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- Essai clinique NCT07670455
Brain Radiotherapy Imaging for High-grade Glioma Using Hypoxia Targeting Through Oxygen-Enhanced Response (BRIGHTER)
High-grade gliomas (HGGs) are the most common type of brain cancer in adults. Life expectancy for patients with HGGs is low. Radiotherapy aims to cure the tumour, but this is hard because HGGs are resistant to treatment. Among the possible causes of resistance may be tumour cells with low-oxygen levels (hypoxia). The investigators know that hypoxia reduces tumour sensitivity to radiotherapy. Using a special imaging technique called oxygen-enhanced MRI (OE-MRI), the investigators can try to identify areas of the tumour with hypoxia. The investigators could then give those areas a higher dose of radiotherapy. This might improve tumour control. This study aims to see if OE-MRI can find low-oxygen areas in HGGs. The study will also assess whether higher radiotherapy doses can be simulated in these regions.
Project summary:
- Set up the OE-MRI process at Leeds Cancer Centre (LCC). OE-MRI settings will be tested on healthy volunteer participants to ensure the images are as good as possible.
- Participant Imaging. Patient participants with HGG will be recruited to take part. OE-MRI will be used to image participants during their treatment and track low-oxygen areas before treatment, halfway through treatment and 3 months after treatment has finished.
- Dose Escalation Assessment. Computer programs will be used to design radiotherapy treatments to test if higher radiation doses to the tumour's low-oxygen areas can better control the cancer. This will help understand if this targeted approach has potential benefits. This is modelling and will not alter routine clinical patient participant management.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Christopher J. H. Pagett, MSc, MPhys
- Numéro de téléphone: +441132067969
- E-mail: christopher.pagett@nhs.net
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- ≥18yrs.
- Participants able to communicate with staff and safely comply with the study procedures.
- Participants to provide informed written consent.
Exclusion Criteria:
- Participants with any MRI contraindications including inability to lie flat in MRI scanner, claustrophobia and no foreign bodies, medical devices or other items which are considered an MRI contraindication.
- Geographically remote patients unable to agree to imaging schedule.
- Participants with illness or condition which means they cannot understand the requirements of the study.
- Participants with cardiac or pulmonary disease that are unable to tolerate the flow of oxygen delivered via a mask.
- Participants who have previously been treated with bleomycin (a chemotherapy used to treat some cancers including Hodgkin lymphoma and germ cell tumours).
- Participants with contraindications to gadolinium-based contrast agent
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Diagnostique
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: OE-MRI in high-grade glioma
Participants with high-grade glioma undergo oxygen-enhanced MRI (OE-MRI) at multiple time points (pre-treatment, mid-radiotherapy, and post-treatment) to assess tumour hypoxia.
Oxygen is administered as a physiological stimulus during imaging.
Data are used to evaluate hypoxia and to perform radiotherapy dose escalation modelling.
No changes to standard clinical care are made.
|
Oxygen-enhanced magnetic resonance imaging (OE-MRI) is performed to assess tumour hypoxia.
Participants undergo MRI scanning while breathing oxygen administered as a physiological stimulus to generate contrast related to tissue oxygenation.
Imaging is conducted at multiple time points during standard treatment.
The procedure is used for assessment only and does not alter clinical management.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Quantification of tumour hypoxia using oxygen-enhanced MRI (OE-MRI)
Délai: From enrolment to the 3 month post-radiotherapy follow-up imaging
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This study aims to determine whether a special MRI- oxygen-enhanced magnetic resonance imaging (OE-MRI)- can effectively show regions of low oxygen in patients with aggressive brain tumours (high-grade glioma (HGG)), and whether this information can help doctors target radiotherapy more accurately and improve patient outcomes.
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From enrolment to the 3 month post-radiotherapy follow-up imaging
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Maladies du cerveau
- Maladies du système nerveux central
- Maladies du système nerveux
- Tumeurs par site
- Tumeurs
- Tumeurs par type histologique
- Tumeurs, glandulaires et épithéliales
- Signes et symptômes respiratoires
- Astrocytome
- Gliome
- Tumeurs, neuroépithéliales
- Tumeurs neuroectodermiques
- Tumeurs, cellules germinales et embryonnaires
- Tumeurs, tissu nerveux
- Tumeurs du système nerveux
- Tumeurs du système nerveux central
- Hypoxie
- Conditions pathologiques, signes et symptômes
- Signes et symptômes
- Glioblastome
- Tumeurs cérébrales
- Hypoxie, Cerveau
Autres numéros d'identification d'étude
- 26/YH/0136
- NIHR306045 (Autre subvention/numéro de financement: National Institute for Health and Care Research (NIHR), UK)
- 349630 (Autre identifiant: Integrated Research Application System (IRAS), UK)
- 64862 (BRIGHTER) (Autre identifiant: NIHR Clinical Research Network (Central Portfolio Management System, CPMS), UK)
Plan pour les données individuelles des participants (IPD)
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Informations sur les médicaments et les dispositifs, documents d'étude
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