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BG-75098

Phase 1

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

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment105
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07226349A Study of BG-75098 Alone and in Combination With Other Agents in Adults With Advanced Solid TumorsPHASE1 RECRUITING 105Dec 11, 2025Nov 1, 2028Jun 3, 202621 United States, Australia +2
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Study Endpoints
Primary Endpoints
Phase 1a: Number of Participants with Adverse Events (AEs)
From first dose to 30 days after last dose, up to approximately 12 months

Number of participants with treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs), including physical examination findings, electrocardiogram results, laboratory values, and AEs meeting protocol-defined dose-limiting toxicity (DLT) criteria.

Phase 1a: Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD) of BG-75098
Up to approximately 2 years

MTD is determined based on a target for dose-limiting toxicities. MAD is defined as the maximum administered dose, and it is used when MTD is not reached.

Phase 1a: Recommended Dose(s) for Expansion (RDFE[s]) of BG-75098 as Monotherapy and in Combination with BGB-43395 and Fulvestrant
Up to approximately 2 years

The RDFE(s) will be determined from safety, tolerability, pharmacokinetic, pharmacodynamic biomarker(s), preliminary antitumor activity, and any other relevant data that are obtained from the dose escalation phase.

Phase 1b: Objective Response Rate (ORR) as Assessed by the Investigator
Up to 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 using RECIST v1.1.

Secondary Endpoints
Phase 1a: ORR as Assessed by the Investigator
Up to approximately 2 years
Phase 1a: Duration of Response (DOR) as Assessed by the Investigator
Up to approximately 2 years
Phase 1a: Time to Response (TTR) as Assessed by the Investigator
Up to approximately 2 years
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Phase 1a, Part A: Dose Escalation, BG-75098 MonotherapyEXPERIMENTALSequential cohorts of increasing dose levels of BG-75098 will be evaluated as monotherapy.
Phase 1a, Part B: Dose Escalation, BG-75098 CombinationEXPERIMENTALSequential cohorts of increasing dose levels of BG-75098 will be evaluated in combination with BGB-43395 and fulvestrant.
Phase 1b, Cohort 1: Dose Expansion, BG-75098 CombinationEXPERIMENTALParticipants will receive BG-75098 at the recommended dose level from Phase 1a in combination with BGB-43395 and fulvestrant.
Phase 1b, Cohort 2: Dose Expansion, BG-75098 MonotherapyEXPERIMENTALParticipants will receive BG-75098 as monotherapy at the recommended dose level from Phase 1a.
Interventions
NameTypeDescription
BG-75098DRUGAdministered orally.
BGB-43395DRUGAdministered orally.
FulvestrantDRUGAdministered by intramuscular injection.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites21

Inclusion Criteria: * Participants must have measurable disease as assessed by RECIST v1.1. * Participants must have a stable Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1. * Participants must have adequate organ function. * Dose Escalation Part A: Participants with histolo...

Countries:United StatesAustraliaChinaDenmark
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Recent Changes (Last 90 Days)
LOWJun 3, 2026NCT07226349lastUpdatePostDate: changed
LOWJun 3, 2026NCT07226349lastUpdatePostDate: changed
LOWMay 28, 2026NCT07226349lastUpdatePostDate: changed
LOWMay 28, 2026NCT07226349lastUpdatePostDate: changed
LOWMay 26, 2026NCT07226349primaryCompletionDate: changed
LOWMay 24, 2026NCT07226349studyFirstPostDate: changed