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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 2INTERVENTIONAL

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

Dose Ranging Study of ORKA-002 in Patients With Moderate-to-Severe Plaque Psoriasis (NCT07474792) is a Phase 2 interventional studying Plaque Psoriasis, sponsored by Oruka Therapeutics, Inc.. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

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.

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Plaque Psoriasis and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 160 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Plaque Psoriasis subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: 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 Who Should NOT Join This Trial: 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 Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
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

Treatments Being Tested

DRUG

ORKA-002

ORKA-002 administered by subcutaneous (SC) injection

OTHER

Placebo

Placebo administered by subcutaneous (SC) injection

Locations (20)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Total Skin & Beauty Dermatology Center, PC DBA Total Dermatology
Birmingham, Alabama, United States
First OC Dermatology Research, Inc.
Fountain Valley, California, United States
TCR Medical Corporation
San Diego, California, United States
Southern California Clinical Research
Santa Ana, California, United States
Institute of Clinical Research and Consulting, Inc., d/b/a Clinical Science Institute
Santa Monica, California, United States
Central Connecticut Dermatology Research, PLLC
Cromwell, Connecticut, United States
Driven Research LLC
Coral Gables, Florida, United States
Kuchnir Dermatology & Dermatologic Surgery
Milford, Massachusetts, United States
Henry Ford Medical Center
Detroit, Michigan, United States
Grekin Skin Institute
Warren, Michigan, United States
Associated Skin Care Specialists, PA d/b/a Minnesota Clinical Study Center
New Brighton, Minnesota, United States
Skin Specialists, PC dba Schlessinger MD
Omaha, Nebraska, United States
Icahn School of Medicine at Mount Sinai, Department of Dermatology
New York, New York, United States
WDC Cosmetic and Research, PLLC
Wilmington, North Carolina, United States
Bexley Dermatology Research
Bexley, Ohio, United States
Clear Choice Dermatology LLC
Warrenton, Oregon, United States
Modern Research Associates, PLLC
Dallas, Texas, United States
Frontier Derm Partners CRO LLC
Mill Creek, Washington, United States
Alberta DermaSurgery Centre
Edmonton, Alberta, Canada
Laser Rejuvenation Clinics Edmonton D.T. Inc.
Edmonton, Alberta, Canada

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT07474792), the sponsor (Oruka Therapeutics, Inc.), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT07474792 clinical trial studying?

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. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT07474792?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT07474792?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT07474792. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07474792. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.