Microbiotica reveals novel mechanisms showing how the microbiome can improve immunotherapy response based on MB097, a clinical-stage drug candidate being evaluated in combination with KEYTRUDA® (pembrolizumab) in patients with advanced melanoma

On April 29, 2025 Microbiotica, a clinical-stage biopharma company developing a pipeline of oral precision microbiome medicines called live biotherapeutic products (LBPs), reported new data on the mechanism of action of MB097 at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) annual meeting held in Chicago, April 25-30 (Press release, Microbiotica, APR 29, 2025, View Source [SID1234652313]). MB097 is an LBP in development as a co-therapy for immune checkpoint inhibitors (CPI) such as MSD’s (Merck & Co., Inc., Rahway, NJ, USA) anti-PD-1 therapy, KEYTRUDA (pembrolizumab).

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The composition of a patient’s intestinal microbiome is known to impact the response to immunotherapies, most noticeably CPI, but the mechanisms are poorly understood. MB097 comprises nine different species of gut commensal bacteria, all linked to positive CPI response in multiple clinical studies. Microbiotica has developed in vitro human systems using primary immune cells to investigate how gut bacteria modulate the immune response to cancer. These assays have demonstrated that three of the MB097 strains induce dendritic cells to produce high levels of IL-12, which in turn stimulates Cytotoxic T Lymphocytes and NK cells with potent tumour cell killing activity. Dr Mat Robinson, Microbiotica’s Senior Vice-President Research, presented these novel findings in a poster entitled ‘Clinical response to immune checkpoint inhibitors in melanoma is associated with distinct gut bacterial species that promote anti-tumour immunity by different mechanisms’. The poster can be accessed here.

Dr Mat Robinson, Microbiotica’s SVP Research, said, "These exciting results start to unravel the complex biology of how gut commensal bacteria drive immune checkpoint inhibitor responses. The induction of dendritic cells to produce IL-12 complement the recently reported data showing that other MB097 strains release metabolites that enhance immune-mediated cancer cell killing. Together, these findings demonstrate that the different strains within MB097 can interact with the immune system of cancer patients in multiple ways to enhance immunotherapy efficacy."

MB097 is being tested in an international Phase 1b clinical study, in combination with KEYTRUDA (pembrolizumab), MSD’s anti-PD-1 therapy, in patients with cutaneous melanoma who have failed to respond to immunotherapies. Data readout is expected by the end of 2025.

D3 Bio Announces Nature Medicine Publication and AACR 2025 Presentation Highlighting D3S-001 as a Next-Generation KRAS G12C Inhibitor with Best-in-Class Potential

On April 29, 2025 D3 Bio, a clinical-stage biotechnology company pioneering precision oncology therapies, reported the simultaneous publication of landmark clinical data on its lead investigational drug D3S-001 in Nature Medicine and oral presentation of updated results at the 2025 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting (Press release, D3 Bio, APR 29, 2025, View Source [SID1234652334]). These data affirm D3S-001’s differentiated mechanism of action, favorable safety profile and compelling efficacy in patients with KRAS G12C mutation–addicted cancers, including patients previously treated with first-generation KRAS G12C inhibitors.

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Promising Efficacy in G12Ci-Naïve and Resistant Patients

In a Phase 1a/1b clinical study (NCT05410145), D3S-001 demonstrated an overall objective response rate (ORR) of 73.5% in KRAS G12C inhibitor-naïve patients across multiple tumor types, including:

66.7% in non–small cell lung cancer (NSCLC)
88.9% in colorectal cancer (CRC)
75.0% in pancreatic ductal adenocarcinoma (PDAC)
Additionally, in 20 patients with NSCLC who had previously been treated with and progressed on first-generation G12C inhibitors, including sotorasib and adagrasib, D3S-001 achieved a 30.0% overall response rate (ORR) and 80.0% disease control rate (DCR), providing direct clinical evidence of its ability to overcome acquired resistance to first-generation G12Ci therapies.

"These findings demonstrate that D3S-001 fulfills the defining qualities of a next-generation KRAS G12C inhibitor: fast and complete target engagement, favorable safety, consistent and promising efficacy across all tumor types, brain penetration, and ability to overcome first-generation resistance," said Byoung Chul Cho, MD, PhD, lead and co-supervisory author and Professor and Head of Yonsei Cancer Center, Yonsei University College of Medicine. "We believe it is a truly new-generation KRAS G12C inhibitor with the potential to overcome the limitations of the first-generation inhibitors and become a cornerstone therapy for KRAS G12C-driven cancers."

AACR 2025 Data Highlights the Activity of D3S-001 in Overcoming Resistance in Patients with NSCLC Who Have Progressed on First-Generation G12C Inhibitors

At AACR (Free AACR Whitepaper) 2025, D3 Bio shared updated results from a Phase 2 expansion cohort of NSCLC patients who had previously been treated with FDA-approved or other experimental G12C inhibitors. The compound demonstrates encouraging clinical benefits in this patient population. The data include:

60% of patients experienced tumor shrinkage
30% achieved partial responses
80% disease control rate
11 of 14 ctDNA-positive patients achieved >90% G12C MAF reduction, with 6 achieving partial response (a 43% response rate in the ctDNA-positive population)
Responses were observed in patients with KRAS G12C amplification, a known resistance mechanism to first-generation inhibitors, consistent with previous preclinical observations
The results support D3S-001’s unique ability to overcome molecular resistance in a population with urgent unmet medical needs.

"The clinical data, published at Nature Medicine and presented at AACR (Free AACR Whitepaper), validates D3S-001 as a promising treatment for patients with KRAS G12C–driven tumors, both naïve and refractory, to first-generation inhibitors," said Tony Mok, MD, co-supervisory author of the Nature Medicine paper, Professor of Clinical Oncology at the Chinese University of Hong Kong, and a global thought leader in targeted therapy for lung cancer. "Its potential to induce compelling responses in these challenging cases offers hope for a patient population with limited treatment options."

"At D3 Bio, we believe that solid science, combined with strong collaboration with global thought leaders, is the foundation for driving the field forward," said George Chen, MD, Founder, Chairman, and CEO of D3 Bio. "Our Cancer Discovery paper reported the new mechanism and properties of D3S-001 in preclinical settings, and now we are excited to witness the nearly seamless translation of these important features into the clinic. The continued clinical advancement of D3S-001 reflects not only the innovation behind its design, but also the strength of these collaborations to bring meaningful therapies to patients worldwide."

About D3S-001

D3S-001 is a next-generation KRAS G12C inhibitor designed to achieve rapid and complete KRAS G12C target engagement. In preclinical investigations, D3S-001 has demonstrated high covalent potency, complete engagement of KRAS G12C at clinically relevant doses and CNS penetration properties. D3S-001 is currently in a Phase II global clinical trial in patients with advanced solid tumors harboring KRAS G12C mutations, including NSCLC, CRC, and other tumor types. Key publications:

D3S-001, a KRAS G12C Inhibitor with Rapid Target Engagement Kinetics, Overcomes Nucleotide Cycling, and Demonstrates Robust Preclinical and Clinical Activities. Cancer Discov (2024) 14 (9): 1675–1698.
D3S-001 in advanced solid tumors with KRAS G12C mutations. Nature Medicine (View Source)

Disc Medicine to Host Webinar with Key Opinion Leaders on Anemia of Myelofibrosis (MF)

On April 29, 2025 Disc Medicine, Inc. (NASDAQ:IRON), a clinical-stage biopharmaceutical company focused on the discovery, development, and commercialization of novel treatments for patients suffering from serious hematologic diseases, reported it will host a virtual KOL investor event on Friday, May 9 at 1:00 PM ET / 10:00 AM PT to provide an overview of anemia of myelofibrosis (MF) and discuss the evolving treatment landscape for this disease (Press release, Disc Medicine, APR 29, 2025, View Sourcenews-releases/news-release-details/disc-medicine-host-webinar-key-opinion-leaders-anemia" target="_blank" title="View Sourcenews-releases/news-release-details/disc-medicine-host-webinar-key-opinion-leaders-anemia" rel="nofollow">View Source [SID1234653894]). The event will also include an overview of Disc’s clinical data and development plans for DISC-0974 in MF anemia.

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Intended for investors and other interested audiences, the virtual event will feature presentations from leading experts on myeloproliferative neoplasms (MPNs), including MF. The KOL speakers will provide an overview of MF anemia, its epidemiology, pathogenesis, and impact on patients, then discuss the current and emerging therapeutic landscape for MF and highlight the clear unmet need for anemia-focused treatments. Invited speakers include:

Dr. Aaron Gerds, M.D., M.S., a hematologist-oncologist at Cleveland Clinic and associate professor at Case Western University School of Medicine, where he runs the cancer center’s Clinical Research Office. Dr. Gerds has been a principal investigator in various clinical trials for MPNs.
Dr. Prithviraj Bose, M.D., a professor at MD Anderson Cancer Center with a focus on MPNs. Dr. Bose has been a leader in multiple clinical trials in myelofibrosis.
Members of Disc’s leadership team will review the therapeutic rationale for DISC-0974, summarize clinical data from the Phase 1b trial of DISC-0974 in MF anemia originally presented at the 2024 American Society of Hematology (ASH) (Free ASH Whitepaper) annual meeting, discuss the design for its ongoing Phase 2 trial, and reiterate expected timing for an interim Phase 2 data readout in 2025. Management will also provide a view of the expected market opportunity and positioning for DISC-0974 in MF anemia.

A live webcast of the event will be available in the Events and Presentations section of the Investor Relations page of Disc’s website (View Source). A webcast replay will be available after the live presentation and will be accessible for 90 days. Please register for the event on the Events and Presentations page of Disc’s website (View Source).

About DISC-0974

DISC-0974 is an investigational monoclonal antibody (mAb) targeting a BMP-signaling co-receptor called hemojuvelin (HJV) and is designed to suppress hepcidin production and increase serum iron levels in patients suffering from anemia of inflammation. DISC-0974 was in-licensed by Disc from AbbVie in 2019. Anemia of inflammation arises from abnormally elevated hepcidin and is the second most common form of anemia, affecting millions of patients in the US across numerous diseases, such as chronic kidney disease, myelofibrosis, cancer, autoimmune diseases, and other conditions with an inflammatory component. Disc has established clinical proof-of-mechanism of DISC-0974 in a Phase 1 trial of healthy volunteers, completed a Phase 1b clinical trial in patients with myelofibrosis and anemia, and initiated a Phase 2 clinical trial of DISC-0974 in patients with MF anemia, as well as a Phase 1b/2a clinical trial of DISC-0974 in patients with chronic kidney disease and anemia who are not receiving dialysis.

DISC-0974 is an investigational agent and is not approved for use as a therapy in any jurisdiction worldwide.

About Anemia of Myelofibrosis

Myelofibrosis (MF) is a rare, chronic blood cancer that currently affects an estimated 25,000 patients in the United States alone. Severe, progressive, and treatment resistant anemia is a primary clinical manifestation of MF. At diagnosis, over 80% of MF patients have anemia, which progressively worsens and ultimately renders the majority of patients dependent on chronic red blood cell transfusions. Recent studies have shown hepcidin to be a key molecular driver of anemia in myelofibrosis. Hepcidin is elevated by approximately 12-fold in MF patients, and is correlated with disease severity, anemia, and the need for red blood cell transfusions.

Novartis continues strong momentum with double-digit sales growth, robust margin expansion and multiple approvals in Q1

On April 29, 2025 Novartis reported that commenting on Q1 2025 results, Vas Narasimhan, its CEO said (Press release, Novartis, APR 29, 2025, View Source [SID1234652258]):

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"Novartis has had a strong start to the year, delivering a +15% cc increase in sales and a +27% cc rise in core operating income in Q1. Our priority brands, including Kisqali, Kesimpta and Leqvio, continue to show strong momentum, which we anticipate will drive our growth through 2030 and beyond. We also achieved significant innovation milestones in the quarter, with new approvals for Pluvicto in the pre-taxane setting, Vanrafia for IgA nephropathy, and Fabhalta for C3G. Additionally, we completed global submissions for remibrutinib in CSU, the first indication for this promising pipeline-in-a-pill. We remain focused on advancing our leading pipeline and confident in achieving our growth outlook."

Key figures
Q1 2025 Q1 2024 % change
USD m USD m USD cc
Net sales to third parties 13 233 11 829 12 15
Operating income 4 663 3 373 38 44
Net income 3 609 2 688 34 37
EPS (USD) 1.83 1.31 40 42
Free cash flow 3 391 2 038 66
Core operating income 5 575 4 537 23 27
Core net income 4 482 3 681 22 26
Core EPS (USD) 2.28 1.80 27 31
1. Constant currencies (cc), core results and free cash flow are non-IFRS measures. An explanation of non-IFRS measures can be found on page 31 of the Condensed Interim Financial Report. Unless otherwise noted, all growth rates in this Release refer to same period in prior year. 2. Please see detailed guidance assumptions on page 5.

Strategy
Our focus
Novartis is a "pure-play" innovative medicines company. We have a clear focus on four core therapeutic areas (cardiovascular-renal-metabolic, immunology, neuroscience and oncology), with multiple significant in-market and pipeline assets in each of these areas, that address high disease burden and have substantial growth potential. In addition to two established technology platforms (chemistry and biotherapeutics), three emerging platforms (gene & cell therapy, radioligand therapy and xRNA) are being prioritized for continued investment into new R&D capabilities and manufacturing scale. Geographically, we are focused on growing in our priority geographies – the US, China, Germany and Japan.

Our priorities
Accelerate growth: Renewed attention to deliver high-value medicines (NMEs) and focus on launch excellence, with a rich pipeline across our core therapeutic areas.
Deliver returns: Continuing to embed operational excellence and deliver improved financials. Novartis remains disciplined and shareholder-focused in our approach to capital allocation, with substantial cash generation and a strong capital structure supporting continued flexibility.
Strengthen foundations: Unleashing the power of our people, scaling data science and technology and continuing to build trust with society.
Financials
Net sales were USD 13.2 billion (+12%, +15% cc), with volume contributing 15 percentage points to growth. Generic competition had a negative impact of 2 percentage points and pricing had a positive impact of 2 percentage points, benefiting from revenue deduction adjustments mainly in the US.

Operating income was USD 4.7 billion (+38%, +44% cc), mainly driven by higher net sales, partly offset by higher investments behind priority brands and launches.

Net income was USD 3.6 billion (+34%, +37% cc), mainly driven by higher operating income, partly offset by higher income taxes. EPS was USD 1.83 (+40%, +42% cc), benefiting from the lower weighted average number of shares outstanding.

Core operating income was USD 5.6 billion (+23%, +27% cc), mainly driven by higher net sales, partly offset by higher investments behind priority brands and launches, and R&D investments. Core operating income margin was 42.1% of net sales, increasing 3.7 percentage points (4.0 percentage points cc).

Core net income was USD 4.5 billion (+22%, +26% cc), mainly due to higher core operating income. Core EPS was USD 2.28 (+27%, +31% cc), benefiting from the lower weighted average number of shares outstanding.

Free cash flow amounted to USD 3.4 billion (+66% USD), compared with USD 2.0 billion in the prior-year quarter, driven by higher net cash flows from operating activities.

Q1 priority brands
Underpinning our financial results in the quarter is a continued focus on key growth drivers (ranked in order of contribution to Q1 growth) including:

Entresto (USD 2 261 million, +22% cc) sustained robust, demand-led growth globally, including in China and Japan with increased penetration in hypertension
Kisqali (USD 956 million, +56% cc) sales grew strongly across all regions, including +87% growth in the US with strong momentum from the recently launched early breast cancer indication as well as continued share gains in metastatic breast cancer
Kesimpta (USD 899 million, +43% cc) sales grew across all regions driven by increased demand and strong access
Cosentyx (USD 1 534 million, +18% cc) sales grew mainly in the US, emerging growth markets and Europe, driven by recent launches as well as volume growth in core indications
Leqvio (USD 257 million, +72% cc) continued steady growth, with a focus on increasing account and patient adoption, and continuing medical education
Scemblix (USD 238 million, +76% cc) sales grew across all regions, demonstrating the continued high unmet need in CML and strong momentum from the recently launched early-line indication in the US
Fabhalta (USD 81 million) sales grew driven by continued launch execution across all markets in PNH as well as the recent launch in IgAN in the US
Pluvicto (USD 371 million, +21% cc) continued stable performance in the US and grew in Europe in the mCRPC post-taxane setting. With the FDA’s approval for earlier use before chemotherapy, which approximately triples the eligible patient population, the focus is on driving demand in established RLT sites while activating new sites and supporting referring providers to enable patient access
Zolgensma (USD 327 million, +13% cc) sales grew as it continues to demonstrate strong performance in the incident population
Lutathera (USD 193 million, +15% cc) sales grew mainly in the US, Europe and Japan due to increased demand and earlier line adoption particularly in the US and Japan
Net sales of the top 20 brands in the first quarter
Q1 2025 % change
USD m USD cc
Entresto 2 261 20 22
Cosentyx 1 534 16 18
Kisqali 956 52 56
Kesimpta 899 41 43
Tafinlar + Mekinist 552 16 19
Promacta/Revolade 546 5 8
Jakavi 492 3 7
Xolair 456 14 19
Ilaris 419 18 20
Tasigna 377 -5 -2
Pluvicto 371 20 21
Zolgensma 327 11 13
Sandostatin Group 317 -11 -9
Leqvio 257 70 72
Scemblix 238 75 76
Lutathera 193 14 15
Lucentis 189 -40 -38
Exforge Group 179 -7 -1
Diovan Group 150 7 12
Galvus Group 124 -17 -11
Top 20 brands total 10 837 17 19
R&D update – key developments from the first quarter
New approvals
Pluvicto
(lutetium Lu177 vipivotide tetraxetan) FDA expanded the indication for Pluvicto to include patients with PSMA-positive metastatic castration-resistant prostate cancer (mCRPC) who have been treated with an androgen receptor pathway inhibitor and are considered appropriate to delay chemotherapy, approximately tripling the eligible patient population.
Vanrafia
(atrasentan) FDA granted an accelerated approval for Vanrafia for the reduction of proteinuria in adults with primary immunoglobulin A nephropathy (IgAN) at risk of rapid disease progression. Vanrafia can be seamlessly added to supportive care in IgAN and used as a foundational therapy.
Fabhalta
(iptacopan) Fabhalta was approved by the US FDA, European Commission and China’s NMPA for adult patients with C3 glomerulopathy (C3G), making it the first and only treatment approved for this condition in all three markets.
Regulatory updates
Remibrutinib Regulatory submissions for remibrutinib for the treatment of chronic spontaneous urticaria (CSU) were completed in the US, EU and China. A priority review voucher was used in the US and approval is anticipated in H2 2025, and priority review was granted in China.
Scemblix
(asciminib) Regulatory submission for Scemblix in adults with newly diagnosed CML was completed in the EU based on 96-week data from the Phase III ASC4FIRST study.
Results from ongoing trials and other highlights
OAV101 IT
(onasemnogene
abeparvovec) Novartis announced positive safety and efficacy results from the Phase III program for investigational intrathecal OAV101 IT in a broad population of patients aged two to <18 years with spinal muscular atrophy (SMA). In the Phase III STEER study, treatment with OAV101 IT led to a statistically significant and clinically meaningful 2.39-point improvement on the Hammersmith Functional Motor Scale Expanded vs. 0.51 points in the sham control arm. In addition, in the Phase IIIb STRENGTH study, treatment with OAV101 IT in patients who have discontinued treatment with nusinersen or risdiplam demonstrated stabilization of motor function over 52 weeks of follow-up. OAV101 IT demonstrated a favorable safety profile, consistent in both treatment-naïve and treatment-experienced patients. Data were presented at MDA.
Remibrutinib The New England Journal of Medicine published data from the 24-week double-blind placebo-controlled period of the Phase III REMIX-1 and -2 studies. Remibrutinib showed early symptom improvement and sustained efficacy, with improvements in CSU symptoms compared to placebo observed as early as week 1 and response rate maintained through the double-blind treatment period. Remibrutinib was well tolerated, with overall adverse event rates comparable to placebo.

Multiple analyses of the REMIX-1 and -2 trials were presented at medical congresses in Q1. At AAAAI, long-term results showed that patients experienced improved urticaria control within two weeks of starting treatment. Patients who switched from placebo to remibrutinib at week 24 achieved similar improvements through week 52. At AAD, data was presented showing that treatment with remibrutinib had positive effects on sleep and daily activities for CSU patients.
Ianalumab The results of Phase II VAYHIT3 study in adult patients with advanced primary ITP, previously treated with at least a corticosteroid and a thrombopoietin receptor agonist, indicate that a short course of ianalumab has clinically meaningful efficacy and is well tolerated in these patients. These results will be presented at a future medical meeting and are expected to support a filing in second-line ITP, based on the Phase III VAYHIT2 study, expected to read out in H2 2025.
Selected transactions Novartis has completed the acquisition of Anthos Therapeutics, a clinical-stage biopharmaceutical company developing abelacimab, a potential first-in-class monoclonal antibody targeting the FXI inhibition pathway in development for the prevention of stroke and systemic embolism in patients with atrial fibrillation. The acquisition adds a Phase III asset and is aligned with the Novartis growth strategy and expertise in the cardiovascular therapeutic area.
Capital structure and net debt
Retaining a good balance between investment in the business, a strong capital structure, and attractive shareholder returns remains a priority.

In Q1 2025, Novartis repurchased a total of 24.8 million shares for USD 2.6 billion on the SIX Swiss Exchange second trading line under the up-to USD 15 billion share buyback announced in July 2023 (with up to USD 2.7 billion still to be executed). In addition, 1.5 million shares (equity value of USD 0.2 billion) were repurchased from employees. In the same period, 10.5 million shares (equity value of USD 0.3 billion) were delivered to employees related to equity-based compensation plans. Novartis aims to offset the dilutive impact from equity-based compensation plans of employees over the remainder of the year. Consequently, the total number of shares outstanding decreased by 15.8 million versus December 31, 2024. These treasury share transactions resulted in an equity decrease of USD 2.5 billion and a net cash outflow of USD 2.7 billion.

Net debt increased to USD 22.3 billion at March 31, 2025, compared with USD 16.1 billion at December 31, 2024. The increase was mainly due to the free cash flow of USD 3.4 billion being more than offset by the USD 5.3 billion annual net dividend payment in March (which is the gross dividend of USD 7.8 billion reduced by the USD 2.5 billion Swiss withholding tax that was paid in April 2025, according to its due date), cash outflows for treasury share transactions of USD 2.7 billion and cash outflows for purchases of intangible assets of USD 1.2 billion.

As of Q1 2025, the long-term credit rating for the company is Aa3 with Moody’s Ratings and AA- with S&P Global Ratings.

2025 outlook
Barring unforeseen events; growth vs. prior year in cc
Net sales Expected to grow high single-digit
Core operating income Expected to grow low double-digit
Key assumptions:

We assume Tasigna, Promacta and Entresto US generic entry mid-2025 for forecasting purposes
Foreign exchange impact
If late-April exchange rates prevail for the remainder of 2025, the foreign exchange impact for the year would be 0 percentage points on net sales and negative 2 percentage points on core operating income. The estimated impact of exchange rates on our results is provided monthly on our website.

Key figures1
Q1 2025 Q1 2024 % change
USD m USD m USD cc
Net sales to third parties 13 233 11 829 12 15
Operating income 4 663 3 373 38 44
As a % of sales 35.2 28.5
Net income 3 609 2 688 34 37
EPS (USD) 1.83 1.31 40 42
Net cash flows from operating activities 3 645 2 265 61
Non-IFRS measures
Free cash flow 3 391 2 038 66
Core operating income 5 575 4 537 23 27
As a % of sales 42.1 38.4
Core net income 4 482 3 681 22 26
Core EPS (USD) 2.28 1.80 27 31
1. Constant currencies (cc), core results and free cash flow are non-IFRS measures. An explanation of non-IFRS measures can be found on page 31 of the Condensed Interim Financial Report. Unless otherwise noted, all growth rates in this Release refer to same period in prior year.

Detailed financial results accompanying this press release are included in the Condensed Interim Financial Report at the link below:
View Source

Moleculin Announces New Pre-Clinical Data for Annamycin Demonstrating Market Expansion Potential Including Treatment for Pancreatic Cancer

On April 29, 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 that an abstract and poster presentation regarding the Company’s next-generation anthracycline, Annamycin, was presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2025, on April 28, 2025, at the McCormick Place Convention Center in Chicago, IL (Press release, Moleculin, APR 29, 2025, View Source [SID1234652314]).

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"The case for expanding the potential markets for Annamycin continues to get stronger," said Walter Klemp, Chairman and CEO of Moleculin. "In an environment where more and more cancer treatment regimens are combinations of two or more drugs, it is encouraging to see that Annamycin appears capable of generating synergistic results with so many commonly used drugs. The latest research continues to support our view that, in addition to hematological malignancies, solid cancers including sarcoma and pancreatic cancer also represent important expansion opportunities for Annamycin. These findings may help expand the clinical use of Annamycin and consequently make our drug candidate even more attractive to prospective future partners. With five previous or current investigator-initiated clinical trials supporting development of our drug candidates, we believe that our next investigator-initiated trials could be Annamycin for the treatment of pancreatic cancer or advance soft tissue sarcomas."

The study, presented in poster form, was designed to assess the efficacy of Annamycin in combination with approved anticancer agents in order to identify novel potentially highly efficacious clinical applications of Annamycin alone and with a therapeutic partner. Annamycin in its non-liposomal form (free drug; in vitro) and Liposomal Annamycin (L-ANN; in vivo) were tested in combination with selected US Food and Drug Administration (FDA) approved drugs. Usually, the most efficacious drug combinations from the in vitro studies were then tested using well developed in vivo models of leukemia and solid tumors, including sarcoma and pancreatic cancer.

It should be noted that in a separate set of previous experiments, Annamycin activity was tested in vitro, and appeared to be highly active, against drug resistant cell lines, including cells resistant to cytarabine and venetoclax.

The research shown in the AACR (Free AACR Whitepaper) poster, described below, demonstrates that Annamycin is potentially a highly versatile drug capable of working synergistically with numerous mechanistically different FDA approved anticancer agents both in vitro and in vivo. Ongoing studies are working towards identifying new efficacious clinical applications of L-ANN drug combinations with the long-term goal of developing novel therapeutic strategies for treatment resistant cancers.

Details of the poster presentation are as follows:

Title: Combining Annamycin, a Non-cardiotoxic Potent Topo II Poison, with Azacitidine, Cytarabine, Gemcitabine, Ifosfamide, Trabectedin, or Vincristine to Synergize Anticancer Effects and Identify Potential Clinical Applications
Track: Experimental and Molecular Therapeutics
Session: PO.ET02.03. Drug Combination Strategies for Cancer Treatment
Abstract Number: 1683/ 14
Presenter: Waldemar Priebe, Ph.D., Department of Experimental Therapeutics, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center

For more information, visit the AACR (Free AACR Whitepaper) Annual Meeting website.