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Comparaison entre la radiochirurgie stéréotaxique à fraction unique et la radiochirurgie stéréotaxique fractionnée pour le traitement de la maladie cérébrale métastatique intacte, essai FRACTIONATE

29 septembre 2026 mis à jour par: Mayo Clinic

Essai de phase IIR de la radiochirurgie stéréotaxique à fraction unique (SRS) par rapport à la SRS fractionnée (FSRS) pour la maladie cérébrale métastatique intacte (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.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Description détaillée

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.

Type d'étude

Interventionnel

Inscription (Estimé)

90

Phase

  • Phase 2

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

  • États-Unis
    • Arizona
      • Scottsdale, Arizona, États-Unis, 85259
        • Recrutement
        • Mayo Clinic in Arizona
        • Contact:
        • Chercheur principal:
          • Sujay A. Vora, MD
    • Florida
      • Jacksonville, Florida, États-Unis, 32224
        • Recrutement
        • Mayo Clinic in Florida
        • Contact:
        • Chercheur principal:
          • Jennifer L. Peterson, MD
    • Minnesota
      • Albert Lea, Minnesota, États-Unis, 56007
        • Pas encore de recrutement
        • Mayo Clinic Health System in Albert Lea
        • Contact:
        • Chercheur principal:
          • John Yeakel, MD
        • Contact:
      • Mankato, Minnesota, États-Unis, 56001
        • Recrutement
        • Mayo Clinic Health Systems-Mankato
        • Contact:
        • Contact:
        • Chercheur principal:
          • Jason T. Hayes, MD
      • Rochester, Minnesota, États-Unis, 55905
        • Recrutement
        • Mayo Clinic in Rochester
        • Chercheur principal:
          • Paul D. Brown, M.D.
        • Contact:
    • Wisconsin
      • Eau Claire, Wisconsin, États-Unis, 54701
        • Recrutement
        • Mayo Clinic Health System-Eau Claire Clinic
        • Contact:
        • Chercheur principal:
          • Now Bahar Alam, MD
        • Contact:
      • La Crosse, Wisconsin, États-Unis, 54601
        • Recrutement
        • Mayo Clinic Health System-Franciscan Healthcare
        • Contact:
        • Chercheur principal:
          • Abigail L. Stockham, MD
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Autre: Arm A (single fraction SRS)

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

Undergo MRI

Autres noms:
  • IRM
  • Résonance magnétique
  • Balayage d'imagerie par résonance magnétique
  • M
  • Imagerie IRM
  • Imagerie RMN
  • NMRI
  • L'imagerie médicale
  • Résonance magnétique / Résonance magnétique nucléaire
  • imagerie par résonance magnétique nucléaire
  • Imagerie par résonance magnétique (IRM)
  • IRMs
  • Imagerie par résonance magnétique (procédure)
  • IRM structurelle
Autre: Questionnaire Administration

Ancillary studies

Radiation: Stereotactic Radiosurgery

Undergo single fraction SRS

Autres noms:
  • Irradiation par faisceau externe stéréotaxique
  • radiothérapie externe stéréotaxique
  • Radiothérapie stéréotaxique
  • radiothérapie stéréotaxique
  • radiochirurgie stéréotaxique
  • SRS
Radiation: Stereotactic Radiosurgery

Undergo fractionated SRS

Autres noms:
  • Irradiation par faisceau externe stéréotaxique
  • radiothérapie externe stéréotaxique
  • Radiothérapie stéréotaxique
  • radiothérapie stéréotaxique
  • radiochirurgie stéréotaxique
  • SRS
Autre: 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.
Procédure: Magnetic Resonance Imaging

Undergo MRI

Autres noms:
  • IRM
  • Résonance magnétique
  • Balayage d'imagerie par résonance magnétique
  • M
  • Imagerie IRM
  • Imagerie RMN
  • NMRI
  • L'imagerie médicale
  • Résonance magnétique / Résonance magnétique nucléaire
  • imagerie par résonance magnétique nucléaire
  • Imagerie par résonance magnétique (IRM)
  • IRMs
  • Imagerie par résonance magnétique (procédure)
  • IRM structurelle
Autre: Questionnaire Administration

Ancillary studies

Radiation: Stereotactic Radiosurgery

Undergo single fraction SRS

Autres noms:
  • Irradiation par faisceau externe stéréotaxique
  • radiothérapie externe stéréotaxique
  • Radiothérapie stéréotaxique
  • radiothérapie stéréotaxique
  • radiochirurgie stéréotaxique
  • SRS
Radiation: Stereotactic Radiosurgery

Undergo fractionated SRS

Autres noms:
  • Irradiation par faisceau externe stéréotaxique
  • radiothérapie externe stéréotaxique
  • Radiothérapie stéréotaxique
  • radiothérapie stéréotaxique
  • radiochirurgie stéréotaxique
  • SRS

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Time to local failure or symptomatic radiation brain necrosis of large brain metastasis
Délai: 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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Overall survival (OS)
Délai: 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
Délai: 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
Délai: 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)
Délai: 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
Délai: 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)
Délai: 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)
Délai: 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
Délai: 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
Délai: 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
Délai: 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

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Mayo Clinic

Les enquêteurs

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

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Liens utiles

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

14 mars 2022

Achèvement primaire (Estimé)

1 août 2027

Achèvement de l'étude (Estimé)

1 août 2027

Dates d'inscription aux études

Première soumission

11 janvier 2022

Première soumission répondant aux critères de contrôle qualité

24 janvier 2022

Première publication (Réel)

3 février 2022

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

1 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

29 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • GMROR2163
  • NCI-2021-14230 (Identificateur de registre: CTRP (Clinical Trial Reporting Program))
  • 21-003768 (Autre identifiant: Mayo Clinic Institutional Review Board)

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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