AzTrials
AzTrials

Colorectal NeoplasmsPhase 1/2NCT00145665

The Role of Fluorothymidine Positron Emission Tomography (FLT-PET) in Proliferation of Colorectal Liver Metastases

A Phase 1/2 study testing FLT-PET scan in people with Colorectal Neoplasms and Liver Neoplasms, run by Radboud University Medical Center at 1 site in Netherlands.

Terminated

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

Official record
Search all trials

Trial summary

The aim of the study is to obtain information on FLT used in a PET-scan as a marker for the proliferation of colorectal liver metastases, so that the risk of recurrence can be identified in a noninvasive way, concerning patients with resectable colorectal liver metastases. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colorectal Neoplasms, Liver Neoplasms
What is being tested?
FLT-PET scan
Type of treatment
Surgery or procedure
How many people
80 participants
Where
1 siteNetherlands
Study dates
Jan 2005to Dec 2012
Phase
Phase 1/2
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

  • Colorectal liver metastases deemed resectable on three-phase computed tomography (CT)-scan of the liver
  • No evidence of extrahepatic disease on CT chest and abdomen and possible fluorodeoxyglucose (FDG)-PET (if part of surgical work-up)
  • No evidence of local recurrence or second primary colorectal tumor on colonoscopy or colonography
  • Primary colorectal tumor radically removed
  • Informed consent

Who cannot join

  • Pregnancy
  • Recent chemotherapy

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Radboud University

    Nijmegen, Gelderland, 6500 HB

Other trials in Netherlands

About this study

Official title: The Role of 3-Deoxy-3[18]Fluorothymidine Positron Emission Tomography (FLT-PET) in Proliferation of Colorectal Liver Metastases

The aim of the study is to obtain information on FLT used in a PET-scan as a marker for the proliferation of colorectal liver metastases, so that the risk of recurrence can be identified in a noninvasive way, concerning patients with resectable colorectal liver metastases.

The hypothesis of this study is that a higher uptake of FLT in the liver metastases has a good correlation with the proliferation rate of the metastases. This rate is related to the risk of recurrence.

Read the detailed description

Aim of the Study:

Validation of FLT-PET as a proliferation marker for colorectal liver metastases, so that the risk of recurrence in patients with resected colorectal liver metastases can be assessed in a noninvasive method.

Study Design:

Validation study (n=40) to determine the correlation between quantitative FLT-PET (in this study determined before resection of the colorectal liver metastases) and the histologically determined proliferation index in the resected specimen of the metastases ('golden standard'). If correlation is established, the correlation between the proliferation and recurrence rate studied is also (n=80).

Study Population:

Patients with colorectal liver metastases.

Intervention:

FLT-PET scan

Scientific Basis of Study:

Several reports show that presence or absence of extrahepatic disease is a determining prognostic factor. Patients with extrahepatic disease are rarely suited for resection of the liver metastases. Recently several papers describe that the proliferation index of the liver metastases is another determining prognostic factor. Patients with a high proliferation factor have a worse prognosis. For both of these determining factors, it seems that PET diagnostics play an essential role and contribute to better selection of patients suitable for resection.

Diagnostics on Proliferation:

Seeing that the proliferation rate is preoperatively not determined without a biopsy (which is contraindicated due to dissemination), all patients with colorectal liver metastases (with no signs of extrahepatic deposits) are resected, without knowledge of the proliferation. FLT is a marker that visualizes proliferation and thus seems an ideal candidate to determine the proliferation rate in a noninvasive method. As of yet no validation studies of FLT-PET in colorectal liver metastases have been described.

Evaluation:

Quantitative histologic data are correlated with the quantitative FLT-PET data. If the correlation is higher that 0.85, this correlation is established. If this correlation is found, the inclusion of patients will be extended from 40 to 80 patients, seeing that this will give us the opportunity to correlate clinical data with the histological data. (alpha = 0.05, one-sided, beta = 0.90, assuming that an acceptable difference in sensitivity between both tests is 0 and an unacceptable difference is 0.02). If this correlation is significant, a new study will be proposed with the introduction of neoadjuvant chemotherapy, where the selection will be determined on basis of the proliferation rate.

Being tested
FLT-PET scan
Keywords
FLT-PET, colorectal liver metastases, proliferation, proliferation markers, recurrence
Medical subject headings
Colorectal Neoplasms, Liver Neoplasms, Recurrence

What participants receive

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

  • FLT-PET scanProcedure or surgery

    Also called [18F]-3'-fluoro-3'-deoxy-L-thymidine Positron emission tomography scan

    PET scan using FLT

What is being measured

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

  1. correlation FLT-uptake in colorectal liver metastases and the histologically determined proliferation

Secondary outcomes (1)
  1. correlation FLT and recurrence rate

Timeline

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

  1. First posted5 Sep 2005 (estimated)
  2. Study startJan 2005
  3. Primary completionDec 2011 (estimated)
  4. Study completionDec 2012 (estimated)

Why it stopped: no accrual achieved

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 1/2
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00145665
Sponsor's protocol ID
FLT-PET CRC-LM
Status last verified
Feb 2007
First submitted
1 Sep 2005
Last updated
5 Sep 2011
Results posted
No

Publications

  • Fong Y, Cohen AM, Fortner JG, Enker WE, Turnbull AD, Coit DG, Marrero AM, Prasad M, Blumgart LH, Brennan MF. Liver resection for colorectal metastases. J Clin Oncol. 1997 Mar;15(3):938-46. doi: 10.1200/JCO.1997.15.3.938.

    PubMed 9060531
  • Hughes KS, Rosenstein RB, Songhorabodi S, Adson MA, Ilstrup DM, Fortner JG, Maclean BJ, Foster JH, Daly JM, Fitzherbert D, et al. Resection of the liver for colorectal carcinoma metastases. A multi-institutional study of long-term survivors. Dis Colon Rectum. 1988 Jan;31(1):1-4. doi: 10.1007/BF02552560.

    PubMed 3366020
  • Gibbs JF, Weber TK, Rodriguez-Bigas MA, Driscoll DL, Petrelli NJ. Intraoperative determinants of unresectability for patients with colorectal hepatic metastases. Cancer. 1998 Apr 1;82(7):1244-9. doi: 10.1002/(sici)1097-0142(19980401)82:73.0.co;2-f.

    PubMed 9529015
  • Tullo A, D'Erchia AM, Honda K, Mitry RR, Kelly MD, Habib NA, Saccone C, Sbisa E. Characterization of p53 mutations in colorectal liver metastases and correlation with clinical parameters. Clin Cancer Res. 1999 Nov;5(11):3523-8.

    PubMed 10589767
  • Buck AK, Schirrmeister H, Hetzel M, Von Der Heide M, Halter G, Glatting G, Mattfeldt T, Liewald F, Reske SN, Neumaier B. 3-deoxy-3-[(18)F]fluorothymidine-positron emission tomography for noninvasive assessment of proliferation in pulmonary nodules. Cancer Res. 2002 Jun 15;62(12):3331-4.

    PubMed 12067968
  • Buck AK, Halter G, Schirrmeister H, Kotzerke J, Wurziger I, Glatting G, Mattfeldt T, Neumaier B, Reske SN, Hetzel M. Imaging proliferation in lung tumors with PET: 18F-FLT versus 18F-FDG. J Nucl Med. 2003 Sep;44(9):1426-31.

    PubMed 12960187
  • Francis DL, Visvikis D, Costa DC, Arulampalam TH, Townsend C, Luthra SK, Taylor I, Ell PJ. Potential impact of [18F]3'-deoxy-3'-fluorothymidine versus [18F]fluoro-2-deoxy-D-glucose in positron emission tomography for colorectal cancer. Eur J Nucl Med Mol Imaging. 2003 Jul;30(7):988-94. doi: 10.1007/s00259-003-1187-0. Epub 2003 May 9.

    PubMed 12739071
  • Vesselle H, Grierson J, Peterson LM, Muzi M, Mankoff DA, Krohn KA. 18F-Fluorothymidine radiation dosimetry in human PET imaging studies. J Nucl Med. 2003 Sep;44(9):1482-8.

    PubMed 12960196
  • Rodgers MS, Collinson R, Desai S, Stubbs RS, McCall JL. Risk of dissemination with biopsy of colorectal liver metastases. Dis Colon Rectum. 2003 Apr;46(4):454-8; discussion 458-9. doi: 10.1007/s10350-004-6581-6.

    PubMed 12682536

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing FLT-PET scan in people with Colorectal Neoplasms and Liver Neoplasms, run by Radboud University Medical Center 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 5 inclusion and 2 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 5 Sep 2011. 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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: no accrual achieved). 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?

correlation FLT-uptake in colorectal liver metastases and the histologically determined proliferation. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00145665, which also lists 9 linked publications.

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 5 Sep 2011.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in