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Brain MetastasisNCT03223675

Neurocognitive Impact and Dose-Effect Relationship of Hippocampal Avoidance During Whole Brain Radiotherapy Plus Simultaneous Integrated Boost - A Prospective Follow-up Study

A study testing hippocampal-sparing WBRT in people with Brain Metastasis and Brain Metastases, run by Chang Gung Memorial Hospital at 1 site in Taiwan.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

For newly-diagnosed patients with brain metastasis, whole brain radiation therapy (WBRT) probably remains a common palliative management even for those with oligometastatic brain disease. However, WBRT-related late sequelae, particularly a decline in neurocognitive functions (NCFs), are a major concern. Read more about this study

Who is it for?
Ages 20 to 84 years
Conditions the study is for
Brain Metastasis, Brain Metastases
What is being tested?
hippocampal-sparing WBRT
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteTaiwan
Study dates
1 Apr 2016to 31 Dec 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 84 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with pathologically-confirmed non-hematopoietic malignancy who are referred for therapeutic or prophylactic WBRT
  • Good performance status no worse than Eastern Cooperative Group (ECOG) of 2 or a general status of Karnofsky Score (KPS) at least 70 %
  • The number and extent of brain metastatic lesions should be no more than three metastatic foci with a greatest diameter no more than 3 cm

Who cannot join

  • Patients with MRI-identified metastasis within 5 mm perihippocampally
  • Patients with metastasis involving the brain stem
  • Clinical suspicion of leptomeningeal spreading
  • Patients with a solitary brain metastatic lesion which had been totally removed
  • History of prior radiotherapy including stereotactic radiosurgery delivered to brain/head region for any reasons

Trial locations and contacts

1 site in 1 country.

Chi-Cheng Chuang, M.D. contact

+886-33281200 ext. 2412

ccc2915@cgmh.org.tw

Shinn-Yn Lin, M.D. contact

+886-33281200 ext. 7172

rt3126@gmail.com

Taiwan1 site, 1 recruiting
  • Chang Gung Memorial Hospital

    Taoyuan, 333

    Shinn-Yn Lin, M.D., +886-33281200 ext. 7172, rt3126@gmail.com

    Recruiting

Other trials in Taiwan

About this study

For newly-diagnosed patients with brain metastasis, whole brain radiation therapy (WBRT) probably remains a common palliative management even for those with oligometastatic brain disease. However, WBRT-related late sequelae, particularly a decline in neurocognitive functions (NCFs), are a major concern. More importantly, in patients with limited brain metastases and a fair/good performance status, sparing the radiosensitive and vulnerable structures which are responsible for essential NCFs during the WBRT course is one of the reasonable strategies to postpone and prevent the development of WBRT-induced neurocognitive impairments. Actually, radiation-related neurocognitive dysfunction is usually characterized as a decline involving learning and memory, in which the extremely radiosensitive hippocampus indeed plays a critical role. In addition to the neurocognitive preservation by virtue of sparing the radiosensitive structures like the hippocampus, durable intracranial tumor control critically depends on an escalated radiotherapeutic dose level which is adequate enough to eradicate gross metastatic brain lesions. Therefore, in order to achieve both hippocampal sparing and simultaneous integrated boost(s) to gross metastatic foci, a specialized WBRT technique, hippocampal avoidance during WBRT plus simultaneous integrated boost (SIB) will be adopted in this prospective study. Moreover, the dose-effect relationship would be analyzed in order to explore the correlation between the equivalent uniform dose (EUD) irradiating the hippocampus and the neurocognitive change/decline after the above WBRT course measured by objective neurocognitive test tools. Newly-diagnosed cancer patients harboring 1-3 gross metastatic lesions but still in fair/good performance statuses are potentially eligible. All recruited patients should receive baseline functional brain MRI examination and baseline neurobehavioral assessment. Treatment planning will be designed via the technique of volumetric-modulated arc therapy (VMAT) to achieve both hippocampal avoidance and simultaneous integrated boost(s) to gross metastatic lesions. Except for the above regions for which conformal avoidance or SIB is attempted, the prescribed dose to the remaining brain parenchyma will be consistently 3000 cGy in 12 fractions. Accordingly, a battery of neuropsychological measures, which includes 7 standardized neuropsychological tests (e.g., executive functions, verbal and non-verbal memory, working memory, and psychomotor speed), is used to evaluate neurobehavioral functions for our registered patients. The primary outcome measure is delayed recall, as determined by the change/decline in verbal memory or non-verbal memory, from the baseline assessment to 4 months after the start of the WBRT course. This prospective cohort study aims to examine thoroughly the impact of a specialized WBRT technique, integrating both simultaneous integrated boost(s) delivered to gross metastatic foci and conformal hippocampal avoidance, on the status of NCF change/decline in patients with oligometastatic brain disease. It is anticipated that intracranial local control will be more sustainable and durable resulting from the escalated focal dose of SIBs. Ultimately, we also expect the dose-effect relationship will be clearly demonstrated after investigating the correlation between the hippocampal dosimetry and the status of NCF change/decline after receiving HA-WBRT plus SIB.

Being tested
hippocampal-sparing WBRT
Medical subject headings
Brain Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • hippocampal-sparing WBRTRadiation

Study groups in NCT03223675
Study groupRoleWhat they receive
Hippocampus-sparing WBRT plus SIBExperimentalAll studied patients should undergo a computed tomography (CT) simulation scan encompassing the entire head region with 1.25-mm slice thickness using a thermoplastic mask for immobilization. To achieve conformal hippocampal sparing during the delivery of whole brain radiation (WBRT) and simultaneous integrated boost(s) (SIB), the technique of volumetric modulated arc therapy (VMAT) via Linac-based RapidArc®.In terms of dose prescription, a dose of 30 Gy in 12 fractions was prescribed to whole-brain planning target volume (PTV) containing the normal brain parenchyma; an simultaneous integrated boost up to 120 - 150% is attempted to irradiate the gross metastatic foci.
Receives: Radiation: hippocampal-sparing WBRT

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The primary endpoint is delayed recall, as determined by the change/decline in verbal memory (WMS III- Word List score) from the baseline assessment to 4 months after the start of HS-WBRT.

    Neurocognitive assessment: including memory, executive functions, and psychomotor speed. This neurocognitive outcome was delayed recall, as determined by the change/decline in verbal memory [Wechsler Memory Scale - 3rd edition (WMS III) - Word List score] from the baseline assessment to 4 months after the start of the course of WBRT with hippocampus sparing (HS-WBRT). Additionally, the follow-up of neurocognitive assessment will also be administered at 12 months and up to 18 months after the start of HS-WBRT

    Measured: 4 months after the start of HS-WBRT

  2. The primary endpoint is delayed recall, as determined by the change/decline in non-verbal memory (WMS III- Visual Reproduction score) from the baseline assessment to 4 months after the start of HS-WBRT

    Neurocognitive assessment: including memory, executive functions, and psychomotor speed. This neurocognitive outcome was delayed recall, as determined by the change/decline in non-verbal memory (WMS III- Visual Reproduction score) from the baseline assessment to 4 months after the start of the course of WBRT with hippocampus sparing (HS-WBRT). Additionally, the follow-up of neurocognitive assessment will also be administered at 12 months and up to 18 months after the start of HS-WBRT.

    Measured: 4 months after the start of HS-WBRT

Secondary outcomes (2)
  1. Overall survival time, indicated by the time from the date of recruitment to the date of expiring

    Measured: up to 18 months

  2. The time from the date of recruitment to that of intracranial progression/failure noted on brain MRI or CT

    Measured: up to 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jul 2017
  2. Study start1 Apr 2016
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion31 Dec 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03223675
Sponsor's protocol ID
104-9176A3
Status last verified
Apr 2023
First submitted
22 Jun 2017
Last updated
1 May 2023
Results posted
No
Individual data sharing
No

Publications

  • Lin SY, Tsan DL, Chuang CC, Yang CC, Pai PC, Wang CL, Wu YM, Lee CC, Lin CH, Wei KC, Chou WC. Oncological Outcomes After Hippocampus-Sparing Whole-Brain Radiotherapy in Cancer Patients With Newly Diagnosed Brain Oligometastases: A Single-Arm Prospective Observational Cohort Study in Taiwan. Front Oncol. 2022 Jan 12;11:784635. doi: 10.3389/fonc.2021.784635. eCollection 2021.

    PubMed 35096584

Questions about this trial

What is this clinical trial studying?

A study testing hippocampal-sparing WBRT in people with Brain Metastasis and Brain Metastases, run by Chang Gung Memorial Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 1 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Chi-Cheng Chuang, M.D. (+886-33281200 ext. 2412, ccc2915@cgmh.org.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The primary endpoint is delayed recall, as determined by the change/decline in verbal memory (WMS III- Word List score) from the baseline assessment to 4 months after the start of HS-WBRT. (time frame: 4 months after the start of HS-WBRT). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03223675, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2023.

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