Spots Global Cancer Trial Database for Liquid Biopsies in Esophageal Cancer

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Trial Identification

Brief Title: Liquid Biopsies in Esophageal Cancer

Official Title: Personalized Multimodal Treatment for Resectable Esophageal Cancer by Detecting Minimal Residual Disease Using Circulating Tumor DNA: a Multicentric Prospective Study

Study ID: NCT05704530

Conditions

Esophageal Cancer

Interventions

Blood sample

Study Description

Brief Summary: Purpose of this study is to determine the value of liquid biopsies, e.g. testing of minimal residual disease (MRD) by using liquid biopsies to measure circulating tumour DNA (ctDNA) at diagnosis and during the multimodal and multidisciplinary curative-intent treatment of resectable esophageal cancer.

Detailed Description: Multicentric, retrospective and prospective components. Retrospective collection of leftover tissue from standard of care biopsies or resection specimens and prospective collection of additional blood samples for study-specific analyses at specific timepoints, at the same time as routine labs are foreseen. No additional venipunctures are expected. Three distinct patient groups are defined, depending on the therapeutic scenario patients undertake: Scenario 1: primary resection then follow-up - Study-specific liquid biopsies will be collected in 98 patients, at the time of routine labs. Samples will be acquired before resection, at 6-8 weeks, 6 and 12 months after resection. Scenario 2: chemoradiation followed by resection and follow-up - Study-specific liquid biopsies will be collected in 50 patients. Samples will be acquired before the start of chemoradiation, before surgery, 6-8 weeks, 6 and 12 months after surgery. A subgroup of patients will undertake adjuvant immunotherapy and will constitute Group 3. Timing of sampling will be adjusted accordingly as per study flowcharts. Scenario 3: chemoradiation followed by resection followed by adjuvant immunotherapy - Study-specific liquid biopsies will be collected in 100 patients. Samples will be acquired before the start of chemoradiation, before surgery, 6-8 weeks after surgery and during adjuvant immunotherapy every 3 months including a sample at the end of treatment. Patient management is standard of care. No investigational medicinal product (IMP) is involved. Specific clinicopathological variables will be collected in a RedCap electronic Case Report Form and analysed as per statistical analysis plan.