An observational study in Blastic Plasmacytoid Dendritic Cell Neoplasm (BPDCN), sponsored by Immune Oncology Research Institute. Recruiting at 22 sites in 15 countries. Per ClinicalTrials.gov, last updated 2026-06-05.
Sponsored by Immune Oncology Research Institute · Observational
Blastic Plasmacytoid Dendritic Cell Neoplasm (BPDCN) is a very rare hematologic malignancy. Despite recent advances, at present there is no consensus on the optimal treatment of BPDCN. The optimal therapy of disease remains to be determined, and due to the rarity of cases, there is a need for international collaboration to collect data on BPDCN clinical presentations, diagnostics, treatment regimens and outcomes. Therefore, the objectives of this study are: (1) to build a large database of patients with BPDCN, (2) to investigate the characteristics and outcome of the disease with different treatment regimens, (3) to evaluate prognostic factors, and (4) to generate data-based prospective treatment recommendations.
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematologic malignancy. In 2008, it was recognized by the WHO as a distinct entity and separately listed in the group of acute myeloid leukemias and related precursor neoplasms.
The final diagnosis of BPDCN relies on a compatible immunophenotype. The triple positive CD4+CD56+CD123+ phenotype associated with negativity for lineage-specific markers is a minimum requirement for defining BPDCN. The highly specific marker BDCA2/CD303, as well as other plasmacytoid dendritic cell-associated antigens (e.g. TCL1 and CD2AP), might be of great support to exclude potential mimickers of BPDCN (acute myeloid and monocytic leukemias, precursor lymphoblastic T-cell leukemia/lymphomas and T- and NK/T cell lymphomas.
At present, there is no consensus on the optimal treatment of BPDCN. The majority of patients receive multi-agent chemotherapy with AML or ALL treatment regimens, while a few patients undergo allogeneic haematopoietic stem cell transplantation (HSCT). In recent years, different novel and innovative therapies are in development to target surface molecules in BPDCN. The patients are still in need of better treatments and the optimal therapy of disease remains to be determined.
This is a multicenter, international prospective and retrospective registry with the aim of collecting data of patients with a diagnosis of BPDCN globally.
Patients will be recruited directly by the national study groups / participating centers.
Participating centers will collect and verify informed consent of all prospective patients enrolled at their center.
The following data will be collected through questionnaires:
Quality control and data management will be conducted by the Immune Oncology Research Institute.
45 studies on the registry are indexed under Blastic Plasmacytoid Dendritic Cell Neoplasm; 15 are open to participants now.
Browse Blastic Plasmacytoid Dendritic Cell Neoplasm studies →Immune Oncology Research Institute is the lead sponsor of 6 studies on the registry; 4 are open to participants now.
Counted across the registry records on this site, refreshed daily.
All patients with BPDCN diagnosed since 01.01.2010
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
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Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Overall survival
Time from diagnosis to death
Time frame: 5 years
Complete remission rate
The proportion of patients with complete remission
Time frame: 5 years
Mean duration of the first remission
Time from first remission to disease progression or death
Time frame: 5 years
Event-free survival
Time from diagnosis to occurrence of a complication
Time frame: 5 years
Plan to share: Undecided
No publications or documents are linked to this record.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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Blastic Plasmacytoid Dendritic Cell Neoplasm →
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