Myeloid Therapeutics Announces SITC 2024 Oral Presentation on MT-303, the First in vivo GPC3 Targeting mRNA CAR in Human Studies for Advanced Hepatocellular Carcinoma (HCC)

On November 8, 2024 Myeloid Therapeutics, Inc. ("Myeloid"), a clinical-stage immunology company advancing RNA therapeutics to conquer cancer, reported an oral presentation at the Society for Immunotherapy in Cancer (SITC) (Free SITC Whitepaper) 2024 annual meeting, occurring November 6 – 10, 2024, in Houston, Texas (Press release, Myeloid Therapeutics, NOV 8, 2024, View Source [SID1234648049]). Dr. Matthew Maurer, Myeloid’s Chief Medical Officer, will present on Myeloid’s discovery and development of MT-303. MT-303 is the Company’s second in vivo mRNA CAR program to enter the clinic from its pipeline of in vivo immune cell programming therapies.

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MT-303 is a first-in-class Glypican-3 (GPC3) targeting CAR encoded from mRNA and encapsulated in lipid nanoparticles. It is currently in a first-in-human Phase 1 clinical trial of advanced hepatocellular carcinoma (HCC). There are limited treatment options to combat HCC.

GPC3 is a target of growing therapeutic interest given its overexpression in many cancers, including the majority of hepatocellular carcinomas, coupled with limited expression in normal tissues. GPC3 expression has been linked to aggressive tumor behavior and poor prognosis.

Myeloid’s treatment approach focuses on selective in vivo programming of immune cell subsets with innovative off-the-shelf mRNA-encoded CAR technologies. These candidates are administered without the need for preconditioning. MT-303 arms myeloid cells with a proprietary chimeric antigen receptor that expresses specifically within myeloid cells. This approach directs and enables myeloid cells to kill GPC3 expressing cancers while orchestrating a coordinated adaptive immune anti-tumor response marked by expansion of new T cell clones.

"Myeloid has rapidly advanced MT-303 into first-in-human testing as our second in vivo CAR clinical program. Dose escalation of MT-303 and MT-302 continues, and we are encouraged by the ongoing biologic indications of proof-of-mechanism, as well as the early observed safety and efficacy experience," said Dr. Matthew Maurer, Chief Medical Officer of Myeloid. "The clinical observations extend the earlier preclinical results, that also demonstrated selective activation of CAR myeloid cells and robust anti-tumor activity in mouse hepatocellular tumor models."

Oral presentation details are as follows:

Abstract #: 1125
Title: "Preclinical Development of MT-303, a Novel LNP-Formulated GPC3-Specific CAR mRNA, for in vivo Programming of Monocytes to Treat Hepatocellular Carcinoma"
Session Title: Protein and Cellular Engineering Strategies
Session Date and Time: Friday, November 8, 2024, 5:10 pm
Presenting Author: Matthew Maurer – Myeloid Therapeutics

For more information, please visit the SITC (Free SITC Whitepaper) 2024 website.

Myeloid’s in vivo programming candidates are designed with proprietary insights to deliver personalized therapy, providing benefits to patients while reducing time and costs through the elimination of ex vivo handling of patient cells and complex neoantigen sequencing. The Myeloid platform integrates validated antibody/antigen binding with novel combinations of myeloid signaling domains, coded within a simple mRNA that can be delivered repeatedly using lipid nanoparticles (LNPs). The platform’s versatility provides a range of signaling domains and immune cell types useful for combination approaches.

About Liver Cancer

With limited treatment options, and over 850,000 new cases diagnosed globally each year, liver cancer has become the third leading cause of cancer death. After initial treatment success with small molecule therapies, the development of new treatment approaches in the field of liver cancer has been limited. Today, patients with liver cancer who are refractory to first line treatment are left with few treatment options, creating a substantial unmet medical need. Myeloid sees an opportunity to make a significant contribution to address this need, by providing a new CAR for these patients who are living with liver cancer. The CARs are capable of providing a coordinated and durable immune response to counter advanced disease. The CARs are combinable and will expand the treatment options for physicians.

About the Phase 1 Study of MT-303

The MT-303 Phase 1 study (NCT06478693) is an open-label dose escalation study to investigate the safety, pharmacokinetics, pharmacodynamics, and preliminary efficacy of MT-303 in adults with advanced or metastatic hepatocellular carcinoma that overexpresses GPC3. This study will also define the recommended Phase 2 dose (RP2D) of MT-303.

About MT-303

MT-303 represents the first candidate in a new therapeutic modality targeting hepatocellular carcinoma (HCC). This clinical candidate is a first-in-class, GPC3-FcA-LNP, with a strong preclinical profile supporting its advance into this first-in-human trial. GPC3 is overexpressed in most human hepatocellular carcinomas, with limited expression in corresponding normal tissues. Increased GPC3 expression has been linked to tumor growth.

Treatment with MT-303 as a monotherapy demonstrates activity in a GPC3/HCC preclinical model, confirming the tumor-fighting potency of programmed myeloid cells even in the model’s absence of T cells. MT-303 has demonstrated strong expression in myeloid cells and a favorable safety profile in rodents and non-human primates. Unlike other therapies, MT-303 brings the potential advantages of eliciting a full immune response by also presenting tumor neoantigen to stimulate T cells.

MT-303 represents Myeloid’s second in vivo CAR clinical program, building on the company’s innovative approach to cancer treatment through immune cell programming.

Infinitopes to Showcase Breakthroughs on Cancer Vaccine Development at SITC 2024: Insight into a double-blind, Phase I/IIa clinical trial

On November 8, 2024 Infinitopes, an integrated cancer biotech combining world leading platforms in precision antigen discovery with vaccine vectors capable of durably stimulating protective immune responses, reported that it will be presenting three posters on its pioneering cancer vaccine discovery and development, including one that has been recognised as a ‘top 100’ poster presentation, at the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) 2024, held in Houston, US, from 6-10th November (Press release, Infinitopes, NOV 8, 2024, View Source [SID1234648048]).

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A spinout from Oxford University, supported by Cancer Research UK (CRUK), Infinitopes announced its oversubscribed £12.8 million seed financing in April 2024, to advance its AI/ML Precision ImmunomicsTM antigen discovery platform. The Company exploits this technology to accurately design ‘best-in-class’ therapeutics for multiple cancer indications. Led by an exceptional Scientific Advisory Board (SAB) and world-class team of clinicians, scientists, and regulatory leaders, Infinitopes is poised to commence its lead vaccine candidate ITOP1 in a highly anticipated, double-blind, randomised, placebo-controlled phase I/IIa clinical trial, starting H1’25 at four UK NHS university cancer centres, to treat patients with oesophageal cancer (OC).

Jonathan Kwok, Chief Executive Officer & Co-Founder at Infinitopes, said: "Using our integrated ‘right targets, right vectors, right patients, right time’ approach, we aim to address the unmet clinical need for durably effective, accessible therapies, to save lives by preventing or significantly delaying disease recurrence for cancer patients. We combine our deep knowledge of the field of immunology with our uniquely sensitive AI/ML Precision ImmunomicsTM platform to identify and select optimal synergistic tumour targets, alongside engineering safe and effective proprietary vector delivery systems, designed to reliably stimulate lasting T-cell protection. With our expert capabilities and highly experienced team, our strategy to win an Innovation & Licensing Access Pathway (ILAP) innovation passport from the UK’s Medicines & Healthcare products Regulatory Agency (MHRA) has unlocked rapid entry into an ambitious clinical development programme for our lead vaccine candidate, ITOP1. The VISTA study, commencing H1’25, will open to oesophageal cancer patients most likely to positively respond, at the moment of their cancer journey where long-term protection is anticipated to be most likely."

Abstract One, number 635 is titled ‘A randomised, placebo-controlled, multi-centre Phase I/IIa study evaluating the safety and clinical activity of a novel viral vector cancer vaccine (ITOP1) in patients with resectable oesophageal adenocarcinoma (VISTA study)’. It details the overall design and purpose of the Oxford University-led VISTA study, to test Infinitopes’ ITOP1 vaccine in HLA-matched patients undergoing surgery to remove their oesophageal cancers (OC). ITOP1 is an "off-the-shelf" vaccine administered as a prime-boost regimen before and after surgery, to prevent recurrence for patients with OC. OC is the 12th most common type of cancer in the UK, with about 10,000 cases a year. Due to its poor prognosis OC is the UK’s sixth most common cause of cancer deaths, claiming around 8,500 lives annually. Surgical resection plus neoadjuvant/adjuvant chemotherapy is the current best standard of care. Nearly half of those patients undergoing this ‘curative’ surgery suffer recurrence even after best standard of care; with a median disease-free survival of 11 months.

Abstract Two, number 1039 recognised as a ‘top 100’ SITC (Free SITC Whitepaper) poster, is titled ‘Vaccination with a single dose of a novel delivery platform confers durable >8 month immune responses, with lasting protection against tumour and metastases in preclinical models’. It details how Infinitopes has developed a foundational, proprietary vector delivery system and confirmed the success of this approach in industry-standard preclinical models. Immunisation with a single priming dose reliably generated durable, antigen-specific immune T-cell protection, capable of halting or significantly delaying tumour progression, without checkpoint inhibitor co-treatment. Up to 80% of mice survived tumour challenge, versus control animals dying within three weeks. Metastases were completely suppressed in multiple models.

Abstract Three, number 1427 is titled ‘Precision ImmunomicsTM: Identification of hundreds of novel cancer antigens using a sensitive immunopeptidomics-led platform’. It details how Infinitopes has used its unique AI/ML Precision ImmunomicsTM antigen discovery platform to identify hundreds of novel cancer-specific antigens from primary tumour samples. The abstract explains how this best-in-class pool of therapeutic combination targets could be used to accurately treat tumours, forming the basis for a suite of "off-the-shelf" therapies for many different cancer types. Infinitopes has begun discussions with potential Big Pharma collaboration partners to licence these for use in T-cell, TCR and other modalities, and is excited to progress its own vaccine programme.

Prof. David Curiel, Professor of Radiation Oncology and Director of the Biologic Therapeutic Centre at Washington University St Louis., commented: "Infinitopes’ systematic approach to cancer vaccine development is making rapid and substantive progress. This week’s findings support acceleration towards clinical development. Infinitopes’ lead candidate ITOP1 represents a significant milestone for the Company, and is a potential treatment paradigm change for the early and effective treatment of future patients with cancerous tumours, beginning with oesophageal cancer."

Details of the poster presentations are as follows:

Poster Title: A randomised, placebo-controlled, multi-centre Phase I/IIa study evaluating the safety and clinical activity of a novel viral vector cancer vaccine (ITOP1) in patients with resectable oesophageal adenocarcinoma (VISTA study)
Abstract Number: 635
Primary Category: Clinical Trials in Progress
Presenting Author: Michael Grant, Executive Medical Director at Infinitopes
Date & Time: Friday 8 November 2024, 9am – 7pm CDT
Abstract Authors: Michael Grant¹, Jonathan Kwok¹, Paul Smith¹, Lian Ni Lee¹, Senthil Chinnakannan¹, Orion Tong¹, David Thompson², Paul Klenerman², Nicola Ternette² and Mark Middleton²

¹ Infinitopes, Oxford, UK, ² University of Oxford, Oxford, UK

Poster Title: Vaccination with a single dose of a novel delivery platform confers durable >8 month immune responses, with lasting protection against tumour and metastases in preclinical models
Abstract Number: 1039
Primary Category: Immune-Stimulants and Immune Modulators
Presenting Author: Lian Lee, VP Preclinical & Co-Founder at Infinitopes
Date & Time: Friday 8 November 2024, 9am – 7pm CDT
Abstract Authors: Lian Ni Lee1, Jonathan Kwok1, Anna Maria Theresa Kroon2, Senthil Chinnakannan1, Spyridoula Marinou1, Annemieke Kok1, Callum Beach1, Steve John1, Tim Davies1, Andrew Highton2, Catherine de Lara2, Claire Hutchings2, Robert Parker1, Silvia Salatino2, Orion Tong1, Nicola Ternette2, Uzi Gileadi2, Paul Klenerman2

¹ Infinitopes, Oxford, UK, ² University of Oxford, Oxford, UK

Poster Title: Precision ImmunomicsTM: Identification of hundreds of novel cancer antigens using a sensitive immunopeptidomics-led platform
Abstract Number: 1427
Primary Category: Antigen Presentation
Presenting Author: Georges Bedran, Senior Scientist & Computational Immunomics Lead at Infinitopes
Date & Time: Friday 8 November 2024, 9am – 7pm CDT
Abstract Authors: Yuxin Sun¹, Nil Adell Mill¹, Tiffany Ma¹, Yves du Toit¹, Ava Van Ess¹, Chloe Hyun-Jung Lee¹, Spyridoula Marinou¹, Annemieke ten Bokum¹, May Ke¹, Oliver Turnbull¹, Luke Heirene¹, Lian Ni Lee¹, Alexey I. Nesvizhskii², Pouya Faridi³, Paul Klenerman⁴, Jonathan Kwok¹, Orion Tong¹, Robert Parker¹ and Georges Bedran

Dizal Submits New Drug Application to the U.S. FDA for Sunvozertinib in Treating Relapsed or Refractory Non-Small Cell Lung Cancer with EGFR Exon 20 Insertion Mutations

On November 8, 2024 Dizal (SSE:688192), a biopharmaceutical company committed to developing novel medicines for the treatment of cancer and immunological diseases, announced today the submission of a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA) seeking approval of sunvozertinib for the treatment of locally advanced or metastatic non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) exon 20 insertion mutations (exon20ins), as detected by an FDA-approved test, whose disease has progressed on or after platinum-based chemotherapy (Press release, Dizal Pharma, NOV 8, 2024, View Source [SID1234648047]).

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Previously, sunvozertinib received accelerated approval in China, making it the world’s first and only oral drug for NSCLC patients with EGFR exon20ins. It has also been granted Breakthrough Therapy Designations (BTDs) by both the U.S. FDA and the China Center for Drug Evaluation (CDE) for treating EGFR exon20ins NSCLC.

The submission is supported by results from the WU-KONG1 Part B study, a multinational pivotal study investigating the efficacy and safety of sunvozertinib in relapsed or refractory EGFR exon20ins NSCLC patients from Asia, Europe, North America, and South America. Sunvozertinib met the primary endpoint by demonstrating statistically significant and clinically meaningful objective response rate (ORR), as assessed by an independent review committee (IRC), while maintaining a manageable safety profile. Data from the study were presented in an oral session at the 2024 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting.

"We are encouraged by the potential of sunvozertinib as a single oral agent to improve outcomes for patients with EGFR exon20ins NSCLC." said Xiaolin Zhang, PhD, CEO of Dizal. "The filing for approval of sunvozertinib marks Dizal’s first NDA submission to the FDA, which represents an important step forward as we continue our efforts to address unmet medical needs globally. We look forward to working closely with the FDA on their review of our application."

Lung cancer is the leading cause of cancer incidence and mortality worldwide. NSCLC accounts for approximately 80%-85% of all lung cancers. Patients with NSCLC harboring EGFR exon20ins are reported to have poorer prognosis than those with other EGFR sensitizing mutations. Sunvozertinib, with its innovatively designed molecular structure, provides enhanced efficacy, safety, and ease of administration.

About sunvozertinib (DZD9008)

Sunvozertinib is an irreversible EGFR inhibitor discovered by Dizal scientists targeting a wide spectrum of EGFR mutations with wild-type EGFR selectivity. In August 2023, sunvozertinib received approval from NMPA to treat advanced NSCLC with EGFR exon20ins after platinum-based chemotherapies. The approval is based on the results of WU-KONG6 study, the pivotal study of sunvozertinib in platinum-based chemotherapy pretreated NSCLC with EGFR exon20ins. The primary endpoint of the study was the confirmed overall response rate (cORR) as assessed by the Independent Review Committee (IRC) reached 60.8%. Anti-tumor efficacy was observed across a broad range of EGFR exon20ins subtypes, and in patients with pretreated and stable brain metastasis. In addition, sunvozertinib also demonstrated encouraging anti-tumor activity in NSCLC patients with EGFR sensitizing, T790M, and uncommon mutations (such as G719X, L861Q, etc.), as well as HER2 exon20ins.

Sunvozertinib showed a well-tolerated and manageable safety profile in the clinic. The most common drug-related TEAEs (treatment-emergent adverse event) were Grade 1/2 in nature and clinically manageable.

Two global pivotal studies are ongoing in ≥ 2nd line (WU-KONG1 Part B) and 1st line setting (WU-KONG28), respectively, in NSCLC patients with EGFR exon20ins.

Pre-clinical and clinical results of sunvozertinib were published in peer-reviewed journals Cancer Discovery and The Lancet Respiratory Medicine.

Johnson & Johnson submits applications in the U.S. and EU seeking approval of DARZALEX FASPRO® / DARZALEX® as subcutaneous monotherapy for high-risk smoldering multiple myeloma

On November 8, 2024 Johnson & Johnson (NYSE:JNJ) reported the submission of regulatory applications to the U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA) seeking approval of a new indication for DARZALEX FASPRO (daratumumab and hyaluronidase-fihj) in the U.S. and DARZALEX subcutaneous (SC) formulation in the European Union (EU) (Press release, Johnson & Johnson, NOV 8, 2024, View Source;johnson-submits-applications-in-the-us-and-eu-seeking-approval-of-darzalex-faspro–darzalex-as-subcutaneous-monotherapy-for-high-risk-smoldering-multiple-myeloma-302299496.html [SID1234648046]). The applications are supported by data from the ongoing Phase 3 AQUILA study (NCT03301220) of DARZALEX FASPRO as monotherapy for the treatment of adult patients with high-risk smoldering multiple myeloma.1

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Smoldering multiple myeloma is an early precursor of active multiple myeloma, where abnormal cells can be detected in the bone marrow, but patients are typically asymptomatic.2 Fifteen percent of all cases of newly diagnosed multiple myeloma are classified as smoldering multiple myeloma, and half of those diagnosed with high-risk disease will progress to active multiple myeloma within two years.3 Currently, smoldering multiple myeloma is not generally treated until active multiple myeloma develops. Instead, the standard approach is observation to track the disease for signs of biochemical progression and/or end organ damage, when treatment tends to be initiated.2 Recent evidence suggests that those at high-risk for progression to active multiple myeloma could benefit from earlier therapeutic intervention.4

"There remains an unmet need for early interventions and treatments that are both effective and well tolerated in people living with smoldering multiple myeloma at high-risk of progressing to active multiple myeloma," said Yusri Elsayed, M.D., M.H.Sc., Ph.D. Global Therapeutic Area Head, Oncology, Innovative Medicine, Johnson & Johnson. "DARZALEX has changed the standard of care in multiple myeloma, and with these submissions to the FDA and EMA, this therapy could become the first approved treatment for patients with high-risk smoldering multiple myeloma, potentially shifting the treatment paradigm."

The first data from the AQUILA study, evaluating the safety and efficacy of DARZALEX FASPRO compared to active monitoring in participants with high-risk smoldering multiple myeloma, will be presented at the 2024 American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting, taking place in San Diego from December 7-10.4

About the AQUILA Study
AQUILA (NCT03301220) is a randomized, multicenter Phase 3 study investigating DARZALEX FASPRO versus active monitoring in patients (n=390) with high-risk smoldering multiple myeloma.1 The primary endpoint is progression free survival and secondary endpoints include time to progression, overall response rate and overall survival.1 Patients in the study were diagnosed with smoldering multiple myeloma in the last five years and were excluded if they had prior exposure to approved or investigational treatments for smoldering multiple myeloma or multiple myeloma.1

About Smoldering Multiple Myeloma
Smoldering multiple myeloma is an asymptomatic precursor state to multiple myeloma. Patients with smoldering multiple myeloma have higher levels of abnormal plasma cells in the bone marrow and an elevated monoclonal protein (M-protein) level in the blood, but they do not yet exhibit the symptoms commonly associated with active multiple myeloma, particularly end-organ damage. Fifteen percent of all cases of newly diagnosed multiple myeloma are classified as smoldering multiple myeloma, and half of those diagnosed with high-risk disease will progress to active multiple myeloma within two years.3

About Multiple Myeloma
Multiple myeloma is a blood cancer that affects a type of white blood cell called plasma cells, which are found in the bone marrow.5 In multiple myeloma, these malignant plasma cells proliferate and replace normal cells in the bone marrow.6 Multiple myeloma is the second most common blood cancer worldwide and remains an incurable disease.7 In 2024, it is estimated that more than 35,000 people will be diagnosed with multiple myeloma in the U.S. and more than 12,000 will die from the disease.8 People with multiple myeloma have a 5-year survival rate of 59.8 percent.8 While some people diagnosed with multiple myeloma initially have no symptoms, most patients are diagnosed due to symptoms that can include bone fracture or pain, low red blood cell counts, tiredness, high calcium levels, kidney problems or infections.9,10

About DARZALEX FASPRO and DARZALEX
DARZALEX FASPRO (daratumumab and hyaluronidase-fihj) received U.S. FDA approval in May 2020 and is approved for nine indications in multiple myeloma, four of which are for frontline treatment in newly diagnosed patients who are transplant eligible or ineligible.11 It is the only subcutaneous CD38-directed antibody approved to treat patients with multiple myeloma. DARZALEX FASPRO is co-formulated with recombinant human hyaluronidase PH20 (rHuPH20), Halozyme’s ENHANZE drug delivery technology.

DARZALEX (daratumumab) received U.S. FDA approval in November 2015 and is approved in eight indications, three of which are in the frontline setting, including newly diagnosed patients who are transplant-eligible and ineligible.12

DARZALEX is the first CD38-directed antibody approved to treat multiple myeloma.12 DARZALEX-based regimens have been used in the treatment of more than 518,000 patients worldwide and more than 68,000 patients in the U.S. alone.

In August 2012, Janssen Biotech, Inc. and Genmab A/S entered a worldwide agreement, which granted Janssen an exclusive license to develop, manufacture and commercialize daratumumab.

For more information, visit www.DARZALEX.com.

DARZALEX FASPRO INDICATIONS AND IMPORTANT SAFETY INFORMATION

INDICATIONS

DARZALEX FASPRO (daratumumab and hyaluronidase-fihj) is indicated for the treatment of adult patients with multiple myeloma:

In combination with bortezomib, lenalidomide, and dexamethasone for induction and consolidation in newly diagnosed patients who are eligible for autologous stem cell transplant
In combination with bortezomib, melphalan, and prednisone in newly diagnosed patients who are ineligible for autologous stem cell transplant
In combination with lenalidomide and dexamethasone in newly diagnosed patients who are ineligible for autologous stem cell transplant and in patients with relapsed or refractory multiple myeloma who have received at least one prior therapy
In combination with bortezomib, thalidomide, and dexamethasone in newly diagnosed patients who are eligible for autologous stem cell transplant
In combination with pomalidomide and dexamethasone in patients who have received at least one prior line of therapy including lenalidomide and a proteasome inhibitor (PI)
In combination with carfilzomib and dexamethasone in patients with relapsed or refractory multiple myeloma who have received one to three prior lines of therapy
In combination with bortezomib and dexamethasone in patients who have received at least one prior therapy
As monotherapy in patients who have received at least three prior lines of therapy including a PI and an immunomodulatory agent or who are double refractory to a PI and an immunomodulatory agent
IMPORTANT SAFETY INFORMATION

CONTRAINDICATIONS
DARZALEX FASPRO is contraindicated in patients with a history of severe hypersensitivity to daratumumab, hyaluronidase, or any of the components of the formulation.

WARNINGS AND PRECAUTIONS

Hypersensitivity and Other Administration Reactions
Both systemic administration-related reactions, including severe or life-threatening reactions, and local injection-site reactions can occur with DARZALEX FASPRO. Fatal reactions have been reported with daratumumab-containing products, including DARZALEX FASPRO.

Systemic Reactions
In a pooled safety population of 1249 patients with multiple myeloma (N=1056) or light chain (AL) amyloidosis (N=193) who received DARZALEX FASPRO as monotherapy or in combination, 7% of patients experienced a systemic administration-related reaction (Grade 2: 3.2%, Grade 3: 0.7%, Grade 4: 0.1%). Systemic administration-related reactions occurred in 7% of patients with the first injection, 0.2% with the second injection, and cumulatively 1% with subsequent injections. The median time to onset was 2.9 hours (range: 5 minutes to 3.5 days). Of the 165 systemic administration-related reactions that occurred in 93 patients, 144 (87%) occurred on the day of DARZALEX FASPRO administration. Delayed systemic administration-related reactions have occurred in 1% of the patients.

Severe reactions included hypoxia, dyspnea, hypertension, tachycardia, and ocular adverse reactions, including choroidal effusion, acute myopia, and acute angle closure glaucoma. Other signs and symptoms of systemic administration-related reactions may include respiratory symptoms, such as bronchospasm, nasal congestion, cough, throat irritation, allergic rhinitis, and wheezing, as well as anaphylactic reaction, pyrexia, chest pain, pruritus, chills, vomiting, nausea, hypotension, and blurred vision.

Pre-medicate patients with histamine-1 receptor antagonist, acetaminophen, and corticosteroids. Monitor patients for systemic administration-related reactions, especially following the first and second injections. For anaphylactic reaction or life-threatening (Grade 4) administration-related reactions, immediately and permanently discontinue DARZALEX FASPRO. Consider administering corticosteroids and other medications after the administration of DARZALEX FASPRO depending on dosing regimen and medical history to minimize the risk of delayed (defined as occurring the day after administration) systemic administration-related reactions.

Ocular adverse reactions, including acute myopia and narrowing of the anterior chamber angle due to ciliochoroidal effusions with potential for increased intraocular pressure or glaucoma, have occurred with daratumumab-containing products. If ocular symptoms occur, interrupt DARZALEX FASPRO and seek immediate ophthalmologic evaluation prior to restarting DARZALEX FASPRO.

Local Reactions
In this pooled safety population, injection-site reactions occurred in 7% of patients, including Grade 2 reactions in 0.8%. The most frequent (>1%) injection-site reaction was injection-site erythema. These local reactions occurred a median of 5 minutes (range: 0 minutes to 6.5 days) after starting administration of DARZALEX FASPRO. Monitor for local reactions and consider symptomatic management.

Neutropenia
Daratumumab may increase neutropenia induced by background therapy. Monitor complete blood cell counts periodically during treatment according to manufacturer’s prescribing information for background therapies. Monitor patients with neutropenia for signs of infection. Consider withholding DARZALEX FASPRO until recovery of neutrophils. In lower body weight patients receiving DARZALEX FASPRO, higher rates of Grade 3-4 neutropenia were observed.

Thrombocytopenia
Daratumumab may increase thrombocytopenia induced by background therapy. Monitor complete blood cell counts periodically during treatment according to manufacturer’s prescribing information for background therapies. Consider withholding DARZALEX FASPRO until recovery of platelets.

Embryo-Fetal Toxicity
Based on the mechanism of action, DARZALEX FASPRO can cause fetal harm when administered to a pregnant woman. DARZALEX FASPRO may cause depletion of fetal immune cells and decreased bone density. Advise pregnant women of the potential risk to a fetus. Advise females with reproductive potential to use effective contraception during treatment with DARZALEX FASPRO and for 3 months after the last dose.

The combination of DARZALEX FASPRO with lenalidomide, thalidomide, or pomalidomide is contraindicated in pregnant women because lenalidomide, thalidomide, and pomalidomide may cause birth defects and death of the unborn child. Refer to the lenalidomide, thalidomide, or pomalidomide prescribing information on use during pregnancy.

Interference With Serological Testing
Daratumumab binds to CD38 on red blood cells (RBCs) and results in a positive indirect antiglobulin test (indirect Coombs test). Daratumumab-mediated positive indirect antiglobulin test may persist for up to 6 months after the last daratumumab administration. Daratumumab bound to RBCs masks detection of antibodies to minor antigens in the patient’s serum. The determination of a patient’s ABO and Rh blood type are not impacted.

Notify blood transfusion centers of this interference with serological testing and inform blood banks that a patient has received DARZALEX FASPRO. Type and screen patients prior to starting DARZALEX FASPRO.

Interference With Determination of Complete Response
Daratumumab is a human immunoglobulin G (IgG) kappa monoclonal antibody that can be detected on both the serum protein electrophoresis (SPE) and immunofixation (IFE) assays used for the clinical monitoring of endogenous M-protein. This interference can impact the determination of complete response and of disease progression in some DARZALEX FASPRO-treated patients with IgG kappa myeloma protein.

ADVERSE REACTIONS
In multiple myeloma, the most common adverse reaction (≥20%) with DARZALEX FASPRO monotherapy is upper respiratory tract infection. The most common adverse reactions with combination therapy (≥20% for any combination) include fatigue, nausea, diarrhea, dyspnea, insomnia, headache, pyrexia, cough, muscle spasms, back pain, vomiting, hypertension, upper respiratory tract infection, peripheral sensory neuropathy, constipation, pneumonia, and peripheral edema.

The most common hematology laboratory abnormalities (≥40%) with DARZALEX FASPRO are decreased leukocytes, decreased lymphocytes, decreased neutrophils, decreased platelets, and decreased hemoglobin.

Please click here to see the full Prescribing Information for DARZALEX FASPRO.

DARZALEX INDICATIONS AND IMPORTANT SAFETY INFORMATION

INDICATIONS

DARZALEX (daratumumab) is indicated for the treatment of adult patients with multiple myeloma:

In combination with bortezomib, melphalan, and prednisone in newly diagnosed patients who are ineligible for autologous stem cell transplant
In combination with lenalidomide and dexamethasone in newly diagnosed patients who are ineligible for autologous stem cell transplant and in patients with relapsed or refractory multiple myeloma who have received at least one prior therapy
In combination with bortezomib, thalidomide, and dexamethasone in newly diagnosed patients who are eligible for autologous stem cell transplant
In combination with pomalidomide and dexamethasone in patients who have received at least one prior line of therapy including lenalidomide and a proteasome inhibitor
In combination with carfilzomib and dexamethasone in patients with relapsed or refractory multiple myeloma who have received one to three prior lines of therapy
In combination with bortezomib and dexamethasone in patients who have received at least one prior therapy
As monotherapy in patients who have received at least three prior lines of therapy including a proteasome inhibitor (PI) and an immunomodulatory agent or who are double-refractory to a PI and an immunomodulatory agent
CONTRAINDICATIONS
DARZALEX is contraindicated in patients with a history of severe hypersensitivity (eg, anaphylactic reactions) to daratumumab or any of the components of the formulation.

WARNINGS AND PRECAUTIONS

Infusion-Related Reactions
DARZALEX can cause severe and/or serious infusion-related reactions including anaphylactic reactions. These reactions can be lifethreatening, and fatal outcomes have been reported. In clinical trials (monotherapy and combination: N=2066), infusion-related reactions occurred in 37% of patients with the Week 1 (16 mg/kg) infusion, 2% with the Week 2 infusion, and cumulatively 6% with subsequent infusions. Less than 1% of patients had a Grade 3/4 infusion-related reaction at Week 2 or subsequent infusions. The median time to onset was 1.5 hours (range: 0 to 73 hours). Nearly all reactions occurred during infusion or within 4 hours of completing DARZALEX. Severe reactions have occurred, including bronchospasm, hypoxia, dyspnea, hypertension, tachycardia, headache, laryngeal edema, pulmonary edema, and ocular adverse reactions, including choroidal effusion, acute myopia, and acute angle closure glaucoma. Signs and symptoms may include respiratory symptoms, such as nasal congestion, cough, throat irritation, as well as chills, vomiting, and nausea. Less common signs and symptoms were wheezing, allergic rhinitis, pyrexia, chest discomfort, pruritus, hypotension and blurred vision.

When DARZALEX dosing was interrupted in the setting of ASCT (CASSIOPEIA) for a median of 3.75 months (range: 2.4 to 6.9 months), upon re-initiation of DARZALEX, the incidence of infusion-related reactions was 11% for the first infusion following ASCT. Infusion-related reactions occurring at re-initiation of DARZALEX following ASCT were consistent in terms of symptoms and severity (Grade 3 or 4: <1%) with those reported in previous studies at Week 2 or subsequent infusions. In EQUULEUS, patients receiving combination treatment (n=97) were administered the first 16 mg/kg dose at Week 1 split over two days, ie, 8 mg/kg on Day 1 and Day 2, respectively. The incidence of any grade infusion-related reactions was 42%, with 36% of patients experiencing infusion-related reactions on Day 1 of Week 1, 4% on Day 2 of Week 1, and 8% with subsequent infusions.

Pre-medicate patients with antihistamines, antipyretics, and corticosteroids. Frequently monitor patients during the entire infusion. Interrupt DARZALEX infusion for reactions of any severity and institute medical management as needed. Permanently discontinue DARZALEX therapy if an anaphylactic reaction or life-threatening (Grade 4) reaction occurs and institute appropriate emergency care. For patients with Grade 1, 2, or 3 reactions, reduce the infusion rate when re-starting the infusion.

To reduce the risk of delayed infusion-related reactions, administer oral corticosteroids to all patients following DARZALEX infusions. Patients with a history of chronic obstructive pulmonary disease may require additional post-infusion medications to manage respiratory complications. Consider prescribing short- and long-acting bronchodilators and inhaled corticosteroids for patients with chronic obstructive pulmonary disease.

Ocular adverse reactions, including acute myopia and narrowing of the anterior chamber angle due to ciliochoroidal effusions with potential for increased intraocular pressure or glaucoma, have occurred with DARZALEX infusion. If ocular symptoms occur, interrupt DARZALEX infusion and seek immediate ophthalmologic evaluation prior to restarting DARZALEX.

Interference With Serological Testing
Daratumumab binds to CD38 on red blood cells (RBCs) and results in a positive indirect antiglobulin test (indirect Coombs test). Daratumumab-mediated positive indirect antiglobulin test may persist for up to 6 months after the last daratumumab infusion. Daratumumab bound to RBCs masks detection of antibodies to minor antigens in the patient’s serum. The determination of a patient’s ABO and Rh blood type is not impacted. Notify blood transfusion centers of this interference with serological testing and inform blood banks that a patient has received DARZALEX. Type and screen patients prior to starting DARZALEX.

Neutropenia and Thrombocytopenia
DARZALEX may increase neutropenia and thrombocytopenia induced by background therapy. Monitor complete blood cell counts periodically during treatment according to manufacturer’s prescribing information for background therapies. Monitor patients with neutropenia for signs of infection. Consider withholding DARZALEX until recovery of neutrophils or for recovery of platelets.

Interference With Determination of Complete Response
Daratumumab is a human immunoglobulin G (IgG) kappa monoclonal antibody that can be detected on both the serum protein electrophoresis (SPE) and immunofixation (IFE) assays used for the clinical monitoring of endogenous M-protein. This interference can impact the determination of complete response and of disease progression in some patients with IgG kappa myeloma protein.

Embryo-Fetal Toxicity
Based on the mechanism of action, DARZALEX can cause fetal harm when administered to a pregnant woman. DARZALEX may cause depletion of fetal immune cells and decreased bone density. Advise pregnant women of the potential risk to a fetus. Advise females with reproductive potential to use effective contraception during treatment with DARZALEX and for 3 months after the last dose.

The combination of DARZALEX with lenalidomide, pomalidomide, or thalidomide is contraindicated in pregnant women because lenalidomide, pomalidomide, and thalidomide may cause birth defects and death of the unborn child. Refer to the lenalidomide, pomalidomide, or thalidomide prescribing information on use during pregnancy.

ADVERSE REACTIONS
The most frequently reported adverse reactions (incidence ≥20%) were: upper respiratory infection, neutropenia, infusionrelated reactions, thrombocytopenia, diarrhea, constipation, anemia, peripheral sensory neuropathy, fatigue, peripheral edema, nausea, cough, pyrexia, dyspnea, and asthenia. The most common hematologic laboratory abnormalities (≥40%) with DARZALEX are: neutropenia, lymphopenia, thrombocytopenia, leukopenia, and anemia.

Please click here to see the full Prescribing Information for DARZALEX.

Nammi Therapeutics, Inc. Announces First Patient Dosed with QXL138AM in a Phase 1 Study Evaluating Advanced Solid Tumors and Multiple Myeloma

On November 8, 2024 Nammi Therapeutics, Inc. (Nammi), a clinical stage immuno-oncology company with a diverse pipeline created with the Masked-Immunocytokine (MIC) and Nammisome platforms, reported dosing of the first patient in the first in human Phase 1 trial (NCT06582017) (Press release, Nammi Therapeutics, NOV 8, 2024, View Source [SID1234648045]).

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The Phase 1 study is a two-part, open-label multi-center study that is expected to enroll approximately 100 patients with advanced CD138-expressing cancers. Part A of the study will evaluate the safety and tolerability of escalating doses of QXL138AM, with secondary endpoints assessing pharmacokinetics and immunogenicity. Part B of the study will involve dose expansion in three cohorts (two solid tumor indications with high CD138 prevalence and multiple myeloma) with primary endpoints focused on safety and tolerability and secondary endpoints assessing anti-tumor activity. The Company will conduct the Phase 1 study at investigator sites across the United States.

While the two solid tumor indications for expansion have not yet been determined, QXL138AM has been granted Orphan Drug Designation in Pancreatic Cancer. Other factors, including prevalence of CD138 expression, preclinical efficacy, previous reports on clinical efficacy with approved Interferon alfa therapeutics, the extent of unmet need, and Nammi’s clinical experience in Part A will also be used to determine the solid tumor indications for expansion.

"Interferon alpha 2 is a potent anti-cancer therapeutic, but its clinical benefit is limited by significant toxicity when administered systematically. QXL138AM utilizes Nammi’s masked immunocytokine technology, whereby the interferon alpha 2 is masked and fused to a tumor-targeting antibody. The antibody anchors QXL138AM on the surface of tumor cells where proteases can remove the mask thereby activating the Interferon alpha 2, facilitating a wider therapeutic window," said Dr. Dennis Kim, M.D., chief medical officer for the study.

"We’re very excited to have dosed the first patient with QXL138AM here at START," stated Dr. Drew W. Rasco, Associate Director at The START Center for Cancer Research in San Antonio, TX. "We believe that there is significant potential with Nammi’s immunocytokine technology in the treatment of multiple cancer types, and we look forward to working with the Nammi team to develop this new therapy over the coming years."