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Clinical Trial 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.


Clinical Trial 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. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05704530
Study type Interventional
Source Universitaire Ziekenhuizen KU Leuven
Contact Jeroen Dekervel, MD
Phone 016344225
Email jeroen.dekervel@uzleuven.be
Status Recruiting
Phase N/A
Start date March 29, 2023
Completion date December 31, 2026

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