The Distribution of Immunoglobulin Isotype in Polyclonal Hypergammaglobulinemia in Systemic and Autoimmune Diseases
Trial Snapshot
- Phase
- Not Applicable
- Status
- Recruiting
- Enrollment
- 150
- Locations
- 1
- Primary Endpoint
- distribution of immunoglobulin isotypes
Study Overview
Brief Summary
Polyclonal hypergammaglobulinaemia is characterized by increased levels of immunoglobulins and is a common feature observed in various diseases such as autoimmune diseases, chronic infectious diseases or lymphoid hemopathy. Some autoimmune diseases such as systemic lupus erythematosus, rheumatoid arthritis or Sjögren's syndrome are frequently associated with polyclonal hypergammaglobulinaemia. Recent data have suggested that the distribution of immunoglobulin isotypes in polyclonal hypergammaglobulinaemia may be disease-specific. However, isotype repartition in polyclonal hypergammaglobulinaemia remains poorly understood.
The investigators will investigate the distribution of immunoglobulin isotype in patients with autoimmune disease and polyclonal hypergammaglobulinaemia. Moreover, the investigators will evaluate the isotype repartition as predictor of lymphoma or monoclonal gammopathy among patients with autoimmune diseases.
Study Design
- Study Type
- Observational
- Observational Model
- Case Only
- Time Perspective
- Retrospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •All adult patients > 18 years old
- •patients with one of the following diseases: systemic lupus erythematosus, rheumatoid arthritis, Sjögren's syndrome, autoimmune hepatitis, sarcoidosis or lymphoma.
Exclusion Criteria
- •Age < 18 years;
- •chronic viral hepatitis;
- •HIV infection, syphilis,
- •tuberculosis
Outcomes
Primary Outcomes
distribution of immunoglobulin isotypes
Time Frame: one day
distribution of immunoglobulin isotypes in polyclonal hypergammaglobulinaemia associated with autoimmune and systemic diseases (systemic lupus erythematosus, rheumatoid arthritis, Gougerot-Sjögren syndrome, sarcoidosis)
Secondary Outcomes
No secondary outcomes reported