On March 31, 2025 OS Therapies (NYSE-A: OSTX) ("OS Therapies" or "the Company"), a clinical-stage immunotherapy and Antibody Drug Conjugate (ADC) biopharmaceutical company, reported a regulatory update for its OST-HER2 listeria monocytogenes (Lm) immunotherapeutic cancer biologic drug candidate in the prevention or delay of fully-resected, recurrent, lung metastatic osteosarcoma (Press release, OS Therapies, MAR 31, 2025, View Source [SID1234651701]).

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"We are making rapid progress in putting together an appropriate data package to achieve accelerated approval for OST-HER2 given the feedback we’ve received to date from the FDA," said Paul Romness, MHP, Chairman & CEO of OS Therapies. "We know one of the US government’s stated priorities is to treat deadly childhood cancers, and we believe that OST-HER2 for osteosarcoma aligns well with that mission."

Regulatory Timelines

The Company initiated regulatory correspondence with the US Food & Drug Administration (FDA) and the United Kingdom’s Medicines and Healthcare products Regulatory Agency (MHRA) in the first quarter of 2025. The Company intends to initiate regulatory interaction with the European Medicines Agency (EMA) and EMA National Competent Authorities in the second quarter of 2025.

FDA

Q1/25: Regulatory communication regarding endpoints for accelerated approval
Q2/25: End of Phase 2 Meeting
Q3/25: Initiation of rolling BLA submission
Q4/25: Conditional BLA via Accelerated Approval Program
MHRA

Q1/25: Scientific Advice Meeting requested and granted
Q3/25: Scientific Advice Meeting with MHRA and ILAP application submission
Q4/25: Application for joint Scientific Advice Meeting with MHRA and National Institute for Health and Care Excellence (NICE)
Q4 25: MHRA Conditional Marketing Authorisation application.
EMA

Q2/25: EMA National Competent Authority Scientific Advice Meeting Request (Medicines Evaluation Board, Netherlands)
Q3/25: EMA PRIME and EMA Orphan Designation applications
Q4/25: EMA-FDA Parallel Scientific Advice application
Q1 26: EMA Conditional Marketing Authorisation application.
The Company has recently buttressed its regulatory and clinical strategy & operations infrastructure with the addition of key consulting agencies with significant track records in rare pediatric cancer, Priority Review Voucher (PRV) program approvals, and worldwide Conditional Market Access Applications including in the EU and UK.

The Company reiterates its commitment to seeking to obtain FDA approval for OST-HER2 in the rare pediatric cancer osteosarcoma in 2025. The Company is eligible to receive a Priority Review Voucher (PRV) if OST-HER2 is approved under its Rare Pediatric Disease Designation (RPDD) by September 30, 2026.

The Company has sufficient cash on hand to operate into 2026.

Potential Treatment Response Biomarkers from Canine Osteosarcoma Program

The Company’s canine osteosarcoma program recently made significant progress in understanding which biomarkers likely drive anti-tumor activity in prevention of recurrence of metastases, metastasis treatment (lung resection is not standard of care in canines) and primary tumor treatment to achieve limb sparing in dogs. The data generated creates the potential for the eventual expansion of the uses of OST-HER2 in osteosarcoma into treatment of unresectable lung metastases and limb sparing prior to surgical resection.

The Company intends to evaluate these biomarkers as potentially predictive of treatment response in humans in preparation for regulatory discussions with FDA, MHRA and EMA. Canine equivalent biomarkers have previously been used as surrogate endpoints for rare diseases in Comparative Oncology, which is the study of diseases that occur in humans and animals and have significant genetic homology. Human and Canine osteosarcoma have 96% genetic homology.

The Company is preparing to initiate regulatory correspondence with the United States Department of Agriculture (USDA) with the Company’s updated manufacturing process which incorporates key improvements covered under a patent that was recently granted a notice of allowance by the United States Patent & Trademark Office (USPTO).

Shelter Me is a film that was produced to highlight the important role of human and canine Comparative Oncology disease research. The movie will premiere on April 3, 2025 at AMC Century City in Los Angeles and will later be available to stream through the PBS app and on PBS.org.

On March 31, 2025 Celcuity Inc. (Nasdaq: CELC), a clinical-stage biotechnology company pursuing development of targeted therapies for oncology, reported financial results for the fourth quarter ended December 31, 2024 and other recent business developments (Press release, Celcuity, MAR 31, 2025, View Source [SID1234651664]).

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"We expect 2025 to be a transformational year for Celcuity as we anticipate reporting several clinical data readouts, including primary analysis for the PIK3CA wild-type cohort of the VIKTORIA-1 trial. We expect to share topline data in Q2 2025," said Brian Sullivan, CEO and co-founder of Celcuity. "In addition, we anticipate reporting topline data for the Phase 1b/2 trial in metastatic castration resistant prostate cancer in late Q2 2025, and topline data for the PIK3CA mutant-type cohort of the VIKTORIA-1 trial in Q4 2025. We also remain on track to enroll the first patient for our VIKTORIA-2 Phase 3 trial in Q2 2025."

Fourth Quarter 2024 Business Highlights and Other Recent Developments

● The VIKTORIA-1 Phase 3 clinical trial evaluating gedatolisib in combination with fulvestrant with and without palbociclib in adults with HR+, HER2- advanced breast cancer who have received prior treatment with a CDK4/6 inhibitor is 100% enrolled for the PIK3CA wild-type cohort. We expect to provide topline data in Q2 2025.

○ Enrollment for the PIK3CA mutant cohort remains on track and topline data is expected in Q4 of 2025.

● The VIKTORIA-2 Phase 3 open-label randomized study evaluating the efficacy and safety of gedatolisib in combination with fulvestrant plus a CDK4/6 inhibitor, either ribociclib or palbociclib, in comparison to fulvestrant plus a CDK4/6 inhibitor as a first-line treatment for patients with HR+/HER2- advanced breast cancer who are endocrine therapy resistant remains on track to enroll its first patient in Q2 2025.

○ A safety run-in study preceding the initiation of the Phase 3 portion of the study will be conducted in 12-36 participants to assess the safety profile of gedatolisib in combination with ribociclib and fulvestrant.
○ Site selection activities are completed. We expect to activate approximately 200 sites across North America, Europe, Latin America, and Asia-Pacific.
○ The Phase 3 portion of the study is expected to enroll approximately 638 patients.

● The Phase 1b/2 clinical trial, evaluating gedatolisib in combination with darolutamide for the treatment of patients with metastatic castration resistant prostate cancer ("mCRPC"), is ongoing and remains on track to report preliminary data in late Q2 2025.

○ The study is expected to enroll up to 54 patients with mCRPC whose disease progressed while on or after treatment with an androgen receptor signaling inhibitor.

● In December 2024, Celcuity presented overall survival data from a Phase 1b trial, which evaluated gedatolisib in combination with palbociclib and either letrozole or fulvestrant, in patients with HR+, HER2- advanced or metastatic breast cancer during a poster session at the 2024 San Antonio Breast Cancer Symposium (SABCS). Median overall survival was 77.3 months among patients with HR+, HER2- advanced breast cancer who were treatment-naïve in the advanced setting and 33.9 months among patients previously treated with a CDK4/6 inhibitor.

○ Results compare favorably to published data for currently available first- or second-line standard-of-care treatment regimens for patients with HR+, HER2- advanced breast cancer and highlight the promising clinical development strategy of simultaneously inhibiting the ER, CDK4/6, and PAM (PI3K/AKT/mTOR) signaling pathways.

Fourth Quarter and Full Year 2024 Financial Results

Unless otherwise stated, all comparisons are for the fourth quarter and full year ended December 31, 2024, compared to the fourth quarter and full year ended December 31, 2023.

Total operating expenses were $36.4 million for the fourth quarter of 2024, compared to $19.7 million for the fourth quarter of 2023. Operating expenses for the full year 2024 were $113.3 million, compared to $66.2 million for the full year 2023.

Research and development ("R&D") expenses were $33.5 million for the fourth quarter of 2024, compared to $18.1 million for the prior-year period. Of the approximately $15.4 million increase in R&D expenses, $9.9 million primarily related to costs supporting ongoing activities for the VIKTORIA-1 Phase 3 trial and the CELC-G-201 Phase 1b/2 trial, along with the commencement of the VIKTORIA-2 Phase 3 trial. The remaining $5.5 million primarily relates to increased employee and consulting expenses.

R&D expenses for the full year 2024 were $104.2 million, compared to $60.6 million for the prior year. Of the approximately $43.6 million increase in R&D expenses, $30.7 million was related to costs supporting ongoing activities for the VIKTORIA-1 Phase 3 trial and the CELC-G-201 Phase 1b/2 clinical trial, along with the commencement of the VIKTORIA-2 Phase 3 trial. The remaining $12.9 million increase in R&D expenses was primarily related to increased employee and consulting expenses.

General and administrative ("G&A") expenses were $3.0 million for the fourth quarter of 2024, compared to $1.6 million for the prior year period. Of the approximately $1.4 million increase, $1.1 million was related to increased employee-related expenses, and $0.3 million was related to professional fees, expanding infrastructure costs and other administrative expenses.

G&A expenses for the full year 2024 were $9.1 million, compared to $5.6 million for the prior year. Of the approximately $3.4 million increase in G&A expenses, $2.6 million was related to increased employee-related expenses, and $0.8 million was related to professional fees, expanding infrastructure costs, and other administrative expenses.

Net loss for the fourth quarter of 2024 was $36.7 million, or $0.85 loss per share, compared to a net loss of $18.8 million, or $0.65 loss per share, for the fourth quarter of 2023. Net loss for the full year 2024 was $111.8 million, or $2.83 loss per share, compared to a net loss of $63.8 million, or $2.69 loss per share, in 2023. Non-GAAP adjusted net loss for the fourth quarter of 2024 was $32.3 million, or $0.75 loss per share, compared to non-GAAP adjusted net loss of $17.6 million, or $0.61 loss per share, for the fourth quarter of 2023. Non-GAAP adjusted net loss for the full year 2024 was $101.9 million, or $2.58 loss per share, compared to non-GAAP adjusted net loss of $57.8 million, or $2.44 loss per share, for 2023. Non-GAAP adjusted net loss excludes stock-based compensation expense, non-cash interest expense, and non-cash interest income. Because these items have no impact on Celcuity’s cash position, management believes non-GAAP adjusted net loss better enables Celcuity to focus on cash used in operations. For a reconciliation of financial measures calculated in accordance with generally accepted accounting principles in the United States ("GAAP") to non-GAAP financial measures, please see the financial tables at the end of this press release.

Net cash used in operating activities for the fourth quarter of 2024 was $27.8 million, compared to $18.5 million for the fourth quarter of 2023. Net cash used in operating activities for the full year 2024 was $83.5 million, compared to $53.8 million for the full year 2023. Cash, cash equivalents and short-term investments were approximately $235.1 million at the end of fiscal year 2024 and are expected to fund current clinical development program activities through 2026.

Webcast and Conference Call Information

The Celcuity management team will host a webcast/conference call at 4:30 p.m. ET today to discuss the fourth quarter and full year 2024 financial results and provide a corporate update. To participate in the teleconference, domestic callers should dial 1-800-717-1738 and international callers should dial 1-646-307-1865. A live webcast presentation can also be accessed using this weblink: View Source;tp_key=f99d4186f3. A replay of the webcast will be available on the Celcuity website following the live event.

On March 31, 2025 ORIC Pharmaceuticals, Inc. (Nasdaq: ORIC), a clinical stage oncology company focused on developing treatments that address mechanisms of therapeutic resistance, reported that management will participate in the following investor conferences in April (Press release, ORIC Pharmaceuticals, MAR 31, 2025, View Source [SID1234651683]):

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Needham’s 24th Annual Healthcare Conference – Presenting a company overview on Monday, April 7, 2025, at 1:30 p.m. ET
Stifel 2025 Virtual Targeted Oncology Forum – Participating in a fireside chat on Wednesday, April 9, 2025, at 2:00 p.m. ET
Webcasts of the presentation and discussion will be available through the investor section of the company’s website at www.oricpharma.com. Replays of the webcasts will be available for 90 days following the event.

On March 31, 2025 Adicet Bio, Inc. (Nasdaq: ACET), a clinical stage biotechnology company discovering and developing allogeneic gamma delta T cell therapies for autoimmune diseases and cancer, reported that Chen Schor, President and Chief Executive Officer, will participate in a panel at the Canaccord Genuity Horizons in Oncology Virtual Conference being held April 7, 2025 (Press release, Adicet Bio, MAR 31, 2025, View Source [SID1234651702]).

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Details of the event are as follows:
Panel: "CAR T Approaches in the Autoimmune Space"
Date: Monday, April 7, 2025
Time: 3:00 p.m. ET

On March 31, 2025 Swedish Orphan Biovitrum reported its annual report for the year 2024 (Presentation, Swedish Orphan Biovitrum, MAR 31, 2025, View Source [SID1234652119]).

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