On October 10, 2018 Chugai Pharmaceutical Co., Ltd. (TOKYO: 4519) reported that it obtained a supplemental approval from the Japanese Ministry of Health, Labour and Welfare (MHLW) on October 10, 2018, for the anti-cancer agent, pertuzumab (brand name: PERJETA I.V. Infusion 420 mg/14 mL) for the indication of "neoadjuvant and adjuvant therapy for HER2-positive early breast cancer (Press release, Chugai, OCT 10, 2018, View Source [SID1234529941])." In Japan, PERJETA is currently on the market and its approved indication is in "HER2-positive inoperable or recurrent breast cancer." With this supplemental approval, the indication of PERJETA has been broadened to "HER2-positive breast cancer."

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"The ultimate goal for early breast cancer treatment is to cure. Although treatment outcomes have improved over the years, unfortunately, some patients still have recurrence of cancer. By offering a new treatment option for HER2-positive early breast cancer with this approval, we hope that PERJETA can make an even greater contribution to the advancement of breast cancer treatments," said Dr. Yasushi Ito, Chugai’s Executive Vice President, Co-Head of Project & Lifecycle Management Unit. "Chugai will continue to focus on collecting and providing information for the proper use of PERJETA against the treatment of HER2-positive breast cancer."

This approval is based on the results from the APHINITY study (Adjuvant Pertuzumab and Herceptin IN Initial TherapY in Breast Cancer), a global phase III study, and several clinical studies. The APHINITY study is a global phase III study evaluating the efficacy and safety of PERJETA plus Herceptin and chemotherapy (anthracycline medicine followed by docetaxel or paclitaxel / docetaxel plus carboplatin) compared to Herceptin and chemotherapy as adjuvant (post-surgery) therapy in 4,805 patients (including 302 patients in Japan) with HER2-positive early breast cancer who have undergone curative surgery. The primary endpoint of the APHINITY study is invasive disease-free survival (IDFS), which is the time a patient lives without return of invasive breast cancer at any site or death from any cause after adjuvant therapy. PERJETA arm significantly reduced the risk of recurrence or death by 19% compared to control arm (HR=0.81, 95%CI 0.66-1.00, stratified log-rank test, p=0.0446). The safety profile of PERJETA was consistent with that seen in previous studies.

PERJETA was approved for neoadjuvant therapy for HER2-positive early breast cancer in September 2013 in the US and in July 2015 in Europe. In addition, PERJETA was approved for adjuvant therapy for HER2-positive early breast cancer in December 2017 in the US and in May 2018 in Europe.

As the leading pharmaceutical company in the field of oncology in Japan, Chugai believes that PERJETA will make a significant contribution to patients’ lives as a new treatment option for "HER2-positive early breast cancer."

Drug Information

The underlined descriptions are newly added and changed.

Product name: PERJETA I.V. Infusion 420 mg/14 mL

Generic name: pertuzumab (genetical recombination)

Indication: HER2-positive breast cancer

Dosage and administration: The usual adult dosage when used in combination with trastuzumab (genetical recombination) and other anticancer drugs is a loading dose of 840 mg of pertuzumab (genetical recombination) followed by 420 mg every three weeks given by intravenous infusion over 60 minutes. For neoadjuvant or adjuvant chemotherapy, however, treatment should be given for up to 12 months. The infusion time can be shortened to as little as 30 minutes from the second infusion onward if the first infusion is well tolerated.

On October 10, 2018 Merck (NYSE: MRK), known as MSD outside the United States and Canada, reported that it will hold its third-quarter 2018 sales and earnings conference call with institutional investors and analysts at 8:00 a.m. EDT on Thursday, Oct. 25 (Press release, Merck & Co, OCT 10, 2018, View Source [SID1234529843]). During the call, company executives will provide an overview of Merck’s performance for the quarter.

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Investors, journalists and the general public may access a live audio webcast of the call on Merck’s website at View Source A replay of the webcast, along with the sales and earnings news release and supplemental financial disclosures, will be available at www.merck.com.

Institutional investors and analysts can participate in the call by dialing (706) 758-9927 or (877) 381-5782 and using ID code number 2169459. Members of the media are invited to monitor the call by dialing (706) 758-9928 or (800) 399-7917 and using ID code number 2169459. Journalists who wish to ask questions are requested to contact a member of Merck’s Media Relations team at the conclusion of the call.

On October 10, 2018 DelMar Pharmaceuticals, Inc. (NASDAQ: DMPI) ("DelMar" or the "Company"), a biopharmaceutical company focused on the development and commercialization of new cancer therapies, reported the publication of a peer-reviewed scientific paper on the mechanism of action for VAL-083, the Company’s product candidate, in Cell Death and Disease by Nature Publishing Group (Press release, DelMar Pharmaceuticals, OCT 10, 2018, View Source [SID1234530251]).

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The paper, entitled "Dianhydrogalactitol induces replication-dependent DNA damage in tumor cells preferentially resolved by homologous recombination," details the mechanism of action for VAL-083 (dianhydrogalactitol) involving S-phase dependent DNA double stand breaks (DSB) and homologous recombination (HR) DNA repair. This peer-reviewed publication further validates VAL-083’s unique anti-tumor mechanism and differentiates it from the standard-of-care. In addition, this research supports the use of VAL-083 in combination with drugs targeting cancer cells in S-phase, including topoisomerase inhibitors. Furthermore, the results suggest VAL-083 as a potential treatment option for tumors with impaired HR DNA repair, such as high-grade ovarian carcinomas, or tumors treated with PARP inhibitors.

The research was conducted in the laboratory of Dr. Mads Daugaard at the Vancouver Prostate Center, one of the world’s most respected cancer research institutes. Using non-small cell lung cancer (NSCLC) as a model system for cancer cells, the research group showed that VAL-083-induced cytotoxicity materialized when the cells entered the S-phase of the cell cycle. The resulting DNA damage subsequently triggered irreversible cell cycle arrest and ultimately cancer cell death. Further analysis revealed that cancer cells attempted to use their HR DNA repair pathway to reverse VAL-083-induced DNA damage and cancer cells with an impaired HR repair pathway were therefore particularly sensitive to VAL-083.

DelMar is currently studying VAL-083 in two collaborator-supported, biomarker driven, Phase 2 clinical trials for MGMT-unmethylated glioblastoma multiforme (GBM). As demonstrated in prior publications, the DNA repair protein MGMT is overexpressed in over 60% of GBM patients which causes resistance to the standard-of-care (temozolomide). In contrast to temozolomide, which targets the O6-position of guanine vulnerable to MGMT repair, VAL-083 targets the N7-position of guanine. This distinct mechanism-of-action differentiates VAL-083 from temozolomide and nitrosoureas, allowing VAL-083 to overcome MGMT-related chemoresistance, thereby addressing a significant unmet medical need.

About VAL-083

VAL-083 (dianhydrogalactitol) is a "first-in-class," bifunctional DNA-targeting agent that introduces interstrand DNA cross-links at the N7-position of guanine leading to DNA double-strand breaks and cancer cell death. VAL-083 has demonstrated clinical activity against a range of cancers including GBM and ovarian cancer in historical clinical trials sponsored by the U.S. National Cancer Institute (NCI). DelMar has demonstrated that VAL-083’s anti-tumor activity is unaffected by common mechanisms of chemoresistance, including MGMT, in cancer cell models and animal studies. Further details regarding these studies can be found at:

View Source

VAL-083 has been granted orphan drug designations by the U.S. FDA Office of Orphan Products for the treatment of glioma, medulloblastoma and ovarian cancer, and in Europe for the treatment of malignant gliomas. VAL-083 has been granted fast-track status for the treatment of recurrent GBM by the US FDA.

On October 10, 2018 Helix BioPharma Corp. (TSX: HBP), (FSE: HBP) ("Helix" or the "Company"), an immuno-oncology company developing innovative drug candidates for the prevention and treatment of cancer, reported that it has extended its collaboration agreement with Moffitt Cancer Center for an additional year (Press release, Helix BioPharma, OCT 10, 2018, View Source [SID1234530409]).

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During the first year of the collaboration, a new pancreatic adenocarcinoma mouse model suitable for testing L-DOS47 in combination with immunotherapy was developed. Preliminary studies in this model showed that L-DOS47 may increase the activity of a PD-1/PD-L1 inhibitor in treating pancreatic cancer. In addition, work was initiated to demonstrate that certain imaging techniques may be useful in directly measuring tumor acidity. Helix is hoping to use this non-invasive technique in the clinic soon.

In year two of the project, work will include not only the study of L-DOS47 in combination with PD-1/PDL1 inhibitors, but also in combination with other drugs in the pancreatic model. Analysis of the immune response that is occurring in the tumor upon L-DOS47 combination treatment will also be characterised. Results from these studies will add to the current understanding of how tumor acidity affects the tumor immune response. Data from these studies will also support Helix’s plan to increase the clinical application of L-DOS47 with various combination treatments, including immunotherapies with checkpoint inhibitors.

"We are strongly encouraged by our preliminary data that this may be an effective approach to improving outcomes to a variety of therapies" said Dr. Robert Gillies, Martin Silbiger Endowed Chair, Moffitt Cancer Center. "We know that tumor acidity is an important contributor to therapy resistance, and thus neutralizing acidity with L-DOS47 should have a positive effect in combination with chemotherapies and immune checkpoint blockade".

"This years’ Nobel prize in Physiology or Medicine was awarded for the discovery of cancer therapy by inhibition of negative immune regulation." said Heman Chao, Ph.D., Chief Executive & Scientific Officer of Helix. "We are very excited to work with the Moffitt team in applying L-DOS47 in immunotherapy and we look forward to using L-DOS47 with PD-1/PD-L1 inhibitors in the clinic which could result in significant benefits to patients."

On October 10, 2018 Epizyme, Inc. (Nasdaq: EPZM), a clinical-stage company developing novel epigenetic therapies, reported that updated efficacy and safety data from the fully enrolled cohort of epithelioid sarcoma (ES) patients in its ongoing Phase 2 trial of tazemetostat will be presented in a poster discussion session at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) 2018 Congress to be held October 19-23 in Munich, Germany (Press release, Epizyme, OCT 10, 2018, View Source [SID1234529845]). Tazemetostat is the company’s potent, selective, orally available, first-in-class EZH2 inhibitor.

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The Phase 2 study ES cohort completed enrollment in 2017 with a total of 62 patients. Detailed data will be presented at the Congress, including objective response rate (ORR), the study’s primary endpoint, and other important endpoints in this disease including duration of response, overall survival (OS), disease control rate and safety. For the first time, an analysis of ORR, durability and OS will be presented in both treatment-naive patients and in relapsed and/or refractory patients from the fully enrolled study cohort. Data will be presented by the study’s primary investigator, Mrinal Gounder, M.D., attending physician, Sarcoma Medical Oncology and Early Drug Development Service, and assistant professor, Memorial Sloan Kettering Cancer Center.

"We are excited to share these updated efficacy and safety data on tazemetostat in patients with epithelioid sarcoma, a rare and deadly cancer," said Robert Bazemore, president and chief executive officer of Epizyme. "We remain committed to bringing this potential therapy to patients living with ES, and are confident as we progress towards our first NDA submission in the first half of 2019."

In addition to the ES data, Epizyme will present data from the company’s Phase 2 study of tazemetostat in adult patients with INI1-negative tumors in two additional poster discussions and during one oral session at ESMO (Free ESMO Whitepaper). A complete list of the tazemetostat presentations at ESMO (Free ESMO Whitepaper) are listed below:

Epithelioid Sarcoma Poster Discussion Session
Title: A phase 2, multicenter study of the EZH2 inhibitor tazemetostat in adults: (epithelioid sarcoma cohort)
Abstract No.: 1615PD
Date: Monday, October 22, 2018; 11:50 a.m. CEST
Location: Hall B3 – Room 23
Presenter: Mrinal Gounder, M.D.

Proffered Paper (Oral Presentation) Session
Title: Molecular characterization of epithelioid sarcoma (ES) tumors derived from patients enrolled in a phase 2 study of tazemetostat
Abstract No.: 1892O
Date: Saturday, October 20, 2018; 11:12 a.m. – 11:24 a.m. CEST
Location: Hall B3 – Room 21
Presenter: Mrinal Gounder, M.D.

Poster Discussion Sessions
Title: A phase 2, multicenter study of the EZH2 inhibitor tazemetostat in adults (INI1-negative tumors cohort)
Abstract No.: 1611PD
Date: Monday, October 22, 2018; 11:50 a.m. CEST
Location: Hall B3 – Room 23
Presenter: Silvia Stacchiotti, M.D.

Title: A phase 2, multicenter study of the EZH2 inhibitor tazemetostat in adults (rhabdoid tumor cohort)
Abstract No.: 1612PD
Date: Monday, October 22, 2018; 11:50 a.m. CEST
Location: Hall B3 – Room 23
Presenter: Robin L. Jones, MRCP, M.D.

Conference Call Information
Epizyme Management will host a conference call on Monday, October 22, 2018 at 8:30am EDT. To participate in the conference call, please dial 877-844-6886 (domestic) or 970-315-0315 (international) and refer to conference ID 8780088. The webcast can be accessed in the Investor Relations section of the company’s website at www.epizyme.com. The replay of the webcast will be available in the investor section of the company’s website for 60 days.

About the Tazemetostat Clinical Trial Program
Tazemetostat, a potent, selective, orally available, first-in-class EZH2 inhibitor, is currently being studied as a monotherapy in ongoing Phase 2 programs in certain molecularly defined solid tumors, including epithelioid sarcoma and other INI1-negative tumors; follicular lymphoma (FL); and combination studies in diffuse large B-cell lymphoma (DLBCL) and non–small cell lung cancer (NSCLC).