CI

At a glance

ClinicalIndex Comparison Record
N/AActive· 74 enrolled
Drug / intervention
Calypso beacon implant +1 moredevice
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03254420
NCT03254420N/AActive

Randomized Phase II Study Evaluating Late Toxicity Following Intensity-Modulated Radiotherapy and Two Image-Guided Strategies With Corresponding Treatment Margins. (RCMIGI)

Institut du Cancer de Montpellier - Val d'Aurelle·interventional·Posted Aug 18, 2017·Updated Jun 23, 2026

In Brief

A clinical study evaluating Calypso beacon implant and moderate hypofractionation Radiotherapy for Prostate Cancer. Active but no longer recruiting, targeting 74 participants across 1 site.

Detailed Summary

The Calypso® System (Varian Medical Systems, Inc., Palo Alto, CA) is a recent technology using electromagnetic transponders implanted within the prostate. It is a real-time target tracking system that takes into account both inter- and intrafractional target motion. So the exact position and movement of the prostate can be determined during radiation therapy treatment. The aim of this study is to assess pelvic late toxicity rate after intensity-modulated radiotherapy (IMRT) when using the Calypso® System with a reduction of treatment margins. In this randomized study, patients will receive IGRT treatment using the Calypso system or a conventional IGRT treatment.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsProstate Cancer
CountriesFrance
Collaborators--

Timeline

N/AActive
2017201820192020202120222023202420252026202720282029
First PostedAug 18, 2017
Enrollment StartAug 30, 2016
Primary CompletionSep 15, 2022
Study CompletionDec 1, 2028
TodayJul 2, 2026
Enrollment to primary: 6.0 yearsPosted 8.9 years ago

Interventions

Calypso beacon implantdevice

Calypso beacon implant before radiotherapy

moderate hypofractionation Radiotherapyradiation

moderate hypofractionation Radiotherapy