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Colorectal Cancer Stage IVNCT04157322

Plasma 5hmC Signatures as a Marker of Colorectal / Appendiceal Peritoneal Metastasis

An observational study of Colorectal Cancer Stage IV and Colorectal Cancer Metastatic, run by University of Chicago at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

Patients with peritoneal metastasis of colorectal or high grade appendiceal origin who are candidates for cytoreductive surgery with HIPEC (hyperthermic intraperitoneal chemotherapy) will be enrolled in this study. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
prospective single arm biomarker (plasma cell-free DNA hydroxymethylation) study
How many people
55 participants
Where
1 siteUnited States
Study dates
26 Aug 2019to 31 Oct 2027
Phase
Observational
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

Study population: Adult patients with peritoneal metastasis of colorectal or high grade appendiceal origin who are candidates for cytoreductive surgery with hyperthermic intraperitoneal chemotherapy

Who may be able to join

  • Histologic proof of colorectal adenocarcinoma or high grade appendiceal tumors (appendiceal adenocarcinoma or ex-goblet adenocarcinoma Tang B or C).
  • Age ≥ 18 years. III. Patients with known peritoneal metastasis (PM) who are candidates for complete cytoreduction and HIPEC. Known PM - diagnosed previously by diagnostic laparoscopy / laparotomy or clear radiological evidence of PM.
  • Neoadjuvant chemotherapy permitted. V. The patient is able to provide informed consent. VI. The patient is planned to undergo his / her postoperative surveillance at UCM, as this study's protocol requires multiple clinic visits.
  • No evidence of systemic metastasis.
  • -

Who cannot join

  • Vulnerable subjects will not participate in this study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The University of Chicago

    Chicago, Illinois, 60637

Other trials in United States

About this study

Official title: 5-hydroxymethylation Signatures in Plasma Circulating Cell-free DNA as Markers for Tumor Burden and Recurrence in Appendiceal and Colorectal Peritoneal Metastasis

Patients with peritoneal metastasis of colorectal or high grade appendiceal origin who are candidates for cytoreductive surgery with HIPEC (hyperthermic intraperitoneal chemotherapy) will be enrolled in this study. Blood collection for measurements of plasma cell-free DNA hydroxymethylation signatures will be performed at different time points, before and after surgery, in order to determine if plasma hydroxymethylation signatures are more sensitive than conventional tumor markers in identifying clinically detectable recurrence at 1 year after surgery.

Read the detailed description

This will be a prospective single arm biomarker (plasma-free DNA 5-hydroxymethylation) study. Fifty-five Adult patients with peritoneal metastases of colorectal and appendiceal origin who are candidates for a curative surgery and fulfill the inclusion criteria will be offered to participate in this study. In addition to the postoperative standard of care oncological surveillance of these patients which includes periodic physical examinations, cross sectional imaging studies (CT or MRI) and blood work for conventional tumor markers, serial measurements of plasma hydroxymethylation signatures will be performed. We will use a model developed in a separate pilot study to identify recurrent peritoneal metastasis based on 5hmC signatures. As part of this study, blood collection for measurements of plasma hydroxymethylation signatures of target genes will be performed at seven time points:

  • Just before surgery (During the preoperative clinic visit or at the operating room).
  • 5-7 days after surgery (just before hospital discharge).
  • 6 weeks after surgery (first postoperative clinic visit).
  • 3 months after surgery (second postoperative clinic visit).
  • 6 months after surgery (third postoperative clinic visit).
  • 9 months after surgery (fourth postoperative clinic visit).
  • 12 months after surgery (fifth postoperative clinic visit). Standard of care surveillance elements that include patient history and physical examination, conventional blood biomarkers (CEA, CA 19-9 and CA 125) and cross sectional imaging of the chest, abdomen and pelvis will be undertaken simultaneously at similar time points. We will then compare the sensitivities of DNA hydroxymethylation signatures and conventional blood biomarkers in diagnosing clinically detectable recurrence at 1 year after surgery. We hypothesize that plasma hydroxymethylation signatures have higher sensitivity in identifying clinically detectable recurrence when compared with conventional tumor markers (CEA, CA 19-9 and CA 125).
Being tested
prospective single arm biomarker (plasma cell-free DNA hydroxymethylation) study
Medical subject headings
Colorectal Neoplasms, Appendiceal Neoplasms

What participants receive

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

  • prospective single arm biomarker (plasma cell-free DNA hydroxymethylation) studyDiagnostic test

    Blood draw

What is being measured

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

  1. clinically detectable recurrence at 1 year after surgery.

    1. Clear radiological evidence of recurrent disease.
    2. Histopathological proof (by means of endoscopy, imaging guided biopsy or diagnostic surgery) of recurrent disease.
    3. A new lesion revealed by physical examination

    Measured: 5 years

Timeline

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

  1. First posted8 Nov 2019
  2. Study start26 Aug 2019
  3. Primary completion31 Oct 2027 (estimated)
  4. Study completion31 Oct 2027 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
55 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04157322
Sponsor's protocol ID
IRB19-0913
Status last verified
Dec 2025
First submitted
6 Nov 2019
Last updated
3 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Colorectal Cancer Stage IV and Colorectal Cancer Metastatic, run by University of Chicago at 1 site in United States.

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 1 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: under way, not looking for participants, as of the sponsor's last update on 3 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

clinically detectable recurrence at 1 year after surgery. (time frame: 5 years). 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 3 Dec 2025.

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