Conditions: Atopic Dermatitis
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 32
Healthy volunteers: yes

Brief summary:
To assess the safety (especially skin findings) and pharmacokinetics by applying 0.3%, 1%, or 3% formulation of 5g OPA-15406 ointment to a 1000 cm2 area as a single-dose and as a multiple-dose twice daily for 2 weeks in Japanese healthy adult male subjects.

Detailed description:

Arms:
arm 1: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned0.3% OPA-15406 ointment assessed until 48 hours postdose. arm 2: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned 1% OPA-15406 ointment assessed until 48 hours postdose. arm 3: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned 3% OPA-15406 ointment assessed until 48 hours postdose. arm 4: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned placebo ointment assessed until 48 hours postdose. arm 5: In the multiple administration period, same subjects were treated with assigned 0.3% OPA-15406 ointment twice daily for 14 days and assessed until 48 hours post dose. arm 6: In the multiple administration period, same subjects were treated with assigned 1% OPA-15406 ointment twice daily for 14 days and assessed until 48 hours post dose. arm 7: In the multiple administration period, same subjects were treated with assigned 3% OPA-15406 ointment twice daily for 14 days and assessed until 48 hours post dose. arm 8: In the multiple administration period, same subjects were treated with assigned OPA-15406 ointment placebo twice daily for 14 days and assessed until 48 hours post dose.

Interventions: intervention 1: 0.3% OPA-15406 Ointment intervention 2: 1% OPA-15406 Ointment intervention 3: 3% OPA-15406 Ointment intervention 4: Placebo Ointment
Intervention descriptions: intervention 1: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned 0.3 % OPA-15406 ointment assessed until 48 hours postdose. In the multiple administration period, same subjects were treated with assigned 0.3% OPA-15406 ointment twice daily for 14 days and assessed until 48 hours post dose. intervention 2: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned 1 % OPA-15406 ointment assessed until 48 hours postdose. In the multiple administration period, same subjects were treated with assigned 1% OPA-15406 ointment twice daily for 14 days and assessed until 48 hours post dose intervention 3: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration period, subjects were treated with assigned 3 % OPA-15406 ointment assessed until 48 hours postdose. In the multiple administration period, same subjects were treated with assigned 3% OPA-15406 ointment twice daily for 14 days and assessed until 48 hours post dose. intervention 4: 32 subjects were randomly allocated to 4 treatment groups (8 subjects per dose). In a single administration periodriod, subjects were treated with assigned placebo ointment assessed until 48 hours postdose. In the multiple administration period, same subjects were treated with assigned placebo ointment twice daily for 14 days and assessed until 48 hours post dose.

Protocol document: