Status:

RECRUITING

Computed Tomography-Guided Stereotactic Body Radiation Therapy With Intrafraction Motion Monitoring for the Treatment of Localized Prostate Cancer, ILLUSION Trial

Lead Sponsor:

Jonsson Comprehensive Cancer Center

Collaborating Sponsors:

Varian Medical Systems

Conditions:

Localized Prostate Adenocarcinoma

Stage I Prostate Cancer AJCC v8

Eligibility:

MALE

18+ years

Phase:

NA

Brief Summary

This clinical trial studies the side effects of computed tomography (CT)-guided stereotactic body radiation therapy (SBRT) with intrafraction motion monitoring and to see how well it works in treating...

Detailed Description

PRIMARY OBJECTIVE: I. To determine the acute physician-scored GU toxicity associated with CT-guided SBRT utilizing a 2mm prostate ± seminal vesicles planning target volume (PTV) margin for localized ...

Eligibility Criteria

Inclusion

  • Histologically confirmed, clinically localized adenocarcinoma of the prostate
  • No evidence of metastatic disease in lymph nodes above the bifurcation of the renal arteries, or in bones or visceral organs (nodal disease identified on a prostate-specific membrane antigen \[PSMA\] positron emission tomography \[PET\]/CT scan below the bifurcation of the renal arteries are amenable)
  • Staging workup as recommended by the National Comprehensive Cancer Network (NCCN) on the basis of risk grouping
  • Advanced imaging studies (i.e. PSMA PET/CT and fluciclovine PET/CT scan) can supplant a bone scan if performed first
  • Age ≥ 18
  • Written informed consent obtained from participant or participant's legal representative and ability for participant to comply with the requirements of the study

Exclusion

  • Patients with neuroendocrine or small cell carcinoma of the prostate
  • Patients with any evidence of distant metastases except that evidence of lymphadenopathy below the level of the renal arteries can be deemed locoregional per the discretion of the investigator
  • Prior whole gland cryosurgery, high-intensity focused ultrasound (HIFU) or brachytherapy of the prostate
  • Prior pelvic radiotherapy
  • History of Crohn's Disease, ulcerative colitis, or ataxia telangiectasia
  • Presence of a condition or abnormality that in the opinion of the investigator would compromise the safety of the participant or the quality of the data

Key Trial Info

Start Date :

June 27 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 1 2036

Estimated Enrollment :

80 Patients enrolled

Trial Details

Trial ID

NCT06995053

Start Date

June 27 2025

End Date

September 1 2036

Last Update

November 10 2025

Active Locations (1)

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Page 1 of 1 (1 locations)

1

UCLA / Jonsson Comprehensive Cancer Center

Los Angeles, California, United States, 90095