On May 14, 2025 PDS Biotechnology Corporation (Nasdaq: PDSB) ("PDS Biotech" or the "Company"), a late-stage immunotherapy company focused on transforming how the immune system targets and kills cancers, reported a clinical and corporate update and announced financial results for the first quarter ended March 31, 2025 (Press release, PDS Biotechnology, MAY 14, 2025, View Source [SID1234653072]).

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"The first quarter of 2025 and recent weeks have been productive for PDS Biotech, highlighted by the initiation of our VERSATILE-003 Phase 3 clinical trial evaluating Versamune HPV in recurrent/metastatic ("R/M") HPV16-positive head and neck squamous carcinoma ("HNSCC")," said Frank Bedu-Addo, Ph.D., President and Chief Executive Officer of PDS Biotech. "We are pleased to announce that site activation is progressing, and that Mayo Clinic sites have recently been added to the trial. HPV16-positive HNSCC represents a large, rapidly growing patient population in need of targeted therapies to treat the underlying cause of the cancer, and our Versamune HPV investigational therapy is currently the only targeted therapy in a Phase 3 trial specifically for HPV-16 positive tumors."

Clinical and Corporate Update

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On April 23, 2025, the Company announced that three abstracts on Versamune HPV (PDS0101) were selected for presentation at the 2025 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting, to be held May 30-June 3, 2025, in Chicago, IL.

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On May 8, 2025, the Company announced that preclinical efficacy and immune response data with a novel investigational Infectimune based universal flu vaccine were featured in two presentations on universal influenza vaccines, including an oral symposium at the American Association of Immunologists’ IMMUNOLOGY2025 Annual Meeting, held May 3-7, 2025, in Honolulu, Hawaii.

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On March 13, 2025, the Company announced U.S. Food and Drug Administration ("FDA") clearance of an Investigational New Drug ("IND") application for the combination of Versamune MUC1 and PDS01ADC to treat MUC1-positive unresectable, metastatic colorectal carcinoma in patients who failed previous treatment. The National Cancer Institute ("NCI"), under its Cooperative Research and Development Agreement ("CRADA"), will lead the Phase 1/2 clinical trial evaluating the combination of Versamune MUC1 + PDS01ADC in recurrent/metastatic colorectal cancer.

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On March 7, 2025, the Company announced the initiation of its VERSATILE-003 Phase 3 trial in HPV16-positive first-line recurrent and/or metastatic HNSCC.

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Trial is designed to include approximately 350 patients

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PDS Biotech is aligned with the FDA on the design of the registrational trial and clinical endpoints.

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Two-arm controlled trial with 2:1 randomization

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Median overall survival is the primary endpoint

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Interim readouts included in the study design

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The Company received FDA Fast Track designation for the combination of Versamune HPV and pembrolizumab in R/M HNSCC.

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For more information on VERSATILE-003, visit ClinicalTrials.gov (Identifier: NCT06790966).

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On February 27, 2025, the Company announced that it had entered into securities purchase agreements with new and existing healthcare-focused institutional investors, as well as participation from certain directors of the Company, for the purchase and sale of 7,330,121 shares of its common stock (or common stock equivalents in lieu thereof) and warrants to purchase up to an aggregate of 7,330,121 shares of common stock in a registered direct offering priced at-the-market under Nasdaq rules at a combined purchase price of $1.50 for the institutional investors and $1.66 for certain directors of the Company. Approximately $11 million was funded upon the closing of the offering, and up to an additional $11 million may be funded upon full cash exercise of the warrants.

First Quarter 2025 Financial Results

Reported net loss was approximately $8.5 million, or $0.21 per basic and diluted share, for the three months ended March 31, 2025, compared to $10.6 million, or $0.30 per basic share and diluted share, for the three months ended March 31, 2024. The decrease was due to increased benefit from income taxes and lower operating expenses.

Research and development expenses were $5.8 million for the three months ended March 31, 2025, compared to $6.7 million for the three months ended March 31, 2024. The decrease was primarily due to lower clinical trial expenses.

General and administrative expenses were $3.3 million for the quarter ended March 31, 2025, compared to $3.4 million for the three months ended March 31, 2024.

Total operating expenses were $9.1 million for the quarter ended March 31, 2025, compared to approximately $10.1 million for the three months ended March 31, 2024.

Net interest expenses were $0.6 million compared to approximately $0.5 million for the three months ended March 31, 2024.

The Company’s cash balance as of March 31, 2025 was $40 million, compared to $41.7 million as of December 31, 2024.

Conference Call Details

Date: May 14, 2025
Time: 8:00 a.m. Eastern Time
Dial-in: 1-877-704-4453 (Domestic) or 1-201-389-0920 (International)
Webcast Registration: Click Here
Call MeTM Registration: Click Here (Available 15 minutes prior to call)

On May 14, 2025 Pasithea Therapeutics Corp. (NASDAQ: KTTA) ("Pasithea" or the "Company"), a clinical-stage biotechnology company developing PAS-004, a next-generation macrocyclic MEK inhibitor reported initiation of its Phase 1/1b open label study to assess the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of PAS-004, in adult participants with neurofibromatosis type 1 (NF1) with symptomatic and inoperable, incompletely resected, or recurrent plexiform neurofibromas (Press release, Pasithea Therapeutics, MAY 14, 2025, View Source [SID1234653071]). The study will also assess preliminary anti-tumor activity and help determine a recommended dose for subsequent Phase 2 trials. Exploratory objectives include assessing the effects of PAS-004 on cutaneous neurofibromas.

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The first active clinical trial site is the Royal North Shore Hospital in Sydney, Australia, which is expected to begin patient enrollment in Q2 2025. Additional clinical trial sites in Australia, South Korea, and the United States are expected to be opened in the coming months.

Pasithea has selected Novotech (Australia) Pty Limited as its clinical research organization (CRO) for this trial. The Company is conducting the study through its wholly owned subsidiary in Australia, Pasithea MacroMEK Pty Ltd, and anticipates eligibility for an Australian R&D Tax Incentive with a cash refund of up to 48.5% of the amount spent annually on eligible R&D activities (trial costs) in Australia.

Dr. Rebecca Brown, M.D., Ph.D. a member of Pasithea’s Scientific Advisory Board and Associate Professor of Neuro Oncology at The University of Alabama at Birmingham commented, "I am pleased to have collaborated with the Pasithea team on the design of a comprehensive dose exploration and expansion study to assess the safety and tolerability of PAS-004 in adult NF1 patients. In addition to testing the effects of PAS-004 on plexiform neurofibromas, exploratory endpoints will also examine the effects of PAS-004 on cutaneous neurofibromas. The safety profile observed to date in advanced cancer patients is encouraging, and I look forward to seeing that profile translate to the NF1 population." Dr. Brown added, "One of the biggest challenges in treating plexiform neurofibromas associated with NF1 is ensuring that patients remain on MEK inhibitor therapy over the long-term. Real-world data shows that a significant proportion of NF1 patients discontinue treatment due to poor tolerability, including high rates of rash and gastrointestinal side effects. PAS-004 is also given as a once daily dose that offers a more convenient regimen than current FDA-approved therapies that are dosed twice a day and which could improve patient compliance."

Dr. Tiago Reis Marques, Pasithea’s Chief Executive Officer, said, "Following our recent financing, including the exercise of certain warrants, Pasithea is now funded to produce initial interim patient data in NF1. The initiation of this clinical trial in NF1, the initial indication we seek FDA marketing approval for, marks an important milestone for Pasithea and for patients living with NF1-related plexiform neurofibromas. Activating our first clinical trial site underscores our commitment to advancing PAS-004 as a potential best-in-class next-generation MEK inhibitor. We are encouraged by the safety and clinical data observed to date in oncology patients and are optimistic that PAS-004’s tolerability profile will extend to the NF1 population. Importantly, our existing cancer data has enabled us to begin the NF1 trial at a higher dose than originally contemplated. In addition, we anticipate meaningful cash rebates of eligible trial costs through the Australian R&D Tax Incentive, further enhancing the efficiency of this program."

About the Phase 1/1b Clinical Trial in Adult NF1 Patients

The primary objective of the Phase 1/1b study (NCT06961565) is to evaluate the safety and tolerability of PAS-004 when administered for one 28-day treatment cycle in adult NF1 participants with at least one and up to two additional target plexiform neurofibromas (PNs) that are symptomatic and inoperable, incompletely resected, or recurrent. Secondary objectives are (i) to identify the recommended Part B dose ("RPBD") or Maximum Tolerated Dose (MTD) of PAS-004, (ii) to characterize the PK and PD profile of PAS-004, (iii) to evaluate the preliminary efficacy of PAS-004 on target PN volume, (iv) to evaluate the preliminary efficacy of PAS-004 on the size, appearance, and associated symptoms of cutaneous neurofibromas (CNs), and (v) to evaluate the impact of PAS-004 on quality of life ("QOL") and any physical symptoms attributed to the target PN. Experimental objectives are (i) to evaluate the impact of PAS-004 on QOL and any physical symptoms attributed to CNs, (ii) to evaluate the impact of PAS-004 on pain and function attributed to PNs, and (iii) to investigate PAS-004 effects on CN tumor cellular and molecular biology.

The trial will be conducted in two parts. In Part A, following a screening period of up to 28 days, up to 24 eligible participants will be enrolled sequentially to receive one of four planned dose levels of PAS-004 tablets (4mg, 8mg, 12 mg, 18mg) in a modified 3+3 design. Part A will identify the recommended RPBD. During Part B, up to 24 eligible participants will be enrolled in parallel to receive one of two planned dose levels of PAS-004 tablets. Participants will be dosed at the RPBD level and at a dose level below the RPBD for up to six continuous 28-day treatment cycles. Part B will identify the recommended phase 2 dose (RP2D).

The study is planned to be conducted at five clinical trial sites in Australia, South Korea and the U.S.

To learn more about the PAS-004 clinical trial in adults with NF1-associated plexiform neurofibromas, please visit www.clinicaltrials.gov.

On May 14, 2025 Nurix Therapeutics, Inc. (Nasdaq: NRIX), a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of targeted protein degradation medicines, reported that data from the Company’s ongoing Phase 1a/b clinical trial of bexobrutideg (NX-5948) in patients with relapsed/refractory chronic lymphocytic leukemia (CLL) and Waldenström macroglobulinemia will be presented at two major upcoming scientific conferences (Press release, Nurix Therapeutics, MAY 14, 2025, View Source [SID1234653070]).

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Data will be featured in two posters at the European Hematology Association (EHA) (Free EHA Whitepaper) 2025 Congress (EHA 2025), taking place June 12–15, 2025, in Milan, Italy, and in an oral presentation and poster at the 18th International Conference on Malignant Lymphoma (18-ICML), to be held June 17–21, 2025, in Lugano, Switzerland.

EHA 2025 Presentation Details:

Title: Bexobrutideg (NX-5948), a novel Bruton’s tyrosine kinase (BTK) degrader, demonstrates rapid and durable clinical responses in relapsed refractory CLL: updated findings from an ongoing Phase 1a Study
Presenting author: Zulfa Omer, M.D., Assistant Professor Internal Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
Session title: Poster Session 1
Session date and time: Friday, June 13 (18:30 – 19:30 CEST)
Abstract ID: PF571

Title: Bexobrutideg (NX-5948), a novel Bruton’s tyrosine kinase (BTK) degrader, shows high clinical activity and tolerable safety in an ongoing Phase 1a/b study in patients with Waldenström macroglobulinemia
Presenting author: Dima El-Sharkawi, M.B., B.S., M.A., Ph.D., MRCP FRCPath, Consultant Haematologist, Royal Marsden NHS Foundation Trust, Sutton, UK
Session title: Poster Session 2
Session date and time: Saturday, June 14 (18:30 – 19:30 CEST)
Abstract ID: PS1883

18-ICML Oral Presentation Details:

Title: Bexobrutideg (NX-5948), a novel Bruton’s tyrosine kinase (BTK) degrader, demonstrates rapid and durable clinical responses in relapsed refractory CLL: updated findings from an ongoing Phase 1a Study
Presenter: Alexey Danilov, M.D., Ph.D., Marianne and Gerhard Pinkus Professor in Early Clinical Therapeutics, Co-Director of Toni Stephenson Lymphoma Center, City of Hope National Medical Center, Duarte, CA, USA
Session title: 18: New Drugs
Session date and time: Saturday, June 21 (9:30 CEST).
Abstract ID: 093

18-ICML Poster Presentation Details:

Title: Bexobrutideg (NX-5948), a novel Bruton’s tyrosine kinase (BTK) degrader, shows high clinical activity and tolerable safety in an ongoing Phase 1a/b study in patients with Waldenström macroglobulinemia
Presenting author: David Lewis, M.D., Consultant Hematologist, Derriford Hospital; Associate Professor, Derriford Hospital, Plymouth, UK
Session title: Poster Session (Odd numbered posters)
Session date and time: Thursday, June 19 (10:00-18:00 CEST)
Abstract ID: 437

About Bexobrutideg (NX-5948)
Bexobrutideg is an investigational, orally bioavailable, brain penetrant, small molecule degrader of BTK. Bexobrutideg is currently being evaluated in a Phase 1 clinical trial in patients with relapsed or refractory B cell malignancies. Additional information on the ongoing clinical trial can be accessed at clinicaltrials.gov (NCT05131022).

On May 14, 2025 Nkarta, Inc. (Nasdaq: NKTX), a clinical-stage biopharmaceutical company developing engineered natural killer (NK) cell therapies, reported financial results for the first quarter and year ended March 31, 2025 (Press release, Nkarta, MAY 14, 2025, View Source [SID1234653069]).

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"Our recent restructuring and continued efforts at cost containment have positioned us well to achieve our clinical milestones while ensuring we have cash to support our critical operations into 2029," said Paul J. Hastings, CEO of Nkarta. "In order to maximize success in our trials, we have incorporated a lymphodepletion regimen utilizing both cyclophosphamide and fludarabine. Similar trials have established this combination, and we believe there is value in producing a comparable dataset while still continuing our cyclophosphamide-only regimen for eligible patients. This approach has potential to provide data on both regimens, which best positions us to advance NKX019 in the clinic and deliver this potential new treatment to patients with B cell-mediated autoimmune diseases. We remain on track to provide our initial clinical update for the Ntrust-1 and Ntrust-2 studies in the second half of 2025."

Updates for NKX019 clinical programs in Autoimmune Diseases

Ntrust-1, a clinical trial of NKX019 for the treatment of lupus nephritis (LN), expanded to include patients with primary membranous nephropathy (pMN) with an aim of addressing the unmet need for novel therapies in this disease. Ntrust-1 is currently open to enroll patients with pMN and remains open to enroll patients with LN.
Ntrust-2, a clinical trial of NKX019 for the treatment of systemic sclerosis, idiopathic inflammatory myopathy and anti-neutrophil cytoplasmic antibody-associated vasculitis, continues to enroll patients.
Ntrust-1 and Ntrust-2 protocols amended to modify lymphodepletion prior to administration of NKX019 to use of a combination of fludarabine and cyclophosphamide, with the option for eligible patients to continue to receive cyclophosphamide alone as modified lymphodepletion.
The IST of NKX019 for the treatment of myasthenia gravis led by researchers at the University of California, Irvine opened to enrollment.
The IST of NKX019 for the treatment of systemic lupus erythematosus led by researchers at the Columbia University Irving Medical Center, remains open for enrollment.
Anticipated Ntrust clinical trial milestones for 2025

Preliminary clinical data from the Ntrust-1 and Ntrust-2 clinical trials is planned for the second half of 2025. The update is expected to include clinical response with available follow-up from a group of patients in the Ntrust-1 and Ntrust-2 studies.
Other Corporate Updates

Robert Ortmann, M.D., an accomplished rheumatologist with over 20 years of clinical and scientific experience to join Nkarta as Vice President, Clinical Development, effective May 15, 2025. Dr. Ortmann, who has extensive clinical development experience across a wide range of autoimmune diseases, will report to David Shook, M.D., Chief Medical Officer, Head of Research & Development.
In March 2025, Nkarta announced a restructuring plan, including a reduction in force impacting 34% of its workforce, prioritizing investments in clinical execution, and freezing select future headcount to extend the cash runway by more than one year into 2029 to enable the achievement of key clinical milestones while maintaining sufficient funds to support ongoing operations beyond those milestones.
First Quarter 2025 and Recent Financial Highlights

Nkarta had cash, cash equivalents, restricted cash, and investments in marketable securities of $351.9 million as of March 31, 2025.
Research and development (R&D) expenses were $24.2 million for the first quarter of 2025. Non-cash stock-based compensation expense included in R&D expense was $1.1 million for the first quarter of 2025.
General and administrative (G&A) expenses were $12.4 million for the first quarter of 2025, which included $5.1 million of restructuring expenses in March 2025. Non-cash stock-based compensation expense included in G&A expense was $1.7 million for the first quarter of 2025.
Net loss was $32.0 million, or $0.43 per basic and diluted share, for the first quarter of 2025. This net loss includes non-cash charges of $4.3 million that consisted primarily of share-based compensation and depreciation expenses.
Financial Guidance

Nkarta expects its current cash and cash equivalents will be sufficient to fund its current operating plan into 2029.
About the Ntrust Clinical Trials in Autoimmune Disease
Ntrust-1 (NCT06557265) and Ntrust-2 (NCT06733935) are multi-center, open label, dose escalation clinical trials that build on academic studies of durable, drug-free remissions in patients with autoimmune disease after CD19-targeted cell therapy. Both trials will assess the safety of NKX019 in people living with autoimmune diseases as well as its ability to enable long-term remissions via a "reset" of the immune system through the elimination of pathogenic B cells.

Ntrust-1 is initially enrolling up to 24 patients with lupus nephritis or primary membranous nephropathy. Ntrust-2 is initially enrolling up to 36 patients with systemic sclerosis, idiopathic inflammatory myopathy, or anti-neutrophil cytoplasmic antibody-associated vasculitis.

In both studies, patients receive a three-dose cycle of NKX019 on Days 0, 3, and 7 following lymphodepleting conditioning with either fludarabine and cyclophosphamide or cyclophosphamide alone. Leveraging the engineering of NKX019, no patients in either trial will receive supplemental cytokines or antibody-based therapeutics. This approach is designed to evaluate the single-agent activity of NKX019 and facilitate a more rapid path to regulatory approval. Patients in Ntrust-1 may also receive additional cycles to restore response.

About the Investigator-Sponsored Clinical Trial of NKX019 for Generalized Myasthenia Gravis
The single-arm, open-label Phase 1 investigator-sponsored clinical trial is designed to enroll patients with generalized myasthenia gravis and will evaluate safety and clinical outcomes. Translational and biomarker studies, including autoantibodies, cytokine profiles and pharmacokinetics are planned. Patients receive 3 doses of NKX019 following lymphodepletion. The clinical trial is being co-led by Ali A. Habib, M.D., Clinical Professor of Neurology at the University of California, Irvine, and other investigators.

About the Investigator-Sponsored Clinical Trial of NKX019 for Systemic Lupus Erythematosus
The single-center, single-arm, open-label Phase 1 investigator-sponsored clinical trial (NCT06518668) is designed to enroll up to 6 patients with systemic lupus erythematosus, regardless of renal involvement, and will evaluate safety and clinical outcomes in a potentially different population than Ntrust-1. Translational and biomarker studies, including autoantibodies, cytokine profiles and pharmacokinetics are planned. Patients receive 3 doses of NKX019 following lymphodepletion. The clinical trial is being led by Anca D. Askanase, M.D., M.P.H., Director, Lupus Center at Columbia University Irving Medical Center and the Director of Rheumatology Clinical Trials.

About NKX019
NKX019 is an allogeneic, cryopreserved, off-the-shelf immunotherapy candidate that uses natural killer (NK) cells derived from the peripheral blood of healthy adult donors. It is engineered with a humanized CD19-directed chimeric antigen receptor (CAR) for enhanced cell targeting and a proprietary, membrane-bound form of interleukin-15 (IL-15) for greater persistence and activity without exogenous cytokine support. CD19 is a biomarker for normal B cells as well as those implicated in autoimmune disease and B cell-derived malignancies. Nkarta is evaluating NKX019 in multiple autoimmune conditions.

On May 14, 2025 Moleculin Biotech, Inc., (Nasdaq: MBRX) ("Moleculin" or the "Company"), a late-stage pharmaceutical company with a broad portfolio of drug candidates targeting hard-to-treat cancers and viral infections, reported its financial results for the first quarter 2025 ended March 31, 2025 (Press release, Moleculin, MAY 14, 2025, View Source [SID1234653068]). As previously announced, the Company will host a conference call and live audio webcast to discuss the operational and financial results today, May 14, 2025 at 8:30 AM ET.

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"We are pleased with the continued progress of our pivotal, adaptive Phase 3 MIRACLE trial and remain encouraged by the Annamycin data demonstrated to date. In particular, with the sites opening in the US, the recent approval from the EMA, and the individual country committee and/or ethics approvals we have received for Belgium, Czechia, France, Germany, Italy, Lithuania, Poland, Romania, and Spain positions us to continue building momentum and remain on track with our expected enrollment and data milestones," commented Walter Klemp, Chairman and Chief Executive Officer of Moleculin.

Mr. Klemp continued, "In addition to the progress with our AML program, we are seeing advancements across our pipeline. We continue to be encouraged by the MB-107 trial data demonstrated by Annamycin for the treatment of STS lung mets and expect to report final data readouts from that trial before the end of June. Additionally, investigator-initiated clinical and preclinical work continues on WP1066, our STAT3 inhibitor."

Recent Highlights

Received European Medicines Agency (EMA) approval for its Clinical Trial Application (CTA) to conduct Phase 3 MIRACLE clinical trial in all nine countries submitted in the European Union (EU);
Announced the International Nonproprietary Names (INN) Expert Committee of the World Health Organization approved "naxtarubicin" for the non-proprietary names of the Company’s next-generation anthracycline in development, Annamycin;
Bolstered Annamycin intellectual property portfolio with granting of two new U.S. patents: U.S. patent number 12,257,261 titled, "Preparation of Preliposomal Annamycin Lyophilizate" and U.S. patent 12,257,262 titled "Method of Reconstituting Liposomal Annamycin";
Presented new pre-clinical data for Annamycin demonstrating market expansion potential including treatment for pancreatic cancer at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2025; and
Commenced patient dosing in its ongoing pivotal, adaptive design Phase 3 MIRACLE trial.
Clinical Development Update

Relapsed or Refractory (R/R) Acute Myeloid Leukemia (AML)

The Company is currently evaluating Annamycin (naxtarubicin) in combination with Cytarabine (also known as "Ara-C" and for which the combination of Annamycin and Ara-C is referred to as "AnnAraC") in a Phase 3 pivotal trial for the treatment of AML patients who are refractory to or relapsed after induction therapy (R/R AML). This Phase 3 "MIRACLE" trial (derived from Moleculin R/R AML AnnAraC Clinical Evaluation) will be global, including sites in the US, Europe and the Middle East. As of the end of April 2025, 38 sites have been selected in all of the regions targeted, with 5 sites in the US.

The MIRACLE study is a Phase 2B/3 clinical trial whereby data from the 2B portion will be combined with the Phase 3 portion for purposes of measuring its primary efficacy endpoint. MIRACLE is subject to appropriate future filings with and potential additional feedback from the FDA and their foreign equivalents, utilizes an adaptive design whereby the first 75 to 90 subjects will be randomized (1:1:1) in Part A of the trial to receive high dose cytarabine (HiDAC) combined with either placebo, 190 mg/m2 of Annamycin, or 230 mg/m2 of Annamycin, which Annamycin doses were specifically recommended by the FDA in the Company’s end of Phase 1B/2 meeting.

The protocol for the MIRACLE trial allows for the unblinding of preliminary primary efficacy data (Complete Remission or CR) and safety/tolerability of the three arms at 45 subjects, in addition to the conclusion of Part A (at 75 to 90 subjects). The first early unblinding will yield 30 subjects treated with Annamycin (190mg/m2 and 230 mg/m2) and HiDAC and 15 subjects treated with just HiDAC plus placebo. The Company expects to reach the first unblinding (45 subjects) in the second half of 2025, in addition to the second unblinding, which is expected in the first half of 2026. This accelerated estimated timeline is due in part to the positive response the Company received in meetings during December with potential investigators regarding recruitment for the trial.

The clinical trial approval with EMA was granted under the condition that the Company present results of appropriate nonclinical GLP studies before initiating the Phase 3 portion (Part B) of the study. Results will be submitted as a substantial modification to the existing approved protocol.

For Part B of the trial, approximately 220 additional subjects will be randomized to receive either HiDAC plus placebo or HiDAC plus the optimum dose of Annamycin (randomized 1:1). The selection of the optimum dose will be based on the overall balance of safety, pharmacokinetics and efficacy, consistent with the FDA’s new Project Optimus initiative.

Patient dosing has commenced, and the initial data readout is on track for the second half of 2025. For more information about the MIRACLE trial, visit clinicaltrials.gov and reference identifier NCT06788756. Additionally, the clinical trial in the EU is on clinicaltrials.eu, and the reference identifier there is 2024-518359-47-00.

Expected Milestones for Annamycin AML Development Program

1Q – 3Q 2025 – Update on MIRACLE trial site selection/approvals by countries
2025 – Recruitment update for MIRACLE trial
2H 2025 – Data readout (n=45) unblinded efficacy/safety review
2H 2025 – 2026 – Impact of data readout (n=45) on regulatory pathway; Recruitment update
1H 2026 – Interim efficacy and safety data (n=~75-90) unblinded and Optimum Dose set for MIRACLE trial
2027 – Begin enrollment of 3rd line subjects in MIRACLE2
2027 – Enrollment ends in 2nd line subjects
2027 – Begin enrollment in pediatric AML trial
2028 – Primary efficacy data for 2nd line subjects in MIRACLE
2028 – Begin submission of a Rolling New Drug Application (NDA) for the treatment of R/R AML for accelerated approval on primary endpoint of CR from MIRACLE
2028 – Primary efficacy data for 2nd line subjects
2028 – Rolling NDA submission begins
Soft Tissue Sarcoma (STS) Lung Metastases

As previously announced, the Company completed enrollment in the Phase 2 portion of its U.S. Phase 1B/2 clinical trial evaluating Annamycin as monotherapy for the treatment of soft tissue sarcoma lung metastases. Subjects who had stable disease at the time of study discontinuation were followed for progression free response and overall survival. The clinical study report is finalized but has not yet been filed. The Company remains positive about the data and is expected to release the data by the end of June.

Expected Milestones for Annamycin STS Lung Mets Development Program

1H 2025 – Final MB-107 data readout
2025 – Identify next phase of development / pivotal IIT (investigator-initiated-trial) program
Annamycin (naxtarubicin) currently has Fast Track Status and Orphan Drug Designation from the FDA for the treatment of relapsed or refractory acute myeloid leukemia, in addition to Orphan Drug Designation for the treatment of soft tissue sarcoma. Furthermore, Annamycin has Orphan Drug Designation for the treatment of relapsed or refractory acute myeloid leukemia from the European Medicines Agency (EMA).

WP1066 & Brain Tumors

With regard to the Company’s WP1066 oral formula, the Company has an externally funded phase 1B/2 in combination with radiation treating glioblastoma (GBM), a form of brain cancer, at Northwestern University (Northwestern) that is actively recruiting. This is an investigator-initiated trial where Moleculin’s main cost is supplying drug product. To date Northwestern has recruited 7 subjects. No data has been released. Also, the Company has signed an agreement with Emory University enabling Emory to study various WP1066 IV formulations in preclinical studies with the goal of selecting the best molecule to move into a clinical setting towards, most likely, brain cancers such as GBM. Study drug was delivered in April 2025 to Emory with results from such studies expected in the second half of 2025.

Summary of Financial Results for the First Quarter 2025

Research and development (R&D) expense was $3.4 million and $4.3 million for the three months ended March 31, 2025 and 2024, respectively. The decrease of $0.9 million is mainly related to the clinical trials activity levels.

General and administrative expense was $2.5 million and $2.4 million for the three months ended March 31, 2025 and 2024, respectively. The increase of $0.1 million is mainly related to a slight overall increase in regulatory and legal fees.

As of March 31, 2025, the Company had cash and cash equivalents of $7.7 million and believes that the cash on hand is sufficient to fund planned operations into the third quarter of 2025.

Conference Call and Webcast

Moleculin management will host a conference call and live audio webcast to discuss the operational and financial results today, Wednesday, May 14, 2025 at 8:30 AM ET.

Interested participants and investors may access the conference call by dialing (877) 407-0832 (domestic) or (201) 689-8433 (international) and referencing the Moleculin Biotech Conference Call. The live audio webcast will be accessible on the Events page of the Investors section of the Moleculin website, moleculin.com, and will be archived for 90 days.