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Achieving a Better Outcome Through Limiting the Glioblastoma Clinical Target Volume

Impact of Reducing the Irradiation Volume on Survival, Toxicity, and Quality of Life in Patients With Glioblastoma Treated With Radiochemotherapy: a Prospective Multicenter Randomised Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06719440
Acronym
BELGICA
Enrollment
347
Registered
2024-12-05
Start date
2025-05-12
Completion date
2031-10-01
Last updated
2026-02-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glioblastoma, Radiotherapy Side Effect

Brief summary

The objective of the BELGICA trial is to evaluate if radiotherapy could be given in a more focused manner in patients with glioblastoma in order to reduce side effects and improve quality of life. The glioblastoma (GBM) is the most common and aggressive tumour originating from the brain, affecting approximately 600 patients per year in Belgium. The treatment consists in surgical resection of the tumour (when feasible), followed by a combination of radiotherapy and chemotherapy. Despite multimodal treatment (surgery, radiotherapy, and chemotherapy), the life expectancy of patients with GBM remains limited, with an average survival of 12-18 months and only 5% of patients surviving more than 5 years. In addition to limited survival, most patients with GBM experience impaired quality of life, both because of the disease and treatments. Radiotherapy is a treatment where radiation is used to kill cancer cells. In GBM, radiotherapy is targeted at the tumour (or tumour bed if the tumour was resected) with a safety margin around it (the "Clinical Target Volume" or CTV) to account for potential microscopic spread of the tumour. The downside of this safety margin is that a substantial amount of brain tissue is irradiated, which can lead to treatment toxicity. Reducing the CTV margin would enable to decrease the volume of brain being irradiated and could thereby allow to reduce the side effects of brain irradiation. The BELGICA trial (Achieving a BEtter outcome through Limiting the GlIoblastoma Clinical tArget volume) is a national multicentre trial which will evaluate if reducing the irradiation volume in glioblastoma is safe and allows for lowering side effects and improving quality of life.

Interventions

RADIATIONRadiotherapy (CTV=10mm)

Radiotherapy with reduced irradiation volume CTV=10mm

RADIATIONRadiotherapy (CTV=15mm)

Radiotherapy with standard irradiation volume CTV=15mm

Sponsors

Cliniques universitaires Saint-Luc- Université Catholique de Louvain
Lead SponsorOTHER
Belgium Health Care Knowledge Centre
CollaboratorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Intervention model description

single blinded, randomized, parallel

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants capable of giving informed consent * Age \>= 18 y.o. * WHO performance status 0-2 * Newly diagnosed glioblastoma (Histologically proven glioblastoma per WHO 2021 classification based on biopsy or resection ) * Indication of chemoradiotherapy confirmed by multidisciplinary tumour board

Exclusion criteria

* Participation in a competing trial * Known contraindication to undergo MRI scans

Design outcomes

Primary

MeasureTime frameDescription
Overall SurvivalFrom randomization to the end of the studyNumber of days from date of randomization to the date of death due to any cause

Secondary

MeasureTime frameDescription
Neurocognitive functioningat baseline, 1 month after radiotherapy and at 1 yearHopkins verbal learning test revised; Trail Marking Test A \& B; Controlled Oral Word Association Test
Radiation-induced toxicityFrom enrollment until end of follow-up (2 years)Assessment of fatigue, headache, nausea, alopecia and radiatio dermatitis according to the CTCAE assessment score. Score ranges from Grade 1 to Grade 5, with higher grades resulting in more severe symptoms.
Health-related Quality of LifeFrom enrollment until end of follow-up (2 years)EQ-5D-5L; QLQ-C30; QLQ-BN20
Progression-free survivalFrom randomization until end of follow-up (2 years)Length of time during and after treatment for a disease, such as cancer, that a patient lives with the disease without it worsening
Pattern of recurrenceFrom randomization until end of follow-up (2 years)(in case of progression) Manner in which the tumor returns after a period of improvement or remission. It often involves tracking the frequency, timing, and location of the tumor's return
Anti-edema therapyFrom randomization until end of follow-up (2 years)Recording of the needs of anti-edema therapy

Countries

Belgium

Contacts

CONTACTDario Di Perri, MD
dario.diperri@saintluc.uclouvain.be+32 2 764 47 52
CONTACTChloë De Laet
Belgica.kce@saintluc.uclouvain.be+32 2 764 82 75
PRINCIPAL_INVESTIGATORDario Di Perri, MD

Cliniques universitaires Saint-Luc- Université Catholique de Louvain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026