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 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 CytRx Corporation (NASDAQ: CYTR), a biopharmaceutical research and development company specializing in oncology, reported that aldoxorubicin licensee NantCell, Inc., a private subsidiary of NantWorks, LLC, has dosed the first patient in the Phase 1b portion of a Phase 1b/2 clinical trial for patients with triple negative breast cancer (TNBC) (Press release, CytRx, JUN 28, 2018, View Source [SID1234527501]). This is the third trial conducted by NantCell which will investigate aldoxorubicin combined with immunotherapy or high-affinity natural killer (haNK) cell therapy in certain high unmet need cancer indications.The first trial in pancreatic cancer patients commenced in January 2018and the second trial, for patients with advanced squamous cell carcinoma, commenced in February 2018.

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Eric Curtis, CytRx’s President and Chief Operating Officer stated, "The initiation of this third clinical trial speaks to NantCell’s commitment to investigating aldoxorubicin in combination with their proprietary haNK cell therapy and working to identify effective treatment alternatives for women challenged by TNBC, an aggressive, difficult to treat type of breast cancer."

The trial titled "QUILT-3.067 NANT Triple Negative Breast Cancer (TNBC) Vaccine: Molecularly Informed Integrated Immunotherapy in Subjects With TNBC Who Have Progressed on or After Standard-of-care Therapy," (NCT03387085) is a single-center, open-label, Phase 1b/2 clinical trial designed to evaluate the safety and efficacy of several combination therapies, including combinations with aldoxorubicin, in subjects with TNBC who have progressed on or after standard of care therapies. This trial is expected to enroll approximately 79 patients. The primary endpoint for the Phase 1b portion of the trial is safety and the primary endpoint for the Phase 2 portion of the trial is objective response rate (ORR) by RECIST.

About Triple Negative Breast Cancer

Triple-negative breast cancer (TNBC) is a particularly aggressive form of cancer whose cells do not have estrogen, progesterone, or receptors of the HER2 protein. According to the National Institutes of Health, it is estimated that between 10 and 20 percent of breast cancer patients are diagnosed with TNBC and approximately 170,000 cases of TNBC have been reported annually worldwide, with higher rates among women under 50 years old and women of African American or Hispanic background. The disease may also be associated with inherited mutations in the BRCA1 gene.

On June 28, 2018 Seattle Genetics, Inc. (Nasdaq: SGEN) reported that it will report its second quarter financial results on Thursday, July 26, 2018 after the close of financial markets (Press release, Seattle Genetics, JUN 28, 2018, View Source;p=RssLanding&cat=news&id=2356365 [SID1234527500]). Following the announcement, company management will host a conference call and webcast discussion of the results and provide a general corporate update. Access to the event can be obtained as follows:

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LIVE access on Thursday, July 26, 2018
1:30 p.m. Pacific Time / 4:30 p.m. Eastern Time

Telephone 877-260-1479 (domestic) or +1 334-323-0522 (international); conference ID 6908320
Webcast available at www.seattlegenetics.com in the Investors section
REPLAY access

Telephone replay will be available beginning at approximately 4:30 p.m. PT on Thursday, July 26, 2018 through 5:00 p.m. PT on Monday, July 30, 2018 by calling 888-203-1112 (domestic) or +1 719-457-0820 (international); conference ID 6908320
Webcast replay will be available on the Seattle Genetics website at www.seattlegenetics.com in the Investors section

On June 28, 2018 Cellectar Biosciences, Inc. (Nasdaq: CLRB), a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of targeted treatments for cancer, reported that the company will expand patient enrollment in the diffuse large b-cell lymphoma (DLBCL) cohort of its currently enrolling Phase 2 clinical trial of CLR 131 (Press release, Cellectar Biosciences, JUN 28, 2018, View Source [SID1234527499]).

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The response rate of the DLBCL cohort exceeded pre-specified criteria. As a result, the company will expand the cohort up to an additional 30 patients. This group represents the second of four cohorts to be expanded in this Phase 2 study. Previously the company announced the expansion of the study’s multiple myeloma (MM) cohort. Additional updates on the two remaining select B-cell lymphoma cohorts will be provided when data are available.

"Relapse or refractory DLBCL is an aggressive cancer and the initial response rates from the cohort leave us optimistic in CLR 131’s potential to have a positive impact on patients with life-threatening hematologic cancers. We continue to see clinical benefit using CLR 131 across a range of cancer types and we look forward to providing future data updates on this indication and others," stated James Caruso, president and chief executive officer of Cellectar Biosciences.

About the Phase 2 Study of CLR 131

The Phase 2 study is being conducted in approximately 10 leading cancer centers in the United States for patients with relapsed or refractory B-cell hematologic cancers. The hematologic cancers being studied include (MM, chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), lymphoplasmacytic lymphoma (LPL), marginal zone lymphoma (MZL), mantle cell lymphoma (MCL), and potentially diffuse large B-cell lymphoma (DLBCL).

The study’s primary endpoint is clinical benefit response (CBR), with additional endpoints of progression free survival (PFS), median overall survival (OS) and other markers of efficacy following a single 25.0 mCi/m2 dose of CLR 131, with the option for a second 25.0 mCi/m2 dose approximately 75-180 days later.

In addition to the CLR 131 infusion(s), MM patients will receive 40 mg oral dexamethasone weekly for up to 12 weeks. Efficacy responses will be determined by the latest International Multiple Myeloma Working Group criteria. Efficacy for all lymphoma patients will be determined according to Lugano criteria. Cellectar has been awarded approximately $2 million in a non-dilutive grant from the National Cancer Institute to help fund the trial. More information about the trial, including eligibility requirements, can be found at www.clinicaltrials.gov, reference NCT02952508.

About Diffuse Large B-Cell Lymphoma

According to the Lymphoma Research Foundation, diffuse large B-cell lymphoma (DLBCL) is an aggressive form of non-Hodgkin’s lymphoma (NHL), accounting for about 30 percent of newly diagnosed cases of NHL in the United States.

The American Cancer Society’s most recent estimates for NHL for 2018 project approximately 74,680 people (41,730 males and 32,950 females) will be diagnosed with NHL including both adults and children. They estimate that approximately 19,910 people will die from this cancer (11,510 males and 8,400 females).

DLBCL occurs in both men and women, although it is slightly more common in men. Although DLBCL can occur in childhood, its incidence generally increases with age, and roughly half of patients are over the age of 60.

DLBCL is an aggressive (fast-growing) lymphoma that can arise in lymph nodes or outside of the lymphatic system, in the gastrointestinal tract, testes, thyroid, skin, breast, bone, or brain. Often, the first sign of DLBCL is a painless, rapid swelling in the neck, underarms, or groin that is caused by enlarged lymph nodes. For some patients, the swelling may be painful. Other symptoms may include night sweats, fever, and unexplained weight loss. Patients may notice fatigue, loss of appetite, shortness of breath, or pain.

About Phospholipid Drug Conjugates (PDCs)

Cellectar’s product candidates are built upon a patented delivery and retention platform that utilizes optimized PDCs to target cancer cells. The PDC platform selectively delivers diverse oncologic payloads to cancerous cells and cancer stem cells, including hematologic cancers and solid tumors. This selective delivery allows the payloads’ therapeutic window to be modified, which may maintain or enhance drug potency while reducing the number and severity of adverse events. This platform takes advantage of a metabolic pathway utilized by all tumor cell types in all cell cycle stages. Compared with other targeted delivery platforms, the PDC platform’s mechanism of entry does not rely upon specific cell surface epitopes or antigens. In addition, PDCs can be conjugated to molecules in numerous ways, thereby increasing the types of molecules selectively delivered. Cellectar believes the PDC platform holds potential for the discovery and development of the next generation of cancer-targeting agents.

About CLR 131

CLR 131 is Cellectar’s investigational radioiodinated PDC therapy that exploits the tumor-targeting properties of the company’s proprietary phospholipid ether (PLE) and PLE analogs to selectively deliver radiation to malignant tumor cells, thus minimizing radiation exposure to normal tissues. CLR 131, is in a Phase 2 clinical study in relapsed or refractory (R/R) MM and a range of B-cell malignancies and a Phase 1 clinical study in patients with (R/R) MM exploring fractionated dosing. In 2018 the company plans to initiate a Phase 1 study with CLR 131 in pediatric solid tumors and lymphoma, and a second Phase 1 study in combination with external beam radiation for head and neck cancer.