On April 9, 2025 Diakonos Oncology, a clinical-stage biotechnology company developing innovative immunotherapies for difficult-to-treat cancers, reported the successful presentation of an abstract at the 2025 American Academy of Neurology (AAN) Annual Meeting, which took place April 5-9, 2025, in San Diego, California (Press release, Diakonos Oncology, APR 9, 2025, View Source [SID1234651860]). The abstract presentation, titled "Phase I Analysis of DOC1021, a Cell-Based Vaccination Platform for Adjuvant Therapy of Glioblastoma", featured promising data from an open-label Phase I trial evaluating the safety, immunogenicity, and early efficacy signals of DOC1021.

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"We were honored to present our latest research at the American Academy of Neurology Annual Meeting," said Jay Hartenbach, President and Chief Operating Officer of Diakonos Oncology. "Glioblastoma remains one of the most aggressive and challenging cancers to treat, and we are committed to advancing novel immunotherapy approaches that have the potential to make a meaningful impact for patients. The results of this Phase I analysis are highly encouraging and reinforce the potential of DOC1021 as a novel immunotherapy for glioblastoma."

Abstract Presentation Details:

Title: Phase I Analysis of DOC1021, a Cell-Based Vaccination Platform for Adjuvant Therapy of Glioblastoma
Authors: Zhu J-J, Esquenazi-Levy Y, Hsu S, Zvavanjanja RC, Vu M, Schumann EH, Trivedi A, Liu W, Namekar M, Hofferek CJ, Ernste K, Mossop C, Clay CM, Amin S, Ravi V, Kemnade JO, Aguilar LK, Turtz A, Tandon N, Konduri V, Georges JF, Decker WK
Session: S29 – Neuro-oncology
Date and Time: Tuesday, April 8, from 4:06-4:18 p.m. PT
Location: San Diego Convention Center, 25C
Key Highlights:

DOC1021 vaccines were administered to 16 newly diagnosed glioblastoma patients, with 94% (15/16) being MGMT unmethylated.
No adverse events greater than Grade 2 attributable to the investigational regimen and no dose-limiting toxicities (DLTs) were observed.
CD4+ (13/13) and CD8+ (11/13) central memory T-cell compartments expanded post-vaccination (p<0.002 and p<0.05, respectively), indicating robust immune activation.
CD8+CD127+ memory precursor effector cells (MPECs) expanded in 12/13 patients (p<0.001), suggesting enhanced immune memory potential.
Spatial transcriptomics analysis of three patients showed intense CD25+ foci overlapping effector memory T-cell and migratory microglial markers post-vaccination.
One-year overall survival (OS) rate in the 15/16 unmethylated cohort was 88%, compared to 53% in an age-matched control cohort (p<0.002), highlighting a potential survival benefit.
"In the Phase I trial, the dendritic vaccine injections at the lymph nodes were well tolerated, with no significant side effects observed in any participants," said Dr. Jay-Jiguang Zhu, Principal Investigator of the study and Professor and Director of Neuro-oncology at UTHealth Houston. "We are looking forward to assessing this dendritic cell-based vaccine therapy in the upcoming Phase II trial."

About DOC1021

DOC1021 is an autologous dendritic cell vaccine (DCV) that initiates a complete cytotoxic TH1 immune response against a patient’s cancer through the company’s proprietary double loading technology. The vaccines are made with a patient’s dendritic cells combined with mRNA and proteins prepared from freshly obtained patients’ tumor specimens.

This unique approach unlocks a synergistic tumor killing TH1 response driven by dual protein and RNA antigen sourcing, and it allows targeting of the complete cancer antigen pool. Moreover, the approach does not require any molecular modification of the patient’s immune cells for manufacturing, and does not require preconditioning of bone marrow or high dose IL-2 for administration.

In addition to the lead GBM study, a clinical trial of another Diakonos dendritic cell vaccine is ongoing for the treatment of pancreatic cancer. Diakonos has received Fast Track designations from the FDA for both the GBM and pancreatic cancer programs. The company has also received Orphan Drug Designation for the GBM program.

On April 9, 2025 TC BioPharm (Holdings) PLC ("TC BioPharm" or the "Company") (OTC: TCBPY) a clinical-stage biotechnology company developing platform allogeneic gamma-delta T cell therapies for cancer and other indications, reported receipt of a patent, granted from the European Patent Office (EPO), for targeting microbial, oncological, and viral indications using modified gamma delta T cells (Press release, TC Biopharm, APR 9, 2025, View Source [SID1234651859]).

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The Company intends to proceed with the patent process in specific European countries, in alignment with the existing commercial strategy.

"The expanding patent portfolio secures our future development of high-value assets," said Bryan Kobel, CEO of TC BioPharm. "The potential for off-target recognition of healthy tissues limits the application of modified cell therapies. By refining the targeting of these modified cells, we can apply high-impact therapies to a broad spectrum of indications while mitigating the toxicity risks associated with modified cell therapies."

On April 9, 2025 Harbour BioMed (HKEX: 02142), a global biopharmaceutical company committed to the discovery and development of novel antibody therapeutics focusing on immunology and oncology, reported the appointment of Youchen (YC) Chen as Chief Financial Officer (Press release, Harbour BioMed, APR 9, 2025, View Source [SID1234651858]). YC will be based in Shanghai and Hong Kong SAR, and report directly to Dr. Jingsong Wang, Founder, Chairman, and CEO of Harbour BioMed.

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Since joining Harbour BioMed in 2023, YC has taken on increasing responsibilities across Investor Relations, Corporate Development, Business Development, and Finance. His strategic vision and collaborative leadership have significantly contributed to key strategic transactions, global partnerships and alliances, as well as global financial management and operations. In his new role, YC will continue to leverage his expertise to further enhance shareholder value and guide Harbour BioMed through its next phase of strategic development.

Before joining Harbour BioMed, YC served as Chief Financial Officer at a clinical-stage radiopharmaceutical startup. He was previously Vice President at Credit Suisse China Investment Banking and Capital Market team, advising healthcare and technology companies in Greater China on strategic and financing transactions. Prior to Credit Suisse, YC held multiple roles as Head of Corporate Finance at Yidu Tech (2158.HK) and Audit Assistant Manager at KPMG.

Dr. Jingsong Wang, Founder, Chairman, and CEO of Harbour BioMed, commented: "YC has brought a strong strategic mindset and deep financial expertise to Harbour BioMed. His ability to lead cross-functional initiatives and drive value creation has made a significant impact across the organization. I’m confident that in his new role as Chief Financial Officer, he will continue to strengthen our financial foundation and support our long-term growth."

Youchen Chen, Chief Financial Officer of Harbour BioMed, added: "I’m honored to take on the role of Chief Financial Officer at Harbour BioMed. It’s been a privilege to work alongside such a dedicated and visionary team. I look forward to continuing our efforts to advance the company’s strategic objectives, deliver value to our stakeholders, and support our mission of transforming innovation into impactful therapies."

YC holds a bachelor’s degree in law from Fudan University and an MBA from the McDonough School of Business at Georgetown University. He is also currently pursuing an advanced degree at Harvard Medical School.

On April 9, 2025 Halozyme Therapeutics, Inc. (NASDAQ: HALO) (Halozyme) reported that Janssen-Cilag International NV, a Johnson & Johnson company, received European Commission (EC) approval for an indication extension of DARZALEX (daratumumab) subcutaneous (SC) co-formulated with ENHANZE in the frontline setting (Press release, Halozyme, APR 9, 2025, View Source [SID1234651857]). The approval is for daratumumab SC in combination with bortezomib, lenalidomide, and dexamethasone (daratumumab-VRd) for the treatment of adult patients with newly diagnosed multiple myeloma.1

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"The continued expansion of DARZALEX delivered subcutaneously with ENHANZE into additional settings highlights its status as a cornerstone of therapy for multiple myeloma," said Dr. Helen Torley, President and CEO of Halozyme. "This approval means that newly diagnosed patients can receive daratumumab subcutaneous plus VRd and avoid the need for lengthy IV infusions."

This approval follows the indication extension approval for daratumumab-VRd in October 2024, for the treatment of newly diagnosed patients with multiple myeloma who are eligible for autologous stem cell transplant, based on the results from the Phase 3 PERSEUS (NCT03652064) study. The study evaluated this daratumumab SC-based quadruplet regimen for induction and consolidation therapy, followed by daratumumab SC and lenalidomide maintenance.2,3

1 European Medicines Agency. DARZALEX (daratumumab) Summary of Product Characteristics. April 2025.

2 Rodríguez-Otero P, et al. Daratumumab (DARA) + bortezomib/lenalidomide/dexamethasone (VRd) in transplant-eligible (TE) patients (pts) with newly diagnosed multiple myeloma (NDMM): Analysis of minimal residual disease (MRD) in the PERSEUS trial. 2024 American Society for Clinical Oncology Annual Meeting. June 3, 2024.

3 Johnson & Johnson Innovative Medicine EMEA. DARZALEX (daratumumab)-SC based quadruplet regimen approved by the European Commission for patients with newly diagnosed multiple myeloma who are transplant-eligible. Available at: View Source Last accessed: April 2025.

On April 9, 2025 Tempest Therapeutics, Inc. (Nasdaq: TPST), a clinical-stage biotechnology company developing first-in-classi targeted and immune-mediated therapeutics to fight cancer, reported that the company plans to explore a full range of strategic alternatives to advance its promising clinical stage programs and maximize stockholder value (Press release, Tempest Therapeutics, APR 9, 2025, View Source [SID1234651856]). Strategic alternatives under consideration may include, but are not limited to, mergers, acquisition, partnerships, joint ventures, licensing arrangements or other strategic transactions. The company has retained MTS Health Partners, L.P., an internationally recognized financial advisor with substantial experience in the biotechnology industry, to support it with the strategic evaluation process.

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"Notwithstanding the positive randomized data set from the amezalpat Phase 2 and its blockbuster potential in first-line HCC, as well as the potential of TPST-1495 as it moves towards a Phase 2 in FAP, the capital markets have been unavailable to support the next stage of advancement," said Stephen Brady, president and chief executive officer of Tempest. "We are initiating a process to explore alternatives available to the company to maximize stockholder value, which include finding a strategic partner with the resources to develop what we believe are potentially life-saving therapies for patients in need. Given the positive data and commercial potential with this pipeline, as well as the clearance from FDA on the lead program’s pivotal study, we believe this is a rare opportunity for a partner."

The company has not set a timetable for completion of the process for evaluating strategic alternatives and does not intend to disclose further developments or guidance on the status of its programs or the process for evaluating strategic alternatives unless and until it is determined that further disclosure is appropriate or necessary. No agreement providing for any transaction has been reached and there can be no assurances that any transaction will result from the process for evaluating strategic alternatives. If the process for evaluating strategic alternatives results in an agreement regarding a transaction, there can be no assurances that any transaction will be completed.

Program Milestones and Status

Amezalpat (TPST-1120) (clinical PPARα antagonist):

Granted both Orphan Drug and Fast Track designations by the U.S. Food and Drug Administration (FDA) for amezalpat for the treatment of patients with HCC.
Received a "Study May Proceed" letter from the FDA to evaluate amezalpat in combination with atezolizumab (TECENTRIQ) and bevacizumab (Avastin), the current standard of care for unresectable or metastatic HCC, in a pivotal Phase 3 trial for the first-line treatment of unresectable or metastatic HCC.
Announced an agreement with F. Hoffmann-La Roche Ltd. (Roche) to advance the evaluation of amezalpat in combination with atezolizumab and bevacizumab into a pivotal Phase 3 trial for the first-line treatment of unresectable or metastatic HCC.
Announced positive feedback from the end-of-Phase 2 meeting with the FDA for amezalpat in combination with atezolizumab and bevacizumab to treat first-line unresectable or metastatic HCC.
Reported new positive survival data from the ongoing global randomized Phase 1b/2 clinical study demonstrating that amezalpat delivered a six-month improvement in median overall survival (OS) when combined with atezolizumab and bevacizumab in comparison to atezolizumab and bevacizumab alone, the standard of care, in the first-line treatment of patients with unresectable or metastatic HCC.
Published positive data from the Phase 1 trial of amezalpat in patients with advanced solid tumors in the Journal of Cancer Research Communications. Data showed that amezalpat demonstrated clinical activity, including tumor shrinkage, even in PD-1 inhibitor-refractory and immune-compromised cancers. These data complement the positive Phase 1b/2 data reported in October 2023 and June 2024 from a global randomized study of amezalpat in combination with atezolizumab and bevacizumab in first-line patients with advanced HCC.
Reported new preclinical data at the 2024 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting demonstrating that amezalpat reduced kidney cancer growth as a monotherapy, while also showing increased inhibition when combined with frontline chemotherapy and immunotherapy.
TPST-1495 (clinical dual EP2/4 prostaglandin receptor antagonist):

Granted Orphan Drug designation by the FDA for TPST-1495 for the treatment of patients with FAP.
Received a "Study May Proceed" letter from the FDA to evaluate TPST-1495 in a Phase 2 trial for the treatment of FAP.
About Amezalpat (TPST-1120)

Amezalpat is an oral, small molecule, selective PPAR⍺ antagonist. Data suggest that amezalpat treats cancer by targeting tumor cells directly and by modulating immune suppressive cells and angiogenesis in the tumor microenvironment. In an ongoing global randomized Phase 1b/2 study of amezalpat in combination with atezolizumab and bevacizumab in first-line patients with advanced HCC, the amezalpat arm showed clinical superiority across multiple study endpoints, including overall survival in both the entire population and key subpopulations, when compared to atezolizumab and bevacizumab alone, the standard of care. These randomized data were supported by additional positive results observed in the Phase 1 clinical trial in patients with heavily pretreated advanced solid tumors, including renal cell carcinoma and cholangiocarcinoma.

About TPST-1495

TPST-1495 is a novel, highly selective and potent EP2-EP4 dual antagonist designed to block the cancer-promoting EP2 and EP4 receptors in the prostaglandin (PGE2) pathway, while sparing the homologous but differentially active EP1 and EP3 receptors. PGE2 signaling through EP2 and EP4 has been observed to enhance tumor progression through the stimulation of tumor proliferation, enhanced angiogenesis and suppression of immune function in the tumor microenvironment. The Phase 2 study of TPST-1495 in patients with FAP is expected to begin in 2025 under the auspices of the Cancer Prevention Clinical Trials Network and funded by the National Cancer Institute (NCI) Division of Cancer Prevention.