Effects of a Ketogenic Diet on Acute Stroke

NCT ID: NCT01997749

Last Updated: 2014-07-18

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

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

64 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-05-31

Study Completion Date

2014-02-28

Brief Summary

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The purpose of this controlled, randomized intervention is to investigate whether a fat-based (ketogenic) diet given for a week has a positive effect on blood sugar, mortality and function in patients hospitalized with acute stroke compared to the effect of a usual diet.

The study hypothesis is that a ketogenic diet and reduced availability of glucose to the brain cells will reduce the volume of neuronal damage in the brain and improve function.

The intervention will take place at the neurological units of Glostrup and Bispebjerg Hospital in Denmark.

Detailed Description

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A ketogenic diet can induce ketosis after a period of 2-3 days and offer the brain an alternative energy substrate to glucose in the form of ketone bodies. Feeding the brain ketone bodies can potentially benefit a stroke patient's brain in several ways:

Stroke is characterized by impaired blood and oxygen supply to brain cells. This can cause glucose to convert to lactate which is toxic for the brain. Decreasing glucose availability to brain cells may thus potentially decrease the area of damage in the ischemic penumbra (perifephery of the stroke). Compared with sugar, burning ketone bodies requires less oxygen to produce the same amount of energy, suggesting that brain cells could have a potential greater chance of surviving during circumstances of reduced oxygen supply. By decreasing mitochondria activity, ROS synthesis is also decreased, which can help decrease the necrotic area around the ischemic penumbra. Furthermore, the ketogenic diet does not induce an increase in blood sugar which could be an advantage since many stroke patients are admitted with hyperglycemia associated with a worse outcome.

Conditions

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Acute Stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Ketogenic diet

Acute stroke patients will receive a ketogenic diet (Ketocal 4:1 and ketogenic meals) for the first week after inclusion

Group Type EXPERIMENTAL

Ketocal 4:1 (Nutricia)

Intervention Type DIETARY_SUPPLEMENT

Ketogenic meals

Intervention Type DIETARY_SUPPLEMENT

Control diet

Acute stroke patients will receive a control diet (the regular diet, enteral or oral, offered at the hospitals) for the first week after inclusion.

Group Type ACTIVE_COMPARATOR

Control diet: Regular diet offered at the hospitals

Intervention Type DIETARY_SUPPLEMENT

Interventions

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Ketocal 4:1 (Nutricia)

Intervention Type DIETARY_SUPPLEMENT

Control diet: Regular diet offered at the hospitals

Intervention Type DIETARY_SUPPLEMENT

Ketogenic meals

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Patients with ischemic or hemorrhagic stroke.
* NIHSS score of at least 5.
* Both primary and recurrent cases.
* Inclusion as early as possible, but no later than 72 hours from symptom onset.
* Patients with expected hospitalization for a minimum of seven days.
* Adult patients with cognitive ability to give informed consent.
* Patients with writing and orally accepted participation.

Exclusion Criteria

* Patients with SAH and traumatic hematoma.
* Patients with pancreatic insufficiency (steatorrhea).
* Patients unable to give informed consent.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Glostrup University Hospital, Copenhagen

OTHER

Sponsor Role collaborator

Bispebjerg Hospital

OTHER

Sponsor Role collaborator

University of Copenhagen

OTHER

Sponsor Role lead

Responsible Party

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Arne Astrup

Dr.Med.Sci./Ph.D.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jens Rikardt Andersen, MD

Role: PRINCIPAL_INVESTIGATOR

University of Copenhagen

Locations

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Glostrup Hospital

Glostrup Municipality, Copenhagen, Denmark

Site Status

Countries

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Denmark

Other Identifiers

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G-1-2013-012

Identifier Type: -

Identifier Source: org_study_id

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