Effectiveness of a Vaginal Gel on CIN1/2 Regression and HPV Clearance.

July 31, 2026 updated by: Vibe Munk Bertelsen, University of Aarhus

Effectiveness of Coriolus Versicolor-based Vaginal Gel on HPV Clearance and Regression of Cervical Intraepithelial Neoplasia: a Multicenter Randomized Controlled Trial

The goal of this clinical trial is to evaluate whether a Coriolus versicolor-based vaginal gel facilitates HPV clearance in women aged 30-50 years diagnosed with HPV and CIN1 or CIN2. In addition, the study will investigate whether the gel promotes regression of CIN1/CIN2, assessment of patient satisfaction, treatment compliance and characterize the vaginal microbiome.

The primary outcomes therefore is:

• hrHPV clearance from baseline to follow-up (6 months)

In this randomized controlled study, eligible participants will be randomized 1:1 into two groups:

  1. Intervention group: Women (n=35) will apply a CV-based vaginal gel (Papilocare®) daily for 21 days for 3 months. Afterward, the gel should be used every other day for an additional 3 months. Every month includes a 7-day break due to menstruation (28 days cycle).
  2. Control group; Women (n=35) will follow the conventional "wait and see" approach.

Study Overview

Detailed Description

Persistent high-risk Human Papillomavirus (hrHPV) infections and Cervical Intraepithelial Neoplasia (CIN) represent significant public health and clinical concern. Currently, no established treatment is available to promote HPV clearance, and cervical excision remains the standard treatment for moderate- to high-grade CIN lesions despite its procedural risks. Management of women with mild to moderate lesions often involves "watchful waiting" with repeated controls, which may impose a considerable psychological burden. Therefore, there is a clinical need for effective, non-invasive treatment options for this patient population. To address this need, the primary aim of this study is to evaluate the effectiveness of a vaginal gel (Papilocare®) containing Coriolus Versicolor (CV) extract and other natural ingredients, in promoting hrHPV clearance. Secondary aims include evaluation of histological CIN regression, changes in vaginal microbiome composition, levels of stress and anxiety, patient satisfaction and treatment compliance.

This study is a multicenter, parallel-group, randomized controlled trial including women aged 30 to 50 years with both known hrHPV and histologically confirmed CIN1 or CIN2 (n = 70). Outcome assessors will be blinded to treatment allocation.

Participants will be randomized 1:1 to either six months of treatment with Papilocare® Vaginal gel (n = 35), or six months of conventional "watchful waiting" strategy (n = 35). Both groups will have a follow-up examination after 6 months, including colposcopy, cervical biopsies and two self-collected vaginal swabs for hrHPV genotyping and microbiome assessment. Participants will complete digital questionnaires before and after the intervention period, including the State-Trait Anxiety Inventory (STAI-20) and the Perceived Stress Scale (PSS-10). Additionally, the intervention group will complete questionnaires evaluating treatment compliance and satisfaction at 3 and 6 months.

This study will provide important evidence on effectiveness of a CV-based vaginal gel in women with hrHPV infection and CIN lesions. The inclusion of histopathological evaluation and comparison of vaginal microbiome composition will provide novel insight into biological factors associated with hrHPV clearance and CIN regression. If proven clinically effective, this intervention could offer a new, safe and non-surgical treatment option for women with hrHPV-related cervical lesions, addressing an unmet need where no approved therapeutic treatment currently exists.

Both positive, negative, and inconclusive results from the project will be published in international peer-reviewed scientific journals and presented at national as well as international conferences.

Study Type

Interventional

Enrollment (Estimated)

70

Phase

  • Not Applicable

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

  • Name: Pinar Bor, Professor, MD, Ph.D.
  • Phone Number: 22504767
  • Email: isipinbo@rm.dk

Study Contact Backup

Study Locations

      • Horsens, Denmark, 8700
        • Recruiting
        • Department of Gynaecology and Obstetrics
        • Contact:
          • Mathilde K Kristensen, Medical student
          • Phone Number: 42199674
          • Email: makrki@rm.dk
      • Randers, Denmark
        • Recruiting
        • Department of Gynaecology and Obstetrics
        • Contact:
          • Mathilde Kristine Kristensen, Medical student
          • Phone Number: +4542199674
          • Email: makrki@rm.dk

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

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  • Aged 30-50 years
  • A positive hrHPV test with histopathological confirmed CIN1 or CIN2
  • Managed under a 'watchful waiting' strategy as part of standard management
  • Understand Danish, both written and orally

Exclusion criteria:

  • Pregnancy or breastfeeding
  • Unexplained vaginal bleeding
  • Immunosuppressive or immunomodulatory conditions or treatment
  • Diabetes mellitus
  • Prior hysterectomy
  • Any ongoing cancer diagnosis, prior CIN3 or a history of malignancy in the genital/anal region within 5 years (excl. non-melanoma skin cancer)

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Intervention
Women (n=35) will apply a CV-based vaginal gel (Papilocare®) daily for 21 days for 3 months. Afterward, the gel should be used every other day for an additional 3 months. Every month includes a 7-day break due to menstruation (28 days cycle).
No Intervention: Control

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Type specific HPV clearance
Time Frame: 6 months
Additional HPV self-samples will be collected by the paticipants before initiation of the vaginal gel and after 6 months of treatment.
6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Characterizing the Vaginal Microbiome
Time Frame: 6 months
A self-collected vaginal swab will be obtained before treatment initiation and again after six months of treatment.
6 months
Patient compliance and satisfaction measures
Time Frame: 6 months
Compliance and treatment satisfaction will be assessed using patient-reported questionnaires and outcomes is measured using a 5-point Likert scale (minimum value = 1, maximum value = 5), where higher scores indicate a better outcome.
6 months
Histopathologically CIN regression
Time Frame: at baseline and after 6 months
CIN regression evaluated by cervical biopsies after 6 months
at baseline and after 6 months

Collaborators and Investigators

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

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 (Actual)

June 9, 2026

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Study Registration Dates

First Submitted

February 9, 2026

First Submitted That Met QC Criteria

February 17, 2026

First Posted (Actual)

February 24, 2026

Study Record Updates

Last Update Posted (Actual)

August 3, 2026

Last Update Submitted That Met QC Criteria

July 31, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

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.

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