Incyte to Present at Upcoming Investor Conference

On November 9, 2021 Incyte (Nasdaq:INCY) reported that it will present at the Evercore ISI 4th Annual HealthCONx Conference (Virtual) on Tuesday, November 30, 2021 at 2:15 p.m. ET (Press release, Incyte, NOV 9, 2021, View Source [SID1234594828]).

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The presentation will be webcast live and can be accessed at Investor.Incyte.com and will be available for replay for 30 days.

Targovax announces two posters at the 2021 Society for Immunotherapy of Cancer (SITC) Annual Meeting

On November 9, 2021 Targovax ASA (OSE: TRVX), a clinical stage immuno-oncology company developing immune activators to target hard-to-treat solid tumors, reported that the posters being presented at the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) Annual Meeting now are available at the Company’s website (Press release, Targovax, NOV 9, 2021, View Source [SID1234594805]).

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Both posters are scheduled for presentation 13 November 2021 at the SITC (Free SITC Whitepaper) congress.

Poster title: A randomised open-label phase I/II study adding ONCOS-102 to pemetrexed/cisplatin in patients with unresectable malignant pleural mesothelioma – 24-month survival data
E-poster number: 462
Presenter: Dr Luis Paz-Ares, Medical Oncology, Hospital Universitario 12 Octubre, Madrid, Spain
Poster title: Consistent pattern of immune activation induced by oncolytic adenovirus ONCOS-102 across diverse types of solid tumors
E-poster number: 368
Presenter: Dr Lone Ottesen, Chief Development Officer, Targovax

Aravive Announces Positive Preliminary Data from Phase 1b Trial Evaluating Batiraxcept (AVB-500) in Combination with Cabozantinib in Clear Cell Renal Cell Carcinoma to be Presented at 2021 Society for Immunotherapy of Cancer Annual Meeting

On November 9, 2021 Aravive, Inc. (Nasdaq: ARAV), a clinical-stage oncology company developing transformative, targeted therapeutics to treat life-threatening cancers, reported that positive new data from the Phase 1b portion of its open-label Phase 1b/2 trial evaluating batiraxcept (AVB-500) in combination with cabozantinib in patients with clear cell renal cell carcinoma (ccRCC) will be presented at the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper)’s (SITC) (Free SITC Whitepaper) 36th Annual Meeting on November 13, 2021 (Press release, Aravive, NOV 9, 2021, View Source [SID1234594804]). The presentation will highlight interim safety, pharmacokinetic (PK), pharmacodynamic (PD), and clinical activity data.

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"We are encouraged by the preliminary performance of batiraxcept in combination with cabozantinib in patients with clear cell renal cell carcinoma," said Gail McIntyre, Ph.D., DABT, Chief Executive Officer of Aravive. "These results highlight the potential of batiraxcept to improve outcomes for patients with advanced kidney cancer. We look forward to sharing these new clinical data with the research and medical community at this year’s SITC (Free SITC Whitepaper) Annual Meeting."

As of July 21, 2021, seven patients received at least one dose of batiraxcept 15 mg/kg in combination with cabozantinib, six patients were ongoing treatment, and five patients were evaluable for efficacy. No dose-limiting toxicities were observed. Trough levels at cycle 1 day 15 were above the minimal efficacious concentration identified from the Company’s model informed drug development approach, and serum GAS6 levels were suppressed prior to cycle 2 day 1. A best overall response of partial response was observed in 3 of 5 patients (60%, unconfirmed as of July 21, 2021), based on investigator assessment, RECIST v 1.1 criteria. In addition, all patients demonstrated tumor decrease from baseline.

Aravive’s presentation at the SITC (Free SITC Whitepaper) Annual Meeting will include updated safety, PK, PD, and clinical activity data from a larger set of patients treated with batiraxcept 15 mg/kg in combination with cabozantinib as of October 16, 2021.

Poster Presentation Details

Title: A Phase 1b/2 randomized study of AVB-S6-500 in combination with cabozantinib versus cabozantinib alone in patients with advanced clear cell renal cell carcinoma who have received front-line treatment

Presenter: Reshma Rangwala, M.D., Ph.D., Chief Medical Officer of Aravive

Date: November 13, 2021

Time: 7:00 AM – 8:30 PM ET

Location: Hall E

For additional information, please visit the SITC (Free SITC Whitepaper) 36th Annual Meeting website: View Source

Conference Call Information
Aravive will host a conference call and webcast on November 12, 2021 at 8:30 a.m. ET to discuss these clinical data. The conference call may be accessed by dialing (877) 423-9813 (domestic) and (201) 689-8573 (international) and referring to conference ID 13724115. A webcast of the conference call will be available in the Investors section of the Aravive website at View Source The archived webcast will be available on Aravive’s website after the conference call.

About the Batiraxcept (AVB-500) Phase 1b/2 ccRCC Trial
Aravive initiated the Phase 1b portion of the Phase 1b/2 trial of batiraxcept in ccRCC in March 2021. The Phase 1b portion of the clinical trial, a dose escalation study, is expected to enroll approximately 18 patients in three dosing arms (15 mg/kg, 20 mg/kg and 25 mg/kg) to evaluate tolerability, pharmacokinetics, pharmacodynamics, and clinical activity of batiraxcept in combination with cabozantinib. The controlled, randomized, open-label Phase 2 portion of the clinical trial is expected to enroll approximately 45 patients and investigate the recommended batiraxcept dose identified during the Phase 1b portion of the clinical trial in combination with cabozantinib versus cabozantinib alone. The primary endpoint is progression-free survival. The trial is enrolling patients with advanced ccRCC who have progressed on front-line treatment. The Phase 1b/2 trial is listed on clinicaltrials.gov NCT04300140.

About Batiraxcept (AVB-500)
Batiraxcept is a therapeutic recombinant fusion protein that has been shown to neutralize GAS6 activity by binding to GAS6 with very high affinity in preclinical models. In doing so, batiraxcept selectively inhibits the GAS6-AXL signaling pathway, which is upregulated in multiple cancer types including ovarian, renal and pancreatic cancer. In preclinical studies, GAS6-AXL inhibition has shown anti-tumor activity in combination with a variety of anticancer therapies, including radiation therapy, immuno-oncology agents, and chemotherapeutic drugs that affect DNA replication and repair. Increased expression of AXL and GAS6 in tumors has been correlated with poor prognosis and decreased survival and has been implicated in therapeutic resistance to conventional chemotherapeutics and targeted therapies. Batiraxcept is currently being evaluated in multiple clinical trials and has been granted Fast Track designation by the U.S. Food and Drug Administration and orphan drug designation by the European Commission in platinum resistant recurrent ovarian cancer.

Selecta Biosciences Reports Third Quarter 2021 Financial Results and Provides Business Update

On November 9, 2021 Selecta Biosciences, Inc. (NASDAQ: SELB), a biotechnology company leveraging its clinically validated ImmTOR platform to develop tolerogenic therapies that selectively mitigate unwanted immune responses, reported financial results for the third quarter ended September 30, 2021 and provided a business update (Press release, Selecta Biosciences, NOV 9, 2021, View Source [SID1234594803]).

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"The third quarter of 2021 was filled with many significant advancements that further validated the value and breadth of our innovative ImmTOR platform, including important milestones across our pipeline and the establishment of numerous collaborations that will continue to propel us forward in the year ahead," said Carsten Brunn, Ph.D., president and chief executive officer of Selecta. "We recently presented topline data from the empty AAV8 capsid study, SEL-399 in healthy volunteers. We believe this pioneering proof-of-concept study showed for the first time ImmTOR’s potential to address one of the biggest limitations in gene therapy: preventing the formation of anti-AAV8 neutralizing antibodies after ImmTOR treatment with AAVs and enabling re-dosing of life-saving gene therapies. We are excited to build on these exciting findings, which will inform our clinical development strategy and bring hope to those patients suffering from monogenic disease. We continue to prosecute our clinical pipeline, execute value accretive business development with world class partners and add talent and depth to our leadership team."

Recent Highlights and Anticipated Upcoming Milestones:
Enzyme Therapies:

SEL-212 for chronic refractory gout: Enrollment for the Phase 3 DISSOLVE clinical program for the treatment of chronic refractory gout, which was licensed to Sobi, is progressing as planned.
Topline data is expected in the second half of 2022.
ImmTOR with IgA1 protease for IgA nephropathy: Immunoglobulin A nephropathy (IgAN) is a leading cause of chronic kidney disease (CKD) and renal failure. Current treatments fail to address the root cause of the disease.
Investigational New Drug, or IND, enabling studies are underway. Selecta expects to file an IND in IgA nephropathy in 2022 and will provide additional updates.
Gene Therapies:

First-in-human trial of SEL-399: In collaboration with AskBio, Selecta initiated the first-in-human, dose-escalation trial of SEL-399, an adeno-associated viral serotype 8 (AAV8) empty vector capsid (EMC-101) containing no DNA combined with ImmTOR. The key objective was to determine the dose regimen of ImmTOR to effectively mitigate the formation of antibodies to AAV8 capsids used in gene therapies. Data was released on November 8, 2021. Key findings included:
No Serious Adverse Events were reported. All treatment-related adverse events were expected for ImmTOR, readily monitorable, and transient
At 30 days 6 of 6 or 100% of subjects that received 0.3 mg/kg of ImmTOR exhibited an anti-AAV8 neutralizing antibody titer of 1:25 or less. 4 of 6 or 67% of subjects at this dose had a titer of 1:5 or less
At 30 days 6 of 9 or 67% of subjects that received 0.15 mg/kg of ImmTOR exhibited an anti-AAV8 neutralizing antibody titer of 1:25 or less. 2 of 9 or 22% of subjects at this dose had a titer of 1:5 or less
At 90 days 2 of 6 subjects in the 0.3 mg/kg cohort were observed to have sustained control of neutralizing antibodies with titers of 1:25 or less
Consistent with preclinical data, we observed that the single dose ImmTOR cohorts saw delayed formation of neutralizing antibodies eventually reaching similar median levels of neutralizing antibodies to the control group by day 90
While most subjects treated with ImmTOR showed increases in antibody titers by Day 90, preclinical studies in mice and nonhuman primates indicate that if antibodies can be controlled at Day 30, we can maintain control with additional two monthly doses of ImmTOR.

SEL-302 for methylmalonic acidemia (MMA): IND filed for SEL-302 (MMA-101 in combination with ImmTOR), for the treatment of MMA, a rare metabolic disease in which the body cannot break down certain proteins and fats.
IND filed in Q3 2021, 30-day FDA review period has expired.
FDA has orally communicated they are still considering certain aspects of the submission related to chemistry, manufacturing and control, or CMC.
Formal FDA decision on IND expected by the end of November.
SEL-313 for ornithine transcarbamylase deficiency (OTC deficiency): Selecta’s proprietary gene therapy product candidate, SEL-313, is being developed to treat OTC deficiency, a rare genetic urea cycle disorder that causes ammonia to accumulate in the blood due to mutations in the OTC gene.
SEL-313 is currently in preclinical development and a clinical trial application, or CTA, and/or IND filing are expected in 2022.
Restoring Self-Tolerance in Autoimmune Diseases:

Selecta continues IND-enabling work on an ImmTOR-based approach to treating primary biliary cholangitis (PBC) and expects to file an IND in PBC in the second half of 2022.
Corporate Updates:

Strategic Collaborations:
Gene Therapies
Takeda Pharmaceutical Company Limited ("Takeda"): Strategic licensing agreement to develop next-generation gene therapies in two lysosomal storage disorders. The collaboration leverages Selecta ImmTOR platform to enable redosing of transformative therapies.
Genovis: Strategic licensing agreement to advance a next-generation IgG protease. This partnership leverages Genovis’ proprietary and differentiated immunoglobulin G (IgG) protease, IdeXork (Xork), and Selecta’s ImmTOR platform to enable the dosing of transformative gene therapies in patients with pre-existing adeno-associated virus (AAV) immunity and treat certain IgG-mediated autoimmune diseases. Xork shows low crossreactivity to pre-existing antibodies in human sera. The combination of Xork with ImmTOR has the potential to address two of the biggest immunological challenges to gene therapy – expanding access to gene therapies by overcoming pre-existing antibodies to AAV and enabling vector re-dosing.
Enzymes
Ginkgo Bioworks ("Ginkgo"): Partnership to design novel enzymes and proteins with transformative therapeutic potential to advance treatments for orphan and rare diseases. This partnership leverages Ginkgo’s cell programing platform and Selecta’s ImmTOR platform to create transformative biologic and enzymatic therapies.
Autoimmune
Cyrus Biotechnology ("Cyrus"): Established protein engineering collaboration combining Selecta’s ImmTOR platform with Cyrus’ ability to radically redesign protein therapeutics. The lead program in the collaboration is a proprietary interleukin-2 (IL-2) protein agonist designed to selectively promote expansion of regulatory T cells (Treg) for the treatment of patients with autoimmune diseases and other deleterious immune conditions. The combination of ImmTOR with a Treg-selective IL-2 agonist has the potential to be a best-in-class therapeutic profile.
Leadership Expansion:
Kevin Tan was appointed as chief financial officer. Mr. Tan brings deep financial expertise and experience in the gene therapy and rare disease landscape. His impressive track record in capital management and financings, in both the biotech and investment sectors, will be invaluable as Selecta continues to pursue new partnership opportunities and advance multiple assets through the clinic.
Matthew Bartholomae was appointed as General Counsel, Board Secretary and transitioned from his previous role at Selecta as Associate General Counsel, Board Secretary.
Third Quarter 2021 Financial Results:

Cash Position: Selecta had $140.0 million in cash, cash equivalents, marketable securities, and restricted cash as of September 30, 2021, which compares to cash, cash equivalents, and restricted cash of $140.1 million as of December 31, 2020. Selecta believes its available cash, cash equivalents, marketable securities, and restricted cash will be sufficient to meet its operating requirements into the second quarter of 2023.

Net cash used in operating activities was $28.9 million for the nine months ended September 30, 2021, as compared to $42.1 million of cash provided by operating activities for the same period in 2020.
Revenue: Revenue for the third quarter of 2021 was $24.4 million, compared to $4.6 million for the same period in 2020. Revenue of $24.3 million was recognized under the license agreement with Sobi resulting from the shipment of clinical supply and the reimbursement of costs incurred for the Phase 3 DISSOLVE clinical program. The significant revenue increase is the result of the continued enrollment of the Phase 3 DISSOLVE clinical program that was initiated in the third quarter of 2020. Additionally, during the third quarter, Selecta recognized $0.2 million for shipments under the license agreement with Sarepta.

Research and Development Expenses: Research and development expenses for the third quarter 2021 were $21.0 million, which compares with $14.0 million for the same period in 2020. During the quarter ended September 30, 2021, there was an increase in expenses incurred for preclinical programs, salaries, headcount, and AskBio collaboration costs.

General and Administrative Expenses: General and administrative expenses for the third quarter 2021 were $5.4 million, which compares with $4.4 million for the same period in 2020. The increase in costs was primarily the result of salaries, professional fees, and stock compensation expenses.

Net loss: For the third quarter 2021, Selecta reported net loss of $17.9 million, or net loss per share of $0.16, compared to a net loss of $9.7 million, or net loss per share of $0.09 for the same period in 2020.

Conference Call and Webcast Reminder
Selecta management will host a conference call at 8:30 AM ET today to provide a corporate update and review the company’s third quarter 2021 financial results. Individuals may participate in the live call via telephone by dialing (844) 845-4170 (domestic) or (412) 717-9621 (international) and may access a teleconference replay for one week by dialing (877) 344-7529 (domestic) or (412) 317-0088 (international) and using confirmation code 10147803. Investors and the public can access the live and archived webcast of this call and a copy of the presentation via the Investors & Media section of the company’s website, www.selectabio.com.

Shattuck Labs Announces Preliminary Clinical Data from Ongoing Phase 1 Clinical Trials of ARC Fusion Proteins SL-172154 and SL-279252

On November 9, 2021 Shattuck Labs, Inc. (Shattuck) (NASDAQ: STTK), a clinical-stage biotechnology company pioneering the development of bi-functional fusion proteins as a new class of biologic medicine for the treatment of patients with cancer and autoimmune disease with three ongoing Phase 1 clinical trials, reported the first clinical data from its Agonist Redirected Checkpoint (ARC) platform compounds, SL-172154 and SL-279252, in patients with advanced cancer (Press release, Shattuck Labs, NOV 9, 2021, View Source [SID1234594798]).

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For SL-172154 (SIRPα-Fc-CD40L), initial monotherapy Phase 1 dose-escalation data show favorable safety and tolerability for a CD40 agonist, high levels of CD47 target occupancy and CD40 target engagement, and escalating pharmacodynamic activity in heavily pretreated, platinum resistant ovarian cancer patients. For SL-279252 (PD1-Fc-OX40L), anti-tumor activity has been observed in heavily pretreated patients, including one confirmed partial response (PR), and a second unconfirmed PR, both in patients with PD-1/L1 inhibitor pretreated non-cutaneous melanoma. Both SL-172154 and SL-279252 have been well tolerated, and a recommended Phase 2 dose has not yet been identified. These data will be presented at the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper)’s 36th annual meeting being held Wednesday, November 10, 2021, to Sunday, November 14, 2021. Additional data from both programs will be presented at the meeting and on an investor call on November 12, 2021.

"We are incredibly pleased to provide our first clinical update for our ARC fusion proteins, SL-172154 and SL-279252, which are both in Phase 1 dose-escalation trials," said Lini Pandite, MBChB, M.B.A., Chief Medical Officer of Shattuck. "The preliminary anti-tumor activity in the first-in-human dose escalation of SL-279252 in a heavily pretreated, PD-L1 unselected patient population, is highly encouraging. In addition, the tolerable safety profile, near-complete target occupancy of CD47 and target engagement of CD40, and compelling pharmacodynamic effects observed give us confidence that SL-172154 has now emerged as a differentiated CD47 inhibitor. Our observations of target occupancy and safety data to date suggests that we will not be limited in continuing dose escalation to identify a recommended Phase 2 dose with maximal pharmacodynamic activity. We are also pleased to report that the Investigational New Drug application is now open to expand clinical development of SL-172154 into studies in AML and HR-MDS."

SL-172154 Clinical Update

As of the data cut-off of July 6, 2021, 14 heavily pretreated, platinum resistant ovarian cancer patients with a median of five prior therapies were treated with intravenous administration of SL-172154 across four dose levels on two schedules: Schedule 1 (day 1, 8, 15, 29, Q2 weeks) at 0.1, 0.3 mg/kg and Schedule 2 (weekly) at 0.3, 1.0, 3.0 mg/kg.

SL-172154 has been well tolerated at all dose levels, with no dose-limiting toxicities reported. Low grade infusion-related reactions occurred in 53% of subjects, however all subjects have completed dosing. A maximum tolerated dose (MTD) has not been reached and dose escalation continues to 10 mg/kg.

The serum concentration of SL-172154 has increased through 3 mg/kg, as target engagement on both CD47 and CD40 has approached nearly 100%. The terminal elimination phase has not yet been characterized, likely due to target-mediated drug disposition. Significant dose-dependent increases in IL-12, along with post-dose increases in multiple other serum cytokines, including CCL2, CCL3, CCL4, and CCL22, and concurrent with rapid margination of CD40+ B cells and monocytes from the peripheral blood have been observed. Initial analysis of pre- and on-treatment tumor biopsies suggests that intravenous infusion of SL-172154 induces increases in multiple immune populations within the tumor microenvironment.

Anti-tumor activity of CD47 inhibitors is dependent upon the presence of a pro-phagocytic "eat me" signal, which can be provided by tumor-targeted antibodies with FcγR binding function, chemotherapy, or radiation. Based on our current understanding of the combined profile of SL-172154, we plan to begin a combination study with liposomal doxorubicin in patients with platinum resistant ovarian cancer in the first half of 2022. In addition, an IND is now open to study SL-172154 as monotherapy and in combination with azacitidine in HR-MDS and TP53 mutant AML patients, as well as in combination with azacitidine and venetoclax in patients with AML. The combined data from these trials will inform Shattuck’s global development strategy to progress SL-172154 to become the leading CD47- and CD40-targeted cancer immunotherapy.

SL-279252 Clinical Update

As of the data cut-off of June 11, 2021, 43 patients were enrolled and dosed intravenously with SL-279252 (median age 64 years; 56% male; median of 3 [range of 0-5] prior systemic therapies for metastatic disease). 30 patients were treated on Schedule 1 (day 1, 8, 15, 29, then every two weeks) from dose level 0.0001-6 mg/kg, and 13 patients were treated on Schedule 2 (weekly) from dose level 0.3-3 mg/kg. 58% of patients were previously treated with one or more PD-1/L1 inhibitors. Both PD-L1 and OX40 expression were low in available pre-treatment tumor biopsies. SL-279252 has been well tolerated, with no treatment-related dose-limiting toxicities reported to date. An MTD has not been reached.

Serum concentrations of SL-279252 have increased with dose, and the PK profile suggests that OX40 and PD-L1 binding approached saturating concentrations at the 6 mg/kg dose level. A preliminary half-life of ~23 hours has been observed. As a point of reference, the approved dose of PD-L1 blocking antibodies is approximately 10-15 mg/kg. Dose-dependent increases in post-treatment margination of OX40+CD4+ T cells was noted through 6 mg/kg and accompanied by a trend toward increasing numbers of CD8+ memory T cells in the peripheral blood. Post-treatment biopsies suggest that treatment with SL-279252 was associated with large increases in CD8+ cytolytic T cells in the tumors of some patients.

A confirmed PR was observed in a patient with metastatic ocular melanoma who had received five prior lines of therapy, including a PD-1 inhibitor. An unconfirmed PR was observed in a patient with mucocutaneous melanoma who had received therapy with anti-CTLA-4 and anti-PD-1 inhibitors. Stable disease was observed in an additional 12 patients, including six patients who experienced stable disease for greater than 24 weeks.

Dose escalation is ongoing using Schedule 1, at 12 mg/kg.

Shattuck Webcast Investor Meeting

Shattuck will host a conference call and webcast at 8:00 a.m. ET on Friday, November 12, 2021, to discuss the clinical data from SL-172154 and SL-279252 and to provide a general corporate update. Participants are invited to listen by dialing (833) 614-1555 (domestic) or (516) 575-8754 (international) five minutes prior to the start of the call and providing the passcode 4068596. A live webcast presentation will be available here or on the company’s website at www.ShattuckLabs.com under Events & Presentations. A replay of the webcast will be archived on the company’s website following the presentation.

About SL-172154

SL-172154 (SIRPα-Fc-CD40L) is an investigational ARC fusion protein designed to simultaneously inhibit the CD47/SIRPα checkpoint interaction and activate the CD40 costimulatory receptor to bolster an anti-tumor immune response in patients with advanced cancers. Two Phase 1 clinical trials are ongoing, the first for patients with advanced and platinum resistant ovarian cancer (NCT04406623) and the second for patients with advanced squamous cell carcinoma of the head, neck or skin (NCT04502888).

About SL-279252

SL-279252 (PD1-Fc-OX40L) is an investigational ARC fusion protein designed to simultaneously inhibit the PD-1/PD-L1 checkpoint interaction and activate the OX40 costimulatory receptor to bolster an anti-tumor immune response receptor in patients with advanced solid tumors. A Phase 1 trial in patients with solid tumors and lymphoma is ongoing (NCT03894618).