Molecular Basis of Langerhans and Non-Langerhans Cell Histiocytic Neoplasms and Castleman Disease
The purpose of this study is to use agnostic genomic evaluation using whole exome sequencing (WES) of a variety of rare hematologic diseases grouped under rare blood diseases and its variants to further elucidate the understanding of the chemistry of these disorders and identify potential actionable mutations that can be targeted with therapies in the context of clinical trials.
Checked against the public recordLast updated Aug 6, 2026 · Source: ClinicalTrials.gov
What this study is about
- Purpose
- Screening
- Study type
- Interventional
- Phase
- Not applicable
- Sponsor
- Case Comprehensive Cancer Center
- Interventions being studied
- Diagnostic Test: Genetic testing
How this study is categorized
These labels come from structured fields and exact terms in the public record.
Who may be able to participate
Inclusion Criteria: * Must have histopathologic confirmation of the particular rare hematologic disease. * Diseases that will be considered as rare hematologic diseases for this study will include the following * Langerhans cell histiocytosis (LCH) * Erdhiem Chester disease (ECD) * Rosai-Dorfman disease (RDD) * Miscellaneous histiocytic entities -indeterminate dendritic cell tumor, interdigitating dendritic cell sarcoma, follicular dendritic cell sarcoma, fibroblastic reticular cell tumor * Unicentric Castleman disease * Multicentric Castleman disease including TAFRO * Follicular Dendritic Cell sarcoma (FDCS) * Newly diagnosed treatment naïve patients as well as patients who received prior therapies (e.g. chemotherapy, targeted therapy, surgery, or radiation) will be included. -Tissue specimens collected within the past 5 yearse will be considered acceptable for study inclusion will include the following * Collected as part of the evaluation for diagnostic confirmation * Tissue specimen or extracted DNA (from blood sample) banked in IRB approved tissue repositories and obtained within five years prior to the date of informed consent. -Tissue samples are planned to be collectedfrom previously stored surgical specimens already being stored in pathology lab * Consent to have germline testing performed in parallel to tumor testingg)Patients willing to receive treatmen Exclusion Criteria: * Life expectancy of less than 6months * Patient unwilling to have germline testing performed on peripheral blood or buccal mucosa
Important: This is the sponsor’s public criteria, not a determination of eligibility. The study team must review your individual situation.
U.S. locations
- Cleveland Clinic, Case Comprehensive Cancer CenterCleveland, Ohio
Source and freshness
Processed from ClinicalTrials.gov. Last public update: Aug 6, 2026. Always confirm current availability with the study team.