This study is researching experimental drugs called ALN-ANG3 and evinacumab (called "study drugs"). The study is focused on participants who have diabetic kidney disease.

The aim of the study is to see how safe and effective the study drugs are.

The study is looking at several other research questions, including:

• What side effects may happen from taking the study drug
• How much study drug is in the blood at different times

Key Inclusion Criteria:

1. Medical history of type 2 diabetes and receiving medical therapy or lifestyle interventions for glucose management
2. Hemoglobin A1C (HbA1c) of 6.5 to 10% at screening
3. eGFR 30 to 90 mL/min/1.73 m^2 using 2021 Chronic Kidney Disease-Epidemiology Collaboration-Estimated Glomerular Filtration Rate using Creatinine and Cystatin C (CKD-EPI eGFRcr-cys) equation at screening
4. Albuminuria: Urine Albumin to Creatinine Ratio (UACR) of 500 to 5000 mg/g at screening

Key Exclusion Criteria:

1. Known medical history or clinical evidence indicative of non-diabetic renal disease
2. Renal disease that required treatment with systemic immunosuppressive therapy, or a history of dialysis or renal transplant
3. Medically unstable as assessed by the investigator
4. Hospitalization (ie, >24 hours) within 30 days of the screening visit

NOTE: Other Protocol-Defined Inclusion/Exclusion Criteria Apply

All Individual Patient Data (IPD) that underlie publicly available results will be considered for sharing.

When Regeneron has:

• received marketing authorization from major health authorities (e.g., FDA, European Medicines Agency (EMA), Pharmaceuticals and Medical Devices Agency (PMDA), etc.) for the product and indication or has globally discontinued development of the product for all indications on or after April 2020 and has no plans for future development
• made the study results publicly available (e.g., scientific publication, scientific conference, clinical trial registry)
• the legal authority to share the data, and
• ensured the ability to protect participant privacy

Qualified researchers can submit a proposal for access to individual patient or aggregate level data from a Regeneron-sponsored clinical trial through Vivli. Regeneron's Independent Research Request Evaluation Criteria can be found at: https://www.regeneron.com/sites/default/files/Regeneron-External-Data-Sharing-Policy-and-Independent-Research-Request-Evaluation-Criteria.pdf