Hypofractionated Stereotactic Radiosurgery for Intermediate-risk Meningioma

A Pilot Trial of Adjuvant Hypofractionated Stereotactic Radiosurgery for Intermediate-risk Meningioma (SRS-AIM)

Not applicable Interventional University of California, San Francisco · NCT06557512

This study is testing a new way of giving radiation therapy over five days to see if it helps people with certain types of brain tumors feel better and have a better quality of life after treatment.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment23 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of California, San Francisco Academic / other
Drugs / interventionsRadiation
Locations1 site (San Francisco, California)
Trial IDNCT06557512 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the safety and effectiveness of hypofractionated stereotactic radiosurgery in patients who have had surgical resection for grade II meningiomas or recurrent grade I meningiomas. The approach involves delivering higher doses of radiation over a shorter period, potentially killing more tumor cells while minimizing side effects. Participants will undergo treatment over five days, with follow-up assessments including MRI and CT scans to monitor outcomes. The study also aims to assess the financial impact and quality of life for participants post-treatment.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 with a histologic diagnosis of newly diagnosed grade II or recurrent grade I meningioma who have undergone gross-total surgical resection.

Not a fit: Patients with grade I meningiomas that have not recurred or those who have not undergone surgical resection may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a more effective and tolerable option for patients with intermediate-risk meningiomas.

How similar studies have performed: Other studies have shown promise with stereotactic radiosurgery approaches, but this specific hypofractionated method is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \>+ 18 years at time of study entry
* Ability to understand and the willingness to sign a written informed consent document.
* Histologic diagnosis of newly diagnosed World Health Organization (WHO) grade 2 or recurrent WHO grade 1 meningioma. With regard to recurrent WHO grade 1 meningioma, participants must present with radiographic evidence of recurrence, and have a histologic diagnosis of WHO grade 1 meningioma at the most recent resection.

  \* Note: For participants diagnosed outside of University of California San Francisco (UCSF), re-review of pathology at UCSF is strongly encouraged. Hematoxylin and eosin (H\&E) slides will be reviewed by UCSF pathologists.
* Participants must have undergone a gross-total surgical resection as deemed by their neurosurgeon (Simpson grade I-III resection), using all available information which can include post-operative MRI, of a meningioma within 180 days of enrollment.
* Participants must have a pre-operative MRI.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 (Karnofsky score of 70 or higher)
* Participants must have post-operative MRI indicating anatomy suitable for hypofractionated radiosurgery, as reviewed by the Radiation Oncology co-principal investigators (PIs).

Exclusion Criteria:

* Concurrent participation in another clinical study with an investigational product unless it is an observational (non-interventional) study or the follow-up period of an interventional study.
* Extensive multifocal (3 or more meningiomas) or metastatic disease.
* Participants with tumors within 2mm of the optic apparatus or brainstem will be excluded.
* Participants with another active primary malignancy or history of previous malignancy (except non-melanoma skin cancers, low and favourable-intermediate risk prostate cancers, and in situ cancers such as bladder, gastric, colon, cervical/dysplasia, or breast) are excluded unless a complete remission was achieved at least 2 years prior to study entry and no additional therapy is required or anticipated to be required during the study period.
* Female participants who are pregnant.
* Any underlying medical or psychiatric condition that, in the opinion of the investigator, would interfere with evaluation of study treatment or interpretation of participant safety or study results.
* Participants with uncontrolled seizures, defined as greater than 3 disabling seizures per day while on anti-epileptic drugs.
* Participants who have had previous intracranial radiotherapy overlapping with the area that would be targeted for stereotactic radiosurgery by this study.

Where this trial is running

San Francisco, California

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 MeningiomaMeningioma, MalignantRecurrent Meningioma
Last reviewed 2026-06-13 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.