On January 24, 2022 ERYTECH Pharma (Nasdaq & Euronext: ERYP), a clinical-stage biopharmaceutical company developing innovative therapies by encapsulating therapeutic drug substances inside red blood cells, reported the presentation of results of two trials evaluating eryaspase in advanced pancreatic cancer at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Gastrointestinal Cancers Symposium (ASCO GI) on January 21, 2022 (Press release, ERYtech Pharma, JAN 24, 2022, View Source [SID1234606729]).

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Abstract # 581 – rESPECT: A Phase I dose-escalation study of eryaspase in combination with modified FOLFIRINOX in locally advanced and metastatic pancreatic ductal adenocarcinoma: Interim update (NCT04292743).

Dr Marcus Noel, MD, medical oncologist at Georgetown University Lombardi Comprehensive Cancer Center, Washington, DC, USA, and principal investigator of the rESPECT trial, presented an interim update of this Phase 1 trial evaluating eryaspase in combination with mFOLFIRINOX, a fluoropyrimidine- and irinotecan-based chemotherapy regimen, as first-line treatment for advanced pancreatic cancer.

To date, eleven patients have been enrolled with a mean age of 68. Three patients were enrolled at a dose level of 75 U/kg and eight at a dose level of 100 U/kg. The novel combination of mFOLFIRINOX plus eryaspase was well tolerated and no dose limiting toxicity (DLT) was observed. The maximum tolerated dose (MTD) has been declared with 5-FU 2400 mg/m2, Oxaliplatin 85 mg/m2, Irinotecan 150 mg/m2 and eryaspase 100 units/kg.

Among ten patients with imaging available to evaluate response, 5 (50%) had partial response (PR) and 5 (50%) had stable disease (SD), corresponding to a disease control rate (PR + SD) of 100%. One patient with locally advanced disease became eligible for resection after receiving therapy.

Dr Marcus Noel, MD, Principal Investigator of the rESPECT IST, commented: "The early results from the rESPECT study are highly encouraging for the combination of eryaspase and modified FOLFIRINOX in first-line pancreatic cancer, with the MTD now established and initial signs of clinical activity demonstrated. We plan to expand enrolment on rESPECT to further evaluate efficacy. Alongside a group of international experts, we are now in the process of potentially considering a larger study in light of both our experience with rESPECT to date and the results observed in patients treated with the combination of eryaspase and FOLFIRI in TRYbeCA-1."

Abstract # 518 – TRYbeCA-1: A randomized, Phase 3 study of eryaspase in combination with chemotherapy versus chemotherapy alone as second-line treatment in patients with advanced pancreatic adenocarcinoma (NCT03665441).

Prof. Pascal Hammel, MD, PhD, medical oncologist at University Paris-Saclay, Hôpital Paul Brousse (APHP), France, and co-principal investigator of the TRYbeCA-1 trial, presented the final results of this Phase 3 trial. The top-line results had been reported in October 2021.

As reported before, the trial did not meet primary efficacy endpoint of overall survival (OS). The median OS for patients treated with eryaspase plus chemotherapy was 7.5 months (95% CI, 6.5-8.3), compared to 6.7 months (95% CI, 5.4-7.5) for chemotherapy alone.

The prespecified subgroup of patients treated with eryaspase and FOLFIRI, a fluoropyrimidine- and irinotecan-based chemotherapy regimen, demonstrated a nominal increase in median OS of 2.3 months versus FOLFIRI alone, from 5.7 to 8 months (HR = 0.81; 95% CI, 0.6-1.1). The FOLFIRI treated patients represented approximately 42% of the patients in this trial.

The treatment was well tolerated, and the addition of eryaspase did not enhance the cytotoxicity of chemotherapy.

Following Prof. Hammel’s presentation, the discussant, Dr Nilofer Saba Azad, MD, Department of Oncology, Johns Hopkins Sidney Kimmel Cancer Center, concluded that TRYbeCA-1 was well designed with appropriate power and stratification factors. Furthermore, the study findings open the possibility for additional study of eryaspase in combination with FOLFIRI in neo-adjuvant, adjuvant and first-line settings.

"While it was initially disappointing to be unable to demonstrate an improvement in survival across the entire population in one of the largest prospective second-line pancreatic cancer studies conducted to date, TRYbeCA-1 has improved our understanding of pancreatic cancer in this setting, and importantly, has also identified a potential utility of the combination of eryaspase with fluoropyrimide- and irinotecan-containing regimens in this difficult to treat cancer. I look forward to furthering discussions with the pancreatic cancer community on future potential clinical trials with eryaspase," said Prof. Pascal Hammel, MD, PhD, Co-principal Investigator of the TRYbeCA-1 trial.

Dr Iman El-Hariry, MD, PhD, Chief Medical Officer at ERYTECH, added: "I would like to thank all investigators and patients who are participating and have participated in the rESPECT and the TRYbeCA-1 studies. Pancreatic cancer remains very difficult to treat with few treatment options, but we have been encouraged by the clinical activity observed with eryaspase in both trials. We continue to evaluate the path forward for potential further clinical development focused on evaluating eryaspase in combination with fluoropyrimidine-and irinotecan-based chemotherapy. Meanwhile, the company is currently preparing a BLA to seek approval for eryaspase for the treatment of ALL patients who developed hypersensitivity to E. coli-derived asparaginase, based on the results of a Phase 2 clinical trial sponsored by the NOPHO group1. The Company intends to submit the BLA in the first quarter of 2022, subject to completion of remaining data requested by the FDA."

On January 24, 2022 TScan Therapeutics, Inc. (Nasdaq: TCRX), a biopharmaceutical company focused on the development of T-cell receptor (TCR) engineered T cell therapies (TCR-T) for the treatment of patients with cancer, reported that the U.S. Food and Drug Administration (FDA) has cleared its investigational new drug (IND) application to evaluate TSC-100 for the treatment of patients with hematologic malignancies who are undergoing allogeneic hematopoietic cell transplantation (HCT) (Press release, TScan Therapeutics, JAN 24, 2022, View Source [SID1234606728]). The target of TSC-100 is the minor histocompatibility antigen HA-1, which is a lineage-specific antigen found on blood cells. The Company will now submit the clinical protocol to Institutional Review Boards (IRB) for the initial study sites and expects to begin dosing patients in the first half of 2022.

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TSC-101 is targeted to the lineage-specific blood cell antigen HA-2, which is a novel target for cell therapy. The Company received a brief communication from the FDA indicating that the TSC-101 IND has been placed on hold pending additional assessment of the risk of off-tumor reactivity for TSC-101. The Company expects to receive further written communication from the FDA in the near future and plans to work with the agency to resolve its questions as quickly as possible.

"FDA clearance of our IND application for TSC-100 is an important milestone for our lead liquid tumor program as it marks the first clinical-stage product candidate to advance from our pipeline of therapies geared to treat unmet needs in major cancer indications," said David Southwell, President and Chief Executive Officer. "We are excited about the potential of both TSC-100 and TSC-101 to prevent relapse in leukemia patients following HCT. We are looking forward to initiating our Phase 1 multi-arm clinical trial in the first half of this year, with preliminary data expected in the second half of 2022. We will be opening the TSC-101 arm upon FDA clearance of the TSC-101 IND."

"FDA clearance of our TSC-100 IND is significant as it allows us to move forward with the umbrella clinical protocol for our hematologic cancer study," said Gavin MacBeath, Chief Scientific Officer. "This is a great accomplishment for our organization and validation of our TCR discovery platform. Importantly, the INDs for TSC-100 and TSC-101 were based on our proprietary T-Integrate cell engineering platform, which includes our advanced non-viral vector and our in-house GMP manufacturing capabilities. We intend to use this same platform to develop enhanced TCR-T cell therapies for our solid tumor program."

With the acceptance of the IND for TSC-100 in hematologic malignancies, TScan plans to initiate a multi-arm Phase 1 umbrella trial designed to evaluate TSC-100 compared to standard-of-care in patients who are undergoing allogeneic HCT. Pending acceptance from the FDA regarding the IND for TSC-101, the Company will then initiate the TSC-101 arm of this trial in the same patient population. Primary endpoints include safety and dose-finding, and secondary and exploratory endpoints include relapse rate versus standard-of-care as well as qualitative biological readouts including minimal residual disease and kinetics of donor chimerism. Once the recommended Phase 2 dose has been identified, the study will transition to Phase 2 to assess relapse rates of treated patients versus the standard-of-care arm

On January 24, 2022 TG Therapeutics, Inc. (NASDAQ: TGTX), reported that Michael S. Weiss, the Company’s Chairman and Chief Executive Officer, will participate in a fireside chat during the B. Riley Securities’ 2022 Virtual Oncology Investor Conference, taking place on Thursday, January 27, 2022, at 10:00 AM ET (Press release, TG Therapeutics, JAN 24, 2022, View Source [SID1234606727]).

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A live webcast of this presentation will be available on the Events page, located within the Investors & Media section, of the Company’s website at View Source A replay of the webcast will be available on TG’s website following the event.

On January 24 2022 Arbutus Biopharma Corporation (Nasdaq: ABUS), a clinical-stage biopharmaceutical company leveraging its extensive virology expertise to develop novel therapeutics that target specific viral diseases, reported its 2022 corporate objectives and provided a financial update (Press release, Arbutus Biopharma, JAN 24, 2022, View Source [SID1234606726]).

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William Collier, President and CEO, stated, "This year is an important one for Arbutus and the HBV patient community based on the many accomplishments we achieved in 2021. With five clinical trials on-going in HBV that include either AB-729 or AB-836, we are now poised for several key data readouts throughout this year that we anticipate will support Phase 2b clinical development. In addition, we intend to advance AB-101, our oral PD-L1 inhibitor compound for HBV which is designed to re-awaken the immune system, through IND-enabling studies this year. Similarly, this year we intend to complete IND-enabling studies for our RNA destabilizer, AB-161."

Mr. Collier continued, "As the COVID-19 pandemic lingers, we are expediting our efforts to advance novel oral pan-coronavirus compounds against viral protease and polymerase targets. We intend to advance an Mpro candidate into IND-enabling studies for the treatment of SARS-CoV-2 this year.

"Lastly, we are entering 2022 from a position of financial strength, with a cash runway expected to extend into the second quarter of 2024. I am thrilled with the company’s accomplishments and execution in 2021 and look forward to providing further updates over the course of this coming year."

Summary of 2022 Anticipated Key Milestones:

HBV Franchise:

Announce preliminary AB-729 data in the second half of 2022 from the following three on-going Phase 2a proof-of-concept clinical trials in patients with chronic hepatitis B (HBV) infection:
AB-729 in combination with ongoing standard-of-care nucleos(t)ide analogues ("NA") therapy and short courses of PEG-IFNα-2a.
AB-729 plus vebicorvir ("VBR"), Assembly Bio’s lead investigational HBV core inhibitor (capsid inhibitor) candidate, and a NA.
AB-729 plus ATI-2173, Antios’ proprietary Active Site Polymerase Inhibitor Nucleotide (ASPIN), and Viread (tenofovir disoproxil fumarate).
Initiate a triple combination Phase 2a proof-of-concept clinical trial in the first half of 2022 to evaluate AB-729, combined with VTP-300, Vaccitech’s therapeutic vaccine, and a NA.
Present at a medical conference the long-term on- and off-treatment follow-up data from our Phase 1a/1b clinical trial evaluating multiple doses and dosing schedules of AB-729.
Announce data from our Phase 1a/1b clinical trial evaluating AB-836 in patients with chronic HBV in the first half of 2022.
Complete IND-enabling studies with our oral PD-L1 inhibitor compound, AB-101, in the second half of 2022.
Complete IND-enabling studies for AB-161, our next-generation oral HBV specific RNA destabilizer, in the second half of 2022. Arbutus has conducted extensive non-clinical safety evaluations with AB-161 that gives us confidence in this molecule’s ability to circumvent the peripheral neuropathy findings seen in non-clinical safety studies with the Company’s first-generation oral RNA destabilizer, AB-452.
COVID-19 & Pan-Coronavirus Franchise

Nominate a candidate that inhibits the SARS-CoV-2 nsp5 main protease (Mpro) in the first half of 2022 and advance into IND-enabling studies.
Continue lead optimization activities for an Nsp12 viral polymerase candidate.
Other Opportunities

Explore potential oncology applications for internal PD-L1 portfolio.
Financial Update:

We had cash, cash equivalents and investments in marketable securities totaling $191 million as of December 31, 2021. This amount does not include a $40 million upfront payment and $15 million of proceeds resulting from the sale of common stock to Qilu Pharmaceutical as part of the exclusive licensing agreement and strategic partnership to develop and commercialize AB-729 in mainland China, Hong Kong, Macau and Taiwan. These amounts were received in January 2022.
For the full year of 2021 we received $135 million of net proceeds from the issuance of common shares under Arbutus’s "at-the-market" offering program. As of December 31, 2021, we had approximately 145 million common shares issued and outstanding, and approximately 11.4 million stock options outstanding.
We expect our net cash burn to range from $90 to $95 million in 2022. We believe our cash, cash equivalents and investments in marketable securities of $191 million as of December 31, 2021, plus the amounts received from Qilu Pharmaceutical in January 2022 are sufficient to fund the Company’s operations into the second quarter of 2024.
The preliminary cash, cash equivalents and investments, the amount received from the issuance of common shares under Arbutus’s "at-the-market" offering program and the common shares and stock options outstanding as of December 31, 2021 were calculated prior to the completion of an audit by Arbutus’ independent registered public accounting firm and are therefore subject to adjustment.
COVID-19 Impact

In December 2019 an outbreak of a novel strain of coronavirus (COVID-19) was identified in Wuhan, China. This virus has been declared a pandemic by the World Health Organization and has spread to nearly every country in the world. The impact of this pandemic has been, and will likely continue to be, extensive in many aspects of society. The pandemic has resulted in and will likely continue to result in significant disruptions to businesses. A number of countries and other jurisdictions around the world have implemented extreme measures to try and slow the spread of the virus. These measures include the closing of businesses and requiring people to stay in their homes, the latter of which raises uncertainty regarding the ability to travel to hospitals in order to participate in clinical trials. Additional measures that have had, and will likely continue to have, a major impact on clinical development, at least in the near-term, include shortages and delays in the supply chain, and prohibitions in certain countries on enrolling subjects and patients in new clinical trials. While we have been able to progress with our clinical and pre-clinical activities to date, it is not possible to predict if the COVID-19 pandemic will materially impact our plans and timelines in the future.

About AB-729

AB-729 is an RNA interference (RNAi) therapeutic specifically designed to reduce all HBV viral proteins and antigens, including hepatitis B surface antigen, which is thought to be a key prerequisite to enable reawakening of a patient’s immune system to respond to the virus. AB-729 targets hepatocytes using Arbutus’ novel covalently conjugated N-acetylgalactosamine (GalNAc) delivery technology that enables subcutaneous delivery. Clinical data generated thus far has shown single- and multi-doses of AB-729 to be generally safe and well-tolerated while providing meaningful reductions in hepatitis B surface antigen and hepatitis B DNA. AB-729 is currently in multiple Phase 2a clinical trials.

About AB-836

AB-836 is a next generation oral hepatitis B virus (HBV) capsid inhibitor that interacts with HBV core protein, which in turn is required for viral replication. The current standard-of-care therapy for HBV is primarily nucleos(t)ide analogues that inhibit the viral polymerase and significantly reduce, but do not eliminate viral replication. AB-836 in combination with nucleos(t)ide analogues is designed to completely eliminate viral replication in infected cells by preventing the assembly of functional viral capsids. In addition, AB-836 has been shown to inhibit the replenishment of covalently closed circular DNA (cccDNA), the viral genetic reservoir which the virus needs to replicate itself. Preliminary data from an on-going Phase 1a/1b clinical trial has shown that AB-836 is generally safe and well-tolerated and provides robust antiviral activity.

About HBV

Hepatitis B is a potentially life-threatening liver infection caused by the hepatitis B virus (HBV). HBV can cause chronic infection which leads to a higher risk of death from cirrhosis and liver cancer. Chronic HBV infection represents a significant unmet medical need. The World Health Organization estimates that over 250 million people worldwide suffer from chronic HBV infection, while other estimates indicate that approximately 2 million people in the United States suffer from chronic HBV infection. Approximately 900,000 people die every year from complications related to chronic HBV infection despite the availability of effective vaccines and current treatment options.

On January 24, 2022 HCW Biologics Inc. (the "Company") (NASDAQ: HCWB), a biopharmaceutical company focused on discovering and developing novel immunotherapies to lengthen health span by disrupting the link between inflammation and age-related diseases, reported that the Masonic Cancer Center, University of Minnesota was cleared by the U.S. Food and Drug Administration (FDA) to proceed to evaluate the Company’s lead drug candidate, HCW9218, in a Phase 1 clinical trial in patients with advanced solid tumors with progressive disease after prior chemotherapies (Press release, HCW Biologics, JAN 24, 2022, View Source [SID1234606725]). HCW9218 is an injectable, bifunctional fusion protein complex designed to drive anti-tumor activity by activating desired immune responses to attack cancer cells while simultaneously blocking unwanted immunosuppressive activities.

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The Principal Investigator of the clinical trial is Melissa A. Geller, M.D., M.S., Professor and Division Director of Gynecologic Oncology in the Department of Obstetrics, Gynecology and Women’s Health at the University of Minnesota. Dr. Geller stated, "Because the immunosuppressive tumor microenvironment limits the success of current therapies, there is a critical need for novel immune based therapies for advanced solid tumors. The estimated percentages of patients who are eligible for and who respond to cancer treatments such as checkpoint inhibitor drugs remain modest. We are excited to be able to sponsor a clinical study for treatment-resistant solid tumors using HCW9218. This immunotherapeutic might be the answer we need to augment anti-tumor activities of existing standards of care chemotherapies."

"HCW9218 is a unique combination of a TGF-ß receptor that neutralizes a highly immunosuppressive cytokine secreted by tumors, and IL-15, a potent cytokine that stimulates the natural killer and CD8+-T cell cytotoxicity. As a result, this bifunctional immunotherapeutic has the potential to drive significant anti-tumor activity," noted Jeffrey A. Miller, M.D., the Deputy Director of the Masonic Cancer Center, and co-Principal Investigator on this study. Dr. Miller continued, "HCW9218 also may define a new category of cancer treatment through modifying factors related to drug resistance and disease recurrence. We plan to conduct correlative studies to evaluate this potential in our current clinical trial."

Hing C. Wong, Ph.D., Founder and CEO of HCW Biologics, stated, "HCW Biologics is honored to have the Masonic Cancer Center as the sponsor for the second clinical trial to evaluate HCW9218 in difficult-to-treat cancers. This is an important milestone for HCW Biologics and our efforts to advance the development of potentially groundbreaking immunotherapeutic candidates for cancer and other age-related diseases. We have demonstrated that HCW9218 can augment the anti-tumor activities and lessen the side effects of chemotherapies by reducing the therapy-induced senescent cells in preclinical animal models."