Radiotherapy in IDH Mutated Glioma: Evaluation of Late Outcomes (NCT04304300) | Clinical Trial Compass
CompletedNot Applicable
Radiotherapy in IDH Mutated Glioma: Evaluation of Late Outcomes
Netherlands80 participantsStarted 2019-12-10
Plain-language summary
Rationale: Standard postoperative treatment of isocitrate dehydrogenase 1/2 mutated grade 2 and 3 glioma (IDHmG) consists of radiotherapy and chemotherapy. The improving prognosis of these patients leads towards more emphasis on the long-term effects of treatment. Specifically radiotherapy has been implicated in the development of delayed neurocognitive deterioration. The impact of modern radiotherapy techniques (such as intensity modulated radiotherapy, volumetric modulated radiotherapy and proton beam therapy) and chemotherapy on general toxicity, late neurocognitive outcomes and imaging changes is currently unclear.
Objectives:
* To report treatment outcomes and radiation-induced toxicity from a prospective, multicentre observational cohort of IDHmG patients treated with radiotherapy and chemotherapy,
* To integrate radiotherapeutic dose distributions, imaging changes and neuropsychological outcome in IDHmG.
* To evaluate the Dutch selection criteria for proton therapy applied to IDHmG based on the outcomes collected in this observational study.
* To assess the impact of proton and photon therapy on health-related quality of life (HRQoL) and health-related economics (HR-E) in IDHmG patients.
* To collect genetic material for future translational research into the interaction between germline DNA, prognosis and radiation-induced toxicity.
Nature and extent of the burden and risks associated with participation, benefit and group relatedness: This project is a multicentre, observational cohort of patients undergoing radiotherapy and chemotherapy for IDHmG. The protocol closely follows the local guidelines for clinical follow-up. Specific to the study are extra questionnaires and specific imaging acquired during scheduled MRI's. Routine neuropsychological investigation is standard of care in Erasmus Medical Center (Erasmus MC), but not in all participating centers. We feel the additional burden of participation in this study to be low.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Histologically confirmed glioma, World Health Organisation (WHO) grade 2 or 3, IDH mutated
* Indication for standard treatment with radiotherapy and chemotherapy. For WHO grade 2 tumors 50.4 Gy relative biological equivalent (RBE) in 28 fractions. For WHO grade 3 tumors 59.4 Gy (RBE) in 33 fractions.
* Ability to comply with the protocol, including neuropsychological testing and imaging.
* Ability to understand the requirements of the study and to give written informed consent, as determined by the treating physician.
* Written informed consent.
Exclusion Criteria:
* Any prior chemotherapy for IDHmG. This includes upfront postoperative chemotherapy.
* Any prior cranial radiotherapy, including but not limited to radiotherapy for IDHmG.
* Prior invasive malignancy, except non-melanoma skin cancer, completely resected cervical or prostate cancer (with current prostate specific antigen (PSA) of less than or equal to 0.1 ng/mL).
* Extensive white matter disease visible on pre-therapy imaging (Fazekas grade ≥2)
* Contra-indication for magnetic resonance (MR) imaging (i.e. metal implants, claustrophobia)
* Any psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule in the participating hospitals
* Any other serious medical condition that could interfere with follow-up.
* Severe aphasia or language barrier interfering with assessing endpoints (i.e. completion of questionna…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.