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A Study of BPI-16350 in Combination With Fulvestrant in Patients With HR+ and HER2- Locally Advanced, Recurrent or Metastatic Breast Cancer

A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Study to Compare Fulvestrant Plus BPI-16350 or Plus Placebo in Patients With HR+, HER2- Locally Advanced, Recurrent or Metastatic Breast Cancer With Disease Progression Following Endocrine Therapy

Status
UNKNOWN
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05433480
Enrollment
274
Registered
2022-06-27
Start date
2022-05-25
Completion date
2025-07-31
Last updated
2023-07-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Brief summary

This is a phase III clinical trial to evaluate the efficacy and safety of BPI-16350 in combination with Fulvestrant versus placebo combined with Fulvesrant in Patients who have HR positive and HER2 negative locally advanced,recurrent or metastatic breast cancer with disease progression following endocrine therapy.

Interventions

BPI-16350 400 mg, orally once daily

DRUGplacebo

Placebo 400 mg, orally once daily

DRUGFulvestrant

Fulvestrant 500 mg intramuscular injection on day 1 and day 15 for the first cycle and then on day 1 for every cycle until progressive disease

Sponsors

Betta Pharmaceuticals Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Has the pathologically-confirmed diagnosis of locally advanced, recurrent or metastatic, HR positive, HER2 negative Breast Cancer * One previous line of chemotherapy for advanced/metastatic disease is allowed * Disease Progression following endocrine therapy * Have postmenopausal status * Have 1 of the following, as defined by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1: measurable disease or nonmeasurable bone-only disease * ECOG: 0\ 1 * Adequate organ function

Exclusion criteria

* Previous treatment with cytotoxic drugs within 4 weeks before enrollment * Previous treatment with endocrine or small molecule drug tyrosine kinase inhibitor TKI within 2 weeks before enrollment * Patients who received prior treatment with any CDK4/6 inhibitor, everolimus or fulvestant * HER2 positive * Patients with major surgery within 4 weeks, severe or unstable systemic disease, unstable/symptomatic CNS metastasis, other malignant tumors, ILD, clinical significant cardiac disease, bleeding or embolic disease, active infectious disease, conditions affecting drug swallow and absorption, etc * Pregnancy or lactation * Other conditions considered not appropriate to participate in this trial by the investigators

Design outcomes

Primary

MeasureTime frameDescription
Investigator-assessed PFSup to 3 yearsThe PFS time is measured from the date of randomization to the date of objective progression or the date of death due to any cause, whichever is earlier.

Secondary

MeasureTime frameDescription
ORRup to 3 yearsThe proportion of patients with CR or PR according to RECIST v1.1
DCRup to 3 yearsThe proportion of patients with CR, PR, or SD according to RECIST v1.1
DORup to 3 yearsThe time from the date of first evidence of a CR or PR to the date of objective progression or death from any cause, whichever is earlier
CBRup to 3 yearsThe proportion of patients with CR, PR, or SD ≥6 months according to RECIST v1.1
IREC-assessed PFSup to 3 yearsThe PFS time is measured from the date of randomization to the date of objective progression or the date of death due to any cause, whichever is earlier.
AEs and SAEsup to 3 yearsNumber of Participants With adverse events (AEs) and serious adverse events (SAEs) Incidence, nature, and severity of adverse events graded according to the NCI CTCAE v5.0
EORTC QLQ-C30up to 5 yearsChanges in scores from baseline using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30)
Evaluate the pharmacokinetics of BPI-16350Up to 3 cycles(each cycle is 28 days)Based on blood plasma concentration.
OSup to 5 yearsThe time from the date of randomization to the date of death from any cause

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026