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Allogeneic NK Cells

Phase 2

Refractory Rheumatoid Arthritis (RA) | Small molecule | Immunology |Artiva Biotherapeutics, Inc.|Last Updated: May 22, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLED
Total Trials1
Total Enrollment90
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06991114AlloNK®, an Allogeneic Non-genetically Modified, Cord Blood-derived NK Cell Therapy, in Combination With Rituximab, Studied in Relapsing Forms of B-cell Dependent Rheumatologic Diseases.PHASE2 RECRUITING 90Jul 9, 2025Jan 1, 2029May 22, 202652 United States, Brazil +9
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Study Endpoints
Primary Endpoints
Safety
From enrollment until the end of treatment at Week 104.

Dose Limiting toxicities assessed in a incrementing dose design.

Secondary Endpoints
Rheumatoid Arthritis: Disease Activity Score 28 (DAS28 - ESR)
Week 52
Sjögren's Disease: Improvement in Clinical EULAR Sjögren's Syndrome Disease Activity Index (ClinESSDAI)
Week 52
Idiopathic Inflammatory Myopathies: Total Improvement Score (TIS)
Week 52
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
AlloNKEXPERIMENTALAlloNK, dosed after a conditioning regimen, combined with Rituximab.
Interventions
NameTypeDescription
Allogeneic NK CellsDRUGAlloNK, dosed after a conditioning regimen, combined with Rituximab.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites52

For Subjects with Refractory Rheumatoid Arthritis (RA): * Documented diagnosis of RA, meeting the 2010 ACR/EULAR classification criteria. * Rheumatoid Factor (RF) or Anti Citrullinated Protein Antibody (ACPA) positive. * High-sensitivity C-reactive protein (hs-CRP) \> 3 mg/L or Erythrocyte Sediment...

Countries:United StatesBrazilBulgariaFranceGermanyItalyPolandPortugalRomaniaSerbiaSpain
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06991114primaryCompletionDate: changed
LOWMay 24, 2026NCT06991114studyFirstPostDate: changed