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A Phase 3 study of KHK4827 in Subjects with Palmoplantar Pustulosis

A Phase 3, Placebo-Controlled, Double-Blind Comparative Study of KHK4827 with an Open-Label Extension in Subjects with Palmoplantar Pustulosis

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080224783
Enrollment
120
Registered
2019-07-16
Start date
2019-08-10
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Palmoplantar Pustulosis

Interventions

Sponsors

Kyowa Kirin Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Subject has had a diagnosis of palmoplantar pustulosis for at least 24 weeks as of the time of informed consent. 2)Subject has a PPPASI total score >=12 and a PPPASI severity score of pustules/vesicles on the palms or soles >=2 both at the pre-examination and enrollment examination; 3)Subject inadequately responded to any one or combination of the following therapies before informed consent: - Topical corticosteroids - Topical vitamin D3 - Phototherapy - Etretinate

Exclusion criteria

Exclusion criteria: 1) Subject has a diagnosis of plaque psoriasis, pustular psoriasis, drug-induced palmoplantar pustulosis, or pompholyx; 2) Subject has an improvement in PPPASI total score of >=4 points during the screening period; 3) Subject has a history or evidence of psychiatric disorder or alcohol/drug abuse that, in the opinion of the investigator or subinvestigator, may compromise the safety of the subject because of participation in the study or may interfere with assessments and procedures in the study or study completion; 4) Subject has a past or current history of suicidal ideation (severity of 4 or 5) or any suicidal behavior at enrollment, as assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS); 5) Subject has severe depression with a PHQ-8 total score of >=15 at enrollment

Design outcomes

Primary

MeasureTime frame
efficacy Change from baseline in Palmoplantar Pustulosis Area and Severity Index (PPPASI) total score at Week 16

Secondary

MeasureTime frame
efficacy - Change from baseline in Palmoplantar Pustulosis Severity Index (PPP-SI) total score at Week 16. - Achievement of PPPASI-50 response at Week 16

Countries

Japan

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026