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AB-101

Phase 1

Rheumatoid Arthritis | Small molecule | Immunology |Artiva Biotherapeutics, Inc.|Last Updated: Sep 3, 2024

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
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment30
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06581562Open-label Single-Center Study to Evaluate the Safety and Efficacy of Combining Rituximab and AB-101 in B-cell Associated Autoimmune Diseases.PHASE1 RECRUITING 30May 15, 2024Dec 1, 2028Sep 3, 20241 United States
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Study Endpoints
Primary Endpoints
Incidence of adverse events and relationship to study drug
From the time of consent through 104 weeks after initiation of study treatment

We will evaluate the Incidence of adverse events and relationship to study drug

Incidence of Serious Adverse Events (SAE) and causality assessment
From the time of consent through 104 weeks after initiation of study treatment

We will evaluate the Incidence of adverse events and relationship to study drug

Total hospitalizations, duration of hospitalizations through the course of the study
From the time of consent through 104 weeks after initiation of study treatment

We will evaluate the Incidence of adverse events and relationship to study drug

Secondary Endpoints
RA: Change From Baseline in DAS28 at Week 12 and 24
Week 12 through 24
PV: Change from baseline in the Pemphigus Disease Area Index (PDAI) at Week 12 and 24
Week 12 through 24
GPA / MPA: Change from baseline in the Birmingham Vasculitis Activity Score at Week 12 and 24
Week 12 through 24
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm 1EXPERIMENTALArm 1 - Subjects with Rheumatoid Arthritis
Arm 2EXPERIMENTALArm 2- Pemphigus Vulgaris
Arm 3EXPERIMENTALArm 3 - Systemic Lupus Erythematosus
Arm 4EXPERIMENTALArm 4- Subjects with Granulomatosis with polyangiitis / microscopic polyangiitis
Interventions
NameTypeDescription
AB-101DRUGSubjects in all 4 indications will receive only one cycle of treatment. Subjects with RA, PV or SLE will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2 and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 1000 mg on Day 1 and Day 15 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13 and Day 20 Subjects with GPA and MPA will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2, and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 375 mg/m2 on Day -2, Day 6, Day 13, and Day 20 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13, and Day 20 The first dose of AB-101 should be administered at least 48 hours after the last infusion of the lymphodepletion regimen.
RituximabDRUGSubjects in all 4 indications will receive only one cycle of treatment. Subjects with RA, PV or SLE will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2 and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 1000 mg on Day 1 and Day 15 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13 and Day 20 Subjects with GPA and MPA will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2, and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 375 mg/m2 on Day -2, Day 6, Day 13, and Day 20 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13, and Day 20 The first dose of AB-101 should be administered at least 48 hours after the last infusion of the lymphodepletion regimen.
CyclophosphamideDRUGSubjects in all 4 indications will receive only one cycle of treatment. Subjects with RA, PV or SLE will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2 and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 1000 mg on Day 1 and Day 15 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13 and Day 20 Subjects with GPA and MPA will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2, and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 375 mg/m2 on Day -2, Day 6, Day 13, and Day 20 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13, and Day 20 The first dose of AB-101 should be administered at least 48 hours after the last infusion of the lymphodepletion regimen.
FludarabineDRUGSubjects in all 4 indications will receive only one cycle of treatment. Subjects with RA, PV or SLE will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2 and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 1000 mg on Day 1 and Day 15 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13 and Day 20 Subjects with GPA and MPA will receive one cycle of treatment as follows: 1. Fludarabine: 25 mg/m2 on Day 1, Day 2, and Day 3. 2. Cyclophosphamide: 1000 mg/m2 on Day 3 3. Rituximab: 375 mg/m2 on Day -2, Day 6, Day 13, and Day 20 4. AB-101: 1B NK cells (AlloNK) on Day 6, Day 13, and Day 20 The first dose of AB-101 should be administered at least 48 hours after the last infusion of the lymphodepletion regimen.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: General Inclusion Criteria (applicable to subjects in all 4 studied indications) 1. Males or female subjects, ≥ 18 years of age at the time of signing informed consent. 2. Ability to understand the requirements of the study. 3. Willingness to provide written informed consent. 4...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06581562primaryCompletionDate: changed
LOWMay 24, 2026NCT06581562studyFirstPostDate: changed