Table of contents
- Overview of the trial
- Who can join the study
- Study design and treatment groups
- What the study measures
- Trial status and size
- Patient-friendly terms
Overview of the trial
The available trial is studying prurigo nodularis, a skin condition with severe itching, in adults.[1] It is a phase 2 study, which means it is an early efficacy study that also keeps checking safety.[1] The trial is designed to see whether 3-[(3AS,6AR)-5-{5-CHLORO-2-[(1-METHYL-1H-PYRAZOL-4-YL)AMINO]PYRIMIDIN-4-YL}-3A-METHYLHEXAHYDROPYRROLO[3,4-C]PYRROL-2(1H)-YL]-3-OXOPROPANENITRILE can improve symptoms compared with placebo.[1]
Who can join the study
The trial data say that the study is for adult participants with prurigo nodularis.[1] No other entry details are provided in the source data, so the exact rules for joining are not listed here.[1]
Study design and treatment groups
This is an interventional study, meaning researchers give a treatment and then compare results between groups.[1] It is described as randomized, so participants are assigned to study groups by chance.[1] It is also double-blind, which means neither the participants nor the study team know who receives the study drug or placebo during the trial.[1]
The study is placebo-controlled, so one group receives placebo and the other receives 3-[(3AS,6AR)-5-{5-CHLORO-2-[(1-METHYL-1H-PYRAZOL-4-YL)AMINO]PYRIMIDIN-4-YL}-3A-METHYLHEXAHYDROPYRROLO[3,4-C]PYRROL-2(1H)-YL]-3-OXOPROPANENITRILE.[1] It is also dose-ranging, which means the study is checking treatment amounts to help understand which dose may be useful.[1] The intervention list includes placebo and 120 mg oral study drug.[1]
What the study measures
The primary outcome is the percent change from baseline in the weekly average of the Peak pruritus-numeric rate scale (PP NRS) at Week 16.[1] In simple words, the study is checking whether itching becomes better over 16 weeks.[1]
The source data do not list other outcomes, so the main measured result in the available information is the itch score at Week 16.[1]
Trial status and size
The trial status is Authorised.[1] The planned enrollment is 135 participants.[1] This gives a small-to-moderate study size for an early-stage trial.[1]
Patient-friendly terms
Baseline means the starting point before treatment begins.[1] Weekly average means the score is looked at over time, not just on one day.[1] Placebo means a look-alike treatment without active substance, used for fair comparison.[1] Randomized means group assignment is done by chance.[1] Double-blind means the study is set up so expectations do not influence the results.[1]



