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BG-C9074

Phase 3

Epithelial Ovarian Cancer | Small molecule | Oncology |BeOne Medicines Ltd.|Trials Updated: Sep 16, 2026

BG-C9074 development status

Highest phase Phase 3
Registered trials 2 across 1 sponsor since Jan 2024

BG-C9074 target and mechanism

Molecular targetB7-H4
Target classAdc
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials2
Total Enrollment908

FDA Designations

No designations recorded

BG-C9074 clinical trials

BG-C9074 · 2 trials · 4 indications

Phase 3 1Phase 1 1
NCT07811271Efficacy and Safety of BG-C9074 With Bevacizumab Compared With Bevacizumab in Adults With Ovarian, Fallopian Tube, or Primary Peritoneal CancersEpithelial Ovarian Cancer
NOT YET_RECRUITING600 Analytics
PHASE3NOT YET_RECRUITING
Efficacy and Safety of BG-C9074 With Bevacizumab Compared With Bevacizumab in Adults With Ovarian, Fallopian Tube, or Primary Peritoneal Cancers
Epithelial Ovarian CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression-Free survival (PFS) assessed by Blinded Independent Central Review (BICR)
Up to 5 years

PFS is defined as the time from randomization to the date of disease progression by BICR based on Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 or death, whichever occurs first.

Phase 1a: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)
Approximately 3 years

Number of participants with AEs and SAEs (as graded by the National Cancer Institute-Common Terminology Criteria for Adverse Events \[NCI-CTCAE\] Version \[v\] 5.0),, including findings from physical examinations, electrocardiograms (ECGs), laboratory assessments, and that meet protocol-defined dose-limiting toxicity criteria.

Phase 1a: Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD) of BG-C9074
Approximately 18 months

Defined as the highest dose evaluated for which the estimated toxicity rate is closest to the target toxicity rate of 28% or the highest dose administered, respectively

Phase 1a: Recommended Dose for Expansion (RDFE) of BG-C9074.
Approximately 18 months

The potential RDFE(s) of BG-C9074 alone and in combination with tislelizumab will be determined based on the MTD or MAD, taking into consideration the long-term tolerability, PK, pharmacodynamics, preliminary antitumor activity, and any other relevant data, as available

Phase 1b: Overall Response Rate (ORR) as monotherapy and in combination with tislelizumab
Approximately 3 years

ORR is defined as the percentage of participants with best overall response (BOR) of complete response (CR) or partial response (PR) assessed by the investigator using RECIST v1.1.

Phase 1b: Recommended Phase 2 dose (RP2D) of BG-C9074 as monotherapy and in combination with bevacizumab or tislelizumab
Approximately 30 months

The RP2D of BG-C9074 will be determined based on safety, PK, pharmacodynamics, preliminary antitumor activity, and other relevant data, as available.

Secondary Endpoints

Overall Survival (OS)
Up to 5 years
PFS, as Assessed by Investigator
Up to 5 years
PFS2, as Assessed by Investigator
Up to 5 years
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm A: BG-C9074 + BevacizumabEXPERIMENTALBG-C9074 will be administered first, followed by bevacizumab.
Arm B: BevacizumabACTIVE_COMPARATORBevacizumab will be administered alone.
Phase 1a: Part A (Monotherapy Dose Escalation)EXPERIMENTALBG-C9074 monotherapy dose escalation
Phase 1a: Part B (Monotherapy Safety Expansion)EXPERIMENTALBG-C9074 dose levels that have been determined to be safe and tolerable in Part A will be investigated.
Phase 1a: Part C (Combination Therapy Dose Escalation)EXPERIMENTALBG-C9074 plus tislelizumab combination at the recommended dose for expansion (RDFE).
Phase 1a: Part D (Japan Cohort)EXPERIMENTALA separate cohort in Japan will evaluate the safety of BG-C9074 monotherapy in Japanese participants with select solid tumors
Phase 1b: Monotherapy Dose ExpansionEXPERIMENTALThe monotherapy dose expansion phase will begin once the BG-C9074 monotherapy RDFE and dosing schedule have been determined from Parts A and B in Phase 1a.
Phase 1b: Combination Therapy Dose Expansion (BG-C9074 plus tislelizumab)EXPERIMENTALThis arm will assess BG-C9074 plus tislelizumab as first-line therapy in select solid tumors after completion of the dose escalation phase.
Phase 1b: Combination Therapy Dose Expansion (BG-C9074 plus bevacizumab)EXPERIMENTALThis arm will assess BG-C9074 plus bevacizumab in select solid tumors participants after establishing the recommended monotherapy dose and schedule.

Interventions

NameTypeDescription
BG-C9074DRUGAdministered by Intravenous infusion
BevacizumabDRUGAdministered by Intravenous infusion
TislelizumabDRUGadministered by intravenous infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo

Inclusion Criteria: 1. Able to provide a signed and dated written informed consent prior to any study-specific procedures, sampling, or data collection. 2. Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1. 3. Participants must have a histologically confirmed diagnosis of epithelial ...

Countries:United StatesAustraliaBrazilChinaJapan
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Recent Changes (Last 90 Days)

LOWSep 16, 2026NCT06233942lastUpdatePostDate: changed
LOWSep 16, 2026NCT06233942lastUpdatePostDate: changed
LOWSep 10, 2026NCT07811271NEW_TRIAL: changed
LOWSep 10, 2026NCT07811271NEW_TRIAL: changed

Frequently asked questions about BG-C9074

What is BG-C9074?

BG-C9074 is an investigational small molecule antibody-drug conjugate being developed by BeOne Medicines Ltd. for advanced solid tumors and epithelial ovarian cancer. It is in Phase 1 clinical development and has not been approved by the FDA. It is being studied both as a single agent and in combination with other anticancer therapies.

What does BG-C9074 target?

BG-C9074 targets B7-H4, a protein in the B7 immune checkpoint family. As an antibody-drug conjugate, BG-C9074 is designed to deliver a cytotoxic payload to cells expressing B7-H4. The Phase 1a/1b trial is biomarker-selected, enrolling patients whose tumors express the target.

Who makes BG-C9074?

BG-C9074 is being developed by BeOne Medicines Ltd., which trades on the Nasdaq under the ticker ONC. BeOne Medicines is the sponsor of the clinical program evaluating BG-C9074 in advanced solid tumors and in ovarian, fallopian tube, and primary peritoneal cancers.

What phase is BG-C9074 in?

BG-C9074 is in Phase 1 development for advanced solid tumors, with a Phase 3 trial planned in ovarian, fallopian tube, and primary peritoneal cancers. The Phase 3 study is not yet recruiting. BG-C9074 is investigational and has not been approved by the FDA for any indication.

What clinical trials is BG-C9074 in?

BG-C9074 is being evaluated in two registered trials. NCT06233942 is a Phase 1a/1b first-in-human study in advanced solid tumors that is currently recruiting in the United States, Australia, Brazil, China, and Japan. NCT07811271 is a Phase 3 trial in ovarian, fallopian tube, or primary peritoneal cancers that is not yet recruiting.

What is BG-C9074 used for in epithelial ovarian cancer?

BG-C9074 is being studied in epithelial ovarian cancer, along with fallopian tube and primary peritoneal cancers. A Phase 3 trial, NCT07811271, will compare BG-C9074 plus bevacizumab against bevacizumab alone in adult women with these cancers. The trial is not yet recruiting and BG-C9074 remains investigational.