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NCT04592887 · ClinicalTrials.gov registry record · NA

Feasibility Study of FLASH Radiotherapy for the Treatment of Symptomatic Bone Metastases

A NA study, sponsored by Varian, a Siemens Healthineers Company.

Completed
Registry status
NA
Development phase
10
Enrollment target

NCT04592887: Completed NA study, sponsored by Varian, a Siemens Healthineers Company.

NCT04592887 is a NA study that has completed, run by Varian, a Siemens Healthineers Company. The registered enrollment target is 10 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04592887, a NA study, has completed, sponsored by Varian, a Siemens Healthineers Company.

COMPLETED
Registry status
NA
Development phase
10 participants
Enrollment target

Study Summary

This purpose of this study is to assess the feasibility of FLASH radiotherapy for the palliative treatment of painful bone metastases. FLASH radiotherapy is radiation treatment delivered at ultra-high dose rates compared to conventional radiation treatment.

Primary Outcome

Number of participants with total time on table under one hour. The investigational site staff will measure the time for participant set-up and positioning on the treatment couch, imaging and FLASH treatment delivery. The workflow feasibility outcome measure is met for an individual subject if total time on table is measured as less than one hour. The outcome measure data table provides the mean and full range of time on table (as measured in minutes) for the 10 participants. The participant wi

Interventions

  • RADIATION FLASH Radiotherapy

Trial Details

FieldValue
Enrollment Target 10 participants
Start Date 2020-11-03
Est. Completion 2023-03-27
Phase NA

What the finished NCT04592887 record still lists

NCT04592887 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 10 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).

The record links to 0 conditions, and to 1 intervention - of which FLASH Radiotherapy is the first listed.

NCT04592887 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04592887 about?

NCT04592887 is a clinical study titled "Feasibility Study of FLASH Radiotherapy for the Treatment of Symptomatic Bone Metastases". This purpose of this study is to assess the feasibility of FLASH radiotherapy for the palliative treatment of painful bone metastases. FLASH radiotherapy is radiation treatment delivered at ultra-high dose rates compared to conventional radiation treatment.

What is the current status of trial NCT04592887?

This trial is currently completed. It is a NA study. The enrollment target is 10 participants. The study started on 2020-11-03. Estimated completion is 2023-03-27.

What interventions are being tested in trial NCT04592887?

The interventions under investigation include: FLASH Radiotherapy (RADIATION).

Who is sponsoring clinical trial NCT04592887?

This trial is sponsored by Varian, a Siemens Healthineers Company, which has 16 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04592887's enrollment target sits among peer trials

10 1927th of 2000 higher than 26 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04592887, the US trial registry maintained by the National Library of Medicine. NCT04592887 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.