ClinicalTrials.gg
RecruitingNCT07698886Updated Oct 20, 2026

Treatment of Recurrent Genital Warts by Combination of CO2 Laser and Geniwa Gel

A Phase 2 interventional study of Geniwa gel and Placebo gel in HPV (Human Papillomavirus)-Associated and Genital Warts, sponsored by KTH Biopharma. Recruiting at 1 site in Vietnam. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-20.

Primary conditionCondylomata AcuminataRegistry: Papillomavirus InfectionsReclassifiedWhy we changed it
Registry
Papillomavirus Infections — the first condition term the registry derived for this study.
ClinicalTrials.gg
Condylomata Acuminata
Why
  1. The study's listed conditions name Condylomata Acuminata, a narrower term within Papillomavirus Infections.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by KTH Biopharma · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Jul 2026; still recruiting 3 months later.
Updated Oct 20, 2026Eligibility revisedPrimary outcomes revisedGo to Updates ↓
Phase
Phase 2
Study type
Interventional
Enrollment
70
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Phase II, a randomized, double-blind, placebo-controlled clinical trial to evaluate the effectiveness and recurrence of genital warts by combination of CO2 laser and Geniwa gel compared to laser CO2 combined with gel placebo. The clinical trial is conducted at National Dermatology Hospital, Hanoi, Vietnam.

Read the detailed description

Phase II, randomized, controlled, and double blind clinical trial to evaluate the effectiveness and recurrence of genital warts by CO2 laser combined with Geniwa gel treatment. Sixty to eighty patients with a history of genital warts that were resistant to conventional treatments were enrolled in a randomized, double-blind, placebo-controlled study comparing a combination of CO2 laser and Geniwa gel and a combination of CO2 laser and placebo gel.

In the first phase of the study, 60-80 patients were randomly assigned to 2 groups. The first group received a combination of CO2 laser and Geniwa gel for 6 weeks. The second group received a combination of CO2 laser and placebo gel for 6 weeks.

On day 1, after CO2 laser treatment, Geniwa gel (5% alpha lactalbumin-oleic acid) or saline placebo gel was applied to each lesion by investigator. The lesion was covered with a hydrocolloid dressing fastened with Micropore tape for 6 hours-10 hours (during the night). Thereafter, the patients followed the same procedure at home once a day and received a new coded bottle (Geniwa or placebo gel) weekly in the clinic. The genital wart lesions were inspected, measured, and photographed at enrollment, at week 2- 12 during the treatment period, and three to six months after the completion of treatment. The width, length, and height of each lesion were measured with the use of a slide caliper, and the volume of each genital wart lesion was calculated.

If genital warts recur during the first six-week period, CO2 laser treatment will be applied, followed by the continued use of a placebo or Geniwa topical gel. The randomization code was broken after all patients had completed six weeks of the randomly assigned treatment. Geniwa gel is predicted to be superior to placebo. For this reason, patients in both groups were offered six weeks of open-label treatment with Geniwa gel according to the protocol used in the first, randomized phase of the study. The patients participating in the second phase did not know whether they had received Geniwa or placebo during the first treatment period. After the end of open-label treatment with Geniwa, the patients were allowed to use conventional treatment if they wished.

A short-term follow-up investigation was performed approximately 4-6 months after the completion of the second (open-label) treatment period. The sites of treated lesions and possible new lesions were inspected, and the patients were interviewed about the length of time to the resolution of their lesions, about any other treatment they had received for genital warts, and about any other illness or treatment in the intervening period.

For patients who experience bleeding or significant wound pain after CO2 laser treatment, Geniwa or placebo topical gel application may not be possible until 1-2 days later.

Additionally, patients who undergo CO2 laser treatment are prescribed oral cefotaxime (for 7 days) and topical Tyrosur gel (Tyrothricin) daily (1-3 days) in the morning to reduce infection and promote wound healing. Tyrosur gel is used at different times of the day than placebo/Geniwa gel.

02

Conditions studied

  • HPV (Human Papillomavirus)-Associated
  • Genital Warts

Browse trials for

Keywords

  • HPV
  • Genital warts
03

In context

Condylomata Acuminata Reclassified

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

This study's planned enrollment of 70 is below the median of 158 across 95 interventional studies indexed under Condylomata Acuminata.

Browse Condylomata Acuminata studies →

Lead sponsor

This is the only study on the registry with KTH Biopharma as lead sponsor.

Compared within Condylomata Acuminata, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Papillomavirus Infections. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

The criteria were revised on the registry on Oct 20, 2026. See what changed

Ages eligible
18 Years and older
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

  1. 18 years of age or older.
  2. Able to read and understand the Patient Information Sheet and the form.
  3. Acceptance in the participation of the essay and signature of the Informed Consent form.
  4. Diagnosis of genital and anal warts with clear clinical manifestations.
  5. Have undergone at least 2 laser or nitrogen treatments and have experienced recurrence in any location.
  6. At least four or more lesions, or a lesion area of at least 0.5 cm2.

Exclusion criteria

Exclusion Criteria:

  1. Concomitant sexually transmitted infections such as gonorrhea, syphilis, genital herpes, etc., that have not been cured.
  2. Ulceration or suspected malignant transformation of the lesions.
  3. Local infections.
  4. Pregnant women.
  5. Allergies to any component of alpha-lactalbumin-oleic acid gel.
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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
70 participants (estimated)

Study arms

  • Placebo comparator
    Combination of CO2 laser and placebo gel

    Placebo gel contains saline gel

    Other: Placebo gel

  • Experimental
    Combination of CO2 laser and Geniwa gel

    Geniwa gel contains 5% alpha lactalbumin-oleic acid complexes

    Drug: Geniwa gel

Interventions

  • DrugGeniwa gel

    Geniwa gel contains alpha lactalbumin-oleic acid 5%

  • OtherPlacebo gel

    Placebo gel contains saline

06

What researchers measure

Primary outcomes

  1. The efficacy

    Number of patients with complete elimination of all genital warts lesions at 12-week treatment period. Patients who achieved complete elimination of genital warts during treatment were assessed for recurrence within 4-6 months after the last treatment. The lession area is measured in cm2 or mm2.

    Time frame: 12 weeks of treatment

Secondary outcomes

  1. Partial elimination

    Number of patients with partial elimination, defined by a reduction of \>50% in lesion area compared to pre-treatment lesions at week 0 or week 6 (if recurrence). Lession area is measured in cm2.

    Time frame: 1-12 weeks of treatment

  2. New lesions

    Number of patients with new lesions: assessment and comparison of the number, morphology, location, size (in cm or mm), and area (in cm2 or mm2) of recurrent lesions at weeks 3, 6, 9, and 12 (visually and with topical acetic acid).

    Time frame: 1 week-6 months

  3. Recurrence rate

    Number of patients with recurrence rate: The recurrence rate is defined as the percentage of patients who were completely cured during treatment and experienced recurrent genital warts during the follow-up period.

    Time frame: 4-6 months after the last treatment

  4. The Safety

    Percentage of patients experiencing at least one adverse event, percentage of patients experiencing at least one serious adverse event, the number of adverse events in each group.

    Time frame: 1-12 weeks of treatment

  5. Wart lesions

    Number of wart lesions/patient

    Time frame: 1-12 weeks of treatment

07

Study locations

1 of 1 sites recruiting
  • National Dermatology Hospital, Hanoi, Vietnam.
    Hanoi, None (International) 121000, Vietnam
    Recruiting
08

References and documents

Publications

  • Gustafsson L, Leijonhufvud I, Aronsson A, Mossberg AK, Svanborg C. Treatment of skin papillomas with topical alpha-lactalbumin-oleic acid. N Engl J Med. 2004 Jun 24;350(26):2663-72. doi: 10.1056/NEJMoa032454. PubMed 15215482 ↗

Individual participant data

Plan to share: Yes — Images data, including HPV lesions, HPV tests, pathology HE staining, etc., will be shared using a code but will contain identifying images or personal information of the patient.

Supporting information: Study protocol, Clinical study report

Time frame: Start date: 15/08-2027. No end date

Access criteria: Secondary Researchers and Qualified Requestors. Information regarding the IPD sharing plan will be provided once the clinical trial is complete.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Jul 2026 (actual). Primary completion is estimated for Aug 2027, 12 months after the start.

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

Registered
Jun 30, 2026
First posted
Jul 13, 2026
StartActual
Jul 16, 2026
Primary completionEst.
Aug 15, 2027
CompletionEst.
Sep 15, 2027
Last update
Oct 20, 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.
Eligibility
1 inclusion criterion edited
What changed in the criteria
Inclusion criteria
  • EditedHave undergone at least 2 laser or nitrogen treatments and have experienced recurrence in any location.
Oct 20, 2026
Primary outcomes
1 time frame changed, 1 removed, 1 description edited
What changed in the outcomes
  • RemovedThe SafetyTime frame: 1-12 weeks of treatment
  • Time frameThe efficacy1-12 weeks of treatment → 12 weeks of treatment
  • DescriptionThe efficacy: how it is measured was reworded
Oct 20, 2026
Secondary outcomes
2 added, 1 removed
What changed in the outcomes
  • AddedThe SafetyTime frame: 1-12 weeks of treatment
  • AddedWart lesionsTime frame: 1-12 weeks of treatment
  • RemovedHPV clearance criteriaTime frame: 4-6 months after the last treatment
Oct 20, 2026
Show all 1 update
  1. Oct 20, 2026
    Eligibility 1 inclusion criterion edited
    What changed in the criteria
    Inclusion criteria
    • EditedHave undergone at least 2 laser or nitrogen treatments and have experienced recurrence in any location.
    Primary outcomes 1 time frame changed, 1 removed, 1 description edited
    What changed in the outcomes
    • RemovedThe SafetyTime frame: 1-12 weeks of treatment
    • Time frameThe efficacy1-12 weeks of treatment → 12 weeks of treatment
    • DescriptionThe efficacy: how it is measured was reworded
    Secondary outcomes 2 added, 1 removed
    What changed in the outcomes
    • AddedThe SafetyTime frame: 1-12 weeks of treatment
    • AddedWart lesionsTime frame: 1-12 weeks of treatment
    • RemovedHPV clearance criteriaTime frame: 4-6 months after the last treatment

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
NCT07698886
Lead sponsor
KTH Biopharma
Responsible party
Sponsor
First posted
Jul 13, 2026
Start date
Jul 16, 2026
Primary completion
Aug 15, 2027 (estimated)
Completion
Sep 15, 2027 (estimated)
Last update
Oct 20, 2026

Study contacts

Thanh Tam Tran, MD
Contact
Tranthanhtam.fmh@gmail.com
+84383744842

Oversight

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

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