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

12. juli 2019 oppdatert av: 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.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert 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.

Studietype

Intervensjonell

Registrering (Faktiske)

23

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

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

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: Ikke-randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 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
Eksperimentell: 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
Eksperimentell: 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

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
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
Tiltaksbeskrivelse
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Cliniques universitaires Saint-Luc- Université Catholique de Louvain

Etterforskere

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

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

30. juni 2017

Primær fullføring (Faktiske)

1. juni 2019

Studiet fullført (Faktiske)

1. juni 2019

Datoer for studieregistrering

Først innsendt

27. juni 2017

Først innsendt som oppfylte QC-kriteriene

20. juli 2017

Først lagt ut (Faktiske)

24. juli 2017

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

15. juli 2019

Siste oppdatering sendt inn som oppfylte QC-kriteriene

12. juli 2019

Sist bekreftet

1. juli 2019

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 2017/23MAI/294

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

UBESLUTTE

IPD-planbeskrivelse

Not decided at this moment

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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