Cori Forbe's Disease Also called: glycogen storage disease Type III or debrancher deficiency. Tarui's disease Also called: glycogen storage disease Type VII or phosphofructokinase deficiency. Glycogenin-1 deficiency or glycogen storage disease Type XV. MedDRA version: 20.1 Level: PT Classification code 10053241 Term: Glycogen storage disease type VII System Organ Class: 10010331 - Congenital, familial and genetic disorders MedDRA version: 20.1 Level: PT Classification code 10053250 Term:
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Male/Female Age > 15 years - Genetically and/or biochemically verified diagnosis of GSD III, GSD VII or GSD XV - Capacity to consent - For women in fertile age on contraceptive treatment with: Birth control pills, coil, ring, transdermal hormone patch injection of gestagen or subdermal implant. Are the trial subjects under 18? yes Number of subjects for this age range: 4 F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 14 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 2
Exclusion criteria
Exclusion criteria: - Significant cardiac or pulmonary disease - Pregnancy (confirmed by urine stix or plasma-HCG) or breastfeeding. - Inability to perform cycling exercise - Any other significant disorder that may confound the interpretation of the findings
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): • Self-reported health and well-being addressed in an SF-36 Questionnaire. • Maximal workload capacity (Wmax). • Plasma concentrations of lactate, ammonia, glucose, FFA, acyl-carnitines and malate (a TCA intermediate), creatine kinase, and hormones. • Rate of Perceived Exertion during constant workload cycling (RPEconst). • Total fatty acid oxidation and total carbohydrate oxidation measured by indirect calorimetry. • Glucose rate of appearance and disappearance. ;Timepoint(s) of evaluation of this end point: Before and after 14 days of treatment with Triheptanoin and before and after 14 days of placebo treatment. | — |
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To investigate the effect of Triheptanoin on fatty acid oxidation and exercise tolerance in patients with debrancher deficiency, glycogenin-1 deficiency and phosphofructokinase deficiency at rest and during exercise. ;Secondary Objective: To investigate the effect of Triheptanoin treatment on: * Self-rated daily function scores on a modified SF-36 questionnaire * Maximal workload capacity (Wmax). * Changes in plasma concentrations of lactate, ammonia, glucose, FFA, acyl-carnitines, malate (a TCA intermediate), C5, and hormones. * Rate of Perceived Exertion (Borg score) during constant workload cycling. * Maximal oxidative capacity. * Bouchards energy expenditure questionnaire. * Glucose rate of appearance and disappearance. ;Primary end point(s): - Heart rate during constant load cycling exercise (HR_const) - Fatty acid oxidation (FAO);Timepoint(s) of evaluation of this end point: Before and after 14 days of treatment with Triheptanoin and before and after 14 days of placebo treatment. | — |
Countries
Denmark
Contacts
Rigshospitalet