Energy Supplements to Improve Exercise Tolerance in Metabolic Myopathies

Glycogen Storage Disease Type III Clinical Trial

Official title:

Energy Supplements to Improve Exercise Tolerance in Metabolic Myopathies

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02448667
• Other study ID #: H-4-2014-014
• Status: Completed
• Phase: N/A
• Start date: January 2015
• Est. completion date: May 25, 2021

Study information

• Verified date: February 2024
• Source: Rigshospitalet, Denmark
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Patients suffering from the metabolic myopathy Glycogen Storage Disease type IIIa (GSDIIIa) have a problem releasing sugar stored in cells that is needed for energy production. This causes several systemic impairments, but only recently have the exercise-related symptoms in the muscles been examined. A previous study showed signs that intravenous infusion of glucose relieves some of these symptoms. The purpose of this study is to investigate in a randomized and placebo-controlled fashion whether oral ingestion of sugar can alleviate muscular symptoms in patients with GSDIIIa.

Description:

It has recently been documented how patients with GSDIIIa have a moderate to severely reduced exercise capacity, and that exercise induces muscle pain and cramps. These symptoms are caused by the inability to mobilize skeletal muscle glycogen and are most likely the consequence of a severe energy deficiency within muscles. The study changed the phenotype of GSDIIIa, to include exercise-induced symptoms, which is a typical presentation in other metabolic myopathies. It also documented that exercise capacity was significantly improved while exercise-induced muscular symptoms were relieved by an intravenous glucose infusion. Based on these findings, this study wishes to investigate if oral ingestion of sucrose has the same effects on work capacity on a larger number of patients, in a randomized, placebo-controlled, cross-over setup. Ingestion of sucrose has the potential to be an effective, cheap and easily accessible dietary treatment of muscular symptoms in GSDIIIa.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 6
• Est. completion date: May 25, 2021
• Est. primary completion date: April 17, 2017
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Genetically and/or biochemically verified GSDIIIa.

• 18 years or older.

Exclusion Criteria:

• Clinically significant cardiac or pulmonary disease.

• Pregnancy or lactation.

• Severe mental disorders or participants that are in other ways unable to understand the purpose of the trials.

• Subjects where the investigator assess that it is not possible or very difficult to place an intravenous catheters.

• Other conditions of the joints or skeletal muscle such as arthritis or sprains. If the condition is expected to resolve before the study inclusion period is stopped, the subject may be included at a later time.

• Moderate to severe muscle weakness, where the participants are not expected to complete 10 minutes of cycle-ergometry exercise at 70 % of VO2peak.

• Verified diabetes.

• Participation in other clinical trials that may interfere with the results.

• Medications that may interfere with the results or increase the risk of bleeding.

• Blood-clotting or bleeding disorders.

• Blood donation one month or less prior to inclusion.

Related Conditions & MeSH terms

• Glycogen Storage Disease
• Glycogen Storage Disease Type III

Intervention

Dietary Supplement:
• FAXE Kondi
Sucrose and glucose containing softdrink
• Faxe Kondi Free
Diet softdrink with artificial sweeteners aspartame and acesulfame potassium. Both sweeteners are approved for use as food additives in the European Union and by the FDA. Aspartame metabolism is well understood and normal doses does not affect plasma concentrations of lipids, amino acids, glucose levels, key regulatory hormones or skeletal muscle metabolism. Acesulfame Potassium is not metabolized in humans and is excreted as the parent compound in urine. Since the two artificial sweeteners does not affect skeletal muscle metabolism or blood glucose levels, and both compounds have a well documented safety profiles, FAXE Kondi Free is considered to be an ideal placebo soft drink in this study.

Locations

Country	Name	City	State
Denmark	Copenhagen Neuromuscular Center, department 3342, Rigshospitalet	Copenhagen	Region Hovedstaden

Sponsors (1)

Lead Sponsor	Collaborator
Rigshospitalet, Denmark

Country where clinical trial is conducted

Denmark, 

References & Publications (16)

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Chattopadhyay S, Raychaudhuri U, Chakraborty R. Artificial sweeteners - a review. J Food Sci Technol. 2014 Apr;51(4):611-21. doi: 10.1007/s13197-011-0571-1. Epub 2011 Oct 21. — View Citation

Coleman RA, Winter HS, Wolf B, Gilchrist JM, Chen YT. Glycogen storage disease type III (glycogen debranching enzyme deficiency): correlation of biochemical defects with myopathy and cardiomyopathy. Ann Intern Med. 1992 Jun 1;116(11):896-900. doi: 10.7326/0003-4819-116-11-896. — View Citation

Coyle EF. Carbohydrate supplementation during exercise. J Nutr. 1992 Mar;122(3 Suppl):788-95. doi: 10.1093/jn/122.suppl_3.788. — View Citation

DiMauro S, Hays AP, Tsujino S. Metabolic Disorders Affecting Muscle. In: Engel AG, Franzini-Armstrong C, eds. Myology, 3rd ed McGraw-Hill, 2004:1535-1558

Dupont WD, Plummer WD Jr. Power and sample size calculations. A review and computer program. Control Clin Trials. 1990 Apr;11(2):116-28. doi: 10.1016/0197-2456(90)90005-m. — View Citation

EFSA ANS Panel (EFSA Panel on Food Additives and Nutrient Sources added to food), 2013. Scientific Opinion on the re-evaluation of aspartame (E 951) as a food additive. EFSA Journal 2013;11(12):3496, 263 pp. doi:10.2903/j.efsa.2013.3496

Haller RG, Vissing J. Spontaneous "second wind" and glucose-induced second "second wind" in McArdle disease: oxidative mechanisms. Arch Neurol. 2002 Sep;59(9):1395-402. doi: 10.1001/archneur.59.9.1395. — View Citation

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Kishnani PS, Austin SL, Arn P, Bali DS, Boney A, Case LE, Chung WK, Desai DM, El-Gharbawy A, Haller R, Smit GP, Smith AD, Hobson-Webb LD, Wechsler SB, Weinstein DA, Watson MS; ACMG. Glycogen storage disease type III diagnosis and management guidelines. Genet Med. 2010 Jul;12(7):446-63. doi: 10.1097/GIM.0b013e3181e655b6. Erratum In: Genet Med. 2010 Sep;12(9):566. — View Citation

Magnuson BA, Burdock GA, Doull J, Kroes RM, Marsh GM, Pariza MW, Spencer PS, Waddell WJ, Walker R, Williams GM. Aspartame: a safety evaluation based on current use levels, regulations, and toxicological and epidemiological studies. Crit Rev Toxicol. 2007;37(8):629-727. doi: 10.1080/10408440701516184. — View Citation

Maki DG, Kluger DM, Crnich CJ. The risk of bloodstream infection in adults with different intravascular devices: a systematic review of 200 published prospective studies. Mayo Clin Proc. 2006 Sep;81(9):1159-71. doi: 10.4065/81.9.1159. — View Citation

Marinovich M, Galli CL, Bosetti C, Gallus S, La Vecchia C. Aspartame, low-calorie sweeteners and disease: regulatory safety and epidemiological issues. Food Chem Toxicol. 2013 Oct;60:109-15. doi: 10.1016/j.fct.2013.07.040. Epub 2013 Jul 23. — View Citation

Preisler N, Laforet P, Madsen KL, Hansen RS, Lukacs Z, Orngreen MC, Lacour A, Vissing J. Fat and carbohydrate metabolism during exercise in late-onset Pompe disease. Mol Genet Metab. 2012 Nov;107(3):462-8. doi: 10.1016/j.ymgme.2012.08.019. Epub 2012 Aug 31. — View Citation

Preisler N, Pradel A, Husu E, Madsen KL, Becquemin MH, Mollet A, Labrune P, Petit F, Hogrel JY, Jardel C, Maillot F, Vissing J, Laforet P. Exercise intolerance in Glycogen Storage Disease Type III: weakness or energy deficiency? Mol Genet Metab. 2013 May;109(1):14-20. doi: 10.1016/j.ymgme.2013.02.008. Epub 2013 Feb 19. — View Citation

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* Note: There are 16 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Respiratory exchange ratio, RER	VO2/VCO2	measured continously during the exercise test day 2 and 4.
Other	p-glucose	Analysis of blood sample	measured at rest and max on day 1, and before first dose of soft drink, before exercise and every 10 minutes during exercise at day 2 and 4.
Other	Pain	Pain assessed on a visual analog scale (VAS) with a scale of 0 to 10 cm	Assessed on days 3 and 5 of the trial
Other	Fatigue	Fatigue Severity Score (FSS)	Assessed on days 3 and 5 of the trial
Other	p-Creatine kinase	To asses muscle damage	measured on day 1, 3 and 5.
Other	p-myoglobin	To asses muscle damage	measured on day 1, 3 and 5.
Other	p-ammonia	Analysis of blood sample	measured at rest and max on day 1, and before exercise, at 10 minutes, 20 min of exercise and at max on day 2 and 4.
Other	p-insulin	analysis of blood sample	measured at rest and max on day 1 and before exercise and every 10 minutes during exercise at day 2 and 4.
Other	p-glucagon	analysis of blood sample	measured at rest and max on day 1, and before exercise, at 10 minutes, 20 min of exercise and at max on day 2 and 4.
Other	p-catecholamines	analysis of blood sample	measured at rest and max on day 1, and before exercise, at 10 minutes, 20 min of exercise and at max on day 2 and 4.
Other	Hypoglycemic episodes	Clinical observation as well as blood glucose levels monitored during exercise tests	2 hour observation after each of the two exercise test.
Primary	maximal work capacity	Area Under the Curve (AUC) = resistance times duration of workout	After up to 1 hour of bicycling on the 2nd and 4th day.
Secondary	Peak oxygen consumption	(VO2peak)	After up to 1 hour of cycling on the 2nd and 4th day.
Secondary	Peak workload	(Wpeak)	After up to 1 hour of cycling on the 2nd and 4th day.
Secondary	Peak respiratory exchange ratio	(RER)	After up to 1 hour of cycling on the 2nd and 4th day.
Secondary	p-lactate	Analysis of blood sample	measured at rest and max on day 1, and before first dose of soft drink, before exercise and every 10 minutes during exercise at day 2 and 4.
Secondary	Heart rate	pulsemonitoring	Continously during the cycle test (max. 1 hour) on the 2nd and 4th day
Secondary	Borg score	Rate of percieved exertion	Measured periodically during the cycle test (max. 1 hour) on the 2nd and 4th day

External Links

•   Scientific Committee on Food. Re-evaluation of acesulfame K with reference to the previous SCF opinion of 1991.