Trials / Completed
CompletedNCT00004305
Study of Genetic Anomalies of Complement Related Proteins in Patients With IgA Glomerulonephritis
- Status
- Completed
- Phase
- —
- Study type
- Observational
- Enrollment
- 105 (planned)
- Sponsor
- National Center for Research Resources (NCRR) · NIH
- Sex
- All
- Age
- 0 Years
- Healthy volunteers
- Not accepted
Summary
OBJECTIVES: I. Determine whether allelic differences associated with the fourth component of complement, type-1 complement receptor expressed on erythrocytes, and Fc receptor FcgRIII contribute to the pathogenesis of IgA glomerulonephritis (IgA-N). II. Compare genetic anomalies of these key components in immune complex processing and clearance between juvenile vs adult onset IgA-N vs normal controls.
Detailed description
PROTOCOL OUTLINE: Participants undergo qualitative genetic analysis of complement-related proteins. Studies include: genomic re-arrangement of 4-gene unit, C4 DNA sequence and RNA expression, type-1 complement receptor DNA sequence, Fc-gamma receptor IIIA isoform analysis, classical and alternative complement activation pathway assays, plasma C4 and C4d protein levels, and immunoglobulin patterns in glomerular deposits.
Conditions
Timeline
- Start date
- 1998-01-01
- First posted
- 1999-10-19
- Last updated
- 2005-06-24
Locations
1 site across 1 country: United States
Source: ClinicalTrials.gov record NCT00004305. Inclusion in this directory is not an endorsement.