Eledon Pharmaceuticals Reports Second Quarter 2026 Financial Results and Recent Business Highlights

Successful End-of-Phase 2 meeting with FDA supports advancement of tegoprubart into a global Phase 3 kidney transplantation trial, on track to initiate in late 2026

Long-term Phase 2 BESTOW data presented at ATC 2026 demonstrated sustained higher kidney function and improved patient-reported outcomes with tegoprubart compared with tacrolimus

Updated islet cell transplantation data presented at ADA 2026 showed 100% insulin independence in all 12 patients with type 1 diabetes

Cash, cash equivalents and short-term investments of $88.8 million as of June 30, 2026

IRVINE, Calif., Aug. 13, 2026 (GLOBE NEWSWIRE) -- Eledon Pharmaceuticals, Inc. (“Eledon”) (Nasdaq: ELDN) today reported its second quarter 2026 operating and financial results and provided recent business highlights.

“During the first half of the year, we made meaningful progress establishing the regulatory framework for our planned Phase 3 kidney transplantation program, which we expect to initiate later this year,” said David-Alexandre C. Gros, M.D., Chief Executive Officer of Eledon. “The continued strength of our clinical data, including sustained long-term kidney function in BESTOW and the compelling results from the UChicago Medicine islet cell transplantation study, reinforces the potential of tegoprubart to improve outcomes across multiple transplant settings. We look forward to advancing our Phase 3 program and expanding the clinical evidence for tegoprubart across additional transplant indications.”

Kidney Transplantation

• Completed a successful End-of-Phase 2 meeting with the U.S. Food and Drug Administration, establishing the regulatory framework for the planned Phase 3 trial of tegoprubart in kidney transplantation. The global trial is on track to initiate in late 2026 and enroll approximately 600 patients, with a primary endpoint of non-inferiority versus tacrolimus at 52 weeks based on a composite of biopsy-proven acute rejection (BPAR), graft loss and death.

• Presented new long-term data from the Phase 2 BESTOW clinical program at the American Transplant Congress (ATC) in June 2026, demonstrating sustained higher kidney function in kidney transplant patients treated with tegoprubart compared with tacrolimus, the current standard-of-care immunosuppression therapy. At 18 months, the eGFR curves showed a statistically significant separation (p<0.05), with mean eGFR approximately 12 mL/min/1.73 m² higher for tegoprubart compared with tacrolimus (approximately 74 vs. 61 mL/min/1.73 m²). No BPAR events were observed in tegoprubart-treated patients after the first six months post-transplant, compared with seven BPAR events (9.4% of tacrolimus-treated patients) reported in the tacrolimus arm. Patient-reported outcomes at 52 weeks favored tegoprubart, with statistically significant improvements versus tacrolimus on two validated measures of symptom burden. Long-term data from the BESTOW extension trial also demonstrated favorable long-term safety and tolerability.

• Treated the first two patients in an investigator-initiated study of kidney transplant tolerance induction at Massachusetts General Hospital.

• Entered into a strategic partnership with Natera, Inc., a global leader in cell-free DNA testing and precision medicine, to incorporate Natera’s Prospera kidney transplant assessment test as the exclusive donor-derived cell-free DNA (dd-cfDNA) monitoring assay in Eledon’s planned Phase 3 kidney transplantation trial.

Islet Cell Transplantation

• Presented updated data from the University of Chicago Medicine investigator-initiated islet cell transplantation study at ADA 2026. All 12 patients with T1D achieved insulin independence and HbA1c below 6.5%, with a mean most recent HbA1c of approximately 5.4% and no severe hypoglycemic episodes post-transplant. Tegoprubart demonstrated stable islet graft function through a maximum follow-up of 22 months and was generally well tolerated, with no evidence of nephrotoxicity, hypertension or neurotoxicity.

The Company anticipates the following milestones in 2026 and over the next 12 months:

• Initiate Phase 3 clinical trial evaluating tegoprubart in kidney transplantation in late 2026.

• Support the initiation of an investigator-led study evaluating tegoprubart for the prevention of organ rejection in patients with renal dysfunction receiving an islet cell transplant in 2026.

• Initiate company-sponsored, registration path study evaluating tegoprubart in islet cell transplantation.

• Support the initiation of an investigator-led study evaluating tegoprubart for the prevention of organ rejection in patients receiving a de novo liver transplant.

• Receive FDA regulatory guidance on the path to market for tegoprubart in xenotransplantation.

Cash, cash equivalents and short-term investments totaled $88.8 million as of June 30, 2026, compared to $133.3 million as of December 31, 2025. The Company expects current cash, cash equivalents and short-term investments to fund operations into the second quarter of 2027.

Research and development (R&D) expenses for the second quarter of 2026 were $18.2 million, including $2.1 million of non-cash stock-based compensation expense, compared to $20.3 million for the comparable period in 2025, including $1.1 million of non-cash stock-based compensation expense.

General and administrative (G&A) expenses for the second quarter of 2026 were $4.6 million, including $1.1 million of non-cash stock-based compensation expense, compared to $4.5 million for the comparable period in 2025, including $1.6 million of non-cash stock-based compensation expense.

Net loss for the second quarter of 2026 was $31.6 million, or $0.27 per basic common share, compared to a net loss of $11.2 million, or $0.13 per basic common share, for the comparable period in 2025. Net loss in the second quarter of 2026 included a non-cash loss of $9.6 million from changes in the fair value of warrant liabilities, while the 2025 net loss included a non-cash gain of $12.3 million from such changes. Excluding the non-cash items related to changes in the fair value of warrant liabilities, Eledon would have recorded a net loss of $22.0 million for the three months ended June 30, 2026, and $23.5 million for the three months ended June 30, 2025.

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-CD40L 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.

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This press release contains forward-looking statements that involve substantial risks and uncertainties. Any statements about the company’s future expectations, plans and prospects, including statements about planned clinical trials, the development of product candidates, expected timing for initiation of future clinical trials, expected timing for receipt of data from clinical trials, the company’s capital resources and ability to finance planned clinical trials, 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: our short operating history and shifts in our business strategy; our operating losses since inception; our need for additional funding to develop our lead drug candidate and our ability to secure additional funding on acceptable terms or at all; the impact of issuances of our common stock, including the possibility of dilution or a decline in our stock price; our ability to successfully develop our product candidates; unfavorable global economic and financial market conditions; the regulatory environment of our business and our ability to obtain required regulatory approvals; results of non-clinical studies and clinical trials, and risks that non-clinical studies or early clinical trials may not be predictive of results of later-stage clinical trials; delays or difficulties in enrollment of patients in clinical trials; our ability to attract and retain our executives and key employees; legislation of the pharmaceutical and healthcare industries; cybersecurity and data privacy risks; the ability of our products to achieve marketing approval; competition in our industry; our ability to obtain insurance coverage; our dependence on contract research organizations; our ability to protect our intellectual property; public health crises; our ability to maintain proper and effective internal control over financial reporting and other risks disclosed in our Annual Report on Form 10-K for the year ended December 31, 2025, filed with the Securities and Exchange Commission on March 19, 2026. 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 materially from the forward-looking statements contained herein, are discussed in our Annual Report on Form 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 as 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.