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RECRUITING
NCT07223307
PHASE2

REGULUS: MRI-guided Adaptive SABR for Liver Cancers

Sponsor: Stanford University

View on ClinicalTrials.gov

Summary

Single arm unblinded study of simulation-free MRI-guided SABR with adaptive replanning in one session for treatment of patients with liver cancers

Official title: Phase II Trial of REal Time MRI GUided Adaptive Stereotactic Ablative Radiotherapy for Liver Cancers Using a Single Session, Simulation Free Workflow

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

62

Start Date

2026-01-23

Completion Date

2030-01

Last Updated

2026-02-09

Healthy Volunteers

No

Interventions

RADIATION

MRI-guided adaptive stereotactic ablative body radiotherapy (SABR)

A single fraction of MRI-guided adaptive stereotactic ablative body radiotherapy (SABR) will be delivered using the MRIdian system. Treatment includes adaptive planning based on daily MRI imaging to update tumor and organ-at-risk contours and optimize the radiation dose. On the day of treatment, Eovist contrast is administered 20 minutes before therapy to enhance tumor visualization. Patients perform an inspiratory breath hold during radiation delivery to minimize motion. The total dose is 30-40 Gy delivered in one fraction using external beam techniques.

Locations (1)

Stanford University

Palo Alto, California, United States