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CompletedNCT01207895Updated Feb 23, 2017

Molecular Determinants Affecting Fluoro-L-thymidine (FLT) Positron Emission Tomography (PET) in Rectal Cancer

A Phase 1 interventional study of PET imaging with [18F]-FLT and [18F]-fluorodeoxythymidine in Rectal Cancer, sponsored by Vanderbilt-Ingram Cancer Center. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2017-02-23.

Sponsored by Vanderbilt-Ingram Cancer Center · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
5
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this study is to determine if positron emission tomography (PET) imaging with an imaging agent called 18F-fluorodeoxythymidine([18F]-FLT) will allow investigators to measure how well tumor(s) respond to treatment without taking a tissue sample (biopsy). Additionally, the investigators want to determine if it is possible to predict how well tumor(s) might respond to treatment with [18F]-FLT PET imaging.

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Conditions studied

  • Rectal Cancer

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In context

Rectal Neoplasms

1,762 studies on the registry are indexed under Rectal Neoplasms; 518 are open to participants now.

This study's enrollment of 5 is below the median of 65 across 1,298 interventional studies indexed under Rectal Neoplasms.

Browse Rectal Neoplasms studies →

Lead sponsor

Vanderbilt-Ingram Cancer Center is the lead sponsor of 220 studies on the registry; 32 are open to participants now.

Of its 23 completed or terminated interventional studies of FDA-regulated products, 18 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subjects with known rectal cancer.
  • Subjects must have signed an approved consent form.
  • Subjects must be 18 years of age or older.

Exclusion criteria

Exclusion Criteria:

  • Children less than 18 are excluded.
  • Pregnant women and women who are breast feeding will be excluded from this study. A serum beta HCG will also be performed for each pre-menopausal female subject.
  • Patients who are acutely ill who are deemed by their treating physician as not suitable candidates for this study
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Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
5 participants (actual)

Study arms

  • Experimental
    [18F]-FLT PET scans

    Device: PET imaging with [18F]-FLT · Drug: [18F]-fluorodeoxythymidine

Interventions

  • DevicePET imaging with [18F]-FLT

    Up to three \[18F\]-FLT PET scans; one before beginning treatment, one at week three of treatment, and one at week 11, after completion of treatment but prior to surgery.

  • Drug[18F]-fluorodeoxythymidine

    \[18F\]-fluorodeoxythymidine is administered intravenously approximately 60 minutes prior to the start of PET image acquisition.

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What researchers measure

Primary outcomes

  1. Utility of [18F]-FLT PET to assess cellular proliferation in neoadjuvant trials of patients with rectal cancer

    Ability of this imaging technique to determine growth of cancer cells and as a quantitative biomarker of response to relevant, molecularly targeted, therapies

    Time frame: at study entry, at week 3 during chemotherapy and radiation, and at week 11 after treatment but before surgery

Secondary outcomes

  1. Correlative biology

    Pre-treatment and intra-treatment rectal biopsy tissue and tissue from the post-treatment surgical tumor resection will be examined for cyclin D1, TK1, PCNA, pHis-H3, thymidylate, p-Erk, p-Akt to identify changes from pre-treatment to post-treatment

    Time frame: at study entry before treatment, at week 3 of treatment, and at week 11 after treatment

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Study locations

1 site
  • Vanderbilt-Ingram Cancer Center
    Nashville, Tennessee 37232, United States
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References and documents

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 23, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01207895
Lead sponsor
Vanderbilt-Ingram Cancer Center
Responsible party
Henry C. Manning, PhD (Assistant Professor of Radiology, Neurosurgery, Biomedical Engineering, Program in Chemical and Physical Biology, Vanderbilt-Ingram Cancer Center) — Principal investigator
First posted
Sep 23, 2010
Start date
Mar 2010
Primary completion
Dec 2012
Completion
Jul 2013
Last update
Feb 23, 2017

Study contacts

Henry Manning, Ph.D.
principal investigator · Vanderbilt-Ingram Cancer Center

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

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