Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

Single Fraction stereotactische radiochirurgie vergeleken met gefractioneerde stereotactische radiochirurgie voor de behandeling van intacte gemetastaseerde hersenziekte, FRACTIONATE Trial

29 september 2026 bijgewerkt door: Mayo Clinic

Fase IIR-studie van stereotactische radiochirurgie met één fractie (SRS) vergeleken met gefractioneerde SRS (FSRS) voor intacte metastatische hersenziekte (FRACTIONATE)

This phase II trial compares the effect of single fraction stereotactic radiosurgery to fractionated stereotactic radiosurgery for the treatment of patients with cancer that has spread to the brain (metastatic brain disease). Stereotactic radiosurgery (SRS) is a form of radiation therapy that focuses high-power energy on a small area of the body. This trial is being done to determine if single (one) fraction stereotactic radiosurgery is better than fractionated stereotactic radiosurgery or vice versa in controlling tumor and side effects in patients with tumors that have spread to the brain.

Studie Overzicht

Toestand

Werving

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

PRIMARY OBJECTIVE:

I. To ascertain if the composite endpoint of cumulative treatment failure, defined by time to either local failure or symptomatic radiation brain necrosis of the largest brain metastasis (target lesion), is increased with fractionated stereotactic radiosurgery (FSRS) compared to single fraction stereotactic radiosurgery (SSRS).

SECONDARY OBJECTIVES:

I. To ascertain whether there is improved overall survival in patients who undergo FSRS compared to patients who receive SSRS.

II. To tabulate and descriptively compare the post-treatment adverse events associated with the interventions, including the potential impact of immunotherapy and targeted therapy.

III. To compare rates of radiation necrosis in patients who receive FSRS to patients who receive SSRS.

IV. To evaluate if there is any difference in central nervous system (CNS) failure patterns (e.g. local, distant brain failure) in patients who receive FSRS compared to patients who receive SSRS.

V. To ascertain whether FSRS prolongs time to neurologic death as compared to SRS.

VI. To determine whether there is improved patient reported outcomes (Functional Assessment of Cancer Therapy [FACT]-Brain Symptom Index [FBrSI]-24) including quality of life for patients who receive FSRS compared to patients who receive SSRS.

VII. To evaluate if there is any difference in CNS failure patterns (e.g. local, distant brain failure) and symptomatic radiation necrosis rates in patients who are treated with gamma knife compared to patients who are treated with a linear accelerator platform.

VIII. To determine whether differences in time to local failure, time to necrosis, or their composite endpoint cumulative treatment failure differs between treatment arms (or other patient or treatment factors) when analyzed on a "per lesion" basis rather than the per patient basis utilized for the primary endpoint.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM A: Patients undergo single fraction SRS. Patients also undergo magnetic resonance imaging (MRI) at screening and during follow up.

ARM B: Patients undergo fractionated SRS, for 3-5 treatments, given over no more than 8 days. Patients also undergo MRI at screening and during follow up.

After completion of study treatment, patients are followed up at 3 months, every 3 months for 2 years, and then every 6 months for 3 years.

Studietype

Ingrijpend

Inschrijving (Geschat)

90

Fase

  • Fase 2

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

  • Verenigde Staten
    • Arizona
      • Scottsdale, Arizona, Verenigde Staten, 85259
        • Werving
        • Mayo Clinic in Arizona
        • Contact:
        • Hoofdonderzoeker:
          • Sujay A. Vora, MD
    • Florida
      • Jacksonville, Florida, Verenigde Staten, 32224
        • Werving
        • Mayo Clinic in Florida
        • Contact:
        • Hoofdonderzoeker:
          • Jennifer L. Peterson, MD
    • Minnesota
      • Albert Lea, Minnesota, Verenigde Staten, 56007
        • Nog niet aan het werven
        • Mayo Clinic Health System in Albert Lea
        • Contact:
        • Hoofdonderzoeker:
          • John Yeakel, MD
        • Contact:
      • Mankato, Minnesota, Verenigde Staten, 56001
        • Werving
        • Mayo Clinic Health Systems-Mankato
        • Contact:
        • Contact:
        • Hoofdonderzoeker:
          • Jason T. Hayes, MD
      • Rochester, Minnesota, Verenigde Staten, 55905
        • Werving
        • Mayo Clinic in Rochester
        • Hoofdonderzoeker:
          • Paul D. Brown, M.D.
        • Contact:
    • Wisconsin
      • Eau Claire, Wisconsin, Verenigde Staten, 54701
        • Werving
        • Mayo Clinic Health System-Eau Claire Clinic
        • Contact:
        • Hoofdonderzoeker:
          • Now Bahar Alam, MD
        • Contact:
      • La Crosse, Wisconsin, Verenigde Staten, 54601
        • Werving
        • Mayo Clinic Health System-Franciscan Healthcare
        • Contact:
        • Hoofdonderzoeker:
          • Abigail L. Stockham, MD
        • Contact:

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Age >= 18 years old

  • Presence of presumed brain metastases from an extra-cerebral tumor site (e.g. lung, breast, prostate, etc.)

    • Note: Dural based metastases (e.g. commonly seen in breast cancer) are eligible

  • Size of brain metastases

    • At least one intact metastasis (not previously treated with radiosurgery) must measure >= 2.0 cm and =< 4.0 cm in maximal extent on the contrasted pre-treatment magnetic resonance imaging (MRI) brain scan obtained =< 28 days prior to registration
    • If the largest lesion measures >= 2.0 to =< 4.0 cm in maximal extent the patient will be randomized

  • Able to undergo contrast enhanced MRI brain

  • Negative urine or serum pregnancy test completed =< 7 days prior to registration, for women of childbearing potential only

  • Patient is willing and able to provide written informed consent or have a legally Authorized Representative (LAR) who is responsible for the care and well-being of the potential study participant provide consent.

  • Karnofsky performance status (KPS) >= 50

  • Eastern Cooperative Oncology Group (ECOG) performance score of (PS) >= 2

  • Past radiosurgery or resection is allowed as long as no definitive evidence of progression in these locations

    • Note: Repeat radiosurgery to the same location/lesion is not allowed on this protocol

Exclusion Criteria:

  • Any patient who has received previous whole brain radiation

  • Any brain metastasis that is located in the brainstem measuring >= 2.0 cm in maximal extent

  • Any patient with definitive evidence of leptomeningeal metastasis (LMD)

    • NOTE: For the purposes of exclusion, LMD is a clinical diagnosis, defined as positive cerebrospinal fluid (CSF) cytology and/or unequivocal radiologic or clinical evidence of leptomeningeal involvement. Patients with leptomeningeal symptoms in the setting of leptomeningeal enhancement by imaging (MRI) would be considered to have LMD even in the absence of positive CSF cytology, unless a parenchymal lesion can adequately explain the neurologic symptoms and/or signs. In contrast, an asymptomatic or minimally symptomatic patient with mild or nonspecific leptomeningeal enhancement (MRI) would not be considered to have LMD. In that patient, CSF sampling is not required to formally exclude LMD, but can be performed at the investigator's discretion based on level of clinical suspicion

  • Any patient with an intact brain metastasis measuring > 4.0 cm

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Ander: Arm A (single fraction SRS)

Patients undergo single fraction SRS. Patients also undergo MRI at screening and during follow up.
Procedure: Magnetic Resonance Imaging

Undergo MRI

Andere namen:
  • MRI
  • Magnetische resonantie
  • Magnetic Resonance Imaging-scan
  • DHR
  • MR-beeldvorming
  • MRI scan
  • NMR-beeldvorming
  • NMRI
  • Medische beeldvorming
  • Magnetische resonantie / Nucleaire magnetische resonantie
  • nucleaire magnetische resonantie beeldvorming
  • Magnetische resonantiebeeldvorming (MRI)
  • sMRI
  • Magnetische resonantiebeeldvorming (procedure)
  • MRI's
  • Structurele MRI
Ander: Questionnaire Administration

Ancillary studies

Straling: Stereotactic Radiosurgery

Undergo single fraction SRS

Andere namen:
  • Stereotactische externe bundelbestraling
  • stereotactische uitwendige bestralingstherapie
  • Stereotactische radiotherapie
  • stereotactische radiotherapie
  • stereotactische radiochirurgie
  • SRS
Straling: Stereotactic Radiosurgery

Undergo fractionated SRS

Andere namen:
  • Stereotactische externe bundelbestraling
  • stereotactische uitwendige bestralingstherapie
  • Stereotactische radiotherapie
  • stereotactische radiotherapie
  • stereotactische radiochirurgie
  • SRS
Ander: Arm B (fractionated SRS)

Patients undergo fractionated SRS, for 3-5 treatments, given over no more than 8 days.. Patients also undergo MRI at screening and during follow up.
Procedure: Magnetic Resonance Imaging

Undergo MRI

Andere namen:
  • MRI
  • Magnetische resonantie
  • Magnetic Resonance Imaging-scan
  • DHR
  • MR-beeldvorming
  • MRI scan
  • NMR-beeldvorming
  • NMRI
  • Medische beeldvorming
  • Magnetische resonantie / Nucleaire magnetische resonantie
  • nucleaire magnetische resonantie beeldvorming
  • Magnetische resonantiebeeldvorming (MRI)
  • sMRI
  • Magnetische resonantiebeeldvorming (procedure)
  • MRI's
  • Structurele MRI
Ander: Questionnaire Administration

Ancillary studies

Straling: Stereotactic Radiosurgery

Undergo single fraction SRS

Andere namen:
  • Stereotactische externe bundelbestraling
  • stereotactische uitwendige bestralingstherapie
  • Stereotactische radiotherapie
  • stereotactische radiotherapie
  • stereotactische radiochirurgie
  • SRS
Straling: Stereotactic Radiosurgery

Undergo fractionated SRS

Andere namen:
  • Stereotactische externe bundelbestraling
  • stereotactische uitwendige bestralingstherapie
  • Stereotactische radiotherapie
  • stereotactische radiotherapie
  • stereotactische radiochirurgie
  • SRS

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Time to local failure or symptomatic radiation brain necrosis of large brain metastasis
Tijdsspanne: Up to 5 years

Will determine if the composite endpoint of time to local failure or symptomatic radiation brain necrosis of a large brain metastasis [cumulative treatment failure (CTF)] is increased with fractionated stereotactic radiosurgery (FSRS) compared to single fraction stereotactic radiosurgery (SSRS).
Up to 5 years

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Overall survival (OS)
Tijdsspanne: From study entry to death from any cause, assessed up to 5 years

OS will be estimated using the Kaplan-Meier method, where the log-rank test will be used to compare the 2 treatment arms. Medians and 95% confidence intervals will be reported.
From study entry to death from any cause, assessed up to 5 years
Incidence of adverse events
Tijdsspanne: Up to 2 years post radiation therapy

The maximum grade for each type of adverse event will be summarized using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The frequency and percentage of grade 3+ adverse events will be compared between the 2 treatment arms. Comparisons between arms will be made by using either the Chi-square or Fisher's Exact test.
Up to 2 years post radiation therapy
Rates of radiation necrosis
Tijdsspanne: Up to 5 years

Will compare rates of radiation necrosis in patients who receive FSRS to patients who receive SSRS. Comparisons between arms will be made by using either the Chi-square or Fisher's Exact test.
Up to 5 years
Central nervous system (CNS) failure patterns (Fractionation)
Tijdsspanne: Up to 5 years

Will evaluate if there is any difference in CNS failure patterns (e.g. local, distant brain failure) in patients who receive FSRS compared to patients who receive SSRS. Comparisons between arms will be made by using either the Chi-square or Fisher's Exact test.
Up to 5 years
Time to neurologic death
Tijdsspanne: Up to 5 years

Will ascertain whether FSRS prolongs time to neurologic death as compared to SSRS. This will be estimated using the Kaplan-Meier method, where the log-rank test will be used to compare the 2 treatment arms. Medians and 95% confidence intervals will be reported.
Up to 5 years
Quality of life (QOL)
Tijdsspanne: Up to 5 years

Will determine whether there are improved patient reported outcomes (Functional Assessment of Cancer Therapy [FACT]-Brain Symptom Index [FBrSI]-24) including quality of life for patients who receive FSRS compared to patients who receive SSRS. Changes over time in QOL from baseline will be compared between arms using the 2-sample t-test (or Wilcoxon Rank-Sum test for non-normal data). Box-plots will be used to show differences between arms graphically.
Up to 5 years
CNS failure patterns (Gamma Knife)
Tijdsspanne: Up to 5 years

Will evaluate if there is any difference in CNS failure patterns (e.g. local, distant brain failure) and symptomatic radiation necrosis rates in patients who are treated with Gamma Knife compared to patients who are treated with a linear accelerator platform. Comparisons between arms will be made by using either the Chi-square or Fisher's Exact test.
Up to 5 years
Per lesion analysis between treatment arms: time to local failure
Tijdsspanne: Up to 5 years

Will determine whether differences in time to local failure differs between treatment arms (or other patient or treatment factors) when analyzed on a "per lesion" basis rather than the per patient basis utilized for the primary endpoint. Time-to-event models (Cox and Kaplan- Meier) with sandwich estimators for covariance will be utilized to in treatment comparisons, with model comparisons completed through log-likelihood and Akaike Information Criterion.
Up to 5 years
Per lesion analysis between treatment arms: time to necrosis
Tijdsspanne: Up to 5 years

Will determine whether differences in time to necrosis differs between treatment arms (or other patient or treatment factors) when analyzed on a "per lesion" basis rather than the per patient basis utilized for the primary endpoint. Time-to-event models (Cox and Kaplan- Meier) with sandwich estimators for covariance will be utilized to in treatment comparisons, with model comparisons completed through log-likelihood and Akaike Information Criterion.
Up to 5 years
Per lesion analysis between treatment arms: endpoint CTF
Tijdsspanne: Up to 5 years

Will determine whether differences in the composite endpoint CTF differs between treatment arms (or other patient or treatment factors) when analyzed on a "per lesion" basis rather than the per patient basis utilized for the primary endpoint. Time-to-event models (Cox and Kaplan- Meier) with sandwich estimators for covariance will be utilized to in treatment comparisons, with model comparisons completed through log-likelihood and Akaike Information Criterion.
Up to 5 years

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Mayo Clinic

Onderzoekers

  • Hoofdonderzoeker: Paul D. Brown, MD, Mayo Clinic in Rochester

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Nuttige links

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

14 maart 2022

Primaire voltooiing (Geschat)

1 augustus 2027

Studie voltooiing (Geschat)

1 augustus 2027

Studieregistratiedata

Eerst ingediend

11 januari 2022

Eerst ingediend dat voldeed aan de QC-criteria

24 januari 2022

Eerst geplaatst (Werkelijk)

3 februari 2022

Updates van studierecords

Laatste update geplaatst (Werkelijk)

1 oktober 2026

Laatste update ingediend die voldeed aan QC-criteria

29 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • GMROR2163
  • NCI-2021-14230 (Register-ID: CTRP (Clinical Trial Reporting Program))
  • 21-003768 (Andere identificatie: Mayo Clinic Institutional Review Board)

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Abonneren