proton therapy: Radiotherapy delivered with protons
photon therapy: Radiotherapy delivered with photons
Study summary
Rationale:
Proton beam therapy has recently become available for the treatment of patients with WHO grade 2 and 3 IDH mutated (IDHmt) glioma in the Netherlands. The dose distributions associated with proton therapy have substantially reduced the volume of the normal brain irradiated with low and intermediate radiotherapy doses. Whether this impacts rates of progressive disease or safety issues and how this compares with a similar population treated with photon therapy is currently unknown.
Objective:
To investigate short term outcomes after proton and photon radiotherapy for grade 2 and 3 IDHmt glioma.
Eligibility
Sex
ALL
Min age
18 Years
Max age
—
Healthy volunteers
No
Inclusion Criteria:
* Histopathologically confirmed WHO grade 2 or grade WHO 3 IDHmt glioma
* Treatment with radiotherapy delivered between 1 of January 2018 and completed before or on the 30th of June 2022
* Treatment with chemotherapy delivered after radiotherapy (PCV or Temozolomide)
* Age ≥ 18 years
Exclusion Criteria:
* Prior cranial radiotherapy
* Contra-indication for MRI imaging
* Chemotherapy delivered before radiotherapy
* Dose and fractionation other that standard dose (50.4 Gy in 28 fractions for Grade 2 and 59.5 Gy in 33 fractions for Grade 3)
* Combination photon and proton therapy
* Patient has previously opted-out of the use of their data for research
Primary outcome measure(s)
Next intervention-free survival — 24 months Time from the last day of radiotherapy until the start of a new next intervention. Next intervention is defined as either neurosurgical re-operation, re-irradiation, start of new chemotherapy (other than the standard adjuvant chemotherapy), start of VGEF inhibitors such as bevacizumab, or new start of dexamethasone for either tumor progression or radiotherapy effects.
Trial sites (1)
Facility
City
Region
Status
Erasmus MC
Rotterdam
Netherlands
Recruiting
More Erasmus Medical Center trials in the Netherlands
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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