On August 13, 2024 SELLAS Life Sciences Group, Inc. (NASDAQ: SLS) ("SELLAS’’ or the "Company"), a late-stage clinical biopharmaceutical company focused on the development of novel therapies for a broad range of cancer indications, reported financial results for the second quarter ended June 30, 2024, and provided a corporate update (Press release, Sellas Life Sciences, AUG 13, 2024, View Source [SID1234645822]).

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"We are pleased with our second-quarter performance marked by significant advancements in our development efforts and clinical programs," said Angelos Stergiou, MD, ScD h.c., President and Chief Executive Officer of SELLAS. "The initial Phase 2a dataset from the SLS009 trial in AML showed early signs of treatment efficacy across all cohorts exceeding the targeted ORR of at least 20% and median overall survival (mOS) of more than 3 months. We observed remarkable responses in patients with ASXL1 mutations and expanded the trial to include two cohorts of patients with ASXL1 and myelodysplasia-related changes other than ASXL1. As SLS009 continues to show promise as a treatment for hematologic malignancies, its potential has been recently recognized by the European Medicines Agency (EMA) with the orphan drug designations for AML and peripheral T-cell lymphomas (PTCL) and FDA with two rare pediatric disease designations for pediatric AML and acute lymphoblastic leukemia (ALL). Furthermore, our recent $21 million capital raise strengthens our financial position and provides sufficient resources to reach several meaningful data readouts."

Dr. Stergiou continued: "As for our Phase 3 REGAL study of galinpepimut-S (GPS) in AML, we were pleased to report that based on recent efficacy and safety assessment, the IDMC has recommended trial continuation without modifications. The committee projects that the 60 events will occur by the fourth quarter which will trigger the interim analysis. We remain confident in the positive trajectory of both GPS and SLS009 and we look forward to the interim results from the Phase 3 REGAL study, as well as additional data from the Phase 2 trial of SLS009 in AML."

Pipeline Highlights
Galinpepimut-S (GPS): Wilms Tumor-1 (WT1) targeting immunotherapeutic

Phase 3 REGAL study in AML: The IDMC conducted a prespecified risk-benefit assessment of unblinded data from the study in June and has recommended that the trial continue without modifications. Based on a detailed analysis of all unblinded data, the IDMC projects that the interim analysis (60 events) will occur by the fourth quarter of 2024.

SLS009: highly selective and specific CDK9 inhibitor

Completed Enrollment in Phase 2a Trial of SLS009 in r/r AML: 30 patients relapsed after or refractory to venetoclax-based regiments were enrolled ahead of schedule in 5 centers across the US. Except for one, all patients in this Phase 2a trial had adverse risk AML (97%) and were treated with continued venetoclax–azacytidine combination therapy after having failed it or similar venetoclax-based combinations, often more than once. The expected overall survival in those patients is approximately 2.5 months.

Announced Positive Initial Phase 2 Data of SLS009 in r/r AML: The preliminary data showed the overall response rate (ORR) of 33% and 50% in 60 mg QW and 30 mg BIW cohorts, respectively. The ORR in patients with ASXL1 mutation in the 30 mg BIW reached a remarkable 100% to date. In the safety dose of 45 mg QW, the median overall survival (mOS) was 5.4 months vs 2.5 months with standard of care. The mOS in 60 mg QW and 30 mg BIW has not been reached yet. SLS009 was well-tolerated across all doses.

Additional Phase 2 Cohorts in Venetoclax Combinations in r/r AML Opened for Enrollment: Development of SLS009 continued with the opening of two new cohorts – AML with myelodysplasia-related changes (AML MRC) with ASXL1 mutations and AML with myelodysplasia related changes other than ASXL1 mutations. These new cohorts are also open for enrollment of certain pediatric patients.

National Institute of Health PIVOT program in Pediatric Tumors: The program in multiple pediatric cancer indications continues in collaboration with the National Cancer Institute (NCI). Initial safety and efficacy data are expected to be reported throughout 2H 2024.

Recently Granted Regulatory Designations for SLS009: The FDA granted Rare Pediatric Disease Designation (RPDD) to SLS009 for the treatment of pediatric ALL in June 2024 and the FDA granted RPDD to SLS009 for the treatment of pediatric AML in July 2024. Also, the EMA granted Orphan Drug Designation for SLS009 in AML and in PTCL in June 2024 and July 2024, respectively. The FDA previously granted SLS009 Orphan Drug Designations in AML and PTCL and Fast Track designations for r/r AML and r/r PTCL.

Financial Results for the Second Quarter 2024:

R&D Expenses: Research and development expenses for the quarter ended June 30, 2024 were $5.2 million, compared to $5.9 million for the same period in 2023. Research and development expenses in the first half of 2024 were $10.3 million, compared to $13.1 million for the same period in 2023. The decrease was primarily due to decreases in consultants, personnel-related expenses due to changes in headcount, and clinical trial expenses.

G&A Expenses: General and administrative expenses for the second quarter of 2024 were $2.4 million, compared to $3.1 million for the same period in 2023. General and administrative expenses in the first half of 2024 were $7.0 million, compared to $7.2 million for the same period in 2023. The decrease was primarily attributed to personnel-related expenses due to changes in headcount and outside services and public company costs.

Net Loss: The net loss was $7.5 million for the second quarter of 2024, or a basic and diluted loss per share of $0.13, as compared to a net loss of $8.8 million for the second quarter of 2023, or a basic and diluted loss per share of $0.31. The net loss was $17.0 million for the first half of 2024, or a basic and diluted loss per share of $0.33, as compared to a net loss of $19.9 million for the first half of 2023, or a basic and diluted loss per share of $0.77.

Cash Position: As of June 30, 2024, cash and cash equivalents totaled approximately $9.1 million. Subsequent to June 30, 2024, the Company consummated a registered direct offering priced at a premium to market, providing gross proceeds to the Company of $21 million, before deducting placement agent fees and related offering expenses.

On August 13, 2024 Genprex inc. ("Genprex" or the "Company") (NASDAQ: GNPX), a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, reported that the Singapore Patent Office has granted a patent to Genprex that covers the use of the Company’s lead drug candidate, Reqorsa Gene Therapy, in combination with anti-PD-1 antibodies through 2037 (Press release, Genprex, AUG 13, 2024, View Source [SID1234645806]).

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This patent expands on the previously granted patents in the U.S., Japan, Mexico, Russia, Australia, Chile, China and Korea to cover the use of REQORSA in combination with an immune checkpoint inhibitor, i.e., PD-1 antibodies. The granted Korean patent also claims the use of REQORSA in combination with PD-L1 antibodies. Genprex will be pursuing additional patent applications with claims to combinations of REQORSA and PD-L1 antibodies in the US, Brazil, Canada, China, Europe and Israel. Should these applications grant, they would be applicable to Genprex’s Acclaim-3 clinical trial.

PD-1 inhibitors and PD-L1 inhibitors are a type of targeted immunotherapy and a part of a group of checkpoint inhibitor anti-cancer drugs that block the activity of PD-1 and PDL1 immune checkpoint proteins present on the surface of cells.

"This patent expands our intellectual property portfolio, providing us with additional protection and exclusivity for our drug combinations with REQORSA and furthering our patent protection in the Asian markets where lung cancer is the most prevalent," said Thomas Gallagher, Esq., Senior Vice President of Intellectual Property and Licensing at Genprex.

According to GLOBOCAN, in 2022 Asia accounted for 63% of new lung cancer cases worldwide, which is equal to more than 1.5 million new cases of lung cancer per year. In 2022, China alone had more than 1 million new cases of lung cancer.

The Acclaim-3 study is a Phase 1/2 clinical trial that uses a combination of REQORSA and Genentech’s Tecentriq as maintenance therapy for patients with extensive stage small cell lung cancer (ES-SCLC) who developed tumor progression after receiving Tecentriq and chemotherapy as initial standard treatment. The Acclaim-3 clinical trial has received U.S. Food and Drug Administration (FDA) Fast Track Designation for this patient population, and Acclaim-3 has received FDA Orphan Drug Designation.

On August 13, 2024 UroGen Pharma Ltd. (Nasdaq: URGN), a biotech company dedicated to developing and commercializing innovative solutions that treat urothelial and specialty cancers, reported financial results for the second quarter ended June 30, 2024, and provided an overview of recent developments (Press release, UroGen Pharma, AUG 13, 2024, View Source [SID1234645823]).

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"Our immediate priority is completing the submission of a New Drug Application in the very near term for UGN-102, which we believe has the potential to be a practice-changing therapy for the treatment of low-grade intermediate-risk non-muscle invasive bladder cancer," said Liz Barrett, President and Chief Executive Officer of UroGen. "The compelling body of clinical data, including the ENVISION trial, which demonstrated an unprecedented 82.3% 12-month duration of response by Kaplan-Meier analysis in patients who had previously achieved a complete response at three months, reinforces the opportunity for UGN-102 to be the first FDA-approved medicine for the treatment of low-grade intermediate-risk non-muscle invasive bladder cancer."

Ms. Barrett continued, "We estimate that approximately 82,000 patients suffering from this highly recurrent disease each year may benefit from an innovative treatment, creating an estimated five-billion-dollar market opportunity. Our immediate commercial focus is preparing for UGN-102’s potential approval and launch with the goal to establish our leadership in urothelial cancers."

Q2 2024 and Recent Business Highlights:

UGN-102 (mitomycin) for intravesical solution:

In June 2024, UroGen reported positive 12-month duration of response (DOR) data from the Phase 3 ENVISION pivotal trial evaluating UGN-102 (mitomycin) for intravesical solution in patients with low-grade intermediate-risk non-muscle invasive bladder cancer (LG-IR-NMIBC). The 12-month DOR was 82.3% (95% CI, 75.9%, 87.1%) by Kaplan-Meier estimate in patients who had achieved complete response (CR) at three months from the first instillation of investigational drug UGN-102. The ENVISION trial previously met its primary endpoint by demonstrating that patients treated with UGN-102 had a 79.6% (95% CI, 73.9%, 84.5%) CR rate at three months following the first instillation of UGN-102. UGN-102 was well tolerated, with a safety profile that was consistent with previous clinical trials.
The ENVISION 12-month DOR data were presented in a virtual event "New Horizons in Bladder Cancer" hosted by UroGen on June 13. This event included presentations by company management and several key opinion leaders with expertise in urology. There was also a panel discussion on the treatment of LG-IR-NMIBC and insights from a patient from the ENVISION trial. A replay of the event can be accessed here.
The latest DOR data is expected to support a New Drug Application (NDA) for UGN-102 as a treatment for LG-IR-NMIBC, which the Company plans to complete in the very near term. There is potential for an FDA decision as early as the first quarter of 2025, assuming the FDA grants priority review. UroGen initiated submission of the rolling NDA for UGN-102 in January 2024.
JELMYTO (mitomycin) for pyelocalyceal solution in low-grade upper tract urothelial cancer (LG-UTUC):

Generated net product revenue of $21.8 million in the second quarter of 2024, compared to $21.1 million in the second quarter of 2023.
JELMYTO was featured in three presentations at the AUA 2024 Annual Meeting. Independent long-term, real-world analyses explored use of the product in broad patient types, and with different methods of administration. The results showed that JELMYTO treatment appears to demonstrate favorable recurrence-free survival rates for patients with LG-UTUC who respond to initial induction. There does not appear to be a recurrence difference according to the intent of JELMYTO induction, original tumor size, multifocality or tumor location.
Next-generation novel mitomycin-based formulation for urothelial cancers

UroGen is developing UGN-103 and UGN-104, next-generation novel mitomycin-based formulations for UGN-102 and JELMYTO, respectively. These candidates combine UroGen’s RTGel technology with a novel mitomycin formulation licensed from medac GmbH in an agreement signed in January 2024. The development programs potentially offer both manufacturing efficiencies and additional intellectual property protection for the Company’s low-grade urothelial cancer franchise.
In April 2024, the U.S. FDA accepted the Company’s Investigational New Drug (IND) application for UGN-103. If approved, UGN-103 is expected to provide several advantages related to production, cost, supply, and product convenience.
UroGen has initiated the Phase 3 study and has onboarded three clinical sites to explore the safety and efficacy of UGN-103 in LG-IR-NMIBC. UroGen plans to initiate a Phase 3 study of UGN-104 in LG-UTUC early next year.
Corporate

In June 2024, UroGen appointed David Lin as Chief Commercial Officer and member of the Executive Leadership Team. Mr. Lin is spearheading UroGen’s commercial strategy and will be leveraging his extensive experience to prepare for the potential launch of UGN-102, if approved.
Public offering of ordinary shares and pre-funded warrants

In June 2024, the Company completed an underwritten public offering of 5,000,000 ordinary shares at a price to the public of $17.50 per ordinary share, and, to certain investors in lieu of issuing ordinary shares, pre-funded warrants to purchase 1,142,857 ordinary shares at a purchase price of $17.499 per pre-funded warrant, which equals the public offering price per ordinary share less the $0.001 per share exercise price for each pre-funded warrant. Gross proceeds to UroGen from the offering, before deducting underwriting discounts and commissions and estimated offering expenses, were approximately $107.5 million.
In July 2024 the underwriters exercised their option to purchase the full 921,428 additional shares. This yielded further gross proceeds to the Company of $16.1 million, before deducting underwriting discounts and commissions and estimated offering expenses.
Second quarter 2024 financial results

JELMYTO Revenue: JELMYTO net product revenues were $21.8 million and $21.1 million for the three months ended June 30, 2024, and 2023, respectively.

R&D Expense: Research and development expenses for the second quarter of 2024 were $15.4 million, including non-cash share-based compensation expense of $0.6 million as compared to $11.6 million, including non-cash share-based compensation expense of $0.5 million, for the same period in 2023.

SG&A Expense: Selling, general and administrative expenses for the second quarter of 2024 were $30.1 million, including non-cash share-based compensation expense of $3.0 million. This compares to $22.5 million, including non-cash share-based compensation expense of $1.7 million, for the same period in 2023.

Financing on Prepaid Forward Obligation: UroGen reported non-cash financing expense related to the prepaid forward obligation to RTW Investments of $5.8 million in the second quarter of 2024, compared to $5.3 million in the same period in 2023.

Interest Expense on Long-Term Debt: Interest expense related to the up to $200 million term loan facility with funds managed by Pharmakon Advisors was $3.5 million in the second quarter of 2024, compared to $3.8 million in the same period in 2023.

Net Loss: UroGen reported a net loss of $33.4 million or ($0.91) per basic and diluted share in the second quarter of 2024 compared with a net loss of $24.1 million or ($1.03) per basic and diluted share in the same period in 2023.

Cash & Cash Equivalents: As of June 30, 2024, cash, cash equivalents and marketable securities totaled $241.3 million.

2024 Revenue, Operating Expense, and RTW Expense Guidance: With respect to the Company’s previously provided full-year 2024 JELMYTO revenue guidance, the Company sees a path toward the lower end of the guidance range. With respect to the Company’s previously provided full-year 2024 operating expense guidance, the Company expects to be toward the higher end of the guidance range, with a revised non-cash share-based compensation expense of $9 to $13 million, subject to market conditions. The anticipated full year 2024 non-cash financing expense related to the prepaid obligation to RTW Investments is unchanged and expected to be in the range of $21 to $26 million. The rate for the cash component of the RTW obligation will be 13% of global net product sales of JELMYTO in 2024.

Conference Call & Webcast Information: Members of UroGen’s management team will host a live conference call and webcast today at 10:00 AM Eastern Time to review UroGen’s financial results and provide a general business update.

The live webcast can be accessed by visiting the Investors section of the Company’s website at View Source Please connect at least 15 minutes prior to the live webcast to ensure adequate time for any software download that may be needed to access the webcast.

About JELMYTO

JELMYTO (mitomycin) for pyelocalyceal solution is a mitomycin-containing reverse thermal gel containing 4 mg mitomycin per mL gel indicated for the treatment of adult patients with LG-UTUC. It is recommended for primary treatment of biopsy-proven LG-UTUC in patients deemed appropriate candidates for renal-sparing therapy. JELMYTO is a viscous liquid when cooled and becomes a semi-solid gel at body temperature. The drug slowly dissolves over four to six hours after instillation and is removed from the urinary tract by normal urine flow and voiding. It is approved for administration in a retrograde manner via ureteral catheter or antegrade through nephrostomy tube. The delivery system allows the initial liquid to coat and conform to the upper urinary tract anatomy. The eventual semisolid gel allows for chemoablative therapy to remain in the collecting system for four to six hours without immediately being diluted or washed away by urine flow.

APPROVED USE FOR JELMYTO

JELMYTO is a prescription medicine used to treat adults with a type of cancer of the lining of the upper urinary tract including the kidney called low-grade Upper Tract Urothelial Cancer (LG-UTUC).

IMPORTANT SAFETY INFORMATION

You should not receive JELMYTO if you have a hole or tear (perforation) of your bladder or upper urinary tract.

Before receiving JELMYTO, tell your healthcare provider about all your medical conditions, including if you:

are pregnant or plan to become pregnant. JELMYTO can harm your unborn baby. You should not become pregnant during treatment with JELMYTO. Tell your healthcare provider right away if you become pregnant or think you may be pregnant during treatment with JELMYTO. Females who are able to become pregnant: You should use effective birth control (contraception) during treatment with JELMYTO and for 6 months after the last dose. Males being treated with JELMYTO: If you have a female partner who is able to become pregnant, you should use effective birth control (contraception) during treatment with JELMYTO and for 3 months after the last dose.
are breastfeeding or plan to breastfeed. It is not known if JELMYTO passes into your breast milk. Do not breastfeed during treatment with JELMYTO and for 1 week after the last dose.
Tell your healthcare provider if you take water pills (diuretic).
How will I receive JELMYTO?

Your healthcare provider will tell you to take a medicine called sodium bicarbonate before each JELMYTO treatment.
You will receive your JELMYTO dose from your healthcare provider 1 time a week for 6 weeks. It is important that you receive all 6 doses of JELMYTO according to your healthcare provider’s instructions. If you miss any appointments, call your healthcare provider as soon as possible to reschedule your appointment. Your healthcare provider may recommend up to an additional 11 monthly doses.
JELMYTO is given to your kidney through a tube called a catheter.
During treatment with JELMYTO, your healthcare provider may tell you to take additional medicines or change how you take your current medicines.
After receiving JELMYTO:

JELMYTO may cause your urine color to change to a violet to blue color. Avoid contact between your skin and urine for at least 6 hours.
To urinate, males and females should sit on a toilet and flush the toilet several times after you use it. After going to the bathroom, wash your hands, your inner thighs, and genital area well with soap and water.
Clothing that comes in contact with urine should be washed right away and washed separately from other clothing.
JELMYTO may cause serious side effects, including:

Swelling and narrowing of the tube that carries urine from the kidney to the bladder (ureteric obstruction). If you develop swelling and narrowing, and to protect your kidney from damage, your healthcare provider may recommend the placement of a small plastic tube (stent) in the ureter to help the kidney drain. Tell your healthcare provider right away if you develop side pain or fever during treatment with JELMYTO.
Bone marrow problems. JELMYTO can affect your bone marrow and can cause a decrease in your white blood cell, red blood cell, and platelet counts. Your healthcare provider will do blood tests prior to each treatment to check your blood cell counts during treatment with JELMYTO. Your healthcare provider may need to temporarily or permanently stop JELMYTO if you develop bone marrow problems during treatment with JELMYTO.
The most common side effects of JELMYTO include: urinary tract infection, blood in your urine, side pain, nausea, trouble with urination, kidney problems, vomiting, tiredness, stomach (abdomen) pain.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1‑800‑FDA‑1088. You may also report side effects to UroGen Pharma at 1-855-987-6436.

Please see JELMYTO Full Prescribing Information, including the Patient Information, for additional information.

About Upper Tract Urothelial Cancer (UTUC)

Urothelial cancer is the ninth most common cancer globally and the eighth most lethal neoplasm in men in the U.S. Between five percent and ten percent of primary urothelial cancers originate in the ureter or renal pelvis and are collectively referred to as upper tract urothelial cancers (UTUC). In the U.S., there are approximately 6,000 – 7,000 new or recurrent low-grade UTUC patients annually. Most cases are diagnosed in patients over 70 years old, and these older patients often face comorbidities. There are limited treatment options for UTUC, with the most common being endoscopic surgery or nephroureterectomy (removal of the entire kidney and ureter). These treatments can lead to a high rate of recurrence and relapse.

About UGN-102

UGN-102 (mitomycin) for intravesical solution is an innovative drug formulation of mitomycin, currently in Phase 3 development for the treatment of LG-IR-NMIBC. Utilizing UroGen’s proprietary RTGel technology, a sustained release, hydrogel-based formulation, UGN-102 is designed to enable longer exposure of bladder tissue to mitomycin, thereby enabling the treatment of tumors by non-surgical means. UGN-102 is delivered to patients using a standard urinary catheter in an outpatient setting by a trained healthcare professional. UroGen anticipates completing its NDA submission for UGN-102 in the very near term with a potential FDA decision as early as the first quarter of 2025, assuming priority review.

On August 13, 2024 AN2 Therapeutics, Inc. (Nasdaq: ANTX), a biopharmaceutical company focused on discovering and developing novel small molecule therapeutics derived from its boron chemistry platform, reported financial results for the quarter ended June 30, 2024 (Press release, AN2 Therapeutics, AUG 13, 2024, View Source [SID1234646195]).

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"We reported results from the EBO-301 Phase 2/3 study in patients with treatment-refractory MAC lung disease last week and over the coming months will further analyze the data to determine next steps in NTM lung disease," said Eric Easom, Co-Founder, Chairman, President and CEO. "Despite this setback, we remain well positioned as a company – we have a boron chemistry platform with two development programs that are expected to advance into clinical trials in 2025. AN2-502998 is expected to enter Phase 1 with an aim to cure chronic Chagas disease, a potentially life-threatening illness that causes severe cardiac disease and where there are limited to no treatment options. We also plan to initiate a Phase 2 trial with epetraborole for the treatment of melioidosis, a deadly bacterial infection and global bioterrorism threat. Additionally, we have a pipeline of internally developed boron-based compounds in research targeting high unmet needs in infectious disease and oncology and we have the financial runway to allow us to achieve multiple inflection points over the next three years."

Second Quarter & Recent Business Updates:

Termination of Epetraborole Pivotal Phase 2/3 Clinical Study in TR-MAC Lung Disease
AN2 recently announced topline results from the Phase 2 part of the EBO-301 Phase 2/3 study evaluating epetraborole on top of an optimized background regimen in treatment-refractory MAC lung disease. The Phase 2 part of the study met its primary objective of demonstrating the potential validation of a novel patient-reported outcome (PRO) tool and a higher PRO-based clinical response rate in the epetraborole + OBR arm vs. placebo + OBR. However, sputum culture conversion at Month 6, a key secondary endpoint, was similar between treatment arms. Based on the topline data, the Company has terminated the Phase 2 and Phase 3 parts of the EBO-301 trial. Oral epetraborole 500 mg daily was generally well-tolerated and the study was not terminated due to safety concerns. The Company plans to further analyze the EBO-301 data to better understand the results and their impact on the ongoing development of epetraborole for nontuberculous mycobacteria (NTM) lung disease.

Published New Epetraborole Data in Antimicrobial Agents in Chemotherapy
In July, the company published a study in the journal Antimicrobial Agents in Chemotherapy, which highlighted the efficacy of epetraborole against M. abscessus in a mouse lung infection model. The study suggests that epetraborole could become an important therapy to address the high unmet need for effective oral treatment options for M. abscessus lung disease.

Selected Second Quarter Financial Results

Research and Development (R&D) Expenses: R&D expenses for the second quarter of 2024 were $12.1 million compared to $13.5 million for the same period during 2023 due to decreased chemistry manufacturing and controls activity and decreased expenses for completed Phase 1 clinical trials, partially offset by increased Phase 2/3 clinical trial costs, increased consulting and outside service costs and increased personnel-related expenses.
General and Administrative (G&A) Expenses: G&A expenses for the second quarter of 2024 were $3.7 million compared to $3.1 million for the same period during 2023 due to an increase in personnel-related expenses and professional and outside services.
Other Income, Net: Other income, net for the second quarter of 2024 was $1.4 million compared to $0.8 million for the same period during 2023 due to increased interest income based on higher interest rates and higher cash, cash equivalents and investment balances.
Net loss: Net loss for the second quarter of 2024 was $14.4 million, compared to $15.8 million for the same period during 2023.
Cash Position: The Company had cash, cash equivalents, and investments of $104.5 million at June 30, 2024, which is expected to fund operations through 2027.

On August 13, 2024 Gritstone bio, Inc. (Nasdaq: GRTS), a clinical-stage biotechnology company working to develop the world’s most potent vaccines, reported financial results for the second quarter ended June 30, 2024 and provided recent corporate and clinical updates (Press release, Gritstone Bio, AUG 13, 2024, View Source [SID1234645807]).

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"This is an exciting time for Gritstone, as we are on the cusp of unlocking important data about our promising new therapeutic modality in front-line metastatic microsatellite-stable colorectal cancer (MSS-CRC)," said Andrew Allen, MD, PhD, Co-founder, President & CEO of Gritstone bio. "Up to 95% of patients with metastatic CRC, the second most common cause of cancer death, are MSS. Delivering a new treatment option to these patients, who do not benefit from today’s immunotherapies, would be transformative. The emerging progression-free survival (PFS) benefit we reported in April is highly encouraging, especially in this tough to treat patient population. We have waited for these clinical data to mature and look forward to sharing the updated dataset next month. If we continue to see evidence of a clinical benefit with GRANITE, as measured by PFS, we believe new hope can be brought to patients who have not been helped by immune checkpoint blockade."

Dr. Allen added, "Along with advancing GRANITE in CRC, our team continues to innovate across our programs, reinforcing the potential of our underlying technologies. Our recent AACR (Free AACR Whitepaper) presentation highlights the unique power of EDGE, our proprietary neoantigen identification platform that underpins all our programs. Our recent presentation at ESCMID showcases the ability of our self-amplifying mRNA vector (samRNA) to induce long-lasting immune responses. Gritstone remains uniquely positioned to deliver on the promise of next-generation vaccine technologies to prevent, treat and eradicate disease."

Corporate Updates

In April 2024, Gritstone completed an underwritten public offering resulting in gross proceeds of $32.5 million.
In April 2024, Gritstone appointed Stephen Webster to its Board of Directors. A veteran finance executive with over 30 years in the biotechnology industry, Mr. Webster has held several key roles and been involved in multiple strategic transactions. Mr. Webster was the Chief Financial Officer of Spark Therapeutics from July 2014 until its acquisition by Roche for $4.3 billion in December 2019.
In July 2024, Gritstone bio engaged the Colorectal Cancer Alliance and the Paltown Development Foundation 501(c)(3), the fiduciary for Colontown.org, as part of its effort to educate and empower patients living with colorectal cancer and their caregivers.
In August 2024, Gritstone bio held a virtual KOL event to discuss the unmet need and potential role of GRANITE in metastatic microsatellite-stable colorectal cancer (MSS-CRC). The event featured J. Randolph Hecht, MD, Professor of Clinical Medicine and Director of the UCLA GI Oncology Program, and Howard Brown, CRC Survivor, Patient and Advocate. Details here.
Clinical Program Updates
Tumor-Specific Neoantigen Oncology Programs (GRANITE and SLATE)
GRANITE – Personalized neoantigen vaccine program
SLATE – "Off-the-shelf" neoantigen vaccine program

Preliminary results (reported April 1, 2024) from the ongoing randomized Phase 2 study suggest GRANITE could drive meaningful clinical benefit in front-line metastatic microsatellite-stable colorectal cancer (MSS-CRC). Gritstone expects to report mature progression-free survival (PFS) data in 3Q 2024.
Preliminary data, while immature, showed a trend of extended PFS in GRANITE-treated vs. control patients.
Hazard ratio of 0.82 (18% relative risk reduction of progression or death with GRANITE vs. control) in the overall population, where clinical data are less mature ([95% CI, 0.34-1.67]; 62% censored)
Hazard ratio of 0.52 (48% relative risk reduction of progression or death with GRANITE vs. control) in a fast-progressor, i.e. ‘high-risk’ group1, where clinical data are more mature ([95% CI, 0.15-1.38]; 44% censored). Too few events in the slow-progressor group at this early look to draw any efficacy conclusions.

1Fast-progressor subgroup defined as baseline ctDNA above the median value (2%) for the control group (ctDNA quantified as mean variant allele frequency [VAF] at time of study randomization).

Long-term circulating tumor DNA (ctDNA) data aligned with PFS trend and favored GRANITE vs. control patients
EDGE predicts HLA Class I presentation with >80% accuracy. In April 2024, Gritstone presented an update on the predictive performance of both HLA Class I and HLA Class II presentation at the 2024 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting in San Diego, CA. The findings further Gritstone’s belief that EDGE is leading the field in neoantigen prediction.

The clinical trial collaboration with the National Cancer Institute (NCI) to evaluate an autologous mutant KRAS-directed TCR-T cell therapy in combination with SLATE-KRAS, Gritstone’s KRAS-directed "off-the-shelf" vaccine candidate, is ongoing. The study is led by Steven A. Rosenberg, M.D., Ph.D., Chief of the Surgery Branch at the NCI’s Center for Cancer Research and builds into the growing interest in combining tumor-antigen specific cell therapy with matched vaccines.
Infectious Disease Programs
CORAL – Next-generation SARS-CoV-2 vaccine program that serves as proof-of-concept for Gritstone’s samRNA platform and novel approach in infectious diseases

Efforts to initiate a head-to-head Phase 2b study of Gritstone’s next-generation COVID-19 vaccine (the CORAL Phase 2b study) per the Biomedical Advanced Research and Development Authority (BARDA)2 contract continue. Gritstone will provide further updates as it is able.

Follow up data from the Phase 1 CORAL study highlight the durability and potential broad utility of Gritstone’s samRNA COVID-19 vaccine. In April 2024, Gritstone presented 12-month follow up data from the Phase 1 CORAL-CEPI at ESCMID 2024. The results reinforced previous findings showing induction of broad and durable immune responses through 12 months.
HIV – Collaboration with Gilead to research and develop vaccine-based HIV immunotherapy treatment

The collaboration with Gilead to research and develop a vaccine-based HIV immunotherapy treatment continues under Gilead’s direction.
Second Quarter 2024 Financial Results

Cash, cash equivalents, marketable securities and restricted cash were $61.7 million as of June 30, 2024, compared to $52.8 million as of March 31, 2024.
Research and development expenses were $20.8 million for the three months ended June 30, 2024, compared to $31.0 million for the three months ended June 30, 2023. The decrease of $10.2 million for the three months ended June 30, 2024, compared to the three months ended June 30, 2023 was primarily due to decreases of $3.2 million in personnel-related expenses, $3.2 million in laboratory supplies, $2.6 million in outside services, consisting primarily of clinical trial and other chemistry, manufacturing and controls related expenses and $1.2 million in facilities related costs.

General and administrative expenses were $7.7 million for the three months ended June 30, 2024, compared to $6.7 million for the three months ended June 30, 2023. The increase of $1.0 million was primarily attributable to increases of $0.9 million in personnel-related expenses, including a $0.5 million increase of non-cash stock-based compensation, and $0.1 million in facilities related costs.

Grant revenues were $0.9 million for the three months ended June 30, 2024. During the three months ended June 30, 2024, we recorded $0.9 million in grant revenue from CEPI.