Genetic Study of Unclassifiable Inherited Bone Marrow Failure Syndromes With Bone Fragility Fractures

What this Trial Is About

Inherited bone marrow failure syndromes IBMFSs are a group of genetic disorders that cause problems with blood cell production, leading to low blood counts. These syndromes can appear at birth or later in life and sometimes involve bone fragility fractures. This research aims to better understand the genetic causes and characteristics of unclassifiable IBMFSs, especially those with bone fragility, to improve diagnosis, treatment, and management of patients and help prevent future complications. The study involves comprehensive genetic testing using whole-exome sequencing to identify mutations linked to IBMFSs. This testing will be performed at specialized institutions in Japan and analyzed for detailed genetic information. The study will include families with at least two generations affected by IBMFSs and bone fragility fractures, inviting multiple family members to participate in genetic testing. Participants will undergo genetic analysis and clinical evaluations to track disease progression, occurrence of fragility fractures, and potential transformation to malignancy over two years. Researchers will monitor these outcomes to better understand the disease course. The study is observational, with no experimental treatment, and participation may involve follow-up visits and data collection over time to gather comprehensive information about the condition.

Mutations and Phenotypes of Unclassifiable Inherited Bone Marrow Failure Syndromes