Improving Pancreas Radiotherapy Plans Using Respiration-driven Anatomic Deformation: A Pilot Study

October 29, 2014 updated by: Wensha Yang, PhD., Cedars-Sinai Medical Center

The overall aim of this study is to investigate a novel "dual instance" planning method to make use of the respiratory motion to improve pancreatic radiation therapy (RT) treatment planning.

Specific Aim 1: Acquire patient abdominal MRI and CT at both deep inspiration (INSP) and expiration (EXP) positions and characterize the changes in geometric relationships between the INSP and EXP instances for tumor and normal tissues including stomach, duodenum and bowel. We hypothesize that INSP and EXP MRI and CT characterization will allow identification of patients who may benefit from the dual instance planning method.

Specific Aim 2: Develop, investigate and evaluate plans based on free breathing, single instance breath hold, and the novel dual instance anatomical information. We hypothesize that use of the dual instance method will lead to improved plans, demonstrated by the ability to increase dose to the target, while maintaining the clinically-accepted normal tissue dose constraints.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

15

Phase

  • Early Phase 1

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
      • Los Angeles, California, United States, 90048
        • Cedars-Sinai Medical Center

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

Description

Inclusion Criteria:

  • Any patient with a biopsy proven diagnosis of malignancy involving the pancreas to be treated with radiation therapy
  • Age >18 years
  • Ability to understand and the willingness to sign a written informed consent document
  • Creatinine or creatinine clearance of <1.5 times the upper limit of normal or >45 mL/min/1.73m2 for patients with creatinine levels above normal. Modification of Diet in Renal Disease (MDRD) formula was used to calculate the creatinine level

Exclusion Criteria:

  • Patients who are currently receiving any investigational agents
  • Unable to undergo MRIs
  • Patients with late stage kidney disease or who have had a liver transplant
  • Individuals who are allergic to animal dander or have asthma that may be enflamed by proximity to animals will be excluded as the scans will take place in a facility where animal research is also performed.

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

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Abdominal MRI
Subjects will undergo magnetic resonance imaging (MRI) with contrast. Magnetic resonance (MR)_freebreathing scan will be acquired. MR_inspiration scan will be acquired. MR_expiration scan will be acquired.
Other: Magnetic Resonance Imaging (MRI)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Compare magnetic resonance (MR) in different breath-hold phases to quantify respiration induced anatomic changes
Time Frame: Baseline only (at least 3 days after CT simulation and up to 1 week after the initiation of radiation treatment)
Baseline only (at least 3 days after CT simulation and up to 1 week after the initiation of radiation treatment)

Secondary Outcome Measures

Outcome Measure
Time Frame
Modeling the feasibility of the dose escalation using respiration induced anatomic changes
Time Frame: Baseline only (at least 3 days after CT simulation and up to 1 week after the initiation of radiation treatment)
Baseline only (at least 3 days after CT simulation and up to 1 week after the initiation of radiation treatment)

Collaborators and Investigators

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

Sponsor

Cedars-Sinai Medical Center

Investigators

  • Principal Investigator: Wensha Yang, Ph.D., Cedars-Sinai Medical Center

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

January 1, 2013

Primary Completion (Actual)

September 1, 2014

Study Registration Dates

First Submitted

December 18, 2013

First Submitted That Met QC Criteria

December 29, 2013

First Posted (Estimate)

December 31, 2013

Study Record Updates

Last Update Posted (Estimate)

October 30, 2014

Last Update Submitted That Met QC Criteria

October 29, 2014

Last Verified

October 1, 2014

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • IIT2012-07-YANG-MRIRESP

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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