The influence of treatment intervals on prognosis in young breast cancer patients: Insights from the French National cohort

  • 0Université Paris Cité, HeKA, INRIA Paris, Inserm, Centre de Recherche des Cordeliers, Paris, France; Surgery Department, Institut Curie, Universite Paris Cite, Paris, France.

Summary

This summary is machine-generated.

Optimizing treatment timing for breast cancer (BC) in young women significantly improves survival. Adhering to specific intervals between surgery, chemotherapy, and radiotherapy reduces recurrence and mortality risks.

Area Of Science

  • Oncology
  • Clinical Research
  • Epidemiology

Background

  • Treatment delays negatively impact cancer prognosis.
  • Optimal timing for breast cancer (BC) treatment in young women is not well-established.
  • This study analyzes treatment delays and their prognostic impact in young BC patients using French nationwide data.

Purpose Of The Study

  • To investigate the impact of treatment delays on disease-free survival (DFS) in young women diagnosed with breast cancer.
  • To identify optimal time intervals between different treatment modalities (surgery, chemotherapy, radiotherapy) in both adjuvant and neoadjuvant settings.
  • To evaluate the association between adherence to an "optimal pathway" and patient outcomes.

Main Methods

  • Analysis of the CAREPAT-YBC Cohort from the French National Healthcare System Database.
  • Inclusion of 22,093 young women (18-45 years) with breast cancer.
  • Assessment of disease-free survival (DFS) based on treatment delays in adjuvant (surgery-chemotherapy-radiotherapy) and neoadjuvant (chemotherapy-surgery-radiotherapy) settings.

Main Results

  • Optimal adjuvant chemotherapy-radiotherapy interval identified as 17-31 days; longer delays increased risk.
  • Optimal neoadjuvant chemotherapy-surgery interval was 17-31 days; intervals ≤15 days or ≥62 days were associated with poorer prognosis.
  • An "optimal pathway" combining best timing reduced the risk of recurrence or mortality by 1.2-fold.

Conclusions

  • Optimizing treatment intervals is crucial for enhancing breast cancer survival in younger patients.
  • Adherence to specific treatment timelines can significantly improve outcomes for young women with breast cancer.

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