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

May 12, 2025 updated by: Narjis Batool, Sheikh Zayed Medical College

Comparison Between the Efficacy and Safety of Topical Podophyllin 25% Versus Cryotherapy in the Treatment of Anogenital Warts

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

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.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
96

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Narjis Batool, Post graduate resident
  • Phone Number: +923042937478
  • Email: drnarjis99@gmail.com

Study Locations

  • Pakistan
    • Punjab
      • Rahim Yar Khan, Punjab, Pakistan, 64200
        • Sheikh zayed Medical College and Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

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:

  • Pregnancy and lactating females
  • Bleeding disorders
  • Immunocompromised 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
  • Hypersensitivity to Podophyllin.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
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
25% podophyllin applied topically once weekly for 4 weeks
Active Comparator: cryotherapy for anogenital warts( Group B)
cryotherapy of 10 seconds freeze cycle twice weekly for 04 weeks
Procedure: Cryotherapy
cryotherapy of 10 sec freeze cycle applied twice weekly for 4 weeks

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Efficacy of treatment will be graded as 'excellent' >90% clearance, 'good'60-89% clearance, 'satisfactory'30-59% clearance and 'poor'<30
Time Frame: 6 months
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.
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sheikh Zayed Medical College

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 29, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 15, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 10, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 30, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 30, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 5, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 13, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 12, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SheikhZyMC

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

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings