On September 18, 2023 ESSA Pharma Inc. ("ESSA", or the "Company") (NASDAQ: EPIX), a clinical-stage pharmaceutical company focused on developing novel therapies for the treatment of prostate cancer, reported the initiation of the Phase 2 portion of its Phase 1/2 study evaluating its lead candidate, masofaniten (formerly known as EPI-7386), a first-in-class N-terminal domain androgen receptor inhibitor, in combination with Astellas and Pfizer’s antiandrogen enzalutamide in patients with metastatic castration-resistant prostate cancer ("mCRPC") naïve to second-generation antiandrogens (Press release, ESSA, SEP 18, 2023, View Source [SID1234635220]).

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Updated results from the first four cohorts of patients from the Phase 1 dose escalation portion of the Phase 1/2 study have been selected for a poster presentation at the upcoming European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper) ("ESMO") Congress taking place October 20-24, 2023, in Madrid, Spain.

"Initiation of the randomized Phase 2 portion of this study investigating the combination of masofaniten and enzalutamide (the "Combination") is a significant milestone for ESSA and we look forward to reporting updated results from the Phase 1 dose equilibration portion of the study next month at ESMO (Free ESMO Whitepaper) 2023," stated David Parkinson, M.D., President and CEO of ESSA. "The favorable safety profile observed to date with the Combination has led the safety review board to agree that we can proceed forward into the head-to-head comparison portion of the study with the dose regimen studied in Cohort 4 as our recommended Phase 2 dose. We look forward to further elucidating the Combination’s potential to improve long-term clinical benefit for patients with mCRPC. We plan to provide guidance for timing of the public disclosure of initial data once the Phase 2 portion has been underway for several months."

The Phase 2 dose expansion portion of the study is a two-arm, randomized, open-label study (NCT05075577) that will evaluate the safety, tolerability and preliminary efficacy of masofaniten, and is expected to enroll approximately 120 patients. Patients will continue to receive androgen deprivation therapy and will be randomized 2:1 to receive either the combination of masofaniten (600mg twice-daily ("BID")) and enzalutamide (160mg once daily ("QD")) or enzalutamide (160mg QD) as a single agent. Patients may remain on study treatment as long as they are tolerating treatment without disease progression based on RECIST v1.1 and/or Prostate Cancer Clinical Trials Working Group 3 (PCWG3) criteria.

Details for the ESMO (Free ESMO Whitepaper) 2023 Presentation
Title: Phase 1/2 Trial of Oral EPI-7386 in Combination with Enzalutamide (Enz) Compared to Enz Alone in Metastatic Castration-Resistant Prostate Cancer (mCRPC) Subjects: Current Phase 1 (P1) results
Speaker: Andrew L. Laccetti
Presentation #: 1813P
Date: Sunday, October 22, 2023

About Masofaniten
Masofaniten (formerly known as EPI-7386) is a first-in-class investigational, highly selective, oral, small molecule inhibitor of the N-terminal domain ("NTD") of the androgen receptor ("AR"). Masofaniten’s unique mechanism of action disrupts the AR signaling pathway, the primary pathway that drives prostate cancer growth, by selectively binding to the NTD, a region of the AR that is not currently targeted by other therapies. Masofaniten is currently being studied in an open-label, randomized Phase 2 clinical trial (NCT05075577) in combination with enzalutamide in patients with metastatic castration-resistant prostate cancer (mCRPC) naïve to second-generation antiandrogens. ESSA is also conducting a Phase 1 monotherapy study (NCT04421222) in patients with mCRPC whose tumors have progressed on standard-of-care therapies. The U.S. Food and Drug Administration has granted Fast Track designation to masofaniten for the treatment of adult male patients with mCRPC resistant to standard-of-care treatment. ESSA retains all rights to masofaniten worldwide.

On September 18, 2023 Nuvalent, Inc. (Nasdaq: NUVL), a clinical-stage biopharmaceutical company focused on creating precisely targeted therapies for clinically proven kinase targets in cancer, reported it will present preliminary dose-escalation data from its ongoing ALKOVE-1 Phase 1/2 clinical trial of NVL-655 at the 35th AACR (Free AACR Whitepaper)-NCI-EORTC (ANE) Symposium taking place October 11-15, 2023, in Boston, Massachusetts (Press release, Nuvalent, SEP 18, 2023, View Source [SID1234635219]).

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The presentation marks the first disclosure of data characterizing the safety and clinical activity of NVL-655 from the Phase 1 dose-escalation portion of the ongoing ALKOVE-1 Phase 1/2 clinical trial evaluating NVL-655 in patients with advanced ALK-positive non-small cell lung cancer (NSCLC) and other solid tumors. NVL-655 has been designed with the aim to address challenges that limit clinical use of existing ALK tyrosine kinase inhibitors (TKIs), including treatment emergent resistance mutations, lack of brain penetrance, and off-target CNS adverse events. The ALKOVE-1 clinical trial is continuing to enroll patients in the Phase 1 portion of the trial.

Nuvalent plans to host a conference call and webcast on October 13, 2023. Details for the conference call will be provided at a future date and available on the Nuvalent website at www.nuvalent.com.

Details for the presentation are as follows:

Title: Safety and preliminary activity of the selective ALK inhibitor NVL-655 in patients with ALK fusion-positive solid tumors
Abstract Number: 35177
Poster Number: B154
Session: Poster Session B
Session Date and Time: Friday, October 13, 12:30 pm-4:00 pm
Presenting Author: Jessica J Lin, Massachusetts General Hospital (MGH), Boston, MA

About NVL-655

NVL-655 is a novel brain-penetrant ALK-selective inhibitor created to overcome limitations observed with currently available ALK inhibitors. NVL-655 is designed to remain active in tumors that have developed resistance to first-, second-, and third-generation ALK inhibitors, including tumors with the solvent front G1202R mutation or compound mutations G1202R / L1196M ("GRLM"), G1202R / G1269A ("GRGA"), or G1202R/L1198F ("GRLF"). NVL-655 has been optimized for CNS penetrance to improve treatment options for patients with brain metastases. NVL-655 has been observed in preclinical studies to selectively inhibit wild-type ALK and its resistance variants over the structurally related tropomyosin receptor kinase (TRK) family to potentially avoid TRK-related CNS adverse events seen with dual TRK/ALK inhibitors and drive more durable responses for patients. NVL-655 is currently being investigated in the ALKOVE-1 clinical trial (NCT05384626), a first-in-human Phase 1/2 clinical trial for patients with advanced ALK-positive non-small cell lung cancer (NSCLC) and other solid tumors.

On September 18, 2023 Medigene AG (Medigene, the "Company", FSE: MDG1, Prime Standard), an immuno-oncology platform company focusing on the discovery and development of T cell immunotherapies for solid tumors, reported that it has selected its lead candidate for MDG2011, a T cell receptor engineered T cell (TCR-T) therapy targeting KRAS (Kirsten rat sarcoma viral oncogene homologue) G12V with HLA-A*11 and being developed in combination with the Company’s PD1-41BB costimulatory switch protein (CSP) technology (Press release, MediGene, SEP 18, 2023, View Source [SID1234635218]).

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Medigene’s end-to-end (E2E) platform, has successfully generated not one but three KRAS G12V-HLA-A*11 TCRs, each with distinct, multiple HLA-A*11 subtype recognition patterns that exceed the Company’s selection criteria for highly specific, sensitive and potentially safer (3S) TCRs. After deploying Medigene’s proprietary algorithms for evaluation of the unique characteristics of each of the 3S TCRs, including peptide specificity, tumor cell recognition and off-target toxicity, the Company has prioritized one of the 3S TCRs as the lead to move forward to the pre-clinical stage for Medigene’s MDG2011 program.

"The unique approach of our E2E platform to generate and optimize 3S TCRs, has continued to deliver above expectations and we are delighted to have been presented with the positive challenge of having to select a lead from three strong candidates for our MDG2011 program targeting KRAS G12V-A11," said Dr. Selwyn Ho, Chief Executive Officer at Medigene.

"The selection of this first mKRAS (mutant KRAS) lead TCR further validates our capabilities to generate 3S TCRs across both neoantigens and cancer-testis antigens. By combining all our TCRs with our PD1-41BB or CD40L-CD28 costimulatory switch proteins, we remain convinced that our approach will consistently deliver best-in-class TCR-T therapies leading to improved outcomes for patients suffering from difficult-to-treat solid tumors. We look forward to presenting the first pre-clinical data on MDG2011 at upcoming scientific conferences in the last quarter of 2023."

The Company’s E2E platform continues to generate 3S TCRs with unique attributes that add additional dimensions to the potential of Medigene’s TCR-T therapies as well as to confirm the Company’s discovery research efforts. One such attribute is the identification of a TCR candidate demonstrating bi-specific recognition for both the KRAS G12V and G12C mutations. Directed TCR discovery efforts in the future will enable identification of an optimal KRAS G12C-specific TCR lead. The two remaining KRAS G12V-A11 TCRs not selected for the MDG2011 program will be added to Medigene’s KRAS TCR library for potential future programs that align the product vision with the profile of each TCR. Patents have been filed for each of the three TCRs.

MDG2011 is the first program of Medigene’s pipeline expansion into a library of neoantigens (also known as oncogenic driver mutations) that comprise multiple KRAS mutations and HLAs (human leukocyte antigens) including, but not limited to:

KRAS G12V-HLA-A*11 (MDG2011)
KRAS G12V-HLA-A*03 (MDG2012)
KRAS G12D-HLA-A*11 (MDG2021)

These TCRs will be combined with the PD1-41BB and/or the CD40L-CD28 costimulatory switch proteins to enhance penetration, proliferation, persistence and enhanced cytotoxic function of Medigene’s TCR-T cells while mitigating the immunosuppressive effects of the tumor microenvironment.

Neoantigens are tumor-specific antigens, which play a critical role in the growth and maintenance of tumors. These mutations are found in many solid tumors and their prevalence varies depending on the cancer type. Importantly, if present, these mutations are found in each tumor cell. KRAS mutations are widely recognized as the most common oncogene mutations in difficult to treat solid tumors existing in ~30% of solid tumors, such as pancreatic, colorectal, endometrial and non-small-cell lung cancer. Global incidence of solid tumors expressing KRAS mutations is estimated to be in excess of 300,000 patients.

On September 18, 2023 POINT Biopharma Global Inc. (NASDAQ: PNT) (the "Company" or "POINT"), a company accelerating the discovery, development, and global access to life-changing radiopharmaceuticals, and Athebio AG ("Athebio"), an innovation leader in the discovery and design of designed ankyrin repeat proteins (DARPins), reported a collaboration and license agreement to develop and commercialize DARPin-targeted radioligands ("Radio-DARPins") (Press release, Point Biopharma, SEP 18, 2023, View Source [SID1234635217]).

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DARPins are an attractive ligand class for cell-surface targets that could enable access to cell "surfaceome" targets beyond catalytic and ligand binding sites typically accessible to small molecules and peptides. DARPins combine the small molecule feature of rapid tumor penetration and clearance from the body, with the antibody-like ability of binding to a wider range of proteins and other cell surface targets. Their well-behaved and customizable formatting options, including stability at high concentrations and temperatures, are expected to facilitate rapid discovery, validation, and commercial scale manufacturing applicable to fast (212Pb) and slower (177Lu, 225Ac) decaying isotopes.

The collaboration gives POINT exclusive access to Athebio’s intellectual property and capabilities in DARPin development in the radioligand therapy field. Together, the parties will collaborate in discovery, candidate selection and preclinical development of Athebody DARPins for use as Radio-DARPin drug entities. POINT will be solely responsible for the clinical development and commercialization of Radio-DARPins translated from the discovery collaboration.

"The holy grail of radioligand development is the ability to engineer ligands that can precisely deliver radiation and also have physical properties that are resistant to radiolytic damage, enabling them to be manufactured at scale," said Joe McCann, Ph.D., Chief Executive Officer of POINT Biopharma. "DARPins represent a potential goldilocks opportunity in this regard, and could unlock new cell surface targets creating a new horizon for the development of novel targeted radioligand therapies. I am excited by this collaboration with Athebio, experts in DARPin technology, as it further expands our library of tools to engineer next-generation radioligands."

"We are very excited to join forces with POINT. POINT is uniquely positioned in the radiotherapy field and just as committed as we are to unlock the full potential of Athebody DARPins to develop radiopharmaceuticals for patients in need," said Patrik Forrer, one of the inventors of the DARPin technology and CEO and Chairman of Athebio. "The exceptional properties of our Athebody DARPins make them ideally suited for targeting radioisotopes. In particular their high stability should allow for simple conjugation to radioisotopes and their small size and high affinity binding with precise specificity should allow for superior targeting of tumors. The convergence of these attributes holds immense promise for pushing the boundaries of radiotherapy."

Terms were not disclosed.

On September 18, 2023 Werewolf therapeutics presented its corporate presentation (Presentation, Werewolf Therapeutics, SEP 18, 2023, View Source [SID1234635214]).

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