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Mutations and Phenotypes of Unclassifiable Inherited Bone Marrow Failure Syndromes

Identification of The Novel Mutations and A Comprehensive Analysis of The Phenotype and Genetic Etiology Underlying Unclassifiable Inherited Bone Marrow Failure Syndromes With Bone Fragility Fractures

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05436587
Enrollment
250
Registered
2022-06-29
Start date
2022-01-10
Completion date
2028-01-31
Last updated
2022-07-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Inherited BMF Syndrome

Brief summary

Inherited bone marrow failure syndromes (IBMFSs) are a diverse collection of genetic illnesses characterized by various degrees of peripheral cytopenias due to defective single-lineage or multi-lineage hematopoiesis, it can manifest itself at birth or later in life.

Detailed description

Studying the genetic etiology underlying unclassifiable IBMFSs with bone fragility fractures should be useful for clarifying the undiagnosed pathophysiological mechanisms and other accessory factors to improve the diagnosis, follow-up, prognosis, and management of these patients as well as prevent future complications. Moreover, early diagnosis of risk factors of unusual presentations of IBMFSs will be a useful tool for better treatment strategy. In addition, along with typical IBMFSs, novel clinical entities must be included in an overall molecular portrait of IBMF disorders. As a result, comprehensive genetic analysis will be effective in establishing an accurate genetic diagnosis at medical evaluation.

Interventions

GENETICThe whole-exome sequencing

Exome sequencing will be performed at the Division of Hematopoietic Disease Control, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan and will be analyzed at Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Japan.

Sponsors

Kyoto University
CollaboratorOTHER
Assiut University
CollaboratorOTHER
Sohag University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Confirmed a two-generational family with IBMFSs presented with signs and symptoms of bone fragility fractures and admitted or treated in Hematology Division at Internal Medicine Departments of various university hospitals will be screened for enrollment in this study. * The investigators will invite the entire family for testing for IBMFSs mutations, and three additional family members consented to participate in this study.

Exclusion criteria

* • Patients will be diagnosed with paroxysmal nocturnal hemoglobinuria * Patients will be diagnosed with de novo myelodysplastic syndrome * IBMFSs-patients will refuse to consent to this study. * Serologic evidence of recent virus infection as hepatitis A (HAV), HBV, HCV, HEV, cytomegalovirus (CMV), Epstein-Barr virus (EBV), or positive test for HIV. * IBMFSs patients with severe systemic diseases (such as cardiovascular, renal, and hepatic disease) or surgical/medical conditions that might interfere with follow-up instructions. * IBMFs patients with psychiatric disorders or a history of drug abuse,

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants with Progression of pancytopeniaTwo year after diagnosisProgression of pancytopenia severity
Number of Participants with Fragility FracturesTwo year after diagnosisoccurrence of the Fragility Fractures
Number of Participants with Malignancy transformationTwo year after diagnosisOccurrence of hematological or solid malignancy

Countries

Egypt

Contacts

Primary ContactMahmoud I Elbadry, PhD
mahmoudibrahem837@gmail.com+201065964083

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026