapy; Device using cooling effect

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number and size of the lesions.	Dermoscopic evaluation	Two months

Collaborators and Investigators

• Sponsor: Assiut University

Publications and helpful links

General Publications

• Vlahovic TC, Khan MT. The Human Papillomavirus and Its Role in Plantar Warts: A Comprehensive Review of Diagnosis and Management. Clin Podiatr Med Surg. 2016 Jul;33(3):337-53. doi: 10.1016/j.cpm.2016.02.003. Epub 2016 Mar 29.
• Kwok CS, Gibbs S, Bennett C, Holland R, Abbott R. Topical treatments for cutaneous warts. Cochrane Database Syst Rev. 2012 Sep 12;2012(9):CD001781. doi: 10.1002/14651858.CD001781.pub3.
• Andrews MD. Cryosurgery for common skin conditions. Am Fam Physician. 2004 May 15;69(10):2365-72.
• Zalaudek I, Giacomel J, Cabo H, Di Stefani A, Ferrara G, Hofmann-Wellenhof R, Malvehy J, Puig S, Stolz W, Argenziano G. Entodermoscopy: a new tool for diagnosing skin infections and infestations. Dermatology. 2008;216(1):14-23. doi: 10.1159/000109353.

Study record dates

Study Major Dates

• Study Start (Anticipated): August 1, 2017
• Primary Completion (Anticipated): August 1, 2018
• Study Completion (Anticipated): August 1, 2019

Study Registration Dates

• First Submitted: May 23, 2017
• First Submitted That Met QC Criteria: May 23, 2017
• First Posted (Actual): May 25, 2017

Study Record Updates

• Last Update Posted (Actual): May 25, 2017
• Last Update Submitted That Met QC Criteria: May 23, 2017
• Last Verified: May 1, 2017

More Information

Terms related to this study

• Keywords: Warts,Laser,Cryotherapy
• Additional Relevant MeSH Terms: Skin Diseases; Virus Diseases; Infections; DNA Virus Infections; Skin Diseases, Infectious; Papillomavirus Infections; Skin Diseases, Viral; Tumor Virus Infections; Warts
• Other Study ID Numbers: Laser,Cryotherapy,Wart

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No