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Intraoperative Radiotherapy for Rectal Cancer Using the Photon Radiosurgery System

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ClinicalTrials.gov Identifier: NCT00910494
Recruitment Status : Terminated (No longer practical to deliver treatment)
First Posted : June 1, 2009
Last Update Posted : April 24, 2018
Information provided by (Responsible Party):
Ian Sanders, University of Dundee

Brief Summary:
The investigators would like to test the safety and efficacy of intraoperative radiotherapy (IORT) in rectal cancer using the Photon Radiosurgery System (PRS).

Condition or disease Intervention/treatment Phase
Rectal Neoplasm Radiation: Photon Radiosurgery System IORT Not Applicable

Detailed Description:
Rectal cancer is usually managed by a combination of surgery and x-ray treatments (radiotherapy). The standard way of delivering radiotherapy is with external 'beams' directed at the tumour site. However, although in rectal cancer these treatments are effective, patients are often troubled by late side effects. An alternative option is to deliver the x-rays at the same time as surgery. This is known as intraoperative radiotherapy, or IORT, and a number of techniques have already been tried. There is a new IORT technology known as the Photon Radiosurgery System (PRS) which we are using to treat breast and brain cancers. Our experience to date has informed us that IORT with this x-ray source is safe and effective. We would like to use the technology to treat rectal cancer and believe that it may improve disease outcomes without the side effects associated with standard radiotherapy. We would also like to study the biological processes that follow radiation. It is not understood why some people are more sensitive to x-ray treatments than others. If we knew the reasons for this then we might be able to individualise treatments.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 9 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Intraoperative Radiotherapy (IORT) for Rectal Cancer Using the Photon Radiosurgery System (PRS): A Phase I Clinical Trial
Study Start Date : January 2010
Actual Primary Completion Date : March 2016
Actual Study Completion Date : March 2016

Arm Intervention/treatment
Experimental: 12 Gray IORT Radiation: Photon Radiosurgery System IORT
Experimental: 15 Gray IORT Radiation: Photon Radiosurgery System IORT

Primary Outcome Measures :
  1. surgical complication rate [ Time Frame: 30 days post treatment ]

Secondary Outcome Measures :
  1. survival [ Time Frame: 5 year ]
  2. local control [ Time Frame: 5 year ]

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

Inclusion Criteria:

  • Operable rectal cancer

Exclusion Criteria:

  • Locally advanced disease requiring long course pre-operative chemoradiation, metastatic disease

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00910494

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United Kingdom
University of Dundee
Dundee, Tayside, United Kingdom, DD1 9SY
Sponsors and Collaborators
University of Dundee
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Principal Investigator: Alastair Munro, MBChB University of Dundee
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Responsible Party: Ian Sanders, Specialist Registrar, University of Dundee
ClinicalTrials.gov Identifier: NCT00910494    
Other Study ID Numbers: EB/JK/LET/LN1277
First Posted: June 1, 2009    Key Record Dates
Last Update Posted: April 24, 2018
Last Verified: April 2018
Keywords provided by Ian Sanders, University of Dundee:
Rectal neoplasm C04.588.274.476.411.307.790
Intraoperative Radiotherapy
Additional relevant MeSH terms:
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Rectal Neoplasms
Colorectal Neoplasms
Intestinal Neoplasms
Gastrointestinal Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Digestive System Diseases
Gastrointestinal Diseases
Intestinal Diseases
Rectal Diseases