Phase 2/3 Adaptive Study of VX-147 in Adult and Pediatric Participants With APOL1-Mediated Proteinuric Kidney Disease

Key Inclusion Criteria: Part A: * APOL1 genotype of G1/G1, G2/G2, or G1/G2 * Proteinuric kidney disease Part B: \- Completion of Treatment Period in Part A and no permanent discontinuation of study drug. Key Exclusion Criteria: Part A: * Solid organ or bone marrow transplant * Uncontrolled hypertension * History of diabetes mellitus * Known underlying cause of kidney disease including but not limited to sickle cell disease Part B: * ESKD (End Stage Kidney Disease) as defined in the protocol. * Any lab abnormality that may pose a safety risk to the participant, as judged by the investigator. Other protocol defined Inclusion/Exclusion criteria will apply.