Description of Business	6 Months Ended
Jun. 30, 2024
Accounting Policies [Abstract]
Description of Business	Note 1. Description of Business Eledon Pharmaceuticals, Inc. is a clinical stage biotechnology company using its immunology expertise in targeting the CD40 Ligand (“CD40L”, or “CD154”) pathway to develop therapies to protect transplanted organs and prevent rejection, and to treat amyotrophic lateral sclerosis (“ALS”). The Company’s lead compound in development is tegoprubart, an IgG1, anti-CD40L antibody with high affinity for the CD40 Ligand, a well-validated biological target that we believe has broad therapeutic potential. 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, Eledon 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. The Company maintains its corporate headquarters in Irvine, California and has research and development facilities in Burlington, Massachusetts. Restatement of Previously Issued Financial Statements In the course of preparing the Company’s Condensed Consolidated Financial Statements as of and for the three and six months ended June 30, 2024, the Company determined that the Common Warrants and the Subsequent Closing Warrants (See Note 9) do not meet the conditions to be classified as equity instruments under ASC 815-40, “Derivatives and Hedging — Contracts in Entity’s Own Equity,” (“ASC 815-40”) and must instead be recorded as liabilities on the Company’s consolidated balance sheet at their fair value and remeasured at fair value for each subsequent reporting period. As a result, the Company determined that a correction was necessary with respect to the Company’s reporting and recording of the fair value of the Common Warrants and the Subsequent Closing Warrants. Certain prior period financial statements and financial information are presented herein as restated. See Note 13 for further information.

Description of Business

6 Months Ended

Jun. 30, 2024

Note 1. Description of Business

Eledon Pharmaceuticals, Inc. is a clinical stage biotechnology company using its immunology expertise in targeting the CD40 Ligand (“CD40L”, or “CD154”) pathway to develop therapies to protect transplanted organs and prevent rejection, and to treat amyotrophic lateral sclerosis (“ALS”). The Company’s lead compound in development is tegoprubart, an IgG1, anti-CD40L antibody with high affinity for the CD40 Ligand, a well-validated biological target that we believe has broad therapeutic potential. 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, Eledon 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. The Company maintains its corporate headquarters in Irvine, California and has research and development facilities in Burlington, Massachusetts.

Restatement of Previously Issued Financial Statements

In the course of preparing the Company’s Condensed Consolidated Financial Statements as of and for the three and six months ended June 30, 2024, the Company determined that the Common Warrants and the Subsequent Closing Warrants (See Note 9) do not meet the conditions to be classified as equity instruments under ASC 815-40, “Derivatives and Hedging — Contracts in Entity’s Own Equity,” (“ASC 815-40”) and must instead be recorded as liabilities on the Company’s consolidated balance sheet at their fair value and remeasured at fair value for each subsequent reporting period. As a result, the Company determined that a correction was necessary with respect to the Company’s reporting and recording of the fair value of the Common Warrants and the Subsequent Closing Warrants. Certain prior period financial statements and financial information are presented herein as restated. See Note 13 for further information.