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Minor2 versionsRe-verified since Jul 29, 2025, no change to tracked fieldsv46-v47
NotableTrial status: Suspended to Recruiting
Site details revised
v45
MinorRe-verified, no change to tracked fieldsv44
StoppedTrial status: Recruiting to SuspendedSponsor's reason: Interim Analysis
Site details revised
v43
NotablePrimary completion date: Oct 2023 to Jan 2027
Study completion date: Jul 2026 to Jan 2031
v42
Show 40 earlier versionsHide 40 earlier versions
MinorStart date changed from estimate of May 2022 to May 16, 2022v41
MinorStart date: Apr 2022 to May 2022v40
MinorStart date: Mar 2022 to Apr 2022v39
MinorStart date: Feb 2022 to Mar 2022v38
MinorStart date: Jan 2022 to Feb 2022v37
MinorStart date: Dec 2021 to Jan 2022v36
MinorStart date: Nov 2021 to Dec 2021v35
MinorStart date: Oct 2021 to Nov 2021v34
NotablePrimary completion date: Jul 1, 2022 to Oct 2023
Study completion date: Jul 1, 2026 to Jul 2026
Start date: Sep 2021 to Oct 2021
v33
MinorStart date: Aug 2021 to Sep 2021v32
NotableTrial status: Suspended to Recruiting
Site details revised
v31
NotableStart date: Jun 2021 to Aug 2021v30
MinorStart date: May 2021 to Jun 2021v29
MinorStart date: Apr 2021 to May 2021v28
MinorStart date: Mar 2021 to Apr 2021v27
MinorStart date: Feb 2021 to Mar 2021v26
StoppedTrial status: Recruiting to SuspendedSponsor's reason: Protocol Modifications
Site details revised
v25
MinorStart date: Jan 2021 to Feb 2021v24
MinorStart date: Dec 2020 to Jan 2021v23
MinorStart date: Nov 2020 to Dec 2020v22
MinorStart date: Oct 2020 to Nov 2020v21
MinorStart date: Sep 2020 to Oct 2020v20
MinorStart date: Aug 2020 to Sep 2020v19
MinorStart date: Jul 2020 to Aug 2020v18
NotableTrial status: Suspended to Recruiting
Site details revised
v17
MinorStart date: Jun 2020 to Jul 2020v16
MinorStart date: May 2020 to Jun 2020v15
MinorStart date: Apr 2020 to May 2020v14
MinorStart date: Mar 2020 to Apr 2020v13
MinorStart date: Feb 2020 to Mar 2020v12
NotableStart date: Dec 2019 to Feb 2020v11
MinorRe-verified, no change to tracked fieldsv10
MinorStart date: Nov 2019 to Dec 2019v9
MinorStart date: Oct 15, 2019 to Nov 2019v8
NotableStart date: Sep 15, 2019 to Oct 15, 2019v7
NotableStart date: Aug 15, 2019 to Sep 15, 2019v6
NotableStart date: Jul 2, 2019 to Aug 15, 2019v5
StoppedTrial status: Recruiting to SuspendedSponsor's reason: Protocol Modificationsv4Show 4 more changesShow less
Start date: Jun 2, 2019 to Jul 2, 2019
Primary completion date: Jun 1, 2022 to Jul 1, 2022
Study completion date: Jun 1, 2026 to Jul 1, 2026
Site details revised
NotableStart date: May 2, 2019 to Jun 2, 2019v3
NotableTrial status: Not Yet Recruiting to Recruiting
Start date: Jun 1, 2019 to May 2, 2019
Site details revised
v2
MinorStudy First Submitted
Stopped: an ongoing trial was terminated, suspended or withdrawn.
Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
Minor: routine progress and housekeeping, such as sites added or enrollment closed.
This trial will investigate a novel 3-fraction radiation regimen for participants undergoing breast-conserving therapy (BCT) for early breast cancer that will: 1) significantly reduce the duration of treatment and can be completed in one-week (5 working days) and 2) MRI-guided radiotherapy (MRIdian) would limit the volume of normal tissue radiated and therefore resultant toxicity. The hypothesis is that 3-fraction radiation therapy can be delivered safely without compromising the therapeutic ratio. Participants can expect to be on study for follow up up to 5 years.