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Esophageal CancerNCT05704530

Liquid Biopsies in Esophageal Cancer

A study testing Blood sample in people with Esophageal Cancer, run by Universitaire Ziekenhuizen KU Leuven at 4 sites in Belgium.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Esophageal Cancer
What is being tested?
Blood sample
Could I receive a placebo?
No, everyone receives an active treatment
How many people
248 participants
Where
4 sitesBelgium
Study dates
29 Mar 2023to 31 Dec 2029
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female, age > 18 years
  • New diagnosis of esophageal cancer, pathologically confirmed squamous cell carcinoma (ESCC) or adenocarcinoma (EAC)
  • Clinically staged - cT1-4 N0-2 M0 (local or locally advanced, resectable)
  • Eligible for multidisciplinary treatment as assessed by MDT
  • Able to provide informed consent (ICF) according to Good Clinical Practice and national/European regulations

Who cannot join

  • (Oligo)metastatic disease
  • Histologically or cytologically confirmed diagnosis other than squamous cell carcinoma or adenocarcinoma (eg. neuroendocrine carcinoma, lymphoma…)
  • Other active malignancies
  • Previous exposure to chemoradiation (prior to MDT)
  • Treatment plan after MDT: neoadjuvant chemotherapy with no radiation or chemoradiation with definitive intent (surgery is not planned)

Trial locations and contacts

4 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Jeroen Dekervel, MD contact

016344225

jeroen.dekervel@uzleuven.be

Filip Van Herpe, MD contact

016344225

filip.vanherpe@uzleuven.be

Belgium4 sites, 4 recruiting
  • UZA

    Antwerp

    Timon Vandamme, MD

    Recruiting
  • UZ Gent

    Ghent

    Karen Geboes

    Recruiting
  • UZLeuven

    Leuven

    Filip Van Herpe, MD

    Jeroen Dekervel, MD

    Recruiting
  • AZ Delta

    Roeselare

    Katleen Kerstens

    Jochen Decaestecker, MD

    Recruiting

Other trials in Belgium

About this study

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

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.

Read the 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.

Being tested
Blood sample
Medical subject headings
Esophageal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Blood sampleOther

    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.

Study groups in NCT05704530
Study groupRoleWhat they receive
1. primary resection then follow-upOtherScenario 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.
Receives: Other: Blood sample
2. chemoradiation followed by resection and follow-upOtherScenario 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.
Receives: Other: Blood sample
3. chemoradiation followed by resection followed by adjuvant immunotherapyOtherchemoradiation 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.
Receives: Other: Blood sample

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To assess the potency of ctDNA MRD variant allele frequency to improve clinical staging at diagnosis of esophageal cancer.

    To assess whether ctDNA concentration can significantly contribute to preoperative staging in esophageal cancer, to define a significant cut-off value of ctDNA concentration with optimal sensitivity and specificity and validate the results.

    Measured: 12 months

  2. To correlate the presence of minimal residual disease after resection as assessed by ctDNA with disease recurrence.

    To compare the two groups ctDNA positive and negative post-resection in terms of progression-free survival and overall survival (Kaplan-Meier time-to-event) and evaluate the performance of ctDNA to predict disease recurrence (Cox proportional hazards model).

    Measured: 12 months

  3. To observe the ctDNA MRD dynamics during adjuvant immunotherapy .

    To describe the dynamics of ctDNA concentration (proportion of clearance of positive ctDNA) during standard of care adjuvant immunotherapy.

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Jan 2023
  2. Study start29 Mar 2023
  3. Primary completion30 Dec 2028 (estimated)
  4. Study completion31 Dec 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
Three distinct patient groups are defined, depending on the therapeutic scenario patients undertake. Patient management is standard of care. No investigational medicinal product (IMP) is involved. Trial is considered low interventional due to addition of extra blood samples, otherwise would be observational.
Masking
None (open label)
Enrolment
248 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05704530
Sponsor's protocol ID
S67328
Status last verified
May 2026
First submitted
19 Jan 2023
Last updated
1 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Blood sample in people with Esophageal Cancer, run by Universitaire Ziekenhuizen KU Leuven at 4 sites in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 1 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Jeroen Dekervel, MD (016344225, jeroen.dekervel@uzleuven.be), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To assess the potency of ctDNA MRD variant allele frequency to improve clinical staging at diagnosis of esophageal cancer. (time frame: 12 months). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Jun 2026.

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