Intensity-modulated Radiotherapy With Integrated-boost in Patients With Spinal Bone Metastases (IRON-2)

July 12, 2016 updated by: Heidelberg University
The primary goal of the study is to determine the local control-rate after radiotherapy (RT) with and without simultaneous integrated boost (SIB) concepts in patients with bone metastases of the spine. Further study objectives are survival, and clinical parameters such as pain, quality of life (QoL) and fatigue. We expect an improvement in local control and consecutively an increased re-sclerotization of the bone metastasis due to a higher biological dose in the tumor area. Therefore patients could benefit in quality-of-life, pain relief and mobility.

Study Overview

Detailed Description

The vertebral column is the main localization of bone metastases and is where they frequently indicate an advanced stage of a malignant primary disease [1, 2]. Two thirds of all patients with tumors are estimated to develop bone metastases in the course of their disease [3]. Spinal bone metastases are of central impact for patients in a palliative setting. The clinical symptoms include pain at rest and under exercise but also impaired activity of daily life, the risk of pathological fractures, and neurological deficits. Local control is the essential factor for stability of the vertebral body of patients with spinal bone metastases. In regard to re-calcification of former osteolytic lesions, palliative radiotherapy (RT) represents an effective treatment option [4]. The most common schedule was specified as 30 Gy in 10 fractions. Stereotactic body radiation therapy (SBRT) using intensity-modulated radiotherapy (IMRT) can be a safe modality for treating spinal metastasis with enhanced targeting accuracy [5]. Secondly, IMRT to the spine was well tolerated (especially in the spinal cord), had no significant late toxicities, and spared other organs at risk simultaneously [6]. The main problem of the standard schedule is the limited dose application to the metastasis due to organ at risk myelon. Therefore, the aims of this study is to apply a high biological dose in the tumor region and to achieve an improved result related to local control for palliative patients with painful spinal bone metastases. Secondly, the aim is to evaluate QoL, fatigue, and survival of three different RT-techniques. To the best of our knowledge, no comparable randomized study has been described in the literature so far.

Study Type

Interventional

Enrollment (Anticipated)

120

Phase

  • Phase 2

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

      • Heidelberg, Germany, 69120
        • Dept of Radiation Oncology, University of Heidelberg, Germany

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 to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with a histologically confirmed tumor diagnosis, with secondarily diagnosed solitary/multiple metastatic spinal bone metastases
  • Indication for RT of the bone metastasis
  • Age: between 18 and 80 years
  • Karnofsky performance score ≥ 70
  • Signed Declaration of Informed Consent
  • Bisphosphonate therapy

Exclusion Criteria:

  • Significant neurological or psychiatric disorders, including dementia and epileptic seizures
  • Lacking or diminished legal capacity
  • foregoing radiotherapy in the planned RT area
  • Any medical of psychological condition that the study director considers a preventive factor for the patient's ability to complete the study or to adequately understand the scope of the study and to give his/her consent

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: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: FACTORIAL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: A
Intensity modulated radiotherapy (IMRT) 30Gy in 10 fractions
Intensity modulated radiotherapy (IMRT) 30Gy in 10 fractions of the involved spinal bone metastases
EXPERIMENTAL: B
Intensity modulated radiotherapy (IMRT) 30Gy in 10 fractions with an SIB with 40 Gy in 10 fractions to the metastasis
Intensity modulated radiotherapy (IMRT) 30Gy in 10 fractions with an SIB with 40 Gy in 10 fractions to the metastasis of the involved spinal bone metastases
EXPERIMENTAL: C
Intensity modulated radiotherapy (IMRT) 20Gy in 5 fractions
Intensity modulated radiotherapy (IMRT) 20Gy in 5 fractions of the involved spinal bone metastases
EXPERIMENTAL: D
Intensity modulated radiotherapy (IMRT) 20Gy in 5 fractions with an SIB with 30 Gy in 5 fractions to the metastasis
Intensity modulated radiotherapy (IMRT) 20Gy in 5 fractions with an SIB with 30 Gy in 5 fractions to the metastasis of the involved spinal bone metastases

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
local control
Time Frame: 3 months after RT
local control as bone density is assessed 12 weeks post completion of radiotherapy using follow-up CT scan of the spine
3 months after RT

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
progression-free survival (PFS)
Time Frame: 2 years post completion of radiotherapy
PFS is assessed 2 years post completion of radiotherapy
2 years post completion of radiotherapy
Quality of life
Time Frame: 12 and 24 weeks post completion of therapy
Quality of life is assessed using the EORTC BM22 questionnaire at 12 and 24 weeks post completion of treatment
12 and 24 weeks post completion of therapy
Fatigue
Time Frame: 12 and 24 weeks post completion of therapy
Fatigue is assessed using the EORTC FA13 questionnaire
12 and 24 weeks post completion of therapy
pain reduction
Time Frame: end of treatment, 12 and 24 weeks post completion of radiotherapy
pain is evaluated using the VAS pain scale (0-100 points) at completion and 12/ 24 weeks post completion of radiation
end of treatment, 12 and 24 weeks post completion of radiotherapy

Collaborators and Investigators

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

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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

September 1, 2016

Primary Completion (ANTICIPATED)

February 1, 2018

Study Completion (ANTICIPATED)

February 1, 2018

Study Registration Dates

First Submitted

July 12, 2016

First Submitted That Met QC Criteria

July 12, 2016

First Posted (ESTIMATE)

July 14, 2016

Study Record Updates

Last Update Posted (ESTIMATE)

July 14, 2016

Last Update Submitted That Met QC Criteria

July 12, 2016

Last Verified

July 1, 2016

More Information

Terms related to this study

Other Study ID Numbers

  • IRON-2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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