Optimizing Proton Beam Treatment for Low Grade Glioma

Prospective Phase II Trial to Assess Feasibility of Individualized, Model-guided Optimization of Proton Beam Treatment Planning in Patients With Low Grade Glioma Multicentric, Prospective Interventional, Randomized, Observer Blind Two Arm (Active Control), Parallel Group Investigator-initiated Phase II Trial

Phase 2 Interventional University Hospital Heidelberg · NCT05964569

This study is testing a new way to plan proton beam treatment for people with low-grade glioma to see if it can improve results and reduce side effects compared to standard treatment.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital Heidelberg Academic / other
Locations1 site (Heidelberg)
Trial IDNCT05964569 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the feasibility of using individualized, model-guided optimization for proton beam treatment planning in patients diagnosed with low-grade glioma. The study aims to enhance treatment efficacy while minimizing long-term side effects associated with radiotherapy, such as neurocognitive decline and secondary tumors. Participants will receive either a model-optimized treatment plan or a standard treatment plan to assess the potential benefits of the new approach. The trial is particularly focused on understanding and mitigating the risk of late contrast-enhancing brain lesions that can occur post-treatment.

Who should consider this trial

Good fit: Ideal candidates include adults over 18 with histologically confirmed low-grade glioma who require radiotherapy.

Not a fit: Patients with previous cerebral irradiation or contraindications for MRI may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve the quality of life for patients by reducing treatment-related side effects.

How similar studies have performed: While large randomized trials are lacking, smaller studies have shown promising results for similar model-guided treatment approaches.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \> 18 years
* histologically proven low-grade glioma
* indication for definitive or adjuvant radiotherapy
* ability to understand character and personal consequences of the clinical trial
* written informed consent

Exclusion Criteria:

* previous cerebral irradiation
* contraindication for contrast-enhanced MRI
* neurofibromatosis
* participation in another clinical trial with competing objectives

Where this trial is running

Heidelberg

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Low Grade Glioma
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.