ClinicalTrials.gg
RecruitingNCT07881198Updated Oct 19, 2026

Liquid Nitrogen Cryotherapy Versus CO₂ Laser for Palmoplantar Warts

An interventional study of Liquid Nitrogen Cryotherapy and Carbon Dioxide (CO₂) Laser Therapy in Palmoplantar Warts, sponsored by Bkahtawar Amin Medical and Dental College Multan. Recruiting at 1 site in Pakistan. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2026-10-19.

Sponsored by Bkahtawar Amin Medical and Dental College Multan · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Jun 2026, registered Oct 2026).
  • Started Jun 2026; still recruiting 5 months later.
Updated Oct 19, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
88
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

This randomized clinical trial will compare the effectiveness of liquid nitrogen cryotherapy and carbon dioxide (CO₂) laser therapy for treating palmoplantar warts, which are human papillomavirus-related skin growths occurring on the palms and soles.

The main question the study aims to answer is:

- Does CO₂ laser therapy achieve complete wart clearance more frequently than liquid nitrogen cryotherapy after 12 weeks of treatment?

The study will include 88 adults aged 18-50 years with palmoplantar warts. Participants will be randomly assigned to one of two treatment groups:

  • Group A: Liquid nitrogen cryotherapy at -196°C, using two freeze-thaw cycles once weekly for up to 8 weeks.
  • Group B: CO₂ laser therapy administered weekly for up to 8 weeks.

Participants will be assessed at week 12 after treatment initiation by a consultant dermatologist who will not know which treatment they received. Treatment response will be classified as complete clearance (no remaining warts), partial response (fewer warts than at baseline), or no response (the same or an increased number of warts). The researchers will compare the proportion of participants achieving complete wart clearance between the two groups. Adverse effects, including blistering, ulceration, and infection, will also be recorded during treatment.

02

Conditions studied

  • Palmoplantar Warts

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Keywords

  • Palmoplantar Warts
  • Plantar Warts
  • Palmar Warts
  • Cryotherapy
  • Liquid Nitrogen
  • Carbon Dioxide Laser
  • CO₂ Laser Therapy
  • Human Papillomavirus
  • Wart Clearance
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 88 is above the median of 70 across 155 interventional studies indexed under Warts.

Browse Warts studies →

Lead sponsor

Bkahtawar Amin Medical and Dental College Multan is the lead sponsor of 3 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
18 Years to 50 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

  • Clinically diagnosed palmoplantar warts

Exclusion criteria

Exclusion Criteria:

  • Diabetes mellitus
  • Peripheral neuropathies
  • Taking treatment (topical or laser) in last 8 weeks.
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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
88 participants (estimated)

Study arms

  • Active comparator
    Liquid Nitrogen Cryotherapy

    Participants will receive liquid nitrogen cryotherapy at -196°C

    Procedure: Liquid Nitrogen Cryotherapy

  • Experimental
    CO₂ Laser Therapy

    Participants will receive carbon dioxide (CO₂) laser therapy

    Procedure: Carbon Dioxide (CO₂) Laser Therapy

Interventions

  • ProcedureLiquid Nitrogen Cryotherapy

    Participants will be administered using two freeze-thaw cycles once weekly for a maximum of 8 weeks to treat palmoplantar warts.

  • ProcedureCarbon Dioxide (CO₂) Laser Therapy

    Participants will be administered once weekly for a maximum of 8 weeks to treat palmoplantar warts.

06

What researchers measure

Primary outcomes

  1. Treatment Efficacy

    Proportion of participants achieving complete clearance of palmoplantar warts, defined as the absence of any wart lesions at the 12-week assessment compared with baseline.

    Time frame: From enrollment through the final assessment at 12-weeks (including 8 weeks of treatment)

07

Study locations

1 of 1 sites recruiting
  • Bkahtawar Amin Medical and Dental College Multan
    Multan, Punjab Province 60000, Pakistan
    Recruiting
    • Warisha A Principal Investigator, MBBS · Contactwarisha.azim96@gmail.com · +92 333 6050539
    • Muhammad F Associate Professor, FCPS · Contactdrfarooq05@yahoo.com · +92 321 6833118
    • Warisha A Principal Investigator, MBBS · Principal investigator
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jun 2026 (actual). Primary completion is estimated for Dec 2026, 5 months after the start.

Of 28 interventional studies with no phase under Warts, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 31. This study's planned 5 months is below that.

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

Registered
Oct 12, 2026
First posted
Oct 19, 2026
StartActual
Jun 4, 2026
Primary completionEst.
Dec 3, 2026
CompletionEst.
Dec 3, 2026
Last update
Oct 19, 2026
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.
Registered
First appeared on the registry. No changes since
Oct 19, 2026
Show all 1 update
  1. Oct 19, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07881198
Lead sponsor
Bkahtawar Amin Medical and Dental College Multan
Responsible party
Warisha Azam Khan (Principal Investigator, Bkahtawar Amin Medical and Dental College Multan) — Principal investigator
First posted
Oct 19, 2026
Start date
Jun 4, 2026
Primary completion
Dec 3, 2026 (estimated)
Completion
Dec 3, 2026 (estimated)
Last update
Oct 19, 2026

Study contacts

Warisha A Principal Investigator, MBBS
Contact
warisha.azim96@gmail.com
+92 333 6050539
Muhammad F Associate Professor, FCPS
Contact
drfarooq05@yahoo.com
+92 321 6833118
Muhammad F Associate Professor, FCPS
study chair · Bkahtawar Amin Medical and Dental College Multan

Oversight

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

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