Adjusting guselkumab dosing schedules for adults with plaque psoriasis
Official title: Real-Life Evaluation of Guselkumab Dosing Interval Adjustments. SPAcing-GUS
Run by Centre Hospitalier Universitaire de Nice · NCT07430319 · Data updated 2026-11-12
This project will see if adults with plaque psoriasis who are doing well on guselkumab can safely have their injections spaced farther apart than nine weeks.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Centre Hospitalier Universitaire de Nice Academic / other |
| Drugs / interventions | guselkumab, methotrexate |
| Locations | 1 site (Nice, Alpes Maritimes) |
| Status | Recruiting |
| Started | October 16, 2025 |
| Main results expected | April 16, 2026 |
| Study ends | April 16, 2026 |
| Registry record updated | February 24, 2026 |
| Trial ID | NCT07430319 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with cutaneous plaque psoriasis who are already receiving guselkumab with dosing intervals exceeding nine weeks and who have PASI and/or IGA scores recorded during visits are the ideal candidates.
✕Probably not a fit
Patients receiving guselkumab mainly for joint involvement, or whose dosing was extended because of surgery, pregnancy, or infection, or who lack PASI/IGA assessments are unlikely to gain useful insights from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is an observational, real-world study of adult patients receiving guselkumab for cutaneous plaque psoriasis, focusing on cases where dosing intervals have already been extended beyond nine weeks. Investigators will collect clinical scores (PASI and IGA) and treatment histories to describe durability of response after interval prolongation and reasons for extension. Patients treated primarily for joint disease or whose extension was driven by surgery, pregnancy, or infection are excluded to keep the analysis focused on dermatologic response. The design builds on prior findings that some "super-responders" can tolerate longer intervals, and aims to document outcomes in routine clinical practice.
Why it matters
Potential benefit: If successful, this work could support less frequent injections for some patients, reducing clinic visits, cost, and treatment burden while maintaining skin control.
How similar studies have gone: The GUIDE trial suggested that "super-responders" could extend guselkumab dosing to 16-week intervals, so this study seeks to document similar interval adjustments in routine care.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * .Adult patients receiving guselkumab for cutaneous psoriasis. 2. * Guselkumab treatment with dosing intervals exceeding 9 weeks. Exclusion Criteria: * Patients receiving guselkumab primarily for joint involvement. * Patients for whom guselkumab dosing was extended due to surgery, pregnancy, or infection. * Patients for whom the PASI or IGA score was not assessed during visits
Where it's running
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CHU de Nice
Nice, Alpes Maritimes, France Recruiting
Study contacts
- Study coordinator: Thierry PASSERON
- Email: passeron.t@chu-nice.fr
- Phone: 0492036225
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.