rwTTNT1 is defined as the time from T-DXd initiation to initiation of subsequent therapy
To evaluate patient-reported outcomes (PROs)/ health-related quality of life (HRQoL) based on FACT-B questionnaire at 6 months after baseline. The Functional Assessment of Cancer Therapy - Breast (FACT-B) is a 37-item instrument designed to measure five domains of HRQoL in breast cancer patients: Physical, social, emotional, functional well-being as well as a breast-cancer subscale (BCS). FACT-B will be collected electronically at time points synchronized with clinic visits during the study.
To evaluate patient-reported outcomes (PROs)/ health-related quality of life (HRQoL) based on FACT-G questionnaire at 6 months after baseline. The Functional Assessment of Cancer Therapy - General (FACT-G) is a 27-item questionnaire designed to measure four domains of HRQoL in cancer patients: Physical, social, emotional, and functional well-being. FACT-G will be collected electronically at time points synchronized with clinic visits during the study.
Defined as changes in FACT-B (total score and subscale domains) at different timepoints compared to baseline. The Functional Assessment of Cancer Therapy - Breast (FACT-B) is a 37-item instrument designed to measure five domains of HRQoL in breast cancer patients: Physical, social, emotional, functional well-being as well as a breast-cancer subscale (BCS).
Defined as changes in EQ-5D (subscale domains and VAS) at different timepoints compared to baseline. EQ-5D is a standardized instrument for use as a measure of patient-reported health outcomes (Euro-QoL). The 5 health-state dimensions in the EQ-5D-5L include: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension is rated on a 5-point scale from 1 (no problem) to 5 (unable to/extreme problems). The EQ-5D-5L also includes a graded (0 to 100) vertical visual analog scale (EQ VAS) on which the participant rates his or her general state of health at the time of the assessment.
rwORR is defined as percentage of patients having complete response or partial response as best response as determined by the investigator
rwPFS is defined as time from T-DXd initiation to the date of the first source evidence for progression referenced by the clinician (e. g., radiology/ pathology report date) or the date of clinician note when no other corresponding evidence sources were documented) or death, whichever occurs first
rwOS is defined as time from T-DXd initiation to date of death
rwTTD is defined as time from T-DXd initiation to discontinuation, or death
rwTTD2 is defined as time from initiation T-DXd treatment to discontinuation of corresponding subsequent therapy, or death
rwPFS2 is defined as time from T-DXd initiation to the date of the first source evidence for the second progression referenced by the clinician (e. g., radiology/ pathology report date) or the date of clinician note when no other corresponding evidence sources were documented) or death, whichever occurs first
Safety evaluated based on type of Adverse Event (AE), intensity, causal relationship to treatment, duration, handling, outcome, and seriousness
To evaluate treatment modifications in patients treated with T-DXd in a real-world setting
Age, Education, Family status, depressive mood, diagnostic testing, HR-status, Stage IV at initial diagnosis, localization of metastases, presence or history of (in) active brain metastases, previous therapies, subsequent therapies, center characteristics, DiGA usage
rwTTNT2 is defined as time from initiation of T-DXd treatment to initiation of second next treatment, or death