Table of contents
- Overview of the studies
- Study design and phases
- Who can take part
- What the trials measure
- Details of the two trials
- What these studies may mean for patients
Overview of the studies
Two clinical trials are studying HALOBETASOL PROPIONATE in pediatric subjects with moderate to severe plaque psoriasis.[1][1] Both studies use topical treatment, which means the medicine is applied to the skin.[1][1]
The trials are designed to learn about safety, how much of the treatment gets into the body, and whether it may cause HPA axis suppression, which means a change in the body’s hormone control system.[1][1]
Study design and phases
Both studies are open-label, so the people in the study and the researchers know what treatment is being used.[1][1] They are also multicenter, meaning they are carried out at more than one study site.[1][1]
In the source data, each study is described as Phase 4 and also as Phase 2 in the European Union.[1][1] This means the studies are being reported with phase labels that depend on the region or study framework used in the record.[1][1]
Who can take part
The target population in both trials is pediatric subjects, which means children and adolescents.[1][1] The condition being studied is moderate to severe plaque psoriasis.[1][1]
Each study lists an enrollment of 45 participants, so the planned study size is small and focused.[1][1]
What the trials measure
The main outcomes are centered on three questions. First, the studies measure safety of the topical lotion when used once daily.[1][1] Second, they measure systemic exposure, which means how much of the medicine is found in the blood after skin application.[1][1]
Third, the trials assess the potential for HPA axis suppression after once-daily use.[1][1] In simple terms, researchers want to know whether the treatment changes the body’s normal hormone signaling.[1][1]
The brief summaries also show different measurement periods. One study looks at safety over 8 weeks, systemic exposure over 4 weeks, and HPA axis suppression over 8 weeks.[1] The other study uses the same timing pattern for these outcomes.[1]
Details of the two trials
The first trial, 2024-520058-39-00, is authorised and studies topically applied IDP-122 lotion in pediatric subjects with moderate to severe plaque psoriasis.[1] The intervention is listed as Bryhali, and the study includes 45 participants.[1]
The second trial, 2024-520057-20-00, is completed and studies topically applied IDP-118 lotion in the same patient group.[1] The intervention is listed as Duobrii, and this study also includes 45 participants.[1]
Both studies are interventional, which means the researchers are giving a treatment and then measuring the results.[1][1]
What these studies may mean for patients
For families, these trials are mainly about learning whether topical treatment with HALOBETASOL PROPIONATE can be used safely in younger patients with more serious plaque psoriasis.[1][1] The focus is not only on skin improvement, but also on whether the treatment stays mostly on the skin or enters the body in a way that matters.[1][1]
Because the studies check hormone-related effects, they aim to give a clearer picture of how the treatment behaves in children and adolescents over several weeks of use.[1][1]



