NCT04384770

Brief Summary

This phase III trial studies compares CT-guided stereotactic body radiation therapy and MRI-guided stereotactic body radiation therapy (SBRT) in treating prostate cancer. Image-guided SBRT is a standard treatment for prostate cancer, which combines imaging of the cancer within the body with the delivery of therapeutic radiation doses produced on a linear accelerator machine. Imaging modalities for image-guided SBRT can be either computed tomography imaging (CT), magnetic resonance imaging (MRI), or a combination of the two. This research is being done to help determine whether there are benefits to MRI-guidance over CT-guidance in patients who are receiving the same radiation dose by SBRT to treat prostate cancer.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
179

participants targeted

Target at P50-P75 for all trials

Timeline
11mo left

Started May 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress87%
May 2020Apr 2027

First Submitted

Initial submission to the registry

May 8, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

May 12, 2020

Completed
Same day until next milestone

Study Start

First participant enrolled

May 12, 2020

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2026

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2027

Expected
Last Updated

December 22, 2025

Status Verified

December 1, 2025

Enrollment Period

5.9 years

First QC Date

May 8, 2020

Last Update Submit

December 15, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Incidence of acute grade >= 2 genitourinary (GU) physician-reported toxicity

    Will be assessed by the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 scale.

    90 days after stereotactic body radiation therapy (SBRT)

Secondary Outcomes (5)

  • Incidence of acute grade >= 2 gastrointestinal (GI) toxicity

    90 days after SBRT

  • Incidences of late grade >= 2 GU toxicity

    Up to 5 years

  • incidences of late grade >= 2 GI toxicity

    Up to 5 years

  • Patient-reported quality of life (QOL) outcomes

    Up 5 years

  • Biochemical recurrence-free survival (BCRFS)

    5 years

Study Arms (2)

Group I (CT-SBRT)

Patients undergo 5 fractions of CT-guided SBRT over 14 days in the absence of disease progression or unacceptable toxicity.

Radiation: CT-guided Stereotactic Body Radiation TherapyOther: Questionnaire Administration

Group II (MRI-SBRT)

Patients undergo 5 fractions of MRI-guided SBRT over 14 days in the absence of disease progression or unacceptable toxicity.

Radiation: MRI-guided Stereotactic Body Radiation TherapyOther: Questionnaire Administration

Interventions

Undergo CT-guided SBRT

Also known as: Computed Tomography-Guided Stereotactic Body Radiation Therapy, CT-guided SBRT
Group I (CT-SBRT)

Undergo MRI-guided SBRT

Also known as: Magnetic Resonance Imaging-guided Stereotactic Body Radiation Therapy, MR-guided SBRT, MRI-guided SBRT
Group II (MRI-SBRT)

Ancillary studies

Group I (CT-SBRT)Group II (MRI-SBRT)

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients receiving stereotactic body radiation therapy for the treatment of prostate cancer at the University of California, Los Angeles

You may qualify if:

  • Histologically confirmed, clinical localized adenocarcinoma of the prostate
  • No evidence of disease beyond the prostate and/or seminal vesicles (i.e., no suspicious pelvic lymph nodes or presence of metastatic disease outside the pelvis)
  • Staging workup as recommended by the National Comprehensive Cancer Network (NCCN) on the basis of risk grouping:
  • Low risk: No staging workup required
  • Favorable intermediate-risk: CT abdomen/pelvis if Memorial Sloan Kettering Cancer Center (MSKCC) nomogram predicts \>10% probability of lymph node involvement
  • Unfavorable intermediate-risk: technetium bone scan, CT abdomen/pelvis if MSKCC nomogram predicts \>10% probability of lymph node involvement
  • High-risk: technetium bone scan, CT abdomen/pelvis if MSKCC nomogram predicts \>10% probability of lymph node involvement
  • Advanced imaging studies (i.e. prostate-specific membrane antigen positron emission tomography \[PSMA PET\] and axumin scan) can supplant a bone scan if performed first
  • Ability to understand, and willingness to sign, the written informed consent

You may not qualify if:

  • Patients with neuroendocrine or small cell carcinoma of the prostate
  • Patients with any evidence of distant metastases. Note, evidence of lymphadenopathy below the level of the renal arteries can be deemed loco regional per the discretion of the investigator
  • Prior cryosurgery, high intensity focused ultrasound (HIFU) or brachytherapy of the prostate
  • Prior pelvic radiotherapy
  • History of Crohn's disease, ulcerative colitis, or ataxia telangiectasia
  • Contraindications to MRI, including:
  • Electronic devices such as pacemakers, defibrillators, deep brain stimulators, cochlear implants;
  • Metallic foreign body in the eye or aneurysm clips in the brain;
  • Severe claustrophobia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UCLA / Jonsson Comprehensive Cancer Center

Los Angeles, California, 90095, United States

Location

Related Publications (3)

  • Kishan AU, Lamb JM, Wilhalme H, Casado M, Chong N, Zello L, Juarez JE, Jiang T, Neilsen BK, Low DA, Yang Y, Neylon J, Basehart V, Martin Ma T, Valle LF, Cao M, Steinberg ML. Magnetic Resonance Imaging Versus Computed Tomography Guidance for Stereotactic Body Radiotherapy in Prostate Cancer: 2-year Outcomes from the MIRAGE Randomized Clinical Trial. Eur Urol. 2025 Jun;87(6):622-625. doi: 10.1016/j.eururo.2024.10.026. Epub 2024 Nov 13.

  • Kishan AU, Ma TM, Lamb JM, Casado M, Wilhalme H, Low DA, Sheng K, Sharma S, Nickols NG, Pham J, Yang Y, Gao Y, Neylon J, Basehart V, Cao M, Steinberg ML. Magnetic Resonance Imaging-Guided vs Computed Tomography-Guided Stereotactic Body Radiotherapy for Prostate Cancer: The MIRAGE Randomized Clinical Trial. JAMA Oncol. 2023 Mar 1;9(3):365-373. doi: 10.1001/jamaoncol.2022.6558.

  • Ma TM, Lamb JM, Casado M, Wang X, Basehart TV, Yang Y, Low D, Sheng K, Agazaryan N, Nickols NG, Cao M, Steinberg ML, Kishan AU. Magnetic resonance imaging-guided stereotactic body radiotherapy for prostate cancer (mirage): a phase iii randomized trial. BMC Cancer. 2021 May 11;21(1):538. doi: 10.1186/s12885-021-08281-x.

Study Officials

  • Amar Kishan

    UCLA / Jonsson Comprehensive Cancer Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 8, 2020

First Posted

May 12, 2020

Study Start

May 12, 2020

Primary Completion

April 1, 2026

Study Completion (Estimated)

April 1, 2027

Last Updated

December 22, 2025

Record last verified: 2025-12

Locations