Neurocognitive assessment in patients with brain oligometastases receiving targeted radiotherapy

Hypofractionated Stereotactic Radiotherapy for Treating Brain Oligometastases - A Prospective Longitudinal Neurocognitive Study

Observational Chang Gung Memorial Hospital · NCT04805255

This study is testing if a new type of targeted radiation therapy can help people with brain oligometastases keep their thinking skills better than the usual whole-brain radiation.

Quick facts

Study typeObservational
Enrollment135 (estimated)
Ages18 Years to 84 Years
SexAll
SponsorChang Gung Memorial Hospital Academic / other
Drugs / interventionsradiation
Locations2 sites (Taoyuan and 1 other locations)
Trial IDNCT04805255 on ClinicalTrials.gov

What this trial studies

This observational study focuses on patients diagnosed with brain oligometastases who are receiving hypofractionated stereotactic radiotherapy (HF-SRT). The aim is to evaluate the neurocognitive functions of these patients, particularly in relation to the potential cognitive decline associated with conventional whole-brain radiation therapy. By utilizing HF-SRT, the study seeks to mitigate the adverse effects on cognitive health that can arise from traditional treatment methods. Participants will be monitored for their cognitive performance following treatment to assess the effectiveness of this approach.

Who should consider this trial

Good fit: Ideal candidates include adults with a confirmed non-hematopoietic malignancy and up to three brain metastases, each no larger than 4 cm.

Not a fit: Patients with hematological malignancies, certain types of brain tumors, or those with metastases near critical brain structures may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved cognitive outcomes for patients undergoing treatment for brain oligometastases.

How similar studies have performed: Previous studies have shown promising results with hypofractionated stereotactic radiotherapy in similar patient populations, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with pathologically-confirmed non-hematopoietic malignancy who are referred for postoperative adjuvant or therapeutic hypofractionated stereotactic radiotherapy (HF-SRT).
* A Fair/good performance status no worse than Eastern Cooperative Group (ECOG) of 2 or an acceptable performance status of Karnofsky Score (KPS) at least 70.
* The number and extent of brain metastatic lesions should be no more than three metastatic foci with a greatest diameter no more than 4 cm shown on pre-radiotherapy MRI; namely, that is the clinical setting of oligometastatic brain disease or brain oligometastases.

Exclusion Criteria:

* Patients with their primary cancer arising from hematological malignancies (i.e., malignant lymphomas, leukemia), germ cell tumors, or malignant meningiomas
* Patients with MRI-identified metastasis within 5 mm peri-hippocampally
* Patients with metastasis involving the brain stem
* Clinical suspicion of leptomeningeal spreading
* History of prior radiotherapy including stereotactic radiosurgery delivered to brain/head region for any reasons

Where this trial is running

Taoyuan and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Brain Metastases, AdultBrain OligometastasesStereotactic RadiotherapyHypofractionationHypofractionated Stereotactic RadiotherapyNeurocognitive FunctionsTime to ProgressionTime to CNS Progression
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.