Perspective Therapeutics and GT Medical Technologies Collaborate to Expand Access to Unique Cesium-131 Based Brain Cancer Treatment

On August 9, 2023 Perspective Therapeutics, Inc. ("Perspective" or "the Company") (NYSE AMERICAN: CATX), a precision oncology company developing alpha-particle therapies and complementary diagnostic imaging agents and an innovator in seed brachytherapy treatment options for multiple cancers, reported a collaborative initiative focused on increasing access to Cesium-131 brachytherapy for the treatment of certain brain cancers in the form of GT Medical Technologies, Inc.’s ("GT MedTech") GammaTile Therapy (Press release, GT Medical Technologies, AUG 9, 2023, View Source [SID1234634075]).

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"We are delighted to announce the expansion of our collaboration with GT MedTech to increase our manufacturing in support of their objective of bringing GammaTile Therapy to more patients with difficult to treat brain cancers," said Thijs Spoor, Chief Executive Officer of Perspective. "As the sole producer of Cesium-131 brachytherapy seeds, the therapeutic agent in GammaTile, we value our long-term partnership with GT MedTech and will increase seed production to allow them the capacity to address short notice orders with increased confidence."

GammaTile Therapy is a radiation treatment option implanted during the last five minutes of brain tumor resection surgery. It is composed of bioresorbable collagen tiles embedded with Cesium-131 radiation seeds supplied by Perspective Therapeutics. GammaTile delivers targeted Cesium-131 radiation to help prevent brain tumor cell regrowth in newly diagnosed and recurrent brain tumors, including glioblastomas, metastatic brain tumors, aggressive meningiomas, and other brain tumor types.

Matthew Likens, CEO of GT MedTech, commented, "We are thrilled that Perspective is offering to increase production of Cesium-131 brachytherapy sources for our short notice orders, this will allow us to increase access to GammaTile Therapy, especially in cases where a last-minute opportunity to improve clinical outcomes presents itself. I know our customers will appreciate this increased commitment to patient care."

Perspective Therapeutics is the world’s only producer of Cesium-131 brachytherapy which powers expanded internal radiation treatment options throughout the body, for prostate cancer as well as difficult to treat lung, brain, gynecological, head and neck, pelvic, and colorectal cancers.

Gritstone bio Reports Second Quarter 2023 Financial Results and Provides Corporate Updates

On August 9, 2023 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, 2023 and provided recent corporate and clinical updates (Press release, Gritstone Bio, AUG 9, 2023, View Source [SID1234634073]).

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"We are pleased with the pace at which our randomized GRANITE Phase 2/3 trial is advancing. Completing enrollment for the Phase 2 portion underscores the enthusiasm for this trial, related to the high unmet need for better treatments in common, immunologically cold tumors, such as CRC," said Andrew Allen, M.D., Ph.D., Co-founder, President, and Chief Executive Officer of Gritstone bio. "Our partnership with Friends of Cancer Research on ctMoniTR, a project to collate data across the industry to validate the use of circulating tumor DNA (ctDNA) as an early predictor of treatment outcomes, will help further define the emerging potential of ctDNA as a superior method over radiology-based approaches to evaluate early treatment effects of immunotherapy. Molecular response, or reduction in ctDNA, is the primary efficacy endpoint for the Phase 2 portion of the GRANITE trial. GRANITE has the potential to be the first neoantigen-based PCV to demonstrate efficacy in a randomized study against a cold tumor, which would be a transformational advance for the field. We look forward to sharing preliminary Phase 2 efficacy data in frontline MSS-CRC in the first quarter of 2024."

Dr. Allen continued, "Additionally, the promising data we continue to see from our CORAL (SARS-CoV-2 vaccine) program highlights the differentiation and potential advantages of self-amplifying mRNA (samRNA) over current vaccines against infectious diseases. Our recent publication in Nature Communications demonstrates the scientific rigor of our work to date and the ability of our samRNA platform to drive potent and durable immune responses. We believe our samRNA vaccine candidates have demonstrated strong potential to serve as next-generation vaccine solutions to COVID-19 and other infectious diseases."

Corporate Update

In August 2023, Gritstone announced it is partnering with the Friends of Cancer Research (Friends) in support of its ctDNA for Monitoring Treatment Response (ctMoniTR) Project. The ctMoniTR Project is a collaboration between industry, academia and government to provide data to inform the application and adoption of circulating tumor DNA (ctDNA) in drug development. Per the agreement, Gritstone will be providing data to help inform the use of change in ctDNA as an early indicator of long-term clinical benefit in cancer patients.
Clinical Program Updates
Tumor-Specific Neoantigen Oncology Programs
GRANITE – Individualized neoantigen vaccine against cold tumors
SLATE – "Off-the-shelf" neoantigen vaccine program

Enrollment is now complete in the Phase 2 portion of the Phase 2/3 study, which is evaluating GRANITE as a maintenance therapy in first-line metastatic microsatellite-stable colorectal cancer (MSS-CRC). The company has met its target of 100 patients randomized. Preliminary efficacy data on approximately 50 patients who have completed at least 4 months of maintenance treatment is expected in the first quarter of 2024.

Gritstone delivered multiple presentations detailing advances in neoantigen prediction capabilities and cancer vaccine programs at the 2023 American Association for Cancer Research (AACR) (Free AACR Whitepaper) (AACR 2023, in April 2023).
GRANITE (individualized neoantigen program) presentation: Longitudinal analysis of participants in the GRANITE Phase 1/2 supports vaccine-elicited priming and boosting of antigen-specific T cell populations associated with conversion of "cold" to "hot" tumors and molecular responses.
EDGE (Epitope Discovery for Genomes Platform) poster: Advances in EDGE models (Gritstone’s AI-driven neoantigen prediction platform) enable potential best-in-class prediction of class II HLA-presented neoantigens that could drive CD4+ T cell responses.
SLATE ("off-the-shelf" neoantigen vaccine program) poster: Description of a novel KRAS G12C class II epitope with evidence of clinical benefit associated with vaccine-elicited T cell response.
The clinical trial collaboration with the National Cancer Institute (NCI) to evaluate an autologous T cell therapy in combination with Gritstone’s KRAS-directed vaccine candidate, SLATE-KRAS, is ongoing. Under the terms of the collaboration, Gritstone will provide the SLATE-KRAS vaccine as requested by NCI. NCI will be responsible for conducting the study.

Gritstone expects to initiate a randomized Phase 2 clinical trial within SLATE ("off-the-shelf" neoantigen vaccine program) in 2024.
Infectious Disease Programs
CORAL – Second-generation SARS-CoV-2 vaccine program that serves as proof-of-concept for Gritstone’s infectious disease approach and the potential application of samRNA in infectious diseases.

In June 2023, interim results from the ongoing CORAL-BOOST study (Phase 1 study evaluating the company’s self-amplifying mRNA (samRNA) vaccine as a boost against COVID-19) were published in Nature Communications. The results demonstrate that Gritstone’s samRNA vaccine candidate boosted immunity for at least 6 months in previously vaccinated older adults and support our initial findings from a separate Phase 1 study in previously unvaccinated subjects (CORAL-CEPI).

In April 2023, Gritstone presented new data from two ongoing Phase 1 studies demonstrating persistence of high neutralizing antibodies for at least 6 months following samRNA vaccine across multiple settings and subject populations. Both datasets were presented at the 33rd European Congress of Clinical Microbiology and Infectious Diseases (ECCMID 2023).
CORAL-CEPI poster: Results from Part A of the CORAL-CEPI study (total study n = 342), primary series samRNA vaccination shown to elicit strong neutralizing antibody (nAb) responses that persist for at least 6 months, including variant cross-reactive nAb, in previously unvaccinated ("vaccine-naïve") South African subjects. Enrollment in CORAL-CEPI completed in February 2023.

CORAL-BOOST poster: Results from cohorts 3 and 4 of the CORAL-BOOST study showed the samRNA elicited robust nAbs, and that these nAbs persisted for at least 6 months regardless of primary series (adenovirus or mRNA). These results are generally consistent with 6-month neutralizing antibody results from cohorts 1 and 2 of the study, which evaluated samRNA as a boost following Vaxzevria (adenovirus) only (August 2022).

Enrollment in the CORAL-NIH trial completed in 2022. This study is sponsored and executed by NIAID.

Gritstone expects to share additional data from the CORAL-CEPI and CORAL-BOOST studies in Fall 2023.
HIV – Collaboration with Gilead under Gilead’s HIV Cure Program to research and develop vaccine-based HIV immunotherapy treatment.

The collaboration with Gilead to research and develop a vaccine-based HIV immunotherapy treatment remains active and ongoing.
Second Quarter 2023 Financial Results

Cash, cash equivalents, marketable securities and restricted cash were $122.3 million as of June 30, 2023, compared to $185.2 million as of December 31, 2022.

Research and development expenses were $31.0 million for the three months ended June 30, 2023, compared to $27.3 million for the three months ended June 30, 2022. The increase of $3.6 million was primarily due to increases of $1.0 million in personnel-related expenses, $1.0 million in laboratory supplies, and $2.5 million in facilities-related costs, offset by decreases of $0.8 million in outside services, consisting primarily of clinical trial and other chemistry, manufacturing and controls ("CMC") related expenses and $0.1 million in milestone and license payments.

General and administrative expenses were $6.7 million for the three months ended June 30, 2023, compared to $7.8 million for the three months ended June 30, 2022. The decrease of $1.1 million was primarily due to decreases of $1.3 million in outside services and $0.1 million in personnel-related expenses, offset by an increase of $0.3 million in facilities-related costs.

Collaboration, license, and grant revenues were $2.0 million for the three months ended June 30, 2023, compared to $5.5 million for the three months ended June 30, 2022. During the three months ended June 30, 2023, we recorded $0.1 million in collaboration revenue related to the Gilead Collaboration Agreement, $0.3 million in collaboration revenue related to the 2seventy Agreement, $1.1 million in grant revenue from the CEPI Funding Agreement, and $0.5 million in grant revenue from the Gates Foundation.

Galera Receives Complete Response Letter from U.S. FDA for Avasopasem Manganese

On August 9, 2023 Galera Therapeutics, Inc. (Nasdaq: GRTX), a clinical-stage biopharmaceutical company focused on developing and commercializing a pipeline of novel, proprietary therapeutics that have the potential to transform radiotherapy in cancer, reported that it has received a Complete Response Letter (CRL) from the U.S. Food and Drug Administration (FDA) regarding the Company’s New Drug Application (NDA) for avasopasem manganese (avasopasem) for radiotherapy-induced severe oral mucositis (SOM) in patients with head and neck cancer undergoing standard-of-care treatment (Press release, Galera Therapeutics, AUG 9, 2023, View Source [SID1234634072]).

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In the CRL, the FDA communicated that the results from the Phase 3 ROMAN trial together with the supporting data from the GT-201 trial are not sufficiently persuasive to establish substantial evidence of avasopasem’s effectiveness and safety for reducing severe oral mucositis in patients with head and neck cancer. FDA stated that results from an additional clinical trial will be required for resubmission.

The Company intends to request a Type A meeting with the FDA to understand the FDA’s rationale for its decision and discuss next steps to support an NDA resubmission seeking approval of avasopasem. The Company will also explore strategic alternatives, including partnering, for the continued development of avasopasem and rucosopasem.

"This response from the FDA is deeply disappointing for Galera and for patients who suffer from severe oral mucositis," said Mel Sorensen, M.D., Galera’s President and CEO. "We continue to believe in avasopasem’s potential to bring a meaningful benefit to these patients, who currently have no FDA-approved drugs for this debilitating condition."

Restructuring and Financial Update

"As we explore a potential approval path for avasopasem, we are taking decisive actions to extend our cash runway," continued Dr. Sorensen. "Unfortunately, this necessitates reducing our workforce by approximately 70%. We are grateful for the many contributions our talented team has made over the years and their commitment to avasopasem."

Galera’s restructuring plan includes a wind-down of commercial readiness efforts and headcount reductions across several departments. The Company will focus resources to define the path forward for avasopasem and to progress the ongoing clinical trials for rucosopasem. Rucosopasem is the Company’s second product candidate in development to augment the anti-cancer efficacy of stereotactic body radiation therapy (SBRT) for patients with non-small cell lung cancer and locally advanced pancreatic cancer.

"We will continue our focus on completing enrollment of our rucosopasem GRECO trials," continued Dr. Sorensen. "Our GRECO-2 trial is a 220-patient trial in locally advanced pancreatic cancer intended to build upon the positive results observed in our placebo-controlled pilot trial, where we saw meaningful improvements in multiple endpoints including overall survival and tumor outcomes. There is an urgent need for novel therapies to extend survival in patients with pancreatic cancer, and we believe rucosopasem’s unique mechanism of action in combination with SBRT could offer a transformative treatment option."

Galera estimates that its balance of cash, cash equivalents and marketable securities as of June 30, 2023 was $38.8 million. This figure is preliminary and is subject to completion of the Company’s financial closing procedures. The Company plans to file its Quarterly Report on Form 10-Q for the quarter ended June 30, 2023 on August 14, 2023. The Company now expects that its current cash will be sufficient to support operations into the second quarter of 2024.

The NDA submission for avasopasem included data from a total of 678 patients enrolled in two randomized, double-blind, placebo-controlled trials (Phase 3 ROMAN and Phase 2b GT-201). The FDA granted Fast Track and Breakthrough Therapy designations to avasopasem for the reduction of SOM induced by radiotherapy. The NDA was accepted for priority review, which is granted to applications for therapies that, if approved, would be significant improvements in the safety or effectiveness of the treatment, diagnosis, or prevention of serious conditions compared to available therapies.

Conference Call and Webcast
Galera will host a conference call and live audio webcast tomorrow, August 10, 2023 at 8:30 a.m. ET. The conference call dial-in numbers are (877) 869-3847 (domestic) or +1(201) 689-8261 (international). The live audio webcast of the event will be accessible from the Investors page of Galera’s website, investors.galeratx.com. The webcast replay will be available shortly after conclusion of the event for 90 days.

About Avasopasem
Avasopasem manganese (avasopasem) is a selective dismutase mimetic in development for the reduction of radiotherapy-induced severe oral mucositis (SOM) in patients with locally advanced head and neck cancer (HNC) and for the reduction of radiotherapy-induced esophagitis in patients with lung cancer. The FDA has granted Fast Track and Breakthrough Therapy designations to avasopasem for the reduction of SOM induced by radiotherapy.

About Rucosopasem
Rucosopasem manganese (rucosopasem) is a next-generation selective dismutase mimetic in development to increase the anti-cancer efficacy of stereotactic body radiation therapy (SBRT), a type of high fraction dose radiotherapy, in patients with non-small cell lung cancer and locally advanced pancreatic cancer. The FDA has granted orphan drug designation to rucosopasem for the treatment of pancreatic cancer.

Lilly Completes Acquisition of DICE Therapeutics

On August 9, 2023 Eli Lilly and Company (NYSE: LLY) reported the successful completion of its acquisition of DICE Therapeutics, Inc. (NASDAQ: DICE) (Press release, Eli Lilly, AUG 9, 2023, View Source [SID1234634067]). The acquisition expands Lilly’s immunology portfolio to include DICE’s novel oral therapeutic candidates, including oral IL-17 inhibitors currently in clinical development, to treat chronic diseases in immunology.

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"Since our founding nearly 150 years ago, we’ve strived to make life better for people around the world – but we know that to achieve this goal, we have to bring the brightest minds to Lilly," said Ajay Nirula, Ph.D., senior vice president of immunology at Lilly. "With the passion and expertise of our new colleagues from DICE, we look forward to continuing our pursuit of discovering and delivering life-changing medicines for patients living around the world with chronic immunologic diseases."

The Offer and the Merger
Lilly’s tender offer to acquire all of the issued and outstanding shares ("Shares") of common stock of DICE, at a purchase price of $48 per Share in cash, without interest and less any applicable tax withholding, expired as scheduled at one minute past 11:59 p.m., Eastern time, on Aug. 8, 2023 and was not further extended. Computershare Trust Company, N.A., the depositary and paying agent for the tender offer, has advised Lilly that as of the expiration of the tender offer, 42,265,390 Shares were validly tendered and not properly withdrawn, representing approximately 88.4% of the issued and outstanding Shares. Such Shares have been accepted for payment and will be promptly paid for in accordance with the terms of the tender offer. Following completion of the tender offer, Lilly completed the acquisition of DICE through the previously planned second-step merger. DICE’s common stock will be delisted from the NASDAQ Global Market.

For Lilly, Kirkland & Ellis LLP is acting as legal counsel. For DICE, Centerview Partners LLC is acting as exclusive financial advisor and Fenwick & West LLP as legal counsel.

DURECT Corporation Reports Second Quarter 2023 Financial Results and Business Update

On August 9, 2023 DURECT Corporation (Nasdaq: DRRX) reported financial results for the three months ended June 30, 2023 and provided a corporate update (Press release, DURECT, AUG 9, 2023, View Source [SID1234634066]).

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"We are pleased to have completed enrollment in our Phase 2b AHFIRM trial in June and remain on track to report topline data in the fourth quarter of 2023. Assuming a positive outcome from AHFIRM, we plan to review the results with the U.S. Food and Drug Administration (FDA) in the first quarter of 2024. If approved, larsucosterol would be the first FDA-approved treatment for alcohol-associated hepatitis (AH)," stated James E. Brown, D.V.M., President and CEO of DURECT. "We are also excited to announce the expansion of our epigenetic modulator platform into oncology. In conjunction with teams of experienced chemists and biologists, our research and development team have designed new chemical entities (NCE) that are now in preclinical development for multiple oncology indications. With this achievement, DURECT is advancing its mission to be a global leader in the emerging field of epigenetic medicine."

Recent Business Highlights:


AHFIRM enrollment completed – DURECT announced on June 7, 2023 that it had met the enrollment target in the AHFIRM trial. In total, we randomized and dosed 301 patients at leading hospitals in the U.S., Australia, E.U. and U.K., including prominent transplant centers. We continue to expect to report topline data in the fourth quarter of 2023.

AH Key Opinion Leader (KOL) event – DURECT hosted a KOL event for investors on May 16, 2023. The event included presentations by Dr. Paul Gaglio and Dr. Brett Fortune as part of our on-going campaign to build awareness of the mortality rate and unmet patient need in AH, and the role that larsucosterol may play in the treatment of AH.

Publication of Phase 2a data in AH – Additional data from DURECT’s previously completed Phase 2a trial evaluating larsucosterol in AH were published by the peer-reviewed journal American Journal of Gastroenterology. The publication featured the previously reported safety and efficacy data from the 19-patient, open label Phase 2a trial. It also included cross-study comparisons of severe AH patients from the Phase 2a trial with two matching comparison arms from a contemporaneous study conducted by the DASH (Defeat Alcoholic Steatohepatitis) Consortium.

Expanding pipeline with novel anti-cancer NCEs – Building on our knowledge of epigenetic modulation, DURECT has internally developed multiple novel small molecule DNMT inhibitors that exhibit broad spectrum activity against multiple hematologic and solid tumor types. These compounds display unique and desirable physiochemical properties and pharmacokinetic profiles, as well as favorable tolerability. We intend to select a product candidate by the end of 2023 to advance into clinical trials in cancer patients. Our goal is to be prepared to initiate clinical trials for this product candidate by the end of 2024.

Financial Highlights for Q2 2023:


Total revenues were $2.1 million and net loss was $11.2 million for the three months ended June 30, 2023 compared to total revenues of $2.1 million and net loss of $11.6 million for the three months ended June 30, 2022.

At June 30, 2023, cash, cash equivalents and investments were $34.9 million, compared to $43.6 million at December 31, 2022. Debt at June 30, 2023 was $20.7 million, compared to $21.2 million at December 31, 2022.

After the end of the second quarter, in July 2023, we completed a registered direct offering of common stock and warrants which raised net proceeds of approximately $13.8 million.

Earnings Conference Call

We will host a conference call and webcast today at 4:30 p.m. Eastern Time/1:30 p.m. Pacific Time to discuss second quarter 2023 results and provide a corporate update:

Wednesday, August 9 @ 4:30 p.m. Eastern Time / 1:30 p.m. Pacific Time

Toll Free: 1-877-407-0784

International: 1-201-689-8560

Conference ID: 13740526

Call meTM: click here

Participants can use guest dial-in numbers above to reach an operator or they can click the Call meTM link for instant telephone access to the event (dial-out). The Call meTM link will be made active 15 minutes prior to scheduled start time.

Webcast: View Source;tp_key=ba103a2a9b

A live audio webcast of the presentation will be also available by accessing DURECT’s homepage at www.durect.com on the "Events" page, under the "Investors" tab. If you are unable to participate during the live webcast, the call will be archived on DURECT’s website under "Events" in the "Investors" section.

About the AHFIRM Trial

Enrollment was completed in June 2023 in our Phase 2b randomized, double-blind, placebo-controlled, international, multi-center study in subjects with severe acute alcohol-associated hepatitis (AH) to evaluate saFety and effIcacy of laRsucosterol treatMent (AHFIRM). The study is comprised of three arms, and 301 total patients were randomized and dosed, with approximately 100 patients in each arm: (1) Placebo plus supportive care, with or without methylprednisolone capsules at the investigators’ discretion; (2) larsucosterol (30 mg); and (3) larsucosterol (90 mg). Patients in the larsucosterol arms receive the same supportive care without steroids. In order to maintain blinding, patients in the two active arms receive matching placebo capsules if the investigator prescribes steroids. The primary outcome measure will be the 90-Day incidence of mortality or liver transplantation for patients treated with larsucosterol compared to those treated with placebo. The Company has enrolled patients at clinical trial sites across the U.S., EU, U.K., and Australia. Reflecting the life-threatening nature of AH and the lack of therapeutic options, the U.S. Food and Drug Administration (FDA) has granted larsucosterol Fast Track Designation for the treatment of AH. We believe a positive outcome in the AHFIRM trial could support a New Drug Application filing. For more information, refer to ClinicalTrials.gov Identifier: NCT04563026.

About Alcohol-associated Hepatitis (AH)

AH is an acute form of alcohol-associated liver disease (ALD), associated with long-term heavy intake of alcohol and often occurs after a recent period of increased alcohol consumption (i.e., a binge). AH is typically characterized by severe inflammation and destruction of liver tissue (i.e., necrosis), potentially leading to life-threatening complications including liver failure, acute kidney injury and multi-organ failure. There are no FDA approved therapies for AH and a retrospective analysis of 77 studies published between 1971 and 2016, which included data from a total of 8,184 patients, showed the overall mortality from AH was 26% at 28 days, 29% at 90 days and 44% at 180 days. A subsequent global study published in December 2021, which included 85 tertiary centers in 11 countries across 3 continents, prospectively enrolled 2,581 AH patients with a median Model of End-Stage Liver Disease (MELD) score of 23.5, reported mortality at 28 and 90 days of approximately 20% and 31%, respectively. Stopping alcohol consumption is necessary, but frequently not sufficient for recovery in many moderate (defined as MELD scores of 11-20) and severe (defined as MELD scores >20) patients and therapies that reduce liver inflammation, such as corticosteroids, are limited by contraindications, have not been shown to improve survival at 90 days or one year, and have demonstrated an increased risk of infection. While liver transplantation is becoming more common for ALD patients, including AH patients, the total number of such transplants is still relatively small. Average charges for a liver transplant exceed $875,000, and patients require lifelong immunosuppressive therapy to prevent organ rejection.

About Larsucosterol

Larsucosterol is an endogenous sulfated oxysterol and an epigenetic modulator. Epigenetic regulators are compounds that regulate patterns of gene expression without modifying the DNA sequence. DNA hypermethylation, an example of epigenetic dysregulation, results in transcriptomic reprogramming and cellular dysfunction, and has been found to be associated with many acute (e.g., AH) or chronic diseases (e.g., NASH). As an inhibitor of DNA methyltransferases (DNMT1, DNMT3a and 3b), larsucosterol inhibits DNA methylation, which subsequently modulates expression of genes that are involved in cell signaling pathways associated with stress responses, cell death and survival, and lipid biosynthesis. This may ultimately lead to improved cell survival, reduced inflammation, and decreased lipotoxicity. As an epigenetic modulator, the proposed mechanism of action provides further scientific rationale for developing larsucosterol for the treatment of acute organ injury and certain chronic diseases.