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A Phase 3 Trial to Demonstrate the Superiority of 1% OPA-15406 Foam to the Vehicle in Adult Patients With Atopic Dermatitis

A Multicenter, Randomized, Double-blind, Vehicle-controlled, Parallel-group Comparison Trial to Demonstrate the Superiority of 1% OPA-15406 Foam to the Vehicle in Adult Patients With Atopic Dermatitis (Phase 3 Trial)

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07173478
Enrollment
156
Registered
2025-09-15
Start date
2025-10-31
Completion date
2026-12-31
Last updated
2025-09-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atopic Dermatitis (AD)

Brief summary

To investigate the superiority of 1% OPA-15406 foam to the vehicle in adult patients with atopic dermatitis (AD).

Interventions

1% foam, topical, twice daily, for 4 weeks

DRUGVehicle

vehicle, topical, twice daily, for 4 weeks

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
15 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Participants who have been diagnosed AD based on the Diagnostic Criteria for Atopic Dermatitis (Criteria of the Japanese Dermatological Association) * Participants with a history of AD for at least 3 years * Participants who have an affected area covering from 5% to 40% of their body surface area (excluding the scalp) at the screening and baseline examinations * Participants with an IGA score of 2 or 3 at the screening and baseline examinations

Exclusion criteria

* Participants who experienced an acute exacerbation of AD or contact dermatitis within 28 days prior to the baseline examination * Participants who have been treated with OPA-15406 ointment in the past

Design outcomes

Primary

MeasureTime frameDescription
Success rate in Investigator's Global Assessment (IGA)Week 4The investigator or subinvestigator assessed the skin symptoms using IGA. The investigator or subinvestigator scored the severity (0 = clear, 1 = almost clear, 2 =mild, 3 = moderate, 4 = severe/very severe) of the overall symptoms of the treatment area (erythema, infiltration, papules, effusion and scab formation) from baseline to Week 4. Incidence of success in IGA is defined as the rate of participants whose IGA score is 0 (clear) or 1 (almost clear) and has improved by at least 2 grades (responders) from baseline.

Countries

Japan

Contacts

Primary ContactDrug Information Center
+81-3-6361-7314

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026