Denne siden ble automatisk oversatt og nøyaktigheten av oversettelsen er ikke garantert. Vennligst referer til engelsk versjon for en kildetekst.

Enkeltfraksjon stereootaktisk radiokirurgi sammenlignet med fraksjonert stereootaktisk radiokirurgi for behandling av intakt metastatisk hjernesykdom, FRAKSJONERT forsøk

29. september 2026 oppdatert av: Mayo Clinic

Fase IIR-utprøving av enkeltfraksjon stereootaktisk radiokirurgi (SRS) sammenlignet med fraksjonert SRS (FSRS) for intakt metastatisk hjernesykdom (FRAKSJONAT)

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.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

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

Intervensjonell

Registrering (Antatt)

90

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Forente stater
    • Arizona
      • Scottsdale, Arizona, Forente stater, 85259
        • Rekruttering
        • Mayo Clinic in Arizona
        • Ta kontakt med:
        • Hovedetterforsker:
          • Sujay A. Vora, MD
    • Florida
      • Jacksonville, Florida, Forente stater, 32224
        • Rekruttering
        • Mayo Clinic in Florida
        • Ta kontakt med:
        • Hovedetterforsker:
          • Jennifer L. Peterson, MD
    • Minnesota
      • Albert Lea, Minnesota, Forente stater, 56007
        • Har ikke rekruttert ennå
        • Mayo Clinic Health System in Albert Lea
        • Ta kontakt med:
        • Hovedetterforsker:
          • John Yeakel, MD
        • Ta kontakt med:
      • Mankato, Minnesota, Forente stater, 56001
        • Rekruttering
        • Mayo Clinic Health Systems-Mankato
        • Ta kontakt med:
        • Ta kontakt med:
        • Hovedetterforsker:
          • Jason T. Hayes, MD
      • Rochester, Minnesota, Forente stater, 55905
        • Rekruttering
        • Mayo Clinic in Rochester
        • Hovedetterforsker:
          • Paul D. Brown, M.D.
        • Ta kontakt med:
    • Wisconsin
      • Eau Claire, Wisconsin, Forente stater, 54701
        • Rekruttering
        • Mayo Clinic Health System-Eau Claire Clinic
        • Ta kontakt med:
        • Hovedetterforsker:
          • Now Bahar Alam, MD
        • Ta kontakt med:
      • La Crosse, Wisconsin, Forente stater, 54601
        • Rekruttering
        • Mayo Clinic Health System-Franciscan Healthcare
        • Ta kontakt med:
        • Hovedetterforsker:
          • Abigail L. Stockham, MD
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

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

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Annen: Arm A (single fraction SRS)

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

Undergo MRI

Andre navn:
  • MR
  • Magnetisk resonans
  • Magnetic Resonance Imaging Scan
  • MR Imaging
  • MR-skanning
  • NMR-avbildning
  • NMRI
  • Medisinsk bildebehandling
  • Magnetisk resonans / Kjernemagnetisk resonans
  • kjernemagnetisk resonansavbildning
  • Magnetisk resonanstomografi (MR)
  • sMRI
  • Magnetisk resonansavbildning (prosedyre)
  • MR-er
  • Strukturell MR
Annen: Questionnaire Administration

Ancillary studies

Stråling: Stereotactic Radiosurgery

Undergo single fraction SRS

Andre navn:
  • Stereotaktisk ekstern strålebestråling
  • stereotaktisk ekstern strålebehandling
  • Stereotaktisk strålebehandling
  • stereotaksisk strålebehandling
  • stereotaksisk radiokirurgi
  • SRS
Stråling: Stereotactic Radiosurgery

Undergo fractionated SRS

Andre navn:
  • Stereotaktisk ekstern strålebestråling
  • stereotaktisk ekstern strålebehandling
  • Stereotaktisk strålebehandling
  • stereotaksisk strålebehandling
  • stereotaksisk radiokirurgi
  • SRS
Annen: 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.
Fremgangsmåte: Magnetic Resonance Imaging

Undergo MRI

Andre navn:
  • MR
  • Magnetisk resonans
  • Magnetic Resonance Imaging Scan
  • MR Imaging
  • MR-skanning
  • NMR-avbildning
  • NMRI
  • Medisinsk bildebehandling
  • Magnetisk resonans / Kjernemagnetisk resonans
  • kjernemagnetisk resonansavbildning
  • Magnetisk resonanstomografi (MR)
  • sMRI
  • Magnetisk resonansavbildning (prosedyre)
  • MR-er
  • Strukturell MR
Annen: Questionnaire Administration

Ancillary studies

Stråling: Stereotactic Radiosurgery

Undergo single fraction SRS

Andre navn:
  • Stereotaktisk ekstern strålebestråling
  • stereotaktisk ekstern strålebehandling
  • Stereotaktisk strålebehandling
  • stereotaksisk strålebehandling
  • stereotaksisk radiokirurgi
  • SRS
Stråling: Stereotactic Radiosurgery

Undergo fractionated SRS

Andre navn:
  • Stereotaktisk ekstern strålebestråling
  • stereotaktisk ekstern strålebehandling
  • Stereotaktisk strålebehandling
  • stereotaksisk strålebehandling
  • stereotaksisk radiokirurgi
  • SRS

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Time to local failure or symptomatic radiation brain necrosis of large brain metastasis
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Overall survival (OS)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Mayo Clinic

Etterforskere

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

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Hjelpsomme linker

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

14. mars 2022

Primær fullføring (Antatt)

1. august 2027

Studiet fullført (Antatt)

1. august 2027

Datoer for studieregistrering

Først innsendt

11. januar 2022

Først innsendt som oppfylte QC-kriteriene

24. januar 2022

Først lagt ut (Faktiske)

3. februar 2022

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

1. oktober 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

29. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • GMROR2163
  • NCI-2021-14230 (Registeridentifikator: CTRP (Clinical Trial Reporting Program))
  • 21-003768 (Annen identifikator: Mayo Clinic Institutional Review Board)

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

Abonnere