Active surveillance for clinical complete responders after chemoradiotherapy for oesophageal squamous cell carcinoma

Author:

De Pasqual Carlo A1,Weindelmayer Jacopo1ORCID,Gervasi Maria C1,Torroni Lorena2,Pavarana Michele3,Cenzi Daniela4,Togliani Thomas5,Rossi Roberto6,Giacopuzzi Simone1

Affiliation:

1. Department of General and Upper Gastrointestinal Surgery, University of Verona , Verona , Italy

2. Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona , Verona , Italy

3. Department of Oncology, University of Verona , Verona , Italy

4. Department of Radiology, OCM Hospital of Verona , Verona , Italy

5. Gastroenterology and Digestive Endoscopy Unit, University of Verona , Verona , Italy

6. Department of Radiation Oncology, University of Verona , Verona , Italy

Abstract

Abstract Background Guidelines on the treatment of oesophageal squamous cell carcinoma (SCC) recommend neoadjuvant chemoradiotherapy plus surgery or definitive chemoradiotherapy. The aim of this study was to evaluate the outcome of patients with a cCR after chemoradiotherapy who underwent active surveillance. Methods Patients with oesophageal SCC who were treated with chemoradiotherapy between January 2016 and June 2022 were identified from an institutional database. Survival and recurrence of patients with a cCR who underwent active surveillance were compared with those of patients who underwent planned surgery. Survival was calculated according to the Kaplan–Meier method and compared between groups using the log rank test. Results The 37 patients who underwent active surveillance were older and tumours were more often located in the middle/upper-third of the oesophagus than in the surgery group of 57 patients. Median follow-up was 28.1 (i.q.r. 17.2–47.1) months for the active surveillance group and 20 (12.9–39.1) months for the surgery group. Overall survival was comparable between the two groups, with 3-year survival rates of 50 (95% c.i. 31 to 67) and 59 (40 to 73)% for the active surveillance and surgery groups respectively (P = 0.55). Three-year progression-free survival for patients who underwent active surveillance was better than in the surgery group: 70 (43 to 85) versus 58 (40 to 72)% (P = 0.02). Overall and progression-free survival was comparable between patients in the active surveillance group and 23 patients in the surgery group who had a pCR (ypT0 N0). The overall recurrence rate was comparable between the groups: 7 of 37 (19.4%) in active surveillance group versus 16 of 49 (32.6%) in surgery group (P = 0.26). Locoregional recurrence was noted more often in the active surveillance group and systemic recurrence in the surgery group. Conclusion Active surveillance is feasible and safe for patients with oesophageal SCC who have a cCR after chemoradiotherapy.

Publisher

Oxford University Press (OUP)

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