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Colon CancerDECONCT01882660

Pre-operative Decitabine in Colon Cancer: a Proof of Principle Study

A study testing Decitabine in people with Colon Cancer, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 1 site in Netherlands.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Background of the study: Colon cancer is the second leading cause of cancer-related death world wide. Although patients presenting with early disease (stage I-III) can be cured, prognosis varies from 90% in stage I to 50-80% in stage II and III. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colon Cancer
What is being tested?
Decitabine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteNetherlands
Study dates
Jul 2013to Jan 2018
Phase
Interventional
Are there results?
None posted in the registry

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

  • Biopsy proven colon cancer or high suspicion of colon cancer on a previous endoscopy.
  • Planned endoscopy.
  • Age ≥ 18yr.
  • ECOG/ WHO performance 0-2.
  • Written informed consent.
  • Patients with biopsy proven colon cancer who will undergo primary tumor resection.
Show all 13Show fewer
  • Age ≥ 18yr.
  • ECOG/ WHO performance 0-2.
  • Adequate bone marrow function (ANC>1500/mm3, hemoglobin>9g/dL (which may be obtained by transfusions), platelets>100,000)
  • Adequate hepatic function (AST and ALT <2.5x upper limit of normal (ULN)).
  • Adequate renal function (Serum creatinine ≤1.5 x ULN or calculated creatinine of >50ml/min)
  • Women of child-bearing age must be willing to use adequate contraception and have negative serum or urine pregnancy test within 3 days prior to registration.
  • Written informed consent.

Who cannot join

  • 1. Any psychological, familial, sociological or geographical condition potentially hampering adequate informed consent or compliance with the study protocol.
  • In- and exclusion criteria second part:
  • In order to participate in the second part of the study - treatment with decitabine - a subject must meet all of the following criteria:
  • Known hypersensitivity to decitabine or its additives.
  • Surgery not planned according to time frame of the study,
  • Other systemic or local treatment of the primary tumor in the waiting time until surgery.
  • Administration of any experimental drug within 60 days prior to the first dose of decitabine.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Academic Medical Center

    Amsterdam, 1105 AZ

Other trials in Netherlands

About this study

Background of the study: Colon cancer is the second leading cause of cancer-related death world wide.

Although patients presenting with early disease (stage I-III) can be cured, prognosis varies from 90% in stage I to 50-80% in stage II and III. Therefore, prevention of metastases after early disease is of utmost importance. Derepression of Wnt targets may provide a novel target for therapy.

Objectives: The primary objective of the study is to assess in patients with primary colon cancer whether short-course pre-operative treatment with decitabine can increase Wnt target gene expression as measured in resected tumors compared to pretreatment biopsies. The secondary objective of the study is to assess in patients with primary colon cancer whether short-course pre-operative treatment with decitabine can revert CpG methylation and induce more favorable tumor characteristics as measured in resected tumors compared to pretreatment biopsies. The tertiary objective is to compare changes in Wnt target gene expression, CpG methylation and tumor characteristics for Wnt methylated and nonmethylated tumors as measured in resected tumors compared to pretreatment biopsies and identify new stratification markers.

Read the detailed description

Rationale: Colon cancer is the second leading cause of cancer-related death world wide.

Although patients presenting with early disease (stage I-III) can be cured, prognosis varies from 90% in stage I to 50-80% in stage II and III. Therefore, prevention of metastases after early disease is of utmost importance. Extensive studies of the Wnt signal cascade have elucidated its role in colorectal cancer development and proliferation. Several well-known targets of the Wnt-cascade, like DKK1, APCDD1 and AXIN2, serve as feedback inhibitors and likely prevent pathway hyperactivation. Therefore, loss of these control mechanisms, for example due to repression of Wnt targets by CpG island methylation, serves as a potent proliferative signal. Recently, we identified a subset of colon cancers that are typified by CpG island methylation of specific Wnt target genes and have a poor prognosis. Moreover, in preclinical studies we showed that derepression of Wnt-targets by the demethylating agent decitabine resulted in tumor growth suppression. Thus, derepression of Wnt targets may provide a novel target for therapy. Objectives: The primary objective of the study is to assess in patients with primary colon cancer whether short-course pre-operative treatment with decitabine can increase Wnt target gene expression as measured in resected tumors compared to pretreatment biopsies. The secondary objective of the study is to assess in patients with primary colon cancer whether short-course pre-operative treatment with decitabine can revert CpG methylation and induce more favorable tumor characteristics as measured in resected tumors compared to pretreatment biopsies. The tertiary objective is to compare changes in Wnt target gene expression, CpG methylation and tumor characteristics for Wnt methylated and nonmethylated tumors as measured in resected tumors compared to pretreatment biopsies and identify new stratification markers.

Study design: Interventional study.

Study population:

Patients > 18 yr old with histopathologically proven or high suspicion of colon cancer.

Intervention: In patients with proven colon cancer, five extra biopsies will be taken from the tumour during endoscopy to determine CpG methylation of Wnt target genes in fresh tumor samples. Next, these patients will pre-operatively receive decitabine as a single intravenous infusion at a dose of 45 mg/m2 over 6 hr. After resection, Wnt target gene expression and CpG methylation of Wnt target genes will again be determined in fresh tumor samples.

Main study parameters: The primary study parameter is Wnt target gene expression (APCDD1, AXIN2, DKK1, LGR5 and ASCL2). Secondary study parameters are Wnt target and CIMP gene methylation, beta-catenin localization, proliferation (Ki-67), apoptosis (TUNEL and M30 assay) and tumor differentiation.

Conditions
Colon Cancer
Being tested
Decitabine
Medical subject headings
Colonic Neoplasms

What participants receive

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

Study groups in NCT01882660
Study groupRoleWhat they receive
Decitabine treatmentExperimentalTreatment with decitabine
Receives: Drug: Decitabine

What is being measured

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

  1. Wnt target gene expression (APCDD1, AXIN2, DKK1, LGR5 and ASCL2)

    The primary objective of the study is to assess whether short-course pre-operative treatment with the demethylating agent decitabine can increase Wnt target gene expression as measured in resected tumors compared to pretreatment biopsies in patients with primary colon cancer.

    Measured: 30 minutes after surgery

Secondary outcomes (6)
  1. Wnt target methylation.

    The secondary objective of the study is to assess whether short-course pre-operative treatment with decitabine can revert CpG methylation and induce more favorable tumor characteristics as measured in resected tumors compared to pretreatment biopsies in patients with primary colon cancer.

    Measured: 30 minutes after surgery

  2. CIMP gene methylation

    See above

    Measured: 30 minutes after surgery

  3. Beta-catenin localisation

    See above

    Measured: 30 minutes after surgery

  4. Proliferation (Ki-67)

    See above

    Measured: 30 minutes after surgery

  5. Apoptose (TNEL en M30 assay)

    See above.

    Measured: 30 minutes after surgery

  6. Tumor differentiation

    See above

    Measured: 30 minutes after surgery

Timeline

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

  1. First posted20 Jun 2013 (estimated)
  2. Study startJul 2013
  3. Primary completionJan 2018
  4. Study completionJan 2018

Why it stopped: Inclusion of patients was slow. Could not reach the target within the studyperiod.

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01882660
Sponsor's protocol ID
NL44048.018.13
Acronym
DECO
Status last verified
Dec 2022
First submitted
24 May 2013
Last updated
19 Dec 2022
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Decitabine in people with Colon Cancer, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 1 site in Netherlands.

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 13 inclusion and 7 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: stopped early, as of the sponsor's last update on 19 Dec 2022. 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 Netherlands. 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?

The study was stopped early (reason given: Inclusion of patients was slow. Could not reach the target within the studyperiod.). Results are not available in the source record.

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?

Wnt target gene expression (APCDD1, AXIN2, DKK1, LGR5 and ASCL2) (time frame: 30 minutes after surgery). 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 19 Dec 2022.

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