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Diabetic kidney disease (DKD) is a common complication of type 2 diabetes that can lead to kidney failure and increases the risk of cardiovascular disease. This prospective, observational patient registry will follow adults with type 2 diabetes and DKD who are receiving routine clinical care at participating sites, with intentional enrollment from underserved communities. Health information will be collected from medical records and brief questionnaires (including social and access factors) for up to 24 months to understand DKD progression, real-world treatment patterns, and outcomes. This study does not assign any treatment. With participant consent and appropriate privacy safeguards, de-identified registry data may be shared with researchers to accelerate evidence generation and inform future studies focused on improving outcomes.
Full description
This study is a prospective, multi-site observational patient registry designed to characterize real-world diabetic kidney disease (DKD) trajectories, care patterns, and outcomes in care settings that serve underserved communities. The registry is intended to generate representative evidence that reflects routine clinical practice and to identify clinical and non-clinical factors that influence DKD progression and care delivery.
Participants will continue to receive all medical care as determined by their treating clinicians; no treatments, diagnostic tests, or clinical management decisions are assigned by the registry. Longitudinal data will be captured primarily from existing sources (e.g., electronic health records and, where available, linked administrative/claims data), including kidney function and albuminuria measures, cardiometabolic risk factors, comorbid conditions, medication exposure and persistence, clinically relevant safety events, and healthcare utilization. Participants will also be invited to complete brief questionnaires to capture patient-reported outcomes and social determinants of health (SDOH), including access and care barriers that may affect treatment initiation, monitoring, and outcomes.
The registry will support descriptive and comparative effectiveness analyses using appropriate observational methods to address confounding and missingness, and will enable development and validation of risk stratification and treatment-response models to inform precision therapy targeting and equitable implementation in real-world settings. A core emphasis is the creation of a high-quality, standardized dataset with clear provenance and data quality checks to support reproducible research.
Data sharing is a foundational component of the registry. With explicit participant consent and privacy safeguards, de-identified participant-level data and supporting documentation may be made available to qualified researchers under the data access approach described in the IPD sharing plan. Finally, findings and infrastructure developed through this registry (e.g., trial-ready sites, validated phenotypes, and risk models) are intended to inform the design of a subsequent Phase IV pragmatic study, which would be conducted under a separate protocol and separately registered, with re-contact and re-consent as applicable.
Enrollment
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Inclusion criteria
Age ≥18 years at the time of enrollment
Documented diagnosis of type 2 diabetes mellitus in the medical record
Evidence of chronic kidney disease consistent with diabetic kidney disease (DKD), defined by one or more of the following, with evidence of chronicity (present for ≥3 months based on prior laboratory results, diagnosis codes, or clinician documentation):
eGFR <60 mL/min/1.73 m², and/or
Urine albumin-to-creatinine ratio (UACR) ≥30 mg/g
Receiving ongoing clinical care at a participating site with medical record data available for longitudinal follow-up
Able and willing to provide written informed consent (and authorization for medical record review, as applicable) and to complete registry questionnaires
Exclusion criteria
End-stage kidney disease at baseline (maintenance dialysis) or history of kidney transplant
Type 1 diabetes mellitus
Known primary kidney disease not primarily attributable to diabetes that, in the investigator's judgment, is expected to drive kidney outcomes (e.g., polycystic kidney disease, active glomerulonephritis, lupus nephritis, vasculitis)
Inability to provide informed consent or comply with registry procedures (e.g., no feasible longitudinal follow-up through the participating site)
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Data sourced from clinicaltrials.gov
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