Prevalence of Antibodies and Cytokines in Participants With Chronic Granulomatous Disease

To take part in this study, you must have a confirmed diagnosis of Chronic Granulomatous Disease (CGD). This diagnosis must have been made by your doctor based on specific test results that show how your immune cells are working, or through a genetic test confirming a problem with a specific gene linked to CGD.

It's important that you (or your parent or guardian if you're a child) are able to understand what the study involves and agree to take part by signing a consent form. You also need to be able to follow the study instructions and attend any necessary appointments to provide samples.

You cannot take part if you have had a bone marrow transplant from another person or if you have previously received an experimental gene therapy. Also, if the study doctor thinks you wouldn't be able to provide the blood samples needed, you wouldn't be able to join.

If you decide to take part in this study, the main thing you would need to do is provide one or more blood samples. These samples will then be tested to look for the antibodies and cytokines we mentioned. Since this is an observational study, you won't be given any new medications or treatments as part of the research. There are no special visits beyond giving the blood sample, and the study doesn't involve long-term follow-up or multiple appointments after the sample collection. The total time involvement for you would be limited to the collection of the blood samples.