Phase I Study of DS-2741a in Healthy Volunteers and Participants With Atopic Dermatitis
Atopic Dermatitis
About this trial
This is an interventional treatment trial for Atopic Dermatitis focused on measuring Atopic Dermatitis, DS-2741a
Eligibility Criteria
Inclusion Criteria:
For Part 1 and Part 3:
- Japanese healthy male subjects.
- Age ≥20 and ≤45 years upon providing informed consent.
- Body mass index (BMI) ≥18.5 and <25.0 kg/m^2 at screening.
For Part 2:
- Japanese Male or female, Age ≥20 upon providing informed consent.
- Diagnosed with chronic atopic dermatitis (AD) at least 3 years before screening and by the criteria of Hannifin and Rajka at screening.
Exclusion Criteria:
For Part 1 and Part 3:
- Having a history of atopic dermatitis
- Having a history of hypersensitivity to drugs or other substances or being idiosyncratic
- Having alcohol or drug dependence, etc.
For Part 2:
- Having an active dermatological disease other than AD, which, in the investigator's opinion, would affect study assessments.
- Having a history of serious disease in the study potentially endangering the participant, as judged by the investigator or sub-investigator.
- Having a chronic or acute infection requiring treatment within 28 days before screening.
- Having superficial skin infections within 7 days before screening.
- Having a history of recurrent oral herpes and recurrent genital herpes.
- Having a history of parasitic infection or invasive, opportunistic infection such as histoplasmosis despite infection resolution, etc.
Sites / Locations
- Osaka Pharmacology Clinical Research Hospital
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Arm 7
Arm 8
Arm 9
Arm 10
Arm 11
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Placebo Comparator
Experimental
Experimental
Experimental
Placebo Comparator
Part 1: DS-2741a Cohort 1, 5 mg
Part 1: DS-2741a Cohort 2, 15 mg
Part 1: DS-2741a Cohort 3, 50 mg
Part 1: DS-2741a Cohort 4, 150 mg
Part 1: DS-2741a Cohort 5, 500 mg
Part 1: DS-2741a Cohort 6, 1000 mg
Part 1: Placebo
Part 2: DS-2741a Cohort 1, X mg (based on results of Part 1)
Part 2: DS-2741a Cohort 1, Y mg (based on results of Part 1)
Part 3: DS-2741a Cohort 1, Z mg (based on results of Part 1)
Part 3: Placebo
Participants will be randomized to receive a single, subcutaneous injection of DS-2741a 5 mg.
Participants will be randomized to receive a single, subcutaneous injection of DS-2741a 15 mg.
Participants will be randomized to receive a single, subcutaneous injection of DS-2741a 50 mg.
Participants will be randomized to receive a single, subcutaneous injection of DS-2741a 150 mg.
Participants will be randomized to receive a single, subcutaneous injection of DS-2741a 500 mg.
Participants will be randomized to receive a single, subcutaneous injection of DS-2741a 1000 mg.
Participants will be randomized to receive a single, subcutaneous injection of placebo.
Participants will receive a single, subcutaneous injection of DS-2741a X mg, where X mg will be based on the maximum tolerated dose identified in Part 1.
Participants will receive a single, subcutaneous injection of DS-2741a Y mg, where Y mg will be based on the maximum tolerated dose identified in Part 1.
Participants will be randomized to receive a receive a single, subcutaneous injection of DS-2741a Z mg, where Z mg will be based on the maximum tolerated dose identified in Part 1.
Participants will be randomized to receive a single, subcutaneous injection of placebo.