Immunocore announces clinical trial collaboration with Sanofi to evaluate Sanofi’s product candidate SAR444245, non-alpha IL-2, in combination with KIMMTRAK® in patients with metastatic cutaneous melanoma

On June 3, 2022 Immunocore Holdings Plc (Nasdaq: IMCR) ("Immunocore" or the "Company"), a commercial-stage biotechnology company pioneering the development of a novel class of T cell receptor (TCR) bispecific immunotherapies designed to treat a broad range of diseases, including cancer, infection and autoimmune disease, reported it has entered into a clinical trial collaboration and supply agreement with Sanofi (Press release, Immunocore, JUN 3, 2022, View Source [SID1234615493]).

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Under the agreement, Sanofi will evaluate its precisely PEGylated, engineered version of IL-2, SAR444245, in combination with KIMMTRAK, Immunocore’s novel bispecific protein targeting gp100, in HLA-A*02:01 positive patients with advanced unresectable or metastatic skin cancers as part of Sanofi’s ongoing Phase 1/2 study.

Under the terms of the agreement, Sanofi will be responsible for clinical development and will assume all costs associated with the study, other than expenses related to the manufacturing and supply of KIMMTRAK for which Immunocore is responsible.

SAR444245 (formerly known as THOR-707), Sanofi’s product candidate, is a differentiated IL-2 engineered for specificity and selectivity towards CD8+ T cells and Natural Killer (NK) cells. The molecule has a single, targeted PEG-moiety irreversibly linked to a novel amino acid inserted at a precise location. This characteristic prevents SAR444245 from binding to CD25 (alpha-subunit) while preferentially binding to the beta/gamma IL-2 receptor subunits. Beta/gamma IL-2 receptor engagement has tuned IL-2 specificity for the robust proliferation of T-effector and NK cells, avoiding expansion of T-regulatory cells or eosinophils.

John Reed, MD, PhD, Executive Vice President and Global Head of R&D of Sanofi, said: "We are excited to embark on this collaboration with Immunocore. The strong scientific rationale makes it compelling to investigate Immunocore’s KIMMTRAK, the first approved TCR therapeutic for a solid tumor, in combination with our engineered lymphokine, SAR444245. While we are actively studying SAR444245 as monotherapy and in combination with anti-PD-1 class checkpoint inhibitors and with approved immuno-competent monoclonal antibodies, the collaboration with Immunocore represents Sanofi’s first exploration of combining SAR444245 with a T cell engager. We are therefore very eager to explore this high potential combination in our ongoing multi-arm Phase 1/2 clinical study."

David Berman, MD, PhD, Head of Research and Development at Immunocore, said: "Immunocore has demonstrated that in vitro, IL-2 can enhance the activity of the ImmTAC platform, particularly in the context of tumor-associated inhibitory macrophages, and that metastatic uveal melanoma (mUM) patients with higher expression of IL2-beta and gamma, but not alpha, receptor have better overall survival (OS) on KIMMTRAK (presented at SITC (Free SITC Whitepaper) 2021). We are pleased that Sanofi will test this hypothesis in their clinical trial in patients with metastatic cutaneous melanoma (mCM), a population with significant unmet medical need."

In January 2022 and April 2022, the United States Food and Drug Administration (FDA) and the European Commission (EC), respectively, approved KIMMTRAK (tebentafusp) for the treatment of HLA-A*02:01-positive adult patients with unresectable or metastatic uveal melanoma (mUM). Immunocore is currently planning a randomized study of KIMMTRAK with or without anti-PD1 therapy in patients with metastatic melanoma and anticipates initiating the trial in the fourth quarter of 2022.

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About KIMMTRAK
KIMMTRAK is a novel bispecific protein comprised of a soluble T cell receptor fused to an anti-CD3 immune-effector function. KIMMTRAK specifically targets gp100, a lineage antigen expressed in melanocytes and melanoma. This is the first molecule developed using Immunocore’s ImmTAC technology platform designed to redirect and activate T cells to recognize and kill tumor cells. KIMMTRAK has been granted Breakthrough Therapy Designation, Fast Track designation and orphan drug designation by the FDA in the United States, Accelerated Assessment by the EMA, and Promising Innovative Medicine (PIM) designation under the UK Early Access to Medicines Scheme for metastatic uveal melanoma.

IMPORTANT SAFETY INFORMATION

Cytokine Release Syndrome (CRS), which may be serious or life-threatening, occurred in patients receiving KIMMTRAK. Monitor for at least 16 hours following first three infusions and then as clinically indicated. Manifestations of CRS may include fever, hypotension, hypoxia, chills, nausea, vomiting, rash, elevated transaminases, fatigue, and headache. CRS occurred in 89% of patients who received KIMMTRAK with 0.8% being grade 3 or 4. Ensure immediate access to medications and resuscitative equipment to manage CRS. Ensure patients are euvolemic prior to initiating the infusions. Closely monitor patients for signs or symptoms of CRS following infusions of KIMMTRAK. Monitor fluid status, vital signs, and oxygenation level and provide appropriate therapy. Withhold or discontinue KIMMTRAK depending on persistence and severity of CRS.

Skin Reactions

Skin reactions, including rash, pruritus, and cutaneous edema occurred in 91% of patients treated with KIMMTRAK. Monitor patients for skin reactions. If skin reactions occur, treat with antihistamine and topical or systemic steroids based on persistence and severity of symptoms. Withhold or permanently discontinue KIMMTRAK depending on the severity of skin reactions.

Elevated Liver Enzymes

Elevations in liver enzymes occurred in 65% of patients treated with KIMMTRAK. Monitor alanine aminotransferase (ALT), aspartate aminotransferase (AST), and total blood bilirubin prior to the start of and during treatment with KIMMTRAK. Withhold KIMMTRAK according to severity.

Embryo-Fetal Toxicity

KIMMTRAK may cause fetal harm. Advise pregnant patients of potential risk to the fetus and patients of reproductive potential to use effective contraception during treatment with KIMMTRAK and 1 week after the last dose.

The most common adverse reactions (≥30%) in patients who received KIMMTRAK were cytokine release syndrome, rash, pyrexia, pruritus, fatigue, nausea, chills, abdominal pain, edema, hypotension, dry skin, headache, and vomiting. The most common (≥50%) laboratory abnormalities were decreased lymphocyte count, increased creatinine, increased glucose, increased AST, increased ALT, decreased hemoglobin, and decreased phosphate.

Please see full Prescribing Information, including BOXED WARNING for CRS.

About KIMMTRAKConnect
Immunocore is committed to helping patients who need KIMMTRAK obtain access via our KIMMTRAKConnect program. The program provides services with dedicated nurse case managers who provide personalized support, including educational resources, financial assistance, and site of care coordination. To learn more, visit KIMMTRAKConnect.com or call 844-775-2273.

About ImmTAC Molecules
Immunocore’s proprietary T cell receptor (TCR) technology generates a novel class of bispecific biologics called ImmTAC (Immune mobilizing monoclonal TCRs Against Cancer) molecules that are designed to redirect the immune system to recognize and kill cancerous cells. ImmTAC molecules are soluble TCRs engineered to recognize intracellular cancer antigens with ultra-high affinity and selectively kill these cancer cells via an anti-CD3 immune-activating effector function. Based on the demonstrated mechanism of T cell infiltration into human tumors, the ImmTAC mechanism of action holds the potential to treat hematologic and solid tumors, regardless of mutational burden or immune infiltration, including immune "cold" low mutation rate tumors.

Bristol Myers Squibb Withdraws Supplemental Biologics License Application (sBLA) for Reblozyl® (luspatercept-aamt) for Non-transfusion Dependent (NTD) Beta Thalassemia

On June 3, 2022 Bristol Myers Squibb (NYSE: BMY) reported that the company has withdrawn a supplemental biologics license application (sBLA) for Reblozyl (luspatercept-aamt) for the treatment of anemia in adults with non-transfusion dependent (NTD) beta thalassemia (Press release, Bristol-Myers Squibb, JUN 3, 2022, View Source [SID1234615510]). The Company could not appropriately address the U.S. Food and Drug Administration’s questions about the benefit-risk profile of Reblozyl in this patient population based on the current dataset from the Phase 2 BEYOND trial.

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"While we will not pursue this indication in the U.S., we’re continuing to evaluate Reblozyl in a broad clinical development program to bring this important therapeutic option to more patients living with the burden of anemia," said Noah Berkowitz, M.D., Ph.D., senior vice president, Hematology Development, Bristol Myers Squibb.

Reblozyl, a first-in-class therapeutic option, is currently approved in the United States, European Union and Canada to address transfusion-dependent anemia-associated beta thalassemia and lower-risk myelodysplastic syndromes.

About BEYOND

BEYOND (NCT03342404) is a Phase 2, double-blind, randomized, placebo-controlled, multicenter study to determine the efficacy and safety of luspatercept-aamt (ACE-536) versus placebo in adults with non-transfusion dependent beta thalassemia. The study is divided into the screening period, double-blind treatment period (DBTP) and post-treatment follow-up period (PTFP) and randomized 145 subjects at a 2:1 ratio of Reblozyl versus placebo. All patients were eligible to receive best supportive care, which included red blood cell transfusions; iron-chelating agents; use of antibiotic, antiviral, and antifungal therapy; and/or nutritional support, as needed. The primary endpoint of the study is the proportion of subjects who have an increase from baseline ≥1.0 g/dL in mean of hemoglobin values over a continuous 12-week interval from Week 13 to Week 24 of treatment in the absence of transfusions. Key secondary endpoints include mean change in non-transfusion dependent beta thalassemia-patient reported outcome (NTDT-PRO) Tiredness and Weakness (TW) domain score and baseline hemoglobin (Hb).

About Beta Thalassemia

Beta thalassemia is an inherited blood disorder caused by a genetic defect in hemoglobin. It is one of the most common autosomal recessive disorders, and the total annual incidence of symptomatic individuals is estimated at 1 in 100,000 people globally.1 While beta thalassemia remains a rare disease, its prevalence has increased in the United States by approximately 7.5% over the last 50 years.2 The disease is associated with ineffective erythropoiesis, which results in the production of fewer and less healthy red blood cells (RBCs), often leading to severe anemia—a condition that can be debilitating and can lead to other complications for patients—as well as other serious health issues.3 Treatment options for anemia associated with beta thalassemia are limited, consisting mainly of frequent RBC transfusions that have the potential to contribute to iron overload, which can cause serious complications such as organ damage.1 Non-transfusion dependent beta thalassemia is a term used to describe patients who do not require lifelong regular transfusions for survival, although they may experience a range of clinical complications and require occasional or even frequent transfusions, usually for defined periods of time.4

About Reblozyl

Reblozyl, a first-in-class therapeutic option, promotes late-stage red blood cell maturation in animal models.1Reblozyl is being developed and commercialized through a global collaboration with Merck following Merck’s acquisition of Acceleron Pharma, Inc. in November 2021. Reblozyl is currently approved in the U.S. for the treatment of:

anemia in adult patients with beta thalassemia who require regular red blood cell transfusions, and
anemia failing an erythropoiesis stimulating agent and requiring 2 or more red blood cell units over 8 weeks in adult patients with very low- to intermediate-risk myelodysplastic syndrome with ring sideroblasts (MDS-RS) or with myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis (MDS/MPN-RS-T).
Reblozyl is not indicated for use as a substitute for red blood cell transfusions in patients who require immediate correction of anemia.

Important Safety Information

WARNINGS AND PRECAUTIONS

Thrombosis/Thromboembolism

In adult patients with beta thalassemia, thromboembolic events (TEE) were reported in 8/223 (3.6%) REBLOZYL-treated patients. TEEs included deep vein thrombosis, pulmonary embolus, portal vein thrombosis, and ischemic stroke. Patients with known risk factors for thromboembolism (splenectomy or concomitant use of hormone replacement therapy) may be at further increased risk of thromboembolic conditions. Consider thromboprophylaxis in patients at increased risk of TEE. Monitor patients for signs and symptoms of thromboembolic events and institute treatment promptly.

Hypertension

Hypertension was reported in 10.7% (61/571) of REBLOZYL-treated patients. Across clinical studies, the incidence of Grade 3 to 4 hypertension ranged from 1.8% to 8.6%. In patients with beta thalassemia with normal baseline blood pressure, 13 (6.2%) patients developed systolic blood pressure (SBP) ≥130 mm Hg and 33 (16.6%) patients developed diastolic blood pressure (DBP) ≥80 mm Hg. In adult patients with MDS with normal baseline blood pressure, 26 (29.9%) patients developed SBP ≥130 mm Hg and 23 (16.4%) patients developed DBP ≥80 mm Hg. Monitor blood pressure prior to each administration. Manage new or exacerbations of preexisting hypertension using anti-hypertensive agents.

Embryo-Fetal Toxicity

REBLOZYL may cause fetal harm when administered to a pregnant woman. REBLOZYL caused increased post-implantation loss, decreased litter size, and an increased incidence of skeletal variations in pregnant rat and rabbit studies. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment and for at least 3 months after the final dose.

ADVERSE REACTIONS

Beta Thalassemia

Serious adverse reactions occurred in 3.6% of patients on REBLOZYL. Serious adverse reactions occurring in 1% of patients included cerebrovascular accident and deep vein thrombosis. A fatal adverse reaction occurred in 1 patient treated with REBLOZYL who died due to an unconfirmed case of acute myeloid leukemia (AML).
Most common adverse reactions (at least 10% for REBLOZYL and 1% more than placebo) were headache (26% vs 24%), bone pain (20% vs 8%), arthralgia (19% vs 12%), fatigue (14% vs 13%), cough (14% vs 11%), abdominal pain (14% vs 12%), diarrhea (12% vs 10%) and dizziness (11% vs 5%).
Myelodysplastic Syndromes

Grade >3 (≥2%) adverse reactions included fatigue, hypertension, syncope and musculoskeletal pain. A fatal adverse reaction occurred in 5 (2.1%) patients.
The most common (≥10%) adverse reactions included fatigue, musculoskeletal pain, dizziness, diarrhea, nausea, hypersensitivity reactions, hypertension, headache, upper respiratory tract infection, bronchitis, and urinary tract infection.
LACTATION

It is not known whether REBLOZYL is excreted into human milk or absorbed systemically after ingestion by a nursing infant. REBLOZYL was detected in milk of lactating rats. When a drug is present in animal milk, it is likely that the drug will be present in human milk. Because many drugs are excreted in human milk, and because of the unknown effects of REBLOZYL in infants, a decision should be made whether to discontinue nursing or to discontinue treatment. Because of the potential for serious adverse reactions in the breastfed child, breastfeeding is not recommended during treatment and for 3 months after the last dose.

Please see full Prescribing Information for REBLOZYL.

Bristol Myers Squibb: Creating a Better Future for People with Cancer

Bristol Myers Squibb is inspired by a single vision — transforming people’s lives through science. The goal of the company’s cancer research is to deliver medicines that offer each patient a better, healthier life and to make cure a possibility. Building on a legacy across a broad range of cancers that have changed survival expectations for many, Bristol Myers Squibb researchers are exploring new frontiers in personalized medicine, and through innovative digital platforms, are turning data into insights that sharpen their focus. Deep scientific expertise, cutting-edge capabilities and discovery platforms enable the company to look at cancer from every angle. Cancer can have a relentless grasp on many parts of a patient’s life, and Bristol Myers Squibb is committed to taking actions to address all aspects of care, from diagnosis to survivorship. Because as a leader in cancer care, Bristol Myers Squibb is working to empower all people with cancer to have a better future.

Knight to Present at the Jefferies 2022 Healthcare Conference in New York City

On June 3, 2022 Knight Therapeutics Inc. (TSX: GUD) ("Knight") a pan-America (ex-USA) specialty pharmaceutical company, reported that Samira Sakhia, President and Chief Executive Officer, is scheduled to present at the Jefferies 2022 Healthcare Conference on Friday, June 10, 2022 at 10:00 AM ET in New York City (Press release, Knight Therapeutics, JUN 3, 2022, View Source [SID1234615526]). A copy of the presentation will be available at www.gud-knight.com.

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Dxcover Presents Data on Benefits of Spectroscopic Liquid Biopsy for Multi-Cancer Early Detection at ASCO 2022

On June 3, 2022 Dxcover Limited, a clinical stage diagnostics company developing spectroscopic liquid biopsy technology for early detection of multiple cancers, reported that new data from a large-scale study on multi-cancer detection at the 2022 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting in Chicago (Press release, Dxcover, JUN 3, 2022, View Source [SID1234615542]).

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Presented by Dr. Matthew Baker, co-founder and Chief Technology Officer at Dxcover, the results showcase the need for an effective test that accurately identifies patients with non-specific symptoms who have cancer in its earliest stages, while it is still treatable. Dxcover has pioneered the early detection and identification of cancer by employing infrared spectroscopy of circulating pan-omic biomarkers. Its platform combines novel hardware with artificial intelligence algorithms to analyze a patient’s blood and detect the presence or absence of disease.

The study, which recruited 2,094 patients, set out to distinguish cancer from non-cancer, as well as differentiate organ specific detection from other forms of cancer including brain, breast, colorectal, kidney, lung, ovary, pancreas, and prostate. Results from the research, which applied the Dxcover Cancer Liquid Biopsy, proved the importance and impact of early cancer detection. At a 99% specificity the model achieved 64% sensitivity for stage I cancers. For overall cancer classification, the model achieved 90% sensitivity and 61% specificity when tuned for sensitivity. Detection rates were 93% for stage I, 84% for stage II, 92% for stage III and 95% for stage IV.

"Our mission is to lead the way in liquid biopsy detection of cancers to improve survival and overall quality of life. We have successfully completed two groundbreaking studies on earlier diagnosis of brain cancer using the Dxcover platform, and today’s study demonstrates its ability to detect multiple cancers at their earliest stages, which we know is critical in providing the necessary care and treatment while it can be most impactful to patient outcomes," said Dr. Matthew Baker, co-founder and Chief Technology Officer at Dxcover.

Additionally, Dxcover released results from its proof-of-concept study investigating the use of Dxcover’s liquid biopsy as a novel approach for pancreatic cancer, the 7th most deadly cancer worldwide. The study focused on the discrimination between both cancer and control samples, and cancer and symptomatic non-malignant control samples.

Results showed that the two groups were significantly distinguished, achieving up to a sensitivity of 91.0%, specificity of 87.6% and accuracy of 89.3% with PLS-DA, underscoring that early-stage detection of pancreatic cancer would be key in improving prognosis and survival rates of patients in combination with targeted earlier surgery and treatments.

ALX Oncology Announces Evorpacept Clinical Program Updates

On June 3, 2022 ALX Oncology Holdings Inc., ("ALX Oncology") (Nasdaq: ALXO) a clinical-stage immuno-oncology company developing therapies that block the CD47 checkpoint pathway, reported clinical program updates for its lead program, evorpacept, a next generation CD47 blocker (Press release, ALX Oncology, JUN 3, 2022, View Source [SID1234615494]).

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Introducing ASPEN-07, a Phase 1 Trial of Evorpacept for the Treatment of Patients with Urothelial Carcinoma ("UC")

ALX Oncology will initiate a new clinical study, ASPEN-07, to investigate evorpacept in combination with an antibody-drug conjugate ("ADC"), PADCEV (enfortumab vedotin-ejfv), for the treatment of patients with urothelial carcinoma ("UC") in the fourth quarter of 2022.
Enfortumab vedotin-ejfv is an ADC directed to Nectin-4, a protein located on the surface of cells that is highly expressed in UC.
In April 2022, ALX Oncology successfully completed a pre-IND consultation with the U.S. Food and Drug Administration ("FDA") for a Phase 1 study of evorpacept in combination with enfortumab vedotin-ejfv in patients with previously treated locally advanced or metastatic UC.
The IND application for ASPEN-07 was submitted to the FDA in May 2022.
"We continue to pursue strategies to expand the potential value of evorpacept as a cornerstone therapy for the treatment of patients with cancer," said Jaume Pons, Ph.D., Founder, President and Chief Executive Officer of ALX Oncology. "ASPEN-07 further expands our solid tumor investigations and will be the first combination study of evorpacept with an ADC. The addition of evorpacept is expected to enhance the antibody-dependent cellular phagocytosis mediated by enfortumab vedotin-ejfv to improve efficacy in patients with UC without increasing toxicity. Our currently enrolling randomized Phase 2 studies remain a key priority for us in order to maintain ALX Oncology’s leadership position in solid tumors in the CD47 space."

Update of ASPEN-05, a Phase 1 / 2 Clinical Trial of Evorpacept in Combination with Venetoclax and Azacitidine in Acute Myeloid Leukemia ("AML"), and ASPEN-02, a Phase 1/2 Study of Evorpacept in Combination with Azacitidine in Myelodysplastic Syndrome ("MDS")

The Phase 1 dose escalation portion of ASPEN-05 has successfully completed enrollment with no safety concerns to date up to the highest protocol defined dose level of 60 mg/kg evorpacept once every four weeks. This portion of the study is designed to characterize the initial safety of evorpacept in combination with venetoclax and azacitidine for the treatment of patients with relapsed/refractory AML and previously untreated AML who are not candidates for intensive induction therapy.
Patient enrollment will be paused before proceeding into the Phase 1 dose optimization portion of ASPEN-05 pending completion of the Phase 1 portion of ASPEN-02, a Phase 1/2 study of evorpacept in combination with azacitidine in patients with MDS. Data from ASPEN-02 will be used to inform the optimal dose(s) of evorpacept to be studied in the ASPEN-05 study in combination with venetoclax and azacitidine. Ongoing patients in ASPEN-05 will continue to be treated and followed per protocol.
"The decision to pause ASPEN-05 is based on the desire to leverage upcoming dose optimization data from the ASPEN-02 MDS study to effectively inform dose optimization in ASPEN-05," said Sophia Randolph, M.D., Ph.D., Chief Medical Officer of ALX Oncology. "MDS and AML are indications where evorpacept possesses a similar mechanism of action, and this strategy allows us to evaluate evorpacept in a cost-efficient manner in patients with AML while maintaining our focus in our solid tumor programs. We anticipate preliminary dose escalation data from ASPEN-05 to be presented at a scientific conference in 2022, and initial dose optimization data from ASPEN-02 to be presented at a scientific conference in mid-2023."

Update of ASPEN-03 and ASPEN-04, which are two distinct randomized Phase 2 studies for the treatment of patients with advanced head and neck squamous cell carcinoma ("HNSCC")

ALX Oncology continues to advance evorpacept in two randomized Phase 2 studies in patients with HNSCC in combination with KEYTRUDA (pembrolizumab), Merck’s anti-PD-1 therapy, with or without chemotherapy. Both studies are being conducted in collaboration with Merck, known as MSD outside the United States and Canada. The first study, ASPEN-03, is evaluating the efficacy of evorpacept in combination with pembrolizumab for the first-line ("1L") treatment of patients with PD-L1 expressing metastatic or unresectable, recurrent HNSCC with a Combined Positive Score ("CPS") ≥ 1. The second study, ASPEN-04, is investigating evorpacept in combination with pembrolizumab and standard chemotherapy for the 1L treatment of patients with metastatic or unresectable, recurrent HNSCC (any CPS value).
Patient enrollment for ASPEN-03 and ASPEN-04 continues as planned with results expected to be presented by mid-2024.
Update of ASPEN-06, a Phase 2/3 Study of Evorpacept for the Treatment of Patients with Advanced Gastric or Gastroesophageal Junction ("GEJ") Cancer

ASPEN-06 is a randomized Phase 2 (open-label) / Phase 3 (double-blind), international, multi-center study to evaluate the efficacy of evorpacept and CYRAMZA (ramucirumab) added to trastuzumab and paclitaxel for the treatment of patients with HER-positive gastric/GEJ cancer whose tumors have progressed following treatment with HER2-targeted therapy and chemotherapy. ASPEN-06 is being conducted in collaboration with Eli Lilly and Company.
In March 2022, the first patient was dosed in the Phase 2/3 ASPEN-06 study.
Patient enrollment continues to progress and results from the Phase 2 portion of ASPEN-06 are expected to be presented in 2023.