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ORKA-001

Phase 2

Plaque Psoriasis | Small molecule | Dermatology |Oruka Therapeutics, Inc.|Last Updated: Aug 17, 2026

Target and mechanism

Molecular targetIL-23p19
Target classCytokine
ModalitySmall molecule

Also known as ORKA-001 Induction Dose

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials3
Total Enrollment480

FDA Designations

No designations recorded

Clinical trial landscape

ORKA-001 · 4 trials · 2 indications

Phase 2 3Phase 1 1
NCT07449702An Open-Label Extension Study of ORKA-001 in Participants With Plaque PsoriasisPlaque Psoriasis
RECRUITING240 Analytics
NCT07290569Dose Ranging Study of ORKA-001 in Patients With Moderate-to-Severe Plaque PsoriasisPlaque Psoriasis
ACTIVE NOT_RECRUITING160 Analytics
NCT07090330ORKA-001 Versus Placebo in Patients With Moderate-to-Severe Plaque PsoriasisPlaque Psoriasis
ACTIVE NOT_RECRUITING80 Analytics
PHASE2RECRUITING
An Open-Label Extension Study of ORKA-001 in Participants With Plaque Psoriasis
Plaque PsoriasisUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
Dose Ranging Study of ORKA-001 in Patients With Moderate-to-Severe Plaque Psoriasis
Plaque PsoriasisUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
ORKA-001 Versus Placebo in Patients With Moderate-to-Severe Plaque Psoriasis
Plaque PsoriasisUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of Treatment-emergent Adverse Events (TEAEs), Treatment-emergent Serious Adverse Events (TESAEs), and TEAEs of Special Interest (TEAESIs)
Day 1 through Week 144

Incidence of treatment adverse events, treatment-emergent serious adverse events, treatment adverse events of special interest, and potential clinically significant changes from baseline in vital signs, clinical laboratory parameters and electrocardiograms.

Proportion of Participants Achieving 100% Reduction in PASI Score at Week 16
Week 16

The 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).

Number and frequency of Treatment-Emergent Adverse Events [Safety and Tolerability]
Day 1 through one year

Incidence of treatment-emergent adverse events (TEAEs) and clinically significant changes from baseline in vital signs, electrocardiograms (ECGs), clinical laboratory parameters, and physical examinations.

Secondary Endpoints

Proportion of Participants Maintaining PASI100 in the Subset of Participants Meeting the Criterion at Baseline of OLE
Day 1 through Week 96
Proportion of Participants Maintaining PASI90 in the Subset of Participants Meeting the Criterion at Baseline of OLE
Day 1 through Week 96
Proportion of Participants Maintaining Investigator's Global Assessment (IGA) 0 in the Subset of Participants Meeting the Criterion at Baseline of OLE
Day 1 through Week 96
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ORKA-001 Once Yearly (High Dose)EXPERIMENTALParticipants will receive ORKA-001 once a year per OLE protocol.
ORKA-001 Once Yearly (Low Dose)EXPERIMENTALParticipants will receive ORKA-001 once a year per OLE protocol.
ORKA-001 Twice YearlyEXPERIMENTALParticipants will receive ORKA-001 every 6 months per OLE protocol.
No DrugNO_INTERVENTIONParticipants will receive no drug until protocol defined PASI response criterion is met.
(Induction Period - Arm 1) ORKA-001EXPERIMENTALParticipants will receive 37.5 mg ORKA-001 per protocol Induction regimen.
(Induction Period - Arm 2) ORKA-001EXPERIMENTALParticipants will receive 300 mg ORKA-001 per protocol Induction regimen.
(Induction Period - Arm 3) ORKA-001EXPERIMENTALParticipants will receive 600 mg ORKA-001 per protocol Induction regimen.
(Induction Period - Arm 4) PlaceboPLACEBO_COMPARATORParticipants will receive Placebo per protocol Induction regimen.
(Maintenance Period - Arm 1) ORKA-001EXPERIMENTALParticipants will receive 300 mg ORKA-001 per protocol Maintenance regimen, based on protocol defined response.
(Maintenance Period - Arm 2) ORKA-001EXPERIMENTALParticipants will receive 600 mg ORKA-001 per protocol Maintenance regimen, based on protocol defined response.
(Maintenance Period - Arm 3) PlaceboPLACEBO_COMPARATORParticipants will receive Placebo per protocol Maintenance regimen, based on protocol defined response.
(Induction Period) ORKA-001EXPERIMENTALParticipants will receive ORKA-001 per protocol Induction regimen.
(Induction Period) PlaceboPLACEBO_COMPARATORParticipants will receive Placebo per protocol Induction regimen.
ORKA-001EXPERIMENTALParticipants will receive subcutaneous injection of ORKA-001 at either 300 mg, 600 mg or 1200 mg.
PlaceboPLACEBO_COMPARATORParticipants will receive a subcutaneous injection of placebo comparator.

Interventions

NameTypeDescription
ORKA-001DRUGORKA-001 administered by subcutaneous (SC) injection
PlaceboOTHERPlacebo administered by subcutaneous (SC) injection
ORKA-001 Induction DoseDRUGORKA-001 Induction Dose, administered by subcutaneous (SC) injection
ORKA-001 Maintenance DoseDRUGORKA-001 Maintenance Dose, administered by subcutaneous (SC) injection
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites26

Inclusion Criteria: 1. Signed informed consent by participants from previous trial choosing to transition into the OLE. 2. Participants who have successfully completed the preceding trial. 3. For women of childbearing potential, must have a negative urine pregnancy test at Baseline visit. 4. For wo...

Countries:United StatesCanadaGermanySpainNew Zealand
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Recent Changes (Last 90 Days)

MEDIUMAug 17, 2026NCT07290569Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 17, 2026NCT07290569Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWAug 5, 2026NCT07449702lastUpdatePostDate: changed
LOWJul 2, 2026NCT07290569lastUpdatePostDate: changed
LOWJul 2, 2026NCT07449702lastUpdatePostDate: changed
LOWJul 2, 2026NCT07090330primaryCompletionDate: changed
LOWJul 2, 2026NCT07290569lastUpdatePostDate: changed
LOWJul 2, 2026NCT07449702lastUpdatePostDate: changed
LOWJul 2, 2026NCT07090330primaryCompletionDate: changed
LOWJul 2, 2026NCT07290569lastUpdatePostDate: changed
LOWJul 2, 2026NCT07449702lastUpdatePostDate: changed
LOWJul 2, 2026NCT07090330primaryCompletionDate: changed
LOWJul 2, 2026NCT07290569lastUpdatePostDate: changed
LOWJul 2, 2026NCT07449702lastUpdatePostDate: changed
LOWJul 2, 2026NCT07090330primaryCompletionDate: changed
LOWJun 2, 2026NCT07290569lastUpdatePostDate: changed
LOWJun 2, 2026NCT07449702lastUpdatePostDate: changed
LOWJun 2, 2026NCT07290569lastUpdatePostDate: changed
LOWJun 2, 2026NCT07449702lastUpdatePostDate: changed
LOWJun 2, 2026NCT07290569lastUpdatePostDate: changed

Frequently asked questions about ORKA-001

What is ORKA-001 used for?

ORKA-001 is an investigational small molecule being developed for the treatment of moderate-to-severe plaque psoriasis. It is also being studied in healthy volunteers to assess its safety and tolerability. The drug is currently in clinical development and has not been approved by regulatory authorities.

What does ORKA-001 target?

ORKA-001 targets IL-23p19, a subunit of the cytokine interleukin-23. By targeting this molecule, the drug aims to modulate the inflammatory pathway involved in plaque psoriasis. This mechanism is being evaluated in clinical trials to determine its efficacy and safety in patients.

Who is developing ORKA-001?

ORKA-001 is being developed by Oruka Therapeutics, Inc., a biopharmaceutical company. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with plaque psoriasis and in healthy volunteers.

What phase is ORKA-001 in?

ORKA-001 is in Phase 2 clinical development. It has completed a Phase 1 trial in healthy volunteers and is currently being evaluated in Phase 2 trials for moderate-to-severe plaque psoriasis. The drug is investigational and has not received regulatory approval.

What clinical trials is ORKA-001 in?

ORKA-001 is being studied in several clinical trials, including NCT07090330, a Phase 2 placebo-controlled trial in patients with moderate-to-severe plaque psoriasis, and NCT07290569, a Phase 2 dose-ranging study. An open-label extension study, NCT07449702, is also recruiting participants. A Phase 1 trial in healthy volunteers, NCT06698939, has been completed.

Is ORKA-001 the same as ORKA-001 Induction Dose?

Yes, ORKA-001 is also known as ORKA-001 Induction Dose. This alternative name may be used in clinical trial contexts to refer to the initial dosing regimen of the drug. Both names refer to the same investigational small molecule being developed for plaque psoriasis.