Breast Cancer Trial, Recruiting

Written by an AI model from ClinicalTrials.gov eligibility criteria and checked on a sample basis. Please confirm against the original criteria.

Who might be able to join this trial:

For both groups:

• You are 18 years old or older and have been diagnosed with breast cancer that cannot be removed by surgery and/or has spread to other parts of the body, confirmed by a lab test
• Your doctor has decided to start you on one of two treatments: a drug called T-DXd (trastuzumab deruxtecan) or standard chemotherapy
• You are willing and able to sign a consent form to take part in the study

For Group 1 only:

• Your breast cancer has been tested and found to be "HER2-low" (a specific low level of a protein called HER2, confirmed by lab testing)
• You have already received chemotherapy after your cancer spread, OR your cancer came back during or within 6 months of finishing chemotherapy given after surgery

For Group 2 only:

• Your breast cancer has been tested and is hormone receptor positive (meaning it is fuelled by hormones like oestrogen or progesterone)
• Your breast cancer is either "HER2-low" or "HER2-ultralow" (very specific low levels of HER2 protein, confirmed by lab testing)
• You have already received at least one hormone-based therapy after your cancer spread
• You have NOT yet received chemotherapy after your cancer spread

Who may not be able to join:

• You are currently pregnant or breastfeeding
• You are currently taking part in, or have recently taken part in, another clinical trial where neither you nor your doctor knows which treatment you received (a "blinded" study)

Important: Always verify eligibility with the trial site directly before applying.