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SSRS is an advanced radiation technique that delivers high dose precision radiation in a single dose to discrete intracranial lesions. SSRS has recently become a standard-of-care treatment for patients with 1-4 brain metastases and is also commonly used for patients with up to 15 metastases, due to improved neurocognitive outcomes compared to whole brain radiotherapy.

FSRS is an advanced radiation technique that uses a lower dose precision radiation delivered over 3 to 5 treatments given daily or every other day to intracranial lesions.

SSRS is an advanced radiation technique that delivers high dose precision radiation in a single dose to discrete intracranial lesions.

single fraction stereotactic radiosurgery (SSRS)

fractionated stereotactic radiosurgery (FSRS)

Karen Craver, MT, MHA

Bryan A Faller

Bryan Faller

Samir Narayan

Jay Carlson

Jay W Carlson

Joana S Emmolo

Heyoung L McBride

Justin Tang

Christina K Cramer

Jeremy M Kilburn

Timothy J Harris

Andrew J Huang

Andrew Huang

Christina K Cramer, MD

This study is designed to see if we can lower the chance of side effects from radiation in patients with breast, kidney, small cell lung cancer, non-small cell lung cancer or melanoma that has spread to the brain and who are also being treated with immunotherapy, specifically immune checkpoint inhibitor (ICI) therapy. This study will compare the usual care treatment of single fraction stereotactic radiosurgery (SSRS) given on one day versus fractionated stereotactic radiosurgery (FSRS), which is a lower dose of radiation given over a few days to determine if FSRS is better or worse at reducing side effects than usual care treatment.

This study is an open-label, randomized, Phase III trial designed to ascertain whether fractionated stereotactic radiosurgery (FSRS) results in lower incidence of Grade 2 or higher adverse radiation effect (ARE) by 9 months compared to single fraction stereotactic radiosurgery (SSRS) in patients with large brain metastases who have received or will receive immune checkpoint inhibitor (ICI) targeted to the PD-1/PD-L1 axis within 30 days of stereotactic radiosurgery (SRS). Participants will be randomized 1:1 to either SSRS or FSRS, using a minimization randomization strategy considering 5 prognostic factors of interest: radiosurgery platform (gamma knife vs. LINAC), timing of immunotherapy relative to radiation (ICI within 30 days prior to Day 1 of SRS or not), surgical status (any resection cavity vs intact metastases only), predominant tumor type (Melanoma vs. all others), and prior courses of SRS for brain metastases (yes vs. no).

Participants will be randomized 1:1 to either SSRS or FSRS, using minimization randomization strategy considering 5 prognostic factors of interest: radiosurgery platform (GK vs. LINAC), timing of immunotherapy relative to radiation (ICI within 30 days of Day 1 prior to SRS or not), surgical status (any resection cavity vs. intact metastases only), predominant tumor type (Melanoma vs. all others), and prior courses of SRS for brain metastases (yes vs. no). All baseline patient-reported outcomes and neurocognitive assessments will be collected prior to randomization to minimize bias.

Comparing Single vs Multiple Dose Radiation for Cancer Patients With Brain Metastasis and Receiving Immunotherapy

Hypofractionated Radiotherapy vs Single Fraction Radiosurgery for Brain Metastasis Patients on Immunotherapy (HYPOGRYPHE)

Wake Forest NCORP Research Base is committed to following the NIH Statement on Sharing Research Data (http://grants.nih.gov/grants/guide/ notice-files/NOT-OD-03-032.html). As of July 2018, the WF NCORP RB signed an agreement with NCI to contribute de-identified data and data dictionaries from clinical trials conducted through our RB to the NCI NCTN/NCORP data archive within 6 months of primary and non-primary publications of phase II/III and phase III trials to https://nctn-data-archive.nci.nih.gov/. This will become the primary means for sharing raw data, and we will adhere to the guidelines spelled out in the NCTN/NCORP Data Archive Usage Guide. De-identified data from studies not covered by the agreement (e.g., phase II and observational studies) will be made available upon request. All data files will be de-identified.

De-identification procedures will meet the HIPAA criteria as detailed in the Code of Federal Regulations, Part 45, Section 164.514.

To compare the proportion of participants experiencing Grade 2 or higher Adverse Radiation Effects (ARE) within 9 months following randomization to single fraction stereotactic radiosurgery (SSRS) vs fractionated stereotactic radiosurgery (FSRS) in patients with brain metastases ≥ 2 cm in diameter or ≥ 4cc in volume treated with concurrent immune checkpoint inhibitor (ICI) therapy.

To compare the time to the composite endpoint of either local failure of a metastasis treated with SRS (as defined in Section 8.2) or first Grade 2 or higher ARE between SSRS and FSRS groups.

To compare time to local failure between SSRS and FSRS groups.

To compare time to neurologic death between groups.

To compare patient-reported brain tumor specific symptom burden using the MD Anderson Symptom Inventory-Brain Tumor (MDASI-BT) between SRSS or FSRS groups at 9 months.

National Cancer Institute (NCI)

Wake Forest University Health Sciences

Spots Global Cancer Trial Database for single fraction stereotactic radiosurgery (ssrs)