Description of Business	9 Months Ended
Sep. 30, 2021
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 discovering or acquiring, and then developing life-changing, targeted medicines for persons requiring an organ or cell-based transplant, living with autoimmune disease, 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. The Company’s lead compound in development is AT-1501, an IgG1, anti-CD40L antibody with high affinity for CD40 ligand (CD40L, also called CD154), a well-validated biological target with broad therapeutic potential. AT-1501 is engineered to potentially both improve safety and provide pharmacokinetic, pharmacodynamic, and dosing advantages compared to other anti-CD40 approaches. The central role of CD40/CD40L signaling in generating pro-inflammatory responses makes it an attractive candidate for therapeutic intervention in autoimmune disease, induction and maintenance of transplant tolerance, and neuroinflammation. Blocking the activation of the CD40L pathway prevents acute and long-term allograft transplant rejection in multiple animal species and ameliorates disease progression and pathology in preclinical models of autoimmunity and ALS. 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, we 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 7). Following the acquisition of Anelixis, we changed our name to Eledon Pharmaceuticals, Inc. The Company has continued to maintain its corporate headquarters in Irvine, California and has research and development facilities in the Boston, Massachusetts area.

Description of Business

9 Months Ended

Sep. 30, 2021

Note 1. Description of Business

Eledon Pharmaceuticals, Inc. (formerly Novus Therapeutics, Inc.) is a clinical stage biopharmaceutical company focused on discovering or acquiring, and then developing life-changing, targeted medicines for persons requiring an organ or cell-based transplant, living with autoimmune disease, 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. The Company’s lead compound in development is AT-1501, an IgG1, anti-CD40L antibody with high affinity for CD40 ligand (CD40L, also called CD154), a well-validated biological target with broad therapeutic potential. AT-1501 is engineered to potentially both improve safety and provide pharmacokinetic, pharmacodynamic, and dosing advantages compared to other anti-CD40 approaches. The central role of CD40/CD40L signaling in generating pro-inflammatory responses makes it an attractive candidate for therapeutic intervention in autoimmune disease, induction and maintenance of transplant tolerance, and neuroinflammation. Blocking the activation of the CD40L pathway prevents acute and long-term allograft transplant rejection in multiple animal species and ameliorates disease progression and pathology in preclinical models of autoimmunity and ALS. 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, we 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 7). Following the acquisition of Anelixis, we changed our name to Eledon Pharmaceuticals, Inc. The Company has continued to maintain its corporate headquarters in Irvine, California and has research and development facilities in the Boston, Massachusetts area.