Immune System Related Kidney Disease Description: The purpose of this clinical study is to evaluate patients with kidney diseases that are suspected to be related to the immune system. Trial Summary: Condition-Glomerulonephritis -Lupus Nephritis -Membraneous Glomerulonephritis -Autoimmune Disease -Nephrotic Syndrome Start DateApril 1992 NCT IDNCT00001979 Trial TypeObservational Eligibility: Age5 years and older Accepts Healthy VolunteersNo Inclusion Criteria: Immunologically-mediated renal diseases, proven or suspected Immunologically-mediated diseases with potential for kidney disease Willingness of the parent or guardian to give informed consent Exclusion Criteria: Concomitant medical problems which would confound the interpretation of studies of the immunologic kidney disorder Concomitant medical, surgical or other conditions for inadequate facilities or funds are available to support their care at the NIH Frequently Asked Questions (FAQs): This study is listed as an observational study. What does that mean? An observational study is a study attempting to find a cause-effect relationship by collecting as much data as possible. For this study, the researchers are attempting to learn more about the causes and specific abnormalities associated with autoimmune kidney disease. What would I/my child have to do if enrolled in this study? Participants will undergo a history and physical examination, and a standard lab test. At any time, the participants may also be asked to submit blood or urine samples for further research. Who can participate? Adult and pediatric patients older than 5 years of age. Who do I contact with general questions? Howard A Austin, MD (301-435-5055), email at: howarda@intra.niddk.nih.gov Where can I learn more? Immune System Related Kidney Disease Where can I participate? The following is a list of study sites in the US and Canada with contact information for the corresponding principal investigators: Contact Information by Trial Site StateCity Site NameContact Information MDBethesdaNational Institute of Health Clinical CenterHoward A Austin, MD: 301-435-5055, howarda@intra.niddk.nih.gov Search for more clinical trials