On September 26, 2018 NANOBIOTIX (Euronext: NANO – ISIN: FR0011341205), a late clinical-stage nanomedicine company pioneering new approaches to the treatment of cancer, reported it will present an update on and data from its NBTXR3 development program at the International Conference on Immunotherapy Radiotherapy Combinations that will take place from September 20 to 22, 2018 in Paris, France (Press release, Nanobiotix, SEP 20, 2018, View Source [SID1234529669]).

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Follow-up of Phase I/II in advanced Head and Neck cancers in elderly and frail patients ineligible for cisplatin or
intolerant to cetuximab In the Phase I part of this trial, which is conducted to determinate the recommended dose, 18 patients have been injected with NBTXR3. Follow-up of patients that received highest doses of NBTXR3 (15% and 22% dose levels) shows that every patient alive at the 12-month cut-off date was still alive after 23 months or more. At 26 months, one of the patients treated at the 15% dose level had died.

These data suggest the potential of NBTXR3 to impact survival for this advanced cancer patient population.
Immuno biomarker study in randomized phase II/III soft tissue sarcoma clinical trial Immunohistochemistry analyses revealed that, compared to radiation therapy alone (29 patients), NBTXR3 activated by radiation therapy (23 patients) increased the density of CD8+ T cell lymphocyte, and decreased FOXP3+ (Treg) into the tumors, while macrophage number remained relatively constant. These data indicate that NBTXR3 activated by radiation therapy could modulate the antitumor immune response.

In vivo investigation of NBTXR3 mode of action inducing distant immune response on CT26 tumoral model
Depletion experiment of CD8+ T cells (NBTXR3+3x4Gy+anti-CD8) induces a partial loss of tumor growth control of
treated tumors, and a complete abolition of the abscopal effect (distal tumors). This result indicates that the abscopal effect was driven by CD8+ T cells. Interestingly, depletion of CD4+ T cells (NBTXR3+3x4Gy+anti-CD4) increases the efficacy of NBTXR3 + radiation therapy at both sites (treated and distal tumors). As anti-CD4 treatment lead to Treg depletion (known to have a protumoral role), Treg depletion might have improved NBTXR3 radiation therapy treatment. These observations continue to support the rationale for the use of NBTXR3 activated by radiation therapy to seek to transform tumors

On September 20, 2018 Supernus Pharmaceuticals, Inc. (NASDAQ: SUPN), a specialty pharmaceutical company focused on developing and commercializing products for the treatment of central nervous system diseases, reported that the Company’s management will present an overview and Company update as well as host investor meetings, at the 2018 Cantor Fitzgerald Global Healthcare Conference (Press release, Supernus, SEP 20, 2018, View Source [SID1234529925]).

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Date: Wednesday, October 3, 2018

Time: 8:35 a.m. ET
Place: InterContinental New York Barclays Hotel, New York City

Investors interested in arranging a meeting with the Company’s management during this conference should contact the conference coordinator.

A live webcast of the presentation can be accessed by visiting ‘Events & Presentations’ in the Investors Section on the Company’s website at www.supernus.com. An archived replay of the webcast will be available for 60 days on the Company’s website after the conference.

On September 20, 2018 Puma Biotechnology, Inc. (NASDAQ: PBYI), a biopharmaceutical company, reported that Alan H. Auerbach, Chairman, Chief Executive Officer, President and Founder of Puma, will provide an overview of the Company at 1:10 p.m. EDT on Monday, October 1, at the Cantor Global Healthcare Conference (Press release, Puma Biotechnology, SEP 20, 2018, View Source [SID1234529505]). The conference will be held at the InterContinental New York Barclay Hotel.

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A live webcast of the presentation will be available on the Company’s website at www.pumabiotechnology.com. The presentation will be archived on the website and available for 30 days.

On September 20, 2018 Sesen Bio, Inc. (Nasdaq: SESN), a late-stage clinical company developing fusion protein therapies for the treatment of cancer, reported that the company will present its three-month Phase 3 VISTA Trial data during a poster session at the Global Congress on Bladder Cancer 2018 (Press release, Sesen Bio, SEP 20, 2018, View Source [SID1234529506]). The congress is being held Sept. 20-21, 2018 in Madrid. The ongoing VISTA registration trial is evaluating Vicinium, Sesen Bio’s lead product candidate, for the treatment of people with high-grade non-muscle invasive bladder cancer (NMIBC) who have been previously treated with bacillus Calmette-Guérin (BCG).

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The data, which were presented during a plenary session at the American Urological Association Annual Meeting in May 2018, include a biomarker update showing that nearly all screened patient samples expressed EpCAM, the molecular target of Vicinium.

"We are delighted to present the three-month VISTA Trial data at the Global Congress on Bladder Cancer and further showcase the promise of Vicinium in treating people with NMIBC," said Dr. Thomas Cannell, president and chief executive officer of Sesen Bio. "Today, patients who are unresponsive or become refractory to BCG therapy have virtually one option: complete removal of their bladder. This is a long, challenging and life-altering procedure with a high rate of mortality that nearly half of people who face it choose not to undergo. It is critically important that such people are provided an effective and tolerable option that spares them from having to make such a difficult decision and saves their bladder. We believe that Vicinium holds significant potential as a targeted treatment that could renew the lives of these underserved patients."

As announced in May, the three-month data are from 111 patients in the VISTA Trial with high-grade NMIBC that is either carcinoma in situ (CIS), which is cancer found on the inner lining of the bladder that has not spread into muscle or other tissue, with or without papillary disease, or from patients with papillary disease without CIS, which is cancer that has grown from the bladder lining out into the bladder, but has not spread into muscle or other tissue. In an analysis assessing pooled CIS patients (n=77), based on final U.S. Food and Drug Administration guidance on treatment of BCG-unresponsive CIS NMIBC patients (defined as patients with recurrent CIS within 12 months of adequate BCG therapy)1, Vicinium treatment resulted in a complete response rate of 42 percent at three months. In patients with papillary disease without CIS, treatment with Vicinium demonstrated a 68 percent recurrence-free rate at three months.

In addition, Vicinium has been well-tolerated in the VISTA Trial. Of the treatment-related adverse events in the three-month analysis, four percent were Grade 3 or 4, with no Grade 5 treatment-related adverse events. Four treatment-related serious adverse events were reported, including acute kidney injury or renal failure and cholestatic hepatitis.

About Vicinium
Vicinium (also known as VB4-845), Sesen Bio’s lead product candidate, is a fusion protein being developed for the treatment of high-grade non-muscle invasive bladder cancer (NMIBC). Vicinium is comprised of a recombinant fusion protein that targets epithelial cell adhesion molecule (EpCAM) antigens on the surface of tumor cells to deliver a potent protein payload, Pseudomonas Exotoxin A (ETA). Vicinium is constructed with a stable, genetically engineered peptide linker to ensure the payload remains attached until it is internalized by the cancer cell, which is believed to decrease the risk of toxicity to healthy tissues, thereby improving its safety. In clinical trials conducted by Sesen Bio, EpCAM has been shown to be overexpressed in NMIBC cells with minimal to no EpCAM expression observed on normal bladder cells. Sesen Bio is currently conducting the Phase 3 VISTA Trial, designed to support the registration of Vicinium for the treatment of high-grade NMIBC in patients who have previously received two courses of bacillus Calmette-Guérin (BCG) and whose disease is now BCG-unresponsive. Twelve-month data from the trial are anticipated in mid-2019. Additionally, Sesen Bio believes that Vicinium’s cancer cell-killing properties promote an anti-tumor immune response that may potentially combine well with immuno-oncology drugs, such as checkpoint inhibitors. The activity of Vicinium in BCG-unresponsive NMIBC is also being explored at the US National Cancer Institute in combination with AstraZeneca’s immune checkpoint inhibitor durvalumab.

On September 20, 2018 BeiGene, Ltd. (NASDAQ: BGNE; HKEX: 06160), a commercial-stage biopharmaceutical company focused on developing and commercializing innovative molecularly-targeted and immuno-oncology drugs for the treatment of cancer, reported its clinical data on tislelizumab, an investigational anti-PD-1 antibody, in Chinese patients with lung cancers, in two oral presentations at the 21st Annual Meeting of the Chinese Society of Clinical Oncology (CSCO) in Xiamen, China (Press release, BeiGene, SEP 20, 2018, View Source;p=RssLanding&cat=news&id=2368376 [SID1234529526]).

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"Advanced lung cancer is one of our focus areas for development of tislelizumab, where we hope to have an impact on the way patients are treated both in China and worldwide. This complex and difficult-to-treat disease has proven to be susceptible to treatment with immunotherapies," commented Amy Peterson, M.D., Chief Medical Officer, Immuno-Oncology, at BeiGene. "The preliminary data presented today demonstrate that tislelizumab is generally well tolerated and has antitumor activity both as monotherapy and in combination with several chemotherapy regimens used in small cell and non-small cell lung cancer patients. We are hopeful that further study of tislelizumab may lead to a new treatment option for a broad array of patients with lung cancers."

Summary of Preliminary Results of Phase 2 Trial in China of Tislelizumab Combined with Chemotherapy as First-Line Treatment in Advanced Lung Cancer Setting

The multi-center, open-label Phase 2 trial in China (CTR20170361) of tislelizumab in combination with chemotherapy enrolled 54 patients with previously untreated locally advanced or metastatic lung cancer. All patients received tislelizumab at 200 mg every three weeks, plus platinum doublet until disease progression. Patients with non-squamous non-small cell lung cancer (NSCLC) (n=16) received pemetrexed plus platinum; patients with squamous NSCLC received either paclitaxel plus platinum (cohort A, n=15) or gemcitabine plus platinum (cohort B, n=6); and patients with small cell lung cancer (SCLC) received etoposide plus platinum (n=17).

As of the June 5, 2018 data cutoff, 35 patients remain on treatment. Treatment discontinuation due to adverse events (AEs) occurred in three patients. Fifty-one patients had at least one post-baseline tumor assessment and were evaluable for efficacy. Objective responses (including confirmed and unconfirmed partial responses) were observed in 56 percent (31 percent confirmed; all patients with an unconfirmed partial response remained on treatment) of 16 evaluable patients with non-squamous NSCLC; 80 percent (all confirmed) in 15 evaluable patients with squamous NSCLC, cohort A; 67 percent (all confirmed) in six patients with squamous NSCLC, cohort B; and 82 percent (47 percent confirmed; all patients with an unconfirmed partial response remained on treatment) in 17 evaluable patients with SCLC. Data continue to mature with follow-up.

AEs were considered manageable and reversible, with chemotherapy dose modifications or tislelizumab dose holds, except for one fatal event of myocarditis/myositis. Five patients (9.3%) experienced at least one grade ≥3 AE (polymyositis, dyspnea, rhabdomyolysis, myocarditis/myositis, and myasthenia gravis) that were considered to be possibly related to tislelizumab. Immune-related AEs (irAEs) occurred in 13 patients (24%) and included hypothyroidism (n=3), decreased tri-iodothyronine (n=2), hyperthyroidism (n=2), pneumonitis (n=2), pyrexia (n=2), and rash (n=2).

"We are excited by the preliminary data of tislelizumab combined with chemotherapy in patients with advanced lung cancer. The safety and tolerability appear consistent with previous data, and high response rates of up to 80 percent in a squamous NSCLC cohort along with low discontinuation rates support continued investigation of tislelizumab in patients with advance lung cancer. We are hopeful that this combination therapy will offer improved outcomes in this advanced disease setting," said Professor Jie Wang, M.D., from the National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College in Beijing, China, and lead author of the presentation.

Summary of Preliminary Results of Tislelizumab in Chinese Patients with NSCLC from Phase 1/2 Trial

The multi-center, open-label Phase 1/2 trial in China (CTR20160872) of tislelizumab enrolled 46 patients with NSCLC in the Phase 2 indication expansion portion of the trial, with 21 patients having expression of PD-L1 in 10 percent or more of their tumor cells (PD-L1+); the remaining 25 patients were considered PD-L1 negative (PD-L1-).

As of the May 11, 2018 data cutoff, 15 patients (33%) remained on treatment with the median treatment duration of 4.1 months (0.2–11.3 months) and a median follow-up of 8.4 months (0.2–11.8 months). Treatment discontinuation due to adverse events (AEs) occurred only in one patient. The median duration of treatment was 3.5 months (0.2-11.2 months) and 4.4 months (0.7–11.3 months) in PD-L1+ and PD-L1- cohorts, respectively. A total of 42 patients had at least 1 post-baseline tumor assessment and were evaluable for antitumor activity. Confirmed partial responses were observed in 17 percent of the evaluable patients, including 12 percent and 20 percent in PD-L1+ and PD-L1- patients, respectively.

Across the two arms, the most common treatment-related AEs (TRAEs) (occurring in ≥ 10% of patients) were increased transaminases (26%), rash (11%) and hypothyroidism (11%). A total of 14 patients had serious AEs and three of these patients experienced serious TRAEs, including nausea and vomiting (n=1), increased aspartate aminotransferase (AST) (n=1) and hyperglycemia (n=1). Three patients experienced a serious AE with a fatal outcome (multiple organ dysfunction syndrome [n=1], central nervous system metastases [n=1], hypotension [n=1]); none were determined to be related to treatment. Immune-related AEs occurred in 26 patients (57%) and many were overlapping with the TRAE cases.

"The prognosis for patients with late stage non-small cell lung cancer remains particularly poor. We are pleased that this trial demonstrated that treatment with tislelizumab was generally well tolerated. We are excited to see that Phase 3 trials evaluating tislelizumab, either as monotherapy or in combination with chemotherapy, in patients with advanced NSCLC are underway and look forward to the results," said Yi-Long Wu, M.D., President of Chinese Thoracic Oncology Group (CTONG) and lead author of the presentation.

Trial data with the same cut off time will be presented at the International Association for the Study of Lung Cancer (IASLC) 19th World Conference on Lung Cancer (WCLC), which takes place September 23-26 in Toronto.

About Tislelizumab
Tislelizumab (BGB-A317) is an investigational humanized monoclonal antibody that belongs to a class of immuno-oncology agents known as immune checkpoint inhibitors. Discovered by BeiGene scientists in Beijing, tislelizumab is designed to bind to PD-1, a cell surface receptor that plays an important role in downregulating the immune system by preventing the activation of T-cells. Tislelizumab has demonstrated high affinity and specificity for PD-1. It is potentially differentiated from the currently approved PD-1 antibodies in an engineered Fc region, which is believed to minimize potentially negative interactions with other immune cells, based on preclinical data. Tislelizumab is being developed as a monotherapy and in combination with other therapies for the treatment of a broad array of both solid tumor and hematologic cancers. BeiGene and Celgene Corporation have a global strategic collaboration for the development of tislelizumab in solid tumor cancers outside of Asia (except Japan).