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Shorter radiation course for advanced prostate cancer tested for fewer side effects

NCT ID NCT05656794

Symptom relief Sponsor: University Health Network, Toronto Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is for men with prostate cancer that has spread to other parts of the body. It compares two different schedules of radiation to the prostate: one given every other day for 2 weeks, and another given once a week for 6 weeks. The goal is to see if the shorter schedule causes fewer side effects while still controlling the cancer.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2023

Expected to finish

Aug 2031

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 100 years

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Histologically-proven prostate cancer * Presence of low-volume or high-volume metastases (high volume defined as the presence of visceral metastases or ≥4 bone lesions with at least 1 lesion beyond the vertebral bodies and pelvis.) * Planned to or receiving systemic treatment ADT +/- ARAT as per physician discretion (Previous chemotherapy allowed if completed more than 6 weeks prior to randomization.) * Planned for EBRT * ECOG 0 or 1 * Age 18 years or older Exclusion Criteria: * Prior radiotherapy to pelvis * Active ulcerative colitis or Crohn's Disease, at discretion of treating physician * Any condition where radiotherapy is contraindicated

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Conditions

The condition(s) this trial relates to.

metastatic prostate carcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Prostate metastases

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University Health Network, Princess Margaret Hospital

    RECRUITING

    Toronto, Ontario, M5G 2M9, Canada

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