RecruitingPhase 3NCT07481786

Bevacizumab Plus FSRT Versus Hippocampus-Avoidant WBRT in Lung Adenocarcinoma With Extensive Brain Metastases

Application of Bevacizumab Combined With Fractionated Stereotactic Radiotherapy (FSRT-Bev) Versus Hippocampus-Avoidant Whole-Brain Radiotherapy With Simultaneous Integrated Boost (HA-WBRT-SIB) in Patients With Extensive Brain Metastases From Lung Adenocarcinoma: A Phase III Randomized Controlled Trial Evaluating Intracranial Control Efficacy and Neurocognitive Function

Sponsor

Sun Yat-sen University

Enrollment

220 participants

Start Date

Mar 20, 2026

Study Type

INTERVENTIONAL

Conditions

Brain Metastases Lung Adenocarcinoma Whole-Brain Radiotherapy Bevacizumab Radiotherapy, Intensity-Modulated

Summary

This is a phase 3, randomized, controlled clinical trial comparing two brain-directed treatment strategies for adult patients with extensive brain metastases from lung adenocarcinoma. The trial compares fractionated stereotactic radiotherapy combined with bevacizumab (FSRT-Bev) versus hippocampus-avoidant whole-brain radiotherapy with simultaneous integrated boost (HA-WBRT-SIB). The main objectives are to evaluate intracranial tumor control and preservation of neurocognitive function . Patients will be randomly assigned in a 1:1 ratio to receive either FSRT plus bevacizumab or HA-WBRT-SIB. In the experimental group, FSRT is delivered to visible brain tumors over 5 daily treatments (total 30 Gy, 6 Gy per fraction). Bevacizumab is given intravenously every 3 weeks for 4 cycles. In the control group, patients receive hippocampus-avoidant whole-brain radiation (25 Gy) with a simultaneous dose boost to metastatic lesions (40 Gy total) over 10 daily treatments.

Eligibility

Min Age: 18 Years

Plain Language Summary

Simplified for easier understanding

This clinical trial is studying a drug called Bevacizumab, FSRT, and others for people with bevacizumab, brain metastases, and other related conditions. The study is currently recruiting participants at 3 locations.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

RADIATIONFSRT

The FSRT-bevacizumab group receives FSRT plus bevacizumab. FSRT targets visible intracranial lesions, with a total dose of 30 Gy administered once daily for 5 fractions (6 Gy per fraction).

RADIATIONHA-WBRT-SIB

The HA-WBRT-SIB group receives whole-brain radiotherapy with hippocampal avoidance and a simultaneous integrated boost (SIB) to visible intracranial lesions. A total dose of 25 Gy is delivered to the whole brain, while visible lesions are simultaneously boosted to 40 Gy. Treatment is administered once daily for a total of 10 fractions.

DRUGBevacizumab

Bevacizumab is initiated one week before the start of FSRT and administered every 3 weeks for a total of 4 cycles, via intravenous injection at a dose of 7.5 mg/kg.