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Myotonic Dystrophy, PrOteiN and Diet study


- candidate number29718
- NTR NumberNTR7582
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR23-okt-2018
- Secondary IDsMETC182009 
- Public TitleMyotonic Dystrophy, PrOteiN and Diet study
- Scientific TitleMyotonic Dystrophy, PrOteiN and Diet study (MD-POuND). Part 1.
- ACRONYMMD-POuND
- hypothesisWe hypothesize that DM1 is accompanied by impairments in whole-body and/or muscle metabolism.
- Healt Condition(s) or Problem(s) studiedMetabolism, Neuromuscular diseases, Protein, Diet, Myotonic dystrophy type 1
- Inclusion criteria- Age 18 years or older.
- Legally competent adult.
- Defined DM1 of the adult subtype.
- Participants must be able to walk and to cycle (in order to perform exercise tests).
- Participants must give informed consent by signing and dating an informed consent form.
- Exclusion criteria- Implantation of pacemaker or ICD device, a implantable insulin device, a neurostimulator, internal hearing aid or artificial heart valve.
- Implantation of orthopaedic prostheses, screws or plates.
- Metal shreds or splinters inside the body.
- Vascular clips in the body.
- Big tattoo’s and/or permanent make-up.
- Claustrophobia.
- Use of medication interacting with muscle metabolism (such as steroids and statins).
- Diabetes mellitus.
- Weight loss of more than 3 kg in the last three months.
- Pregnant or lactating women.
- Use of protein supplements.
- Participation in an exercise program (for a study).
- Patients who are not able to perform basic activities of daily living such as walking, or patients who are suffering from other disabling comorbidity that seriously hamper physical exercise (e.g. heart failure, coronary artery disease, chronic obstructive pulmonary disease (COPD), orthopedic conditions).
- Body mass index (BMI) <18,5 or >35 kg/m2.
- Use of oral anticoagulants.
- In case of DM1 affected subjects: muscular impairment rating scale (MIRS) score of 5 (which represents severe proximal muscle weakness).
- In case of the healthy control group:
presence of a neuromuscular disorder or an abnormal neurological examination (specifically if muscle weakness is present), or other condition possibly interfering with muscle strength or muscle mass
- mec approval receivedyes
- multicenter trialno
- randomisedno
- group[default]
- Type[default]
- Studytypeobservational
- planned startdate 1-jun-2018
- planned closingdate1-dec-2020
- Target number of participants0
- Interventionsnone
- Primary outcomeThe main study endpoints are:
- total energy expenditure measured by DLW and respiration chamber;
- resting metabolic rate (RMR) measured by respiration chamber;
- substrate selection at rest measured by respiration chamber.
- Secondary outcomeSecondary endpoints include:
- Physical activity level (PAL) measured by accelerometer;
- Whole-body skeletal muscle mass measured by MRI;
- Quadriceps muscle cross-sectional area measured by CT;
- Maximal grip strength measured by dynamometer;
- Body composition expressed as leg and whole-body lean tissue mass measured by DEXA;
- Muscle tissue morphology (including fibre size, split fibres, location of nucleii, regenerating and degenerating fibres, connective tissue, inflammatory cells, inclusions and storage material), muscle fibre differentiation, muscle fibre type specific cross-sectional area and vascularization, all determined by microscopically performed histological muscle biopsy assessment;
- Muscle fiber biochemical analysis: cytochrome C oxidase enzym activity;
- Maximal oxygen uptake capacity (VO2 max) and aerobic and anaerobic ventilatory thresholds determined by cycling exercise test;
- Timepointstotal duration of 2 years
- Trial web site
- status[default]
- CONTACT FOR PUBLIC QUERIESDrs. IBT Joosten
- CONTACT for SCIENTIFIC QUERIESDrs. IBT Joosten
- Sponsor/Initiator Academisch Ziekenhuis Maastricht (azM)
- Funding
(Source(s) of Monetary or Material Support)
Prinses Beatrix Fonds
- Publications
- Brief summaryMyotonic dystrophy type 1 ( DM1) is an autosomal dominant disorder that affects the skeletal, cardiac, and smooth musculature and many other tissues. While muscle weakness and myotonia (inability to relax muscles) are the main characteristics of disease, patients with DM1 frequently experience marked loss of muscle, as well as issues regarding nutrition and weight. This prospective study aims to assess metabolism in 15 patients with DM1, taking into account muscle mass, and compared to 15 healthy age-, BMI- and gender-matched subjects. We hypothesize that DM1 is accompanied by impairments in whole-body and/or muscle metabolism.
- Main changes (audit trail)
- RECORD23-okt-2018 - 7-nov-2018


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