Epidemiologic Study of Persistent Polyclonal B-cell Lymphocytosis (PPBL)

Central Hospital, Nancy, France100 enrolled

Overview

The main purpose of this study is the description of all French cases of PPBL and the establishment of minimal criteria for the pathology diagnosis and its follow-up. The secondary objective is the immunologic and genetic characterization of lymphoid cells causing the disease.

Study Type

OBSERVATIONAL

Enrollment

100

Conditions

Persistent Polyclonal B-Cell Lymphocytosis

Interventions

Blood testBIOLOGICAL

30 ml

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * PPBL diagnosis established during a previous medical visit Exclusion Criteria: * None

Locations (2)

group GFHC and intergroup LLC (GCFLL-MW / GOELAMS)

Marseille, France

CHRU de Nancy - Hopitaux de Brabois

Vandœuvre-lès-Nancy, France

Outcomes

Primary Outcomes

Relevant medical history

Time frame: Baseline

Complete blood count

Time frame: Baseline

Administration of first-line treatment or not

Time frame: Baseline

Secondary Outcomes

Lymphocyte phenotype

Time frame: Baseline

Data from ClinicalTrials.gov

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