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FLT PET Imaging for Cervical Cancer

This study is ongoing, but not recruiting participants.
Holden Comprehensive Cancer Center
Information provided by (Responsible Party):
Sarah McGuire, University of Iowa Identifier:
First received: February 23, 2010
Last updated: July 5, 2016
Last verified: July 2016

Our primary hypothesis is that [18F]FLT PET can identify active bone marrow in addition to metabolically active tumor.

This trial will use FLT-PET imaging to define areas of active bone marrow in the pelvis. The radiation plan is then designed to spare that area, in hopes of keeping the bone marrow active during therapy. Bone marrow and tumor activity will be monitored using a sequence of FLT PET scans during the course of chemotherapy and radiation therapy.

Condition Intervention Phase
Uterine Cervical Neoplasms
Drug: [F18]Fluorothymidine
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: `F-18 Fluorothymidine ([18F]FLT) PET Imaging for Early Evaluation of Response to Chemoradiation Therapy in Patients With Cervical Cancer

Resource links provided by NLM:

Further study details as provided by University of Iowa:

Primary Outcome Measures:
  • FLT uptake [ Time Frame: baseline, weeks 1, 2, 3, and 4 of therapy, and 1 month post-therapy ]
    Standarized uptake values of the FLT tracer signal in both the tumor volume and bone marrow volume. Changes in uptake will be assessed compared to treatment outcome as well as blood cell counts.

  • Prognostic outcome [ Time Frame: Post-treatment ]
    Comparing change in the standardized uptake value against local and regional disease control as well as disease free survival.

Secondary Outcome Measures:
  • Bone marrow [ Time Frame: pre-treatment ]
    The volume of pelvic bone that will be irradiated and the volume of active bone marrow treated as identified by the baseline FLT PET scan.

  • Biomarkers [ Time Frame: Weekly during treatment ]
    White blood cell and platelet counts, using pretreatment blood draw as baseline.

  • Compliance [ Time Frame: post-treatment ]
    Compliance with planned chemotherapy cycles (the number completed versus the number planned)

Estimated Enrollment: 30
Study Start Date: September 2009
Estimated Study Completion Date: September 2018
Primary Completion Date: May 2016 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Group 2
Receives fourth [F18]Fluorothymidine (FLT) PET scan after 20 fractions of radiation therapy.
Drug: [F18]Fluorothymidine
FLT PET scan 5 mCi (+/- 10%)
Other Name: FLT
Experimental: Group 1
Receives fourth [F18]Fluorothymidine (FLT) PET scan after 15 fractions of radiation therapy.
Drug: [F18]Fluorothymidine
FLT PET scan 5 mCi (+/- 10%)
Other Name: FLT

Detailed Description:

Subjects will undergo a total of 5 FLT PET scans.

Group 1 has FLT PET scans pretreatment, after 5 radiation treatments, after 10 radiation treatments, after 15 radiation treatments, and then 1 month after completing radiation therapy.

Group 2 has FLT PET scans pretreatment, after 5 radiation treatments, after 10 radiation treatments, after 20 radiation treatments, and then 1 month after completing radiation therapy.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Ability to understand and willingness to sign a written informed consent document.
  • Histologically confirmed stage IB2, IIA, IIB, IIIB, and IVA squamous cell carcinoma of the cervix.
  • Scheduled to receive chemo-radiation for oncologic treatment.
  • Karnofsky of at least 60 at time of screening
  • Life expectancy of at least 6 months.
  • Leukocytes at least 3,000/microL
  • absolute neutrophil count at least 1,500/microL
  • platelets at least 100,000/microL
  • total bilirubin at maximum 1.0 mg/dL (UIHC limit of normal)
  • either ALT or AST less than 2.5 times the upper limit of normal
  • creatinine less than 1.5 times the upper limit of normal
  • non-pregnant, non-nursing, willing to use contraception

Exclusion Criteria:

  • oncology research protocol requiring full pelvic radiation (i.e., 4-field box technique) or experimental chemotherapy
  • uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with the study requirements.
  • subjects taking nucleoside analog medications such as those used as antiretroviral agents.
  • patients who have undergone hysterectomy or will have a hysterectomy as part of their cancer therapy.
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Please refer to this study by its identifier: NCT01075412

United States, Iowa
Holden Comprehensive Cancer Center
Iowa City, Iowa, United States, 52242
Sponsors and Collaborators
University of Iowa
Holden Comprehensive Cancer Center
Study Director: Michael M Graham, Ph.D., M.D. The University of Iowa
Principal Investigator: Sarah McGuire, Ph.D. The University of Iowa
  More Information


Responsible Party: Sarah McGuire, Assistant Professor of Radiation Oncology, University of Iowa Identifier: NCT01075412     History of Changes
Other Study ID Numbers: 200906786
Study First Received: February 23, 2010
Last Updated: July 5, 2016
Individual Participant Data  
Plan to Share IPD: Yes
Plan Description: Yes, data will be shared utilizing results

Keywords provided by University of Iowa:
Positron-Emission Tomography
Radiotherapy, Intensity-Modulated

Additional relevant MeSH terms:
Uterine Cervical Neoplasms
Uterine Neoplasms
Genital Neoplasms, Female
Urogenital Neoplasms
Neoplasms by Site
Uterine Cervical Diseases
Uterine Diseases
Genital Diseases, Female processed this record on May 22, 2017