Evaluation of Rectal Cancer Treatment Response Using PET/MRI (Rectal PET/MRI)

August 8, 2019 updated by: University of California, San Francisco
The investigators will be using the combination of FDG-PET and multiparametric MRI in pre- and post-adjuvant chemoradiation therapy in order to attempt to predict pathologic response on surgical resection.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

7

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Francisco, California, United States, 94107
        • UCSF Imaging Center at China Basin

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

20 patients with newly diagnosed rectal adenocarcinoma

Description

Inclusion Criteria:

  • A diagnosis of histopathologically confirmed rectal adenocarcinoma.
  • Locally advanced disease as determined by ERUS or pelvic MRI. Endoscopy reports should clearly state both the T and N stage.
  • Patients with cT2N1-3M0 or cT2-4NxM0 will be considered eligible for participation.
  • Age ≥18.
  • Ability to understand a written informed consent document and the willingness to sign it.
  • Tumor must be determined to be surgically resectable. Surgical resection is planned to take place at Univeristy of California, San Francisco (UCSF).
  • Neoadjuvant chemoradiation prior to resection is planned..
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2.

Exclusion Criteria:

  • ERUS tumor state of T1.
  • Radiographic evidence of metastatic disease
  • Weight in excess of limitations of the scanner or girth that prohibits entry into the bore of the PET/CT scanner due to size.
  • Any medical condition which impairs the ability to lie flat and without movement for 15 minutes (e.g. cough, severe arthritis, etc.)
  • Prior receipt of any therapy, including local excision, radiation or chemotherapy, for the diagnosed rectal adenocarcinoma.
  • Prior history of pelvic radiation.
  • Uncontrolled hyperglycemia (defined as inability to achieve a glucose of <250 mg/dL at time of fluorodeoxyglucose (FDG) injection).
  • Impaired renal function (CKD 4 or 5: estimated glomerular filtration rate (eGFR) < 30 mLs/min), which is a contraindication to gadolinium containing contrast.
  • Known allergy to gadolinium containing contrast agents.
  • Contraindication to use of fluoropyrimidines as a radiosensitizing agent.
  • Pregnancy or nursing. Women of child bearing potential must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of HCG) within 72 hours prior to randomization. This is because of the potential teratogenic effects of the involved imaging modalities, radiation, and chemotherapy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Adjuvant chemotherapy
Radiation: Chemoradiation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
change in SUVmax
Time Frame: 2 months
To determine whether percent change in SUVmax correlates with the extent of pathologic primary tumor response
2 months
tumor volume
Time Frame: 2 months
To determine whether percent change in tumor volume correlates with the extent of pathologic primary tumor response
2 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of California, San Francisco

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 15, 2014

Primary Completion (Actual)

January 28, 2018

Study Completion (Actual)

January 28, 2018

Study Registration Dates

First Submitted

September 3, 2014

First Submitted That Met QC Criteria

September 5, 2014

First Posted (Estimate)

September 8, 2014

Study Record Updates

Last Update Posted (Actual)

August 13, 2019

Last Update Submitted That Met QC Criteria

August 8, 2019

Last Verified

August 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 144513
  • NCI-2015-00980 (Registry Identifier: NCI Clinical Trials Reporting Program)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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