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NCT07290569PHASE2Recruiting

Dose Ranging Study of ORKA-001 in Patients With Moderate-to-Severe Plaque Psoriasis

Oruka Therapeutics, Inc.

Start Date

12/3/2025

Completion Date

12/1/2028

Summary

This is a multicenter, randomized, double-blinded, placebo-controlled, dose-range finding study to evaluate the efficacy and safety of ORKA-001 in adult participants with moderate-to-severe plaque psoriasis.

Detailed Description

This is a multicenter, randomized, double-blinded, placebo-controlled, dose ranging study designed to identify the optimal induction dosing regimen of ORKA-001 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-001 compared to placebo and will include 3 maintenance regimens. The study will consist of 4 periods: * Screening Period of up to 6 weeks * Induction Period of up to 28 weeks (Day 1 \[Baseline\] to Week 28) * Maintenance Period of up to approximately 72 weeks (Week 28 to Week 100) * Post-treatment Follow-up Period: Participants will have the option to enter the open-label extension (OLE) study. Participants who opt out of the OLE study and/or withdraw from the study must be followed for 48 weeks after the End of Treatment (EOT)/Early Termination (ET) visit.

Eligibility Criteria

Age Range: 18 years to No maximum

Inclusion Criteria: 1. Participants ≥ 18 years of age 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-001 drug product 5. Women who are breastfeeding or plan to breastfeed during the study

Interventions

DRUG

ORKA-001

OTHER

Placebo

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Conditions

Plaque Psoriasis

Locations

Oruka Therapeutics Investigative Site

Phoenix, Arizona 85032

United States

Oruka Therapeutics Investigative Site

North Little Rock, Arkansas 72117

United States

Oruka Therapeutics Investigative Site

Los Angeles, California 90024

United States

Oruka Therapeutics Investigative Site

Los Angeles, California 90045

United States

Oruka Therapeutics Investigative Site

San Diego, California 92123

United States

Oruka Therapeutics Investigative Site

Miami, Florida 33126

United States

Oruka Therapeutics Investigative Site

Rolling Meadows, Illinois 60008

United States

Oruka Therapeutics Investigative Site

Plainfield, Indiana 46168

United States

Oruka Therapeutics Investigative Site

Rockville, Maryland 20850

United States

Oruka Therapeutics Investigative Site

Kew Gardens, New York 11415

United States

Oruka Therapeutics Investigative Site

Chapel Hill, North Carolina 27516

United States

Oruka Therapeutics Investigative Site

Cleveland, Ohio 44106

United States

Oruka Therapeutics Investigative Site

Mason, Ohio 45040

United States

Oruka Therapeutics Investigative Site

Portland, Oregon 97201

United States

Oruka Therapeutics Investigative Site

Portland, Oregon 97210

United States

Oruka Therapeutics Investigative Site

Philadelphia, Pennsylvania 19104

United States

Oruka Therapeutics Investigative Site

Frisco, Texas 75033

United States

Oruka Therapeutics Investigative Site

Houston, Texas 77004

United States

Oruka Therapeutics Investigative Site

Webster, Texas 77598

United States

Oruka Therapeutics Investigative Site

Norfolk, Virginia 23502

United States

Oruka Therapeutics Investigative Site

Surrey, British Columbia V3R 6A7

Canada

Oruka Therapeutics Investigative Site

Surrey, British Columbia V3V 0C6

Canada

Oruka Therapeutics Investigative Site

Fredericton, New Brunswick E3B 1G9

Canada

Oruka Therapeutics Investigative Site

Ajax, Ontario L1S 7K8

Canada

Oruka Therapeutics Investigative Site

Markham, Ontario L3P 1X3

Canada

Oruka Therapeutics Investigative Site

Peterborough, Ontario K9J 5K2

Canada

Oruka Therapeutics Investigative Site

Montreal, Quebec HZX 2V1

Canada

Oruka Therapeutics Investigative Site

Québec, Quebec G1V 4X7

Canada

Oruka Therapeutics Investigative Site

Heidelberg, Baden-Wuerrtemberg 69120

Germany

Oruka Therapeutics Investigative Site

Frankfurt am Main, Hesse 60590

Germany

Oruka Therapeutics Investigative Site

Bad Bentheim, Lower Saxony 48455

Germany

Oruka Therapeutics Investigative Site

Kiel, Schleswig-Holstein 24105

Germany

Oruka Therapeutics Investigative Site

Badalona, Barcelona 08916

Spain

Oruka Therapeutics Investigative Site

Barcelona, Barcelona 08041

Spain

Oruka Therapeutics Investigative Site

Madrid, Madrid 28002

Spain

Oruka Therapeutics Investigative Site

Madrid, Madrid 28046

Spain