Description of Business	9 Months Ended
Sep. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of Business	1. Description of Business Chinook Therapeutics, Inc. (the “Company”, “Chinook”, “we”, “our”, or “us”) is a clinical-stage biopharmaceutical company focused on discovering, developing and commercializing precision medicines for kidney diseases. Our lead clinical program is atrasentan, an endothelin receptor antagonist that was in-licensed from AbbVie in late 2019. In March 2021, we initiated the phase 3 ALIGN trial of atrasentan for IgA nephropathy (“IgAN”) and in April 2021, we initiated the phase 2 AFFINITY basket trial of atrasentan for proteinuric glomerular diseases. Our second product candidate, BION-1301, is an anti-APRIL monoclonal antibody also in development for patients with IgAN, and we recently presented results from the ongoing phase 1/2 trial at the American Society of Nephrology (ASN) Kidney Week 2021 in November. Our pipeline also includes CHK-336, an oral small molecule LDHA inhibitor planned to enter clinical trials in the first half of 2022 for the treatment of primary hyperoxaluria. In addition, we are building our precision medicine pipeline through research and discovery programs for other rare, severe chronic kidney diseases. We were incorporated in Delaware and are headquartered in Seattle, Washington. The Company as used in the accompanying notes to the unaudited condensed consolidated financial statements, refers to Private Chinook prior to the completion of the Merger and Public Chinook subsequent to the completion of the Merger. See the note “Reverse Merger and Contingent Value Rights” in the accompanying notes to the condensed consolidated financial statements.

Description of Business

9 Months Ended

Sep. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

1. Description of Business

Chinook Therapeutics, Inc. (the “Company”, “Chinook”, “we”, “our”, or “us”) is a clinical-stage biopharmaceutical company focused on discovering, developing and commercializing precision medicines for kidney diseases. Our lead clinical program is atrasentan, an endothelin receptor antagonist that was in-licensed from AbbVie in late 2019. In March 2021, we initiated the phase 3 ALIGN trial of atrasentan for IgA nephropathy (“IgAN”) and in April 2021, we initiated the phase 2 AFFINITY basket trial of atrasentan for proteinuric glomerular diseases. Our second product candidate, BION-1301, is an anti-APRIL monoclonal antibody also in development for patients with IgAN, and we recently presented results from the ongoing phase 1/2 trial at the American Society of Nephrology (ASN) Kidney Week 2021 in November. Our pipeline also includes CHK-336, an oral small molecule LDHA inhibitor planned to enter clinical trials in the first half of 2022 for the treatment of primary hyperoxaluria. In addition, we are building our precision medicine pipeline through research and discovery programs for other rare, severe chronic kidney diseases. We were incorporated in Delaware and are headquartered in Seattle, Washington.

The Company as used in the accompanying notes to the unaudited condensed consolidated financial statements, refers to Private Chinook prior to the completion of the Merger and Public Chinook subsequent to the completion of the Merger. See the note “Reverse Merger and Contingent Value Rights” in the accompanying notes to the condensed consolidated financial statements.