Active clinical trials for "Dementia"

Patients with different types of dementia will be recruited and evaluated in national hospital departments for their usual neurological follow-ups. A blood sample will be proposed in the field of this research project, and the biological material will be stored at the DNA and Cell Bank of Institut de Fédératif Recherche (IFR) of Neurosciences (Pitié-Salpêtrière Hospital, Paris). The clinical research network is already set up for Alzheimer's disease and frontotemporal dementias, which permits an evaluation according to a clinical standardized protocol. Among these disorders, a monogenic sub-group has been identified. In Alzheimer's disease, it is associated with the APP, PSEN1 and PSEN2 genes, which account only for 75% of the familial forms with early onset. In frontotemporal dementias, the tau gene mutations account only for 10% of the cases with an autosomal dominant inheritance. The identification of familial forms with a genetic inquiry in the relatives is essential for a greater knowledge of the molecular bases of forms not caused by the known genes, using linkage approaches and candidate gene analysis. The familial forms are also useful for identifying the modifier genes. In the multifactorial forms, the aim is to assemble a wide cohort of patients and controls matched for localizing and identifying susceptibility genetic factors. The strategies will use a candidate gene approach, and in the near future, studies of single nucleotide polymorphisms (SNPs) spread out in the whole genome. Meanwhile, similar approaches, particularly with candidate genes, could be used for identifying predictive factors of tolerance and response to the treatment. Finally, correlations will be performed with seric markers according to each kind of dementia. Specialized clinical teams in diagnosis and follow-up in dementias are assembled for this project, and in the study of neurological disorders of genetic origin.

This is a 5-year observational study recruiting sixteen hundred and fifty individuals between the ages of 50 and 90 with different types of dementia as well as a comparison group of six hundred and fifty aged matched individuals without cognitive deficits. Participants will be recruited at sites across Canada and will undergo assessments and provide biological samples at baseline and two years after baseline.

The goal of this study is to characterize biophysiolgoical signals as a comprehensive profile of the nervous systems in order to understand interactions between the brain and body, while an individual performs naturalistic behaviors (ex. walking, pointing) and while breathing at a slow controlled pace. The investigators aim to study these interactions among a variety of populations, from healthy individuals to those with disorders such as Autism Spectrum Disorder(s), including those who may also have an ADHD (Attention-deficit/hyperactivity disorder) diagnosis, Asperger's Syndrome, Alzheimer's Disease, and/or Fragile X syndrome

This is a qualitative study to explore opinions of family caregivers of community-dwelling people with dementia on case manager approach in dementia care. Semi-structured interviews will be used for data collection. Purposive sampling was used to recruit caregivers from Jockey Club Centre for Positive Ageing. Grounded Theory would be used for data analysis.

The trajectory of dementia patients within the national health system and their recent temporal trends remains to be fully elucidated. To study the dementia incidence, mortality and case-fatality, we implemented a longitudinal cohort study with the linked electronic health records of 5.6 million population in the UK from 1998 to 2016 (CALIBER). A matched case-control study design was used to investigate the causes of hospitalization and death comparing individuals with and without incident dementia.

To establish diagnostic tools to make an accurate clinical and pathological diagnosis of patients with clinical FTLD syndromes

The HKU Neurocognitive Disorder (NCD) Cohort is a hospital-based, prospective, observational study of older HK Chinese adults with cognitive impairment, with a special focus on studying patients with subjective cognitive decline and mild cognitive impairment.

The white matter change of the Alzheimer's disease could be studied by diffusion tensor image and MR spectroscopy to see the microstructral and biochemical change.