Comparing Single vs Multiple Dose Radiation for Cancer Patients With Brain Metastasis and Receiving Immunotherapy (HYPOGRYPHE)
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ClinicalTrials.gov Identifier: NCT05703269 |
Recruitment Status :
Not yet recruiting
First Posted : January 30, 2023
Last Update Posted : May 26, 2023
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Condition or disease | Intervention/treatment | Phase |
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NSCLC Renal Cell Carcinoma Breast Carcinoma Melanoma Brain Metastases, Adult Non-small Cell Lung Cancer | Radiation: single fraction stereotactic radiosurgery (SSRS) Radiation: fractionated stereotactic radiosurgery (FSRS) | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 244 participants |
Allocation: | Randomized |
Intervention Model: | Sequential Assignment |
Intervention Model Description: | Participants will be randomized 1:1 to either SSRS or FSRS, using minimization randomization strategy considering 4 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), and predominant tumor type (Melanoma vs. all others). All baseline patient-reported outcomes and neurocognitive assessments will be collected prior to randomization to minimize bias. |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Hypofractionated Radiotherapy vs Single Fraction Radiosurgery for Brain Metastasis Patients on Immunotherapy (HYPOGRYPHE) |
Estimated Study Start Date : | June 15, 2023 |
Estimated Primary Completion Date : | March 1, 2028 |
Estimated Study Completion Date : | March 1, 2028 |

Arm | Intervention/treatment |
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Active Comparator: SSRS = single fraction stereotactic radiosurgery
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.
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Radiation: single fraction stereotactic radiosurgery (SSRS)
SSRS is an advanced radiation technique that delivers high dose precision radiation in a single dose to discrete intracranial lesions. |
Experimental: FSRS = fractionated stereotactic radiosurgery
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.
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Radiation: fractionated stereotactic radiosurgery (FSRS)
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. |
- Occurrence of a Grade 2 or higher Adverse Radiation Effect (ARE) [ Time Frame: 9 months ]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.
- Compare time to composite end point [ Time Frame: 9 months ]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.
- Compare time to local failure between SSRS and FSRS groups [ Time Frame: 9 months ]To compare time to local failure between SSRS and FSRS groups.
- Compare time to neurologic death between groups [ Time Frame: 9 months ]To compare time to neurologic death between groups.
- Compare patient-reported brain tumor specific symptom burden [ Time Frame: 9 months ]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.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
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At least one intact brain metastasis or resection cavity ≥ 2 cm in diameter or ≥ 4 cc volume with no prior history of radiation therapy for brain metastasis.
- Both patients at initial diagnosis of brain metastases and patients known brain metastasis treated with systemic therapy alone are eligible
- Lesion volume will be approximated by measuring the lesion's three perpendicular diameters on contrast-enhanced, T1-weighted MRI and the product of those diameters will be divided by 2 to estimate the lesion volume (e.g., xyz/2). Alternatively, direct volumetric measurements via slice-by-slice contouring on a treatment planning software package can be used to calculate the total tumor volume.
- Any extent of non-CNS disease is allowed. There is no requirement for non-CNS disease to be controlled prior to study entry.
- Age ≥ 18 years at the time of enrollment.
- Total brain metastases (including resection cavities) ≤ 15 on diagnostic MRI; all lesions must be amenable to SSRS and FSRS as determined by the treating radiation oncologist. Treatment must take place at a facility credentialed by the Imaging and Radiation Oncology Core (IROC) for SRS and that offers both SSRS and FSRS as treatment options.
- Total gross tumor volume must be ≤ 30 cc. Lesion volume will be approximated by measuring each lesion's three perpendicular diameters on contrast-enhanced T1 MRI and the product of those diameters will be divided by 2 (V = xyz/2). Direct volumetric measurements by contouring all lesions on all visible slices on treatment planning software is also acceptable. If there is a cavity, only gross residual disease within or adjacent to the cavity is counted toward the 30 cc total volume.
- Ability to tolerate MRI brain with gadolinium-based contrast.
- Pathologically confirmed melanoma, renal cell carcinoma, non-small cell lung cancer, or breast cancer.
- Has received, is currently receiving, or is planned to receive immune checkpoint inhibitor therapy (defined as agent targeted to PD-1/PD-L1 axis) within 30 days of SSRS/FSRS. Dual ICI therapy with PD-1/PD-L1 and CTLA-4 targeted agents are allowed, but patients treated with a single agent CTLA-4 targeted agent only are ineligible.
- Karnofsky Performance Status (KPS) ≥ 70. Refer to Appendix A.
- Negative serum or urine pregnancy test within 14 days of randomization for women of child-bearing potential.
- Ability to understand and the willingness to sign written informed consent.
- Patients must be able to provide informed consent.
Exclusion Criteria:
- Prior fractionated, whole, or partial brain radiation therapy.
- Prior courses of radiation therapy for brain metastases. Prior courses of SRS for benign tumors such as meningiomas, pituitary adenomas, schwannomas may be acceptable if the treatment is > 2cm away from the site of a metastatic lesion that would be treated on this study. The study PI or a designated co-PI must review this type of case to confirm eligibility prior to enrollment.
- Leptomeningeal carcinomatosis established by lumbar puncture cytology, or MRI imaging. In the absence of a clinical indication, a lumbar puncture is not required to confirm eligibility.
- A brain metastasis that is 5 mm or less from the optic chiasm or optic nerves
- Inability to tolerate brain MRI or receive gadolinium-based contrast
- Planned or prior therapy with bevacizumab within 30 days as part of a systemic therapy regimen at study enrollment.
- Serious intercurrent illness or medical condition judged by the local investigator to compromise the patient's safety, preclude safe administration of the planned protocol treatment, or would not permit the patient to be managed according to the protocol guidelines.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05703269
Contact: Karen Craver, MT, MHA | 336-716-0891 | NCORP@wakehealth.edu |
Principal Investigator: | Christina K Cramer, MD | Wake Forest University Health Sciences |
Responsible Party: | Wake Forest University Health Sciences |
ClinicalTrials.gov Identifier: | NCT05703269 |
Other Study ID Numbers: |
IRB00092505 5UG1CA189824-08 ( U.S. NIH Grant/Contract ) NCI-2022-10836 ( Registry Identifier: Registry ID: NCI CTRP ) WF-2201 ( Other Identifier: Wake Forest NCORP Research Base ) |
First Posted: | January 30, 2023 Key Record Dates |
Last Update Posted: | May 26, 2023 |
Last Verified: | May 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | 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. |
Time Frame: | 6 months after publication for a 2 year duration |
Access Criteria: | upon request to NCORP@wakehealth.edu |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Gamma Knife Linear Accelerator Immune Checkpoint Inhibitor (ICI) therapy |
Stereotactic Radiosurgery (SRS) Fractionated Stereotactic Radiosurgery (FSRS) Stereotactic Radiosurgery (SSRS) |
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