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Completed

NCT Number: NCT06132919

Efficacy and Safety of MC2-25 Cream & Vehicle in Women With Vulvar Lichen Sclerosus (VLS)

The purpose of this study is to explore the efficacy and safety of MC2-25 cream and MC2-25 vehicle in women with vulvar lichen schelosus (VLS).

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Key information

Age range

18 year and older

Sex eligibility

Female

Study type

Interventional

Phase

Phase 2

Primary location

MC2 Therapeutics study site

Kolding, Denmark

About this study

In this study, subjects who fulfil all inclusion and exclusion criteria are enrolled.

Eligible subjects will be randomized in a 1:1 ratio to MC2-25 cream or MC2-25 vehicle, respectively.

The subjects will apply the assigned investigational medicinal product (IMP) daily for 12 weeks.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Women, of any race or ethnicity, who are ≥18 years of age at the time of screening.
  • Able to understand the trial and willing to comply with trial requirements.
  • Has provided written informed consent.
  • Clinical diagnosis of VLS.
  • Presence of at least one of the following signs of VLS: Hyperkeratosis and/or Sclerosis.
  • First symptoms of VLS noticed by the patient at least 6 months before baseline.
  • At least four WI-NRS scores available in the diary for calculation of the average WI-NRS at the baseline visit.
  • At least moderate itch defined as average WI-NRS ≥4 at the Baseline visit.
  • Women must be of either of non-childbearing potential or childbearing potential with a negativ urine pregnancy test at baseline.
  • Women of childbearing potential must agree to use a highly effective method of contraception.

Exclusion criteria

  • Pregnant, breast feeding, or planning to become pregnant during the trial.
  • Any (other than VLS) ongoing localized or systemic disease involving the vulvar region.
  • Ongoing symptomatic Urinary Tract Infection.
  • Ongoing or prior diagnosis of any genitoanal malignancy or pre-malignancy.
  • Any kind of ongoing cancer prior to the Baseline visit.
  • Any chronic or acute systemic medical condition that, in the opinion of the investigator, may pose a risk to the safety of the patient or may interfere with the assessment of efficacy in this trial.
  • Known history of allergic reaction to any ingredients in MC2-25 cream or MC2-25 vehicle.
  • Start of a new or change of existing non-biologic systemic treatment, within 21 days prior to the Baseline visit.
  • Start of a new or change of existing biologic systemic treatment, within 3 months or 5 half-lives (whichever is longest) prior to the Baseline visit.
  • Start of a new or change of existing systemic or intravaginal treatment with estrogen containing products, within 21 days prior to the Baseline visit.
  • Start of new or change of menstrual care routines within 21 days prior to the Baseline visit.
  • Use of emollients on the vulvar region within 3 days prior to the Baseline visit.
  • Use of any topical treatment on the vulvar region, within 14 days prior to the Baseline visit.
  • Use of any light therapy on the vulvar region, within 28 days prior to the Baseline visit.
  • Received a non-marketed or blinded drug within 28 days or 5 half-lives (whichever is longer) prior to the Baseline visit.
  • If in the opinion of the investigator, the patient is unlikely to comply with the clinical trial protocol.
  • If previously randomized in this trial.

Treatment and study plan

MC2-25 cream

Drug

Topical application

MC2-25 vehicle

Drug

Topical application

Primary outcomes

  1. Mean Change in Weekly Mean Worst Itch Numeric Rating Score (WI-NRS)

    Time frame: 12 weeks

    Mean change in weekly Worst Itch Numeric Rating score WI-NRS (as measured on a 11-point numeric rating scale from 0 - 10, where 0 represents no itch and 10 represents worst imaginal itch), calculated as the average of weekly means WI-NRS values from Baseline to Week 12 for MC2-25 cream compared to MC2-25 vehicle.

Sponsors and collaborators

Lead sponsor

MC2 Therapeutics

Industry

Registry information

Official study title

A Parallel Group (2-arm), Randomised, Double-blind, 12-week Trial to Explore the Efficacy and Safety of MC2-25 Cream and MC2-25 Vehicle in Women Diagnosed With Vulvar Lichen Sclerosus (VLS)

Acronym: Orchid 1

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Nov 15, 2023
Registry last updated
Oct 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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