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Eledon Pharmaceuticals Announces Orphan Drug Designation Granted to Tegoprubart for the Prevention of Allograft Rejection in Liver Transplantation

Key Takeaway: Eledon Pharmaceuticals announced that the FDA granted Orphan Drug designation to tegoprubart for preventing allograft rejection in liver transplantation. This designation is intended to encourage therapies for rare diseases with high unmet medical needs. Previous studies have shown that tegoprubart could improve graft survival while minimizing side effects commonly associated with traditional immunosuppressants. The company is optimistic about the potential of tegoprubart in this area and plans to initiate a clinical trial soon. Despite the positive developments, challenges related to clinical trial execution remain.

Market Sentiment Analysis

POSITIVE FACTORS

  • Eledon Pharmaceuticals has received Orphan Drug designation from the FDA for tegoprubart, highlighting its promising role in treating liver allograft rejection.
  • Tegoprubart has shown potential in improving graft survival and reducing side effects in previous studies on kidney transplantation.
  • The anticipated clinical trial for liver transplantation represents a significant opportunity for Eledon and the drug.

CONCERNS & RISKS

  • There are inherent risks and uncertainties associated with the clinical development and efficacy of tegoprubart.
  • The company may face challenges in clinical trial timelines, patient enrollment, and funding for ongoing studies.

Full Press Release Details

IRVINE, Calif., March 10, 2026 (GLOBE NEWSWIRE) -- Eledon Pharmaceuticals, Inc. (“Eledon”) (NASDAQ: ELDN) today announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug designation to tegoprubart for the prevention of allograft rejection in liver transplantation. Tegoprubart has previously received orphan drug designation from the FDA for the prevention of allograft rejection in pancreatic islet cell transplantation and for the treatment of amyotrophic lateral sclerosis (ALS).
“Clinical studies in kidney transplantation have demonstrated that tegoprubart has the potential to improve graft survival and function while reducing the side effects associated with calcineurin inhibitors, supporting its promise as a novel immunosuppressive therapy across multiple organ transplant settings,” said David-Alexandre C. Gros, MD, Chief Executive Officer of Eledon. “Based on the encouraging preclinical evidence we have generated to date, we believe liver transplantation represents a significant incremental opportunity for tegoprubart, and we look forward to evaluating its potential in the clinical setting through an anticipated investigator sponsored trial initiating later this year.”
Orphan Drug Designation is intended to support the development of therapies for rare diseases, defined as conditions affecting fewer than 200,000 people in the United States or fewer than 5 in 10,000 individuals in the European Union. These designations provide sponsors with a range of incentives intended to encourage the development of medicines for diseases with high unmet medical needs.
About Eledon Pharmaceuticals and tegoprubart
Eledon Pharmaceuticals, Inc. is a clinical stage biotechnology company that is developing immune-modulating therapies for the management and treatment of life-threatening conditions. The Company’s lead investigational product is tegoprubart, an anti-CD40L antibody with high affinity for the CD40 Ligand, a well-validated biological target that has broad therapeutic potential. The central role of CD40L signaling in both adaptive and innate immune cell activation and function positions it as an attractive target for non-lymphocyte depleting, immunomodulatory therapeutic intervention. The Company is building upon a deep historical knowledge of anti-CD40 Ligand biology to conduct preclinical and clinical studies in kidney allograft transplantation, xenotransplantation, islet cell transplantation, liver transplantation and amyotrophic lateral sclerosis (ALS). Eledon is headquartered in Irvine, California. For more information, please visit the Company’s website at www.eledon.com.
Follow Eledon Pharmaceuticals on social media: LinkedIn; Twitter
Forward-Looking Statements
This press release contains forward-looking statements that involve substantial risks and uncertainties. Any statements about the company’s planned clinical trials, the development of product candidates, expected or future results of tegoprubart trials and its ability to prevent rejection in connection with liver transplantation, as well as other statements containing the words “believes,” “anticipates,” “plans,” “expects,” “estimates,” “intends,” “predicts,” “projects,” “targets,” “looks forward,” “could,” “may,” and similar expressions, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are inherently uncertain and are subject to numerous risks and uncertainties, including: risks relating to the safety and efficacy of our drug candidates; risks relating to clinical development timelines, including interactions with regulators and clinical sites, as well as patient enrollment; and risks relating to costs of clinical trials and the sufficiency of the company’s capital resources to fund planned clinical trials. Actual results may differ materially from those indicated by such forward-looking statements as a result of various factors. These risks and uncertainties, as well as other risks and uncertainties that could cause the company’s actual results to differ significantly from the forward-looking statements contained herein, are discussed in our quarterly 10-Q, annual 10-K, and other filings with the U.S. Securities and Exchange Commission, which can be found at www.sec.gov. Any forward-looking statements contained in this press release speak only as of the date hereof and not of any future date, and the company expressly disclaims any intent to update any forward-looking statements, whether as a result of new information, future events or otherwise.
Follow Eledon Pharmaceuticals on social media: LinkedIn; Twitter
Source: Eledon Pharmaceuticals

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orphan drug designation

Frequently Asked Questions

What is tegoprubart's FDA designation?

Tegoprubart has received Orphan Drug designation from the FDA for preventing allograft rejection in liver transplantation.

What conditions can tegoprubart treat?

Tegoprubart is designated for preventing allograft rejection in liver and pancreatic islet cell transplantations, and for treating ALS.

What are the benefits of tegoprubart in transplantation?

Tegoprubart may improve graft survival and reduce side effects related to calcineurin inhibitors in transplants.

What is the focus of Eledon Pharmaceuticals?

Eledon Pharmaceuticals develops immune-modulating therapies for life-threatening conditions, with tegoprubart as their lead product.

What does Orphan Drug Designation offer?

It provides incentives to develop medicines for rare diseases affecting fewer than 200,000 people in the U.S.

Last updated: Mar 10, 2026