On August 21, 2018 Rexahn Pharmaceuticals, Inc. (NYSE American: RNN), a clinical stage biopharmaceutical company developing innovative, targeted therapeutics for the treatment of cancer, reported that it has entered into a clinical trial collaboration agreement with Merck (known as MSD outside the United States and Canada) to evaluate the combination of Rexahn’s RX-5902 and Merck’s anti-PD-1 therapy, KEYTRUDA (pembrolizumab) in a Phase 2 trial in patients with metastatic triple negative breast cancer (TNBC) (Press release, Rexahn, AUG 21, 2018, View Source [SID1234529020]).

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"Rexahn is excited to announce this collaboration with Merck, an established leader in the field of immuno-oncology," said Peter D. Suzdak, Ph.D., chief executive officer of Rexahn. "RX-5902 has both antitumor and immune-modulatory effects and augments the efficacy of checkpoint inhibitors in animal models. Based on the mechanism of action of RX-5902 and our observations in preclinical studies, we are optimistic that the combination of RX-5902 with KEYTRUDA may provide meaningful clinical benefit in patients with metastatic triple negative breast cancer – a cancer that is notoriously difficult to treat".

The study will evaluate the safety and efficacy of the combination of RX-5902 and KEYTRUDA in patients with metastatic TNBC who have progressed following at least one prior treatment. Under the terms of the agreement, Rexahn will sponsor the RX-5902 and KEYTRUDA study.

KEYTRUDA is a registered trademark of Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA.

About RX-5902

RX-5902 (Supinoxin) is an orally administered, potential first-in-class, small molecule inhibitor of phosphorylated-p68 (P-p68). P-p68, which is selectively overexpressed in cancer cells and is absent in normal tissue, modulates the activity of the β-catenin/Wnt pathway and plays a role in tumor progression, metastasis and tumor immunogenicity.

In preclinical studies, RX-5902 has been shown to inhibit the growth and proliferation of multiple human cancer cell lines (including triple negative breast cancer), decrease tumor growth in patient derived xenograft models and potentiate the activity of immune checkpoint inhibitors and other anti-tumor agents. RX-5902 is currently being evaluated as monotherapy in a Phase 2 clinical trial in patients with metastatic TNBC. Preliminary data was presented at ASCO (Free ASCO Whitepaper) (American Society for Clinical Oncology) Annual Meeting in June 2018. Additional information on RX-5902 can be found at: View Source

On August 21, 2018 Kyowa Hakko Kirin Co., Ltd. (Tokyo: 4151 President and COO: Masashi Miyamoto; "Kyowa Hakko Kirin") reported that it has obtained the partial change approval for POTELIGEO* (code name: KW-0761; generic name: mogamulizumab) from the Ministry of Health, Labor and Welfare in Japan (Press release, Kyowa Hakko Kirin, AUG 21, 2018, View Source [SID1234529005]). The approved partial change includes removing the requirement for pre-treatment diagnostic testing, and changing the dosage and administration in patients with relapsed or refractory cutaneous T-cell lymphoma (CTCL)*

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The approval is based on data from the MAVORIC (Mogamulizumab anti-CCR4 Antibody Versus ComparatOR In CTCL) study, the largest global randomized clinical trial of systemic therapy in CTCL. In the MAVORIC study, identification of CCR4 positive cells in patients before enrollment into the study was not required and the enrolled patients were treated with mogamulizumab 1.0 mg/kg intravenously on a weekly basis for the first 28-day cycle, then on days 1 and 15 of subsequent cycles. With the partial change approval, the requirement for diagnostic testing for CCR4 expression will be unnecessary and the dosage schedule will be changed for CTCL in Japan.

"With this approval, I believe POTELIGEO is more helpful for patients with relapsed or refractory cutaneous T-cell lymphoma and healthcare professionals in Japan," said Mitsuo Satoh Ph.D., Executive Officer, Vice President Head of R&D Division of Kyowa Hakko Kirin, "Kyowa Hakko Kirin is dedicated to using advanced science and research methodologies to contribute to patients with unmet medical needs."

On August 8, POTELIGEO was approved for the treatment of adult patients with relapsed or refractory mycosis fungoides (MF) or Sézary syndrome (SS) after at least one prior systemic therapy by the U.S. Food and Drug Administration (FDA). The marketing authorization application for mogamulizumab is currently under review by the European Medicines Agency (EMA) in Europe. The Kyowa Hakko Kirin Group companies strive to contribute to the health and well-being of people around the world by creating new value through the pursuit of advances in life sciences and technologies.

About CTCL (Cutaneous T-cell Lymphoma)
CTCL is a rare type of non-Hodgkin’s T-cell lymphoma. The two most common types of CTCL are mycosis fungoides (MF) and Sézary syndrome (SS), and depending on the stage, the disease may involve skin, blood, lymph nodes, and viscera. In advanced stage CTCL is associated with significant morbidity and mortality.

About POTELIGEO (KW-0761)
News Release
POTELIGEO is a humanized monoclonal antibody (mAb) directed against CC chemokine receptor 4 (CCR4), which is frequently expressed on leukemic cells of certain hematologic malignancies including CTCL (cutaneous T-cell lymphoma). POTELIGEO was produced using Kyowa Hakko Kirin’s proprietary POTELLIGENT platform, which is associated with enhanced antibody-dependent cellular cytotoxicity (ADCC). It was approved first in japan for treatment of relapsed or refractory CCR4 positive adult T cell lymphoma (ATL) in March 2012 (brand name: POTELIGEO). In addition, mogamulizumab received approvals in Japan for an additional indication for relapsed or refractory CCR4-positive peripheral T-cell lymphoma (PTCL) and cutaneous T-cell lymphoma (CTCL) in March 2014 and for chemotherapy-naïve CCR4-positive adult T-cell leukemia-lymphoma (ATL) in December 2014.

About MAVORIC
MAVORIC is a Phase 3 open-label, multi-centre, randomized study of mogamulizumab versus Vorinostat, active comparator in patients with CTCL who have failed at least one prior systemic treatment. The study was the largest comparative trial in patients with CTCL conducted in the US, Europe, Japan and Australia, and randomized 372 patients.

On August 21, 2018 Y-mAbs Therapeutics, Inc. (YmAbs), an immunotherapy company discovering and developing innovative treatments for patients with cancer, reported that the Company has received a Breakthrough Therapy designation for naxitamab, in combination with GM-CSF, for the treatment of high risk neuroblastoma refractory to initial therapy or with incomplete response to salvage therapy in patients older than 12 months of age with persistent, refractory disease limited to bone marrow with or without evidence of concurrent bone involvement (Press release, Y-mAbs Therapeutics, AUG 21, 2018, View Source [SID1234529164]).

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YmAbs Founder, President and Head of Business Development and Strategy, Thomas Gad said, "We are very pleased that the FDA has granted the Breakthrough Therapy designation to naxitamab and we look forward to continuing to work with the FDA to make this therapy potentially available to children facing an unmet medical need. We believe that Naxitamab provides a new opportunity for pediatric patients otherwise faced with little or no options. This is an important milestone achievement for YmAbs, and we continue to work with the regulatory authorities to advance naxitamab to patients suffering from high risk neuroblastoma as quickly as possible."

Dr. Claus Møller, Chief Executive Officer further notes, "This is the first time naxitamab has earned the distinction of a Breakthrough Therapy Designation. We are pleased that the FDA continues to recognize the potential of naxitamab to help patients with high risk neuroblastoma."

About Breakthrough Therapy Designation:

The Breakthrough Therapy Designation was enacted as part of the 2012 FDA Safety and Innovation Act (FDASIA) and is intended to expedite development of drugs to treat serious and life-threatening medical conditions when preliminary clinical evidence demonstrates that the drug may have substantial improvement on at least one clinically significant endpoint over available therapies. Breakthrough Therapy Designation includes all the features of the Fast Track Designation, as well as more intensive guidance from the FDA on a drug’s clinical development program.

On August 21, 2018 AstraZeneca reported that the Japanese Ministry of Health, Labour and Welfare (MHLW) has approved Tagrisso (osimertinib) for the 1st-line treatment of patients with inoperable or recurrent epidermal growth factor receptor (EGFR) mutation-positive non-small cell lung cancer (NSCLC), following priority review (Press release, AstraZeneca, AUG 21, 2018, View Source [SID1234529010]). The approval is based on results from the global Phase III FLAURA trial which included Japanese patients and which were published in the New England Journal of Medicine.

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Dave Fredrickson, Executive Vice President, Head of the Oncology Business Unit, said: "Tagrisso is already approved in Japan for the treatment of patients with EGFR T790M mutation-positive inoperable or recurrent NSCLC that is resistant to existing 1st-line EGFR-inhibitor medicines. Today’s approval moves the use of Tagrisso to the 1st-line setting, replacing older medicines which, given the high prevalence of the EGFR mutation in Japan, offers an important new treatment option for these patients."

The FLAURA trial compared Tagrisso to current 1st-line EGFR tyrosine kinase inhibitors (TKIs), erlotinib or gefitinib in previously-untreated patients with locally-advanced or metastatic EGFR-mutated (EGFRm) NSCLC. In the trial, Tagrisso demonstrated superior progression-free survival (PFS) of 18.9 months compared with 10.2 months for the comparator arm (see table below), and this benefit was consistent across all subgroups including in patients with or without central nervous system (CNS) metastases, an important benefit for lung cancer patients.

FLAURA trial efficacy results according to investigator assessment

Safety data for Tagrisso in the FLAURA trial were in line with those observed in prior clinical trials. Tagrisso was generally well tolerated, with Grade 3 or higher adverse events (AEs) occurring in 34% of patients taking Tagrisso and 45% in the comparator arm. The most common adverse reactions in patients treated with Tagrisso were rash/acne (54.5%), diarrhoea (49.5%), dry skin/eczema (33.3%) and nail disorder including paronychia (32.6%) (at the time of supplementary approval).

Tagrisso has now received approval in 40 countries for the 1st-line treatment of patients with metastatic EGFRm NSCLC, including the US, Japan and in Europe. Other global health authority reviews and submissions are ongoing.

About EGFRm NSCLC

Lung cancer is the leading cause of cancer death among both men and women, accounting for about one-fifth of all cancer deaths, more than breast, prostate and colorectal cancers combined. Lung cancer is broadly split into NSCLC and small cell lung cancer (SCLC), with 80-85% classified as NSCLC. Approximately 10-15% of NSCLC patients in the US and Europe, and 30-40% of patients in Asia have EGFRm NSCLC. These patients are particularly sensitive to treatment with EGFR-TKIs which block the cell-signalling pathways that drive the growth of tumour cells. Approximately 25% of patients with EGFRm NSCLC have brain metastases at diagnosis, increasing to approximately 40% within two years of diagnosis. The presence of brain metastases often reduces median survival to less than 8 months.

About Tagrisso

Tagrisso (osimertinib) is a third-generation, irreversible EGFR-TKI designed to inhibit both EGFR-sensitising and EGFR T790M-resistance mutations, with clinical activity against CNS metastases. Tagrisso 40mg and 80mg once-daily oral tablets have now received approval in 40 countries, including the US, Japan and in Europe, for 1st-line EGFRm advanced NSCLC, and more than 75 countries, including the US, Japan, China and in Europe, for 2nd-line use in patients with EGFR T790M mutation-positive advanced NSCLC. Tagrisso is also being developed in the adjuvant setting (ADAURA), in the locally-advanced unresectable setting (LAURA), and in combination with other treatments.

About the FLAURA trial

The FLAURA trial assessed the efficacy and safety of Tagrisso 80mg orally once daily vs. standard-of-care EGFR-TKIs (either erlotinib [150mg orally, once daily] or gefitinib [250mg orally, once daily]) in previously-untreated patients with locally-advanced or metastatic EGFRm NSCLC. The trial was double-blinded and randomised, with 556 patients across 29 countries.

On August 21, 2018 Onconova Therapeutics, Inc. (NASDAQ:ONTX), a Phase 3-stage biopharmaceutical company focused on discovering and developing novel products to treat cancer, with a primary focus on myelodysplastic syndromes (MDS), reported that its commercial partner, Pint Pharma GmbH, will assist in expanding access to clinical trials studying rigosertib, a novel and targeted anti-cancer compound currently in a Phase 3 study for the treatment of MDS, to several selected sites across South America (Press release, Onconova, AUG 21, 2018, View Source [SID1234529071]). Pint Pharma is a European-based pharmaceutical company focused on the development, registration and commercialization of specialty-based treatments for the Latin American market and has successfully participated in clinical trials for hematological cancers.

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"This assistance will help make rigosertib available to cancer patients on a fifth continent, following our ongoing clinical trials in North America, Europe, Asia and Australia. We are delighted to partner with Pint Pharma, which has a wide footprint in South and Central America, with first-hand experience in running clinical trials for malignant hematological disorders," said Dr. Ramesh Kumar, CEO of Onconova Therapeutics, Inc.

"We are excited to start helping Onconova open new clinical sites in Latin America. We are hopeful that Onconova will be able to start recruiting patients as soon as possible to continue the development of IV and Oral Rigosertib," said David Munoz, Chief Executive Officer of Pint Pharma. He added, "Rigosertib is highly complementary to our comprehensive hematology oncology portfolio, and will further strengthen our mission to enable the Latin American population with life-threatening conditions to live better lives by providing early and efficient access to innovative technologies."

Dr. Steven Fruchtman, President and Chief Medical Officer of Onconova, is working closely with Dr. Valnei Canutti, General Manager, Brazil, and Chief Medical Officer of Pint. Dr. Fruchtman commented, "Completion of the INSPIRE Trial and expanding the potential utility of rigosertib for cancer patients are our core objectives and we are delighted that our commercial partner will assist us in recruiting patients in the INSPIRE trial. There is a great medical need and interest to conduct studies in patients with higher risk MDS in this geographical region."

Dr. Canutti added, "We are looking forward to working with Dr. Fruchtman on this important initiative. My prior experience in MDS and our connections with Key Opinion Leaders across this continent will be greatly helpful as we collaborate with Onconova."