이 페이지는 자동 번역되었으며 번역의 정확성을 보장하지 않습니다. 참조하십시오 영문판 원본 텍스트의 경우.

온전한 전이성 뇌 질환 치료를 위한 단일 분할 정위 방사선 수술과 분할 정위 방사선 수술 비교, FRACTIONATE 시험

2026년 9월 29일 업데이트: Mayo Clinic

온전한 전이성 뇌 질환(FRACTIONATE)에 대한 분할 SRS(FSRS)와 비교한 단일 분할 정위 방사선 수술(SRS)의 1상 IIR 시험

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.

연구 개요

상세 설명

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.

연구 유형

중재적

등록 (추정된)

90

단계

  • 2 단계

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 연락처

연구 장소

    • Arizona
      • Scottsdale, Arizona, 미국, 85259
        • 모병
        • Mayo Clinic in Arizona
        • 연락하다:
        • 수석 연구원:
          • Sujay A. Vora, MD
    • Florida
      • Jacksonville, Florida, 미국, 32224
        • 모병
        • Mayo Clinic in Florida
        • 연락하다:
        • 수석 연구원:
          • Jennifer L. Peterson, MD
    • Minnesota
      • Albert Lea, Minnesota, 미국, 56007
        • 아직 모집하지 않음
        • Mayo Clinic Health System in Albert Lea
        • 연락하다:
        • 수석 연구원:
          • John Yeakel, MD
        • 연락하다:
      • Mankato, Minnesota, 미국, 56001
        • 모병
        • Mayo Clinic Health Systems-Mankato
        • 연락하다:
        • 연락하다:
        • 수석 연구원:
          • Jason T. Hayes, MD
      • Rochester, Minnesota, 미국, 55905
        • 모병
        • Mayo Clinic in Rochester
        • 수석 연구원:
          • Paul D. Brown, M.D.
        • 연락하다:
    • Wisconsin
      • Eau Claire, Wisconsin, 미국, 54701
        • 모병
        • Mayo Clinic Health System-Eau Claire Clinic
        • 연락하다:
        • 수석 연구원:
          • Now Bahar Alam, MD
        • 연락하다:
      • La Crosse, Wisconsin, 미국, 54601
        • 모병
        • Mayo Clinic Health System-Franciscan Healthcare
        • 연락하다:
        • 수석 연구원:
          • Abigail L. Stockham, MD
        • 연락하다:

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 이상 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

모두

설명

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

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
다른: Arm A (single fraction SRS)

Patients undergo single fraction SRS. Patients also undergo MRI at screening and during follow up.

Undergo MRI

다른 이름들:
  • MRI
  • 자기 공명
  • 자기공명영상 스캔
  • 씨
  • MR 이미징
  • MRI 검사
  • NMR 이미징
  • NMRI
  • 의료 영상
  • 자기공명 / 핵자기공명
  • 핵 자기 공명 영상
  • 자기공명영상(MRI)
  • SMRI
  • 자기공명영상(시술)
  • 구조적 MRI

Ancillary studies

Undergo single fraction SRS

다른 이름들:
  • 정위 외부 빔 조사
  • 정위 외부 빔 방사선 요법
  • 정위 방사선 요법
  • 정위 방사선 수술
  • 정위방사선치료
  • SRS

Undergo fractionated SRS

다른 이름들:
  • 정위 외부 빔 조사
  • 정위 외부 빔 방사선 요법
  • 정위 방사선 요법
  • 정위 방사선 수술
  • 정위방사선치료
  • SRS
다른: 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.

Undergo MRI

다른 이름들:
  • MRI
  • 자기 공명
  • 자기공명영상 스캔
  • 씨
  • MR 이미징
  • MRI 검사
  • NMR 이미징
  • NMRI
  • 의료 영상
  • 자기공명 / 핵자기공명
  • 핵 자기 공명 영상
  • 자기공명영상(MRI)
  • SMRI
  • 자기공명영상(시술)
  • 구조적 MRI

Ancillary studies

Undergo single fraction SRS

다른 이름들:
  • 정위 외부 빔 조사
  • 정위 외부 빔 방사선 요법
  • 정위 방사선 요법
  • 정위 방사선 수술
  • 정위방사선치료
  • SRS

Undergo fractionated SRS

다른 이름들:
  • 정위 외부 빔 조사
  • 정위 외부 빔 방사선 요법
  • 정위 방사선 요법
  • 정위 방사선 수술
  • 정위방사선치료
  • SRS

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Time to local failure or symptomatic radiation brain necrosis of large brain metastasis
기간: 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

2차 결과 측정

결과 측정
측정값 설명
기간
Overall survival (OS)
기간: 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
기간: 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
기간: 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)
기간: 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
기간: 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)
기간: 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)
기간: 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
기간: 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
기간: 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
기간: 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

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

수사관

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

간행물 및 유용한 링크

연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2022년 3월 14일

기본 완료 (추정된)

2027년 8월 1일

연구 완료 (추정된)

2027년 8월 1일

연구 등록 날짜

최초 제출

2022년 1월 11일

QC 기준을 충족하는 최초 제출

2022년 1월 24일

처음 게시됨 (실제)

2022년 2월 3일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 10월 1일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 9월 29일

마지막으로 확인됨

2026년 9월 1일

추가 정보

이 연구와 관련된 용어

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

예

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

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