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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03011203
Other study ID # NL59081.042.16
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 10, 2017
Est. completion date March 23, 2018

Study information

Verified date April 2018
Source University Medical Center Groningen
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The investigators will study if acute nutritional ketosis in adult GSD IIIa patients can boost muscle mitochondrial function in vivo.


Description:

Glycogen Storage Disease type IIIa (GSD IIIa) is an inborn error of carbohydrate metabolism caused by impaired glycogen debranching enzyme (GDE) activity. The ageing GSD IIIa cohort shows that muscle involvement -despite dietary management- is a common disabling phenotype in adulthood. Currently, no specific therapy has been established for muscle problems in adult GSD IIIa patients.

However, it could be hypothesized that nutritional ketosis (NK) will be highly beneficial to patients. Amongst others, ketone bodies could take on the role of primary energy source in exercising muscle. Recently, acute NK in exercise was studied in humans. NK was found to enhance muscle mitochondrial function in athletes.

The investigators will study if acute NK in adult GSD IIIa patients can boost muscle mitochondrial function in vivo.


Recruitment information / eligibility

Status Completed
Enrollment 6
Est. completion date March 23, 2018
Est. primary completion date March 23, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria:

- GSD III confirmed with enzyme assay and/or AGL mutation analysis and GSD IIIa further specified as deficient debranching enzyme activity in muscle or clinical and/or biochemical signs of cardiac and/or skeletal muscular involvement.

Exclusion Criteria:

- contraindications for MRI studies (assessed by standardised questionnaire)

- inability to perform bicycle exercise.

- intercurrent illness which may influence exercise tolerance (anemia, musculoskeletal injury, or other undiagnosed illness under investigation).

- known coronary artery disease, positive history for angina or cardiomyopathy.

- insulin-dependent diabetes mellitus.

- loss of, or an inability to give informed consent.

- pregnancy or current breastfeeding.

- any other cause which in the opinion of the investigators, may affect the participant's ability to participate in the study

Study Design


Intervention

Other:
physical exercise
In session II and III participants will perform an exercise test on a bicycle inside and outside the MR scanner.

Locations

Country Name City State
Netherlands University of Groningen, UMC Groningen Groningen

Sponsors (5)

Lead Sponsor Collaborator
University Medical Center Groningen Stichting Metakids, Stichting Stofwisselkracht, University of Oxford, University of the Faroe Islands

Country where clinical trial is conducted

Netherlands, 

References & Publications (5)

Cox PJ, Kirk T, Ashmore T, Willerton K, Evans R, Smith A, Murray AJ, Stubbs B, West J, McLure SW, King MT, Dodd MS, Holloway C, Neubauer S, Drawer S, Veech RL, Griffin JL, Clarke K. Nutritional Ketosis Alters Fuel Preference and Thereby Endurance Performance in Athletes. Cell Metab. 2016 Aug 9;24(2):256-68. doi: 10.1016/j.cmet.2016.07.010. Epub 2016 Jul 27. — View Citation

Diekman EF, Visser G, Schmitz JP, Nievelstein RA, de Sain-van der Velden M, Wardrop M, Van der Pol WL, Houten SM, van Riel NA, Takken T, Jeneson JA. Altered Energetics of Exercise Explain Risk of Rhabdomyolysis in Very Long-Chain Acyl-CoA Dehydrogenase Deficiency. PLoS One. 2016 Feb 16;11(2):e0147818. doi: 10.1371/journal.pone.0147818. eCollection 2016. — View Citation

Preisler N, Laforêt P, Madsen KL, Prahm KP, Hedermann G, Vissing CR, Galbo H, Vissing J. Skeletal muscle metabolism is impaired during exercise in glycogen storage disease type III. Neurology. 2015 Apr 28;84(17):1767-71. doi: 10.1212/WNL.0000000000001518. Epub 2015 Apr 1. — View Citation

Sentner CP, Hoogeveen IJ, Weinstein DA, Santer R, Murphy E, McKiernan PJ, Steuerwald U, Beauchamp NJ, Taybert J, Laforêt P, Petit FM, Hubert A, Labrune P, Smit GPA, Derks TGJ. Glycogen storage disease type III: diagnosis, genotype, management, clinical course and outcome. J Inherit Metab Dis. 2016 Sep;39(5):697-704. doi: 10.1007/s10545-016-9932-2. Epub 2016 Apr 22. — View Citation

Verbeek RJ, Sentner CP, Smit GP, Maurits NM, Derks TG, van der Hoeven JH, Sival DA. Muscle Ultrasound in Patients with Glycogen Storage Disease Types I and III. Ultrasound Med Biol. 2016 Jan;42(1):133-42. doi: 10.1016/j.ultrasmedbio.2015.08.013. Epub 2015 Oct 3. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Description of in vivo energy and proton balance during exercise in MR scanner with and without ketone ester drink: steady-state intramuscular levels of glycogen, Pi, PCr and pH and kinetic rate constant of metabolic recovery. 10 minutes; during in-magnet exercise test of session II and III.
Secondary time of individual desired workload #minutes through completion of the maximum exercise test (of approximately 12 minutes) during study session I.
Secondary completion of supine bicycling bout at desired workload in scanner (yes/no; if no, #minutes) 10 min
Secondary Muscle ultrasound density of the biceps, quadriceps, calf (gastrocnemius and/or soleus) and tibialis anterior muscles. Will be performed during study session I by a neurologist. Together with the muscle force examination this assessment will take 1.5 hour.
Secondary Muscle force unilateral Will be performed during study session I by a neurologist. Together with the muscle ultrasound this assessment will take 1.5 hour.
Secondary Subjective fatigue and muscle ache score scale 0-10 after each exercise bout and 24 hours after exercise
Secondary International Physical Activity Questionnaire This questionnaire will take 10 minutes to fill out. Participants will be asked to fill out the questionnaire one week before study session II and III
Secondary Structural muscle parameters: fat infiltration. During the in-magnet exercise test of 10 minutes during session II and III
Secondary Change in blood glucose levels #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood ketones level (ß-hydroxybutyrate, acetoacetate). #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Change of blood pH #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood levels of free fatty acids #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood levels of insulin #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood levels of creatine kinase #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood levels of ammonia #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood levels of NT-proBNP #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Blood levels of lactate #1 and #2 at baseline, #3 after 10 min, #4 after 15 minutes, #5 at the start of bicycle exercise test inside scanner, #6 after 10 minutes of in-magnet exercise and #7 three hours post-exercise inside scanner. Up to 7 samples will be taken during the 25 minutes exercise test (session II and III).
Secondary Change of urine levels of myoglobin, ketones, tetraglucoside Urine will be collected through study session II and III. A study session will take place from 8 am till 2 pm.
Secondary optional: muscle metabolic profile (according to Cox et. al. 2016] of a muscle biopsy. optional, on a patient-voluntary basis. If consent has been given a total of 4 muscle biopsies will be performed. This procedure takes 30 minutes each time and will be performed prior to and immediately post-exercise during study session II and III.
Secondary optional: individual phenotypic muscle properties (fiber type, mitochondrial density, capillary density optional, on a patient-voluntary basis. If consent has been given a total of 4 muscle biopsies will be performed. This procedure takes 30 minutes each time and will be performed prior to and immediately post-exercise during study session II and III.
Secondary Individual physical performance during exercise; VO2 and VCO2 dynamics. During session I; the maximum exercise test of approximately 12 minutes and during the exercise tests of 15 minutes outside the MR scanner at session II and III.