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Magnetic Resonance Imaging (MRI) for the Delineation of Organs At Risk (OAR) and Target Volumes in Lung Cancer Patients (MR-Lung)

4. juli 2019 oppdatert av: Sally Falk, The Christie NHS Foundation Trust

The Christie NHS Foundation Trust is one of seven sites worldwide within the Atlantic consortium that is developing the Elekta MR-Linac (MRL) prior to commercial release at the end of 2017. The MRL allows MR images of patients to be acquired before, during and following radiotherapy (RT). One area where The Christie is taking the lead within the consortium is the application of the MRL for lung imaging and treatment, an area where MRI has hardly been used.

MRI scans provide greater soft tissue contrast than CT scans which can aid in the accurate delineation of organs at risk (OAR) and tumour target volumes for MRL and routine treatment. In addition, MRI can provide real time imaging which can aid in the accurate motion characterisation of these volumes. The addition of functional diffusion weighted imaging (DWI) has also proven to be useful in the discrimination of malignant from benign lesions; for lymph node detection and for the differentiation of tumour from atelectasis.

Auto-contouring has the potential to speed workflows at various points in the clinical pathway. This may be inter-patient contour propagation used pre-treatment for plan creation, or may be during online or offline adaptive workflows propagating contours through imaging acquired as treatment progresses. In collaboration with industry the investigators will be testing such algorithms on these images retrospectively.

In addition, the investigators would also like to evaluate patients' experiences of CT and MRI scans and determine which scanning method is preferred. Other studies have explored patient experiences of MRI compared to CT but not in the lung cancer patient population.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Participants on this study will have two MRI scans in addition to the CT treatment planning scan, which is standard of care and cone beam CT scans during treatment, which are also standard of care. One of the MR scans will be close to the start of treatment and the other will be approximately 2 weeks after the start of radiotherapy treatment. If the patient has had a PET scan within 4 weeks of the 1st MR scan then the PET images will also be used for target volume delineation. If the PET scan > 4 weeks old, it can be repeated as per standard practice.

The MRI protocol includes up to 60 minutes of scanning which will include anatomical, respiratory dynamic and functional diffusion weighted imaging (DWI). The patient will be set up according to the treatment position on the MR scanner, using flat couch. The MR scans will not be used for clinical decision making.

Clinicians will then contour organs at risk (OARs) and target volumes on both the CT (guided by PET if available) and MRI scans and contours will be compared to determine the usefulness of MRI for radiotherapy treatment planning.

The contoured data sets will be fully anonymised, and used in house and shared with Elekta to assist with the development of automatic contouring / tumour tracking software, comparing CT to cone beam CT (CBCT) tracking (standard of care) with MR to MR tracking (experimental).

To assess experiences of MRI and CT, participants will be asked to complete baseline self-report questionnaires and additional questionnaires after MRI and CT scans. A small sample of participants will also be invited to participate in a semi-structured interview to explore their experiences in greater depth.

Studietype

Intervensjonell

Registrering (Faktiske)

30

Fase

  • Ikke aktuelt

Kontakter og plasseringer

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

Studiesteder

      • Manchester, Storbritannia, M20 4BX
        • The Christie NHS Foundation Trust

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

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Stage I-III Non-Small Cell Lung Cancer (NSCLC) or Small Cell Lung Cancer (SCLC) (histological diagnosis not mandatory)
  • Tumour Characteristics:

    • Size ≥ 3 cm in diameter
    • Positions: range of tumour positions with at least 10 of the participants having lower lobe tumours
  • Patients planned for radical radiotherapy
  • Eastern Co-operative Oncology Group (ECOG) Performance Status (PS) 0-2

Exclusion Criteria:

  • Any contraindications to MR identified after MR safety screening including completion of an MR Safety Screening Form
  • Unable to lie supine for 60 minutes
  • Pregnancy

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: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: MRI scan
All participants will undergo 2 MRI scans - 1 at the time of their radiotherapy planning scan & 1 after approx. 2 weeks of radiotherapy treatment.
All participants will undergo 2 MRI scans - 1 at the time of their radiotherapy planning scans & 1 after approx. 2 weeks of radiotherapy treatment.

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
Measure differences between target and OAR volumes contoured on PET, CT and MRI images.
Tidsramme: 18 months
18 months

Sekundære resultatmål

Resultatmål
Tidsramme
Measure differences in inter-patient OAR volumes and intra-patient target and OAR volumes using MRI and CT.
Tidsramme: 18 months
18 months
Measure patient experiences of CT and MRI using questionnaires and interviews.
Tidsramme: 18 months
18 months

Samarbeidspartnere og etterforskere

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

Etterforskere

  • Hovedetterforsker: Corinne Faivre-Finn, PhD, University of Manchester & The Christie NHS Foundation Trust

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)

11. september 2017

Primær fullføring (Faktiske)

21. januar 2019

Studiet fullført (Faktiske)

21. januar 2019

Datoer for studieregistrering

Først innsendt

16. januar 2017

Først innsendt som oppfylte QC-kriteriene

7. februar 2017

Først lagt ut (Anslag)

9. februar 2017

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

8. juli 2019

Siste oppdatering sendt inn som oppfylte QC-kriteriene

4. juli 2019

Sist bekreftet

1. juli 2019

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

The contoured data sets will be fully anonymised, and used in house and shared with Elekta to assist with the development of automatic contouring / tumour tracking software, comparing CT to cone beam CT (CBCT) tracking (standard of care) with MR to MR tracking (experimental).

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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