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Spruce Biosciences Reports First Quarter 2025 Financial Results and Provides Corporate Updates

Acquisition of Tralesinidase Alfa Enzyme Replacement Therapy (TA-ERT) for the Treatment of Sanfilippo Syndrome Type B (MPS IIIB)

Biologics License Application (BLA) Submission to U.S. FDA for TA-ERT Expected in 1H 2026

SOUTH SAN FRANCISCO, Calif.–(BUSINESS WIRE)–May 6, 2025– Spruce Biosciences, Inc. (OTC: SPRB), a late-stage biopharmaceutical company focused on developing and commercializing novel therapies for neurological disorders with significant unmet medical need, today reported financial results for the first quarter ended March 31, 2025 and provided corporate updates.

“With no FDA-approved treatments currently available to treat MPS IIIB, TA-ERT has the potential to be a groundbreaking advancement for patients and families impacted by this devastating disease,” said Javier Szwarcberg, M.D., M.P.H., Chief Executive Officer of Spruce. “Across the landscape, this is an incredibly important and exciting time for patients and families affected by neuropathic MPS diseases. Looking ahead, we remain focused on pursuing accelerated approval of TA-ERT and filing the BLA in the first half of 2026. We also plan to initiate a confirmatory study prior to potential accelerated approval of TA-ERT and enable expanded access programs to ensure that patients have access to therapy.”

Corporate Updates

  •  TA-ERT for the Treatment of MPS IIIB. Spruce entered into an Asset Purchase Agreement under which the company acquired an exclusive worldwide license agreement for TA-ERT and other enzyme replacement therapy products. TA-ERT is a fusion protein comprised of recombinant human alpha-N-acetylglucosaminidase (rhNAGLU) with modified human insulin-like growth factor 2 via an amino acid linker. TA-ERT is intended as an enzyme replacement therapy for the treatment of patients with MPS IIIB who lack rhNAGLU enzyme activity. In March 2024, in a Type C meeting with the U.S. Food and Drug Administration (FDA), the FDA confirmed that HS-NRE is deemed to be a surrogate biomarker reasonably likely to predict clinical benefit and could serve as a basis for accelerated approval. The FDA also confirmed that the completed clinical and non-clinical studies of TA-ERT were sufficient for a BLA submission and provided guidance around key design elements of a confirmatory trial, which must be initiated prior to potential accelerated approval of TA-ERT. TA-ERT has received Fast Track Designation, Rare Pediatric Disease Designation, and Orphan Drug Designation in the U.S. and EU. Spruce intends to submit the BLA of TA-ERT for the treatment of MPS IIIB in the first half of 2026.
  •  Tildacerfont and Cortibon for the Treatment of Major Depressive Disorder (MDD).Spruce entered into a license, development and option agreement (the “HMNC Agreement”) with HMNC Holding GmbH (“HMNC”). Under the terms of the HMNC Agreement, HMNC will fund and conduct a Phase 2 proof-of-concept study of tildacerfont, a potent and highly selective, oral, small-molecule antagonist of the CRF1 receptor, in patients with MDD who will be screened using Cortibon, HMNC’s proprietary genetic test. HMNC has initiated the Phase 2 TAMARIND study, which will explore the efficacy of 400mg twice-daily tildacerfont versus placebo in improving depressive symptoms in MDD patients. Topline results from TAMARIND are anticipated in the first half of 2026.

First Quarter 2025 Financial Results

  •  Cash and Cash Equivalents: Cash and cash equivalents as of March 31, 2025 were $25.6 million. Cash and cash equivalents are expected to allow the company to fund its current operating plan through the end of 2025.
  •  Research and Development (R&D) Expenses: R&D expenses for the three months ended March 31, 2025 were $10.8 million compared to $10.3 million for the same period in 2024. R&D expenses for the three months ended March 31, 2025 include $5.7 million in costs related to the acquisition of SPR202, an anti-corticotrophin releasing hormone monoclonal antibody for the treatment of congenital adrenal hyperplasia.
  •  General and Administrative (G&A) Expenses: G&A expenses for the three months ended March 31, 2025 were $3.7 million compared to $4.3 million for the same period in 2024, primarily driven by a decrease in stock-based compensation expense.
  •  Total Operating Expenses: Total operating expenses for the three months ended March 31, 2025 were $14.5 million compared to $14.6 million for the same period in 2024. Operating expenses include non-cash stock-based compensation expenses of $0.5 million for the three months ended March 31, 2025 compared to $1.6 million for the same period in 2024.
  •  Net Loss: Net loss for the three months ended March 31, 2025 was $14.0 million compared to $11.6 million for the same period in 2024.

About Spruce Biosciences

Spruce Biosciences is a late-stage biopharmaceutical company focused on developing and commercializing novel therapies for neurological disorders with significant unmet medical need. To learn more, visit www.sprucebio.com and follow us on XLinkedInFacebook and YouTube.

Forward-Looking Statements

Statements contained in this press release regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements include statements regarding, among other things, the ability to seek accelerated approval of TA-ERT for MPS IIIB based on existing clinical data; the anticipated timing and conduct of Spruce’s confirmatory trial for TA-ERT; the timing and likelihood of regulatory filings and approvals for TA-ERT, including the anticipated BLA Submission of TA-ERT for MPS IIIB in the first half of 2026; Spruce’s expectation that topline results from the TAMARIND study will be available in the first half of 2026; and Spruce’s intended focus on serious diseases with significant unmet medical need and clear biology, are forward-looking statements. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. Words such as “anticipate”, “will”, “potential”, “intend”, “expect” and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon Spruce’s current expectations and involve assumptions that may never materialize or may prove to be incorrect. Actual results could differ materially from those anticipated in such forward-looking statements as a result of various risks and uncertainties, which include, without limitation, risks and uncertainties associated with Spruce’s business in general, the impact of geopolitical and macroeconomic events, and the other risks described in Spruce’s filings with the U.S. Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made and are based on management’s assumptions and estimates as of such date. Spruce undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made, except as required by law.

SPRUCE BIOSCIENCES, INC.CONDENSED BALANCE SHEETS(unaudited)(in thousands, except share and per share amounts)
 
  March 31, December 31,
  2025 2024
ASSETS    
Current assets:    
Cash and cash equivalents $25,615  $38,753 
Prepaid expenses  2,899   3,177 
Other current assets  2,062   2,276 
Total current assets  30,576   44,206 
Right-of-use assets  869   934 
Other assets  204   69 
Total assets $31,649  $45,209 
LIABILITIES AND STOCKHOLDERS’ EQUITY    
Current liabilities:    
Accounts payable $1,879  $1,295 
Accrued expenses and other current liabilities  12,442   12,329 
Term loan, current portion  1,345   1,622 
Total current liabilities  15,666   15,246 
Lease liabilities, net of current portion  659   736 
Term loan, net of current portion     124 
Other liabilities     282 
Total liabilities  16,325   16,388 
Commitments and contingencies    
Stockholders’ equity:    
Preferred stock, $0.0001 par value; 10,000,000 shares authorized and no shares issued or outstanding as of March 31, 2025 and December 31, 2024      
Common stock, $0.0001 par value; 200,000,000 shares authorized as of March 31, 2025 and December 31, 2024; 42,231,285 shares issued and outstanding as of March 31, 2025 and December 31, 2024  4   4 
Additional paid-in capital  279,629   279,085 
Accumulated deficit  (264,309)  (250,268)
Total stockholders’ equity  15,324   28,821 
Total liabilities and stockholders’ equity $31,649  $45,209 
SPRUCE BIOSCIENCES, INC.CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS(unaudited)(in thousands, except share and per share amounts)
 
  Three Months Ended March 31,
  2025 2024
Collaboration revenue $  $2,002 
Operating expenses:    
Research and development  10,837   10,317 
General and administrative  3,655   4,318 
Total operating expenses  14,492   14,635 
Loss from operations  (14,492)  (12,633)
Interest expense  (36)  (97)
Interest and other income, net  487   1,105 
Net loss and comprehensive loss  (14,041)  (11,625)
Net loss per share, basic and diluted $(0.32) $(0.28)
Weighted-average shares of common stock outstanding, basic and diluted  43,944,946   41,096,231 
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Media
Katie Beach Oltsik
Inizio Evoke Comms
(937) 232-4889
Katie.Beach@inizioevoke.com
media@sprucebio.com

Investors
Samir Gharib
President and CFO
Spruce Biosciences, Inc.
investors@sprucebio.com

Source: Spruce Biosciences, Inc.