Atreca to Present Analyses of Active B Cell Responses in Nearly 200 Cancer Patients Leading to Identification of More Than 1,000 Antibodies Targeting Non-Autologous Tumor

On November 15, 2018 Atreca, Inc., a biotechnology company focused on developing novel therapeutics based on a deep understanding of the human immune response, reported a presentation describing use of the Company’s proprietary Discovery Engine, featuring the Company’s Immune Repertoire Capture (IRC) technology, to characterize active B cell immune responses in nearly 200 cancer patients and to identify more than 1,000 tumor-targeting antibodies that bind to "public" tumor antigens (Press release, Atreca, NOV 15, 2018, View Source [SID1234531366]). The presentation, entitled "Identification of Functional Antitumor Antibodies from Immunoglobulin Sequence Repertoires of Cancer Patients," will be delivered by Daniel Emerling, Ph.D., Atreca’s Senior Vice President, Research, on Friday, November 16, 2018 at 1:05 p.m. Western European Time at the 10th Annual Protein and Antibody Engineering Summit (PEGS) Europe, taking place at the Lisbon Congress Center in Lisbon, Portugal, November 12-16, 2018.

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"Our unique discovery platform enables us to identify, in an industrialized manner, functional antibodies generated by the active immune responses of cancer patients responding to therapy," said Tito A. Serafini, Ph.D., Chief Strategy Officer and an Atreca founder. "The results presented at this conference describe analyses of such antibodies from nearly 200 patients, including the identification of more than 1,000 patient antibodies that target non-autologous tumor selectively across multiple tumor types by binding to public antigens. We are using this library of tumor-targeting antibodies to develop therapeutics designed to treat large patient groups, while continuing to discover additional antibodies to add to our library. Our first program to emerge from our platform, ATRC-101, is anticipated to enter clinical development in 2019."

ADC Therapeutics Announces Presentations at 60th American Society of Hematology (ASH) Annual Meeting

On November 14, 2018 ADC Therapeutics, an oncology drug discovery and development company that specializes in the development of proprietary antibody drug conjugates (ADCs), reported that data from Phase I clinical trials of ADCT-402 (loncastuximab tesirine) and ADCT-301 (camidanlumab tesirine) have been selected for oral and poster presentations at the 60th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting, which is being held December 1-4 in San Diego (Press release, ADC Therapeutics, NOV 14, 2018, View Source [SID1234596073]).

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Jay Feingold, MD, PhD, Chief Medical Officer and Senior Vice President of Clinical Development at ADC Therapeutics, said, "We look forward to sharing updated data from our first-in-human clinical trials of ADCT-402 and ADCT-301 in multiple subtypes of lymphoma at the 2018 ASH (Free ASH Whitepaper) Annual Meeting. Interim data show that ADCT-402, which targets CD19, has demonstrated durable single-agent anti-tumor activity in patients with diffuse large B-cell lymphoma, follicular lymphoma and mantle cell lymphoma who have failed other therapies or have no available treatment options. In addition, new data on ADCT-301 highlight the CD25-targeting ADC’s impressive overall and complete response rates in heavily pretreated patients with classical Hodgkin lymphoma, as well as its encouraging clinical activity in T-cell lymphoma."

Oral Presentations

Title: Interim Results from the First-in-Human Clinical Trial of Adct-402 (Loncastuximab Tesirine), a Novel Pyrrolobenzodiazepine-Based Antibody Drug Conjugate, in Relapsed/Refractory Diffuse Large B-Cell Lymphoma
Abstract Number: 398
Session: 626. Aggressive Lymphoma (Diffuse Large B-Cell and Other Aggressive B-Cell Non-Hodgkin Lymphomas)—Results from Prospective Clinical Trials: New Agents
Date and Time: Sunday, December 2, 2018; 12:15 p.m. PT
Location: Marriott Marquis San Diego Marina, Pacific Ballroom 20
Presenter: John Radford, MD, FRCP, Manchester Academic Health Centre, The University of Manchester and The Christie NHS Foundation Trust, Manchester, UK

Title: Phase 1 Study of Adct-301 (Camidanlumab Tesirine), a Novel Pyrrolobenzodiazepine-Based Antibody Drug Conjugate, in Relapsed/Refractory Classical Hodgkin Lymphoma
Abstract Number: 928
Session: 624. Hodgkin Lymphoma and T/NK Cell Lymphoma—Clinical Studies: Hodgkin Lymphoma: Chemotherapy and Response Adapted Approaches
Date and Time: Monday, December 3, 2018; 5:15 p.m. PT
Location: San Diego Convention Center, Room 6F
Presenter: Mehdi Hamadani, MD, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI

Poster Presentations

Title: Safety and Efficacy of Adct-402 (Loncastuximab Tesirine), a Novel Antibody Drug Conjugate, in Relapsed/Refractory Follicular Lymphoma and Mantle Cell Lymphoma: Interim Results from the Phase 1 First-in-Human Study
Abstract Number: 2874
Session: 623. Mantle Cell, Follicular, and Other Indolent B-Cell Lymphoma—Clinical Studies: Poster II
Date and Time: Sunday, December 2, 2018; 6-8 p.m. PT
Location: San Diego Convention Center, Hall GH
Presenter: Paolo Caimi, MD, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH

Title: Adct-301 (Camidanlumab Tesirine), a Novel Pyrrolobenzodiazepine-Based CD25-Targeting Antibody Drug Conjugate, in a Phase 1 Study of Relapsed/Refractory Non-Hodgkin Lymphoma Shows Activity in T-Cell Lymphoma
Abstract Number: 1658
Session: 624. Hodgkin Lymphoma and T/NK Cell Lymphoma—Clinical Studies: Poster I
Date and Time: Saturday, December 1, 2018; 6:15-8:15 p.m. PT
Location: San Diego Convention Center, Hall GH
Presenter: Graham P. Collins, MB, BS, DPhil, Oxford University Hospitals, NHS Trust, Oxford, UK

ADCT-402 is currently being evaluated in three clinical trials, including a pivotal trial in patients with relapsed or refractory diffuse large B-cell lymphoma. ADCT-301 is being evaluated in three clinical trials. To learn more about the company’s ADC programs, visit ADC Therapeutics’ Booth #117 located in the Exhibit Hall of the San Diego Convention Center.

For more information about the ASH (Free ASH Whitepaper) Annual Meeting, please visit View Source

About ADCT-402

ADCT-402 (loncastuximab tesirine) is an antibody drug conjugate (ADC) composed of a humanized monoclonal antibody that binds to human CD19, conjugated through a linker to a pyrrolobenzodiazepine (PBD) dimer toxin. Once bound to a CD19-expressing cell, ADCT-402 is internalized into the cell where enzymes release the PBD-based warhead. CD19 is a clinically validated target for the treatment of B-cell malignancies. The PBD-based warhead has the ability to form highly cytotoxic DNA interstrand cross-links, blocking cell division and resulting in cell death. ADCT-402 is being evaluated in a pivotal Phase II clinical trial in patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) (NCT03589469). The U.S. Food and Drug Administration granted orphan drug designation to ADCT-402 for the treatment of DLBCL and mantle cell lymphoma.

About ADCT-301

ADCT-301 (camidanlumab tesirine) is an antibody drug conjugate (ADC) composed of a monoclonal antibody that binds to CD25 (HuMax-TAC, licensed from Genmab A/S), conjugated to the pyrrolobenzodiazepine (PBD) dimer payload tesirine. Once bound to a CD25-expressing cell, ADCT-301 is internalized into the cell where enzymes release the PBD-based warhead. The intra-tumor release of its PBD warhead may cause bystander killing of neighboring tumor cells. In addition, the PBD warhead will

trigger immunogenic cell death, which in turn will strengthen the immune response against tumor cells. ADCT-301 is being evaluated in ongoing Phase Ia/Ib clinical trials in patients with relapsed or refractory Hodgkin lymphoma and non-Hodgkin lymphoma (NCT02432235), as well as a Phase Ib clinical trial in solid tumors (NCT03621982).

ArQule to Present at the 30th Annual Piper Jaffray Healthcare Conference on November 28, 2018

On November 14, 2018 ArQule, Inc. (Nasdaq: ARQL) reported that Paolo Pucci, Chief Executive Officer, and Marc Schegerin, Senior Vice President, Head of Strategy, Finance, and Communication will present at the 30th Annual Piper Jaffray Healthcare Conference on November 28, 2018, at 1:50pm ET at the Lotte New York Palace in New York City (Press release, ArQule, NOV 14, 2018, View Source [SID1234531291]).

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The live webcast of the presentation will be available via the "Investors & Media" section of ArQule’s website, www.arqule.com, under "Events & Presentations." A replay of the webcast will be available shortly after the conclusion of the presentation.

Mateon Therapeutics Reports Third Quarter 2018 Financial Results

On November 14, 2018 Mateon Therapeutics, Inc. (OTCQB:MATN), a biopharmaceutical company developing investigational drugs for the treatment of orphan oncology indications, reported third quarter 2018 financial results (Press release, Mateon Therapeutics, NOV 14, 2018, View Source [SID1234531307]).

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For the three months ended September 30, 2018, Mateon reported a net loss of $0.7 million, compared to a net loss of $3.5 million reported for the three months ended September 30, 2017. As of September 30, 2018, Mateon had cash of $1.1 million.

"We are inching closer to finalizing our regulatory submission for a new clinical phase 2a study of CA4P combined with the checkpoint inhibitor anti-PD1 in patients with advanced melanoma. I believe that our scientific approach for increasing the anti-tumor immunity of checkpoint inhibitors by inducing ischemic necrosis of tumor cells with CA4P is as good as any of the other checkpoint inhibitor approaches, although it is certainly less well-recognized," stated William D. Schwieterman, M.D., Chief Executive Officer of Mateon Therapeutics. "In addition, we are continuing to screen patients for enrollment into our study of OXi4503 for relapsed/refractory acute myeloid leukemia and myelodysplastic syndromes. Our target is a total of approximately ten patients at the 9.76 mg/m2 dose currently being evaluated."

CStone Pharma Files for Hong Kong IPO to Support its Oncology Portfolio

Suzhou’s CStone Pharma has filed for a Hong Kong IPO. Founded in 2015, CStone has quickly built a portfolio of 14 oncology candidates. The company says its three core products are IO drugs — PD-1, PD-L1 and CTLA-4 antibodies — which will be paired with other of its assets to offer combination therapies. As part of its development, CStone has in-licensed molecularly targeted compounds from Agios (a $424 million deal) and Blueprint (a $386 million, three-drug agreement), which CStone will develop in greater China.

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