About this trial
This is a first-in-human, Phase 1/1b, 4-part study that includes the evaluation of safety, tolerability, pharmacokinetics (PK), and immunogenicity of BCX17725 when administered via single and multiple doses in healthy adult participants (Parts 1 and 2), and multiple doses in adult participants with Netherton syndrome (Part 3). In Part 4, the effectiveness, safety, and tolerability of BCX17725 when administered via multiple IV and/or SC doses through 12 weeks will be evaluated in adult and adolescent participants with Netherton syndrome.
Eligibility criteria
Qualifiers
Male or non-pregnant, non-lactating female aged 18 to 55 years, inclusive (Parts 1 and 2), 18 to 65 years, inclusive (Part 3), or 12 to 65 years, inclusive (Part 4)
Confirmed diagnosis of Netherton syndrome (Parts 3 and 4)
IGA score of ≥ 3 (Parts 3 and 4) and IASI score of ≥ 16 (Part 4)
BMI between 18 and 30 kg/m², inclusive (Parts 1 and 2)
Disqualifiers
None
Trial design
Treatments tested in this trial
- BCX17725
- Placebo
Treatment groups
6
Treatment groupsSee each treatment group below.