An Ambispective 24-Month Longitudinal Natural History Study in Myotonic Dystrophy Patients Using DM-Scope Registry (TRACK-DM Study)
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- Lupin Ltd.
- 入组人数
- 100
- 试验地点
- 6
- 主要终点
- Change in stiffness severity assessed by Visual Analog Scale (VAS)
研究概览
简要总结
This natural history observational study is being conducted to follow patients with DM1 or DM2 over a 2 year period to study the presence of myotonia, how it's perceived and its impact on patients quality of life. This study will be conducted at 6 study sites located in France.100 Patients will be recruited from the DM Scope Registry only. The study involves two parts. Part 1 will look back up to 18 months of past medical history that is already available from the DM Scope Registry. Part 2 will follow the same patients for 24 months, with study visits at Day 1 (Baseline), 12 months and 24 months. The goal is to better understand how myotonia symptoms and complications such as heart and other systemic problems develop and change over time. A smaller, sub-study will take place at one site, using new exploratory methods in about 40 patients with DM1 who are also part of the Track DM Study.
详细描述
The rationale of the study is to gather longitudinal data on patients with DM1 and DM2 in order to better understand disease progression and evolution of myotonia and other symptoms and their associated complications/risks, particularly in relation to cardiac and other systemic manifestations. The primary objective is to investigate the evolution of myotonia presence, perception and its impact on the burden of disease over time in patients with Myotonic dystrophy type 1 (DM1) and type 2 (DM2). The secondary objective is to evaluate the progression of other DM-related multisystemic symptom manifestation such as cardiac, pulmonary, gastrointestinal (GI), hepatic, and renal impairments/disorders, muscle weakness, stumbling and falls in DM patients over 24-months. Additionally, the study will assess the use of pharmacological and non-pharmacological treatments for myotonia during the data collection period.
All of the patients will be recruited through the DM-Scope Registry. The registry database will be the source of the retrospective data to be used in the study. The study will begin with a detailed retrospective medical history assessment (up to -18 months to baseline) based on the annual routine DM-scope visits in the database. This will provide a comprehensive view of the patients' health status before the study. The 24-month prospective assessment period visits will occur at baseline, 12 months and 24 months. This approach allows for detailed tracking of disease progression and associated complications/risks over time.
The exploratory sub-study aims to broaden the understanding of DM1 pathophysiology by incorporating biophysical, functional, and behavioral measurements beyond traditional motor function and muscle strength. It also aims to evaluate the reliability of several innovative assessments, including advanced tools to deliver a multidimensional view of disease progression.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Other
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Enrolled in DM-scope registry genetically diagnosed with DM1 or DM
- •Affiliation or beneficiary of a social security system or of such a regime.
- •Ability to comprehend and willingness to sign an informed consent (ICF).
- •Male or non-pregnant female ≥18 years of age at screening.
- •Body Mass Index (BMI) of 18.5 kg/m2 to 30 kg/m2, and weight ≥45 kg.
- •Medical history data covering up to 18 months prior to enrollment.
- •Clinical sign of myotonia
- •DM1 patients only - Muscular impairment rating scale (MIRS) score of 2, 3 or
- •Be able to walk independently 10 meters (cane, walker, orthoses allowed).
排除标准
- •No informed consent.
- •Pregnant or lactating women.
- •Subjects benefiting from laws aimed at protecting vulnerable adults: subjects being deprived of liberty by judicial or administrative decision, subjects under guardianship /curatorship.
- •Any medical condition or serious medical illness which in the opinion of the Investigator, precludes the participant's participation in the study or the participant is unlikely to comply with the protocol-defined procedures and therefore is unlikely to complete the study.
- •Medical conditions that could affect hand functioning including (but not limited to) rheumatoid arthritis, Dupuytren's contracture, hand deformity, severe arthritis or any other medical condition (other than DM1/DM2) that would significantly impact ambulation.
- •Patients with no documented record of myotonia assessment in the clinical records of the DM-scope database or myotonia absence at last visit prior to study enrolment.
- •Not able to perform study specific performance tests and evaluations e.g. hand grip dynamometry, 10mWT, etc. (in the opinion of the investigator).
- •Treatment with mexiletine within 18 months prior to baseline (Day 1).
结局指标
主要结局
Change in stiffness severity assessed by Visual Analog Scale (VAS)
时间窗: Baseline to Month 24
Absolute change in VAS stiffness score (0-100mm) between Baseline and Month 12
Change in myotonia severity assessed by the Myotonia Behavior Scale (MBS)
时间窗: Baseline to Month 24
Absolute change in MBS score (1-6) between Baseline and Month 24.
Change in disease-related activity and participation assessed by DM1-Activ
时间窗: Baseline to Month 24
Absolute change in DM1-Activ score (0-100) between Baseline and Month 24.
Change in health-related quality of life assessed by the Individualized Neuromuscular Quality of Life Questionnaire (INQoL)
时间窗: Baseline to Month 24
Absolute change in INQoL: symptom subscores, life-domain subscores, overall total score, and treatment impact score (0-4 Likert) between Baseline and Month 24.
Change in walking performance assessed by the 10-Meter Walk Test (10mWT)
时间窗: Baseline to Month 24
Absolute change in 10mWT (sec) performance between Baseline and Month 24.
Change in mobility and functional performance assessed by the Timed Up and Go Test (TUG)
时间窗: Baseline to Month 24
Absolute change in TUG performance (sec) between Baseline and Month 24.
次要结局
- Change in cardiac function(Baseline and all scheduled study timepoints, including retrospective assessments up to 18 months before enrollment.)
- Progression of opthalmologic manifestations(Scheduled study timepoints, including retrospective assessments up to 18 months before enrollment.)
- Change in respiratory function(Baseline and all scheduled study timepoints, including retrospective data up to 18 months.)
- Change in Physical Examination Findings(Baseline and all scheduled study timepoints.)
- Safety and Tolerability(Throughout study participation.)
- Change in Gastrointestinal (GI) manifestations(Baseline and all scheduled study timepoints, including retrospective assessments up to 18 months before enrollment.)
- Change in muscle-related manifestations(Baseline and all scheduled study timepoints.)
- Change in mobility and functional performance(Baseline and all scheduled study timepoints)
- Change in Quality of Life(Baseline and all scheduled study timepoints.)
- Clinical Global Impression of disease severity and change(Baseline and all scheduled study timepoints)