On September 15, 2021 DURECT Corporation (Nasdaq: DRRX) reported that Dr. James E. Brown, President and CEO, Michael H. Arenberg, Chief Financial Officer, Dr. Norman Sussman, Chief Medical Officer, and Dr. WeiQi Lin, Executive Vice President of R&D, will be participating in a fireside chat hosted by Francois Brisebois, Managing Director, Senior Biotechnology Research Analyst at Oppenheimer & Co. Inc (Press release, DURECT, SEP 15, 2021, https://investors.durect.com/news-releases/news-release-details/durect-corporation-fireside-chat-oppenheimers-fall-healthcare [SID1234587754]).

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Presentation details are as follows:

Oppenheimer’s Fall Healthcare Life Sciences & MedTech Summit

Date:

September 22, 2021

Time:

2:05 P.M. to 2:45 P.M. Eastern Standard Time

Format:

Fireside chat hosted by Francois Brisebois

Webcast:

View Source

The webcast link of the presentation will also be available by accessing DURECT’s homepage at www.durect.com and clicking on "Event Calendar" under the "Investors" section.

Management will also be available for virtual 1×1 meetings during the conference. If you would like to request a meeting, please contact Oppenheimer directly.

On September 15, 2021 Leap Therapeutics, Inc. (Nasdaq:LPTX), a biotechnology company focused on developing targeted and immuno-oncology therapeutics, reported the presentation of updated positive data from the first-line cohort of the DisTinGuish study, a Phase 2a clinical trial evaluating Leap’s anti-Dickkopf-1 (DKK1) antibody, DKN-01, in combination with tislelizumab, BeiGene Ltd.’s anti-PD-1 antibody, and chemotherapy, in patients with gastric or gastroesophageal junction cancer (G/GEJ), at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress (Press release, Leap Therapeutics, SEP 15, 2021, View Source [SID1234587771]). The Company will host a conference call on Friday, September 17, 2021 to discuss preliminary results from the study.

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The Company announced positive initial data from the DisTinGuish study on Monday, September 13, 2021 based on 25 G/GEJ patients enrolled in the trial that showed DKN-01 in combination with tislelizumab and chemotherapy as first-line therapy was well tolerated with compelling activity. The results presented at the ESMO (Free ESMO Whitepaper) Congress today included additional patient data stratified by tumoral PD-L1 expression levels based on visually-estimated combined positive score (vCPS), showing that robust objective clinical responses can be achieved from this combination regimen independently of PD-L1 expression.

"Initial data from this trial have shown that patients with high levels of DKK1 expression, a group with a poor prognosis, had encouraging responses to treatment. The additional data presented today show evidence that not only is DKK1 a critical biomarker in predicting response to DKN-01 and tislelizumab therapy, but also that the combination can induce deep responses regardless of the patient’s PD-L1 status, including particularly poor prognosis patients with both low PD-L1 and high DKK1," said Samuel Klempner, MD, Member of the Faculty at Massachusetts General Hospital Cancer Center and Harvard Medical School. "Taken together, these are promising results for the combination therapy of DKN-01 with tislelizumab and chemotherapy in first line patients with gastric or gastroesophageal junction cancers."

About the DisTinGuish Study

The DisTinGuish study (NCT04363801) is a Phase 2a study of DKN-01 in combination with tislelizumab, an anti-PD-1 antibody, with or without chemotherapy as first-line or second-line therapy in patients with inoperable, locally advanced, G/GEJ adenocarcinoma. The study is being conducted in two parts in the United States and the Republic of Korea. Enrollment of Part A has been completed with 25 first-line HER2- G/GEJ cancer patients whose tumors express either high levels of DKK1 (DKK1-high) or low levels of DKK1 (DKK1-low). Part B of the study will enroll up to 48 patients with second-line, DKK1-high G/GEJ cancer. Leap is conducting this combination study as part of an exclusive option and license agreement with BeiGene for the development of DKN-01 in Asia (excluding Japan), Australia, and New Zealand.

Key Findings

Among patients who received a full cycle of DKN-01 therapy, the ORR was 68.2%, with 90% ORR in DKK1-high patients and 56% in DKK1-low patients
Response was independent of PD-L1 expression, and particularly strong in the less favorable to checkpoint inhibitor therapy, PD-L1 low (vCPS < 5), population
Among those patients with PD-L1-low expression (vCPS < 5), the ORR was 79%, with 100% in DKK1-high patients and 57% in DKK1-low patients
Among those patients with PD-L1-high expression (vCPS ≥ 5), the ORR was 67%, with 75% ORR in DKK1-high patients and 50% in DKK1-low patients
DKK1 levels could not be determined in one patient who had PD-L1 expression data; however, the patient’s PD-L1 expression level was determined to be low (vCPS score 0) and the patient achieved a partial response
DKK1 expression and PD-L1 expression are not correlated
Median duration of response and progression-free survival data are not yet mature, and patient follow-up continues
Twenty-five first-line patients were enrolled, and as of the cut-off date of the presentation, 15 patients had experienced a partial response (PR), six patients had a best response of stable disease (SD), one patient was non-evaluable for response (NE), and three patients were unable to complete a full cycle of DKN-01 therapy (non-modified ITT (mITT)).

Among the 21 patients that had RNAscope DKK1 expression available, 12 were DKK1-high [9 PR, 1 NE, 2 non-mITT] and 9 were DKK1-low [5 PR, 4 SD].

Among the 20 patients that had PD-L1 expression available, 14 were PD-L1 low vCPS < 5 [11 PR, 3 SD] and 6 were PD-L1 high vCPS > 5 [4 PR, 1 SD, 1 NE].

A copy of the poster presentation is available on the Company’s website at View Source

Conference Call

Leap will host a conference call on Friday, September 17, 2021 at 8:00 a.m. Eastern Time to further discuss the data. In addition to Leap’s executive management team, Dr. Jaffer Ajani of M.D. Anderson Cancer Center and Dr. Samuel Klempner of Massachusetts General Hospital will be on the call. The call can be accessed by dialing (866) 589-0108 (U.S. and Canada) or (409) 231-2048 (international). The passcode for the conference call is 1729397. The presentation will be webcast live and may be accessed on the Investors page of the Company’s website at View Source, where a replay of the event will also be available for a limited time.

On September 15, 2021 4D pharma plc (AIM: DDDD, NASDAQ: LBPS), a pharmaceutical company leading the development of Live Biotherapeutic products (LBPs), a novel class of drug derived from the microbiome, reported that new biomarker analyses from two ongoing clinical trials of its lead immuno-oncology single strain Live Biotherapeutic, MRx0518, in both neoadjuvant and refractory solid tumor settings, at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress, September 16-21, 2021 (Press release, 4d Pharma, SEP 15, 2021, View Source [SID1234587722]).

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"At the core of 4D pharma’s platform is the importance of understanding the impact of Live Biotherapeutics on human biology to rationally select and develop candidates, predict and measure response. These new biomarker data provide us with critical guidance on the biological and mechanistic impact of MRx0518 therapy in patients with various solid tumors," said Dr. Alex Stevenson, Chief Scientific Officer, 4D pharma. "These new findings indicate the potential to predict patients most likely to respond to MRx0518 therapy based on tumor biology."

"Furthermore, the monotherapy data demonstrates that a short course of MRx0518 treatment is able to positively modulate prognostic indicators of immunotherapy response," he added. "We look forward to utilizing and implementing these important new findings as we work to progress this novel oncology Live Biotherapeutic through development towards approval."

Highlights of the two ESMO (Free ESMO Whitepaper) 2021 poster presentations:

Baseline biomarkers associated with clinical benefit in patients with solid tumors refractory to immune checkpoint inhibitors (ICIs) treated with live biotherapeutic MRx0518 in combination with pembrolizumab

Presentation Number: 1024P

Tumor biomarkers were assessed in patients with evaluable baseline samples (N = 12) in the ongoing Phase I/II study of MRx0518 in combination with anti-PD-1 immune checkpoint inhibitor (ICI) Keytruda (pembrolizumab)
At baseline, patients who achieved complete response, partial response or stable disease for at least six months (collectively ‘responders’, N=4) from the combination of MRx0518 with Keytruda (pembrolizumab) had significantly greater densities of CD3+FOXP3+CD8- regulatory T cells (Tregs) and CD3+KI67+ proliferating T cells in tumors at baseline, compared to patients with progressive disease (PD, N=8), p=0.0381 and p=0.0048, respectively.
In addition, significantly lower densities of CD68+ macrophages at baseline were observed in the tumor microenvironment of responders compared to patients with progressive disease, p=0.0303.
These data indicate the potential for MRx0518 to overcome Treg-mediated acquired resistance to cancer treatment, and presents a biomarker potentially able to identify patients most likely to respond to immunotherapy based on MRx0518. Further tumor sample analysis is ongoing for additional patients recruited into the study.

Neoadjuvant MRx0518 treatment is associated with significant gene and metagene signature changes in solid tumours

Presentation Number: 543P

Gene expression profiling of paired tumor samples pre- and post-MRx0518 monotherapy across multiple solid tumor types (N=15) showed that treatment with MRx0518 for two to four weeks was associated with anti-tumor immune activity including antigen presentation, innate immune processes, and interferon response.
Analysis of paired tumor samples also identified significant increases in mast cells, Th1, CD8+ T cell, neutrophil, endothelial cell and inflammatory chemokine metagene signatures following MRx0518 monotherapy.
Effects were particularly pronounced in the cohort of breast cancer patients (N=7), with significant increases observed in total and activated dendritic cells, CD8+ T cells and cytotoxic cells in the tumor micro-environment.
Functional metagene analysis also identified positive changes in prognostic indicators and metagene signatures predictive of immunotherapy response in patients with breast cancer, including inflammatory chemokines, cytotoxicity, lymphoid scores, and the Tumor Inflammation Signature (TIS)1 – demonstrated to retrospectively predict clinical benefit of anti-PD-(L)1 ICI therapy efficacy in various cancer types.
The immune biomarker data from this study of MRx0518, as a monotherapy dosed over a short period of just two to four weeks, demonstrates the potent activity of this oral Live Biotherapeutic directly on the human immune system, and the positive implications for clinical outcomes. This study is being conducted in collaboration with Imperial College London.

Both ePosters will be available under the "Posters and Publications" section of the 4D pharma website at www.4dpharmaplc.com at 7:30 GMT on Thursday 16th September 2021.

1 Ayers M, et al. J Clin Invest. 2017;127:2930–40

About MRx0518

MRx0518 is single strain Live Biotherapeutic product in development for the treatment of cancer. It is delivered as an oral capsule and stimulates the body’s immune system, directing it to produce cytokines and immune cells that are known to attack tumours. It is currently being evaluated in three clinical trials in cancer patients. MRx0518-I-001 is a neoadjuvant monotherapy study in a variety of solid tumours and is being conducted at Imperial College (London, UK). MRx0518-I-002 is in combination with KEYTRUDA (pembrolizumab) in patients who have previously progressed on anti PD-1 therapies. The Coordinating Investigator of the study is at The University of Texas MD Anderson Cancer Center, Houston, USA, with multiple additional sites in the US. The study is being conducted in collaboration with MSD, the tradename of Merck & Co., Inc., Kenilworth, NJ, USA. MRx0518-I-003 is in combination with preoperative radiotherapy in resectable pancreatic cancer. A fourth clinical trial, in collaboration with Merck KGaA and Pfizer Inc., of BAVENCIO (avelumab) in combination with MRx0518 as a first-line maintenance therapy for patients with locally advanced or metastatic urothelial carcinoma that has not progressed with first-line platinum-containing chemotherapy, is expected to commence in Q4 2021.

On September 15, 2021 AbCellera (Nasdaq: ABCL) reported that it entered into a multi-year, multi-target research collaboration and license agreement with Moderna to leverage AbCellera’s AI-powered technology to search and analyze natural immune responses to identify therapeutic antibodies against up to six targets selected by Moderna (Press release, AbCellera, SEP 15, 2021, View Source [SID1234587738]).

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"Over the past year, Moderna has demonstrated the speed and impact of its mRNA vaccine technology in helping to protect people around the world," said Carl Hansen, Ph.D., CEO and President of AbCellera. "We are excited to work alongside their team to advance RNA-encoded antibodies as a new frontier in genetic medicines."

Under the terms of the agreement, Moderna will have the rights to develop and commercialize antibodies resulting from the collaboration. AbCellera will receive research payments and is eligible to receive from Moderna downstream clinical and commercial milestone payments and royalties on net sales of products.

On September 15, 2021 aTyr Pharma, Inc. (Nasdaq: LIFE), a clinical stage biotherapeutics company engaged in the discovery and development of innovative medicines based on novel biological pathways, reported that it has commenced an underwritten public offering of shares of its common stock (Press release, aTyr Pharma, SEP 15, 2021, View Source [SID1234587755]). In addition, aTyr expects to grant the underwriters a 30-day option to purchase additional shares of its common stock. All of the shares to be sold in the offering are to be sold by aTyr. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed, or the actual size or terms of the offering.

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Piper Sandler and RBC Capital Markets are acting as joint book-running managers for the offering.

The proposed offering is being made pursuant to a shelf registration statement on Form S-3, including a base prospectus, filed by aTyr that was declared effective by the Securities and Exchange Commission ("SEC") on August 23, 2021. The offering will be made only by means of a written prospectus and prospectus supplement that form a part of the registration statement. An electronic copy of the preliminary prospectus supplement and accompanying prospectus relating to the offering will be filed with the SEC and will be available on the website of the SEC at www.sec.gov. Copies of the preliminary prospectus supplement, when available, and the accompanying prospectus relating to the offering may be obtained by contacting Piper Sandler & Co., Attention: Prospectus Department, 800 Nicollet Mall, J12S03, Minneapolis, Minnesota 55402, by telephone at (800) 747-3924 or by email at prospectus@psc.com; or RBC Capital Markets, LLC, Attention: Equity Syndicate, 200 Vesey Street, 8th Floor, New York, New York 10281, by telephone at (877) 822-4089 or by email at equityprospectus@rbccm.com. The final terms of the offering will be disclosed in a final prospectus supplement to be filed with the SEC.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.