NIS Study Determining Prevalence of HER2-low in Metastatic Breast Cancer Patients

Brief summary (registry, in English)

This noninterventional, multicenter,retrospective study has been proposed to estimate the prevalence, clinicopathological characteristics,treatment patterns and clinical outcomes of human epidermal growth factor receptor 2 -(HER2)low locally-advanced or metastatic breast cancer(mBC) by accurate rescoring of archived IHC-stained formalin-fixed paraffin-embedded (FFPE) slides for HER2 in patients previously identified as HER2-negative from emerging markets of international regions (non-US and non-European region) with largely unknown prevalence estimates of HER2 low mBCs. Patients with a confirmed diagnosis of HER2-negative, locally-advanced or mBC regardless of Hormone receptor (HR)status between 01 January 2019 and 31 December 2022 who progressed on any systematic anticancer therapy (eg, ET, chemotherapy, CDK4/6 inhibitor, targeted therapies other than anti-HER2, or immunotherapy) in advanced disease with availability of atleast 12 months of follow-up data (from the index date) in the medical records at the participating site, unless patient died within the first 12 months of diagnosis of locally-advanced or mBC will be enrolled in the study. The HR positive patients will be considered eligible for the study if they have received ET as adjuvant therapy in the early BC setting and progressed within 24 months. This scenario will be considered as progression on systematic treatment in the advanced or metastatic setting.

What you commit to

• Study type: Observational
• Participants enrolled: 1151
• From 23 Apr 2024 to the primary completion date, 19 May 2025
• 23 sites in 13 countries
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (23)

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