View clinical trials related to Myotonic Dystrophy Type 2.
Filter by:Nearly two-third of patients with myotonic dystrophy type 2 (DM2) report that impaired cognition is among the most disabling symptoms and deeply affects their quality of life. Yet, relatively little is known about how DM2 affects brain structure and cognitive function as brain imaging studies in DM2 are extremely limited. This is a prospective, cross-sectional study of brain structure and function on cognitive and motor performance in patients with DM2 compared to healthy controls. All participants will undergo magnetic resonance imaging (MRI) to evaluate brain structure and white matter integrity, a comprehensive battery of cognitive and motor measures, self-reported questionnaires, and blood collection for brain-based biomarker analysis. A subset of participants will undergo lumbar puncture for cerebrospinal fluid (CSF) collection for additional biomarker analysis and validation. This work is critical to inform the development of rigorous clinical trial designs and plan for a longitudinal study to evaluate MRI measures as imaging biomarkers of disease progression and therapeutic response in DM2.
The primary aim is to characterize the prevalence, severity and quality of musculoskeletal nociceptive pain in adult patients with neuromuscular disorders (NMD). The secondary objectives are to evaluate whether severity and distribution of muscle pain is associated with muscle function, and to assess whether muscle pain is associated with alterations of muscle elasticity and muscle stiffness. Results of patients with neuromuscular disorders will be compared to age- and gender-matched healthy volunteers. Approx. 70 patients with neuromuscular disorders and 20 healthy volunteers will be enrolled, including patients with the following neuromuscular disorders: histologically confirmed inclusion body myositis (IBM), genetically confirmed late-onset Pompe disease (LOPD), genetically confirmed spinal muscular atrophy type 3 (SMA3), genetically confirmed facio-scapulo-humeral muscle dystrophy (FSHD), genetically confirmed myotonic dystrophy type 1 or type 2 (DM1, DM2). The duration of patient recruitment will be around 12 months.
Background: Myotonic dystrophy is a long-term genetic disorder that affects muscle function. Symptoms include gradually worsening muscle loss and weakness. Muscles often contract and cannot relax. Researchers want to find out how various tests for DM1 or DM2 change over 2 years, to help them develop better tests for people with these diseases. Data and samples from this study will be shared with the Myotonic Dystrophy Clinical Research Network (DMCRN) investigators participating in the ongoing Establishing Biomarkers and Clinical Endpoints in Myotonic Dystrophy Type 1 (ENDDM1) study Objective: To find better ways to assess how myotonic dystrophy type 1 or type 2 affects people. Eligibility: People ages 11 70 with DM1 or DM2 Design: Participants will have 3 study visits over 2 years. Participants may be admitted to the clinic. Each visit may last up to a week and will include: Medical history and physical exam Blood, heart, and pregnancy tests Questions about their disease Breathing and muscle tests, including tests of movement, grip, and hand opening Speech and swallowing exam Magnetic resonance imaging (MRI). Participants will lie on a table that slides into a cylinder. A magnetic field and radio waves will take pictures of the body. They may do a task during the scan. They may have a dye injected. Pictures of chemicals in the brain or muscle taken in an MRI scanner Thinking and memory tests Sleep studies. Electrodes placed on the scalp will record the electrical activity of the brain. Other devices on the body will measure heartbeat, breathing, movement, and oxygen. Tests of electrical activity of muscles. Participants move their arms and legs with disks stuck on their skin. Visits may also include: Exam by a physician expert in stomach and bowel disorders A piece of muscle and/or spinal fluid removed by needle Sponsoring Institute: National Institute of Neurological Disorders and Stroke ...
A monocentric, longitudinal, observational case-control study in patients with Myotonic Dystrophy type 2 (DM2). At least 60 DM2 will be evaluated through a battery of patients reported Outcomes (PROs) and clinical Outcome Measures (OMs), in order to define suitable OMs for DM2 and propose a disease specific severity scale. Patients will be re-evaluated after 6 months. An age and gender-matched control cohort will be assessed.
The aim of this study is to quantify muscle relaxation properties of the finger flexor muscles in patients with different myopathies. The inhibiting effects of transcranial magnetic stimulation (TMS) on the cortical motor hand area are used to induce relaxation, which in turn will be monitored with handgrip dynamometry and EMG. The investigators will evaluate if this technique can be implemented as a diagnostic tool in clinical practice. Muscle relaxation is an often overlooked property of the muscle as compared to muscle strength or activation. Muscle relaxation is affected in different myopathies, such as myotonic dystrophy, non-dystrophic myotonias, and Brody myopathy. Therefore, a diagnostic tool to quantify muscle relaxation is of clinical and scientific importance. In this study, transcranial magnetic stimulation (TMS) is used, in combination with a dynamometer to quantify muscle relaxation properties. Transcranial magnetic stimulation (TMS) is a non-invasive technique that is commonly used to stimulate the brain. In practice, a circular coil is held directly above the scalp, upon which a strong current pulse induces a magnetic field that stimulates the underlying superficial brain areas. This stimulation can have both activating and inhibiting effects. When the motor cortex (i.e. the area of the brain that controls muscle contractions) is strongly stimulated with TMS during a voluntary muscle contraction, both excitatory and inhibitory effects can be observed in the muscle the targeted cortical area controls. The inhibitory effect entails a transient interruption of neural drive to the muscle. This interruption, called the "silent period", lasts for less than half a second and results in the relaxation of the muscle. Muscle activity and control quickly return to normal after the silent period. The elegance and main advantage of TMS-induced muscle relaxation lies in the fact that it excludes all voluntary influences on the relaxation process. Furthermore, the TMS pulse causes all muscle fibres involved in the contraction just prior to the onset of the silent period to relax simultaneously. This allows us to study muscle relaxation as only a property of the muscle, i.e. without voluntary influences. In this study, the investigators will measure muscle relaxation in several myopathies (McArdle disease, Nemaline myopathy type 6 and myotonic dystrophy type 2) and compare this to healthy controls and to controls with no myopathy but with similar complaints (myalgia, stiffness, cramps). The data from these two control groups has been gathered previously in a different study. The investigators will also compare this to patients suffering from Brody disease who were previously measured in a different study. Muscle relaxation will be evaluated in fresh and fatigued finger flexor muscles. The main outcome of this study is the peak relaxation rate normalized to the peak force preceding relaxation. The final outlook of this research is to evaluate whether muscle relaxation studied with TMS, can be used for different myopathies as a diagnostic tool, to monitor disease progression, and to study the effects of different interventions (e.g. medication, exercise).
Myotonic dystrophy (DM) and facioscapulohumeral muscular dystrophy (FSHD) are inherited disorders characterized by progressive muscle weakness and loss of muscle tissue. The purpose of this registry is to connect people with DM or FSHD with researchers studying these diseases. The registry will offer individuals with DM and FSHD an opportunity to participate in research that focuses of their diseases. The registry will also help scientists to accomplish research on DM and FSHD and to distribute their findings to patients and care providers.