A Study of EDP1815 in Healthy Participants and Participants With Mild to Moderate Psoriasis and Atopic Dermatitis
Psoriasis, Atopic Dermatitis
About this trial
This is an interventional treatment trial for Psoriasis
Eligibility Criteria
Inclusion Criteria:
General:
Participant has a body mass index of ≥ 18 kg/m2 to ≤ 35 kg/m2 at Screening.
Healthy Volunteers:
Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring.
Mild to moderate psoriasis:
- Participant has had a confirmed diagnosis of mild to moderate plaque-type psoriasis for at least 6 months involving ≤ 10% of body surface area (BSA) (excluding the scalp).
- Participant has a minimum of 2 psoriatic lesions with at least 1 plaque in a site suitable for biopsy.
Mild to moderate atopic dermatitis:
- Mild to moderate atopic dermatitis with a minimum of 3% to a maximum of 15% BSA involvement.
- Participant has had a confirmed diagnosis of mild to moderate atopic dermatitis for at least 6 months (IGA score of 2 or 3).
- Participant has a minimum of 2 atopic dermatitis lesions with at least 1 in a site suitable for biopsy.
Exclusion Criteria:
- Female participant who is pregnant, or plans to become pregnant during the study, or breastfeeding, or sexually active with childbearing potential who is not using a medically accepted birth control method.
- Participant has received live attenuated vaccination within 6 weeks prior to Screening or intends to have such a vaccination during the course of the study.
- Participant has received any investigational drug or experimental procedure within 90 days or 5 half-lives, whichever is longer, prior to study intervention administration.
- Participant requires treatment with an anti-inflammatory drug during the study period. Paracetamol will be permitted for use as an antipyretic and/or analgesic (maximum of 4 grams/day in any 24 hour period).
- Participant has an active infection (e.g. sepsis, pneumonia, abscess) or has had an infection requiring antibiotic treatment within 6 weeks prior to Investigational Medicinal Product (IMP) administration. When in doubt, the investigator should confer with the Sponsor study physician.
Participant has renal or liver impairment, defined as:
- For healthy volunteers: i. For women, serum creatinine level ≥ 125 μmol/L; for men, ≥ 135 μmol/L, or ii. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≥ 1.5 x upper limit of normal (ULN), or iii. Alkaline phosphatase (ALP) and/or bilirubin > 1.5 x ULN
- For participants with mild to moderate atopic dermatitis or psoriasis: i. For women, serum creatinine level ≥ 125 μmol/L; for men, ≥ 135 μmol/L, or ii. ALT or AST > 2 x ULN and/or bilirubin > 1.5 x ULN
Sites / Locations
- UK-8
- UK-7
- UK-3
- UK-4
- UK-5
- UK-1
- UK-2
- UK-6
- UK-9
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Arm 7
Arm 8
Arm 9
Arm 10
Other
Other
Other
Other
Other
Other
Other
Other
Other
Other
Cohort 1
Cohort 2
Cohort 3
Cohort 4
Cohort 5
Cohort 6
Cohort 7
Cohort 8
Cohort 9
Cohort 10
12 healthy volunteers; 8 on EDP1815, 4 on placebo. Dose=1/10th of HED, capsule, once daily, 15 days
12 healthy volunteers; 8 on EDP1815, 4 on placebo. Dose= 1 x HED, capsule, once daily, 15 days
12 subjects with mild to moderate psoriasis; 8 on EDP1815, 4 on placebo. Dose= 1 x HED, capsule, once daily, 29 days
24 subjects with mild to moderate psoriasis; 16 on EDP1815, 8 on placebo. Dose= 5 x HED capsule, once daily, 29 days
24 subjects with mild to moderate atopic dermatitis; 16 on EDP1815, 8 on placebo. Dose= 5 x HED, mini-tablets in capsule, once daily, 29 days
24 subjects with mild to moderate psoriasis; 16 on EDP1815, 8 on placebo. Dose=5 x HED, mini-tablets in capsule, once daily, 29 days.
24 subjects with mild to moderate atopic dermatitis; 16 on EDP1815, 8 on placebo. Dose= 5 x HED, capsule, once daily, 56 days
24 subjects with mild to moderate psoriasis; 16 on EDP1815, 8 on placebo. Dose= 8 x HED, tablet, once daily, 56 days
24 subjects with mild to moderate psoriasis; 16 on EDP1815, 8 on placebo. Dose= 2 x HED, capsule, once daily, 56 days
24 subjects with mild to moderate atopic dermatitis; 16 on EDP1815, 8 on placebo. Dose= 4 x HED, capsule, once daily, 56 days