Measurement of the Radiation Dose Cuticles Using Electron Paramagnetic Resonance (EPR)

This study has been terminated.
(PI has relocated)
Information provided by (Responsible Party):
University of Rochester Identifier:
First received: May 15, 2009
Last updated: September 18, 2015
Last verified: September 2015
This study is to test the effectiveness a new method (called EPR dosimetry) that could be used to measure radiation doses to fingernails that occur as a result of unplanned exposure to radiation, such as might occur from the actions of terrorists, or from accidents.

Condition Intervention
Irradiation; Adverse Effect
Radiation: Standard of care given for treatment of cancer

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Measurement of the Radiation Dose Cuticles Using Electron Paramagnetic Resonance (EPR) Spectroscopy

Further study details as provided by University of Rochester:

Primary Outcome Measures:
  • Mean Dose of Radiation Received by Fingernails [ Time Frame: 2.5 years ] [ Designated as safety issue: No ]
    The mean dose in gray of radiation exposure to participants fingernails as determined by Electron Paramagnetic Resonance (EPR).

Secondary Outcome Measures:
  • Determination of the Range of Background Signal Measured by the EPR Device. [ Time Frame: 2.5 years ] [ Designated as safety issue: No ]

Enrollment: 2
Study Start Date: November 2007
Study Completion Date: January 2008
Primary Completion Date: January 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: Standard of care radiation therapy
Standard of care given for treatment of cancer. Subjects receiving incidental radiation dose to fingernails.
Radiation: Standard of care given for treatment of cancer
Subjects receiving a known dose of radiation during Total Body Irradiation.

Detailed Description:
In the event of a radiological exposure incident, such as the detonation of a radiological dispersion device (RDD) in a terrorist attack or accidental exposures to sources of ionizing radiation, it is advantageous to use multiple methods to assess the dosimetry of individuals exposed to this radiation (4). These methods should include a physical assessment of the dosimetry at the exposure site to, 1) identify the type of radiation (e.g., gamma rays, neutrons or radioisotopes), 2) evaluate the distribution of radioisotopes and/or radioactivity at the site, and 3) determine the location of exposed individuals to the source of radiation. For individuals affected by the radiological incident, the monitoring of their clinical signs and symptoms is important for determining whether acute symptoms of radiation sickness are being presented and if immediate medical intervention is required. However, it is recognized that an invaluable aid for the clinical management of exposed individuals is the use of biomarkers that can be readily obtained from the exposed individual and used for assessing dosimetry (4,9). Biomarkers that are most useful to the physician are those produced or expressed within minutes to hours following exposure. With the dosimetry provided through these early phase biomarker measurements, the physician can better assess the clinical signs that are presented by an exposed individual and better determine the need and course of treatment.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Arm 1:

  • Radiation field to include one or more fingernail or toenail;
  • KPS > 70;
  • For TBI subjects: sufficient cuticle length (3 mm or greater) on all fingers and/or toes.

Exclusion Criteria:

  • Prior therapeutic radiation doses to the fingernails;
  • Life expectancy < 6 months;
  • lifetime radiation dose of greater than 0.1 Gy through prior radiation therapy or occupational exposures.
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Please refer to this study by its identifier: NCT00904189

United States, New York
Department of Radiation Oncology, University of Rochester Medical Center
Rochester, New York, United States, 14642
Sponsors and Collaborators
University of Rochester
Principal Investigator: Steven Swarts, PhD Department of Radiation Oncology, University of Rochester Medical Center
  More Information

No publications provided

Responsible Party: University of Rochester Identifier: NCT00904189     History of Changes
Other Study ID Numbers: U4706, RSRB00014685
Study First Received: May 15, 2009
Results First Received: December 24, 2014
Last Updated: September 18, 2015
Health Authority: United States: Institutional Review Board processed this record on November 27, 2015