Pyxis Oncology Provides Business Update and Reports Fourth Quarter and Full Year 2025 Financial Results

On March 23, 2026 Pyxis Oncology, Inc. (Nasdaq: PYXS), a clinical-stage company developing next-generation therapeutics for difficult-to-treat cancers, reported a business update, and announced financial results for the year and quarter ended December 31, 2025.

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"The completion of target enrollment in the Phase 1 monotherapy study of MICVO in patients with recurrent/metastatic head and neck squamous cell carcinoma is an important milestone for the Company and reflects the incredible effort of the Pyxis Oncology team," said Thomas Civik, Interim Chief Executive Officer and Director of Pyxis Oncology. "We are laser focused on clinical execution and operations so that we can deliver a robust dataset in mid-2026 that will allow us to further assess the potential of MICVO as monotherapy. Following the preliminary results shared last December, we implemented a modified weight-based dosing approach that is expected to deliver optimal drug exposure for patients across all weight ranges to further improve the benefit-risk profile for MICVO. We look forward to sharing these results mid-year, and plan to provide an assessment of whether the dosing modification achieved these intended goals. We also expect to share updated combination data in 2H26 as we continue to evaluate the potential of MICVO in the front-line setting, building on the encouraging initial combination data shared last December."

Pipeline Updates


Pyxis Oncology announced positive preliminary data for micvotabart pelidotin (MICVO) in recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC) in December 2025.

Monotherapy: 46% confirmed objective response rate (ORR) and 92% disease control rate (DCR) observed with MICVO as monotherapy in 2L+ R/M HNSCC (N=13, efficacy evaluable). MICVO as monotherapy was generally well tolerated, with no Grade 4 ADC payload treatment-related adverse events (TRAEs) of interest observed. No Grade 5 events occurred. Preliminary results shared in December 2025 included all Phase 1 patients (N=18) dosed at 5.4 mg/kg IV Q3W total body weight (TBW).

Combination: 71% confirmed ORR and 100% DCR observed with MICVO in combination with a fixed dose of 200 mg of KEYTRUDA (pembrolizumab) in 1L/2L+ R/M HNSCC at 3.6 mg/kg (N=4) and 4.4 mg/kg (N=3) IV Q3W. MICVO in combination with KEYTRUDA was generally well tolerated, with no Grade 3 or Grade 4 ADC payload TRAEs of interest observed. No Grade 5 events occurred. The combination study is part of a Clinical Trial Collaboration Agreement with Merck (known as MSD outside of the US and Canada).

During the fourth quarter of 2025, the Company obtained feedback and alignment from the U.S. Food and Drug Administration (FDA) regarding the clinical trial design for a planned pivotal monotherapy study in 2L+ R/M HNSCC.

Pyxis Oncology expects to report updated data from the ongoing MICVO Phase 1 monotherapy study in 2L+ R/M HNSCC mid-year 2026.

The ongoing MICVO Phase 1 monotherapy study is a two-part study. Part 1 was a dose escalation study across multiple doses and tumor types, with initial results shared in November 2024. Part 2, a dose expansion study at 5.4 mg/kg IV Q3W in 2L+ R/M HNSCC, is currently ongoing.

The dose expansion study of the ongoing MICVO Phase 1 monotherapy study includes two arms: post platinum & anti-PD(L)-1 experienced patients (Arm 1) and post EGFRi and/or anti-PD(L)-1 experienced patients (Arm 2). Target enrollment for each arm of the study was n=~20. Total study target enrollment of n=~40 was completed in 1Q26.

MICVO Phase 1 monotherapy data in 2L+ R/M HNSCC expected mid-year 2026 will include patients dosed at 5.4 mg/kg IV Q3W with a dose cap for patients with higher body weight, in addition to patients previously treated at 5.4 mg/kg IV Q3W TBW. Results are anticipated to include detailed analyses of the impact of the modified weight-based dosing approach on safety and efficacy. Adjusted Ideal Body weight (AIBW) dosing, which has demonstrated improved tolerability without sacrificing activity in clinical studies of other ADCs[1], is being implemented in ongoing clinical studies as well.

In the preliminary results shared in December 2025, there were no treatment-related adverse events (TRAEs) leading to discontinuation for patients at or below adjusted ideal body weight. Grade 3 auristatin ADC payload related TRAEs of interest were more frequent for high body weight[2] patients and TRAEs leading to discontinuation occurred exclusively in high body weight patients.

New PK simulation data presented in the Pyxis Oncology March 2026 corporate presentation and its 2025 Form 10-K show that modified weight-based dosing approaches, dose capping and AIBW, result in a decrease in drug exposure (Cavg) relative to TBW dosing, specifically for higher body weight patients. This reduction in exposure is expected to decrease the incidence and severity of auristatin ADC payload related TRAEs of interest and TRAEs leading to discontinuation, while preserving efficacy. Comparable drug exposure is predicted for dose capping and AIBW across all weight categories, including for higher body weight patients.

Pyxis Oncology expects to report updated data from the ongoing Phase 1/2 combination dose escalation study of MICVO and KEYTRUDA for 1L/2L+ R/M HNSCC patients in 2H26.

The ongoing MICVO Phase 1/2 study evaluating MICVO in combination with KEYTRUDA is currently in dose escalation across multiple doses for the treatment of 1L/2L+ R/M HNSCC. Preliminary positive results were shared in the December 2025 data update.

Pyxis Oncology presendted new translational data in October 2025 in two posters at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2025 and in six posters at the AACR (Free AACR Whitepaper)-NCI-EORTC International Conference, as well as three clinical trial posters at ESMO (Free ESMO Whitepaper). The presentation posters at ESMO (Free ESMO Whitepaper) and AACR (Free AACR Whitepaper)-NCI-EORTC provided deeper insights into the pharmacodynamic responses of tumors to MICVO as well as MICVO’s unique mechanism of action and its potential to exert anti-tumor activity through three mechanisms: direct tumor cell killing, bystander killing and immunogenic cell death.

In April 2026, Pyxis Oncology will present novel preclinical data at the 2026 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting. The study abstract highlights the anti-tumor activity of a murine analog of MICVO (maMICVO) in the poorly immunogenic, immunotherapy-refractory mouse oral carcinoma 2 (MOC2) syngeneic HNSCC model. Notably, image analysis suggested modulation of the immune landscape post-maMICVO treatment, providing scientific rationale to test the combination of maMICVO with anti-PD-1 in this refractory model.

Corporate Updates


Pyxis Oncology continues to build out its senior leadership team and internal capabilities:

Pyxis Oncology announced the appointment of Thomas Civik as Interim Chief Executive Officer in February 2026. Mr. Civik has been a member of Pyxis Oncology’s Board of Directors since October 2021 and is a highly experienced biotechnology executive with a proven track record in advancing cancer therapeutics. He most recently served as President and Chief Executive Officer of Five Prime Therapeutics, where he led the company through its acquisition by Amgen for $1.9 billion in April 2021. Mr. Civik previously served as Chairperson of the Board of ImCheck Therapeutics and Repare Therapeutics through their respective acquisitions by Ipsen and XOMA.

Pyxis Oncology appointed Heather Knowles as Senior Vice President, Head of Global Clinical Operations in January 2026. Ms. Knowles is a highly accomplished clinical development operations leader with more than 20 years of experience guiding global oncology programs across the full development continuum from first-in-human studies through registration. She has worked across solid tumors and hematologic malignancies and brings deep expertise spanning multiple modalities, including mRNA therapeutics, immune modulators, cell therapies, and small molecules. Ms. Knowles most recently served as Vice President, Clinical Operations, Therapeutics & Oncology at Moderna, where she built and scaled Moderna’s global clinical operations organization.

The Company announced the appointment of Alex Kane as Senior Vice President, Investor Relations and Capital Markets in October 2025. Mr. Kane brings 20 years of experience and a proven track record in investor relations, strategic communications, and equity capital markets across the life sciences sector. Mr. Kane most recently served as Vice President of Equity CapitalMarkets at Guggenheim Securities, advising biotechnology clients on financing strategies and equity transactions. Previously, Mr. Kane held senior investor relations and communications roles at Praxis Precision Medicines and PTC Therapeutics, successfully managing IPOs, secondary offerings, and long-term investor engagement.

Pyxis Oncology appointed Brian Freeman as Senior Vice President, Global Program Leader for MICVO in May 2025. Mr. Freeman brings deep expertise in program leadership and commercialization across a broad range of modalities, including ADCs, degraders, DACs, monoclonal antibodies, and small molecules, with a focus in Oncology and Immunology. His portfolio experience includes notable therapies such as pivekimab sunirine, Kadcyla, Xolair, Avastin, Herceptin, and Tarceva. Before joining Pyxis Oncology, Mr. Freeman led the pivekimab sunirine (IMGN-632) program at ImmunoGen/AbbVie and served as Head of Commercial Strategy at Foghorn Therapeutics.

In December 2025, Pyxis Oncology completed sale of its rights to royalties from the commercialization of Enzeshu (Suvemcitug for Injection) for a one-time cash payment of $11 million and four semi-annual installments of $175,000 each. This non-dilutive funding will support the development of MICVO. As part of Pyxis Oncology’s acquisition of Apexigen, Inc. in August 2023, the Company acquired rights to royalties on Enzeshu and another asset discovered using APXiMAB, Apexigen’s proprietary antibody discovery platform.
Full Year 2025 Financial Results


As of December 31, 2025, Pyxis Oncology had cash and cash equivalents, including restricted cash, and short-term investments, of $68.3 million. The Company believes that its current cash, cash equivalents, and short-term investments will be sufficient to fund its operations into the fourth quarter of 2026.

Revenues were $13.9 million for the year ended December 31, 2025, compared to $16.1 million for the year ended December 31, 2024. Revenues for 2025 consist of the regulatory milestone related to approval of suvemcitug in China and the sale of royalty rights for Enzeshu to Simcere. Revenues for 2024 consist of the settlement and sale of royalty rights for Beovu to Novartis.

Research and development expenses were $73.7 million for the year ended December 31, 2025, compared to $58.7 million for the year ended December 31, 2024. The increase was primarily due to a $6.1 million increase in contract manufacturing costs and a $7.5 million increase in clinical trial related expenses related to monotherapy and combination therapy of MICVO.

General and administrative expenses were $22.2 million for the year ended December 31, 2025, compared to $25.4 million for the year ended December 31, 2024. The decrease was primarily due to lower employee-related costs including stock-based compensation, lower corporate insurance costs and a decrease in legal, professional and consulting fees.

Net loss was $79.6 million, or ($1.28) per common share, for the year ended December 31, 2025, compared to $77.3 million, or ($1.32) per common share, for the year ended December 31, 2024. Excluding non-cash stock-based compensation expense and impairment loss, the net loss for the year ended December 31, 2025 was $67.8 million, compared to a net loss of $43.4 million for the year ended December 31, 2024.

As of March 20, 2026, the outstanding number of shares of Common Stock of Pyxis Oncology was 62,831,246.

(Press release, Pyxis Oncology, MAR 23, 2026, View Source [SID1234663828])

PharmaMar’s treatment for small cell lung cancer approved as first-line maintenance therapy in Taiwan

On March 23, 2026 PharmaMar (MSE:PHM) a Spanish biopharmaceutical company with 40 years of experience, reported that its treatment Zepzelca (lurbinectedin), in combination with atezolizumab (Tecentriq), has been approved by the Taiwan Food and Drug Administration (TFDA) as a first-line maintenance treatment for adult patients with advanced small cell lung cancer (SCLC).

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This approval as a first-line maintenance therapy means that the drug is administered after the initial induction treatment for those patients who achieve stable disease or better, in order to maintain the response achieved. In addition to Taiwan, this first-line maintenance combination has recently been approved for the same indication in the United Arab Emirates, Oman, Israel, Uruguay, Ecuador, Paraguay and Peru joining the United States and Switzerland, the first countries to have approved it for this indication. The Marketing Authorization Application (MAA) is currently under review by the European Medicines Agency (EMA), as well as in other countries worldwide.

PharmaMar commercializes its products outside Europe through agreements with strategic partners, with the aim of facilitating patient access worldwide to its innovative oncology therapies. Specifically, the Company collaborates with Lotus Pharmaceutical in Taiwan; Immedica in Oman and the United Arab Emirates; in Israel with Megapharm and Adium Pharma in Uruguay, Paraguay, Peru and Ecuador.

Furthermore, lurbinectedin as a monotherapy is approved as a second-line treatment, that is, after disease progression during or following platinum-based chemotherapy, in 22 countries.

Small cell lung cancer accounts for about 15% of lung cancer cases and is characterized by its aggressive behavior, and an early tendency to spread.

(Press release, PharmaMar, MAR 23, 2026, View Source [SID1234663827])

Outlook Therapeutics Announces Proposed Public Offering

On March 23, 2026 Outlook Therapeutics, Inc. (Nasdaq: OTLK), a biopharmaceutical company focused on enhancing the standard of care for bevacizumab for the treatment of retina diseases, reported that it has commenced a best-efforts public offering of its common stock (or pre-funded warrants in lieu thereof) and accompanying warrants exercisable for shares of its common stock. The offering is subject to market and other conditions and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering.

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H.C. Wainwright & Co. is acting as the exclusive placement agent for the offering.

Outlook Therapeutics intends to use the net proceeds from the offering primarily for working capital and general corporate purposes.

The securities described above are being offered by Outlook Therapeutics pursuant to a "shelf" registration statement on Form S-3 (File No. 333-278340) that was originally filed with the Securities and Exchange Commission (the "SEC") on March 28, 2024, and became effective on April 5, 2024. This proposed public offering is being made only by means of a prospectus supplement and an accompanying prospectus that form a part of the effective registration statement. A preliminary prospectus supplement and an accompanying prospectus related to the proposed public offering will be filed with the SEC and will be available on the SEC’s website at www.sec.gov. Copies of the preliminary prospectus supplement and the accompanying prospectus relating to this proposed public offering may also be obtained, when available, by contacting H.C. Wainwright & Co., LLC at 430 Park Avenue, 3rd Floor, New York, NY 10022, by phone at (212) 856-5711 or e-mail at [email protected].

This press release shall not constitute an offer to sell or a solicitation of an offer to buy any of the securities described herein, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

(Press release, Outlook Therapeutics, MAR 23, 2026, View Source [SID1234663826])

Nurix Therapeutics Announces Multiple Presentations Showcasing Depth of Research Pipeline and Scientific Leadership at the American Association for Cancer Research (AACR) 2026 Annual Meeting

On March 23, 2026 Nurix Therapeutics, Inc. (Nasdaq: NRIX), a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of targeted protein degradation medicines, reported that two oral presentations and three poster presentations highlighting the breadth of its research pipeline and scientific leadership will be presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) 2026 Annual Meeting, to be held April 17-22, 2026, in San Diego, California.

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The presentations will provide additional mechanistic validation of CBL-B, Aurora kinase A (AURKA) and mutant BRAF as therapeutic targets across multiple cancer indications and will highlight the potential of Nurix’s orally bioavailable degraders to effectively suppress the oncogenic activity of these proteins in preclinical models.

Additionally, Gwenn Hansen, Ph.D., chief scientific officer of Nurix Therapeutics, has been selected to speak in an AACR (Free AACR Whitepaper) Advances session on induced proximity pharmacology, including targeted protein degradation. AACR (Free AACR Whitepaper) Advances sessions bring together leading scientific perspectives to provide a comprehensive view of recent developments, the current state of research, and emerging challenges in the field.

Oral Presentation Details:

Title: Designing Effective Degrader Therapeutics: What Early Clinical Experience Has Taught Us
Speaker: Gwenn Hansen, Ph.D., chief scientific officer, Nurix Therapeutics
Session type: Advances in Diagnostics and Therapeutics
Session title: Induced Proximity Pharmacology: Degraders and Beyond
Session date and time: Wednesday, April 22, 2026, 10:15 a.m. – 11:45 a.m. PT

Title: Discovery and characterization of CBL-B intramolecular glue inhibitors that increase T cell activation and suppress tumor growth
Presenter: Fred Cohen, Ph.D.
Session type: Minisymposium
Session category: Chemistry
Session title: Targeted Therapies
Session date and time: Tuesday, April 21, 2026, 4:30 p.m. PT
Abstract presentation #: 6733

Poster Presentation Details:

Title: NRX-4972, a selective, oral, Aurora kinase A degrader, demonstrates increased efficacy in an SCLC tumor model, and greater in vitro synergy than an AURKA inhibitor
Presenting author: Ryan Rountree, Ph.D.
Session category: Targeted Protein Degradation and Induced Proximity
Session title: Targeted Protein Degradation and Induced Proximity
Session date and time: Tuesday, April 21, 2026, 9:00 a.m. – 12:00 p.m. PT
Poster #: 5166

Title: NRX-0305, an orally bioavailable, CNS penetrant pan-mutant BRAF degrader demonstrates robust efficacy in intracranial models of melanoma brain metastasis and primary glioma
Presenting author: Sasha Borodovsky, Ph.D.
Session category: Experimental and Molecular Therapeutics
Session title: Proximity-Induced Drug Discovery 1
Session date and time: Tuesday, April 21, 2026, 9:00 a.m. – 12:00 p.m. PT
Poster #: 4617

Title: NRX-0305 is an orally bioavailable, pan-mutant BRAF degrader that exhibits single-agent and combination efficacy with MEKi or anti-EGFR across Class 1/2/3 BRAF-mutant cancers
Presenting author: Ya-Wen Lu, Ph.D.
Session category: Experimental and Molecular Therapeutics
Session title: Proximity-Induced Drug Discovery 2
Session date and time: Tuesday, April 21, 2026, 2:00 p.m. – 5:00 p.m. PT
Poster #: 5801

About NX-1607
NX-1607 is an investigational first-in-class oral inhibitor of the E3 ligase Casitas B-lineage lymphoma proto-oncogene B (CBL-B) being developed for immuno-oncology indications, including a range of solid tumor types. CBL-B is a cytoplasmic E3 ubiquitin ligase that negatively regulates T cell activation, making it an attractive target for immuno-oncology and offering a novel therapeutic approach to treat solid tumors. Inhibition of CBL-B in preclinical studies reverses T cell exhaustion, alleviates tumor induced immunosuppression, and may also exert direct antitumor effects. Nurix is evaluating NX-1607 in an ongoing Phase 1 trial in adults in a range of oncology indications. This study includes a thorough investigation of both dose and schedule in the Phase 1a portion. Additional information on the NX-1607 clinical trial can be accessed at www.clinicaltrials.gov (NCT05107674).

About NRX-0305
NRX-0305 is a potent, selective, and orally bioavailable CNS-penetrant pan-mutant BRAF degrader that Nurix is exploring for use in oncology. Nurix has reported preclinical data demonstrating potent anti-tumor activity in multiple cell line-derived and patient-derived xenograft disease models representing Class I, Class II, and Class III B-RAF mutations. Anti-tumor activity was also observed in the setting of CNS disease and treatment-resistance, suggesting the potential for utility across a broad range of solid tumor types.

About NRX-4972
NRX-4972 is a CNS-penetrant, orally bioavailable and highly selective degrader of Aurora A kinase (AURKA). AURKA is an oncogene frequently overexpressed in adult solid tumors, hematologic malignancies, and pediatric cancers. Several AURKA inhibitors are effective in preclinical tumor models, but this activity has failed to translate into clinical efficacy. To address the limitations of inhibitors, Nurix has designed bifunctional targeted protein degraders of AURKA that enable removal of both enzymatic and scaffolding functions.

(Press release, Nurix Therapeutics, MAR 23, 2026, View Source [SID1234663825])

Moleculin Hits 45 Subject Enrollment Milestone, Triggering Final Countdown to Mid-2026 MIRACLE Trial Data Readout

On March 23, 2026 Moleculin Biotech, Inc., (Nasdaq: MBRX) ("Moleculin" or the "Company"), reported that the 45th subject has been enrolled in its pivotal Phase 2B/3 MIRACLE trial evaluating Annamycin in combination with cytarabine (AnnAraC) for the treatment of adult subjects with relapsed or refractory acute myeloid leukemia (R/R AML). This milestone triggers the final phase of preparation for the trial’s interim 45 subject data unblinding, which remains on track for mid-2026 and represents a potentially defining inflection point for the Company.

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"We believe this upcoming data readout represents the most important milestone in our history to date," said Walter Klemp, Chairman and CEO of Moleculin. "This is a critical achievement for Moleculin and, more importantly, for patients facing relapsed or refractory AML. Reaching the 45 subject mark brings us to the threshold of our first meaningful look at MIRACLE data. Based on what we believe to be encouraging blinded results announced in February, we believe we are building real momentum toward what could be a transformative outcome. Our Phase 2 AML MB-106 clinical trial generated greater efficacy than any drug ever approved for relapsed or refractory AML, and it contributed to the more than 100 patients treated to date without any associated cardiotoxicity. What remains now is to demonstrate that a larger Phase 3 trial can produce results that will support new drug approval. The upcoming unblinding of the first 45 subjects should be a strong indicator of that potential. A true next-generation anthracycline has long been sought by medical science and would rightly be considered a gamechanger, not just for AML but for a wide range of cancers. We now appear to be on the threshold of finding out whether this can become a reality."

Moleculin Biotech continues to advance toward a defining milestone with its ongoing MIRACLE trial, a global, adaptive Phase 2B/3 study designed to evaluate AnnAraC across eight countries to date. The trial protocol provides for early unblinding of data after the first 45 subjects complete treatment, which is expected to yield an initial dataset of approximately 30 patients treated with AnnAraC (at two different dose levels) and 15 patients in the control arm receiving cytarabine plus placebo. This upcoming interim readout is anticipated to provide critical insights into efficacy, safety, and dose optimization as the study progresses toward its Phase 3 portion. Enrollment continues in parallel with the 45th subject unblinding as the Company advances to 90 total subjects thereby concluding Part A of MIRACLE, expected in Q3 2026, with the complete unblinding of Part A thereafter.

Encouraging early signals have already emerged from this difficult-to-treat patient population. In February 2026, Moleculin reported a preliminary blinded composite complete remission rate of 40% among the first 30 patients enrolled in the MIRACLE trial, consisting of 30% complete remission and 10% complete remission with partial hematologic recovery. These findings are particularly notable given that approximately 35% of subjects had previously failed venetoclax-based therapies, and many exhibited adverse genetic markers typically associated with poor outcomes. Additionally, the multinational nature of the trial underscores consistent activity across diverse clinical settings. Even with the inclusion of the control arm, these preliminary blinded aggregate outcomes compare favorably to historical remission rates associated with cytarabine alone in relapsed or refractory acute myeloid leukemia.

The MIRACLE trial’s adaptive design is intended to support a streamlined global registration pathway by integrating data from its Phase 2B portion into the planned Phase 3 portion, in alignment with regulatory guidance, including FDA Project Optimus principles. Following the interim readout, enrollment is expected to continue toward 90 patients to enable a second unblinding, with the Phase 3 portion of the study commencing once the optimum dose is determined. The program remains on track toward a potential accelerated approval pathway based solely on the Complete Remission primary endpoint.

Progress in the MIRACLE trial also reflects broader momentum across Moleculin’s oncology pipeline, which includes ongoing and planned studies targeting pancreatic cancer, brain tumors, and soft tissue sarcoma. With dosing of the 45th subject now complete, the Company is entering a catalyst-rich period leading up to the anticipated mid-2026 interim data readout, a milestone that could significantly influence the future development of Annamycin in the treatment of acute myeloid leukemia.

For additional information on the MIRACLE trial, please visit ClinicalTrials.gov and reference Identifier: NCT06788756.

(Press release, Moleculin, MAR 23, 2026, View Source [SID1234663824])