Everest Medicines Announces that Spero Therapeutics Entered into Licensing Agreement with Pfizer Inc. for SPR206 in ex-U.S. and ex-Asia Territories

Everest Medicines (HKEX 1952.HK), a biopharmaceutical company focused on developing and commercializing transformative pharmaceutical products for patients in Greater China and other parts of Asia today announced that Spero Therapeutics, Inc. (Nasdaq: SPRO), a licensing partner of Everest Medicines, entered into a regional licensing agreement with Pfizer Inc. (NYSE: PFE) for SPR206, Spero's intravenously (IV)-administered next-generation polymyxin product candidate being developed to treat serious multi-drug resistant (MDR) Gram-negative infections in the hospital setting.

Under the terms of the licensing agreement, Spero has granted Pfizer the rights to develop, manufacture, and commercialize SPR206 in ex-U.S. and ex- Asia territories. In exchange for these rights, Spero is eligible to receive up to $80 million in development and sales milestones, and high single digit to low double-digit royalties on net sales of SPR206 in these territories. Pfizer has also made a $40 million equity investment in Spero as part of the Pfizer Breakthrough Growth Initiative, a program focused on funding innovative science to meet patient needs.

Under a licensing agreement with Spero that was announced in January of 2019, Everest Medicines has exclusive rights to develop, manufacture and commercialize SPR206 in Greater China , South Korea and certain Southeast Asian countries (the "Territory") for the treatment of multi-drug resistant (MDR) Gram-negative bacterial infections. The licensing agreement was amended in January 2021 for the assignment of relevant patents for SPR206 in the Territory to Everest. This license agreement between Spero and Pfizer will have no impact on Everest's rights for SPR206.

"This deal reinforces the potential for SPR206 to serve as an innovative treatment option for MDR Gram-negative bacterial infections, which is a critical ongoing global public health issue," said Kerry Blanchard , MD, PhD, CEO of Everest Medicines. "Pfizer is a leader in the anti-infective therapeutic space, and Pfizer's decision to partner with Spero on this important asset is a testament to Everest's strategic approach to choosing promising and valuable development-stage global assets. We look forward to contributing to the broad and rapid clinical development of SPR206 as we work to address the challenges of MDR Gram-negative bacterial infections."

About SPR206

SPR206 is a potentially best-in-class, novel polymyxin derivative that was designed to reduce the kidney toxicity that is seen clinically with polymyxin B and colistin. Polymyxins are antibiotics frequently used as a last resort for challenging MDR gram-negative infections, but they are associated with significant neurotoxicity and nephrotoxicity. In a double-blind, placebo-controlled Phase 1 clinical trial in healthy volunteers conducted by our partner Spero Therapeutics, SPR206 appeared well tolerated at doses likely to be within a therapeutic range for MDR Gram-negative bacterial infections. Importantly, it also showed no evidence of nephrotoxicity at the doses tested.

About Everest Medicines

Everest Medicines is a biopharmaceutical company focused on developing and commercializing transformative pharmaceutical products that address critical unmet medical needs for patients in Greater China and other Asian markets. The management team of Everest Medicines has deep expertise and an extensive track record of high-quality clinical development, regulatory affairs, CMC, business development and operations both in China and with leading global pharmaceutical companies. Everest Medicines has built a portfolio of eight potentially global first-in-class or best-in-class molecules, many of which are in late stage clinical development. The Company's therapeutic areas of interest include oncology, autoimmune disorders, cardio-renal diseases and infectious diseases. For more information, please visit its website at www.everestmedicines.com .

Cision View original content: https://www.prnewswire.com/news-releases/everest-medicines-announces-that-spero-therapeutics-entered-into-licensing-agreement-with-pfizer-inc-for-spr206-in-ex-us-and-ex-asia-territories-301325440.html

SOURCE Everest Medicines

News Provided by PR Newswire via QuoteMedia

The Conversation (0)
Glowing pills hover above a futuristic digital platform with blue light background.

DCVC, NVIDIA Back Proxima’s US$80 Million Bet on AI Drug Discovery

Artificial intelligence (AI) biotech startup Proxima has raised US$80 million in seed funding to accelerate the development of drugs that modulate protein-to-protein interactions.The financing round was led by Data Collective Venture Capital (DCVC), with participation from NVIDIA's (NASDAQ:NVDA)... Keep Reading...
Large pharmaceutical pill with gold dollar sign in the middle. Stock tickers and charts in the background.

Top 5 Small-cap Pharma Stocks (Updated January 2026)

Today's pharmaceutical stocks are facing the challenges of government-imposed drug price caps, waning demand for COVID-19 vaccines and global stock market upheaval. However, the industry's major underlying drivers — higher rates of cancer and chronic disease — are still at play and not expected... Keep Reading...
Canada maple leaves on left and pharmaceutical pills in red and blue on right.

5 Best-performing Canadian Pharma Stocks (Updated January 2026)

From established players to up-and-coming firms, Canada's pharmaceutical landscape is diverse and dynamic.Canadian drug companies are working to discover and develop major innovations amidst an increasingly competitive global landscape. Rising technologies such as artificial intelligence are... Keep Reading...
Various colorful pills and tablets scattered from a brown bottle on a blue background.

Pharma Market Forecast: Top Trends for Pharma in 2026

The pharmaceutical sector is entering 2026 at a critical juncture. While recent initial public offering (IPO) performance has been stellar, with pharma firms claiming five of the top 10 IPO returns this year, the outlook next year is dominated by significant investment headwinds. Large,... Keep Reading...
InMed Announces Results of 2025 Annual General and Special Meeting

InMed Announces Results of 2025 Annual General and Special Meeting

InMed Pharmaceuticals Inc. (NASDAQ: INM) ("InMed" or the "Company"), a pharmaceutical company focused on developing a pipeline of proprietary small molecule drug candidates for diseases with high unmet medical needs, today confirmed that, at its annual general and special meeting of shareholders... Keep Reading...
InMed Provides Update on BayMedica Commercial Business

InMed Provides Update on BayMedica Commercial Business

InMed Pharmaceuticals Inc. (NASDAQ: INM) ("InMed" or the "Company"), a pharmaceutical company focused on developing a pipeline of proprietary small molecule drug candidates for diseases with high unmet medical needs, today released the following statement.Recently, H.R. 5371, the "Continuing... Keep Reading...

Interactive Chart

Latest Press Releases

Related News