Ketogenic Diet Survey in Patients With McArdle Disease (GSDV)

February 10, 2023 updated by: Nicoline Løkken

Ketogenic Diet Survey in GSDV

The purpose of this survey is to report experiences with variants of a ketogenic diet in a group of individuals diagnosed with McArdle disease (glycogen storage disease type V). Further more the survey will report on physical activity, fatigue, sleep and quality of life in this cohort.

Study Overview

Status

Completed

Conditions

Detailed Description

Currently, there is no satisfactory treatment for McArdle disease. The limitation in people with McArdle disease is due to a limited availability of energy in the muscle due to affected carbohydrate metabolism. A key element in improving muscle function is therefore to introduce alternative energy sources. Ketone bodies are a well-known source of energy for both brain and muscle. Ketone bodies are produced during fasting or when following a ketogenic diet. A ketogenic diet is a diet high in fat and low in carbohydrates. The classic ketogenic diet contains up to 90% fat, but there are several alternative diets with less fat, including a modified ketogenic diet, Atkins diet, LCHF (low carb high fat), OMAD (one meal a day) and more. This survey will collect information on all variations. The rationale for a ketogenic diet for persons with McArdle disease makes good sense in theory, as the diet would contribute with a new source of energy (ketone bodies) independent of the affected carbohydrate breakdown. However, evidence is sparse on whether the diet actually works. The primary purpose of this survey is to report experiences with variants of the ketogenic diet in a group of individuals diagnosed with McArdle disease. Secondarily this survey will collect information on physical activity, fatigue, sleep and quality of life in this cohort

Study Type

Observational

Enrollment (Actual)

200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Copenhagen, Denmark
        • Copenhagen Neuromuscular Center, Rigshospitalet

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 100 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

McArdle disease

Description

Inclusion Criteria:

  • Verified GSDV diagnosis

Exclusion Criteria:

  • Age under 18 years

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Questions on experiences with a ketogenic diet
Time Frame: Baseline
Survey
Baseline
IPAQ (INTERNATIONAL PHYSICAL ACTIVITY QUESTIONNAIRE) short form
Time Frame: Baseline
Survey
Baseline
MFI-20 (MULTIDIMENSIONAL FATIGUE INVENTORY)
Time Frame: Baseline
Survey
Baseline
ISI (insomnia severity index)
Time Frame: Baseline
Survey
Baseline
MGQOL 15 score (Myasthenia Gravis Quality Of Life)
Time Frame: Baseline
Survey
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

January 10, 2021

Primary Completion (ACTUAL)

November 1, 2022

Study Completion (ACTUAL)

December 1, 2022

Study Registration Dates

First Submitted

October 5, 2020

First Submitted That Met QC Criteria

January 4, 2021

First Posted (ACTUAL)

January 5, 2021

Study Record Updates

Last Update Posted (ACTUAL)

February 13, 2023

Last Update Submitted That Met QC Criteria

February 10, 2023

Last Verified

February 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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