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Atacicept

Phase 3

IgA Nephropathy | Monoclonal antibody | Nephrology |Vera Therapeutics, Inc.|Last Updated: Jun 26, 2026

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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment376
FDA Designations
BREAKTHROUGH_THERAPYACCELERATED_APPROVALPRIORITY_REVIEW
Clinical trial landscape

Atacicept · 4 trials · 9 indications

Phase 3 1Phase 2 3
NCT04716231Atacicept in Subjects With IgA NephropathyIgA Nephropathy
ACTIVE NOT_RECRUITING376 Analytics
PHASE3ACTIVE NOT_RECRUITING
Atacicept in Subjects With IgA Nephropathy
IgA NephropathyUnlock trial analytics
Study Endpoints
Primary Endpoints
Change from baseline in urine protein to creatinine ratio (UPCR)
36 Weeks

UPCR based on 24 hour urine collection

AE profile and results of routine clinical and laboratory tests
Baseline until end of study: 52 + 26 Weeks

Incidence of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), adverse events of special interest (AESIs), study drug discontinuation due to TEAEs

Percent reduction in urine protein to creatinine ratio (UPCR)
Baseline, Week 36

Changes in proteinuria based on UPCR from 24 hour urine samples at baseline versus week 36

Evaluate the effect of atacicept on Gd-IgA1 in patients with IgAN
Up to 24 weeks

Gd-IgA1 levels through Week 24

Incidence of adverse events observed during the dosing period
Baseline until end of study up to week156

Patient incidence of reported Adverse Events (AEs)

Secondary Endpoints
Annualized rate of change in estimated glomerular filtration rate (eGFR)
52 and 104 Weeks
Changes from baseline estimated glomerular filtration rate (eGFR).
Baseline, Week 36, Week 52
Change in disease-specific antibodies
Baseline through 52 Weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Atacicept Dose 150mgEXPERIMENTALAtacicept 150mg once weekly subcutaneous (SC) injections
Placebo to match Atacicept (Part C/D)PLACEBO_COMPARATORPlacebo to match Atacicept once weekly subcutaneous (SC) injection
IgAN or IgAVNEXPERIMENTALAdult and pediatric patients with biopsy proven IgAN or IgAVN with varied severity of proteinuria and kidney function beyond what is currently included in most clinical trials. Adults with post-transplant IgAN recurrence are also included.
pMNEXPERIMENTALAdults with biopsy-proven pMN associated with anti-PLA2R antibodies at low risk of spontaneous remission, or experiencing recurrent or resistant disease.
Primary Nephrotic Syndrome (MCD/FSGS)EXPERIMENTALAdults with biopsy-proven primary MCD or FSGS and evidence of anti-nephrin antibodies. Children with frequently relapsing, steroid-dependent, or non-genetic steroid-resistant nephrotic syndrome with evidence of anti-nephrin antibodies.
Atacicept Arm 1EXPERIMENTALAtacicept dose A administered subcutaneous (sc) injection monthly
Atacicept Arm 2EXPERIMENTALAtacicept dose B administered subcutaneous (sc) injection monthly
Atacicept Arm 3EXPERIMENTALAtacicept dose C administered subcutaneous (sc) injection monthly
Atacicept Arm 4EXPERIMENTALAtacicept dose D administered subcutaneous (sc) injection weekly
Atacicept Arm 5EXPERIMENTALAtacicept dose E administered subcutaneous (sc) injection weekly for 24 weeks, followed by monthly sc injections
Atacicept 150mg once weekly subcutaneous (SC) injectionEXPERIMENTALOther Names: VT-001
Interventions
NameTypeDescription
AtaciceptBIOLOGICALOnce weekly subcutaneous (SC) injections by prefilled syringe
Placebo to match AtaciceptOTHEROnce weekly subcutaneous (SC) injections by prefilled syringe
Atacicept 150 mgDRUGThe atacicept drug product is available as a ready to use injection solution in the following prefilled syringe (PFS) that is composed of: \*BD Hypak™ SCF™ Barrel Glass barrel 1ml long with staked needle 27G ½" 5B with Rigid Needle Shield BD260 \*BD SCF™ Stopper 1ml long W4023 Flurotec
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Eligibility Criteria
Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Key Inclusion Criteria: * Must have the ability to understand and sign a written informed consent form * Male or female of ≥18 years of age * Total urine protein excretion ≥1.0 g per 24-hour or urine protein to creatinine ratio (UPCR) ≥1.0 mg/mg based on a 24-hour urine sample during the Screening ...

Countries:United States
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Recent Changes (Last 90 Days)
LOWJun 26, 2026NCT06983028Enrollment: 200 → 250
LOWJun 26, 2026NCT06983028Enrollment: 200 → 250
MEDIUMJun 22, 2026NCT06674577Enrollment: 476 → 750
MEDIUMJun 22, 2026NCT06674577Enrollment: 476 → 750
LOWMay 26, 2026NCT06983028primaryCompletionDate: changed
LOWMay 26, 2026NCT06674577primaryCompletionDate: changed
MEDIUMMay 26, 2026NCT07020923Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWMay 26, 2026NCT04716231primaryCompletionDate: changed
LOWMay 24, 2026NCT06983028studyFirstPostDate: changed
LOWMay 24, 2026NCT07020923studyFirstPostDate: changed
LOWMay 24, 2026NCT06674577studyFirstPostDate: changed
LOWMay 24, 2026NCT04716231studyFirstPostDate: changed