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Dose Ranging Study of ORKA-002 in Patients With Moderate-to-Severe Plaque Psoriasis

A Multicenter, Randomized, Double-Blinded, Placebo- Controlled, Dose-Range Finding Study to Evaluate the Efficacy, Safety, Tolerability, and Pharmacokinetics of ORKA-002 in Participants With Moderate-to-Severe Plaque Psoriasis

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07474792
Enrollment
160
Registered
2026-03-16
Start date
2026-03-19
Completion date
2029-04-01
Last updated
2026-08-10

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

Conditions

Plaque Psoriasis

Keywords

Phase 2, Plaque psoriasis, ORKA-002

Brief summary

This is a multicenter, randomized, double-blinded, placebo-controlled, dose-range finding study to evaluate the efficacy and safety of ORKA-002 in adult participants with moderate-to-severe plaque psoriasis.

Detailed description

This is a multicenter, randomized, double-blinded, placebo-controlled, dose range finding study designed to identify the optimal induction dosing regimen of ORKA-002 in approximately 160 adult participants with moderate-to-severe plaque psoriasis. The study will evaluate the efficacy and safety of 3 induction dosing regimens of ORKA-002 compared to placebo. The study will consist of 3 periods: * Screening Period * Induction Period * Post-treatment Follow-up Period

Interventions

ORKA-002 administered by subcutaneous (SC) injection

OTHERPlacebo

Placebo administered by subcutaneous (SC) injection

Sponsors

Oruka Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 79 Years
Healthy volunteers
No

Inclusion criteria

1. Participants ≥ 18 and \< 80 years of age at the time of consent 2. Have a diagnosis of plaque psoriasis for \> 6 months 3. Have moderate-to-severe chronic plaque psoriasis defined as: 1. BSA ≥ 10%, and 2. PASI ≥ 12, and 3. IGA score of ≥ 3 on a 5-point scale 4. Candidate for systemic therapy or phototherapy 5. Women of childbearing potential must have a negative pregnancy test

Exclusion criteria

1. Nonplaque forms of psoriasis (including guttate, erythrodermic, or pustular) or drug-induced psoriasis) 2. Significant history or clinical manifestation of any metabolic, other dermatological, hepatic, renal, hematologic, pulmonary, cardiovascular, gastrointestinal, neurologic, respiratory, endocrine, or psychiatric disorder, or any infectious disease 3. History of malignancy, except for non-melanoma skin cancer or cancer curatively treated ≥ 5 years, without evidence of recurrence 4. A known hypersensitivity to any components of the ORKA-002 drug product 5. Women who are breastfeeding or plan to breastfeed during the study

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Participants Achieving 100% Reduction in PASI Score at Week 16Week 16The Psoriasis Area and Severity Index Score (PASI) is an evaluation tool that combines the assessment of the severity and the area affected by psoriasis into a single score ranging from 0 (no disease) to 72 (maximum disease).
Incidence of Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse events (TEAEs) and TEAEs of of Special Interest (TEAESIs)Day 1 through Week 48Incidence of treatment-emergent adverse events (TEAEs), treatment-emergent serious adverse events (TEAEs), and treatment-emergent adverse events of special interest (TEASIs), and clinically significant changes from baseline in vital signs, clinical laboratory parameters and electrocardiograms

Secondary

MeasureTime frameDescription
Proportion of Participants Who Achieve an IGA = 0 (Clear) at Week 16Week 16The Investigator Global Assessment (IGA) documents the Investigator's assessment of the participant's psoriasis at a given time point. Overall lesions are graded for induration, erythema, and scaling. The participant's psoriasis is assessed as clear (0), almost clear (1), mild (2), moderate (3), or severe (4).
Proportion of Participants Achieving 90% Reduction in PASI Score at Week 16Week 16Psoriasis Area and Severity Index Score (PASI) is an evaluation tool that combines the assessment of the severity and the area affected by psoriasis into a single score ranging from 0 (no disease) to 72 (maximum disease).
Proportion of Participants Who Achieve an IGA=0 (Clear) or 1 (Almost Clear) at Week 16Week 16Psoriasis Area and Severity Index Score (PASI) is an evaluation tool that combines the assessment of the severity and the area affected by psoriasis into a single score ranging from 0 (no disease) to 72 (maximum disease).
Incidence of Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse events (TEAEs) and TEAEs of Special Interest (TEAESIs)Day 1 through Week 48Incidence of treatment-emergent adverse events (TEAEs), treatment-emergent serious adverse events (TEAEs), and treatment-emergent adverse events of special interest (TEASIs), and clinically significant changes from baseline in vital signs, clinical laboratory parameters and electrocardiograms

Countries

Canada, United States

Contacts

CONTACTOruka Clinical Trials Information
clinicaltrials@orukatx.com781-560-0299

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 11, 2026