A Phase 3 Study of HRS-8080 Versus Treatment Chosen by Physicians in Locally Advanced and Metastatic Breast Cancer
A Multicenter, Open-label, Randomized Controlled Phase 3 Study of HRS-8080 Versus Treatment Chosen by Physicians in Locally Advanced and Metastatic Breast Cancer With Disease Progression After Previous Endocrine Therapy
1 other identifier
interventional
240
1 country
2
Brief Summary
This study is a multicenter, open-label, randomized controlled Phase 3 clinical trial. It is planned to enroll 240 female patients with locally advanced or metastatic breast cancer followed by disease progression after previous endocrine therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Jul 2025
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 9, 2025
CompletedFirst Posted
Study publicly available on registry
June 17, 2025
CompletedStudy Start
First participant enrolled
July 23, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2027
January 26, 2026
January 1, 2026
1.4 years
June 9, 2025
January 22, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Progression free survival (PFS) evaluated by the blinded independent central review (BICR).
Approximately 2 years.
Secondary Outcomes (7)
Progression free survival (PFS) evaluated by investigators.
Approximately 2 years.
Overall response rate (ORR).
Approximately 2 years.
Clinical benefit rate (CBR).
Approximately 2 years.
Duration of response (DOR).
Approximately 2 years.
Overall survival (OS).
Approximately 3 years.
- +2 more secondary outcomes
Study Arms (4)
HRS-8080 Group
EXPERIMENTALFulvestrant Group
ACTIVE COMPARATORExemestane in combination with Everolimus Group
ACTIVE COMPARATORExemestane or Anastrozole or Letrozole Group
ACTIVE COMPARATORInterventions
Exemestane tablets orally administered.
Everolimus tablets orally administered.
Anastrozole tablets orally administered.
Letrozole tablets orally administered.
Eligibility Criteria
You may qualify if:
- Women aged 18 to 75 years old (including both values).
- ECOG Physical Strength Status (PS) : 0 to 1 point.
- Patients with locally advanced or metastatic breast cancer confirmed by histology.
- Patients previously received 1-2 lines of endocrine therapy.
- Expected survival \> 6 months.
- The functional level of the organs must meet the requirements.
- Subjects that voluntarily participate in this clinical trial, be willing and able to abide by the procedures related to clinical visits and research, understand the research procedures and have signed the informed consent.
You may not qualify if:
- Patients with rapid disease progress and investigators determine that endocrine therapy is not suitable or tolerant.
- A history of severe clinical cardiovascular diseases.
- Patients with uncontrollable tumor-related pain as judged by investigators.
- Severe infection exists within 4 weeks before the first study administration.
- Patients with clinically significant endometrial abnormalities.
- Untreated active hepatitis.
- Patients known to be allergic to HRS-8080 components.
- Pregnant and lactating women, or those planning to become pregnant during the study period.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Sun Yat-sen University Cancer Center
Guangzhou, Guangdong, 510000, China
Hunan Cancer Hospital
Changsha, Hunan, 410000, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 9, 2025
First Posted
June 17, 2025
Study Start
July 23, 2025
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2027
Last Updated
January 26, 2026
Record last verified: 2026-01