UnknownNot Applicable

Evaluation of ExacTrac® Imaging Device for Repositioning Quality of Patients Undergoing an External ENT Radiotherapy

France45 participantsStarted 2021-01-13

Plain-language summary

Monocentric, category 2 study according to Jardé Law (minimal risks and constraints) of three prospective cohorts: Tumors located at the oropharynx, the oral cavity and the larynx-hypopharynx. The main objective is to evaluate the 3D vector of the absolute residual positioning error observed with the CBCT reference imaging, after repositioning performed with ExacTrac®. The secondary objectives are to evaluate: 1) the rate of residual errors ≥2mm (translations in all directions) and ≥2 ° (rotations in all directions) on CBCT imaging after repositionning with the ExacTrac® system; 2) the Evaluation of intrafraction movements amplitude by analyzing the ExacTrac® images taken during the irradiation; 3) the evolution of the relative position of the volume of the tumor at high risk of recurrence (CTVTHR) in relation to the spine over the entire duration of the treatment; 4) the impact of patient's weight loss, the advancement of RT and the realization of a chemotherapy / targeted therapy concomitant with RT, on the evolution of the relative position of the CTVTHR in relation to the column vertebral; 5) the dosimetric consequence of a strict bone registration on the CTVTHR coverage by calculating the post-treatment dose on the CBCT imaging.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Age ≥ 18 years old * Patient requiring an ENT radiotherapy with intensity modulation (IMR) in the oropharynx, oral cavity, hypopharynx or larynx with bilateral irradiation of the lymph node areas * Treatment planned on an accelerator equipped with a CBCT and the ExacTract® device * Patient affiliated to a social security system * Informed consent dated and signed Exclusion Criteria: * Pregnant or breastfeeding woman * Patient under totorship, curatorship or legal protection

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Verification of the feasibility of using the ExacTrac® system as a replacement for CBCT imaging for pre-treatment repositioning of ENT sphere cancers in adult patients receiving CRMI on a linear accelerator equipped with 2 modalities

Timeframe: Until the end of the radiotherapy treatment

Trial details

NCT IDNCT04670991

SponsorCentre Leon Berard

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2024-04-13

Contact for this trial

METZGER Séverine

+33 4.78.78.27.86 severine.metzger@lyon.unicancer.fr

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