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A Randomized, Open-label, Phase 3 Study of Sacituzumab Govitecan Versus Treatment of Physician’s Choice in Patients With Hormone Receptor-Positive (HR+)/Human Epidermal Growth Factor Receptor 2 Negative (HER2−) (HER2 IHC0 or HER2-low [IHC 1+, IHC 2+/ISH−]) Inoperable, Locally Advanced, or Metastatic Breast Cancer and Have Received Endocrine Therapy

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502593-17-00
Acronym
GS-US-598-6168
Enrollment
428
Registered
2023-08-21
Start date
2023-09-19
Completion date
Unknown
Last updated
2025-11-24

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

Conditions

Locally advanced or metastatic hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer in patients who have received an endocrine-based regimen

Brief summary

PFS is the time from the date of randomization until the date of first objective progressive disease (PD) as assessed by blinded independent central review (BICR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1), or death from any cause, whichever comes first

Detailed description

OS is the time from randomization until the date of death from any cause, ORR is defined as the percentage of patients who have achieved a complete response (CR) or partial response (PR) that is confirmed at least 4 weeks after initial documentation of response as assessed by BICR per RECIST v1.1, Change from baseline in the physical functioning domain at Week 16, TTD of Global Health Status/QoL domain of the EORTC QLQ-C30 is defined as the time from date of randomization to the first time a patient experienced change from baseline equal or greater than the pre-specified threshold value for worsening or death, PFS is the time from the date of randomization until the date of first objective PD as assessed by the investigator per RECIST v1.1, or death from any cause, whichever comes first, ORR is defined as the percentage of patients who have achieved CR or PR that is confirmed at least 4 weeks after initial documentation of response as assessed by the investigator per RECIST v1.1, DOR is defined as the time from the first documentation of CR or PR to the earlier of the first documentation of objective PD or death from any cause (whichever comes first) as assessed by BICR and the investigator per RECIST v1.1, The incidence of adverse events (AEs) and serious adverse events (SAEs), Percentage of patients who experience clinically significant laboratory and/or vital sign abnormalities

Interventions

Sponsors

Gilead Sciences Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
PFS is the time from the date of randomization until the date of first objective progressive disease (PD) as assessed by blinded independent central review (BICR) per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1), or death from any cause, whichever comes first

Secondary

MeasureTime frame
OS is the time from randomization until the date of death from any cause, ORR is defined as the percentage of patients who have achieved a complete response (CR) or partial response (PR) that is confirmed at least 4 weeks after initial documentation of response as assessed by BICR per RECIST v1.1, Change from baseline in the physical functioning domain at Week 16, TTD of Global Health Status/QoL domain of the EORTC QLQ-C30 is defined as the time from date of randomization to the first time a patient experienced change from baseline equal or greater than the pre-specified threshold value for worsening or death, PFS is the time from the date of randomization until the date of first objective PD as assessed by the investigator per RECIST v1.1, or death from any cause, whichever comes first, ORR is defined as the percentage of patients who have achieved CR or PR that is confirmed at least 4 weeks after initial documentation of response as assessed by the investigator per RECIST v1.1, DOR i

Countries

Austria, Belgium, Czechia, France, Germany, Greece, Hungary, Italy, Poland, Portugal, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026