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BION-1301

Chinook Therapeutics, Inc. · Phase 3 active Biologic

BION-1301 is a FGFR4 inhibitor monoclonal antibody Biologic drug developed by Chinook Therapeutics, Inc.. It is currently in Phase 3 development for Hepatocellular carcinoma (HCC), FGFR4-positive. Also known as: Zigakibart.

BION-1301 is a monoclonal antibody that targets and inhibits FGFR4 (fibroblast growth factor receptor 4) to reduce hepatocellular carcinoma cell growth and survival.

BION-1301 is a monoclonal antibody that targets and inhibits FGFR4 (fibroblast growth factor receptor 4) to reduce hepatocellular carcinoma cell growth and survival. Used for Hepatocellular carcinoma (HCC), FGFR4-positive.

Likelihood of approval
61.3% vs 58.3% industry baseline
If approved by FDA: likely 2028–2030
Steps remaining: NDA/BLA submission
Confidence: High
Why this estimate
  • Baseline phase 3 → approval rate +58.3pp
    Industry-wide phase 3 drugs reach approval ~58.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • Oncology Phase 3 boost +3.0pp
    Oncology Phase 3 trials have higher approval rates (~61%) than the cross-industry average due to clearer endpoints and FDA oncology pathway.
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2028–2030
EMA EU 2029–2031 +0.7 yr
MHRA GB 2029–2031 +0.7 yr
Health Canada CA 2029–2032 +0.9 yr
TGA AU 2029–2032 +1.2 yr
PMDA JP 2029–2032 +1.5 yr
NMPA CN 2030–2033 +2.3 yr
MFDS KR 2029–2032 +1.4 yr
CDSCO IN 2029–2033 +1.8 yr
ANVISA BR 2030–2033 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameBION-1301
Also known asZigakibart
SponsorChinook Therapeutics, Inc.
Drug classFGFR4 inhibitor monoclonal antibody
TargetFGFR4 (Fibroblast Growth Factor Receptor 4)
ModalityBiologic
Therapeutic areaOncology
PhasePhase 3

Mechanism of action

BION-1301 binds to FGFR4, a receptor overexpressed in hepatocellular carcinoma, blocking FGF19-FGFR4 signaling that drives tumor proliferation and survival. By inhibiting this pathway, the drug aims to slow or stop cancer cell growth. This approach is particularly relevant in HCC where FGF19-FGFR4 axis activation is a common oncogenic driver.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about BION-1301

What is BION-1301?

BION-1301 is a FGFR4 inhibitor monoclonal antibody drug developed by Chinook Therapeutics, Inc., indicated for Hepatocellular carcinoma (HCC), FGFR4-positive.

How does BION-1301 work?

BION-1301 is a monoclonal antibody that targets and inhibits FGFR4 (fibroblast growth factor receptor 4) to reduce hepatocellular carcinoma cell growth and survival.

What is BION-1301 used for?

BION-1301 is indicated for Hepatocellular carcinoma (HCC), FGFR4-positive.

Who makes BION-1301?

BION-1301 is developed by Chinook Therapeutics, Inc. (see full Chinook Therapeutics, Inc. pipeline at /company/chinook-therapeutics-inc).

Is BION-1301 also known as anything else?

BION-1301 is also known as Zigakibart.

What drug class is BION-1301 in?

BION-1301 belongs to the FGFR4 inhibitor monoclonal antibody class. See all FGFR4 inhibitor monoclonal antibody drugs at /class/fgfr4-inhibitor-monoclonal-antibody.

What development phase is BION-1301 in?

BION-1301 is in Phase 3.

What are the side effects of BION-1301?

Common side effects of BION-1301 include Hyperphosphatemia, Fatigue, Nausea, Diarrhea.

What does BION-1301 target?

BION-1301 targets FGFR4 (Fibroblast Growth Factor Receptor 4) and is a FGFR4 inhibitor monoclonal antibody.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing