Study of Genetic Anomalies of Complement Related Proteins in Patients With IgA Glomerulonephritis

This study has been completed.
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Ohio State University
Information provided by:
National Center for Research Resources (NCRR) Identifier:
First received: October 18, 1999
Last updated: June 23, 2005
Last verified: April 2002

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.

IGA Glomerulonephritis

Study Type: Observational
Study Design: Primary Purpose: Screening

Resource links provided by NLM:

Further study details as provided by National Center for Research Resources (NCRR):

Estimated Enrollment: 105
Study Start Date: January 1998
Detailed Description:


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.


Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
  • IgA glomerulonephritis
  Contacts and Locations
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Please refer to this study by its identifier: NCT00004305

United States, Ohio
Ohio State University
Columbus, Ohio, United States
Sponsors and Collaborators
National Center for Research Resources (NCRR)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Ohio State University
Study Chair: Lee A. Hebert Ohio State University
  More Information

No publications provided Identifier: NCT00004305     History of Changes
Other Study ID Numbers: 199/11791, OSU-94H0338
Study First Received: October 18, 1999
Last Updated: June 23, 2005
Health Authority: United States: Federal Government

Keywords provided by National Center for Research Resources (NCRR):
IgA glomerulonephritis
rare disease
renal and genitourinary disorders

Additional relevant MeSH terms:
Glomerulonephritis, IGA
Autoimmune Diseases
Immune System Diseases
Kidney Diseases
Urologic Diseases processed this record on November 30, 2015