Synaffix Announces Expansion of ADC Collaboration with MacroGenics  

On March 14, 2023 Synaffix B.V. (Synaffix), a biotechnology company focused on commercializing its clinical-stage platform technology for the development of antibody-drug conjugates (ADCs) with best-in-class therapeutic index, has reported the expansion of its license agreement with MacroGenics Inc. (Nasdaq: MGNX), a biopharmaceutical company focused on developing and commercializing innovative monoclonal antibody-based therapeutics for the treatment of cancer (Press release, Synaffix, MAR 14, 2023, View Source [SID1234628663]).

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The expansion comes just a year after the original February 2022 deal, increasing the total potential consideration by up to $2.2 billion, plus tiered low to high single-digit royalties on potential net sales of any resulting products. MacroGenics currently has the option to pursue up to seven ADC programs under the expanded deal, which includes three programs from the original collaboration.

Under the original licensing agreement, MacroGenics gained access to Synaffix’s clinical stage GlycoConnect antibody conjugation technology, HydraSpace polar spacer technology, as well as select toxSYN linker-payloads (SYNtecan E, SYNeamicin D and SYNeamicin G), each designed to enable ADCs with best-in-class efficacy and tolerability. These may be combined with MacroGenics’ proprietary antibody and bispecific DART platform technologies to generate next-generation ADCs.

Sonnet BioTherapeutics to Present Clinical Data from the SB101 Study with SON-1010 at the AACR 2023 Annual Meeting

On March 14, 2023 Sonnet BioTherapeutics Holdings, Inc. (NASDAQ:SONN) ("Sonnet" or the "Company"), a biopharmaceutical company developing innovative targeted biologic drugs, reported that data from the company-sponsored SB101 multiple-dose clinical trial (NCT05352750) of SON-1010 (IL12-FHAB) in adult patients with advanced solid tumors will be presented in a poster session at the upcoming American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2023, to be held April 14-19, in Orlando, Florida (Press release, Sonnet BioTherapeutics, MAR 14, 2023, View Source [SID1234628662]).

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Presentation details:

Title: Clinical development of a novel form of interleukin-12 with extended pharmacokinetics
Session Title: Phase I and First-in-Human Clinical Trials in Progress
Presentation Type: Poster
Session Date and Time: Tuesday April 18, 2023, 1:30 PM – 5:00 PM
Abstract Number: CT245
Location: Poster Section 46

Sensei Biotherapeutics to Present New Preclinical Data for SNS-103, a Conditionally Active Monoclonal Antibody Targeting ENTPDase1 (CD39), at the American Association for Cancer Research (AACR) Annual Meeting 2023

On March 14, 2023 Sensei Biotherapeutics, Inc. (Nasdaq: SNSE), an immuno-oncology company focused on the discovery and development of next-generation therapeutics for cancer patients, reported that it will present new preclinical data on SNS-103, a conditionally active, monoclonal antibody targeting ENTPDase1 (ecto-nucleoside triphosphate diphosphohydrolase-1, also known as CD39) at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2023, being held April 14-19, 2023 in Orlando, FL (Press release, Sensei Biotherapeutics, MAR 14, 2023, View Source [SID1234628661]).

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Presentation Details:

Title: Identification of conditionally active antibodies that selectively block CD39 activity in the acidic tumor microenvironment
Presentation Type: Poster
Session Category: Tumor Biology
Session Title: Inflammation and Tumor Progression
Date and time: Tuesday, April 18, 2023 1:30 PM – 5:00 p.m. ET
Location: Poster Section 5

The abstract will be available online on the AACR (Free AACR Whitepaper) Online Program Planner. The poster will be made available on the Sensei Bio website following the presentation.

Sana Biotechnology Announces the Acceptance of Four Abstracts for Presentation at the 2023 American Association for Cancer Research Annual Meeting

On March 14, 2023 Sana Biotechnology, Inc. (NASDAQ: SANA), a company focused on creating and delivering engineered cells as medicines, reported that four abstracts, including a late-breaking abstract, highlighting preclinical data from both the hypoimmune and fusogen platforms have been accepted for poster presentation at the 2023 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting taking place April 14-19, 2023 in Orlando, FL (Press release, Sana Biotechnology, MAR 14, 2023, View Source [SID1234628660]).

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Late-breaking poster details:

Title: Increased potency of CD8-targeted fusosomes enhances CAR gene delivery to resting primary T cells
Session Title: Late-Breaking Research: Experimental and Molecular Therapeutics 3
Session Date: Wednesday, April 19, 2023
Session Time: 9:00 a.m. – 12:30 p.m. ET
Location: Poster Section 35
Abstract Number: LB311

Poster details:

Title: Modulation of resting T cell status to enhance transduction and CAR T expansion following exposure to CD8-targeted fusosomes
Session Category: Experimental and Molecular Therapeutics
Session Title: Gene and Vector-based Therapy
Session Date: Monday, April 17, 2023
Session Time: 1:30 p.m. – 5:00 p.m. ET
Location: Poster Section 16
Abstract Number: 2734

Title: Development of a novel, fully human anti-CD19 chimeric antigen receptor for in vivo delivery via CD8-targeted fusosome
Session Category: Experimental and Molecular Therapeutics
Session Title: Gene and Vector-based Therapy
Session Date: Monday, April 17, 2023
Session Time: 1:30 p.m. – 5:00 p.m. ET
Location: Poster Section 16
Abstract Number: 2735

Title: Engineered hypoimmune CAR T cells provide lasting tumor control in immunocompetent allogeneic humanized mice even with re-challenge
Session Category: Immunology
Session Title: CAR T-cell Therapy 2
Session Date: Tuesday, April 18, 2023
Session Time: 9:00 a.m. – 12:30 p.m. ET
Location: Poster Section 23
Abstract Number: 4091

Full regular abstracts and late-breaking abstract titles are available for viewing via the AACR (Free AACR Whitepaper) Online Itinerary Planner located here: View Source!/10828. Late-breaking abstract text will be posted to the AACR (Free AACR Whitepaper) Online Itinerary Planner and Meeting App on Friday, April 14, 2023 at 12:00 p.m. ET.

RAPT Therapeutics Reports Fourth Quarter And Year End Financial Results

On March 14, 2023 RAPT Therapeutics, Inc. (Nasdaq: RAPT), a clinical-stage, immunology-based therapeutics company focused on discovering, developing and commercializing oral small molecule therapies for patients with significant unmet needs in inflammatory diseases and oncology, reported financial results for the fourth quarter and year ended December 31, 2022 (Press release, RAPT Therapeutics, MAR 14, 2023, https://investors.rapt.com/news-releases/news-release-details/rapt-therapeutics-reports-fourth-quarter-and-year-end-financial [SID1234628659]).

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"2022 was an important year of progress, as we advanced both of our two lead programs, RPT193 and FLX475, in inflammatory disease and cancer, respectively," said Brian Wong, M.D., Ph.D., President and Chief Executive Officer of RAPT Therapeutics. "This progress has positioned us for future milestones in 2023, including our anticipated initiation of a Phase 2a trial with RPT193 in asthma this quarter and a clinical data update from our ongoing Phase 2 trial of FLX475 in multiple cancer indications, which we are targeting for the second half of this year. For our Phase 2b trial of RPT193 in atopic dermatitis, we now expect topline results in mid-2024 due to recent slower than expected patient enrollment as we did not see the seasonal uptick that we anticipated. Our cash position is strong and we expect it to provide runway into mid-2025, well beyond the expected data readout."

Financial Results for the Fourth Quarter and Year Ended December 31, 2022

Fourth Quarter Ended December 31, 2022

Net loss for the fourth quarter of 2022 was $23.0 million, compared to $17.9 million for the fourth quarter of 2021.

Research and development expenses for the fourth quarter of 2022 were $19.5 million, compared to $14.3 million for the same period in 2021. The increase in research and development expenses was primarily due to higher development costs related to RPT193 and FLX475, personnel and stock-based compensation expense.

General and administrative expenses for the fourth quarter of 2022 were $5.0 million, compared to $4.5 million for the same period in 2021. The increase in general and administrative expenses was primarily due to increases in expenses for personnel, stock-based compensation and facilities, partially offset by a decrease in professional services.

Year Ended December 31, 2022

Net loss for the year ended December 31, 2022 was $83.8 million, compared to $69.2 million in 2021.

Research and development expenses for the year ended December 31, 2022 were $67.1 million, compared to $57.0 million in 2021. The increase in research and development expenses was primarily due to higher development costs related to RPT193 and increases in expenses for early-stage programs, personnel and laboratory supplies, partially offset by decreases in development costs related to FLX475, facilities costs and stock-based compensation expense.

General and administrative expenses for the year ended December 31, 2022 were $20.2 million, compared to $16.0 million in 2021. The increase in general and administrative expenses was primarily due to increases in expenses for professional services, personnel, stock-based compensation and facilities.

As of December 31, 2022, the Company had cash, cash equivalents and marketable securities of $249.1 million. In December 2022, we completed an underwritten public offering of 4,338,104 shares of common stock and received approximately $75.0 million in net proceeds, after deducting underwriting discounts and other offering-related costs.