Description of Business	12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]
Description of Business	Note 1. Description of Business Eledon Pharmaceuticals, Inc. (formerly Novus Therapeutics, Inc.) is a clinical stage biopharmaceutical company focused on developing life-changing, targeted medicines for persons living with an autoimmune disease, requiring an organ or cell-based transplant, or living with amyotrophic lateral sclerosis (“ALS”). We believe that this approach has the potential to allow us to: develop more precise therapies with a resulting potential for both increased efficacy and safety; identify patients and indications more likely to respond to our treatment approaches; and pursue multiple indications for product candidates. Unless otherwise indicated, references to the terms “Eledon,” “our,” “us,” “we”, or the “Company” refer to Eledon Pharmaceuticals, Inc. and its wholly-owned subsidiaries, on a consolidated basis. On September 14, 2020, Novus Therapeutics, Inc. (“Novus”) acquired Anelixis Therapeutics, Inc. (“Anelixis”), a privately held clinical stage biotechnology company developing a next generation anti-CD40L antibody as a potential treatment for organ and cellular transplantation, autoimmune diseases, and neurodegenerative diseases (see Note 10). Following the acquisition of Anelixis, Novus changed its name to Eledon Pharmaceuticals, Inc. The Company has continued to maintain its corporate headquarters in Southern California and has research and development facilities in the Boston, Massachusetts area. In 2017, Otic Pharma, Ltd. (“Otic”) consummated a reverse merger with Tokai Pharmaceuticals, Inc. (“Tokai”), pursuant to which, among other things, Tokai purchased from Otic and its stockholders all of the common and preferred shares of Otic in exchange for the issuance of a certain number of shares of common stock of Tokai (the “Reverse Merger”). Following the Reverse Merger, Tokai changed its name to Novus Therapeutics, Inc.

Description of Business

12 Months Ended

Dec. 31, 2020

Note 1. Description of Business

Eledon Pharmaceuticals, Inc. (formerly Novus Therapeutics, Inc.) is a clinical stage biopharmaceutical company focused on developing life-changing, targeted medicines for persons living with an autoimmune disease, requiring an organ or cell-based transplant, or living with amyotrophic lateral sclerosis (“ALS”). We believe that this approach has the potential to allow us to: develop more precise therapies with a resulting potential for both increased efficacy and safety; identify patients and indications more likely to respond to our treatment approaches; and pursue multiple indications for product candidates. Unless otherwise indicated, references to the terms “Eledon,” “our,” “us,” “we”, or the “Company” refer to Eledon Pharmaceuticals, Inc. and its wholly-owned subsidiaries, on a consolidated basis.

On September 14, 2020, Novus Therapeutics, Inc. (“Novus”) acquired Anelixis Therapeutics, Inc. (“Anelixis”), a privately held clinical stage biotechnology company developing a next generation anti-CD40L antibody as a potential treatment for organ and cellular transplantation, autoimmune diseases, and neurodegenerative diseases (see Note 10). Following the acquisition of Anelixis, Novus changed its name to Eledon Pharmaceuticals, Inc. The Company has continued to maintain its corporate headquarters in Southern California and has research and development facilities in the Boston, Massachusetts area.

In 2017, Otic Pharma, Ltd. (“Otic”) consummated a reverse merger with Tokai Pharmaceuticals, Inc. (“Tokai”), pursuant to which, among other things, Tokai purchased from Otic and its stockholders all of the common and preferred shares of Otic in exchange for the issuance of a certain number of shares of common stock of Tokai (the “Reverse Merger”). Following the Reverse Merger, Tokai changed its name to Novus Therapeutics, Inc.