ClinicalTrials.gg
RecruitingNCT06737406Updated Dec 19, 2025

Topical 5-Fluorouracil (5FU) Plus Calcipotriol in Children With Palmoplantar Wart

An interventional study of Topical 5% fluorouracil cream and Topical 0.005% calcipotriol ointment in Common Warts, sponsored by Mazandaran University of Medical Sciences. Recruiting at 1 site in Iran. Open to participants aged 4 Years to 18 Years. Per ClinicalTrials.gov, last updated 2025-12-19.

Sponsored by Mazandaran University of Medical Sciences · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jul 2026, 4 months ago, but the record still lists the study as recruiting.
  • Started May 2025; still recruiting 1 year 5 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
4 Years to 18 Years
Sex
All
01

Study summary

Warts caused by the human papillomavirus (HPV) are one of the most common skin conditions among children. The prevalence of warts in school-aged children ranges from 10 to 20 percent. Warts are more common among immunocompromised patients [1, 2]. Some studies also show that the prevalence of viral warts in the pediatric population increases with age, peaking in adolescence. HPV is a DNA virus that replicates only in fully differentiated epithelial cells. More than 80 types of HPV have been identified. Types 27, 57, 2, and 1 are the most common types of HPV in skin warts in the general population. Warts usually affect patients of different age groups and various parts of the body, causing physical and psychological complications for patients (such as pain, discomfort, and embarrassment), which in turn lead to functional impairment. Warts often affect pressure points on the soles of the feet. Although most warts are asymptomatic, plantar warts are often associated with pain while walking, causing physical and psychological stress [3].

Various treatments such as keratolytic agents, cryotherapy, laser, antimitotic treatments, contact sensitizers, and intralesional injection of antigen have been used. There is no evidence that one treatment is superior to others, and in many cases, treatment of viral warts requires a combination of treatments. Treatment selection for patients should be based on variables such as wart size, number of lesions, anatomical location, patient preference, cost, convenience, side effects, and operator experience. It is important to emphasize that good communication between the patient, parents, and dermatologist is essential for successful treatment in children [2, 4].

Despite having various treatment approaches, treating plantar warts is challenging. No single treatment is effective in most patients, treatments are often painful, and they are associated with a high recurrence rate. Although nearly 75 percent of warts can resolve spontaneously within two years, patients often seek treatment for cosmetic reasons and pain. Many studies have examined the use of vitamin D compounds (calcipotriol) and 5-fluorouracil in wart patients separately or in combination with other drugs, but only one recent case report that tested the combination of these two showed very positive efficacy results [5, 6].

To date, no clinical trial has evaluated the combination of calcipotriol and 5-fluorouracil. Additionally, given that common current treatments such as cryotherapy are painful for children, achieving an effective, pain-free intervention is necessary. This study aims to evaluate the efficacy and side effects of the combination of 5-fluorouracil and calcipotriol in children (ages 4 to 18) with palmar and plantar warts in a randomized, double-blind, placebo-controlled clinical trial.

02

Conditions studied

  • Common Warts

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Keywords

  • Wart
  • 5-Fluorouracil
  • Calcipotriol
  • Children
03

In context

Warts

171 studies on the registry are indexed under Warts; 35 are open to participants now.

This study's planned enrollment of 60 is below the median of 70 across 155 interventional studies indexed under Warts.

Browse Warts studies →

Lead sponsor

Mazandaran University of Medical Sciences is the lead sponsor of 22 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria: The inclusion criteria include the clinical or pathological diagnosis (only for suspicious lesions confirmed pathologically) of cutaneous warts on the palmoplantar area by a dermatologist. The patients' ages range from 4 to 18 years old, and the number of warts must be a maximum of 20.

Exclusion Criteria: The exclusion criteria include pregnancy and breastfeeding, warts on the face, inguinal, and genital areas, to topical vitamin D derivatives or fluorouracil, extensive warts requiring other treatments, and receiving any treatment in the past two months. Patients with confirmed immunodeficiency will also be excluded from the study.

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    A

    5% fluorouracil cream + 0.005% calcipotriol ointment

    Drug: Topical 5% fluorouracil cream · Drug: Topical 0.005% calcipotriol ointment

  • Experimental
    B

    5% fluorouracil cream + Placebo

    Drug: Topical 5% fluorouracil cream · Drug: Placebo

  • Experimental
    C

    0.005% calcipotriol ointment + Placebo

    Drug: Topical 0.005% calcipotriol ointment · Drug: Placebo

Interventions

  • DrugTopical 5% fluorouracil cream

    Topical 5% fluorouracil cream twice daily for 21 days on the affected area (palmoplantar)

  • DrugTopical 0.005% calcipotriol ointment

    Topical 0.005% calcipotriol ointment twice daily for 21 days on the affected area (palmoplatar)

  • DrugPlacebo

    A placebo ointment in identical tubes in terms of color and scent and with identical usage instructions to calcipotriol.

  • DrugPlacebo

    A placebo cream in identical tubes in terms of color and scent and with identical usage instructions to fluorouracil.

06

What researchers measure

Primary outcomes

  1. Treatment respone

    Treatment respone * No response: The wart shows no visible reduction in size, texture, or color, and there is no improvement in symptoms after the treatment. * Partial or Poor response: The wart demonstrates a reduction in size, texture, or color, but it is not completely resolved. Some improvement in symptoms may be noted, but the wart remains partially present. * Complete response: The wart is fully resolved with no visible signs remaining. All symptoms are eliminated, and the skin appears almost normal at the site of the wart.

    Time frame: The number of lesions is recorded at 2 weeks, 4 weeks, and 8 weeks after the intervention.

Secondary outcomes

  1. Number of Lesions

    This outcome measures the total count of wart lesions present on a patient at each assessment point during the study. The number of lesions is recorded before the start of treatment and monitored at regular intervals throughout the treatment period and follow-up visits. The change in the number of lesions over time helps assess the effectiveness of the treatment in reducing wart lesions.

    Time frame: The number of lesions is recorded at 2 weeks, 4 weeks, and 8 weeks after the intervention.

  2. Size Change (Number of Lesions)

    Size Change (Number of Lesions) This outcome tracks the change in size of the wart lesions over time, categorizing them into two options: * Decrease: The lesions have reduced in size compared to the initial measurement taken before the start of treatment. * Increase: The lesions have grown in size compared to the initial measurement taken before the start of treatment.

    Time frame: The size change is evaluated at 2 weeks, 4 weeks, and 8 weeks after the intervention.

  3. Adverse Events

    Adverse Events This outcome tracks the occurrence of any adverse events experienced by the patient during the study. Adverse events are monitored and recorded at each assessment point. * No: The patient does not experience any adverse events related to the treatment. * Yes: The patient experiences one or more adverse events. If "Yes," the adverse events are described in detail, including the type, severity, duration, and any measures taken to manage the events.

    Time frame: Adverse events are assessed at 2 weeks, 4 weeks, and 8 weeks after the intervention.

  4. Photography

    Photographs are taken of all patients at each assessment point to document the visual appearance of the wart lesions. This provides a visual record to support the assessment of treatment response and size change.

    Time frame: These photographs are taken at 0, 2 weeks, 4 weeks, and 8 weeks after the intervention.

07

Study locations

1 of 1 sites recruiting
  • Iran
    Sari, Mazandaran, Iran
    Recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 19, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06737406
Lead sponsor
Mazandaran University of Medical Sciences
Responsible party
Mohammad Malekan (Medical Doctor, Mazandaran University of Medical Sciences) — Principal investigator
First posted
Dec 17, 2024
Start date
May 30, 2025
Primary completion
Jul 1, 2026 (estimated)
Completion
Aug 1, 2026 (estimated)
Last update
Dec 19, 2025

Study contacts

Mohammad Malekan, MD
Contact
malekan.mohammad78@gmail.com
+989117554873

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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