Assessment of breast cancer optimal care timeframes in a regional and rural real-world setting: A regional cancer centre experience in Australia.

Abstract

e12614 Background: The Breast Cancer Optimal Care Pathway (Cancer Australia) is a national patient-centred guideline that seeks to standardise the management pathway for breast cancer patients and spans from early diagnosis through to survivorship. The guideline provides suggested optimal management-based timeframes including the time from general practitioner (GP) referral to specialist review (<2 weeks), time from specialist review to completion of investigations and multidisciplinary discussion (MDT) (<2 weeks), time to initiation of neoadjuvant therapy from MDT (<4 weeks) and time to surgery following completion of neoadjuvant therapy (<6 weeks). Methods: Retrospective data was obtained for patients undergoing neoadjuvant systemic therapy for newly diagnosed breast cancer between 2021 and 2023 at a regional tertiary cancer centre in Australia (Townsville University Hospital). Data included baseline patient demographics, tumour characteristics, staging, key optimal care pathway timepoints, treatment regimen and outcomes. Median and interquartile range were calculated for key timepoints. Results: Overall, 53 patients (100% female) were identified for inclusion. 10% of patients identified as Indigenous (n=5), 36% lived rurally (n=19) and 13% were treated using a tele-chemotherapy model (n=7). Receptor status was triple-negative in 20 patients (38%), hormone-positive in 17 patients (32%) and HER2-positive in 16 patients (30%). 15% of patients had stage I disease (n=8), 58% had stage II disease (n=31), 21% had stage III disease (n=11), while 6% of patients had oligometastatic stage IV disease at diagnosis (n=3). 24 patients (50%) were seen by a specialist within 2 weeks of GP referral (median: 15 days; IQR 9-19). 46 patients (87%) had a definitive management plan formulated at MDT within 2 weeks of specialist review (median: 5 days; IQR 4-9), with delays most commonly due to pending investigations (n=5; 9%). 48 patients (91%) proceeded with neoadjuvant therapy within 4 weeks of MDT (median: 14 days; IQR 11-22), with delays most commonly due to concurrent infections including COVID. 90% of patients (n=46) were ultimately commenced on neoadjuvant treatment within the 8-week optimal care timeframe from initial GP referral (median: 34 days; IQR 27-47). In comparison to patients living locally, patients residing in rural areas were less likely to achieve this target (79% v 97%, p=0.05). 83% of patients (n=43) underwent surgery within 6-weeks of completion of neoadjuvant treatment (median: 30 days; IQR 27-34). Conclusions: The neoadjuvant breast cancer optimal care timeframes were feasible to achieve in a regional and rural setting. However, further targeted research is needed to improve adherence to optimal care standards for patients from rural areas, such as the timeframe from initial referral to completion of investigations and MDT.