NCT03961529

Brief Summary

To demonstrate the safety of 1% OPA-15406 ointment in adult patients with AD and of 0.3% and 1% OPA-15406 ointments in pediatric patients with AD administered twice daily for 52 weeks.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
366

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started May 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 26, 2019

Completed
18 days until next milestone

Study Start

First participant enrolled

May 14, 2019

Completed
9 days until next milestone

First Posted

Study publicly available on registry

May 23, 2019

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 11, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 11, 2020

Completed
1 year until next milestone

Results Posted

Study results publicly available

November 19, 2021

Completed
Last Updated

November 19, 2021

Status Verified

October 1, 2021

Enrollment Period

1.5 years

First QC Date

April 26, 2019

Results QC Date

October 21, 2021

Last Update Submit

October 21, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Subjects Experiencing Treatment-Emergent Adverse Events (TEAEs)

    The number of subjects were calculated regarding adverse events occurring after IMP administration (=TEAEs).

    Treatment period (52 weeks)

Secondary Outcomes (2)

  • Responder Rate of Investigator's Global Assessment (IGA)

    Week 52

  • Responder Rate of Eczema Area and Severity Index 75 (EASI 75)

    Week 52

Study Arms (2)

0.3% OPA-15406 ointment

EXPERIMENTAL

Twice daily

Drug: 0.3% OPA-15406 ointment

1% OPA-15406 ointment

EXPERIMENTAL

Twice daily

Drug: 1% OPA-15406 ointment

Interventions

Twice daily

0.3% OPA-15406 ointment

Twice daily

1% OPA-15406 ointment

Eligibility Criteria

Age2 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Age: At least 2 years (at time of obtaining informed consent)
  • Diagnosis of AD based on the Japanese Dermatological Association's criteria
  • Atopic dermatitis affecting ≥5% of body surface area (BSA, excluding scalp) at the screening and baseline examinations

You may not qualify if:

  • \- Subjects who have an AD or contact dermatitis flare-up defined as a rapid intensification of AD, within 28 days prior to the baseline examination

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shirao clinic of pediatrics and pediatric allergy

Hiroshima, Japan

Location

Related Publications (1)

  • Saeki H, Imamura T, Yokota D, Tsubouchi H. Difamilast Ointment in Japanese Adult and Pediatric Patients with Atopic Dermatitis: A Phase III, Long-Term, Open-Label Study. Dermatol Ther (Heidelb). 2022 Jul;12(7):1589-1601. doi: 10.1007/s13555-022-00751-9. Epub 2022 Jun 18.

MeSH Terms

Conditions

Dermatitis, Atopic

Condition Hierarchy (Ancestors)

Skin Diseases, GeneticGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesDermatitisSkin DiseasesSkin and Connective Tissue DiseasesSkin Diseases, EczematousHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Results Point of Contact

Title
Director of Clinical Trials
Organization
Otsuka Pharmaceutical Co., LTD.

Study Officials

  • Osamu Sato

    Otsuka Pharmaceutical Co., Ltd.

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 26, 2019

First Posted

May 23, 2019

Study Start

May 14, 2019

Primary Completion

November 11, 2020

Study Completion

November 11, 2020

Last Updated

November 19, 2021

Results First Posted

November 19, 2021

Record last verified: 2021-10

Data Sharing

IPD Sharing
Will share

Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Data will be available after marketing approval in global markets, or beginning 1-3 years following article Publication. There is no end date to the availability of the data.
Access Criteria
Otsuka will share data on an Otsuka-owned remotely accessible data sharing platform with Python and R analytical software. Research requests should be directed to clinicaltransparency@Otsuka-us.com.

Locations