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FibroBiologics Announces Successful Manufacturing of CYWC628 Drug Product to Support Upcoming Diabetic Foot Ulcer Clinical Trial

Key Takeaway: FibroBiologics announced the successful manufacturing of the CYWC628 drug product, which is set to support upcoming first-in-human clinical trials for diabetic foot ulcers. This marks a significant milestone as it represents the first large-scale CGMP manufacturing of a fibroblast-based spheroid therapeutic. The company plans to initiate Phase 1/2 clinical trials in the first half of 2026.
Price reaction · baseline $1.32 (2026-03-31 close) · hit pre-market · 2 other FBLG headline(s) in the window, move may be shared
day 0 close
+0.8%
day 1
+4.5%
day 3
+7.6%

Market Sentiment Analysis

POSITIVE FACTORS

  • Successful manufacturing of CYWC628 drug product.
  • First large-scale CGMP manufacturing of a spheroid product.
  • Targets diabetic foot ulcers, a significant unmet medical need.
  • Planned Phase 1/2 clinical trial set for the first half of 2026.

CONCERNS & RISKS

  • Potential risks related to manufacturing sufficient drug product.
  • Dependence on passing all required safety and quality testing.
  • Concerns about liquidity and maintaining capital resources.
  • Uncertainties in research and development progress.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Cash runway
~3 mo
High dilution risk
Lead asset
Tolerogenic Fibroblasts
Phase 1 · Multiple Sclerosis, Relapsing-Remitting

Full Press Release Details

HOUSTON, March 31, 2026(GLOBE NEWSWIRE)-- FibroBiologics, Inc., (Nasdaq: FBLG) (“FibroBiologics”), a clinical-stage biotechnology company with 270+ patents issued and pending with a focus on the development of therapeutics and potential cures for chronic diseases using fibroblasts and fibroblast-derived materials, today announced the successful completion of manufacturing of the first batch of FibroBiologics’ proprietary CYWC628 drug product that will support upcoming first-in-human clinical trials. Manufactured in accordance with Food and Drug Administration’s (FDA’s) Good Manufacturing Practices (CGMP), the drug product will be released after it successfully passes all required safety and quality testing.
The CYWC628 fibroblast-based therapy targets diabetic foot ulcers, a condition that affects millions of patients worldwide and currently lacks effective long-term treatment solutions.
“CYWC628 is not only the first fibroblast-based spheroid therapeutic candidate, its manufacture also represents the first large-scale CGMP manufacturing of a spheroid product for therapeutic use,” said Pete O’Heeron, Founder & Chief Executive Officer of FibroBiologics. “These achievements by our scientific team allow us to move forward with our planned Phase 1/2 clinical trial utilizing CYWC628 in DFU patients in the first half of 2026.”
For more information, please visit FibroBiologics’website,  email FibroBiologics atinfo@fibrobiologics.comor follow FibroBiologics onLinkedIn,YouTube,FacebookorX.

Cautionary Statement Regarding Forward-Looking Statements

This communication contains “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements include information concerning expected research targets and indications of interest, and plans for, and the timing of, clinical trials. These forward-looking statements are based on FibroBiologics’ management’s current expectations, estimates, projections and beliefs, as well as a number of assumptions concerning future events. When used in this communication, the words “estimates,” “projected,” “expects,” “anticipates,” “forecasts,” “plans,” “intends,” “believes,” “seeks,” “may,” “will,” “should,” “future,” “propose” and variations of these words or similar expressions (or the negative versions of such words or expressions) are intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, many of which are outside FibroBiologics’ management’s control, that could cause actual results to differ materially from the results discussed in the forward-looking statements, including those set forth under the caption “Risk Factors” and elsewhere in FibroBiologics’ annual, quarterly and current reports (i.e., Form 10-K, Form 10-Q and Form 8-K) as filed or furnished with the SEC and any subsequent public filings. Copies are available on the SEC’s website, www.sec.gov. These risks, uncertainties, assumptions and other important factors include, but are not limited to: (a) FibroBiologics’ ability to manufacture sufficient drug product to conduct the CYWC628 clinical trial; (b) the manufactured drug product passing all required safety and quality testing; (c) risks related to FibroBiologics’ liquidity and its ability to maintain capital resources sufficient to conduct its business; (d) expectations regarding the initiation, progress and expected results of our R&D efforts and preclinical studies; and (e) the ability of FibroBiologics to successfully prosecute its patent applications. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and FibroBiologics assumes no obligation and, except as required by law, does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. FibroBiologics gives no assurance that it will achieve its expectations.

About FibroBiologics

Based in Houston, FibroBiologics is a clinical-stage biotechnology company developing a pipeline of treatments and seeking potential cures for chronic diseases using fibroblast cells and fibroblast-derived materials. FibroBiologics holds 270+ US and internationally issued patents/patents pending across various clinical pathways, including wound healing, multiple sclerosis, disc degeneration, psoriasis, orthopedics, human longevity, and cancer. FibroBiologics represents the next generation of medical advancement in cell therapy and tissue regeneration.

General Inquiries:info@fibrobiologics.com

Investor Relations:Nic JohnsonRusso Partners(212) 845-4242fibrobiologicsIR@russopr.com

Media Contact:Liz PhillipsRusso Partners(347) 956-7697Elizabeth.phillips@russopartnersllc.com

Frequently Asked Questions

What is CYWC628?

CYWC628 is a fibroblast-based therapy targeting diabetic foot ulcers.

When will the clinical trials for CYWC628 start?

The Phase 1/2 clinical trials for CYWC628 are planned for the first half of 2026.

What manufacturing standards did CYWC628 meet?

The CYWC628 drug product was manufactured in accordance with FDA's Good Manufacturing Practices.

What are the risks mentioned for CYWC628?

Risks include manufacturing challenges and the need for successful safety testing.

Last updated: Apr 1, 2026