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BH-30643

Phase 1

NSCLC (Advanced Non-small Cell Lung Cancer) | Small molecule | Oncology |BlossomHill Therapeutics, Inc.|Trials Updated: Aug 5, 2026

BH-30643 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Nov 2024

BH-30643 target and mechanism

Molecular targetEGFR
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment675

FDA Designations

FAST_TRACK

BH-30643 clinical trials

BH-30643 · 1 trial · 1 indication

Phase 1 1
NCT06706076A Study of BH-30643 in Subjects With Locally Advanced or Metastatic NSCLC Harboring EGFR and/or HER2 MutationsNSCLC (Advanced Non-small Cell Lung Cancer)
RECRUITING675 Analytics
PHASE1RECRUITING
A Study of BH-30643 in Subjects With Locally Advanced or Metastatic NSCLC Harboring EGFR and/or HER2 Mutations
NSCLC (Advanced Non-small Cell Lung Cancer)Unlock trial analytics

Study Endpoints

Primary Endpoints

Dose-limiting toxicities (DLTs) (Phase 1, Dose Escalation)
Within the first 21 days of the first dose of BH-30643.

Assess dose-limiting toxicities (DLTs) as defined in the study protocol.

Recommended Phase 2 dose (RP2D) (Phase 1, Dose Expansion/Optimization)
Within 21 days of last participant dosed during Dose Expansion/Optimization.

Determine the RP2D for Phase 2.

Objective Response Rate (ORR) (Phase 2)
Approximately 3 years after the first participant dosed.

Determine ORR as assessed by Blinded Independent Central Review (BICR).

Secondary Endpoints

Safety
From enrollment through study completion, approximately 48 months.
Area under the plasma concentration-time curve from time zero to time of the last quantifiable concentration (AUClast) of BH-30643 for Single dose (Phase 1).
Predose and up to 24 hours postdose.
Maximum observed plasma concentration (Cmax) of BH-30643 for Single dose (Phase 1).
Predose and up to 24 hours postdose.
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 1 Monotherapy Dose Escalation and ExpansionEXPERIMENTAL* BH-30643 monotherapy for dose escalation * BH-30643 monotherapy for dose expansion/optimization at doses determined from dose escalation data
Phase 1 Combination Dose Escalation and ExpansionEXPERIMENTAL* BH-30643 combo therapy with Carboplatin/Pemetrexed for dose escalation * BH-30643 combo therapy with Carboplatin/Pemetrexed for dose expansion /optimization at doses determined from dose escalation data
Phase 2EXPERIMENTALBH-30643 administered at the RP2D dose determined in Phase 1

Interventions

NameTypeDescription
BH-30643DRUGBH-30643 will be provided as either 10 mg or 40 mg capsules or tablets. Subjects will take BH-30643 orally depending on their dose level assignment.
BH-30643 combo therapy with Carboplatin/PemetrexedDRUGBH-30643 will be provided as either 10 mg or 40 mg capsules or tablets in combo therapy with Carboplatin/Pemetrexed. Subjects will take BH-30643 orally depending on their dose level assignment. Carboplatin/Pemetrexed will be administered according to standard of care
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites42

Inclusion Criteria: * ≥ 18 years or legal adult. * Pathologically confirmed diagnosis of locally advanced or metastatic NSCLC with EGFR or HER2 mutations in the kinase domain of exons 18, 19, 20, or 21. * Has at least 1 measurable target extracranial lesion according to RECIST v1.1. * Eastern Coope...

Countries:United StatesAustraliaCanadaHong KongJapanMalaysiaSingaporeSouth KoreaTaiwan
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