Trial Outcomes & Findings for Long-term Trial of OPA-15406 Ointment in Adult and Pediatric Patients With Atopic Dermatitis (NCT NCT03961529)

NCT ID: NCT03961529

Last Updated: 2021-11-19

Results Overview

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

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

366 participants

Primary outcome timeframe

Treatment period (52 weeks)

Results posted on

2021-11-19

Participant Flow

Participant milestones

Participant milestones
Measure
Adult: 1% OPA-15406 Ointment
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
Twice daily
Pediatric: 1% OPA-15406 Ointment
Twice daily
Overall Study
STARTED
166
144
56
Overall Study
COMPLETED
124
127
51
Overall Study
NOT COMPLETED
42
17
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Adult: 1% OPA-15406 Ointment
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
Twice daily
Pediatric: 1% OPA-15406 Ointment
Twice daily
Overall Study
Adverse Event
13
5
2
Overall Study
Withdrawal by Subject
17
2
1
Overall Study
Withdrawal by parent/guardian
0
7
0
Overall Study
Physician Decision
2
1
1
Overall Study
Lost to Follow-up
2
1
0
Overall Study
Lack of Efficacy
2
0
1
Overall Study
Other
6
1
0

Baseline Characteristics

Long-term Trial of OPA-15406 Ointment in Adult and Pediatric Patients With Atopic Dermatitis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Adult: 1% OPA-15406 Ointment
n=166 Participants
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
n=144 Participants
Twice daily
Pediatric: 1% OPA-15406 Ointment
n=56 Participants
Twice daily
Total
n=366 Participants
Total of all reporting groups
Age, Continuous
33.7 years
STANDARD_DEVIATION 11.3 • n=5 Participants
7.1 years
STANDARD_DEVIATION 3.5 • n=7 Participants
8.3 years
STANDARD_DEVIATION 3.5 • n=5 Participants
7.4 years
STANDARD_DEVIATION 3.5 • n=4 Participants
Sex: Female, Male
Female
65 Participants
n=5 Participants
63 Participants
n=7 Participants
18 Participants
n=5 Participants
146 Participants
n=4 Participants
Sex: Female, Male
Male
101 Participants
n=5 Participants
81 Participants
n=7 Participants
38 Participants
n=5 Participants
220 Participants
n=4 Participants
Race/Ethnicity, Customized
Asian
166 Participants
n=5 Participants
144 Participants
n=7 Participants
56 Participants
n=5 Participants
366 Participants
n=4 Participants
Region of Enrollment
Japan
166 Participants
n=5 Participants
144 Participants
n=7 Participants
56 Participants
n=5 Participants
366 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Treatment period (52 weeks)

Population: Safety set: subjects who have received the IMP at least once

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

Outcome measures

Outcome measures
Measure
Adult: 1% OPA-15406 Ointment
n=166 Participants
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
n=144 Participants
Twice daily
Pediatric: 1% OPA-15406 Ointment
n=56 Participants
Twice daily
Number of Subjects Experiencing Treatment-Emergent Adverse Events (TEAEs)
120 Participants
131 Participants
47 Participants

SECONDARY outcome

Timeframe: Week 52

Population: Subjects who have received the IMP at least once and had IGA score at the baseline.

The 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 52. Incidence of success in IGA is defined as the rate of subjects whose IGA score is 0 (clear) or 1 (almost clear) and has improved by at least 2 grades (responders) from baseline.

Outcome measures

Outcome measures
Measure
Adult: 1% OPA-15406 Ointment
n=166 Participants
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
n=144 Participants
Twice daily
Pediatric: 1% OPA-15406 Ointment
n=56 Participants
Twice daily
Responder Rate of Investigator's Global Assessment (IGA)
34.94 percentage of participants
Interval 27.71 to 42.71
52.78 percentage of participants
Interval 44.29 to 61.15
51.79 percentage of participants
Interval 38.03 to 65.34

SECONDARY outcome

Timeframe: Week 52

Population: Subjects who have received the IMP at least once and had EASI score at the baseline.

The investigator or sub investigator assessed the symptoms of AD using EASI. EASI's minimum and maximum scores are 0 and 72 scores respectively. The higher the EASI score is, the more severe the symptoms of AD. The investigator or sub investigator scored the severity (0-3 points) and affected body surface area (%) based on the 4 symptoms (erythema, infiltration/papules, excoriation, and lichenification) on the 4 body regions (face, neck and head ; upper limbs ;trunk; and lower limbs). EASI 75 is defined as the rate of subjects whose EASI score has improved at least 75% from baseline.

Outcome measures

Outcome measures
Measure
Adult: 1% OPA-15406 Ointment
n=166 Participants
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
n=144 Participants
Twice daily
Pediatric: 1% OPA-15406 Ointment
n=56 Participants
Twice daily
Responder Rate of Eczema Area and Severity Index 75 (EASI 75)
55.42 percentage of participants
Interval 47.52 to 63.13
77.08 percentage of participants
Interval 69.35 to 83.67
64.29 percentage of participants
Interval 50.36 to 76.64

Adverse Events

Adult: 1% OPA-15406 Ointment

Serious events: 2 serious events
Other events: 72 other events
Deaths: 0 deaths

Pediatric: 0.3% OPA-15406 Ointment

Serious events: 1 serious events
Other events: 108 other events
Deaths: 0 deaths

Pediatric: 1% OPA-15406 Ointment

Serious events: 0 serious events
Other events: 43 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Adult: 1% OPA-15406 Ointment
n=166 participants at risk
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
n=144 participants at risk
Twice daily
Pediatric: 1% OPA-15406 Ointment
n=56 participants at risk
Twice daily
Eye disorders
Rhegmatogenous retinal detachment
0.60%
1/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
0.00%
0/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
0.00%
0/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Pneumonia bacterial
0.00%
0/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
0.69%
1/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
0.00%
0/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Diffuse large B-cell lymphoma
0.60%
1/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
0.00%
0/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
0.00%
0/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.

Other adverse events

Other adverse events
Measure
Adult: 1% OPA-15406 Ointment
n=166 participants at risk
Twice daily
Pediatric: 0.3% OPA-15406 Ointment
n=144 participants at risk
Twice daily
Pediatric: 1% OPA-15406 Ointment
n=56 participants at risk
Twice daily
Eye disorders
Conjunctivitis allergic
3.0%
5/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
9.7%
14/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
12.5%
7/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Bronchitis
0.60%
1/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
6.2%
9/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
5.4%
3/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Folliculitis
6.0%
10/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
6.2%
9/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
8.9%
5/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Gastroenteritis
3.0%
5/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
7.6%
11/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
10.7%
6/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Impetigo
1.2%
2/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
18.1%
26/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
8.9%
5/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Influenza
3.0%
5/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
14.6%
21/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
7.1%
4/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Molluscum contagiosum
0.00%
0/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
4.9%
7/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
5.4%
3/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Nasopharyngitis
14.5%
24/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
32.6%
47/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
30.4%
17/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Infections and infestations
Pharyngitis
0.00%
0/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
4.2%
6/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
7.1%
4/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Skin papilloma
2.4%
4/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
4.9%
7/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
5.4%
3/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Skin and subcutaneous tissue disorders
Dermatitis atopic
21.1%
35/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
20.8%
30/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
30.4%
17/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Skin and subcutaneous tissue disorders
Dermatitis contact
3.0%
5/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
6.2%
9/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
5.4%
3/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
Skin and subcutaneous tissue disorders
Urticaria
4.8%
8/166 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
9.7%
14/144 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.
5.4%
3/56 • Treatment period (52 weeks)
Subjects who have received the IMP at least once were included in the safety analysis.

Additional Information

Director of Clinical Trials

Otsuka Pharmaceutical Co., LTD.

Phone: +81-3-6361-7366

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place