Phase 2 Trial of HY209gel in Atopic Dermatitis Patients

February 19, 2026 updated by: Shaperon

A Randomized, Double-blind, Placebo-controlled, Multicenter, Phase 2 Study to Evaluate the Efficacy and Safety of HY209 Gel in Patients With Mild to Moderate Atopic Dermatitis(AD)

This is a randomized, double-blind, placebo-controlled, multi-center, phase 2 study in patients with mild to moderate Atopic Dermatitis(AD), which consists of 2 parts.

Study Overview

Detailed Description

Part 1 (2 cohorts): Total 33 subjects

  • Cohort A: 15 subjects (6 HY209gel 0.5%, 6 HY209gel 1%, and 3 placebo)
  • Cohort B: 9 subjects (6 HY209gel 2%, and 3 placebo)
  • Cohort C: 9 subjects (6 HY209gel 4%, and 3 placebo)

Part 2 (3 treatment groups): Total 177 subjects

  • Low dose of HY209gel: 59 subjects
  • High dose of HY209gel: 59 subjects
  • Placebo (Vehicle): 59 subjects

Part 1 is a dose-escalation part of HY209gel using lower doses of HY209gel (0.5% and 1%) with escalation (HY209gel 2% and 4%) to evaluate the pharmacokinetics(PK), safety, and tolerability of HY209gel treatment. Escalation to the next dose level will be decided by the Safety Monitoring Committee(SMC) that will review all available safety data of the planned dose level within the timeline specified on SMC charter after all enrolled subjects of each cohort complete 2-week treatment and determine the escalation to the next dose to be safe.

Based on the interim analysis for 4-week safety and efficacy data collected from Part 1, two doses will be selected for use in Part 2, which will enroll up to 177 subjects in 3 treatment arms (59 subjects per treatment arm) to evaluate the efficacy and safety of HY209gel, compared to placebo (vehicle) for 8-week treatment period.

Study Type

Interventional

Enrollment (Estimated)

210

Phase

  • 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 Locations

      • Seoul, South Korea
        • Seoul National University Hospital
      • Seoul, South Korea
        • Severance Hospital, Yonsei University Health System
      • Seoul, South Korea
        • Seoul National University Bundang Hospital
      • Seoul, South Korea
        • Gachon University Gil Medical Center
    • Alabama
      • Birmingham, Alabama, United States, 35244
        • Cahaba Dermatology Skin Health Center
    • California
      • Encino, California, United States, 16133
        • RAOOF MD Dermatology
      • Los Angeles, California, United States, 90057
        • L.A. Universal Research Center, Inc.
      • Los Angeles, California, United States, 90212
        • Zenith Research Inc.
    • Maryland
      • Towson, Maryland, United States, 21204
        • Continental Clinical Solutions, LLC
    • Michigan
      • Southfield, Michigan, United States, 19505
        • Revival Research Institute, LLC
    • New York
      • New York, New York, United States, 10075
        • Sadick Dermatology
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213
        • University of Pittsburgh Medical Center

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
  • Older Adult

Accepts Healthy Volunteers

No

Description

Key Inclusion Criteria:

  • Male or female subjects aged 18 or older
  • Subjects who have a history of AD at least 6 months ago from screening and have been clinically stable for ≥ 1 month
  • Subjects with a clinical diagnosis of AD according to the Hanifin and Rajka Criteria by a board certified/eligible dermatologist
  • Subjects who have a minimum of 5% and a maximum of 30% of total body surface area (BSA) affected by AD at screening and baseline visits
  • Subjects with vIGA score 2 or 3 corresponding to mild to moderate AD at screening and baseline visit
  • Subjects should be a literate person who can read the participant information sheet and consent form/questionnaire and understand the language of the participation

Key Exclusion Criteria:

  • Subjects who have unstable AD (i.e., remaining clinical stable less than 6 months) or any consistent requirement for any potency topical corticosteroids
  • Subjects who have topical treatment with corticosteroids within 2 weeks prior to baseline visit or other topical treatments of the AD area at screening (moisturizers/emollients are allowed)
  • Subjects who had systemic treatment with corticosteroids or cyclosporine or other immunosuppressive treatments within 4 weeks prior to baseline visit
  • Subjects who had dupilumab or any other biologics within 6 months prior to baseline visit
  • Subjects who take any systemic anti-infective or antibiotic treatments within 1 week prior to baseline visit
  • Subjects who had ultraviolet irradiation (including photopheresis) within 4 weeks prior to screening
  • Subjects who have active malignancy or history of cancer in 5 years prior to screening, except for treated cautions basal cell carcinoma and in situ cervical cancer
  • Subjects who have any other skin diseases that would affect the ability to assess the AD
  • Subjects who are taking any other concomitant drug that, in the opinion of the PI, may cause interference with the treatment
  • Subjects who participated in another drug or device trial within 4 weeks prior to screening...etc

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: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: PART 2 High-Dose
Active group selected for PART1 as a high-dose
Selected two among four doses (HY209GEL 0.5% or 1% or 2% or 4%) in PART1
Active Comparator: PART 2 Low-Dose
Active group selected for PART1 as a Low-dose
Selected two among four doses (HY209GEL 0.5% or 1% or 2% or 4%) in PART1
Placebo Comparator: PART 2 Placebo
Placebo group
Placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage change in Eczema Area and Severity Index (EASI) score
Time Frame: at Week 8
To achieve lower score means disease improvement .
at Week 8

Collaborators and Investigators

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

Sponsor

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)

March 1, 2024

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

August 31, 2026

Study Registration Dates

First Submitted

July 24, 2023

First Submitted That Met QC Criteria

August 31, 2023

First Posted (Actual)

September 6, 2023

Study Record Updates

Last Update Posted (Actual)

February 23, 2026

Last Update Submitted That Met QC Criteria

February 19, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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