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Mechanically-assisted Ventilation in the Treatment of Moving Tumours With Photon and Proton Therapies

12. juli 2019 opdateret af: Cliniques universitaires Saint-Luc- Université Catholique de Louvain

Added Value of Mechanically-assisted Ventilation in the Treatment of Moving Tumours (Thoracic/Upper Abdomen) With Photon and Proton Therapies.

Mechanical ventilation can be used to impose a completely regular pattern of breathing frequency and inflation volume on the patient for as long as required. This would considerably improve the reproducibility of the internal motion parameters, and thus facilitate the implementation of respiratory-synchronized techniques such as gating, tracking and four-digital optimization.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

23

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Belgien
      • Brussels, Belgien, 1200
        • Cliniques Universitaires Saint-Luc

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

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

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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).
Diagnostisk test: Non-invasive mechanically-assisted ventilation
Mechanically ventilation will be done through facial masks connected to a respirator. Volunteers/patients are fully conscious during the ventilation.
Diagnostisk test: Dynamic MRI acquisition
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
Eksperimentel: 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).
Diagnostisk test: Non-invasive mechanically-assisted ventilation
Mechanically ventilation will be done through facial masks connected to a respirator. Volunteers/patients are fully conscious during the ventilation.
Diagnostisk test: Dynamic MRI acquisition
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
Eksperimentel: 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).
Diagnostisk test: Non-invasive mechanically-assisted ventilation
Mechanically ventilation will be done through facial masks connected to a respirator. Volunteers/patients are fully conscious during the ventilation.
Diagnostisk test: Planning 4D-CT
In order to perform in-silico planning, 4D-CT will be acquired on patients under non-invasive mechanically-assisted ventilation

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Measure in millimeters of the internal motion during non-invasive mechanically assisted ventilation, based on MRI images
Tidsramme: within 12 months
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.
within 12 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Tolerance assessment
Tidsramme: within 12 months
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.
within 12 months
Internal motion reproducibility with non-invasive mechanically assisted ventilation.
Tidsramme: Within 12 months
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.
Within 12 months
Dosimetric comparison
Tidsramme: within 12 months
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.
within 12 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Cliniques universitaires Saint-Luc- Université Catholique de Louvain

Efterforskere

  • Ledende efterforsker: Xavier Geets, MD, PhD, Cliniques Universitaires Saint-Luc

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

30. juni 2017

Primær færdiggørelse (Faktiske)

1. juni 2019

Studieafslutning (Faktiske)

1. juni 2019

Datoer for studieregistrering

Først indsendt

27. juni 2017

Først indsendt, der opfyldte QC-kriterier

20. juli 2017

Først opslået (Faktiske)

24. juli 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. juli 2019

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. juli 2019

Sidst verificeret

1. juli 2019

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 2017/23MAI/294

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

UBESLUTET

IPD-planbeskrivelse

Not decided at this moment

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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Kliniske forsøg med Leverkræft

Kliniske forsøg med Non-invasive mechanically-assisted ventilation

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