Background: Rare diseases are estimated to affect 150-350 million people worldwide. With advances in next generation sequencing, the number of known disease-causing genes has increased significantly, opening the door for therapy development. Rare disease research has therefore pivoted from gene discovery to the exploration of potential therapies. With impending clinical trials on the horizon, researchers are in urgent need of natural history studies to help them identify surrogate markers, validate outcome measures, define historical control patients, and design therapeutic trials.
Results: We customized a browser-accessible multi-modal (e.g. genetics, imaging, behavioral, patient-determined outcomes) database to increase cohort sizes, identify surrogate markers, and foster international collaborations. Ninety data entry forms were developed including family, perinatal, developmental history, clinical examinations, diagnostic investigations, neurological evaluations (i.e. spasticity, dystonia, ataxia, etc.), disability measures, parental stress, and quality of life. A customizable clinical letter generator was created to assist in continuity of patient care.
Conclusions: Small cohorts and underpowered studies are a major challenge for rare disease research. This online, rare disease database will be accessible from all over the world, making it easier to share and disseminate data. We have outlined the methodology to become Title 21 Code of Federal Regulations Part 11 Compliant, which is a requirement to use electronic records as historical controls in clinical trials in the United States. Food and Drug Administration compliant databases will be life-changing for patients and families when historical control data is used for emerging clinical trials. Future work will leverage these tools to delineate the natural history of several rare diseases and we are confident that this database will be used on a larger scale to improve care for patients affected with rare diseases.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8299589 | PMC |
http://dx.doi.org/10.1186/s13023-021-01953-8 | DOI Listing |
Alzheimers Dement
December 2024
GSK R&D, Stevenage, Hertfordshire, United Kingdom.
Background: Genetic variants in GRN, the gene encoding progranulin, are causal for or are associated with the risk of multiple neurodegenerative diseases. Modulating progranulin has been considered as a therapeutic strategy for neurodegenerative diseases including Frontotemporal Dementia (FTD) and Alzheimer's Disease (AD). Here, we integrated genetics with proteomic data to determine the causal human evidence for the therapeutic benefit of modulating progranulin in AD.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Biomedical Engineering, McGill University, Montreal, QC, Canada.
Background: Randomized placebo-controlled trials (RCTs) are the gold standard to evaluate efficacy of new drug treatments for Alzheimer's disease. For example, the United States FDA approved the brain amyloid-targeting drug lecanemab following CLARITY AD, Biogen and Eisai's Phase 3 RCT. However, recruiting enough participants for a high-powered and demographically representative trial is difficult and expensive.
View Article and Find Full Text PDFBackground: Homozygosity for the rare APOE3-Christchurch (APOE3Ch) variant, encoding for apoE3-R136S (apoE3-Ch), was linked to resistance against an aggressive form of familial Alzheimer's disease (AD). Carrying two copies of APOE3Ch was sufficient to delay autosomal AD onset by 30 years. This remarkable protective effect makes it a strong candidate for uncovering new therapies against AD.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
VA Boston Healthcare System, Jamaica Plain, MA, USA.
Background: Mixed dementia type - Alzheimer's Disease (AD), cerebral amyloid angiopathy (CAA), and vascular - is vastly recognized as a cause of dementia in older adults. Whereas CAA, primarily leptomeningeal, is a frequent complication in hereditary transthyretin cardiac amyloidosis (TTRCA), it is unusually reported in association with wild-type TTR, with or without polyneuropathy. The knowledge of mixed dementia and wild-type TTR association is even scarcer.
View Article and Find Full Text PDFAnn Med
December 2025
Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Clinical trials are crucial to contemporary medicine, offering valuable insights into the safety, efficacy, and appropriate use of new treatments. They contribute to public health improvements, reduce healthcare costs, uncover new understandings of disease biology, and facilitate the development of therapies for rare conditions. Investing in clinical trials is therefore essential for advancing medical science and enhancing patient outcomes globally.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!