Enrolling by invitation

EASOFDIMBCTDS8201 for HER2-positive and HER2-low Metastatic Breast Cancer

0 criteria met from your profileSee at a glance how your profile meets each eligibility criteria.
What is being collected

Data Collection

Collected from past medical records and data - Retrospective
Who is being recruted

From 18 to 100 Years
See all eligibility criteria
How is the trial designed

Case-Control

Comparing exposures between individuals with and without disease in order to identify potential risk factors.
Observational
Study Start: May 2025
See protocol details

Summary

Principal SponsorThe First Hospital of Jilin University
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: May 25, 2025

Actual date on which the first participant was enrolled.

Breast cancer is a common type of cancer among women, with some cases being more aggressive and harder to treat due to a protein called HER2. This study focuses on a treatment called DS8201, a novel antibody-drug conjugate, which targets HER2 in patients with metastatic breast cancer. The goal is to evaluate its effectiveness and safety in real-world settings, as it has shown promising results in clinical trials. This research is important because it aims to improve treatment options for patients with HER2-positive and HER2-low metastatic breast cancer, who often face poor prognosis and limited therapy choices. In this study, participants will receive DS8201 treatment and their progress will be closely monitored. The primary outcome being measured is progression-free survival (PFS), which is the time it takes for the disease to worsen or for the patient to pass away after starting the treatment. This study also aims to identify factors that may influence the treatment's efficacy, providing valuable insights for clinical application of DS8201.

Official TitleMulticenter Real-world Study on the Efficacy and Safety of DS8201 in the Treatment of Metastatic Breast Cancer
Principal SponsorThe First Hospital of Jilin University
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

200 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Case-Control

These studies compare people who have a disease (cases) with those who don't (controls). The goal is to look back at previous exposures or risk factors to identify what might have contributed to the disease.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 100 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Criteria

Inclusion criteria: (1) age ≥18 years old; (2) breast cancer confirmed by pathological diagnosis; (3) the presence of one or more distant metastatic lesions confirmed by pathology or imaging; (4) patients had received DS8201 treatment; (5) Complete medical records, complete blood routine and liver and kidney function test results during treatment. Exclusion criteria: no history of traceable or missing clinical data.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Study Objectives

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

The First Hospital of Jilin University

Changchun, ChinaOpen The First Hospital of Jilin University in Google Maps
Enrolling by invitationOne Study Center