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BG-C477

Phase 1

Advanced Solid Tumors | Small molecule | Oncology |BeOne Medicines Ltd.|Last Updated: Aug 3, 2026

Target and mechanism

Molecular targetCEA
Target classTumor-associated Antigen
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment310

FDA Designations

No designations recorded

Clinical trial landscape

BG-C477 · 1 trial · 1 indication

Phase 1 1
NCT06596473A Study of BG-C477 in Participants With Advanced Solid TumorsAdvanced Solid Tumors
RECRUITING310 Analytics
PHASE1RECRUITING
A Study of BG-C477 in Participants With Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase 1a: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)
From first dose of the study drug(s) to 30 days after the last dose (up to approximately 2 years)

Number of participants with AEs and SAEs, including findings from abnormal laboratory assessments, and that meet protocol-defined dose-limiting toxicity (DLT) criteria or protocol-defined Adverse Event of Clinical Interest (AECI) criteria.

Phase 1a: Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD)
Approximately 1 year

MTD is defined as the highest dose evaluated for which estimated toxicity rate is the closest to the target toxicity rate. MAD is defined as the highest dose administered if MTD is not reached.

Phase 1a: Recommended Dose(s) for Expansion (RDFE[s]) of BG-C477
Approximately 1 year

RDFE of BG-C477 monotherapy will be determined based upon available data.

Phase 1b: Overall Response Rate (ORR)
Approximately 2 years

ORR is defined as the percentage of participants with best overall response of complete response (CR) or partial response (PR), as assessed by the investigator per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1.

Phase 1b: Recommended Phase 2 Dose (RP2D) of BG-C477
Approximately 2 years

RP2D of BG-C477 alone and in combination with anticancer agents will be determined based upon available data.

Secondary Endpoints

Phase 1a: ORR
Approximately 1 year
Phase 1a and 1b: Duration of Response (DOR)
Approximately 2 years
Phase 1a and 1b: Disease Control Rate (DCR)
Approximately 2 years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 1a: BG-C477 Monotherapy Dose EscalationEXPERIMENTALSequential cohorts of increasing dose levels of BG-C477 will be evaluated as monotherapy.
Phase 1a: BG-C477 Monotherapy Safety ExpansionEXPERIMENTALSelected dose levels that have been determined to be safe in Phase 1a dose escalation will be further evaluated in monotherapy.
Phase 1b Part A: BG-C477 Monotherapy Expansion and Dose OptimizationEXPERIMENTALParticipants with selected advanced solid tumors will be evaluated at different dose levels of RDFEs identified in Phase 1a.
Phase 1b Part B: Combination Therapy ExpansionEXPERIMENTALSequential cohorts of increasing dose levels of BG-C477 will be evaluated in combination with anticancer agents, including chemotherapy or tislelizumab.

Interventions

NameTypeDescription
BG-C477DRUGAdministered intravenously.
TislelizumabDRUGAdministered intravenously.
ChemotherapyDRUGAdministered in accordance with relevant local guidelines and/or prescribing information.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites58

Inclusion Criteria: * Participants must sign the informed consent form (ICF) and be capable of giving written informed consent * Participants must consent to provide an archival tumor tissue sample or a fresh baseline biopsy * Phase 1a (Dose Escalation): Histologically confirmed advanced, metastati...

Countries:United StatesAustraliaChinaJapanMalaysiaNew ZealandSouth KoreaThailand
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumors")

Recent Changes (Last 90 Days)

LOWAug 3, 2026NCT06596473lastUpdatePostDate: changed
LOWJul 8, 2026NCT06596473lastUpdatePostDate: changed
LOWJul 8, 2026NCT06596473lastUpdatePostDate: changed
LOWJun 22, 2026NCT06596473lastUpdatePostDate: changed
LOWJun 22, 2026NCT06596473lastUpdatePostDate: changed

Frequently asked questions about BG-C477

What is BG-C477 used for?

BG-C477 is an investigational small molecule being developed for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities. The drug is being studied in a clinical trial that is actively recruiting participants.

What does BG-C477 target?

BG-C477 targets CEA, a tumor-associated antigen. CEA is a protein that is often overexpressed on the surface of certain cancer cells. By targeting this antigen, BG-C477 is designed to interact with cancer cells that express CEA, which is relevant to its potential use in advanced solid tumors.

Who is developing BG-C477?

BG-C477 is being developed by BeOne Medicines Ltd., a biopharmaceutical company listed on the stock exchange under the ticker symbol ONC. The company is conducting clinical research on this drug candidate for the treatment of advanced solid tumors.

What phase is BG-C477 in?

BG-C477 is currently in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory agencies for commercial use. The ongoing Phase 1 trial is designed to evaluate the drug in participants with advanced solid tumors.

What clinical trials is BG-C477 in?

BG-C477 is being studied in a Phase 1 clinical trial with the identifier NCT06596473. This trial is titled 'A Study of BG-C477 in Participants With Advanced Solid Tumors' and is currently recruiting participants. The trial is being conducted in multiple countries, including the United States, Australia, China, Japan, Malaysia, New Zealand, South Korea, and Thailand.

Is BG-C477 the same as other drugs?

BG-C477 is a distinct investigational drug candidate developed by BeOne Medicines Ltd. It is a small molecule that targets CEA, a tumor-associated antigen. No alternative names for BG-C477 have been disclosed in the available information.