Safety and Efficacy in Patients With Moderate to Severe Subacute and Chronic Atopic Dermatitis

A Multicenter, Randomized, Single-Blind, Phase Ⅱ Clinical Trial and Open Label Long-term Observation Study of ADSTEM Inj. to Evaluate the Safety and Efficacy in Patients With Moderate to Severe Subacute and Chronic Atopic Dermatitis

A Multicenter, Randomized, Single-Blind, Phase Ⅱ Clinical Trial and Open Label Long-term Observation Study of ADSTEM Inj. to Evaluate the Safety and Efficacy in Patients with Moderate to Severe Subacute and Chronic Atopic Dermatitis.

The aim of this study is to evaluate the safety and efficacy of ADSTEM Inj. against Placebo in the treatment of atopic dermatitis in patients with moderate to severe acute and chronic atopic.

Study Overview

• Status: Active, not recruiting
• Conditions: Atopic Dermatitis
• Intervention / Treatment: Biological: ADSTEM Inj.; Other: Placebo

Detailed Description

This clinical trial is designed with multi-organization, random assignment, single-blind, second-phase clinical trials and open long-term follow up studies, and is intended for patients with secondary or above subacuteal and chronic atopic dermatitis. If the test subjects voluntarily agree in writing to participate in this clinical trial, they shall conduct the examination and examination required for four weeks prior to administration of the investigational product (visit 1) in accordance with the clinical trial plan. As a result of the suitability assessment of the test subjects, those who comply with the inclusion/exclusion criteria, adipose tissue will be collected through the liposuction method and randomly assigned to each arms. Subjects who are eligible for administration of the investigational product on the day of administration (visit 2) under the investigator's judgment are given intravenous administration of the clinical trial medication once at the date of administration (visit 2, visit 3) and follow-up inspection is conducted at 4 weeks, 8 weeks, 12 weeks, and 16 weeks after the first administration of the investigational product and safety and efficacy assessments are conducted for a total of 16 weeks. The test subjects assigned to the placebo group shall be compensated by administering a experimental drug on demand after the visit 6. It is a principle to administer the test drug prepared from the previously obtained adipose tissue, and it is possible to carry out further adipose tissue collection if necessary. However, no safety and efficacy assessments of compensatory treatments will be collected. Safety and efficacy will be analyzed after all the subjects has completed visit 6. For the experimental group only, long-term observation study for safety assessment is conducted at the point of 6 months, 12 months, 18 months, 24 months, 30 months, 36 months, 48 months, and 60 months after the second administration of the investigational product for a total of 5 years.

• Study Type: Interventional
• Enrollment (Actual): 118
• Phase: Phase 2

Contacts and Locations

Study Locations

• Korea, Republic of
  • Chungcheongnam-do
    • Daejeon, Chungcheongnam-do, Korea, Republic of
      • Chungnam National University Hospital
  • Gyeonggi-do
    • Ansan, Gyeonggi-do, Korea, Republic of
      • Korea University Ansan Hospital
  • Seoulteukbyeolsi
    • Seoul, Seoulteukbyeolsi, Korea, Republic of
      • Chung-Ang University Hospital
    • Seoul, Seoulteukbyeolsi, Korea, Republic of
      • Kyunghee University Medical Center
    • Seoul, Seoulteukbyeolsi, Korea, Republic of
      • Seoul National University Hospital
    • Seoul, Seoulteukbyeolsi, Korea, Republic of
      • SMG-SNU Boramae Medical Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 19 years to 70 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• At the time of visit 1, only men and women aged between 19 and 70
• Patients with atopic dermatitis meeting the Hanifin and Rajka diagnostic criteria
• Subacute and chronic patients with symptoms of atopic dermatitis lasting at least 6 months

• Patients with moderate to severe atopic dermatitis who meet all of the following criteria

  1. SCORAD score ≥ 20points
  2. EASI score ≥ 12points
  3. BSA ≥ 10%
• Patients with inadequate response to the stable use of topical atopic dermatitis treatment within 24 weeks prior to study initiation, or those who are unable to administer topical atopic dermatitis treatment due to safety reasons
• Patients who voluntarily agreed in writing to participate in this clinical trial

Exclusion Criteria:

• Patients with systemic infection symptoms at the time of clinical trials
• Patients with HIV, HBV, HCV, Syphilis test positive
• Patients with uncontrolled asthma disease at the time of clinical trial participation
• Patients who were considered inevitable to receive the medication from 1 month prior to administration of the clinical trial drug to visit 6 such as Immune function modifier(tacrolimus, pimecrolimus, cyclosporine, etc.), and high-frequency topical steroids in Groups 1 to 5, systemic steroids, systemic photochemotherapy, medication that are thought to affect other immune functions (such as immunoglobulin therapy like dupilumab, tralloquinap and desensitization therapy, etc.)
• Women who are pregnant, breastfeeding or have a pregnancy plan up to visit 6 or who do not use available contraceptive methods (women of childbearing age must be negative in screening pregnancy test)
• If patients are the male subject, Those who do not agree to have a contraception during the clinical trial (If the male subject or female partner is infertile, the above-mentioned contravention method is unnecessary)
• Patients participating in other clinical trials or participating in other clinical trials within the last 30 days
• Patients who have experienced significant adverse events during treatment with stem cell therapies
• Patients with stem cell therapy doses or history of participating in clinical trials
• Patients with a history of hypersensitivity to antibiotics and antifungal agents used in the manufacture of medicines for clinical trials
• Patients with renal dysfunction whose creatinine level is more than twice the normal upper limit in the screening test
• Patients with hepatic dysfunction whose AST (Aspartate Amino Transaminase) and ALT (Alanine Amino Transaminase) levels are more than three times the normal upper limit
• Patients who are not suitable for this clinical trial under the judgment of the other examiners

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: ADSTEM Inj.; ADSTEM Inj. hAD-MSC 1.0x10^8 cells	Biological: ADSTEM Inj.; Two 5mL of the following study drug is pre-mixed with 320mL of 0.9% normal saline is injected intravenously twice for the duration of the study. Treatment group: ADSTEM Inj. 0.5x10^8 cells/5mL
Placebo Comparator: Placebo; 0.9% Normal Saline Inj.	Other: Placebo; 330mL of 0.9% normal saline is injected intravenously twice for the duration of the study.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
EASI-50	Percentage of subjects whose EASI score decreased by 50% or more at 16 weeks compared to baseline	16 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
EASI-50	Percentage of subjects whose EASI score decreased by 50% or more at 4, 8 and 12 weeks compared to baseline	4, 8, 12 weeks
EASI-75	Percentage of subjects whose EASI score decreased by 75% or more at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
EASI score	EASI score change at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
SCORAD-50	Percentage of subjects whose SCORAD score decreased by 50% or more at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
SCORAD-75	Percentage of subjects whose SCORAD score decreased 75% or more at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
SCORAD score	SCORAD score change at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
SCORAD subgroup	SCORAD evaluation items(Extent Criteria, erythema, edema/population, oozing/crusting, excoriation, lichenification, dryness, pruritus, insomnia) score change at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
Severity	Severity change of disease at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
IGA grade	Investigator's Global Assessment (IGA) score at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
IGA -1 or more grade	Percentage of subjects who dropped one or more grades on the Investigator's Global Assessment (IGA) score at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
IGA -2 or more grade	Percentage of subjects who dropped two or more grades on the Investigator's Global Assessment (IGA) score at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
Total IgE	Total IgE change at 4, 8, 12, 16 weeks compared to baseline	4, 8, 12, 16 weeks
PGE2 and ECP	Prostaglandin E2 (PGE2) and Eosinophil Cationic Protein (ECP) changes at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
Immune cytokine	TGF-1, interleukin (IL)-4, 5, 6, 8, 13, 31 and CCL17 at 4, 8, 12 and 16 weeks compared to baseline	4, 8, 12, 16 weeks
Remedy used days and frequency	Days and frequency of used remedies at 4, 8, 12 and 16 weeks	4, 8, 12, 16 weeks
Remedy used subjects	Percentage of subjects whom used remedies at 4, 8,12 and 16 weeks	4, 8, 12, 16 weeks

Collaborators and Investigators

• Sponsor: EHL Bio Co., Ltd.
• Investigators: Principal Investigator: Seongjun Seo, M.D, Ph.D, Chung-Ang University Hosptial, Chung-Ang University College of Medicine; Principal Investigator: Sanguk Son, M.D, Ph.D, Korea University Ansan Hospital; Principal Investigator: Soyeon Jo, M.D, Ph.D, SMG-SNU Boramae Medical Center; Principal Investigator: Young-joon Seo, M.D, Ph.D, Chungnam National University Hospital; Principal Investigator: Donghun Lee, M.D, Ph.D, Seoul National University Hospital; Principal Investigator: Mingyeong Shin, M.D, Ph.D, Kyunghee University Medical Center

Study record dates

Study Major Dates

• Study Start (Actual): December 11, 2019
• Primary Completion (Actual): January 26, 2023
• Study Completion (Estimated): October 31, 2027

Study Registration Dates

• First Submitted: October 21, 2019
• First Submitted That Met QC Criteria: October 22, 2019
• First Posted (Actual): October 24, 2019

Study Record Updates

• Last Update Posted (Actual): March 15, 2024
• Last Update Submitted That Met QC Criteria: March 14, 2024
• Last Verified: March 1, 2024

More Information

Terms related to this study

• Keywords: AD; Stem cell; Inflammatory disease; Adipose Derived Mesenchymal Stem cell; ADMSC; ADMC; ehlbio
• Additional Relevant MeSH Terms: Skin Diseases; Immune System Diseases; Hypersensitivity, Immediate; Genetic Diseases, Inborn; Skin Diseases, Genetic; Hypersensitivity; Skin Diseases, Eczematous; Dermatitis; Eczema; Dermatitis, Atopic
• Other Study ID Numbers: AD-CP-18-1; 30902 (Other Grant/Funding Number: Republic of Korea Ministry of Food and Durg Safety)

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