On June 28, 2018 BioAtla, LLC, a global biotechnology company focused on the development of Conditionally Active Biologic (CAB) protein therapeutics, reported the treatment of the first patient in its clinical trial BA3021-001 for BioAtla’s BA3021, a novel conditionally active ROR2-targeted antibody-drug conjugate (CAB-ROR2-ADC) (Press release, BioAtla, JUN 28, 2018, View Source [SID1234527502]). This is a multi-center, open-label, Phase 1/2 study designed to evaluate the safety, tolerability, pharmacokinetics, immunogenicity and antitumor activity of BA3021 in patients with advanced solid tumors including non-small cell lung cancer (NSCLC), triple negative breast cancer and soft tissue sarcoma. CAB-ROR2-ADC is BioAtla’s second CAB investigational product to enter clinical trials following BA3011, CAB-AXL-ADC in February of this year.

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The first patient in the BA3021 clinical study was enrolled and dosed at Sarah Cannon Research Institute at Tennessee Oncology in Nashville, TN under the direction of the principal investigator, Howard A. "Skip" Burris III, MD. Dr. Burris, a recognized leader in clinical oncology, serves as chief medical officer and president of clinical operations at Sarah Cannon. "Innovative advancements in the treatment of cancer include tumor specific activation of therapy and promoting appropriate immune response. Providing access to cutting-edge therapies in clinical trials, such as the BA3021 clinical study, further supports our mission to advance care for cancer patients," said Dr. Burris.

The ROR2 transmembrane protein tyrosine kinase is an onco-fetal protein that acts as a non-canonical Wnt 5A receptor. ROR2 is found to be highly expressed during embryonic development and in several important cancer types, and the level of expression in tumors is tightly correlated with patient prognosis. Recently, ROR2 and its ligand Wnt 5A have been shown to be induced in cancers that are resistant to treatment with immune checkpoint inhibitors such as anti-PD-1 antibody immune therapy suggesting a mechanistic role of this receptor-ligand axis in resistance to standard cancer treatments resulting in relapsing, minimal residual disease. However, low to moderate levels of expression of ROR2 in multiple normal adult tissues are predicted based on RNA expression, histological analysis and functional studies. To minimize the risk of potential disruption of normal function of ROR2 receptors on normal cells, BioAtla applies its proprietary CAB technology to develop its CAB antibody-drug conjugate (ADC) targeting ROR2 with the intent to activate binding to the ROR2 receptor only in the tumor microenvironment and deliver the toxic payload to the cancerous cells. The CAB-ROR2-ADC BA3021 is designed to maximize efficacy on ROR2 expressing tumors while minimizing toxicity, leading to better clinical outcomes.

About Conditionally Active Biologics (CABs)

Conditionally Active Biologic proteins are generated using BioAtla’s proprietary protein discovery, evolution and expression technologies. These proteins can be monoclonal antibodies, enzymes and other proteins designed with functions dependent on changes in microphysiological conditions (e.g., pH level, oxidation, temperature, pressure, presence of certain ions, hydrophobicity and combinations thereof) both outside and inside cells.

Studies have shown that cancerous tumors create highly specific conditions at their site that are not present in normal tissue. These cancerous microenvironments are primarily a result of the well understood unique glycolytic metabolism associated with cancer cells, referred to as the Warburg Effect. CAB proteins are designed to deliver their therapeutic payload and/or recruit the immune response in specific and selected locations and conditions within the body and to be active only in the presence of a particular cellular microenvironment. In addition, the activation is designed to be reversible to repeatedly switch ‘on and off’ should the CAB move from a diseased to a normal cellular microenvironment and vice versa. CABs can be developed in a variety of formats including antibodies, antibody drug conjugates (ADCs), bi-specifics, chimeric antigen receptor T-cells (CAR-Ts) and combination therapies.

On June 28, 2018 MolMed S.p.A. (MLMD.MI), a medical biotechnology company focusing on research, development, manufacturing, and clinical validation of cell & gene therapies to treat cancer and rare diseases and AbCheck s.r.o., a technology company focusing on the discovery and optimization of high-quality human antibodies, reported that they have entered into a three-year Master Agreement aimed at providing MolMed with selected and optimized antibodies for the development of new Chimeric Antigen Receptors (CARs), targeting both liquid and solid tumors (Press release, MolMed, JUN 28, 2018, View Source [SID1234527504]).

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Under the agreement, AbCheck will use its proprietary discovery platform to select, optimize and deliver multiple human single-chain variable fragments (scFvs), specifically recognizing each MolMed target candidate. ScFvs are the extracellular regions of the CAR responsible for antigen recognition and binding, conferring specificity to the CAR.

The new and optimized scFvs delivered by AbCheck will allow MolMed to expand its proprietary pipeline in both autologous CAR-T and future allogenic CAR-NK platforms.

Riccardo Palmisano, MolMed CEO, commented: "This new collaboration plays a key role to complete the picture of the planned and announced enlargement of our CAR pipeline. Leveraging on the unique experience that we developed on CAR T CD44v6, now close to clinical stage in acute myeloid leukemia and multiple myeloma and on the recently signed partnership with Glycostem, with this agreement with AbCheck, a company with extensive expertise in antibodies selection and boasting partnerships with relevant companies and institutions in the CAR field, MolMed is fully prepared to build a robust autologous and allogeneic original CAR T pipeline, able to target both liquid and solid tumors".

Volker Lang, Managing Director of AbCheck, added: "AbCheck is recognized for its proven capability to reliably deliver high-quality human antibodies suitable for clinical development. We are very pleased to employ our unique technology suite to support MolMed’s dedicated team in adding novel therapeutic options to its diverse pipeline. Both CAR-Ts and CAR-NKs represent promising novel immuno-oncology approaches and we are confident that AbCheck’s abilities in antibody discovery and optimization will be an important asset in developing such approaches."

On June 27, 2018 Pfizer Inc. (NYSE:PFE) reported that the U.S. Food and Drug Administration (FDA) accepted the company’s New Drug Application and granted Priority Review designation for glasdegib, an investigational oral smoothened (SMO) inhibitor, being evaluated for the treatment of adult patients with previously untreated acute myeloid leukemia (AML) in combination with low-dose cytarabine (LDAC), a type of chemotherapy (Press release, Pfizer, JUN 27, 2018, View Source [SID1234527490]).

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"Patients with acute myeloid leukemia who are ineligible for intensive chemotherapy are in critical need of new treatment options to improve their overall survival," said Mace Rothenberg, M.D., chief development officer, Oncology, Pfizer Global Product Development. "In an investigational Phase 2 study, glasdegib in combination with low-dose cytarabine showed a significant improvement in overall survival compared to patients who received low-dose cytarabine alone. Glasdegib is the first smoothened inhibitor to potentially offer such a benefit to patients with acute myeloid leukemia, and we are proud that our application was accepted by the FDA for Priority Review."

The FDA grants Priority Review designation to medicines that may offer significant advances in treatment or may provide a treatment where no adequate therapy exists. The Prescription Drug User Fee Act (PDUFA) goal date for a decision by the FDA is in December 2018.

The submission is based on results from the Phase 2 BRIGHT 1003 study, a randomized, open-label, multicenter trial investigating glasdegib combined with LDAC (n=88) versus LDAC alone (n=44) in 132 patients with previously untreated AML or high-risk myelodysplastic syndrome (MDS) who were not eligible for intensive chemotherapy. Results demonstrated a significant improvement in the primary endpoint of overall survival (OS). Median OS was 8.8 months for patients treated with glasdegib plus LDAC compared with 4.9 months for patients treated with LDAC only. This difference represented a 49.9 percent reduction in the risk of death for patients treated with glasdegib plus LDAC (HR: 0.501, 95% CI: 0.334, 0.752, one-sided p-value 0.0003). The BRIGHT 1003 results were presented in 2016 at the 58th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting.

The most frequently (≥30% of patients) reported adverse events (AEs) in patients treated with glasdegib plus LDAC compared to LDAC alone were anemia (45% vs 42%), febrile neutropenia (36% vs 27%), nausea (36% vs 12%), decreased appetite (32% vs 12%), fatigue (31% vs 20%) and thrombocytopenia (30% vs 27%). The most frequently (≥15% of patients) reported serious AEs for patients treated with glasdegib plus LDAC compared to LDAC alone were febrile neutropenia (29% vs 20%) and pneumonia (21% vs 17%).

About Glasdegib

Glasdegib is an investigational, oral, once-daily therapy that is thought to inhibit the SMO receptor, thereby disrupting the Hedgehog pathway. Abnormal Hedgehog pathway activation is thought to play a role in the development of multiple types of cancers, including solid tumors and hematologic malignancies. It has not received regulatory approval in any country.

The Phase 3 BRIGHT AML 1019 trial (NCT03416179), which is evaluating the addition of glasdegib to intensive or non-intensive chemotherapy in patients with newly diagnosed AML, began enrolling earlier this year.

About Acute Myeloid Leukemia

Acute myeloid leukemia (AML) is the most common type of acute leukemia in adults and accounts for approximately 80 percent of all cases of acute leukemia.1 An estimated 19,520 people are expected to be diagnosed with AML in the U.S. in 2018.1 Despite recent advancements, only approximately one in four patients with AML survive longer than five years, and additional treatment options are needed to reduce incidence of disease progression and relapse.2,3 This is especially true for patients who are unable to receive intensive chemotherapy and are triaged to other treatments associated with poorer outcomes.

On June 27, 2018 Oxford Vacmedix, the UK based biopharma company focused on the development of a new generation of cancer vaccines, reported that its novel Recombinant Overlapping Peptide (ROP) technology had been presented at the 2018 Myongji International Cancer Symposium .

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The meeting was held in Seoul, South Korea and focused on new horizons in the development of treatments for cancer on immunotherapy and on precision medicine. Other speakers included researchers from the MayoClinic and the University of Chicago in the US as well as from St Luke’s International hospital in Japan.

Dr. Jiang, CSO and Founder of Oxford Vacmedix (OVM) and a researcher in the Department of Oncology at University of Oxford, presented the role of TNF as a potential target for cancer therapy and the exciting preclinical data of OVM’s leading development programmes for two Cancer vaccines. OVM-100 is an HPV vaccine targetedat cervicalcancer,and OVM-200 represents a new type of vaccine utilising survivin to target solid tumours. Bothvaccines are being developed as single agents and in combination with immuno-oncology agents. The company will also continue to develop its diagnostic kits for cellular immunity.

William Finch, CEO of Oxford acmedix said: "We were very pleased to present ROP technology at this important meeting and to have the opportunity to discuss the novel research and the exciting development programme which could lead to significant benefit for patients with cancer"

Wang-Jun Lee, Chairman of Myongji Hospital Group, added: "We are delighted DrJiang could participate in this meeting and we look forward to a productive collaborations with OVM especially in research and in clinical trials. We are confident that we can support the continued growth and development of the company"

On June 27, 2018 Purdue Pharma L.P. reported successful completion of a first-in-human Phase 1 dose escalation study of tinostamustine in patients with relapsed or refractory hematological malignancies for which there are no available therapies (Press release, Purdue Pharma, JUN 27, 2018, View Source [SID1234527497]). The study evaluated the safety and pharmacokinetics, and sought to determine the maximum tolerated dose and inform a Phase 2 dose of tinostamustine. 1

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The multi-acting therapy candidate tinostamustine, previously known as EDO-S101, is a novel and potentially first-in-class alkylating deacetylase inhibitor (AK-DACi) therapy being studied for its potential to improve access to the DNA strands within cancer cells, break them, and counteract the cancer cells’ attempt to repair the DNA damage. It is in development for a range of rare or difficult to treat blood cancers and solid tumors. Based on the results of this Phase I human trial, Purdue will support advancement of tinostamustine into further clinical studies.

"We are pleased with the outcome of this promising early stage oncology program and we believe it has the potential to make meaningful clinical contributions in areas with significant unmet needs," said Craig Landau, MD, president and CEO, Purdue Pharma. "In addition to our established commitments in oncology and neuroscience, we are actively seeking opportunities to collaborate across a number of therapeutic areas as part of our ongoing efforts to diversify our scientific research and bring therapies to market that may improve outcomes for patients."

The reported completion of this study is the first clinical update since Purdue announced in November 2017 significant oncology-related investments to establish a portfolio of drug candidates with the potential to deliver new cancer therapies, in areas of high unmet medical need, to physicians and patients. As part of these investments, Purdue is currently supporting research for four drug candidates across 14 different cancer types. Research on these compounds is being advanced on behalf of Purdue by Mundipharma EDO.

In addition to tinostamustine, Purdue’s clinical stage oncology portfolio includes etoposide toniribate, a novel target-activated topoisomerase inhibitor that delivers the chemotherapy etoposide to tumors in an inactive form where it is ‘switched on’ by enzymes called carboxylesterases. Purdue also has two late pre-clinical stage antibody-drug conjugates, EDO-B776 and EDO-B278, in development. EDO-B776 is being studied for its potential to target the cancer antigen 125 (CA-125) in ovarian cancer. EDO-B278, which targets human tissue factor, is in development for treatment of various solid tumors.

The decision to move tinostamustine into Phase 1 human trials was supported by preclinical studies, which suggest that tinostamustine may deliver both alkylating activity and pan-histone deacetylase (HDAC) inhibition to improve access to the DNA strands within cancer cells, break them, and counteract the cancer cells’ attempt to repair the DNA damage.

Purdue will also continue to selectively seek additional oncology product assets through licensing and acquisition, and the company will maintain a priority interest in candidates with mechanisms complementary to emerging immuno-oncology based treatment paradigms