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Clinical Trials in Israel / NCT06027892
Recruiting Not applicable

Two-fraction Versus Five-fraction Stereotactic Radiotherapy for Localized Prostate Cancer

NCT06027892 · tracked via the Priya Life Science Israel tracker
Phase
Not applicable
Started
2022-12-29
Last updated
2024-11-15

Condition(s) studied

PROSTATE CANCER

Investigational drug(s) / intervention(s)

Two-fraction stereotactic radiotherapyFive-fraction stereotactic radiotherapy

Two-fraction stereotactic radiotherapy: Definitive prostate radiotherapy will be delivered to a dose biologically comparable to 40 Gy in 5 treatments, but in only 2 treatments

Five-fraction stereotactic radiotherapy: Definitive prostate radiotherapy will be delivered to a standard stereotactic dose of 40 Gy in 5 treatments

Study summary

The goal of this clinical trial is to compare two dose schedules of stereotactic radiation therapy in patients with localized prostate cancer. Historically, external beam radiation to treat localized prostate cancer was given in small treatments over a period of multiple weeks. Recent studies have shown that with newer technologies and better understanding of how prostate cancer responds to radiation, the same effective dose can be given in as few as 5 treatments. This study is comparing this newer standard course of 5 treatments with an even shorter course of just 2 treatments. The dose for the 2 treatments is based on a form of internal radiation called brachytherapy, but in this study, that dose will be given using external radiation, without the need for invasive procedures.

In order to make sure that the radiation therapy is given in a way that minimizes the risk of side effects to the surrounding organs, including the rectum and bladder, prior to radiation a hydrogel material will be inserted behind the prostate in order to distance the rectum further from the prostate gland, and small gold markers will be inserted into the prostate to decrease any possible movement during treatment.

The main questions are whether 2-treatment radiation is tolerated as well and is as effective at treating prostate cancer, compared to the standard 5-treatment course of radiation.

Eligibility

Sex
MALE
Min age
18 Years
Max age
—
Healthy volunteers
No
Inclusion: * Male patients ≥18 years * Diagnosis of low- or favorable intermediate-risk prostate adenocarcinoma * T1-T2c * Prostate specific antigen \< 20 * Gleason 6 or 7 (3+4) * Cannot had multiple intermediate-risk factors consistent with unfavorable intermediate risk disease * Prostate gland \< 60 cc (can include following cytoreductive androgen deprivation) * International Prostate Symptom Score \< 15 (unaided by a-adrenergic inhibitor or anticholinergic drugs) Exclusion: * Unfavorable intermediate-risk disease and above * Chronic inflammatory bowel condition (IBD, Crohn's disease, Sarcoidosis, Rheumatic disease) * Chronic immunosuppression * Contraindications to hydrogel spacer placement * Contraindications to a prostate MRI * Any prior prostate cancer treatment * Prior pelvic radiotherapy * Previous transurethral resection of the prostate (TURP) within 12 months * Hip prosthesis * Prior use of therapeutic androgen deprivation therapy

Primary outcome measure(s)

Trial sites (1)

FacilityCityRegionStatus
Davidoff Cancer Center, Rabin Medical Center Petah Tikva Israel Recruiting

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT06027892 on ClinicalTrials.gov ↗ ← All trials in Israel