Amino-acid PET Versus MRI Guided Re-irradiation in Patients With Recurrent Glioblastoma Multiforme (GLIAA)

December 15, 2010 updated by: University Hospital Freiburg

Amino-acid PET Versus MRI Guided Re-irradiation in Patients With Recurrent Glioblastoma Multiforme - a Randomised Phase II Trial

This study is designed to evaluate the impact of radiotherapy target volume delineation based on AA-PET compared to target volume delineation based on contrast enhanced T1 weighted MRI (T1Gd-MRI) on the clinical outcome of patients with recurrent glioblastoma (GBM) as well as concerning therapeutic safety of the respective strategy.

Study Overview

Detailed Description

The higher sensitivity and specificity of amino-acids (L-[methyl-11C]-methionine, MET and O-(2-(1)-Fluoroethyl)-L-tyrosine, FET) positron emission tomography (AA-PET) in the diagnosis of gliomas in comparison to computed tomography (CT) and magnetic resonance imaging (MRI) was demonstrated in many studies and is the rationale for using them in target volume delineation of these tumors. Several clinical trials have demonstrated the significant differences between AA-PET and standard MRI in gross tumor volume (GTV) delineation for treatment planning.

A small prospective study in patients with recurrent high grade gliomas treated with stereotactic fractionated radiotherapy (SFRT) showed a significant improvement in survival when AA-PET or single photon emission tomography (AA-SPECT) were integrated in target volume delineation, in comparison to patients treated using CT/MRI alone (Grosu et al. 2005).

However, there are no randomized studies demonstrating the impact of AA-PET based irradiation treatment on the clinical follow-up in comparison to a traditional MRI/CT based treatment.

The goal of this study is to evaluate the impact of radiotherapy target volume delineation based on AA-PET (new strategy) on the clinical outcome of patients with recurrent glioblastoma (GBM) compared to target volume delineation based on contrast enhanced T1 weighted MRI (T1Gd-MRI) (traditional, established strategy). Concerning therapeutic safety, the topography of recurrence outside the primary target volume as well as the localization of necrosis after the re-irradiation will be determined. All side effects will be assessed by CTCAE version 4.0 and the safety analyses will present the worst grade of acute and late side effect by treatment arm for the whole study period (treatment and follow up). Patients will be asked to complete a quality of life (QoL) questionnaire (as assessed by the E-ORTC QLQ-C15 PAL) in regular time intervals.

This will be the first phase II randomized study evaluating the impact of molecular imaging on outcome after radiotherapy in brain tumor patients.

Another goal of the technical part of this study is the development of a standardized physical-technical methodology for the integration of AA-PET and other imaging biomarkers in tumor volume delineation in radiation therapy.

Study Type

Interventional

Enrollment (Anticipated)

200

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 Contact

Study Contact Backup

Study Locations

    • Baden-Wuerttemberg
      • Freiburg i. Br., Baden-Wuerttemberg, Germany, 79106
        • Department of Radiotherapy, University Hospital Freiburg
        • Sub-Investigator:
          • Nicole Wiedenmann, Dr. med.
        • Sub-Investigator:
          • Marianne Schmucker, Dr. med.
        • Sub-Investigator:
          • Tanja Schimek-Jasch
        • Principal Investigator:
          • Anca-Ligia Grosu, Prof. Dr. med.
        • Principal Investigator:
          • Wolfgang Weber, Prof. Dr. med.

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:

  • Local recurrence of GBM (WHO grade IV) and either not eligible for tumor resection or with macroscopic residual tumor after resection of recurrent GBM
  • Recurrent tumor visible on AA-PET and MRI-T1-Gd with the diameter measuring 1 cm to 6 cm by either technique
  • Target volume definition possible according to both study arms
  • Previous radiation therapy of the primary with a maximal total dose 60 Gy
  • At least 9 months since the end of pre-irradiation and randomisation
  • At most 2 prior chemotherapy regimes
  • Start of radiation therapy possible within 2 weeks from AA-PET
  • Karnofsky Performance Score (KPS) ≥ 70%
  • Age ≥ 18 years
  • Written informed consent (IC) obtained

Exclusion Criteria:

  • - No histological confirmation of Glioma at initial diagnosis)
  • Recent (≤ 4 weeks before IC) histological result showing no tumor recurrence
  • No recurrent tumor detectable on last AA-PET or MRI-T1-Gd
  • Technical impossibility to use existing AA-PET for RT-planning
  • No prior radiation treatment to the primary tumor
  • less than 9 months between the end of first radiation treatment and randomisation
  • more than 2 previous chemotherapy regimes or previous treatment with Avastin or other molecular targeted therapies
  • less than 2 weeks between application of chemotherapy and randomisation
  • additional chemotherapy or molecular targeted therapy or further surgery planned before diagnosis of further tumor progression after study intervention
  • pregnancy, nursing or patient not willing to prevent pregnancy during treatment

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: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Arm A: AA-PET based target volume delineation
Experimental intervention (Arm A): High-precision re-irradiation. Target volume delineation based on AA-PET.
Experimental intervention (Arm A): High-precision re-irradiation (stereotactic fractionated radiation therapy (SFRT) and/or image guided radiation therapy, (IGRT), total dose 39 Gy, 3 Gy/d, 5x/ week. Target volume delineation based on AA-PET: GTV = AA uptake on PET, clinical target volume (CTV) = GTV+3mm, PTV = CTV+2mm
Control intervention (Arm B): High-precision re-irradiation (SFRT and/or IGRT), total dose 39 Gy, 3 Gy/d, 5x/ week. Target volume delineation based on T1Gd-MRI: GTV = contrast enhancement on T1Gd-MRI, CTV = GTV+3mm, PTV = CTV+2mm
ACTIVE_COMPARATOR: Arm B: T1Gd-MRI based target volume delineation
Control intervention (Arm B): High-precision re-irradiation. Target volume delineation based on T1Gd-MRI.
Experimental intervention (Arm A): High-precision re-irradiation (stereotactic fractionated radiation therapy (SFRT) and/or image guided radiation therapy, (IGRT), total dose 39 Gy, 3 Gy/d, 5x/ week. Target volume delineation based on AA-PET: GTV = AA uptake on PET, clinical target volume (CTV) = GTV+3mm, PTV = CTV+2mm
Control intervention (Arm B): High-precision re-irradiation (SFRT and/or IGRT), total dose 39 Gy, 3 Gy/d, 5x/ week. Target volume delineation based on T1Gd-MRI: GTV = contrast enhancement on T1Gd-MRI, CTV = GTV+3mm, PTV = CTV+2mm

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Progression Free Survival (PFS)
Time Frame: 6 months after randomization
6 months after randomization

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall survival
Time Frame: 1 year after randomisation
Kaplan-Meier: Performed on the per protocol population - all patients who are eligible and have started their allocated treatment
1 year after randomisation
Volumetrical assessment of GTV and PTV
Time Frame: Interim analysis
Volumetrical assessment of delineated gross tumor volume (GTV) and planning target volume (PTV) based on AA-PET vs. delineated GTV/PTV based on T1-Gd-MRI.
Interim analysis
Topography of recurrence
Time Frame: Follow up (end of radiotherapy, 6 and 12 weeks after radiotherapy, then every 3 months)
local relationship between recurrence and AA-PEt and MRI-derived TV
Follow up (end of radiotherapy, 6 and 12 weeks after radiotherapy, then every 3 months)
Localisation of necrosis after re-irradiation
Time Frame: Follow up (end of radiotherapy, 6 and 12 weeks after radiotherapy, then every 3 months)
Follow up (end of radiotherapy, 6 and 12 weeks after radiotherapy, then every 3 months)
Rate of long-term survivors
Time Frame: Follow up
Rate of long-term survivors = Survivors > 1 year after randomisation
Follow up
Quality of Life (QoL)
Time Frame: During Radiotherapy and Follow Up
QoL assessed by the EORTC QlQ-C 15 PAL questionnaire
During Radiotherapy and Follow Up
Rate of side effects
Time Frame: During Radiotherapy and Follow Up
Assessed according to CTCAE
During Radiotherapy and Follow Up

Collaborators and Investigators

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

Investigators

  • Study Chair: Anca-Ligia Grosu, Prof. Dr. med., Department of Radiotherapy, University Hospital Freiburg
  • Study Chair: Wolfgang Weber, Prof. Dr. med., Department of Nuclear Medicine, University Hospital Freiburg
  • Study Chair: Ursula Nestle, PD Dr. med., Department of Radiotherapy, University Hospital Freiburg

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.

General Publications

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

July 1, 2011

Primary Completion (ANTICIPATED)

July 1, 2013

Study Completion (ANTICIPATED)

July 1, 2014

Study Registration Dates

First Submitted

December 2, 2010

First Submitted That Met QC Criteria

December 2, 2010

First Posted (ESTIMATE)

December 3, 2010

Study Record Updates

Last Update Posted (ESTIMATE)

December 16, 2010

Last Update Submitted That Met QC Criteria

December 15, 2010

Last Verified

December 1, 2010

More Information

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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