- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT03226925
Mechanically-assisted Ventilation in the Treatment of Moving Tumours With Photon and Proton Therapies
Added Value of Mechanically-assisted Ventilation in the Treatment of Moving Tumours (Thoracic/Upper Abdomen) With Photon and Proton Therapies.
Aperçu de l'étude
Statut
Description détaillée
This will be a three-phase analysis :
First, different ventilation modes will be tested and compared on healthy volunteers. This phase will be analysed with a ventilator and with dynamic MRI in order to measure the movement of anatomical structures in each ventilation mode (intra-fraction analysis). Further, we will repeat these exams in order to compare them with the first ones, in order to analyse the reproducibility and baseline shifts (inter-fraction analysis).
Here are the different ventilation modes
- spontaneous breathing
- physiologic ventilation mode :
- shallow ventilation mode
- slow ventilation mode
- Jet Ventilation mode
Second phase will be done with patients that are intended to have a radiation treatment for thoracic or upper abdominal tumors. All the previous ventilation modes will be analysed during repeated MRI, again in order to perform intra- and inter-fraction analysis of the tumor motion.
Third phase also concerned patients intended to have a radiation treatment. It will be an in-silico-planning analysis in order to quantify dosimetric outcomes of these ventilation modes.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Brussels, Belgique, 1200
- Cliniques Universitaires Saint-Luc
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- No comorbidity for healthy volunteers
- Cancer patients with either lung or upper abdomen (liver/pancreas) tumours treated with radiation therapy.
Exclusion Criteria:
- severe lung disease or emphysema
- previous history of pneumothorax
- claustrophobia
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: Non randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: Healthy volunteers on ventilation
Dynamic MRI acquisition will be performed at two different time points with 10 healthy volunteers under non-invasive mechanically-assisted ventilation with a respirator.
Different modes will be compared (spontaneous, physiologic, shallow, slow and jet ventilation).
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Mechanically ventilation will be done through facial masks connected to a respirator.
Volunteers/patients are fully conscious during the ventilation.
Dynamic MRI acquisition are specific dynamic sequences intended to visualise the motion of internal structures (anatomical structures or tumour) under non-invasive mechanically-assisted ventilation
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Expérimental: Cancer patients on ventilation
Dynamic MRI acquisition will be performed at two different time points with 10 patients (intended for a radiation treatment of their thoracic or upper abdominal tumours) under non-invasive mechanically-assisted ventilation with a respirator.
Different modes will be compared (spontaneous, physiologic, shallow, slow and jet ventilation).
|
Mechanically ventilation will be done through facial masks connected to a respirator.
Volunteers/patients are fully conscious during the ventilation.
Dynamic MRI acquisition are specific dynamic sequences intended to visualise the motion of internal structures (anatomical structures or tumour) under non-invasive mechanically-assisted ventilation
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Expérimental: Planning with patients on ventilation
Planning 4D-CT will be performed with 10 patients (intended for a radiation treatment of their thoracic or upper abdominal tumours) under non-invasive mechanically-assisted ventilation with a respirator.
Different ventilation modes will be compared (spontaneous, physiologic, shallow, slow and jet ventilation).
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Mechanically ventilation will be done through facial masks connected to a respirator.
Volunteers/patients are fully conscious during the ventilation.
In order to perform in-silico planning, 4D-CT will be acquired on patients under non-invasive mechanically-assisted ventilation
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
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Measure in millimeters of the internal motion during non-invasive mechanically assisted ventilation, based on MRI images
Délai: within 12 months
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This analysis will be based on dynamic MRI analysis made with healthy volunteers and also patients on non-invasive mechanically assisted ventilation.
A well defined anatomical structure will be selected for the healthy volunteers while the tumor will be tracked in patients.
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within 12 months
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Tolerance assessment
Délai: within 12 months
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During all these acquisitions, the tolerance to the non-invasive mechanically assisted ventilation will be assessed by all the participants through a 5-steps scale.
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within 12 months
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Internal motion reproducibility with non-invasive mechanically assisted ventilation.
Délai: Within 12 months
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This analysis will be done by comparing the motion of the internal structures/tumors at two different time points (MRI acquisition at two different time points).
All these acquisitions will obviously be done in the same conditions on non-invasive mechanically assisted ventilation.
Motion reproducibility will be analysed by comparing the baseline positions of anatomical structures/tumors on MRI images and the measures in millimeters of motion of the same anatomical structures/tumors.
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Within 12 months
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Dosimetric comparison
Délai: within 12 months
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This dosimetric comparison will be done in order to assess the impact of non-invasive mechanically-assisted ventilation on dose planning and delivery.
Difference in dose (in Gy) to organ at risks will specially be compared through the DVH (dose-volume histogram) analysis.
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within 12 months
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Collaborateurs et enquêteurs
Les enquêteurs
- Chercheur principal: Xavier Geets, MD, PhD, Cliniques Universitaires Saint-Luc
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
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
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 2017/23MAI/294
Plan pour les données individuelles des participants (IPD)
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Description du régime IPD
Informations sur les médicaments et les dispositifs, documents d'étude
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