Tvardi Therapeutics Announces First Patients Dosed in Phase 2 Trial of TTI-101 in Metastatic Breast Cancer

On February 23, 2023 Tvardi Therapeutics, Inc., a privately held, clinical-stage biopharmaceutical company focused on the development of STAT3 inhibitors, reported that the first breast cancer patients have been dosed in the Phase 1b/2 REVERT trial of TTI-101 added to palbociclib and aromatase inhibitor (AI) therapy in adult patients with HR+/HER2- palbociclib-resistant metastatic breast cancer (Press release, Tvardi Therapeutics, FEB 23, 2023, View Source [SID1234627634]). The first patients were dosed at the Washington University School of Medicine Siteman Cancer Center by Cynthia Ma, MD, PhD, Professor of Medicine, Clinical Director of the Breast Cancer Program, Section of Medical Oncology.

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In the US, approximately 74,000 patients per year are diagnosed with HR+/HER2- metastatic breast cancer. These patients are generally treated with CDK4/6 inhibitors (such as palbociclib) and an AI. Unfortunately, the vast majority of these patients acquire resistance to palbociclib and AI therapy and their tumors continue to metastasize. Recent research has demonstrated that this resistance is driven by the activation of a protein in tumors known as STAT3. Tvardi has developed a STAT3 inhibitor, TTI-101, that has been well tolerated and has clinical activity across a broad range of tumors. The REVERT trial has been designed to add TTI-101 to palbociclib and AI therapy when breast cancer patients acquire resistance to standard therapy.

"I am excited the Washington University School of Medicine Siteman Cancer Center was the first to enroll patients to this important trial. The addition of TTI-101 to palbociclib and AI directly addresses the mechanism which leads to patients becoming resistant to the standard of care. TTI-101 has the potential to improve clinical outcomes for HR+/HER2- metastatic breast cancer patients," said Cynthia Ma, MD, PhD.

"STAT3 is a well-known driver of tumor resistance. Based on Phase 1 trial data, TTI-101 specifically targets STAT3, and is well-positioned to reverse the resistance pathway for metastatic breast cancer," said Imran Alibhai, PhD, CEO of Tvardi. "This is the first of three Phase 2 trials in metastatic breast cancer, advanced liver cancer, and idiopathic pulmonary fibrosis that Tvardi has initiated to address diseases driven by STAT3."

For more information about the REVERT breast cancer trial that is enrolling at sites throughout the US, please visit ClinicalTrials.gov (NCT05384119).

Syros to Report Fourth Quarter and Full Year 2022 Financial Results on Thursday, March 2, 2023

On February 23, 2023 Syros Pharmaceuticals (NASDAQ:SYRS), a biopharmaceutical company committed to advancing new standards of care for the frontline treatment of hematologic malignancies, reported that it will host a live conference call and webcast at 8:30 a.m. ET on Thursday, March 2, 2023 to report its fourth quarter and full year 2022 financial results and provide a corporate update (Press release, Syros Pharmaceuticals, FEB 23, 2023, View Source [SID1234627633]).

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To access the live conference call, please dial (888) 575-5167 (domestic) or (416) 764-8687 (international) and refer to conference ID 74534085. A webcast of the call will also be available on the Investors & Media section of the Syros website at www.syros.com. An archived replay of the webcast will be available for approximately 30 days following the call.

Madrigal Pharmaceuticals Provides Corporate Updates and Reports 2022 Fourth Quarter and Full Year Financial Results

On February 23, 2023 Madrigal Pharmaceuticals, Inc. (NASDAQ:MDGL), a clinical-stage biopharmaceutical company pursuing novel therapeutics for nonalcoholic steatohepatitis (NASH), reported a summary of corporate updates and reports fourth quarter and full year 2022 financial results (Press release, Synta Pharmaceuticals, FEB 23, 2023, View Source [SID1234627631]).

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Paul Friedman, M.D., Chief Executive Officer of Madrigal, stated, "The positive Phase 3 MAESTRO-NASH results reported in Q4 2022 have allowed us to advance our regulatory filing preparations, accelerate our prelaunch market development programs, and strengthen our financial position with funding to support the company’s operations through the potential accelerated approval of resmetirom in the U.S. The results have also reinforced our conviction in the value of resmetirom. The Institute for Clinical and Economic Review (ICER), a non-profit organization that conducts pharmacoeconomic assessments of new therapies, recently published a draft Evidence Report indicating that resmetirom has the potential to be a cost-effective treatment for NASH patients with significant fibrosis."

Becky Taub, M.D., Chief Medical Officer and President of Research & Development of Madrigal, stated, "We remain on track to file our NDA for resmetirom in the first half of 2023. The filing will be supported by positive Phase 3 biopsy results, a standalone Phase 3 safety study, and two ongoing outcomes studies designed to verify clinical benefit following accelerated approval. Based on current screening and enrollment trends, we anticipate that the 54-month outcomes portion of MAESTRO-NASH will be fully enrolled prior to NDA filing in the first half of 2023. We believe that data from the 52-week liver biopsy primary endpoints of MAESTRO-NASH, in which both the NASH resolution and fibrosis reduction primary endpoints were achieved, support NDA and market authorization filings for accelerated approval in the U.S. and Europe. In addition, the noninvasive data from MAESTRO-NASH will provide a framework for identification and monitoring of patients treated with resmetirom in real world clinical practice following a potential approval."

Remy Sukhija, Chief Commercial Officer of Madrigal, added, "The positive results from MAESTRO-NASH reinforce and increase our confidence in the resmetirom commercial opportunity. Our market research indicates specialist healthcare providers, patients and payers in the U.S. and Europe view NASH with significant fibrosis as an urgent unmet need and understand the potential value that resmetirom can deliver. I’m pleased with the momentum we have established with our market development initiatives and we look forward to launching our new disease education campaign for patients in the coming days."

Summary of Madrigal 2022 Accomplishments

In 2022, Madrigal achieved multiple business and clinical milestones, including two positive Phase 3 data readouts from the MAESTRO program.


In January, Madrigal announced topline data from the Phase 3 MAESTRO-NAFLD-1 safety study of resmetirom. Primary and key secondary endpoints from the study were achieved: resmetirom was safe, well-tolerated and provided statistically significant improvements in key measures of liver and cardiovascular health.


In May, Madrigal secured a $250 million term loan facility with Hercules Capital, Inc. to support the resmetirom clinical program and ramp-up for a potential launch in the U.S.


In June, Madrigal presented results from the MAESTRO-NAFLD-1 study in a late-breaking oral abstract at the European Association for the Study of the Liver’s (EASL) International Liver Congress.


Also in June, Madrigal launched the NASHExplored website for healthcare professionals and expanded its partnerships with leading patient advocacy groups.


In August, Madrigal initiated the Phase 3 MAESTRO-NASH OUTCOMES trial. This noninvasive trial will evaluate the effects of resmetirom on progression to liver decompensation events in patients with compensated NASH cirrhosis. Positive results from this trial have the potential to expand the indication for resmetirom to include patients with compensated NASH cirrhosis and provide a faster route to full approval in noncirrhotic NASH.


In November, Madrigal presented additional data from the Phase 3 MAESTRO trials in oral presentations at the American Association for the Study of Liver Disease (AASLD) Liver Meeting.


In December, Madrigal announced positive topline results from the Phase 3 MAESTRO-NASH trial. Resmetirom achieved both primary endpoints with both daily oral doses, 80 mg and 100 mg, relative to placebo. The results established resmetirom as the first and only investigational medication to demonstrate both NASH resolution and fibrosis improvement in Phase 3.


Also in December, Madrigal announced $300+ million in financing events to support planned commercial and clinical activities through potential accelerated approval of resmetirom in the U.S.

Financial Results for the Three and Twelve Months Ended December 31, 2022

As of December 31, 2022, Madrigal had cash, cash equivalents and marketable securities of $358.8 million, compared to $270.3 million at December 31, 2021. The increase in cash and marketable securities was primarily from equity offerings and our Loan Facility, partially offset by cash used in operations of $224.9 million.

Operating expenses were $85.3 million and $293.6 million for the three and twelve month periods ended December 31, 2022, compared to $64.6 million and $242.5 million in the comparable prior year periods.

Research and development expenses for the three and twelve month periods ended December 31, 2022 were $70.7 million and $245.4 million, compared to $52.9 million and $205.2 million in the comparable prior year periods. The increases are attributable primarily to additional activities related to the Phase 3 clinical trials, an increase in head count, and an increase in non-cash stock compensation expense.

General and administrative expenses for the three and twelve month periods ended December 31, 2022 were $14.6 million and $48.1 million, compared to $11.7 million and $37.3 million in the comparable prior year periods. The increases are attributable primarily to increases in commercial preparation activities, including an increase in headcount and an increase in non-cash stock compensation expense.

Interest income for the three and twelve month periods ended December 31, 2022 was $1.1 million and $2.2 million, compared to $0.1 million and $0.4 million in the comparable prior year periods. The increases in interest income for the latest three and twelve month periods were due primarily to a higher average interest rates in 2022.

Interest expense for the three and twelve month periods ended December 31, 2022 was $1.7 million and $4.0 million, compared to $0 million and $0 million in the comparable prior year periods. The increase in interest expense was as a result of the Loan Facility we entered with Hercules and increases in interest rates throughout the year.

About the Resmetirom Phase 3 Registration Program for the Treatment of NASH

Madrigal is currently conducting four Phase 3 clinical trials to demonstrate the safety and efficacy of resmetirom for the treatment of NASH: MAESTRO-NASH, MAESTRO-NAFLD-1, MAESTRO-NAFLD-OLE, and MAESTRO-NASH-OUTCOMES.

MAESTRO-NASH is a multicenter, randomized, double-blind, placebo-controlled Phase 3 study of resmetirom in patients with liver biopsy-confirmed NASH and was initiated in March 2019. The subpart H portion of the study enrolled more than 1,000 patients with biopsy-proven NASH (at least half with F3 (advanced) fibrosis, the remainder F2 or F1B (moderate fibrosis) with a few earlier F1 patients, randomized 1:1:1 to receive once-daily resmetirom 80 mg, resmetirom 100 mg, or placebo. After 52 weeks of treatment, a second liver biopsy is performed. The dual primary surrogate endpoints on biopsy were NASH resolution with ≥2-point reduction in NAS (NAFLD Activity Score), and with no worsening of fibrosis OR a 1-point decrease in fibrosis with no worsening of NAS. Achievement of either primary endpoint was considered a successful trial outcome. A key secondary endpoint was lowering of LDL-C.

Patients enrolled in the MAESTRO-NASH study (up to 2,000 in total) continue on therapy after the initial 52-week treatment period for up to 54 months to accrue and measure hepatic clinical outcome events including progression to cirrhosis on biopsy (52 weeks and 54 months) and hepatic decompensation events, as well as all-cause mortality.

MAESTRO-NAFLD-1 was initiated in December 2019 and the 52-week multicenter, randomized, placebo-controlled Phase 3 study of resmetirom in over 1,200 patients with NAFLD, presumed NASH, has completed the double-blind arms and an open-label 100 mg arm. An additional open-label active treatment arm in patients with early (well-compensated) NASH cirrhosis is ongoing. The primary endpoint was to evaluate the safety and tolerability of resmetirom. A separate 52 week Phase 3 clinical trial, an open-label extension study of MAESTRO-NAFLD-1 (MAESTRO-NAFLD-OLE), is ongoing.

Patients in the 52-week Phase 3 MAESTRO-NAFLD-1 study were randomized 1:1:1:1 to receive once-daily resmetirom 80 mg, resmetirom 100 mg, placebo in double-blind arms or resmetirom 100 mg in an open-label arm. MAESTRO-NAFLD-1 (unlike MAESTRO-NASH), did not include a liver biopsy and represents a "real-life" NASH study. Patients with 3 metabolic risk factors were documented with NASH or NAFLD by historical liver biopsy or noninvasive techniques. Using noninvasive measures, MAESTRO-NAFLD-1 was designed to provide incremental safety information to support the NASH indication as well as provide additional data regarding clinically relevant key secondary efficacy endpoints to better characterize the potential clinical benefits of resmetirom on cardiovascular- and liver-related endpoints. The primary safety endpoint and several key secondary endpoints were met, including LDL-C, apolipoprotein B, and triglyceride lowering and reduction of liver fat as determined by MRI-PDFF. Additional secondary and exploratory endpoints were assessed including reduction in liver enzymes, FibroScan, and MRE scores, and other NASH biomarkers.

Data from the 52-week first 1,000 patient portion of MAESTRO-NASH, together with data from MAESTRO-NAFLD-1, MAESTRO-NAFLD-OLE, Phase 2 and Phase 1 data, including safety parameters, will form the basis for a planned subpart H submission to FDA for accelerated approval of resmetirom for treatment of NASH.

In August 2022, Madrigal initiated MAESTRO-NASH-OUTCOMES, a randomized double-blind placebo-controlled study in approximately 700 patients with early NASH cirrhosis to allow for noninvasive monitoring of progression to liver decompensation events. A positive outcome is expected to support the full approval of resmetirom for noncirrhotic NASH, potentially accelerating the timeline to full approval. In addition, this study has the potential to support an additional indication for resmetirom in patients with well-compensated NASH cirrhosis.

About NASH

Nonalcoholic steatohepatitis (NASH) is a more advanced form of nonalcoholic fatty liver disease (NAFLD). NAFLD is estimated to afflict more than 20% of adults globally, about 30% in the United States. Of that population, 20% may have NASH.

NASH is a leading cause of liver related mortality and an increasing burden on healthcare systems globally. Additionally, patients with NASH, especially those with more advanced metabolic risk factors (hypertension, concomitant type 2 diabetes), are at increased risk for adverse cardiovascular events and increased morbidity and mortality.

Once NASH progresses to significant liver fibrosis (stages F2 and F3) the risk of adverse liver outcomes increases dramatically. NASH is rapidly becoming the leading cause of liver transplantation in the U.S. There are currently no FDA-approved therapies available for the treatment of NASH.

Shattuck Labs Reports Fourth-Quarter and Full-Year 2022 Financial Results and Provides Business Updates

On February 23, 2023 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, reported financial results for the fourth quarter and full year ended December 31, 2022 and provided recent business highlights (Press release, Shattuck Labs, FEB 23, 2023, View Source [SID1234627630]).

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"During the fourth quarter of 2022, we continued to focus on clinical execution to position ourselves for key clinical data readouts for SL-172154 in 2023. Enrollment in our AML/HR-MDS clinical trial of SL-172154 is moving along nicely, and, in the fourth quarter, we advanced into the first combination cohort with azacitidine. This keeps us on track to share initial data from the dose-escalation portion of this trial from relapsed/refractory AML/HR-MDS patients both as monotherapy and in combination with azacitidine in the first half of 2023. As it relates to our trials in platinum-resistant ovarian cancer, in early 2022 we established a collaboration with ImmunoGen to combine SL-172154 with mirvetuximab soravtansine and, in the fourth quarter, we initiated enrollment in this Phase 1B clinical trial. We expect initial data from the combination trial with SL-172154 and liposomal doxorubicin midyear 2023, and we expect initial data from the combination trial of SL-172154 and mirvetuximab soravtansine in the second half of 2023," said Taylor Schreiber, M.D., Ph.D., and Chief Executive Officer of Shattuck. "I am also very pleased to announce the promotion of Dr. George Fromm to CSO of the ARC platform and Dr. Suresh de Silva to CSO of the GADLEN platform. We look forward to benefiting from the expertise of these scientific program leaders as we continue our momentum in 2023. Drs. Fromm and de Silva have been invaluable to Shattuck from the time they each joined the company in 2017, and they will continue to play a critical role as we build-out our pipeline over the coming years. 2023 is an important year for Shattuck, with multiple data readouts, which we believe will establish SL-172154 as both a differentiated CD47 inhibitor and a CD40 agonist capable of activating the CD40 pathway in human cancer patients. We expect that these data will position Shattuck well for continued growth in the years ahead."
"After enrolling patients in the final dose levels of 12 and 24 mg/kg with the SL-279252 clinical program, and not meeting a stringent efficacy threshold required to justify further development, we have decided to discontinue development of SL-279252. The development program for SL-279252 has yielded tremendously important preclinical, translational, and clinical data for the ARC platform, and we thank the patients and their families for participating in our clinical trial. We remain focused on delivering novel therapeutics that benefit patients with cancer with high unmet need and look forward to the combination data in both of our ongoing clinical trials with SL-172154 in the coming quarters," continued Dr. Schreiber.
Clinical Milestones Expected in 2023
ARC Platform
SL-172154 (SIRPα-Fc-CD40L)
•Complete data from Phase 1A dose-escalation clinical trial of SL-172154 as monotherapy in platinum-resistant ovarian cancer expected midyear 2023

•Initial data from Phase 1B clinical trial of SL-172154 in combination with liposomal doxorubicin in platinum-resistant ovarian cancer expected midyear 2023
•Initial dose-escalation data, as monotherapy and in combination with azacitidine, for Phase 1A/B clinical trial of SL-172154 in relapsed/refractory AML and HR-MDS expected in the first half of 2023
•Complete dose-escalation data, as monotherapy and in combination with azacitidine, for Phase 1A/B clinical trial of SL-172154 in AML and HR-MDS and initial dose-expansion cohort data with SL-172154 in combination with azacitidine in frontline TP53 mutant AML and HR-MDS expected in the second half of 2023
•Initial data from Phase 1B clinical trial of SL-172154 in combination with mirvetuximab soravtansine in platinum-resistant ovarian cancer expected in the second half of 2023
GADLEN Platform
GADLEN Preclinical Compounds
•Additional detail and further program guidance regarding the advancement of potential product candidates from the GADLEN platform expected in 2023
Fourth Quarter 2022 Recent Business Highlights and Other Recent Developments
ARC Clinical-Stage Pipeline
SL-172154 (SIRPα-Fc-CD40L)
•Completed Phase 1A Monotherapy Dose-Escalation Clinical Trial of SL-172154 in Platinum-Resistant Ovarian Cancer: This open-label, multi-center, dose-escalation clinical trial evaluated the safety, tolerability, pharmacokinetics, anti-tumor activity, and pharmacodynamic effects of SL-172154 administered intravenously in patients with advanced platinum-resistant ovarian cancer. We reached a maximum administered dose of 10.0 mg/kg and expect to present complete dose-escalation data from the trial midyear 2023.
•Dosed First Patients in First Combination Cohort with Azacitidine in Ongoing Phase 1A/B Clinical Trial in AML and HR-MDS: This trial is evaluating the safety, tolerability, pharmacokinetics, anti-tumor activity, and pharmacodynamic effects of SL-172154 as both monotherapy and in combination. In AML, SL-172154 may be evaluated in combination with azacitidine and venetoclax. In both HR-MDS and TP53 mutant AML, SL-172154 may be evaluated in combination with azacitidine. Patients have been dosed in both the monotherapy and combination dose-escalation cohorts of this trial and enrollment is ongoing. Dose escalation will continue in a parallel staggered manner, and initial dose-escalation data, as monotherapy and in combination with azacitidine, are expected in the first half of 2023.
•Enrollment Progressing in Phase 1B Clinical Trial of SL-172154 in Combination with Liposomal Doxorubicin in Advanced Platinum-Resistant Ovarian Cancer: Enrollment is continuing in this trial, which is evaluating the safety, tolerability, pharmacokinetics, anti-tumor activity, and pharmacodynamic effects of SL-172154, using the selected dose of 3.0 mg/kg, in combination with liposomal doxorubicin in patients with advanced platinum-resistant ovarian cancer. We expect to present initial data from this trial in combination with liposomal doxorubicin midyear 2023.
•Initiated Enrollment in Phase 1B Clinical Trial of SL-172154 in Combination with Mirvetuximab Soravtansine in Advanced Platinum-Resistant Ovarian Cancer. This trial is evaluating the safety, pharmacokinetics, pharmacodynamic effects, and preliminary anti-tumor activity of SL-172154 administered in combination with mirvetuximab soravtansine in subjects with platinum-resistant ovarian, primary peritoneal, or fallopian tube cancers. Mirvetuximab soravtansine is an antibody-drug conjugate targeting folate receptor alpha, or FRα, which provides for both direct tumor cell killing as well as enhanced macrophage phagocytosis through binding with Fc gamma receptors and has received accelerated approval for platinum-resistant ovarian cancer patients whose tumors are shown to be FRα positive, defined as ≥75%, as determined by the VENTANA FOLR1 (FOLR1-2.1) Assay, using the PS2+ scoring method. Pre-clinical studies have shown that both of these killing mechanisms are complementary to the mechanism

of SL-172154 by enhancing the activity of macrophages to phagocytose FRα- expressing ovarian cancer cells, and that SL-172154 may broaden the activity of mirvetuximab soravtansine, particularly in patients with tumors that express lower levels of FRα. We intend to enroll patients with broader FRα expression, including those with "high" (greater than ≥75% of tumor cells staining with 2+ intensity), "medium" (≥50% to <75% of tumor cells staining with 2+ intensity) , and "low" (≥25% to <50% of tumor cells staining with 2+ intensity) expression of FRα, as determined by the VENTANA FOLR1 (FOLR1-2.1) Assay, using the PS2+ scoring method. We expect to present initial data from this trial in combination with mirvetuximab soravtansine in the second half of 2023.
SL-279252 (PD1-Fc-OX40L)
•Completed Phase 1 Dose Escalation Clinical Trial of SL-279252 in Advanced Solid Tumors and Announces Discontinuation of Clinical Development of the SL-279252 Program: In the fourth quarter of 2021, we reported initial data from this trial demonstrating evidence of initial anti-tumor activity and dose-dependent pharmacodynamic activity. As previously stated, our internal benchmark for continued program development of SL-279252 was response rates equal or exceeding 20% in the 12 and 24 mg/kg cohorts. We did not observe an overall response rate necessary to justify continued development in a very difficult PD-1 relapsed/refractory patient population, and we are announcing the discontinuation of clinical development of SL-279252.
Gamma Delta T Cell Engager (GADLEN) Preclinical Pipeline
Preclinical Pipeline Development
•Announced two potential product candidates, currently in preclinical development, from the GADLEN platform—one targeting the CD20 antigen intended for development in autoimmune disease, and a second targeting the B7-H3 antigen for development in oncology: As Shattuck advances its preclinical pipeline, we anticipate further program guidance regarding the advancement of potential product candidates from the GADLEN platform in 2023.
Corporate Update
•Appointed CSOs for ARC and GADLEN Platforms: In January 2023, Dr. George Fromm was promoted to CSO of the ARC platform, and Dr. Suresh de Silva was promoted to CSO of the GADLEN platform. Dr. Fromm joined Shattuck Labs in 2017 and is one of its scientific co-founders. He previously served as Shattuck’s Vice President of R&D and co-led the preclinical development of SL-279252 and SL-172154 into clinical trials. Earlier, Dr. Fromm served as the Senior Director of Research and Development at Heat Biologics, Inc., where he directed the discovery and clinical-based research efforts for their phase I/II trials and co-invented a "next-generation" vaccine platform that combines a cell-based immunotherapy vaccine and a T cell costimulatory fusion protein in a single treatment. Dr. de Silva previously served as Shattuck’s Vice President of Product Development from 2018-2022 and as Shattuck’s Executive Director of Research and Development from 2017 to 2018. Dr. de Silva joined Shattuck in 2017 and is one of its scientific co-founders and co-led the preclinical development of SL-279252 and SL-172154. Prior to joining Shattuck, Dr. de Silva served as the Director of Research and Development at Heat Biologics, Inc. in Durham, NC, where he led external research collaborations and co-developed the ComPact cell-based vaccine platform.
Upcoming Events
•American Association for Cancer Research Annual Meeting (AACR) (Free AACR Whitepaper), April 14-19, 2023
▪Poster presentation on the preclinical development of GADLEN compounds
•Shattuck plans to attend the following investor conferences. Details of the presentations and webcasts will be announced prior to the events.
▪Cowen 43rd Annual Healthcare Conference, March 6-8, 2023
▪Oppenheimer 33rd Annual Healthcare Conference, March 13-15, 2023
▪Needham 22nd Annual Healthcare Conference, April 17-20, 2023

Fourth-Quarter and Full-Year 2022 Financial Results
•Cash Position: As of December 31, 2022, cash and cash equivalents and investments were $161.3 million, as compared to $268.8 million as of December 31, 2021.
•Research and Development (R&D) Expenses: R&D expenses for the quarter ended December 31, 2022 were $21.9 million, as compared to $16.2 million for the quarter ended December 31, 2021. R&D expenses for the year ended December 31, 2022 were $82.9 million, as compared to $56.6 million for the year ended December 31, 2021. This increase was primarily driven by increases in manufacturing of trial materials to support clinical development of our ongoing clinical trials, personnel-related costs, and lab supplies.
•General and Administrative (G&A) Expenses: G&A expenses for the quarter ended December 31, 2022 were $4.8 million, as compared to $4.6 million for the quarter ended December 31, 2021. General and administrative expenses for the year ended December 31, 2022 were $21.1 million, as compared to $18.7 million for the year ended December 31, 2021. This increase was primarily driven by a litigation settlement of $1.4 million and increases in personnel-related and other operating costs.
•Net Loss: Net loss was $25.4 million for the quarter ended December 31, 2022, or $0.60 per basic and diluted share, as compared to a net income of $7.8 million for the quarter ended December 31, 2021, or $0.19 per basic share and $0.18 per diluted share. Net loss for the year ended December 31, 2022 was $101.9 million, or $2.41 per basic and diluted share, as compared to $45.0 million, or $1.07 per basic and diluted share, for the year ended December 31, 2021.
2023 Financial Guidance
Shattuck believes its cash and cash equivalents and investments will be sufficient to fund its operations into the second half of 2024, beyond results from its Phase 1 clinical trials of SL-172154. This cash runway guidance is based on the Company’s current operational plans and excludes any additional capital that may be received, proceeds from business development transactions, and/or additional costs associated with clinical development activities that may be undertaken.
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 cancer. Multiple Phase 1 clinical trials are ongoing for patients with advanced platinum-resistant ovarian cancer (NCT05483933) and patients with AML and HR-MDS (NCT05275439).

Selecta Biosciences to Host Conference Call and Webcast to Discuss Fourth Quarter and Full-Year 2022 Financial Results and Provide Business Update

On February 23, 2023 Selecta Biosciences, Inc. (NASDAQ: SELB), a biotechnology company leveraging its clinically validated ImmTOR platform to develop tolerogenic therapies for autoimmune diseases and gene therapies, reported that it plans to host a conference call on Thursday, March 2, 2023, at 8:30 a.m. ET to discuss its financial results for the quarter and full-year ended December 31, 2022 and provide a business update (Press release, Selecta Biosciences, FEB 23, 2023, https://selectabio.gcs-web.com/news-releases/news-release-details/selecta-biosciences-host-conference-call-and-webcast-discuss-11 [SID1234627628]).

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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 8768458. 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.