CyberKnife treatment for localized prostate cancer

CyberKnife Ultra-hypofractionated SBRT for Localized PROStatE cancEr With Dose-escalation to the Dominant Intraprostatic Lesion: is the Juice Worth the Squeeze? The PRO-SPEED Trial

Not applicable Interventional European Institute of Oncology · NCT06331013

This study is testing if a special type of radiation treatment called CyberKnife can effectively target localized prostate cancer in men who are at intermediate to high risk.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 80 Years
SexMale
SponsorEuropean Institute of Oncology Academic / other
Drugs / interventionsRadiation
Locations1 site (Milan)
Trial IDNCT06331013 on ClinicalTrials.gov

What this trial studies

This prospective observational study aims to evaluate the effectiveness of ultra-hypofractionated CyberKnife Stereotactic Body Radiation Therapy (SBRT) on the whole prostate gland, along with a simultaneous integrated boost to dominant intraprostatic lesions in patients with intermediate to high-risk prostate cancer. The study will enroll 60 patients over two years, involving initial screenings, imaging, and the insertion of gold fiducials for precise targeting. Treatment will consist of delivering a total of 36.25 Gy in five alternate days, with assessments of quality of life and acute toxicity at the end of the treatment.

Who should consider this trial

Good fit: Ideal candidates include men aged 18 to 80 with histologically confirmed adenocarcinoma of the prostate and specific risk categories as defined by the NCCN.

Not a fit: Patients with certain comorbidities, previous pelvic radiation, or those with urethral stricture may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a more effective and less invasive option for patients with localized prostate cancer.

How similar studies have performed: Other studies have shown promise with similar approaches, but this specific methodology may be novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \> 18 and \< 80 years
* Histologically confirmed adenocarcinoma of the prostate
* Low, Intermediate and high-risk category according to NCCN version 02.2021
* Clinically node negative and no distant metastasis
* Eastern Cooperative Oncology Group (ECOG) Performance Status \<2
* Good urinary flow (peak flow \>10 mL/s) or IPSS \< 15
* Prostate volume \< 100 cc
* Available mpMRI of the prostate
* Less than 3 DILs at mpMRI (if \>2 DILs, only DILs with higher Prostate Imaging - Reporting and Data System (PIRADS) will be included and only PI-RADS \>2)
* Written informed consent for treatment and research purpose

Exclusion Criteria:

* platelets count \< 75000
* urethral stricture
* Previous pelvic RT
* Concomitant inflammatory bowel disease or other serious systemic comorbidities
* Previous prostatectomy
* Presence of hip prosthesis

Where this trial is running

Milan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Prostate Cancer
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.