On November 14, 2025 Mersana Therapeutics, Inc. (NASDAQ: MRSN), a clinical-stage biopharmaceutical company focused on the development of antibody-drug conjugates (ADCs) targeting cancers in areas of high unmet medical need, reported a business update and announced financial results for the third quarter ended September 30, 2025.

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Acquisition by Day One Biopharmaceuticals, Inc.

Yesterday, Mersana announced that it has entered into a definitive merger agreement with Day One Biopharmaceutics, Inc. (Day One), pursuant to which Day One would acquire Mersana, through a tender offer followed by a second step merger, for upfront consideration of $25.00 per share in cash plus up to an aggregate of $30.25 per share in cash potentially payable under contingent value rights (CVRs) triggered upon the achievement of certain clinical development, regulatory and commercial milestones related to Emi-Le, the company’s B7-H4-directed Dolasynthen ADC, and upon the achievement of a certain milestone pursuant to an existing Mersana collaboration to be issued in the proposed acquisition, representing a total equity value of approximately $129 million at closing and representing a total deal value of up to approximately $285 million. Closing of the transaction is subject to the satisfaction of customary closing conditions, including that a majority of Mersana’s shares of common stock are validly tendered in the tender offer and not validly withdrawn and the receipt of certain U.S. regulatory approvals, and is expected to occur by the end of January 2026.

Emiltatug Ledadotin (Emi-Le; XMT-1660)
In the ongoing Phase 1 clinical trial of Emi-Le, Mersana continues to follow patients in its two dose expansion cohorts in patients with triple-negative breast cancer, or TNBC, who have received one to four prior treatment lines in the locally advanced or metastatic setting, including at least one prior topoisomerase-1 inhibitor ADC.

Mersana is also evaluating Emi-Le in patients with adenoid cystic carcinoma type 1 (ACC-1), a population with very high unmet need, in the backfill cohorts of the dose escalation portion of the ongoing Phase 1 clinical trial. In June 2025, at ASCO (Free ASCO Whitepaper), Mersana presented interim clinical data from nine evaluable patients with ACC-1. As of October 1, 2025, Mersana has enrolled a substantially greater number of ACC-1 patients in these backfill cohorts than was presented at ASCO (Free ASCO Whitepaper). The data from ACC-1 patients enrolled in this trial continues to mature as Mersana enrolls additional patients and patients remain on treatment for longer periods. Mersana has continued to be encouraged by the responses of the patients in these backfill cohorts.

Emi-Le continues to be generally well-tolerated, and its observed safety profile remains consistent with previously disclosed data.

XMT-2056
Mersana’s Phase 1 clinical trial of XMT-2056, the company’s lead Immunosynthen ADC candidate targeting a novel HER2 epitope, is ongoing. In the third quarter of 2025, Mersana achieved and received a $15 million development milestone under its agreement with GSK plc (GSK), which has an exclusive global license option to co-develop and commercialize XMT-2056.

Collaborations
Mersana continues to support its collaborations with both Janssen Biotech, Inc. (Johnson & Johnson, Dolasynthen research collaboration) and Merck KGaA, Darmstadt, Germany (Immunosynthen research collaboration).

In the third quarter of 2025, Johnson & Johnson received clearance from the U.S. Food and Drug Administration (FDA) of an investigational new drug application for a Dolasynthen ADC developed under Mersana’s 2022 collaboration and license agreement with Johnson & Johnson. An $8.0 million development milestone is associated with the further progress of this first-in-human clinical trial pursuant to the agreement with Johnson & Johnson.

Third Quarter 2025 Financial Results and Recent Updates

Net cash used in operating activities for the third quarter of 2025 was $3.2 million, which reflects the impact of the $15 million GSK development milestone payment received.
Cash and cash equivalents as of September 30, 2025 were $56.4 million. The company continues to expect that its capital resources will be sufficient to support its current operating plan commitments into mid-2026.
Collaboration revenue for the third quarter of 2025 was $11.0 million, compared to $12.6 million for the same period in 2024. The year-over-year change was primarily related to decreased revenue recognized under the company’s collaboration and license agreements with Johnson & Johnson and Merck KGaA, Darmstadt, Germany, partially offset by increased revenue recognized under its agreement with GSK.
Research and development (R&D) expense for the third quarter of 2025 was $12.2 million, compared to $14.8 million for the same period in 2024. Included in the third quarter of 2025 R&D expense was $0.5 million in non-cash stock-based compensation expense. The year-over-year change in R&D expense was primarily related to lower headcount and related employee compensation costs, partially offset by an increase in costs related to Emi-Le and XMT-2056 clinical development activities.
General and administrative (G&A) expense for the third quarter of 2025 was $6.3 million, compared to $9.9 million during the same period in 2024. Included in the third quarter of 2025 G&A expense was $0.6 million in non-cash stock-based compensation expenses. The year-over-year change in G&A expense was primarily related to lower headcount and related employee compensation costs and a reduction in consulting and professional services fees.
Net loss for the third quarter of 2025 was $7.5 million, or $1.51 per share, compared to a net loss of $11.5 million, or $2.34 per share, for the same period in 2024.
Conference Call
Mersana’s previously scheduled conference call to discuss business updates and its financial results for the third quarter of 2025 has been cancelled.

(Press release, Mersana Therapeutics, NOV 14, 2025, View Source [SID1234659975])

On November 14, 2025 Marker Therapeutics, Inc. (Nasdaq: MRKR), a clinical-stage immuno-oncology company developing next-generation T cell-based therapies, reported corporate updates and financial results for the third quarter ended September 30, 2025.

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"Marker entered the second half of 2025 with strong clinical momentum as we continue to advance our lead program, MT-601, in patients with relapsed or refractory B-cell lymphoma," said Juan Vera, M.D., President and Chief Executive Officer of Marker Therapeutics. "The most recent update from our Phase 1 APOLLO study showed a 66% objective response rate including 50% complete responses, in heavily pre-treated NHL patients. These data, together with a favorable safety profile, reinforce the potential of MT-601 to meet the critical needs of patients who have exhausted multiple lines of therapy, including CAR-T cell therapies and bispecific antibodies. We’re encouraged by the durability of responses and plan to share an additional update in the first half of 2026."

Dr. Vera continued, "We also achieved a number of key milestones in this quarter, including treating the first patient in our Off-the-Shelf (OTS) program and entering a strategic manufacturing collaboration with Cellipont to scale up production of MT-601. In parallel, we have strengthened our balance sheet by raising approximately $10 million through our ATM facility, extending our cash runway well into 2026. Looking ahead, we are focused on enrolling patients in the MT-601 dose expansion cohort to build on our promising observations from our APOLLO study. Having executed on the priorities we set at the beginning of the year we are entering the final stretch of 2025 with strong operational footing and a clear clinical focus."

PROGRAM UPDATES & OPERATIONAL HIGHLIGHTS

MT-601 (Lymphoma)

· Positive clinical data from the Phase 1 APOLLO study (clinicaltrials.gov identifier: NCT05798897) showed a 66% (8 out of 12) objective response rate and 50% (6 out of 12) complete response rate in relapsed NHL patients, including those previously treated with CAR-T cell therapies and bispecific antibodies (Press Release, August 26, 2025).

· Responses were durable with five NHL patients maintaining response for ≥6 months, including three with ≥12 months (range 3-24 months).

· Favorable safety profile with no dose-limiting toxicities (DLTs) or immune effector cell–associated neurotoxicity (ICANS) observed at any dose level in the dose escalation cohort.

· Dose expansion cohort underway, evaluating MT-601 at highest dose level (400×106 cells) in patients with Diffuse Large B Cell Lymphoma (DLBCL) who have relapsed after or are ineligible for CAR-T cell therapy.

· Additional clinical data are expected in the first half of 2026.

MT-601 (Pancreatic Cancer)

· Marker was previously awarded $2.0 million from the NIH and $9.5 million from the Cancer Prevention and Research Institute of Texas (CPRIT) to support the development of MT-601 in metastatic pancreatic cancer.

· Clinical program launch is anticipated in the first half of 2026.

Off-the-Shelf Program (Acute Myeloid Leukemia or Myelodysplastic Syndrome)

· Marker announced first patient treated in Phase 1 RAPID study (clinicaltrials.gov Identifier: NCT06552416) evaluating MT-401 as an Off-the-Shelf (OTS) product (Press Release, October 6, 2025).

· Treatment with MT-401-OTS was well tolerated, consistent with the favorable safety profile previously reported for MAR-T cells.

· The OTS program is investigating MAR-T cells in Acute Myeloid Leukemia (AML) or Myelodysplastic Syndrome (MDS) with the potential for future expansion to other indications.

· The Company previously secured non-dilutive funding from NIH, FDA and CPRIT to support the OTS program.

Corporate Updates

· Marker entered a current good manufacturing practice (cGMP) manufacturing agreement with Cellipont Bioservices to scale up the production of MT-601 for the APOLLO study. This partnership supports clinical supply and lays the ground for a potential pivotal trial and commercial readiness (Press Release, June 17, 2025).

· Data from the Phase 1 APOLLO study will be presented in two posters at the 67th ASH (Free ASH Whitepaper) Annual Meeting and Exposition, held from December 6-9, 2025, in Orlando, Florida (Press Release, November 3, 2025).

· Appointed Kathryn Penkus Corzo, R.Ph., MBA to the Company’s Board of Directors, effective November 1, 2025 (Press Release, November 5, 2025).

· Marker raised approximately $10 million through its ATM Agreement, extending the Company’s runway well into 2026.

THIRD QUARTER 2025 FINANCIAL HIGHLIGHTS

Cash Position and Guidance: At September 30, 2025, Marker had cash and cash equivalents of $17.6 million and restricted cash of $1.4 million. The Company believes that its existing cash, cash equivalents and restricted cash will fund its operating expenses through the third quarter of 2026, assuming no additional grant funds are received, either from new grants or from existing awarded grants.

R&D Expenses: Research and development expenses were $2.3 million for the quarter ended September 30, 2025, compared to $3.5 million for the quarter ended September 30, 2024.

G&A Expenses: General and administrative expenses were $1 million for the quarter ended September 30, 2025, compared to $0.9 million for the quarter ended September 30, 2024.

Net Loss: Marker reported a net loss from continuing operations of $2.0 million for the quarter ended September 30, 2025, compared to $2.3 million for the quarter ended September 30, 2024.

About MAR-T cells

The multi-antigen recognizing (MAR) T cell platform (formerly known as multiTAA-specific T cells) is a novel, non-genetically modified cell therapy approach that selectively expands tumor-specific T cells from a patient’s/donor’s blood capable of recognizing a broad range of tumor antigens. Unlike other T cell therapies, MAR-T cells allow the recognition of hundreds of different epitopes within up to six tumor-specific antigens, thereby reducing the possibility of tumor escape. Since MAR-T cells are not genetically engineered, Marker believes that its product candidates will be easier and less expensive to manufacture, with an improved safety profile compared to current engineered T cell approaches and may provide patients with meaningful clinical benefits.

(Press release, Marker Therapeutics, NOV 14, 2025, View Source [SID1234659974])

On November 14, 2025 IO Biotech (Nasdaq: IOBT), a clinical-stage biopharmaceutical company developing novel, immune-modulatory, off-the-shelf therapeutic cancer vaccines, reported financial results for the third quarter of 2025 and recent business highlights.

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"We remain keenly focused on our mission to develop novel, immune-modulatory, off-the-shelf cancer therapies for the treatment of multiple types of tumors including melanoma, lung, and head and neck cancer," said Mai-Britt Zocca, PhD, President and CEO of IO Biotech. "Although the IOB-013 study narrowly missed statistical significance on the primary PFS endpoint, the results of the study support the mechanism of action of our therapeutic cancer vaccines and, we believe, have significantly de-risked the program. We look forward to discussing the next Phase 3 study design for Cylembio with the FDA in December and remain committed to bringing Cylembio to cancer patients seeking alternative treatment options as quickly as possible."

Recent Business Highlights

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The company presented topline results of its Phase 3 pivotal trial (IOB-013/KN-D18) evaluating the company’s lead investigational vaccine, Cylembio (imsapepimut and etimupepimut, adjuvanted), in combination with Merck’s anti-PD-1 therapy KEYTRUDA (pembrolizumab) for the treatment of advanced melanoma in an oral presentation at the 2025 European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) congress. The trial evaluated Cylembio in combination with pembrolizumab vs. pembrolizumab alone as a first-line treatment in 407 patients with unresectable or metastatic (advanced) melanoma. In the study, Cylembio plus pembrolizumab demonstrated a clinically relevant improvement in progression free survival (PFS) compared to pembrolizumab alone, which was also observed in virtually all subgroups, but the trial narrowly missed statistical significance.

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The company has a meeting with the United States (US) Food and Drug Administration (FDA) scheduled in December to align on the design of a potential new Phase 3 registrational trial for the treatment of advanced melanoma.

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The company also presented a poster at ESMO (Free ESMO Whitepaper) of final data from the Phase 2 basket trial (IOB-022/KN-D38) of IO102-IO103 plus pembrolizumab for 1L treatment of advanced non-small cell lung cancer (NSCLC) and recurrent/metastatic squamous cell carcinoma of head and neck (SCCHN) highlighting encouraging landmark PFS and overall survival (OS) rates.

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The company presented two posters at the SITC (Free SITC Whitepaper) annual meeting with pre-clinical data for two additional T-win vaccine candidates. Data presented in a poster for its next therapeutic vaccine candidate expected to enter clinical development, IO112 targeting arginase 1, demonstrated anti-tumor activity with dynamic changes in the tumor microenvironment (TME) driven by the vaccine-targeted modulation of immunosuppressive myeloid cells, including tumor-associated macrophages (TAMs). Data presented in the poster for an additional candidate, IO170 targeting Transforming Growth Factor (TGF)-ß, demonstrated induction of immune responses that could inhibit tumor growth and reduce lung metastasis.

Investor Conferences Participation

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Jefferies Global Healthcare Conference in London: Mai-Britt Zocca, PhD, President and CEO, will give a company presentation beginning at 3:00 PM GMT on November 18, 2025.

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Piper Sandler 37th Annual Piper Sandler Healthcare Conference: Mai-Britt Zocca, PhD, President and CEO, and Amy Sullivan, CFO, will participate in a fireside chat beginning at 3:00 PM ET on December 3, 2025.

The webcasts for these two upcoming conferences will be available from the Investors section of the company’s website at View Source

Third Quarter 2025 Financial Results

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Total operating expenses for the three months ended September 30, 2025, were $19.4 million, compared to $26.5 million for the three months ended September 30, 2024.

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Research and development expenses were $13.7 million for the three months ended September 30, 2025, compared to $20.2 million for the three months ended September 30, 2024. The company recognized $0.6 million in research and development equity-based compensation for the three months ended September 30, 2025 and 2024, respectively.

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General and administrative expenses were $5.6 million for the three months ended September 30, 2025, compared to $6.3 million for the three months ended September 30, 2024. The company recognized $0.9 million in general and administrative equity-based compensation for the three months ended September 30, 2025 and $1.0 million for the three months ended September 30, 2024.

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Cash and cash equivalents as of September 30, 2025 were $30.7 million, compared to $60.0 million at December 31, 2024. During the three months ended September 30, 2025, the company increased cash, cash equivalents and restricted cash by $2.5 million primarily due to the draw down of €12.5 million in gross proceeds from our Tranche B loan with the European Investment Bank on July 4, 2025 and net proceeds of $6.6 million from the issuance of common stock in connection with our at-the-market program. The company now expects that it will have sufficient cash to run the company through the first quarter of 2026.

About Cylembio

Cylembio (imsapepimut and etimupepimut, adjuvanted) is an investigational, immune-modulatory, off-the-shelf therapeutic cancer vaccine candidate designed to kill both tumor cells and immune-suppressive cells in the tumor microenvironment (TME) by stimulating activation and expansion of T cells against indoleamine 2,3-dioxygenase 1 (IDO1) positive and/or programmed death-ligand 1 (PD-L1) positive cells. The company is currently conducting a pivotal Phase 3 trial (IOB-013/KN-D18; NCT05155254) investigating Cylembio in combination with Merck’s anti-PD-1 therapy, KEYTRUDA (pembrolizumab) versus pembrolizumab alone in patients with advanced melanoma, a Phase 2 basket trial (IOB-022/KN-D38; NCT05077709) investigating Cylembio in combination with pembrolizumab as first line treatment in patients with advanced solid tumors, and a Phase 2 basket trial (IOB-032/PN-E40; NCT05280314) investigating Cylembio in combination with pembrolizumab as neo- adjuvant/adjuvant treatment of patients with solid tumors. Enrollment in the Phase 3 trial was completed rapidly by December 2023 with topline results from this trial reported in the third quarter of 2025. Enrollment in the two ongoing company-sponsored Phase 2 clinical trials is now complete.

The clinical trials are sponsored by IO Biotech and conducted in collaboration with Merck, which is supplying pembrolizumab. IO Biotech maintains global commercial rights to Cylembio.

Cylembio is a registered trademark of IO Biotech ApS, a subsidiary of IO Biotech.

KEYTRUDA is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada).

About the IOB-013/KN-D18 Pivotal Phase 3 Clinical Trial

IOB-013/KN-D18 (ClinicalTrials.gov: NCT05155254) is an open label, randomized Phase 3 pivotal clinical trial evaluating Cylembio in combination with Merck’s anti-PD-1 therapy, KEYTRUDA (pembrolizumab) versus pembrolizumab alone in patients with previously untreated, unresectable or metastatic (advanced) melanoma. Enrollment in the trial was completed by December 2023 with a total of 407 patients enrolled from more than 100 centers across the United States, Europe, Australia, Turkey, Israel and South Africa. The primary endpoint of the study was progression-free survival. Secondary endpoints include overall response rate, overall survival, durable objective response rate, complete response rate, duration of response, time to complete response, disease control rate, and incidence of adverse events and serious adverse events (safety and tolerability). Biomarkers in the blood and tumor tissue will also be assessed as exploratory endpoints. The company reported topline results from this trial in the third quarter of 2025. IO Biotech is sponsoring the Phase 3 trial and Merck is supplying pembrolizumab.

About IOB-022/KN-D38 Phase 2 Solid Tumor Basket Trial

IOB-022/KN-D38 (NCT05077709) is a non-comparative, open label trial to investigate the safety and efficacy of Cylembio in combination with Merck’s anti-PD-1 therapy, KEYTRUDA (pembrolizumab) in the first-line treatment of metastatic non-small cell lung cancer (NSCLC) or recurrent/metastatic squamous cell carcinoma of the head and neck (SCCHN) at sites in the United States, Spain, and the United Kingdom. IO Biotech is sponsoring the Phase 2 trial and Merck is supplying pembrolizumab.

(Press release, IO Biotech, NOV 14, 2025, View Source [SID1234659972])

On November 14, 2025 HCW Biologics Inc. (the "Company" or "HCW Biologics") (NASDAQ: HCWB), a clinical-stage biopharmaceutical company focused on discovering and developing novel immunotherapies to lengthen healthspan by disrupting the link between inflammation and diseases, reported financial results and recent business highlights for its three months ended September 30, 2025.

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The Company anticipates dosing the first patient in a Phase 1 clinical study (NCT07049328) to evaluate HCW9302 in patients with an autoimmune disease in the fourth quarter of 2025. HCW9302 is the Company’s lead product candidate for its clinical program to develop treatments for autoimmune diseases and inflammatory conditions. HCW9302 is a subcutaneously injectable, first-in-kind interleukin 2 ("IL-2") fusion molecule constructed using the Company’s legacy TOBITM platform technology. IL-2, the active component of HCW9302, is the cytokine in humans and other vertebrates responsible for maintaining the proper numbers and functions of regulatory T ("Treg") cells in the body. Treg cells control excessive inflammation caused by other immune cells, which is the etiology of autoimmune diseases. The breakthrough discovery of the critical function of Treg cells by Drs. Mary E. Brunkow, Fred Ramsdell and Shimon Sakaguchi was recently acknowledged with the 2025 Nobel Prize in Physiology or Medicine for their groundbreaking work concerning Treg cells, which discovery was that these cells are the immune system’s security guards which prevent immune cells from attacking our own body.

Dr. Hing C. Wong, the Company’s Founder and Chief Executive Officer said, "The goal of our Phase 1 clinical study for HCW9302 is to establish the safe dose that effectively increases Treg cell activity in patients with an autoimmune disease. Once we achieve this objective, we hope to rapidly expand clinical development of HCW9302 in Phase 2 studies in patients with alopecia areata as well as other autoimmune diseases and inflammatory conditions."

Business Highlights

Business Development Transactions

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The Company has launched its search for a strong commercial partner for the clinical development of its T-cell engager ("TCE") compounds. These compounds are designed to address shortfalls in the first generation products. The Company has created TCE compounds that can target cancer antigens and CD3 activation of effector T cells while simultaneously reducing the immunosuppression in tumor microenvironment. Such immunosuppression could play a pivotal role in reducing effector T-cell infiltration and anti-tumor efficacy in solid tumors.

Financing Transactions

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During the three months ended September 30, 2025, the Company issued 475,000 shares of Common Stock for gross proceeds of $2.2 million utilizing the Company’s Standby Equity Purchase Agreement.

Preclinical and Clinical Development Results

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The Company has successfully opened two clinical sites that are actively screening patients to participate in a first-in-human Phase 1 dose escalation clinical trial to evaluate one of its lead drug candidates, HCW9302, in patients with alopecia areata. The Company expects to dose the first patient in this clinical trial in the fourth quarter of 2025. Alopecia areata is a common autoimmune disease in humans that currently has no curative FDA approved treatments. It causes sudden hair loss and can have a significant negative impact on patients’ quality of life and psychological health. The National Alopecia Areata Foundation estimates approximately 160 million people worldwide and 7 million people in the United States have alopecia areata. The condition affects about 2% of the global population at some point in their lifetime.
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HCW Biologics showcased data for its lead engager HCW11-018b highlighting the uniqueness and advantages of the Company’s second-generation TCE program over the first-generation products at SITC (Free SITC Whitepaper). HCW11-018b is a tetra-valent construct that activates tumor-infiltrated exhausted T cells while addressing the immunosuppressive tumor microenvironment. It has broad coverage for human solid tumor indications by targeting tissue factor, with high potency and precision, shown in xenograft models including the Patient-Derived Xenograft (PDX) tumor model.

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HCW Biologics also presented data for its lead product candidate in the Company’s second-generation immune checkpoint inhibitor program at SITC (Free SITC Whitepaper). HCW11-040 is a proprietary TRBC-pembrolizumab-based immune checkpoint inhibitor, which the Company considers as its franchise immunotherapeutic compound for internal clinical development. It is a unique combination of cytokines in multi-functional fusion protein molecule that exhibits the ability to expand progenitor exhausted T cells, or TPEX cells, without inducing a cytokine storm in preclinical studies. TPEX cells, located in the draining lymph nodes and tumors of the patients, have been implicated as the primary responders to ICI therapy. HCW11-040 in undergoing IND-enabling studies to prepare for clinical trials for evaluation in the treatment of solid tumors.

Third Quarter 2025 Financial Results

Revenues: Revenues for the three months ended September 30, 2024 and 2025 were $426,423 and $15,606, respectively. Revenues for the nine months ended September 30, 2024 and 2025 were $2.2 million and $27,222, respectively. Historically, revenues have been derived exclusively from the sale of licensed molecules to the Company’s licensee, Wugen. In the nine months ended September 30, 2025, the Company agreed to a one-year suspension of the Wugen License Agreement.

Research and development (R&D) expenses: R&D expenses for the three months ended September 30, 2024 and 2025 were $1.2 million and $1.4 million, respectively, an increase of $271,334, or 18%. R&D expenses for the nine months ended September 30, 2024 and 2025 were $5.3 million and $4.1 million, respectively, a decrease of $1.2 million, or 23%. R&D expenses in the nine months ended September 30, 2024 were comparatively higher than the same period in 2025 due to expenses incurred for the manufacture of a high-expressing line of HCW9101, an element needed in the manufacture of HCW9302, the Company’s clinical-stage molecule. Such activities were completed in 2024.

General and administrative (G&A) expenses: G&A expenses for the three months ended September 30, 2024 and 2025 were $1.6 million and $1.9 million, respectively, an increase of $251,537, or 15%. G&A expenses for the nine months ended September 30, 2024 and 2025 were $4.8 million and $6.2 million, respectively, an increase of $1.4 million, or 29%. The increase in G&A expenses in 2025 was primarily due to salaries and benefits and professional fees related to audit services, tax and other advisory services, as well as required activities to remain in compliance with SEC regulations and Nasdaq listing rules.

Legal expenses (recoveries), net: Legal expenses and recoveries, net represent the legal fees that the Company incurred for an Arbitration which held its hearing in May 2024, was settled on July 13, 2024, and was dismissed on December 24, 2024. Legal expenses (recoveries), net for the three months ended September 30, 2024 and 2025 were $1.0 million and $6,006, respectively. Legal expenses (recoveries), net for the nine months ended September 30,2024 and 2025 were $15.8 million and a contra expense of ($1.6) million, respectively. In January 2025, the Company received a $2.0 million insurance reimbursement that was paid directly to the law firm involved in representing Dr. Hing C. Wong, the Company’s Founder and Chief Executive Officer, in the Arbitration. The Company is engaged in discussions with the law firms involved with this matter to arrange a reasonable payment plan with respect to $12.1 million legal fees which remain unpaid.

Net loss: Net loss for the three months ended September 30, 2024 and 2025 was $3.9 million and $4.6 million, respectively. Net loss for the nine months ended September 30, 2024 and 2025 was $26.7 million and $8.7 million, respectively.

(Press release, HCW Biologics, NOV 14, 2025, View Source [SID1234659970])

On November 14, 2025 GT Biopharma, Inc. (the "Company") (NASDAQ: GTBP), a clinical stage immuno-oncology company focused on developing innovative therapeutics based on the Company’s proprietary natural killer (NK) cell engager TriKE platform, reported third quarter 2025 financial results for the period ended September 30, 2025.

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The Company’s Phase 1 dose escalation study is evaluating GTB-3650 in a total of 14 patients (two patients per cohort) with relapsed or refractory (r/r) CD33 expressing hematologic malignancies, including refractory acute myeloid leukemia and high-risk myelodysplastic syndrome. GTB-3650 is dosed in two-week blocks, two weeks on and two weeks off, for up to four months based on clinical benefit. The trial aims to assess the safety, pharmacokinetics, pharmacodynamics, in vivo expansion of endogenous patient NK cells and clinical activity. The Company plans to provide the next update on the trial in the first quarter of 2026 following completion of additional dose cohorts.

"We are highly encouraged by the continued progress of our Phase 1 clinical trial evaluating GTB-3650 in cancer patients, which has now advanced to Cohort 4 at a dose level of 10 µg/kg/day ," said Michael Breen, Executive Chairman and Chief Executive Officer. "We look forward to assessing higher doses, as we are now approaching the efficacy range predicted by preclinical in vivo leukemia models, and we plan to share the next trial update in the first quarter of 2026. The excellent safety profile observed with GTB-3650 and the immune activation potential of bringing IL-15 to the immune synapse suggests a potential competitive advantage for GTB-5550 compared to other modalities like bispecific antibodies, cell therapies, and antibody drug conjugates also targeting solid tumors expressing B7H3, which is quicky emerging as a compelling novel immune checkpoint target."

Third Quarter 2025 Financial Summary

Cash Position: The Company had cash and cash equivalents of approximately $2.6 million as of September 30, 2025, which is anticipated to be sufficient to fund the Company’s operations into the first quarter of 2026.

Research and Development (R&D) Expenses: R&D expenses for the third quarter ended September 30, 2025 were approximately $0.6 million compared to $1.3 million for the same comparable quarter of 2024. The $0.7 million decrease was primarily due to a reduction in production and material costs. R&D expenses primarily relate to the Company’s continued licensing, development and production of its most advanced TriKE product candidates GTB-3650 and GTB-5550 along with the progression on other promising product candidates. In late June 2024, the Company received clearance from the Food and Drug Administration with respect to the Company’s Investigational New Drug ("IND") application in relation to the Company’s next generation GTB-3650 camelid nanobody product. Study enrollment began in early 2025 and the Company has advanced into the clinic, enrolling patients, and performing tests for data collection throughout the year. Following the financing completed in May 2025, the Company has restarted the final phase of product development of GTB-5550 and anticipates submission of an IND application for GTB-5550 in late December 2025 or in January 2026.

Selling, General and Administrative (SG&A) Expenses (Excluding Stock Compensation): SG&A expenses for the third quarter ended September 30, 2025 were relatively flat compared to the same comparable quarter of 2024, amounting to approximately $2.4 million compared to $2.3 million, respectively.

Net Loss: The Company reported a net loss of approximately $3.1 million for the third quarter ended September 30, 2025 compared to a net loss of $3.4 million for the same comparable quarter in 2024. The $0.3 million decrease consisted primarily of significant decreases in R&D expenses (as described above).

(Press release, GT Biopharma, NOV 14, 2025, View Source [SID1234659969])