Home Reported Outcomes in C3G Study

Inclusion Criteria:

Eligible participants will meet the following basic criteria:

* Clinical diagnosis of C3G, regardless of symptom, treatment, or transplant history
* Adult aged 18 or older; adult caregiver to an adult patient aged 18 or older; or adult caregiver to a pediatric patient under 18 years of age
* Able to provide informed consent
* Has access to technology (i.e. mobile phone, tablet) that facilitates their participation in the app-based study
* US-based with a proficient understanding of and ability to read the English language

The study team will aim to enroll and collect data on participants who are taking any form of treatment. Participants may be asked to recall the start date of taking their current therapy.

Diagnosis of C3G will be confirmed through self-reported screening procedures, patient-supplied documentation, and/or successful linkage of the patient's data with their record in a Novartis data platform. Confirmation of diagnosis for each participant will be reviewed by the Folia Health study team as part of standard validation procedures.

Exclusion Criteria:

Study participants who do not fit all inclusion criteria listed above are unable to participate in this study. Outside of the stated inclusion criteria, there is currently no other exclusion criteria in order to meet the exploratory nature of the primary endpoint. This includes treatment regimen; there is no exclusion criteria on the basis of treatment prescription or use.