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CyberKnife Ultra-hypofractionated SBRT 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

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06331013
Acronym
PRO-SPEED
Enrollment
60
Registered
2024-03-26
Start date
2023-02-20
Completion date
2029-12-31
Last updated
2025-08-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Brief summary

This is a prospective observational study. The study will proceed with the enrollment of 60 patients in 2 years. he aim of the present study is to evaluate effectiveness of ultra-hypofractionated (UH) CyberKnife Stereotactic Body Radiation Therapy treatment on the whole prostate gland plus Simultaneous integrated boost (SIB) to the dominant intraprostatic lesions (DIL(s) in intermediate-unfavourable to high-risk Prostate Cancer (PCa) patients.

Detailed description

The patient to be enrolled in the prospective observational phase will be screened at first visit; prescription of Prostate Specific Antigen (PSA) and testosterone analysis, uroflowmetry and multiparametric Magnetic Resonance Imaging (mpMRI) are mandatory if not already done. Additional staging imaging (computed tomography (CT) and/or bone scan) will be required according to National Comprehensive Cancer Network (NCCN) category risk group. Subsequently, for the eligible patient, the enrollment phase involves eco-guided transrectal insertion of 3-4 gold fiducials in the prostate gland. CT with full bladder and empty rectum will be done after 7-10 days from fiducials insertion; CyberKnife-Stereotactic Body Radiation Therapy (SBRT) treatment will start after 5-7 days from the simulation CT. A total of 36.25 Gy to the prostate gland will be executed in 5 alternate days. For each treatment delivery, the patient is required to be prepared in roughly the same bladder and rectum filling condition of the simulation day. Finally, in the last treatment day QoL and both clinician- and patient-reported genitourinary (GU) and gastrointestinal (GI) acute toxicity assessment is required.

Interventions

RADIATIONCyberKnife ultra-hypofractionated SBRT

CyberKnife ultra-hypofractionated SBRT for localized Prostate cancer with dose-escalation to the dominant intraprostatic lesion

Sponsors

European Institute of Oncology
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 80 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with Acute GU and GI toxicities (RTOG)3 monthsEvaluation of acute genitourinary and gastrointestinal toxicity using Radiation Toxicity Grading (RTOG) distinguishing between lower toxicities (G1 and G2) and worse toxicities (G3 and G4)
Number of Participants with Late GU and GI toxicities (RTOG)24 monthsEvaluation of late genitourinary and gastrointestinal toxicity using Radiation Toxicity Grading (RTOG) distinguishing between lower toxicities (G1 and G2) and worse toxicities (G3 and G4)
Evaluation of patient-reported toxicity24 monthsEvaluation of patient-reported toxicity using International Prostatic Symptoms Score IPSS
Evaluation of patient-reported quality of life24 monthsEvaluation of patient-reported toxicity using International Index of Erectile Function Questionnaire

Countries

Italy

Contacts

Primary ContactBarbara Alicja Jereczek, MD
barbara.jereczek@ieo.it+39 0257489037

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026