under enrollment for primary endpoint analysis

This is an observational study to discover risk factors of chemotherapy-induced peripheral neuropathy (CIPN) in 350 patients with early stage breast cancer undergoing taxane-based chemotherapy at two main sites (University of North Carolina at Chapel Hill (UNC) Hospital, including Rex Hospital, and the University of Alabama at Birmingham (UAB) Hospital). The primary purpose of this study to explore patient- and procedure-based variables that identify patients at risk for developing CIPN during chemotherapy.

Chemotherapy-induced peripheral neuropathy is common and provokes pain, poor QoL, and loss of independence, as well as increases the risk of falls and opioid addiction. Beyond the inciting agents, risk factors for CIPN are not understood or systematically evaluated in clinical practice, precluding prevention. Therefore, a clinical decision tool to predict an individual patient's risk of neuropathy remains a critical unmet need. A diagnostic test that predicts CIPN risk in this clinical context would provide an essential clinical-decision tool to guide treatment and post-treatment care in breast cancer, prevent CIPN occurrence, and improve patient outcomes.

Investigators' pilot data uncovered a strong association between cellular senescence and CIPN. In this prospective, observational study of participants with early-stage breast cancer, the investigators will assess the contribution of senescence and clinical variables. The investigators will determine the ability of these factors to identify patients at risk for CIPN during chemotherapy and up to one year after the last dose of taxane-based chemotherapy. This study will employ both patient- and clinician reported CIPN scoring systems.

Inclusion Criteria:

Study participants must meet all of the following inclusion criteria to participate in the study:

• Adult female study participants (≥18 years) with newly diagnosed early-stage (stages I III) non-metastatic breast cancer receiving neoadjuvant or adjuvant chemotherapy that includes paclitaxel or docetaxel
• Study participants must be capable and willing to provide informed consent, and be willing and able to complete the study questionnaires during the study

Exclusion Criteria:

Study participants who fulfill any of the following criteria will be excluded:

• Patients with metastatic breast cancer
• History of other cancers (except squamous and basal cell carcinoma)
• Autoimmune disorders
• Presence of major active infection for which antibiotics and/or antivirals are prescribed within the last 14 days (chronic or acute, eg, sepsis, HIV, pneumonia, active COVID infection)
• Pregnant women
• Participation in an additional study at the time of enrollment where the intervention could potentially alter CIPN risk (unless in the control arm)

enrollment is based on the biological sex due to the nature of the disease

Adult female study participants (≥18 years) with newly diagnosed early-stage (stages I III) non-metastatic breast cancer receiving neoadjuvant or adjuvant chemotherapy that includes paclitaxel or docetaxel