Clinigen: IL-2 Plays Role in Emerging TIL Therapies

On May 4, 2020 Clinigen Group plc (AIM: CLIN, ‘Clinigen’ or the ‘Group’), the global pharmaceutical and services company reported that presentation of results from the Phase I trial "Durable complete responses to adoptive cell transfer using tumor infiltrating lymphocytes (TIL) in non -small cell lung cancer (NSCLC) (Press release, Clinigen Group, MAY 4, 2020, View Source [SID1234556970])." Ben C. Creelan MD, MS from the Thoracic Oncology, Immunology Program of the Moffitt Cancer and Research Institute presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) virtual annual meeting on April 28, 2020. Eligibility criteria described in trial registry (NCT03215810).

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The objectives of the study were to evaluate the safety and efficacy of TIL therapy in metastatic NSCLC (mNSCLC) after evidence of progression on nivolumab*. The authors concluded that the Cy/Flu/TIL/IL-2 therapy has manageable toxicity and sustained activity in PD-1 experienced mNSCLC. It also was speculated that TIL may be a promising therapeutic option for certain mNSCLC patients.

Adoptive cellular therapy is a novel treatment which typically includes select lymphodepleting agents, autologous tumor infiltrating lymphocytes and Proleukin. This therapy currently is being studied in a range of tumors.

Shaun Chilton, Group Chief Executive Officer, Clinigen said:

"We applaud the Moffitt Cancer Center, Dr Creelan and co-investigators on this study and their work looking at this novel treatment in a cancer with such high unmet medical need. At Clinigen, we strive for solutions to improve people’s lives and are pleased with the role Proleukin is playing in the development of these emerging TIL therapies."

– Ends –

Notes to Editors

About TIL therapy

Adoptive cell therapy (ACT) using tumor-infiltrating lymphocytes (TIL) is a personalized cancer treatment based on the infusion of autologous CD4+ and CD8+ T lymphocytes expanded in-vitro from tumors in the presence of interleukin-2 (IL-2) 2 alone, or in combination with IL-7, IL-15, and/or IL-21. 3,4,5 The treatment may include high-dose lymphodepleting chemotherapy, the infusion of the expanded and activated T cells and interleukin-2 (IL-2) injections to increase survival of the T cells. 6 TIL therapy currently is being studied in a wide range of tumors.

About Proleukin

Proleukin is the first and only approved recombinant IL-2 indicated for the treatment of adults with metastatic renal cell carcinoma (mRCC) or metastatic melanoma (mM) by the US Food and Drug Administration (FDA). For further information, specific to the US product dosing and administration please visit www.proleukin.com. IL-2 is being studied in clinical development programs as a component of cell immunotherapies, including TIL therapy.

PharmaCyte Biotech Completes Medical Manual for IND Filing

On May 4, 2020 PharmaCyte Biotech, Inc. (OTCQB: PMCB), a biotechnology company focused on developing cellular therapies for cancer and diabetes using its signature live-cell encapsulation technology, Cell-in-a-Box, reported that it has completed a medical manual that is pivotal to the completion of its Investigational New Drug application (IND) filing (Press release, PharmaCyte Biotech, MAY 4, 2020, View Source [SID1234556969]). The manual, "Angiography Manual – Transarterial Chemoinfusion of the Pancreas" (Angiography Procedure Manual), will be used to guide Interventional Radiologists on the placement of a catheter that begins at the femoral artery in the leg and ends as close to the pancreatic tumor as possible in patients participating in PharmaCyte’s planned Phase 2b clinical trial. By following the directions in this manual, Interventional Radiologists will be able to precisely place the Cell-in-a-Box capsules inside patients.

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The Angiography Manual was prepared by a team of medical professionals. The initial version was prepared by Dr. David H. O’Leary, an Interventional Radiologist and Senior Vice President of the Medical Department at Medpace (PharmaCyte’s Contract Research Organization (CRO)). Dr. O’Leary’s version was then reviewed by Dr. Manuel Hidalgo, the Principal Investigator (PI) for PharmaCyte’s planned Phase 2b clinical trial for locally advanced, inoperable pancreatic cancer (LAPC), and Dr. Matthias Löhr, who was the PI for the first two clinical trials using PharmaCyte’s treatment for LAPC.

Dr. Jens-Christian Kröeger, who was the Interventional Radiologist during the two earlier clinical trials provided valuable assistance in the preparation of the Angiography Manual, and Dr. Löhr was able to work side-by-side with Dr. Kröeger as the angiography procedure was performed during those trials. A final review of the Angiography Manual was performed by Dr. Bradley Pua, an Interventional Radiologist with Weill Cornell Medicine and a colleague of Dr. Hidalgo.

Kenneth L. Waggoner, the Chief Executive Officer of PharmaCyte Biotech, stated, "We are deeply indebted to all of the physicians who contributed to the preparation of the Angiography Procedure Manual. This very important medical document makes up a crucial component of our IND and gets us one step closer to submitting our IND to the U.S. FDA, as we’re diligently completing the last remaining items for that submission."

VBL Therapeutics to Report First Quarter 2020 Financial Results on May 14

On May 4, 2020 VBL Therapeutics (Nasdaq: VBLT), a clinical-stage biotechnology company focused on the discovery, development and commercialization of first-in-class treatments for cancer, reported that it will host a conference call and live audio webcast on Thursday, May 14, 2020 at 8:30am Eastern Time to report first quarter ended March 31, 2020 financial results and to provide a corporate update (Press release, VBL Therapeutics, MAY 4, 2020, View Source [SID1234556968]).

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Thursday May 14th @ 8:30amET
From the US: 877-407-9208
International: 201-493-6784
Israel: 1 809 406 247
Conference ID: 13703295
Webcast: View Source

Menarini Group to Acquire Stemline Therapeutics in Transaction Valued at Up to $677 Million

On May 4, 2020 Menarini Group, a privately held Italian pharmaceutical and diagnostics company, and Stemline Therapeutics Inc., a commercial-stage biopharmaceutical company focused on the development and commercialization of novel oncology therapeutics, (Nasdaq: STML) reported a definitive agreement under which Menarini Group will acquire Stemline in a transaction valued up to $677 million (Press release, Menarini Group, MAY 4, 2020, View Source [SID1234556967]).

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Under the terms of the agreement, a wholly owned subsidiary of the Menarini Group will commence a tender offer for all outstanding shares of Stemline, whereby Stemline shareholders will be offered a total potential consideration of $12.50 per share, consisting of an upfront payment of $11.50 in cash and one non-tradeable Contingent Value Right (CVR) that will entitle each holder to an additional $1.00 in cash per share upon completion of the first sale of ELZONRIS in any EU5 country after European Commission approval. Stemline launched ELZONRIS for the treatment of blastic plasmacytoid dendritic cell neoplasm (BPDCN) in adult and pediatric patients, two years or older, following the approval by the United States Food and Drug Administration in December 2018. ELZONRIS is a novel targeted therapy directed to the interleukin-3 (IL-3) receptor-α (CD123).

With the support of Menarini’s infrastructure, Stemline will continue its efforts to develop additional applications of ELZONRIS to serve the unmet needs of patients suffering from difficult to treat diseases and cancers. Following its strong U.S. launch of ELZONRIS, Stemline will benefit from Menarini’s experience in bringing products to markets in Europe and emerging markets as it prepares for a successful international launch upon receipt of regulatory approval in ex-U.S. territories.

Elcin Barker Ergun, CEO of Menarini Group, commented, "Stemline is an excellent fit for Menarini, enabling us to expand our presence in the U.S. with an established biopharmaceutical company focused on developing oncology therapeutics. Through this acquisition, we will continue to strengthen our portfolio and pipeline of oncology assets and deliver novel therapies around the world. We look forward to uniting together with the Stemline team to advance our shared mission of serving patients."

Ivan Bergstein, M.D., Chairman, CEO and Founder of Stemline, said, "Joining Menarini represents a unique opportunity for Stemline to advance the commercialization of ELZONRIS across the globe and to accelerate the development of our pipeline of oncology assets. We have transitioned Stemline over the last several years into an established commercial-stage operation with a novel treatment, a growing pipeline and a strong foundation. We are excited to be combining with a like-minded organization in Menarini, in a transaction that will deliver immediate and significant cash value to our shareholders, while also allowing our shareholders to participate in the future upside of ELZONRIS’s European launch. We look forward to working closely together on our unified goal of helping and delivering hope to patients worldwide."

Transaction Terms

Under the terms of the agreement, a wholly owned subsidiary of the Menarini Group will commence a tender offer for all outstanding shares of Stemline, whereby Stemline shareholders will be offered a total potential consideration of $12.50 per share, consisting of an upfront payment of $11.50 per share in cash, along with one non-tradeable Contingent Value Right (CVR).

Under the terms of the non-tradeable CVR, Stemline shareholders will be paid an additional $1.00 per share upon completion of the first sale for use or consumption by the general public of ELZONRIS in BPDCN in any one of the following countries: United Kingdom, France, Spain, Germany, or Italy after receiving approval by the European Commission of a Marketing Authorization Application (MAA), through the centralized procedure, on or before December 31, 2021. There can be no assurance such approval or commercialization will occur or that any contingent payment will be made.

Menarini will acquire any shares of Stemline not tendered into the tender offer through a second-step merger for the same per share consideration as will be payable in the tender offer. The merger will be effected as soon as practicable after the closing of the tender offer.

The transaction has been unanimously approved by the Boards of Directors of both companies. Stemline’s Board of Directors recommends to shareholders of Stemline that they tender their shares into the tender offer. The transaction is expected to close in the second quarter of 2020, subject to customary closing conditions, including the tender of more than 50% of all shares of Stemline outstanding at the expiration of the offer and receipt of Hart-Scott-Rodino clearance. The terms and conditions of the tender offer will be described in the tender offer documents, which will be filed with the U.S. Securities and Exchange Commission.

Menarini expects to fund the acquisition through existing cash resources.

Advisors

Goldman Sachs International is acting as exclusive financial advisor and Fried, Frank, Harris, Shriver & Jacobson LLP is acting as legal advisor to Menarini. PJT Partners and BofA Securities are acting as financial advisors and Skadden, Arps, Slate, Meagher & Flom LLP and Alston & Bird LLP are acting as legal advisors to Stemline.

About ELZONRIS

ELZONRIS (tagraxofusp), a targeted therapy directed to CD123, is approved by the U.S. Food and Drug Administration (FDA) and commercially available in the U.S. for the treatment of adult and pediatric patients, two years or older, with BPDCN. For full prescribing information in the U.S., visit www.ELZONRIS.com. In Europe, a marketing authorization application (MAA) is under review by the European Medicines Agency (EMA).

About BPDCN

BPDCN, formerly blastic NK-cell lymphoma, is an aggressive hematologic malignancy, often with cutaneous manifestations, with historically poor outcomes. BPDCN typically presents in the bone marrow and/or skin and may also involve lymph nodes and viscera. The BPDCN cell of origin is the plasmacytoid dendritic cell (pDC) precursor. The diagnosis of BPDCN is based on the immunophenotypic diagnostic triad of CD123, CD4, and CD56, as well as other markers. The World Health Organization (WHO) termed this disease "BPDCN" in 2008; previous names included blastic NK cell lymphoma and agranular CD4+/CD56+ hematodermic neoplasm. For more information, please visit the BPDCN disease awareness website at www.bpdcninfo.com.

Oncolytics Biotech® to Present Clinical Findings of Pelareorep-Induced Immune Response in Breast Tumors at the ESMO Breast Cancer Virtual Meeting

On May 4, 2020 Oncolytics Biotech Inc. (NASDAQ: ONCY) (TSX: ONC), currently developing pelareorep, an intravenously delivered immuno-oncolytic virus, reported the publication of an abstract for an electronic-poster (ePoster) to be presented as part of the ESMO (Free ESMO Whitepaper) Breast Cancer Virtual Meeting on May 23 & 24, 2020 (Press release, Oncolytics Biotech, MAY 4, 2020, View Source [SID1234556966]). The abstract highlights preliminary data on viral replication and a pelareorep-induced adaptive immune response in tumors from the Company’s window-of-opportunity study, AWARE-1. The study combines the appropriate intervention for their breast cancer sub-type, plus pelareorep, with or without atezolizumab (Tecentriq), followed by surgery in early-stage breast cancer.

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The abstract, A window-of-opportunity study with atezolizumab and the oncolytic virus pelareorep in early breast cancer, was co-authored by Oncolytics Scientific Advisory Board member Dr. Aleix Prat, Head of Medical Oncology at the Hospital Clínic of Barcelona, Associate Professor of the University of Barcelona and the Head of the Translational Genomics and Targeted Therapeutics in Solid Tumors Group at August Pi i Sunyer Biomedical Research Institute (IDIBAPS), as well as several others at institutions across North America and Europe.

The Abstract reported that pelareorep treated patients experienced productive and tumor cell-specific pelareorep replication, an increase in CD8+ T cells, and an upregulation of the immune-checkpoint marker PD-L1. Four of the six patients exhibited an increase in tumor-associated cellularity and tumor-infiltrating lymphocytes (CelTIL), the primary endpoint, which is significant as an increase in CelTIL is associated with a favorable response to treatment. Importantly, our biomarker of T cell clonality was found to correlate with changes in the tumor microenvironment and CelTIL.

Abstracts are available in the ESMO (Free ESMO Whitepaper) Breast Cancer Virtual Meeting program at View Source . The poster will be added to the Oncolytics corporate website shortly after the virtual presentation.

Abstract ID: 485
Presentation Number: 41P
Session Name: ePoster (ID 19)
Section: Biomarkers and translational research and precision medicine
Abstract Title: A window-of-opportunity study with atezolizumab and the oncolytic virus pelareorep in early breast cancer (REO-027, AWARE-1)
Session Date and Time: May 23, 6:00 am ET – 2:00 pm ET & May 24, 6:00 am ET – 1:30 pm ET

About AWARE-1

AWARE-1 is an open label window-of-opportunity study in early stage breast cancer enrolling 38 patients into five cohorts:

Cohort 1 (n=10), HR+ / HER2- (pelareorep + letrozole)
Cohort 2 (n=10), HR+ / HER2- (pelareorep + letrozole + atezolizumab)
Cohort 3 (n=6), TNBC (pelareorep + atezolizumab)
Cohort 4 (n=6), HR+ / HER2+ (pelareorep + trastuzumab + atezolizumab)
Cohort 5 (n=6), HR- / HER2+ (pelareorep + trastuzumab + atezolizumab)
The study combines pelareorep with the standard of care according to breast cancer subtype and atezolizumab. Patients are biopsied on day one followed immediately by treatment, then again on day three, and a final biopsy after three weeks, on the day of their mastectomy. Data generated from this study is intended to confirm that the virus is acting as a novel immunotherapy and to provide comprehensive biomarker data by breast cancer sub-type. The primary endpoint of the study is overall CelTIL (a measurement of cellularity and tumor-infiltrating lymphocytes). Secondary endpoints for the study include CelTIL by breast cancer subtype, safety and tumor, and blood-based biomarkers.

About Breast Cancer

Breast cancer is the most common cancer in women worldwide, with over two million new cases diagnosed in 2018, representing about 25 percent of all cancers in women. Incidence rates vary widely across the world, from 27 per 100,000 in Middle Africa and Eastern Asia to 85 per 100,000 in Northern America. It is the fifth most common cause of death from cancer in women globally, with an estimated 522,000 deaths.

Breast cancer starts when cells in the breast begin to grow out of control. These cells usually form a tumor that can often be seen on an x-ray or felt as a lump. The malignant tumor (cancer) is getting worse when the cells grow into (invade) surrounding tissues or spread (metastasize) to distant areas of the body.

About Pelareorep

Pelareorep is a non-pathogenic, proprietary isolate of the unmodified reovirus: a first-in-class intravenously delivered immuno-oncolytic virus for the treatment of solid tumors and hematological malignancies. The compound induces selective tumor lysis and promotes an inflamed tumor phenotype through innate and adaptive immune responses to treat a variety of cancers and has been demonstrated to be able to escape neutralizing antibodies found in patients.