RE-irradiation for isolated FOCal recurrence of prostate cancer with ultrahypofracted SBRT: the RE-FOCUS study - pushing the boundaries of precision and efficacy
NCT ID NCT07810660
First seen Sep 09, 2026 · Last updated Sep 09, 2026
Summary
Prostate cancer (PCa) is one of the most frequently diagnosed malignancies in men worldwide, with the highest prevalence observed in developed countries. Patients affected by localized disease can be treated with several local modalities, including radical prostatectomy (RP), external beam radiotherapy (EBRT) and brachytherapy (BT). Although the advances in treatment strategies, after primary treatment 5 to 60% of men experience biochemical recurrence (BCR).
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.
- Participants
-
About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
-
Sep 2026
An estimate. Start dates often move.
- Expected to finish
-
May 2030
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.
Who is studied
All enrolled patients will receive standard-of-care CyberKnife-based SBRT to the pelvic target. Androgen deprivation therapy (ADT), including its indication, timing, and duration, will be prescribed at the discretion of the treating radiation oncologist based on clinical judgment and individual patient characteristics.
- Ages
-
18 to 80 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 Hide 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: * Age \> 18 and \< 80 years * Histologically confirmed adenocarcinoma of the prostate initial diagnosis * History of a previous adjuvant/salvage RT following prostatectomy or curative RT * Diagnosis of local recurrence at the restaging imaging in hormone sensitive patients (maximum 1 prostate bed recurrence and 3 intraprostatic recurrences) * DICOM plan of the previous RT course * No evidence of greater than grade 2 according to Common Terminology Criteria for Adverse Events (CTCAE) genitourinary (GU) or gastrointestinal (GI) late adverse events from the previous RT course * Eastern Cooperative Oncology Group (ECOG) Performance Status \<2 * Good urinary flow (peak flow \>10 mL/s) or IPSS \< 15 * Written informed consent for treatment and research purpose Exclusion Criteria: * Evidence of distant metastasis at the restaging imaging * Patients with current concomitant anticoagulant therapy (antiplatelet therapy is allowed even if it will be temporary suspended before fiducials implant) * Platelets count \< 75'000/uL * Urethral stricture * Having received previous different salvage treatments for PCa local relapse * Development of BCR while on ADT * Concomitant inflammatory bowel disease or other serious systemic comorbidities * Presence of hip prosthesis * Impossibility of performing an MRI
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Prostate cancer are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- A sharper eye for cancer: new PET tracer targets hidden tumors
- Can a radioactive tracer help surgeons find hidden prostate cancer?
- Steam therapy vs. surgery: can a less invasive fix help men with blocked urine flow?
- Can smart fluid monitoring improve robotic prostatectomy outcomes?
- Smart blood pressure monitoring may shield kidneys during robotic surgery
- Can a wider biopsy needle sharpen prostate cancer diagnosis?