The Safety and Scientific Validity of Low-dose Whole Brain Radiotherapy in Alzheimer's Disease.

NCT ID: NCT04203121

Last Updated: 2020-02-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-04-01

Study Completion Date

2020-07-31

Brief Summary

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Alzheimer's disease is the most frequent neurocognitive disorder associated with dementia, with a constantly increasing prevalence associated with an aging population. Amyloid deposition is considered as the first molecular event on the onset of Alzheimer's disease. It has already been demonstrated that low-dose radiotherapy is capable of reducing Alzheimer's disease-associated amyloid-β plaques and improving cognitive function in an animal model. In human, low-dose radiotherapy has demonstrated effectiveness in reducing bronchial amyloidosis.

The present study aims to conduct research by including 10 patients with a diagnosis of mild or moderately severe Alzheimer's disease and with evidence of amyloid pathology. Furthermore, the aim is to demonstrate the effectiveness of low-dose radiotherapy in reducing amyloid deposits in the human brain using molecular imaging (Flutemetamol(18F) PET) along with treatment of the specific target.

Detailed Description

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The investigators decided to use fractionated whole brain radiation doses of 1.8 Gy x 5 and 1.8 Gy x 3. Subjects will be followed with neurocognitive testing at 6 months post radiotherapy.

subjects 1-5 - 9Gy in 5 daily fractions

subjects 6-10 - 5.4Gy in 3 daily fractions

Conditions

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Alzheimer Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

arm 1 :subjects 1-5 - 9Gy in 5 daily fractions

arm 2 :subjects 6-10 - 5.4Gy in 3 daily fractions
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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arm1

An initial 5 patients will be enrolled in the first treatment scheme and will be followed for 6 months after completion of treatment to assess safety and any toxicity events associated with treatment.

subjects 1-5 : 9 Gy in 5 fractions of 1.8 Gy on 5 consecutive days

Group Type EXPERIMENTAL

low dose whole brain radiation to treat Alzheimer disease

Intervention Type RADIATION

subjects 1-5 : 9Gy in 5 daily fractions

subjects 6-10 : 5.4Gy in 3 daily fractions

arm2

Subjects in this arm will be enrolled in the second treatment scheme and will be followed for 6 months after completion of treatment to assess safety and any toxicity events associated with treatment.

subjects 6-10 : 5.4 Gy in 3 fractions of 1.8 Gy on 3 consecutive days

Group Type EXPERIMENTAL

low dose whole brain radiation to treat Alzheimer disease

Intervention Type RADIATION

subjects 1-5 : 9Gy in 5 daily fractions

subjects 6-10 : 5.4Gy in 3 daily fractions

Interventions

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low dose whole brain radiation to treat Alzheimer disease

subjects 1-5 : 9Gy in 5 daily fractions

subjects 6-10 : 5.4Gy in 3 daily fractions

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Clinical diagnosis of mild or moderate Alzheimer's disease.
* Amyloid PET scan positivity.
* Korean Mini-Mental State Examination score ≥10 and ≤24.
* Clinical dementia rating scale 0.5, 1 or 2.
* Ability to undergo neurocognitive assessment at baseline visit, alone or accomparined by a caregiver.
* Ability to understand the clinical trial and give an informed consent

Exclusion Criteria

* previous therapeutic whole brain irradiation
* Evidence of seizure activity
* Evidence of active dermatological skin disease of the scalp.
* History of malignant tumors.
* Pregnant or breastfeeding.
* If the researcher determines that participation in this study is inadequate because of other findings that are considered clinically important.
Minimum Eligible Age

50 Years

Maximum Eligible Age

95 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Kyung Hee University Hospital at Gangdong

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Kyung Hee University Hospital at Gangdong

Seoul, , South Korea

Site Status RECRUITING

Countries

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South Korea

Central Contacts

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WeonKyu Chung, Dr.

Role: CONTACT

821024187393

Facility Contacts

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weonkyu chung, Dr.

Role: primary

821024187393

Mijoo Chung, Dr.

Role: backup

Other Identifiers

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KHNMC 2018-09-022-003

Identifier Type: -

Identifier Source: org_study_id

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