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Study identifier: NCT05909111 Synced from ClinicalTrials.gov · July 29, 2026
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MR-Only Based Adaptive External Beam Radiation Therapy of Cervical Cancer on Ethos Therapy: Feasibility Study

Condition: Cervical Cancer · Online Adaptative Radiation Therapy · MRI  ·  Sponsor: Recherche clinique

PhaseNA
Planned participants15
Who can joinFemale, 18 Years to no upper limit
Healthy volunteersNo

About this study

Current management of patients treated with External Beam Radiation Therapy (EBRT) for cervical cancer with a classical Image-guided Radiation Therapy (IGRT) strategy involves a complex, not entirely satisfactory, treatment workflow. Indeed, in our institution, two workflows have been designed to take into account the inter-fraction motion of cervix and uterus : an Internal Target Volume (ITV)-based approach and a plan of the day strategy requiring both several planning-CT (Computed Tomography) acquisitions with variable bladder filling.The upcoming installation of a Varian Ethos therapy system in our institution will allow us to implement a less cumbersome online adaptive radiotherapy strategy (oART), which, by conforming to the daily anatomy, will enable a reduction in the Clinical Target Volume (CTV) to Planning Target Volume (PTV) margins leading to an expected reduction in dose delivered to organs at risk (OAR) .On the other hand, MR (Magnetic Resonance)-only treatment planning is playing an increasing role in radiotherapy, notably in the treatment of prostate cancer. MR-only workflows are known (a) to provide the most reliable delineation in soft tissues and (b) to decrease spatial uncertainties by suppressing the Magnetic Resonance Imaging (MRI)-CT co-registration. Regarding the management of cervical cancer, the importance of MRI is well established and its use becomes essential. Combining a MR-only workflow with an adaptative one on the Varian Ethos system, could lea…

This description comes directly from the study's public registry record.

Talk to the study team

Catherine Khamphan, PhD  ·  0490276543  ·  c.khamphan@isc84.org

Aurélien Badey  ·  0490276563  ·  a.badey@isc84.org

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Locations (1)

Institut Sainte CatherineAvignon, FranceRecruiting

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Source record: clinicaltrials.gov/study/NCT05909111