Resultados de supervivencia del cáncer colorrectal metastásico (CCRm) en una cohorte de una práctica en Medellín, Colombia
Survival Outcomes of Metastatic Colorectal Cancer (mCRC) in A Single Practice Cohort in Medellín, Colombia
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Therapy for mCRC is based on surgery, cytotoxic chemotherapy, and biologic agents. In randomized clinical trials, median progression-free survival (PFS) and overall survival (OS) hover around 10mo and 29mo, respectively. There are no published results on survival outcomes of patients with mCRC in Colombia. Objective: Describe the survival outcomes of patients with mCRC treated by Mauricio Lema in Medellín, Colombia. Methods: This is a retrospective, case series (2008-2020) of mCRC, ≥18 years old, treated with systemic therapy for metastatic disease, and ≥3-month follow-up. Stratification factors included: use of biologic (anti-VEGF or anti-EGFR) plus chemotherapy in 1st-Line (yes/no) and metastasectomy (yes/no). Survival analyses were evaluated using Kaplan- Meier curves. Results from the general population are described, and they are also discriminated against by the use of a biological agent in the first-line of systemic therapy. Results: 89 patients with mCRC were included. The Median follow-up was 35 months (IQR: 21-57). Median PFS and OS were 12.1mo (95%CI: 10.4-13.8) and 29.3mo (95%CI: 23.2-34.4), respectively. Median OS in patients receiving biologics was 28.8mo (95%CI: 22.1 – 35.6) vs 33.7mo (95%CI: 16.4 – 51.0) in the chemo-only group (p=0.01). Median OS in the metastasectomy and non-metastasectomy groups were 36.1 (95% CI: 26.5 - 45.7) and 25.0 months (95% CI: 15.4 - 34.5), respectively (NS). Conclusion: In this case series of patients’ survival outcomes were similar to thosereported in large phase III trials. A small sample size precludes any conclusion as to the impact of biologic agents on survival in this study.
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