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Bone Biologics CEO Issues Letter to Stockholders Highlighting Company Update and Outlook BURLINGTON, Mass. (

Key Takeaway: Bone Biologics Corporation (NASDAQ: BBLG) CEO Jeffrey Frelick issued a letter to stockholders detailing updates on the company's progress and outlook for their lead product, NB1. The letter highlights the anticipation of completing enrollment in a pivotal first-in-human clinical study, which is evaluating NB1's effectiveness in treating degenerative disc disease. Despite slower enrollment than expected, Frelick remains optimistic about NB1's potential to improve spinal fusion outcomes. The company also reported successful funding through a public offering and advancements in the product's shelf life.

Market Sentiment Analysis

POSITIVE FACTORS

  • CEO provided a progress report highlighting key milestones for NB1.
  • The potential increase in safety and improved fusion rates for spinal fusion patients.
  • Successfully raised $5 million in a public offering to fund operations.
  • Recent studies improved the shelf life of the protein to 18 months.

CONCERNS & RISKS

  • Clinical trial enrollment for NB1 has been slower than anticipated.
  • Risks associated with being an undercapitalized developing company.
  • Uncertainty regarding the success of the pilot clinical trial and market competition.

Full Press Release Details

Biologics CEO Issues Letter to Stockholders Highlighting Company Update and Outlook
Mass. (September 4, 2025) - Bone Biologics Corporation ("Bone Biologics" or the "Company") (NASDAQ:
BBLG, BBLGW), a developer of orthobiologic products for spine fusion markets, announces that President and Chief Executive Officer Jeffrey
Frelick has issued the following letter to stockholders.
My Fellow Stockholders:
am pleased to provide a progress report on Bone Biologics' development of NB1 and to review our expected milestones for the
coming year, including the anticipated completion of enrollment in our first-in-human study and an interim update. As a reminder, NB1 consists of the recombinant human protein NELL-1 (rhNELL-1) combined with demineralized bone
has several unique properties that suggest it will be ideal for treating spinal fusion, trauma, osteoporosis and other bone-related indications,
and may be especially useful among so-called "hard healers." This potential lies in its ability to provide rapid, specific
and guided control over bone regeneration. We are optimistic that NB1 may provide an important alternative to a vexing clinical problem
by improving the safety profile of an osteopromotive orthobiologic.
commenced our pilot clinical study with NB1 in Australia last year. This multicenter, prospective, randomized study is evaluating the
safety and preliminary effectiveness of NB1 bone graft in patients with degenerative disc disease who are undergoing transforaminal lumbar
study is assessing two concentrations of NB1 relative to autograft control in up to 30 subjects. The study's primary clinical endpoints
include fusion success at 12 and 24 months after surgery, and change from the baseline Oswestry Disability Index, which is the gold standard
tool to measure a patient's functional disability. While the clinical trial enrollment has been slower than anticipated, we do
expect to complete enrollment by end of the year.
studies conducted by third parties recently achieved an 18-month shelf life for our protein, representing an improvement from the prior
shelf life of 12 months. We also demonstrated improvement in the formulation of our protein that should enable compatibility with the
new, scaled semi-automated fill/finish process that will be required for our upcoming pivotal study.
June, we filed a U.S. patent application directed to the proprietary compositions of rhNELL-1 polypeptide and its uses for treating bone
conditions. The patent application, if approved, will support our strategic plan to advance our clinical development program.
expect to achieve a number of value-creating events in the coming year under our cost-efficient business model, including the following:
Adding additional hospital sites in Australia and completing enrollment in our pilot study by year-end.
Expanding our shelf life to 24 months from 18-months in preparation for increasing manufacturing scale for a pivotal study.
Developing a more robust potency assay to better measure NB1's biological activity.
Providing an interim update on the trial once all the patients have reached six-month follow up.
June 30th, we completed a public offering raising gross proceeds of $5 million. We expect our current cash position to fund
planned operations into the second quarter of 2026.
scientific basis for developing NB1 is the potential for increased safety and better fusion rates. Spine fusion is a common surgical
procedure in the treatment of numerous spinal diagnoses including degenerative disc disease, spinal stenosis, spondylolisthesis and other
spinal deformities. A bony fusion is essential for restoring segmental stability, preventing or correcting deformity and improving long-term
outcomes. Lumbar intervertebral fusion is achieved by creating an environment that's conducive to the formation of a continuous
osseous bridge across the involved spinal segments.
remain optimistic that spinal fusion patients will benefit from our solution for hard-to-heal bones, and we are very excited about the
potential to help these patients as we advance NB1 along the clinical and regulatory pathway. We believe our effort will be well-rewarded
not only by patients, but also by caregivers and Bone Biologics' stockholders.
extend thanks to all of our constituents for their ongoing support.
& Chief Executive Officer
Biologics was founded to pursue regenerative medicine for bone. The Company is undertaking work with select strategic partners that builds
on the preclinical research of the NELL-1 protein. Bone Biologics is focusing development efforts for its bone graft substitute product
on bone regeneration in spinal fusion procedures, while additionally having rights to trauma and osteoporosis applications. For more
information, please visit www.bonebiologics.com.
statements contained in this press release, including, without limitation, statements regarding the expected achievements for the year
2025, timing, implementation, and success of the Company's pilot clinical study, the ability of the Company's lead product
candidate NB1 to provide rapid, specific and guided control over bone regeneration and show fusion success in humans, the ability of
NB1 to compete in global markets, as well as statements containing the words "anticipate," "may," "believe,"
"should," "will," "expect," "potential," "outlook," and words of similar
import, constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.
Such forward-looking statements involve both known and unknown risks and uncertainties. The Company's actual results may differ
materially from those anticipated in its forward-looking statements as a result of a number of factors, including, but not limited to,
market and other conditions and risks generally associated with an undercapitalized developing company, as well as the risks contained
under "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations"
in the Company's Annual Report on Form 10-K for the year ended December 31, 2024 and the Company's other filings with the
Securities and Exchange Commission. Except as required by applicable law, we undertake no obligation to revise or update any forward-looking
statements to reflect any event or circumstance that may arise after the date hereof.

Frequently Asked Questions

What is NB1 developed by Bone Biologics?

NB1 combines recombinant human protein NELL-1 with demineralized bone for bone regeneration.

When will enrollment for the NB1 clinical study be completed?

Enrollment in the NB1 clinical study is expected to be completed by the end of this year.

What is the goal of the NB1 study in Australia?

The study evaluates the safety and effectiveness of NB1 bone graft in patients with degenerative disc disease.

How much did Bone Biologics raise in its recent public offering?

Bone Biologics raised gross proceeds of $5 million in its public offering completed on June 30th.

What is the expected shelf life of the NB1 protein?

The shelf life of the NB1 protein is now improved to 18 months, working towards 24 months.

Last updated: Sep 4, 2025