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Local Radiotherapy Following Complete Resection of a Brain Metastasis

17 maj 2019 uppdaterad av: Anna Bruynzeel, Amsterdam UMC, location VUmc

Postoperative Local Stereotactic Radiotherapy Versus Observation Following a Complete Resection of a Single Brain Metastasis

Objective: To improve local control following complete resection of a single brain metastasis using fractionated local stereotactic radiotherapy, whilst maintaining neurological functioning, neurocognition and quality of life.

Study design: Multicenter randomized phase III, with at least three high-volume Dutch centers participating in the trial. Stratification on primary tumor type and age.

Study population: Patients undergoing complete resection of a single brain metastasis, confirmed by an early (i.e. within 72 hours) postoperative contrast-enhanced MR scan.

Study intervention: Patients will be randomized between observation alone (standard arm) and local stereotactic radiotherapy in three fractions of 8 Gy to the surgical cavity (study arm).

Main study parameters: Primary objective: local control rate at 6 months. Secondary objectives: local control rate at 12 months, neurological functioning, freedom from clinical neurological progression, performance status, quality of life, toxicity, steroid use, neurocognition and overall survival.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

The objective of this study is to improve local control following complete resection of a single brain metastasis of solid tumors using fractionated local stereotactic radiotherapy, whilst maintaining neurological functioning, neurocognition and quality of life. The study is performed in the form of a multicenter randomized phase III, with at least three high-volume Dutch centers participating in the trial. Stratification will be performed on primary tumor type and age. A total of 70 patients will be included. Inclusion is restricted to patients who underwent a complete resection of a single brain metastasis, confirmed by an early (i.e. within 72 hours) postoperative contrast-enhanced magnetic resonance (MR) scan. Patients will be randomized between observation alone (standard arm) and local stereotactic radiotherapy in three fractions of 8 Gy to the surgical cavity (study arm).The main study parameters are: local control rate at 6 months (primary outcome measure) and local control rate at 12 months, neurological functioning, freedom from clinical neurological progression, performance status, quality of life, toxicity, steroid use, neurocognition and overall survival (secondary outcome measures). Follow up will be performed at three-monthly interval during the first two years, including MRI scans. Quality of life questionaires and neurocognitive functioning tests will be performed at fixed intervals during follow-up.

Studietyp

Interventionell

Inskrivning (Faktisk)

70

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

      • Amsterdam, Nederländerna, 1066CX
        • Netherlands Cancer Institute - Antoni van Leeuwenhoek
      • Amsterdam, Nederländerna, 1081HV
        • VU University Medical Center

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Age of 18 years or older.
  • Radiologically confirmed complete resection of a single brain metastasis on a contrast-enhanced MRI within 72 h after resection.
  • Primary solid tumor, excluding hematologic malignancy, germ cell tumor, small cell lung cancer.
  • Stable extracranial tumor (primary tumor and/or systemic metastases) during the last three months with or without treatment or progressive extracranial tumor and/or systemic metastases for which effective treatment is available.
  • World Health Organization (WHO) performance score 0-2.
  • Ability to provide written informed consent.

Exclusion Criteria:

  • Prior treatment for brain metastases (i.e. surgery, stereotactic radiotherapy or WBRT).
  • Distant brain metastases or radiological findings on MRI suspected for leptomeningeal tumor spread on the postoperative MRI.
  • Concurrent use of systemic therapy during local stereotactic radiotherapy

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Inget ingripande: observation
Watchful waiting
Aktiv komparator: local stereotactic radiotherapy (SRT)
local SRT in three fractions of 8 Gy to the surgical cavity
local stereotactic radiotherapy in three fractions of 8 Gy to the surgical cavity
Andra namn:
  • stereotaktisk strålbehandling
  • strålkirurgi

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
local control rate
Tidsram: at 6 months
as assessed on follow-up MRI scans
at 6 months

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Decrease in neurocognitive test results using the Hopkins Verbal Learning Test Revised (HVLT-R), in full cohorts
Tidsram: baseline, at 3 months, 6 months and 12 months
Neurocognitive testing will be performed at baseline, at three, six and twelve months follow-up using the Hopkins Verbal Learning Test Revised (HVLT-R). The HVLT-R is one of the components used to form the core set of cognitive tests recommended to use in oncology trials. This test measures immediate memory span, provides a learning curve, measures both short-term and longer-term retention, and allows for a comparison between retrieval efficiency and learning. This version includes 3 learning trials of a 12-word list, an interval of 20 minutes a delayed recall, and a recognition trial consisting of the target words interspersed with distractor words. The score on the recognition trial is the total number of correct response. This measure has adequate psychometric properties and 6 multiple forms.
baseline, at 3 months, 6 months and 12 months
Decrease in specified neurocognitive test results using the Trail Making A and B, in full cohorts
Tidsram: baseline, at 3 months, 6 months and 12 months
Neurocognitive testing will be performed at baseline, at three, six and twelve months follow-up using the Trail Making A and B. This test is one of the components used to form the core set of cognitive tests recommended to use in oncology trials. This is a test of visual conceptual and visuomotor tracking. It measures psychomotor speed and aspects of executive function. It is given in two parts, A and B. The subject must first draw lines to connect consecutively numbered circles on one work sheet (part A) and then connect the same number of consecutively numbered and lettered circles on another worksheet by alternating between the two sequences (part B). The subject is urged to connect the circles as fast as possible
baseline, at 3 months, 6 months and 12 months
Decrease in neurocognitive test results using the Controlled Oral Word Association (COWA), in full cohorts
Tidsram: baseline, at 3 months, 6 months and 12 months
Neurocognitive testing will be performed at baseline, at three, six and twelve months follow-up using the Controlled Oral Word Association (COWA). The COWA is one of the components used to form the core set of cognitive tests recommended to use in oncology trials. This test measures speeded verbal fluency and aspects of executive function. In this test, subjects are asked to generate as many words as possible in 1 minute beginning with "B", "D," and "H". It has two forms.
baseline, at 3 months, 6 months and 12 months
Decrease in neurocognitive test results using using the Wechsler Adult Intelligence Scale (WAIS) III Digit Span and WAIS III Digit Symbol, in full cohorts
Tidsram: baseline, at 3 months, 6 months and 12 months

Neurocognitive testing will be performed at baseline, at three, six and twelve months follow-up using the WAIS III Digit Span and WAIS III Digit Symbol. These added cognitive tests are also chosen based on their proven sensitivity to measure change in neuro-oncology patients. The subtest of the WAIS-III (Digit Span) involves forward and backward repetitions of series of digits and provides measures of concentration. This measure has adequate psychometric properties.

The subtest of the WAIS III (Digit Symbol) involves a symbol substitution task that requires visual-motor coordination, motor persistence, and sustained attention. The test is used as a test for information processing speed. The task consists of pairing numbers to nonsense symbols as quickly as possible.

baseline, at 3 months, 6 months and 12 months
Decrease in neurocognitive test results using the Grooved Pegboard, in full cohorts
Tidsram: baseline, at 3 months, 6 months and 12 months
Neurocognitive testing will be performed at baseline, at three, six and twelve months follow-up using the Grooved Pegboard. This added cognitive test is also chosen based on its proven sensitivity to measure change in neuro-oncology patients. This test measures motor speed and dexterity and is an adjusted version of the Purdue Pegboard test. The test consists out of plywood with 2 columns of 30 holes and a zinced bowl filled with metal pegs above each column. Subjects are offered one minute to put as many pegs as possible into the holes. The test has two different trials: dominant hand only and non-dominant hand only.
baseline, at 3 months, 6 months and 12 months

Samarbetspartners och utredare

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 maj 2015

Primärt slutförande (Faktisk)

1 maj 2017

Avslutad studie (Faktisk)

1 maj 2017

Studieregistreringsdatum

Först inskickad

19 februari 2016

Först inskickad som uppfyllde QC-kriterierna

31 mars 2016

Första postat (Uppskatta)

6 april 2016

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

20 maj 2019

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

17 maj 2019

Senast verifierad

1 maj 2019

Mer information

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