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Sacituzumab Govitecan + Toripalimab as First - Line Therapy for Advanced Triple - Negative Breast Cancer and Biomarker Exploration

A Prospective, Single-arm, Multicenter Phase II Clinical Study of Sacituzumab Govitecan in Combination With Toripalimab as First-line Treatment for Advanced Triple-negative Breast Cancer and an Exploratory Study of Biomarkers for Predicting Efficacy

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06991790
Enrollment
51
Registered
2025-05-28
Start date
2025-05-01
Completion date
2028-05-01
Last updated
2025-05-28

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

Conditions

TNBC

Keywords

sacituzumab govetican, toripalimab, ADC, triple-negative breast cancer, first-line therapy, immune-checkpoint inhibitor

Brief summary

The goal of this study is to explore the efficacy and safety of sacituzumab govitecan in combination with toripalimab as first - line treatment in patients with advanced triple - negative breast cancer. The main questions it aims to answer are: 1. To investigate the efficacy and safety of sacituzumab govitecan in combination with toripalimab as first - line treatment for advanced triple - negative breast cancer. 2. To explore the biomarkers that can predict the efficacy of sacituzumab govitecan in combination with toripalimab as first - line treatment for advanced triple - negative breast cancer. Participants will: Have their progression - free survival (PFS) observed and evaluated. Have all adverse events and immune - related adverse events monitored to assess safety. Have their objective response rate measured as a secondary outcome. Have their survival period tracked as a secondary outcome. Have biomarkers associated with efficacy observed and explored as a secondary outcome.

Detailed description

1\. Research Objectives: The overall objective of this study is to explore the efficacy and safety of sacituzumab govitecan in combination with toripalimab as first - line treatment for advanced triple - negative breast cancer. Primary Objectives:1)To observe and evaluate the efficacy (progression - free survival, PFS) of sacituzumab govitecan in combination with toripalimab as first - line treatment for advanced triple - negative breast cancer under real - world conditions.2)To observe and evaluate the safety (all adverse events and immune - related adverse events) of sacituzumab govitecan in combination with toripalimab as first - line treatment for advanced triple - negative breast cancer under real - world conditions. Secondary Objectives:Objective response rate.Survival.To observe and explore biomarkers associated with efficacy. 2. Significance of the Research:Currently, chemotherapy remains the main treatment for advanced triple - negative breast cancer. However, whether it is single - agent or combination chemotherapy, the efficacy is rather poor. Improving the efficacy and safety of first - line treatment for advanced triple - negative breast cancer is an urgent problem to be solved. Both sacituzumab govitecan and toripalimab are major drugs for the treatment of advanced triple - negative breast cancer, and combination therapy may further enhance the effectiveness of treatment. At present, there is no literature reporting the efficacy and safety data of sacituzumab govitecan in combination with toripalimab as first - line treatment. This study is a prospective, single - arm, multicenter, non - interventional, observational clinical trial, aiming to observe the efficacy and safety of sacituzumab govitecan in combination with toripalimab as first - line treatment for advanced triple - negative breast cancer in the real world.

Interventions

Sacituzumab govitecan (Trodelvy): 10mg/kg, administered by intravenous infusion on day 1 and day 8. Toripalimab: 240mg, administered by intravenous infusion on day 1.

Sponsors

Peking University Cancer Hospital & Institute
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Female breast cancer patients aged 18 to 75 years old; 2. Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) score: 0 to 1; 3. Patients with histologically or cytologically confirmed advanced triple-negative breast cancer; 4. Patients who have not received systemic treatment (including chemotherapy, targeted therapy and immunotherapy) for advanced triple-negative breast cancer; 5. According to the Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 standard, having at least one measurable lesion; 6. Deciding to receive anti-tumor treatment with the combination of sacituzumab govitecan and toripalimab.

Exclusion criteria

1. Patients with symptomatic brain metastases (such as increased intracranial pressure, epilepsy, etc.) who require emergency radiotherapy or surgical intervention; 2. Patients who have previously received HER2-targeted therapy or Trop-2-targeted therapy; 3. Patients who have previously used or are currently using PD-(L)1 inhibitors and/or ADC drugs containing topoisomerase inhibitors, such as sacituzumab govitecan, Dato-DXd, etc., as well as topoisomerase inhibitors; 4. Patients who are considered by the investigator to be unsuitable for participating in this study.

Design outcomes

Primary

MeasureTime frameDescription
Progression-free Survival (PFS) as Assessed by Blinded Independent Central Review (BICR) per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1Enrollment up for approximately 36 months.PFS is defined as the time from the date of randomization until the date of objective progressive disease (PD) or death (whichever comes first).

Secondary

MeasureTime frameDescription
Overall Survival (OS)Enrollment up for approximately 53 months.OS is defined as the time from the date of randomization until death due to any cause.
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)First dose date up to 30 days post last dose, up to approximately 53 months
Objective Response Rate (ORR) as Assessed by BICR per RECIST Version 1.1Enrollment up for approximately 53 months.ORR is defined as the proportion of participants who achieve complete response (CR) or partial response (PR) that is confirmed at least 4 weeks after initial documentation of response.
Percentage of Participants Experiencing Clinically Significant Laboratory and/or Vital Sign AbnormalitiesFirst dose date up to 30 days post last dose, up to approximately 53 months

Countries

China

Contacts

Primary ContactGuohong Song, Doctor of Medicine (M.D.)
songguohong918@hotmail.com0086-88121122-2066

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026