Recent Updates
Recently added Catalysts

BION-1301

Phase 3

IgA Nephropathy | Small molecule | Nephrology |Novartis AG|Last Updated: Jun 16, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment486

FDA Designations

No designations recorded

Clinical trial landscape

BION-1301 · 3 trials · 3 indications

Phase 3 1Phase 1 2
NCT05852938A Study of Zigakibart in Adults With IgA NephropathyIgA Nephropathy
ACTIVE NOT_RECRUITING383 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Study of Zigakibart in Adults With IgA Nephropathy
IgA NephropathyUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from baseline in eGFR
Baseline and 104 weeks or approximately 2 years

Change from Baseline to Week 104 in eGFR using the CKD-EPI 2021 creatinine equation

Number of participants with Treatment Emergent Adverse Events (TEAEs) and treatment-emergent serious adverse events (SAEs)
Up to 276 weeks

TEAEs and SAEs are assessed throughout each participant's study participation according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE).

Change from baseline in systolic and diastolic blood pressure
Baseline and up to 276 weeks.
Change from baseline in estimated glomerular filtration rate (eGFR)
Baseline and up to 276 weeks

Secondary Endpoints

Change in proteinuria (natural log UPCR)
Baseline and 40 weeks or approximately 9 months
Annualized rate of change in eGFR
104 weeks or approximately 2 years
Effect of BION-1301 on specific clinical composite endpoints (30% eGFR reduction)
Baseline and Weeks 4, 12, 24, 40, 52, 64, 76, 88, and 104
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
BION-1301EXPERIMENTAL600mg subcutaneous administration every 2 weeks for 104 weeks
PlaceboPLACEBO_COMPARATORsubcutaneous administration every 2 weeks for 104 weeks
Part 1: BION-1301EXPERIMENTALUp to 5 cohorts with single ascending doses of BION-1301 administered by intravenous (IV) infusion in healthy volunteers.
Part 1: PlaceboPLACEBO_COMPARATORHealthy Volunteers receive a single dose of placebo administered by IV infusion.
Part 2: BION-1301EXPERIMENTALUp to 4 cohorts with multiple doses of BION-1301 administered by intravenous (IV) infusion in healthy volunteers.
Part 2: PlaceboPLACEBO_COMPARATORHealthy Volunteers receive placebo by IV infusion.
Part 3: BION-1301EXPERIMENTALTwo cohorts of participants with IgAN receive multiple doses of BION-1301 by IV infusion (Cohort 1) or SC injection (Cohort 2) at 600mg/biweekly.
Part 4 Retreatment: BION-1301EXPERIMENTALEligible participants with IgAN from Part 3 may enroll in Part 4 due to disease progression or by choice for optional retreatment and receive SC injection at 600mg/biweekly.

Interventions

NameTypeDescription
BION-1301DRUGBION-1301 Pre-Filled Syringe (PFS) 600mg subcutaneous administration every 2 weeks for 104 weeks.
PlaceboDRUGPlacebo - PFS subcutaneous administration every 2 weeks for 104 weeks.
BION-1301 Single DoseDRUGA single IV infusion infusion of BION-1301 at doses ranging from 10 to 1350 mg, administered once
Placebo Single DoseDRUGA single IV infusion of placebo
BION-1301 Multiple DosesDRUGPart 2: Multiple IV infusions of BION 1301 administered every 2 weeks (Q2W) at doses of 50 mg, 150 mg or 450 mg for up to 3 doses. Part 3: Repeated dosing of BION 1301: 450 mg IV Q2W for ≥24 weeks followed by 600 mg SC Q2W, or 600 mg SC Q2W throughout.
Placebo Multiple DosesDRUGMultiple IV infusions of placebo administered every 2 weeks for up to 3 doses
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites200

Inclusion Criteria: * Male and female participants aged ≥ 18 years at the time of signing the informed consent form (ICF) prior to initiation of any study specific activities/procedures. * Biopsy-proven IgAN diagnosed within the past 10 years prior to Screening, that, in the opinion of the Investig...

Countries:United StatesArgentinaAustraliaBelgiumBrazilCanadaChinaCroatiaCzechiaFranceGermanyGreeceIndiaIsraelItalyJapanMalaysiaMexicoSouth KoreaSpainTaiwanTurkey (Türkiye)United Kingdom
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMJul 17, 2026NCT03945318TRIAL_REMOVED: changed
MEDIUMJul 17, 2026NCT03945318TRIAL_REMOVED: changed
MEDIUMJul 17, 2026NCT03945318TRIAL_REMOVED: changed
HIGHJun 16, 2026NCT03945318Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHJun 16, 2026NCT03945318Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHJun 16, 2026NCT03945318Status: ACTIVE_NOT_RECRUITING → COMPLETED

Frequently asked questions about BION-1301

What is BION-1301 used for?

BION-1301 is an investigational small molecule being studied for IgA nephropathy (IgAN), a kidney disease. It has also been evaluated in healthy volunteers to assess safety and tolerability. The drug is in clinical development and is not yet approved for any use.

Who makes BION-1301?

BION-1301 is being developed by Novartis AG, a global pharmaceutical company traded on the New York Stock Exchange under the ticker NVS. Novartis is conducting clinical trials to evaluate the drug's safety and efficacy in IgA nephropathy.

What phase is BION-1301 in?

BION-1301 is in Phase 1 clinical development. Early trials in healthy volunteers and adults with IgA nephropathy have been completed, and a Phase 3 study of zigakibart, which is another name for BION-1301, is active but not recruiting participants.

What clinical trials is BION-1301 in?

BION-1301 has been studied in two completed Phase 1 trials: NCT03945318, which evaluated safety and tolerability in healthy volunteers and adults with IgA nephropathy, and NCT05508204, an open-label study in Japanese healthy subjects. A Phase 3 trial, NCT05852938, is active but not recruiting.

Is BION-1301 the same as zigakibart?

Yes, BION-1301 is also known as zigakibart. The Phase 3 study NCT05852938, which is active but not recruiting, is titled 'A Study of Zigakibart in Adults With IgA Nephropathy' and is being conducted by Novartis.

How does BION-1301 work?

BION-1301 is a small molecule, but its specific molecular target has not been disclosed in available clinical trial information. The drug is being investigated for its potential to treat IgA nephropathy, a condition characterized by immune complex deposition in the kidneys.