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Not yet recruitingNCT06809777Updated May 13, 2025

Comparison Between Efficacy of Topical 25%Podophyllin and Cryotherapy on Genital Warts

A Phase 2 interventional study of Topical 25% podophyllin and Cryotherapy in Anogenital Human Papilloma Virus Infection, sponsored by Sheikh Zayed Medical College. Not yet recruiting at 1 site in Pakistan. Open to participants aged 16 Years to 60 Years. Per ClinicalTrials.gov, last updated 2025-05-13.

Sponsored by Sheikh Zayed Medical College · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Nov 2025, 11 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
96
Allocation
Randomized
Ages
16 Years to 60 Years
Sex
All
01

Study summary

Human papilloma virus (HPV), is the major prevalent cause of sexually transmitted disease affecting genitalia, causing Condylomata Accuminata, also known as external genital warts or anogenital warts.¹ Occurring in men and women with a prevalence rate of 0.6-1.2% worldwide. It primarily affects those in the age range of 20-25 years. Human papilloma virus infections subclinically are primarily caused by either type HPV- 6 or HPV- 11.

A vast variety of treatment options are available to treat CA , including immunomodulators ( imiquimod, purified protein derivative and the HPV vaccine), physical ablation ( cryotherapy and electrodessication) and topical cytotoxic drugs ( TCA, phenol, 5- fluorouracil, retinoids, podophyllin and bleomycin)¹ . Although there are multiple effective treatment are present for EGW, no single treatment has been identified as the best ideal way to treat CA.

Cryotherapy causes the destruction of keratinocytes infected with HPV by using below zero temperature and leading to thermal cell necrosis.

Podophyllum peltatum and Podophyllum emodi are the main source of Podophyllin, a refined plant- based resin.¹² It works by attaching itself to the infected cell's microtubule disturbing the linking process which stops the mitotic process during the metaphase stage of cell division causing the death of epithelial cell.

Study will include patients which will be divided into 2 groups A \& B, 48 in each group. Group A will receive topical 25% podophyllin resin via cotton bud under supervision once weekly for 04 weeks. Group B will receive cryotherapy of 10sec freeze cycle twice weekly for 04 weeks. Patient will be followed at interval of 4 weeks and 8 weeks from start of treatment.

Treatment will be considered efficant when decrease in the number of warts is clinically evident at follow up visits. Efficacy of treatment will be graded as 'excellent' >90% clearance, 'good'60-89% clearance, 'satisfactory'30-59% clearance and 'poor'\<30% clearance.

Read the detailed description

Human papilloma virus (HPV), is the major prevalent cause of sexually transmitted disease affecting genitalia, causing Condylomata Accuminata, also known as external genital warts or anogenital warts. Occurring in men and women with a prevalence rate of 0.6-1.2% worldwide. It primarily affects those in the age range of 20-25 years. Human papilloma virus infections subclinically are primarily caused by either type HPV- 6 or HPV- 11.Topical medicines, surgeries and other treatment are among the many possible therapeutic options available. However recurrence and treatment failure are observed with almost all the available treatment after the warts have been visibly cleared.

EGW management poses a major obstacle therapeutically . The patient's immunological condition determine the outcome of the warts , if they are left untreated , they could go away spontaneously, get bigger in size and numerous , or remain the same. The treatment goal is to remove visible warts in order to potentially reduce their infectious , if not the carcinogenic properties.

In this study we will compare the efficacy of topical 25% podophyllin resin versus cryotherapy for the treatment of warts .

Study will include patients which will be divided into 2 groups A \& B, 48 in each group. Group A will receive topical 25% podophyllin resin via cotton bud under supervision once weekly for 04 weeks. Group B will receive cryotherapy of 10sec freeze cycle twice weekly for 04 weeks. Patient will be followed at interval of 4 weeks and 8 weeks from start of treatment.

Treatment will be considered efficant when decrease in the number of warts is clinically evident at follow up visits. Efficacy of treatment will be graded as 'excellent' >90% clearance, 'good'60-89% clearance, 'satisfactory'30-59% clearance and 'poor'\<30% clearance.

02

Conditions studied

  • Anogenital Human Papilloma Virus Infection

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Keywords

  • Anogenital warts
  • Topical 25% podophyllin
  • cryotherapy
03

In context

Condylomata Acuminata

116 studies on the registry are indexed under Condylomata Acuminata; 11 are open to participants now.

This study's planned enrollment of 96 is below the median of 158 across 95 interventional studies indexed under Condylomata Acuminata.

Browse Condylomata Acuminata studies →

Lead sponsor

Sheikh Zayed Medical College is the lead sponsor of 27 studies on the registry; 8 are open to participants now.

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

04

Who can participate

Ages eligible
16 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age: 16-60years
  • Gender: Any gender
  • All new clinically diagnosed cases of plane warts
  • Type of warts: plane warts
  • Area: Ano-genital warts
  • Size: Less than 10cm2(cummulative)
  • No. of warts: Upto 20
  • Duration of disease: Any

Exclusion criteria

Exclusion Criteria:

  • Pregnancy and lactating females
  • Bleeding disorders
  • patients.
  • Diabetic patients / Peripheral vascular disease.
  • Bleeding warts, moles, birthmarks.
  • Any other inflammatory dermatosis on that area
  • History of any previous treatment in last 2 months.
  • Liver/Renal disease
  • to Podophyllin.
Terms in these criteria, in plain language(2)

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.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
96 participants (estimated)

Study arms

  • Active comparator
    25% podophyllin in treatment of anogenital warts ( Group A )

    25% podophyllin resin will be applied topically once weekly for 4 weeks

    Drug: Topical 25% podophyllin

  • Active comparator
    cryotherapy for anogenital warts( Group B)

    cryotherapy of 10 seconds freeze cycle twice weekly for 04 weeks

    Procedure: Cryotherapy

Interventions

  • DrugTopical 25% podophyllin

    25% podophyllin applied topically once weekly for 4 weeks

  • ProcedureCryotherapy

    cryotherapy of 10 sec freeze cycle applied twice weekly for 4 weeks

06

What researchers measure

Primary outcomes

  1. Efficacy of treatment will be graded as 'excellent' >90% clearance, 'good'60-89% clearance, 'satisfactory'30-59% clearance and 'poor'<30

    Treatment will be considered efficant when decrease in the number of warts is clinically evident at follow up visits at 4 weeks and 8 weeks after the start of treatment. Efficacy of treatment will be graded as 'excellent' \>90% clearance, 'good'60-89% clearance, 'satisfactory'30-59% clearance and 'poor'\<30% clearance.

    Time frame: 6 months

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Start is estimated for Jun 2025; primary completion for Nov 2025, 4 months later.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 30, 2025
First posted
Feb 5, 2025
StartEst.
Jun 29, 2025
Primary completionEst.
Nov 15, 2025
CompletionEst.
Dec 10, 2025
Last update
May 13, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 13, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06809777
Lead sponsor
Sheikh Zayed Medical College
Responsible party
Narjis Batool (Post graduate resident in Dermatology, Sheikh Zayed Medical College) — Principal investigator
First posted
Feb 5, 2025
Start date
Jun 29, 2025 (estimated)
Primary completion
Nov 15, 2025 (estimated)
Completion
Dec 10, 2025 (estimated)
Last update
May 13, 2025

Study contacts

Narjis Batool, Post graduate resident
Contact
drnarjis99@gmail.com
+923042937478

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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