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Topical 15% zinc oxide ointment significantly reduces the size of common warts after 4 weeks’ application: a randomized, triple-blinded, placebo-controlled trial

Topical 15% zinc oxide ointment significantly reduces the size of common warts after 4 weeks’ application: a randomized, triple-blinded, placebo-controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
TCTR
Registry ID
TCTR20180523001
Enrollment
Unknown
Registered
2018-05-23
Start date
2017-04-11
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

palmar warts or verruca vulgaris

Interventions

applied 3 times per day by using cotton&#45
tip applicators (CTA) and occluded by bandage (3M Thailand Co.&#44
Lat Lum Kaew&#44
Pathum Thani) for at least 1 hour,applied 3 times per day by using cotton&#45
Pathum Thani) for at least 1 hour
Experimental Drug,Placebo Comparator Drug
topical 15% zinc oxide,Hydrophilic cream

Sponsors

Ratchadaphiseksomphot Endowment Fund
Lead Sponsor
Ratchadaphiseksomphot Endowment Fund
Collaborator

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: Patients older than 18 years with at least 2 similar palmar warts or verruca vulgaris on either one or both hands were eligible. The wart diameter had to range between 2 to 8 millimeters, the total number of lesions had to be at least 2 but not more than 15 and they must have never been treated with any zinc preparations.

Exclusion criteria

Exclusion criteria: Subjects who had recalcitrant warts which were defined as warts unresponsive to any treatment at least 5 times in the past 6 months, those who had known allergy to any formulation of zinc, or categorized as immunocompromised host, e.g. poorly-controlled diabetes mellitus, acquired immunodeficiency syndrome (AIDS), chronic kidney disease, or were treated with immunosuppressive agents by topical or systemic treatment, as well as pregnant or lactating women were excluded from the study.

Design outcomes

Primary

MeasureTime frame
size of the lesion (surface area) week 0, 2 and 4 photograph by dermoscopy and analyzed by illustrator CS6

Secondary

MeasureTime frame
Side effect of topical 15% zinc oxide week 0, 2 and 4 case record form,diameter of the lesion week 0, 2 and 4 photograph by dermoscopy and analyzed by illustrator CS6,volume of the lesion week 0, 2 and 4 Antera camera 3D,patients and physician assessment week 4 score from questionnaire

Countries

Thailand

Contacts

Public ContactPravit Asawanonda

Chulalongkorn University

fibrosis@gmail.com+66818129393

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026