On August 19, 2024 Genmab A/S (Nasdaq: GMAB) reported that the European Commission (EC) has granted conditional marketing authorization for TEPKINLY (epcoritamab) as a monotherapy for the treatment of adult patients with relapsed or refractory (R/R) follicular lymphoma (FL) after two or more lines of systemic therapy (Press release, Genmab, AUG 19, 2024, View Source [SID1234645980]). TEPKINLY is the first and only subcutaneous T-cell engaging bispecific antibody approved for the treatment of this patient population in the European Union (EU), as well as the European Economic Area (EEA) countries (Iceland, Liechtenstein, Norway) and Northern Ireland.

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"Follicular lymphoma can be challenging to treat and today’s approval of TEPKINLY for the treatment of relapsed/refractory follicular lymphoma after two or more lines of systemic therapy marks an important milestone for patients in the European Union who are in need of more options offering a balance of meaningful efficacy and favorable safety," said Jan van de Winkel, Ph.D., President and Chief Executive Officer of Genmab. "Alongside our partner AbbVie, we are committed to exploring the continued development of epcoritamab as a potential core therapy across B-cell malignancies."

FL is typically a slow-growing form of Hodgkin’s lymphoma (NHL) that arises from B-cell lymphocytes. FL is the second most common form of NHL overall, accounting for 20-30 percent of all NHL cases, and represents 10-20 percent of all lymphomas in the western world.i FL is considered incurable, and there is no standard of care treatment for third-line or later FL.i,ii Patients who achieve remission also often experience relapse.iii,iv,v

The conditional marketing authorization is supported by data from the Phase 1/2 EPCORE NHL-1 clinical trial: an open-label, multi-cohort, multicenter, single-arm trial that evaluated TEPKINLY as monotherapy in patients with R/R FL after two or more lines of prior systemic therapy. Patients included in the study were refractory to both anti-CD20 monoclonal antibody therapy and an alkylating agent (70% having double refractory disease), patients who were refractory to last prior treatment (82%), and patients whose disease progressed within two years of initiating first systemic therapy (52%). The results published in the Lancet Haematology showed that patients treated with TEPKINLY (n=128) had an overall response rate (ORR) of 83% and a complete response (CR) rate of 63%. At a median follow-up of 16.2 months, the median duration of response was 21.4 months (13.7, NR). Duration of complete response (DOCR) was not reached.

The study included a planned separate optimization cohort, which evaluated 86 patients with the recommended 3-step-up doses for cytokine release syndrome (CRS) mitigation. Hospitalization was not mandatory in the cycle 1 optimization cohort. With the optimized regimen, 40% of patients experienced Grade 1 CRS and 9% experienced Grade 2 (no Grade 3 or higher CRS were reported). No immune effector cell-associated neurotoxicity syndrome (ICANS) cases were reported in this cohort.

The safety profile of epcoritamab in the pivotal cohort was similar to reports of epcoritamab monotherapy in the pivotal EPCORE NHL-1 diffuse large B-cell lymphoma (DLBCL) cohort. In the pooled safety population (n=382), the most common adverse reactions (≥ 20%) with TEPKINLY were CRS, injection site reactions, fatigue, viral infection, neutropenia, musculoskeletal pain, pyrexia, and diarrhea. The most frequent serious adverse reaction (≥ 10%) was cytokine release syndrome (34%). Fourteen patients (3.7%) experienced a fatal adverse reaction (pneumonia in 9 (2.4%) patients, viral infection in 4 (1.0%) patients, and ICANS in 1 (0.3%) patient.

"The approval of epcoritamab by the European Commission is a promising update for the lymphoma community," said Kate Rogers, CEO of the Follicular Lymphoma Foundation. "Given that relapsed or refractory follicular lymphoma can be a very challenging form of cancer to treat, especially in later lines of therapy, it is critical that patients and physicians have additional options when it comes to treating this type of cancer."

About the EPCORE NHL-1 Trial
EPCORE NHL-1 is an open-label, multi-center safety and preliminary efficacy trial of epcoritamab that consists of three parts: a dose escalation part; an expansion part; and an optimization part. The trial was designed to evaluate subcutaneous epcoritamab in patients with relapsed or refractory B-cell non-Hodgkin’s lymphoma (B-NHL), including FL. In the expansion part, additional patients were enrolled to further explore the safety and efficacy of epcoritamab in three cohorts of patients with different types of relapsed/refractory B-NHLs who have limited therapeutic options. The expansion part generated pivotal data from patients with FL and DLBCL. The optimization part evaluated additional CRS mitigation strategies during cycle 1. The primary endpoint of the expansion part was overall response rate (ORR) as assessed by an Independent Review Committee (IRC). Secondary efficacy endpoints included duration of response, complete response rate, duration of complete response, progression-free survival, and time to response as determined by the Lugano criteria. Overall survival, time to next therapy, and rate of minimal residual disease negativity were also evaluated as secondary efficacy endpoints. The primary endpoint of the optimization part was the rate of ≥ Grade 2 CRS events and all grade CRS events from first dose of epcoritamab through 7 days following administration of the second full dose of epcoritamab.

About Epcoritamab
Epcoritamab is an IgG1-bispecific antibody created using Genmab’s proprietary DuoBody technology and administered subcutaneously. Genmab’s DuoBody-CD3 technology is designed to direct cytotoxic T cells selectively to elicit an immune response toward target cell types. Epcoritamab is designed to simultaneously bind to CD3 on T cells and CD20 on B cells and induces T-cell-mediated killing of CD20+ cells.vi

Epcoritamab (approved under the brand name EPKINLY in the U.S. and Japan, and TEPKINLY in the EU) has received regulatory approval in certain lymphoma indications in several territories. Epcoritamab is being co-developed by Genmab and AbbVie as part of the companies’ oncology collaboration. The companies will share commercial responsibilities in the U.S. and Japan, with AbbVie responsible for further global commercialization. Both companies will pursue additional international regulatory approvals for the investigational R/R FL indication and additional approvals for the R/R DLBCL indication.

Genmab and AbbVie continue to evaluate the use of epcoritamab as a monotherapy, and in combination, across lines of therapy in a range of hematologic malignancies. This includes four ongoing Phase 3, open-label, randomized trials including a trial evaluating epcoritamab as a monotherapy in patients with R/R DLBCL compared to investigators choice chemotherapy (NCT04628494), a trial evaluating epcoritamab in combination with R-CHOP in adult participants with newly diagnosed DLBCL (NCT05578976), a trial evaluating epcoritamab in combination with rituximab and lenalidomide (R2) in patients with R/R FL (NCT05409066), and a trial evaluating epcoritamab in combination with rituximab and lenalidomide (R2) compared to chemoimmunotherapy in patients with previously untreated FL (NCT06191744). The safety and efficacy of epcoritamab has not been established for these investigational uses. Please visit www.clinicaltrials.gov for more information.

EU Indications and Important Safety Information about Tepkinly (epcoritamab)

Indications
Tepkinly (epcoritamab) as monotherapy is indicated for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy.

Tepkinly as monotherapy is indicated for the treatment of adult patients with relapsed or refractory follicular lymphoma (FL) after two or more lines of systemic therapy.

Important Safety Information

Contraindications
Hypersensitivity to the active substance or to any of the excipients.

Special warnings and precautions for use
Cytokine release syndrome (CRS)
CRS, which may be life-threatening or fatal, occurred in patients receiving Tepkinly. The most common signs and symptoms of CRS include pyrexia, hypotension and hypoxia. Other signs and symptoms of CRS in more than two patients include chills, tachycardia, headache and dyspnoea.

Most CRS events occurred in Cycle 1 and were associated with the first full dose of Tepkinly. Administer prophylactic corticosteroids to mitigate the risk of CRS. Patients should be monitored for signs and symptoms of CRS following Tepkinly administration. At the first signs or symptoms of CRS, institute treatment of supportive care with tocilizumab and/or corticosteroids as appropriate. Patients should be counselled on the signs and symptoms associated with CRS and patients should be instructed to contact their healthcare professional and seek immediate medical attention should signs or symptoms occur at any time. Management of CRS may require either temporary delay or discontinuation of Tepkinly based on the severity of CRS. Patients with DLBCL should be hospitalised for 24 hours after administration of the Cycle 1 Day 15 dose of 48 mg to monitor for signs and symptoms of CRS.

Immune effector cell-associated neurotoxicity syndrome (ICANS)
ICANS, including a fatal event, have occurred in patients receiving Tepkinly. ICANS may manifest as aphasia, altered level of consciousness, impairment of cognitive skills, motor weakness, seizures, and cerebral oedema. The majority of cases of ICANS occurred within Cycle 1 of Tepkinly treatment, however some occurred with delayed onset. Patients should be monitored for signs and symptoms of ICANS following Tepkinly administration. At the first signs or symptoms of ICANS treatment with corticosteroids and non-sedating-anti-seizure medicinal products should be instituted as appropriate. Patients should be counselled on the signs and symptoms of ICANS and that the onset of events may be delayed. Patients should be instructed to contact their healthcare professional and seek immediate medical attention should signs or symptoms occur at any time. Tepkinly should be delayed or discontinued as recommended. Patients with DLBCL should be hospitalised for 24 hours after administration of the Cycle 1 Day 15 dose of 48 mg to monitor for signs and symptoms of ICANS .

Serious infections
Treatment with Tepkinly may lead to an increased risk of infections. Serious or fatal infections were observed in patients treated with Tepkinly in clinical studies. Administration of Tepkinly should be avoided in patients with clinically significant active systemic infections. As appropriate, prophylactic antimicrobials should be administered prior to and during treatment with Tepkinly. Patients should be monitored for signs and symptoms of infection, before and after Tepkinly administration, and treated appropriately. In the event of febrile neutropenia, patients should be evaluated for infection and managed with antibiotics, fluids and other supportive care, according to local guidelines.

Tumour Lysis Syndrome (TLS)
TLS has been reported in patients receiving Tepkinly. Patients at an increased risk for TLS are recommended to receive hydration and prophylactic treatment with a uric acid lowering agent. Patients should be monitored for signs or symptoms of TLS, especially patients with high tumour burden or rapidly proliferative tumours, and patients with reduced renal function. Patients should be monitored for blood chemistries and abnormalities should be managed promptly.

Tumour flare
Tumour flare has been reported in patients treated with Tepkinly. Manifestations could include localized pain and swelling. Consistent with the mechanism of action of Tepkinly, tumour flare is likely due to the influx of T-cells into tumour sites following Tepkinly administration. There are no specific risk factors for tumour flare that have been identified; however, there is a heightened risk of compromise and morbidity due to mass effect secondary to tumour flare in patients with bulky tumours located in close proximity to airways and/or a vital organ. Patients treated with Tepkinly should be monitored and evaluated for tumour flare at critical anatomical sites.

CD20-negative disease
There are limited data available on patients with CD20-negative DLBCL and patients with CD20-negative FL treated with Tepkinly, and it is possible that patients with CD20-negative DLBCL and CD20-negative FL may have less benefit compared to patients with CD20-positive DLBCL and patients with CD20-postitive FL, respectively. The potential risks and benefits associated with treatment of patients with CD20-negative DLBCL and FL with Tepkinly should be considered.

Immunisation
Live and/or live-attenuated vaccines should not be given during Tepkinly therapy. Studies have not been conducted in patients who received live vaccines.

Fertility, pregnancy and lactation
Tepkinly is not recommended during pregnancy and in women of childbearing potential not using contraception.

Effects on ability to drive and use machines
Tepkinly has minor influence on the ability to drive and use machines. Due to the potential for ICANS, patients should be advised to exercise caution while (or avoid if symptomatic) driving, cycling or using heavy or potentially dangerous machines.

Undesirable effects
Summary of the safety profile
The safety of Tepkinly was evaluated in 382 patients with relapsed or refractory large B-cell lymphoma (N=167), FL (N=129) and FL (3-step step-up dose schedule N=86) after two or more lines of systemic therapy and included all the patients who enrolled to the 48 mg dose and received at least one dose of TEPKINLY. The most common adverse reactions (≥ 20%) were CRS, injection site reactions, fatigue, viral infection, neutropenia, musculoskeletal pain, pyrexia, and diarrhoea.

Serious adverse reactions occurred in 50% of patients. The most frequent serious adverse reaction (≥ 10%) was cytokine release syndrome (34%). Fourteen patients (3.7%) experienced a fatal adverse reaction (pneumonia in 9 (2.4%) patients, viral infection in 4 (1.0%) patients, and ICANS in 1 (0.3%) patient). Adverse reactions that led to discontinuation occurred in 6.8% of patients. Discontinuation of Tepkinly due to pneumonia occurred in 14 (3.7%) patients, viral infection in 8 (2.1%) patients, fatigue in 2 (0.5%) patients, and CRS, ICANS, or diarrhoea, in 1 (0.3%) patient each.

Dose delays due to adverse reactions occurred in 42% of patients. Adverse reactions leading to dose delays (≥ 3%) were viral infections (17%), CRS (11%), neutropenia (5.2%), pneumonia (4.7%), upper respiratory tract infection (4.2%), and pyrexia (3.7%).

This is not a complete summary of all safety information.

See Tepkinly full Summary of Product Characteristics (SmPC) at www.ema.europa.eu

Globally, prescribing information varies; refer to the individual country product label for complete information.

On August 19, 2024 OS Therapies (NYSE American: OSTX) ("OS Therapies" or "the Company"), an ADC and Immunotherapy research and clinical-stage biopharmaceutical company, reported that it has been accepted into Johnson & Johnson Innovation – JLABS (Press release, OS Therapies, AUG 19, 2024, View Source;JLABS [SID1234645998]). Through membership of JLABS, OS Therapies aims to further develop and enter the clinic with its tunable Antibody Drug Conjugate (ADC) linker-based platform that relies on pH sensitive linkers & coating technology to reduce off-target effects to improve safety and increase the number & diversity of therapeutic payloads delivered. Through these developments, OS Therapies hopes to offer improved efficacy versus other ADCs in the market or in development. Drug candidates developed using OS Therapies’ tunable ADC platform leverage this unique linker platform to create new intellectual property for both novel and off-patent targeting antibodies and drug payloads.

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On August 19, 2024 Daiichi Sankyo (TSE: 4568) reported that the European Medicines Agency (EMA) has validated the Type II Variation application for ENHERTU (trastuzumab deruxtecan) as a monotherapy for the treatment of adult patients with unresectable or metastatic HER2 low (defined as IHC 1+ or IHC 2+/ISH-) or HER2 ultralow (defined as IHC 0 with membrane staining) breast cancer who have received at least one endocrine therapy in the metastatic setting (Press release, AstraZeneca, AUG 19, 2024, View Source [SID1234645999]).

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ENHERTU is a specifically engineered HER2 directed DXd antibody drug conjugate (ADC) discovered by Daiichi Sankyo and being jointly developed and commercialized by Daiichi Sankyo and AstraZeneca (LSE/STO/Nasdaq: AZN).

Validation confirms that the application is complete and commences the scientific review process by the EMA’s Committee for Medicinal Products for Human Use. This application is based on data from the DESTINY-Breast06 phase 3 trial presented as a late-breaking oral session at the 2024 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) (#ASCO24) Annual Meeting.

"This submission builds on our existing indication for ENHERTU in patients with HER2 low metastatic breast cancer and an expanded approval would enable the potential for use in an earlier disease setting as well as in a broader patient population that now includes HER2 ultralow," said Ken Takeshita, MD, Global Head, R&D, Daiichi Sankyo. "We look forward to working closely with the EMA to potentially bring this medicine to more patients in the EU."

Additional regulatory submissions for ENHERTU in this indication are underway globally.

About DESTINY-Breast06

DESTINY-Breast06 is a global, randomized, open-label, phase 3 trial evaluating the efficacy and safety of ENHERTU (5.4 mg/kg) versus investigator’s choice of chemotherapy (capecitabine, paclitaxel or nab paclitaxel) in patients with HR positive, HER2 low (defined as IHC 1+ or IHC 2+/ISH-) or HER2 ultralow (defined as IHC 0 with membrane staining) advanced or metastatic breast cancer. Patients in the trial had no prior chemotherapy for advanced or metastatic disease and received at least two lines of prior endocrine therapy in the metastatic setting. Patients also were eligible if they had received one prior line of endocrine therapy combined with a CDK4/6 inhibitor in the metastatic setting and experienced disease progression within six months of starting first-line treatment or received endocrine therapy as an adjuvant treatment and experienced disease recurrence within 24 months.

The primary endpoint is progression-free survival (PFS) in the HR positive, HER2 low patient population as measured by blinded independent central review (BICR). Key secondary endpoints include PFS by BICR in the overall trial population (HER2 low and HER2 ultralow), overall survival (OS) in patients in the HER2 low patient population and OS in the overall trial population. Other secondary endpoints include objective response rate, duration of response, time to first subsequent treatment or death, time to second subsequent treatment or death and safety. Analysis of the HER2 ultralow subgroup was not powered to demonstrate statistical significance.

DESTINY-Breast06 enrolled 866 patients (n=713 for HER2 low and n=153 for HER2 ultralow) at multiple sites in Asia, Europe, North America, Oceania and South America. For more information about the trial, visit ClinicalTrials.gov.

About Breast Cancer and HER2 Expression

Breast cancer is the second most common cancer and one of the leading causes of cancer-related deaths worldwide.1 More than two million breast cancer cases were diagnosed in 2022 with more than 665,000 deaths globally.1 In Europe, approximately 557,000 cases of breast cancer are diagnosed annually.2 While survival rates are high for those diagnosed with early breast cancer, only about 30% of patients diagnosed with or who progress to metastatic disease are expected to live five years following diagnosis.3

HER2 is a tyrosine kinase receptor growth-promoting protein expressed on the surface of many types of tumors, including breast cancer.4 Patients with high levels of HER2 expression (IHC 3+ or IHC2+/ISH+) are classified as HER2 positive and treated with HER2 targeted therapies, representing approximately 15 to 20% percent of all breast cancers.5 Historically, tumors that were not classified as HER2 positive were classified as HER2 negative, despite the fact that many of these tumors still carry some level of HER2 expression.6 It is estimated that approximately 60% to 65% of HR positive, HER2 negative breast cancers are HER2 low and potentially an additional 25% may be HER2 ultralow.7,8

Endocrine therapies are widely given consecutively in the early lines of treatment for HR positive metastatic breast cancer.9 However, following two lines of endocrine therapy, further efficacy with additional endocrine treatment is often limited.9 The current standard of care following endocrine therapy is chemotherapy, which is associated with poor response rates and outcomes.9,10,11,12

Prior to the approval of ENHERTU following chemotherapy in HER2 low metastatic breast cancer based on the DESTINY-Breast04 trial, there were no targeted therapies approved specifically for patients with HER2 low expression.13 There are no targeted therapies specifically approved for patients with HER2 ultralow expression.14

About ENHERTU

ENHERTU (trastuzumab deruxtecan; fam-trastuzumab deruxtecan-nxki in the U.S. only) is a HER2 directed ADC. Designed using Daiichi Sankyo’s proprietary DXd ADC Technology, ENHERTU is the lead ADC in the oncology portfolio of Daiichi Sankyo and the most advanced program in AstraZeneca’s ADC scientific platform. ENHERTU consists of a HER2 monoclonal antibody attached to a number of topoisomerase I inhibitor payloads (an exatecan derivative, DXd) via tetrapeptide-based cleavable linkers.

ENHERTU (5.4 mg/kg) is approved in more than 65 countries worldwide for the treatment of adult patients with unresectable or metastatic HER2 positive (IHC 3+ or in-situ hybridization (ISH)+) breast cancer who have received a prior anti-HER2-based regimen, either in the metastatic setting or in the neoadjuvant or adjuvant setting, and have developed disease recurrence during or within six months of completing therapy based on the results from the DESTINY-Breast03 trial.

ENHERTU (5.4 mg/kg) is approved in more than 65 countries worldwide for the treatment of adult patients with unresectable or metastatic HER2 low (IHC 1+ or IHC 2+/ISH-) breast cancer who have received a prior systemic therapy in the metastatic setting or developed disease recurrence during or within six months of completing adjuvant chemotherapy based on the results from the DESTINY-Breast04 trial.

ENHERTU (5.4 mg/kg) is approved in more than 35 countries worldwide for the treatment of adult patients with unresectable or metastatic NSCLC whose tumors have activating HER2 (ERBB2) mutations, as detected by a locally or regionally approved test, and who have received a prior systemic therapy based on the results from the DESTINY-Lung02 trial. Continued approval in the U.S. for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.

ENHERTU (6.4 mg/kg) is approved in more than 45 countries worldwide for the treatment of adult patients with locally advanced or metastatic HER2 positive (IHC 3+ or IHC 2+/ISH+) gastric or gastroesophageal junction (GEJ) adenocarcinoma who have received a prior trastuzumab-based regimen based on the results from the DESTINY-Gastric01, DESTINY-Gastric02 and/or DESTINY-Gastric06 trials. Full approval in China for this indication will depend on whether a randomized controlled confirmatory clinical trial can demonstrate clinical benefit in this population.

ENHERTU (5.4 mg/kg) is approved in the U.S. for the treatment of adult patients with unresectable or metastatic HER2 positive (IHC 3+) solid tumors who have received prior systemic treatment and have no satisfactory alternative treatment options based on efficacy results from the DESTINY-PanTumor02, DESTINY-Lung01 and DESTINY-CRC02 trials. Continued approval for this indication in the U.S. may be contingent upon verification and description of clinical benefit in a confirmatory trial.

On August 19, 2024 ImmunoPrecise Antibodies Ltd. (the "Company" or "IPA") (NASDAQ: IPA), an AI-driven biotherapeutics company, reported a groundbreaking achievement: the ability to engineer antibodies entirely through computer simulations using LENSai (Press release, ImmunoPrecise Antibodies, AUG 19, 2024, View Source [SID1234645982]). This marks a significant milestone for the biotechnology industry. Additionally, the antibodies produced by IPA are highly specific to a challenging oncology target located within the Tumor Microenvironment (TME).

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This achievement was made possible by the patented LENSai technologies, which began from an exceptionally challenging starting point: the target protein had no previously known structural information. Despite this, the LENSai platform was able to model the protein’s structure and accurately engineer antibodies specifically tailored to bind to it. This is particularly significant because designing effective therapeutics without prior structural knowledge of the target is a major hurdle in drug discovery, often requiring extensive experimentation and resources. LENSai’s ability to overcome this challenge entirely in silico highlights its advanced capabilities in computational biology and its potential to revolutionize the field of antibody engineering.

The potential therapies were engineered to bind exclusively to the oncology target under specific conditions. Importantly, it was demonstrated that these therapies do not bind to similar proteins known to be present on healthy cells and tissues, which is crucial because such binding typically leads to the negative side effects seen in chemotherapy. These findings highlight LENSai’s ability to address one of the toughest challenges in optimizing antibodies for oncology.

"This marks a significant milestone for the biotechnology industry, demonstrating LENSai’s ability to engineer highly specific and validated antibodies for the exceedingly difficult environment around tumors, and doing so entirely on a computer," said Dr. Jennifer Bath, President and CEO of IPA. "This success, elevated by the fact that important details of the protein being targeted were unknown, represents a major feat in the application of LENSai in generating targeted and specific therapies for the potential treatment of cancer. Moreover, our continuous advancements and integrations have significantly enhanced our ability to develop these therapies faster, more efficiently, and at a reduced cost compared to traditional methods."

Historically, biologic drug discovery has been a risky, time-consuming, and expensive endeavor, with failure rates exceeding 90%. Recent data indicates that it now costs approximately $1.3 billion and takes an average of 10 to 15 years to bring a single new drug to market, with costs potentially rising even higher depending on the complexity of the drug and therapeutic area​. The market has seen major successes like Humira, which has shown potential in the tumor microenvironment and has generated over $20 billion in annual sales. Similarly, Keytruda has demonstrated effectiveness in modulating the tumor microenvironment and has generated over $14 billion annually. However, the time, cost, and risk associated with developing such biologics have historically limited the number of these therapies that can be pursued, creating a bottleneck in the availability of life-saving treatments.

"The successful application of LENSai, along with laboratory validation of these novel antibodies, underscores LENSai’s potential to accelerate the development of precision-targeted treatments, aimed at more effective cancer therapies with fewer side effects," stated Dr. Dirk Van Hyfte, MD, PhD, Co-Founder and Head of Innovation at BioStrand, an IPA subsidiary. "What LENSai has accomplished today is just one of the reasons we firmly believe in its ability to bring potentially life-changing biologics to patients with the power of our AI."

On August 19, 2024 Kineta, Inc. (Nasdaq: KA), a clinical-stage biotechnology company focused on the development of novel immunotherapies in oncology that address cancer immune resistance, reported that enrollment has resumed for the Company’s ongoing VISTA-101 Phase 1/2 clinical trial, effective immediately (Press release, Kineta, AUG 19, 2024, View Source;utm_medium=rss&utm_campaign=kineta-reopens-enrollment-for-the-vista-101-clinical-trial-evaluating-kva12123-in-patients-with-advanced-solid-tumor-cancer [SID1234645983]). As previously announced on March 12, 2024, patient enrollment in the clinical trial was suspended due to certain investors indicating that they would not fulfill their funding obligation due in April 2024 pursuant to the previously disclosed private placement financing.

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To date, KVA12123 has cleared the fifth of six monotherapy dose levels and two of the four cohorts in combination with pembrolizumab. Initial results demonstrating partial response and stable disease in the combination cohorts and durable stable disease in the monotherapy cohorts were reported earlier this year at the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2024. Additionally, the initial results of KVA12123 showed a favorable clinical safety and tolerability profile with no dose limiting toxicities and no evidence of CRS-associated cytokines at any dose level.

"We are very pleased to resume enrollment for VISTA-101. KVA12123 has been well tolerated with no dose limiting toxicities and no cytokine release syndrome and we continue to be encouraged by the initial data demonstrated. With enrollment now recommenced, we are focused on successful execution and working towards completing enrollment which we expect to do by the end of 2024," said Thierry Guillaudeux, Chief Scientific Officer of Kineta.

On July 8, Kineta announced that it had entered into an exclusivity and right of first offer agreement (the "Agreement") with TuHURA Biosciences, Inc. ("TuHURA"), a Phase 3 registration-stage immuno-oncology company developing novel technologies to overcome resistance to cancer immunotherapy. As part of the Agreement, Kineta received a concurrent $5 million nonrefundable payment from TuHURA. Kineta and TuHURA are cooperating on the reinitiation of patient enrollment into this trial.

"KVA12123 is a novel, differentiated new treatment alternative for patients with cancer. The completion of the enrollment in the Phase 1 portion of the trial this year is an important milestone for this exciting development program and we are pleased to work closely with the Kineta team to resume enrollment," said James A. Bianco, Chief Executive Officer of TuHURA.

Pursuant to the Agreement, among other things, Kineta has granted TuHURA an exclusive right to acquire Kineta’s worldwide patents, patent rights, patent applications, product and development program assets, technical and business information, and other rights and assets associated with and derived from its development program related to KVA12123, Kineta’s VISTA blocking immunotherapy. This exclusive right shall continue through the first to occur of (a) the execution of any definitive agreement with respect to a potential transaction by TuHURA or one or more of its affiliates and (b) 11:59 PM Eastern Time on October 1, 2024, subject to extension.

KEYTRUDA is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA.