Legend Biotech Shares Data on the Earliest Use to Date of CARVYKTI® in the Treatment of Multiple Myeloma and Important Subgroup Analyses at ASCO and EHA

On June 3, 2024 Legend Biotech Corporation (NASDAQ: LEGN) (Legend Biotech), a global leader in cell therapy, reported results for the first time from the Phase 2 CARTITUDE-2 Cohort D study in multiple myeloma patients (Press release, Legend Biotech, JUN 3, 2024, View Source [SID1234644051]). Results showed patients with less than a complete response (CR) after front-line autologous stem cell transplant (ASCT) experienced deep and durable responses following a single infusion of CARVYKTI (ciltacabtagene autoleucel; cilta-cel) with or without lenalidomide maintenance.1 These data were presented as an oral presentation at the 2024 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting (Abstract #7505) and will also be shared as an encore oral presentation at the 2024 European Hematology Association (EHA) (Free EHA Whitepaper) Congress (Abstract #S205).1 CARVYKTI is the first and only B-cell maturation antigen (BCMA)-targeted therapy approved for the treatment of patients with relapsed/refractory multiple myeloma as early as after first relapse.

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"Patients who achieve a less than complete response following ASCT may experience less durable response with future treatments," said Melissa Alsina, M.D., Head Myeloma BMT-CI Program, H. Lee Moffitt Cancer Center, and Research Institute. The outcomes from this study showed encouraging efficacy results and indicated the potential benefit of CARVYTKI in this patient population." ‡

At a median follow-up of 22 months, patients treated with CARVYKTI (n=17) demonstrated a 94% (n=16/17) overall response rate (ORR) with all 16 patients achieving a CR or better.1 Of the 15 minimal residual disease (MRD)-evaluable patients, 80% achieved MRD negativity at the 10–5 threshold.1 The median duration of response (mDOR) was not reached (NR) and the median time to first response was one month.1 Eighteen-month progression-free survival (PFS) and overall survival (OS) rates were 94% each.

Safety signals were consistent with the known safety profile of CARVYKTI.1 All patients had grade 3 or 4 treatment emergent adverse events (TEAEs) including neutropenia (94%), lymphopenia (65%), thrombocytopenia (47%), leukopenia (41%), infections (71%), or CRS (82%; median onset of 8 days).1 One patient had a secondary malignancy of grade 3 myelodysplastic syndromes (MDS). No cases of movement and neurocognitive treatment-emergent adverse events (MNTs)/parkinsonism were observed.1

"We are excited to unveil these results from our CARTITUDE-2 Cohort D study which show the significant impact of CARVYKTI on multiple myeloma patients in the earliest treatment setting to date," said Mythili Koneru, M.D., Ph.D., Chief Medical Officer of Legend Biotech. "We believe CARVYKTI may produce deep and durable responses earlier in the multiple myeloma treatment paradigm, so we are conducting Phase 3 studies to determine if patients will benefit from CARVYKTI as early as frontline treatment."

CARTITUDE-4: Results of a subgroup analysis show CARVYKTI improved progression-free survival versus standard therapy for patients with functional high-risk multiple myeloma (Abstract #7504)

CARTITUDE-4 is a Phase 3 study evaluating CARVYKTI vs two standard of care therapies of pomalidomide, bortezomib, and dexamethasone (PVd) or daratumumab, pomalidomide, dexamethasone (DPd) in patients with relapsed and lenalidomide-refractory multiple myeloma who received one to three prior lines of therapy, including a proteasome inhibitor (PI) and an immunomodulatory agent (IMiD). Results from this subgroup analysis showed CARVYKTI significantly improved PFS for patients with functional high-risk (FHR) multiple myeloma, defined as disease progression within 18 months following ASCT or following initiation of first-line treatment.2

The subgroup analysis included patients (n=136) who received one prior line of therapy, including a PI and an IMiD and were lenalidomide-refractory, including patients (n=79) who had FHR multiple myeloma.2 Patients were randomized to CARVYKTI (n=68) or standard therapies (n=68), including those with FHR multiple myeloma (CARVYKTI, n=40; standard therapies, n=39).2

Median PFS was NR among patients who received CARVYKTI compared to 17 months (95% Confidence Interval,11-NE) for the control arm as a second-line treatment (HR=0.35 [95% CI, 0.2-0.7; P=.0007]), including those who had FHR multiple myeloma (CARVYKTI, NR [95% CI,18-NE]; standard therapies, 12 months [95% CI, 8-NE]), (HR=0.27 [95% CI, 0.1-0.6; P=.0006]).2 Patients treated with CARVYKTI who had FHR multiple myeloma compared to those treated with standard therapies had consistently higher rates of overall responses (88%; 80%), CR or better (68%; 39% ), MRD negativity (65%; 10%), and longer mDOR (NR [16-NE]; 16 [8-NE]).

The safety profile in this subgroup analysis was consistent with the known safety profile of cilta-cel.2 The proportion of patients with grade 3 or higher TEAEs was comparable among patients who received CARVYKTI versus standard therapies as second-line treatment (96%, 96%), including those with FHR multiple myeloma (100%, 97%).2 Overall, 11 patients who received CARVYKTI after one prior line of therapy and 11 patients who received standard therapies after one prior line of therapy died.2 Of the patients with FHR multiple myeloma, 7 patients from the CARVYKTI arm, and 9 who received standard therapies died.2 Of the 7 deaths in patients with one prior line of therapy and functionally high-risk multiple myeloma, 2 did not receive CARVYKTI as study treatment, and 3 received CARVYKTI as subsequent therapy.

CARTITUDE-4: Subgroup analysis of patients with high-risk cytogenetics demonstrates favorable efficacy for CARVYKTI vs standard therapy (Abstract #P978)

CARVYKTI demonstrated favorable efficacy outcomes – including higher ORR, ≥CR rates, and MRD negativity rates and improved PFS – vs SOC in patients with high-risk and standard-risk cytogenetics.3 In patients with standard-risk cytogenetics, median PFS was not reached (NR; 95% CI, NE-NE) with CARVYKTI vs 20.6 months (95% CI, 11.2-NE) with SOC. In patients with high-risk cytogenetics, median PFS was not reached (95% CI, 18.4–NE) with CARVYKTI vs 10.3 months (95% CI, 7.6–12.5) with SOC.

Results from the Phase 3 CARTITUDE-4 subgroup analysis demonstrate the efficacy of CARVYKTI versus SOC in patients with high-risk-cytogenetics, supporting the role of CARVYKTI as a potential new SOC in this patient population.

Data from the CARTITUDE-4 study supported the U.S. FDA approval of CARVYKTI on April 5, 2024, for the treatment of adult patients with relapsed or refractory multiple myeloma who have received at least one prior line of therapy (LOT), including a PI and an IMiD, and are refractory to lenalidomide.

CARVYKTI IMPORTANT SAFETY INFORMATION

WARNING: CYTOKINE RELEASE SYNDROME, NEUROLOGIC TOXICITIES, HLH/MAS, PROLONGED and RECURRENT CYTOPENIA, and SECONDARY HEMATOLOGICAL MALIGNANCIES

Cytokine Release Syndrome (CRS), including fatal or life-threatening reactions, occurred in patients following treatment with CARVYKTI. Do not administer CARVYKTI to patients with active infection or inflammatory disorders. Treat severe or life-threatening CRS with tocilizumab or tocilizumab and corticosteroids.

Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS), which may be fatal or life-threatening, occurred following treatment with CARVYKTI, including before CRS onset, concurrently with CRS, after CRS resolution, or in the absence of CRS. Monitor for neurologic events after treatment with CARVYKTI. Provide supportive care and/or corticosteroids as needed.

Parkinsonism and Guillain-Barré syndrome (GBS) and their associated complications resulting in fatal or life-threatening reactions have occurred following treatment with CARVYKTI.

Hemophagocytic Lymphohistiocytosis/Macrophage Activation Syndrome (HLH/MAS), including fatal and life-threatening reactions, occurred in patients following treatment with CARVYKTI. HLH/MAS can occur with CRS or neurologic toxicities.

Prolonged and/or recurrent cytopenias with bleeding and infection and requirement for stem cell transplantation for hematopoietic recovery occurred following treatment with CARVYKTI.

Secondary hematological malignancies, including myelodysplastic syndrome and acute myeloid leukemia, have occurred in patients following treatment with CARVYKTI. T-cell malignancies have occurred following treatment of hematologic malignancies with BCMA- and CD19-directed genetically modified autologous T-cell immunotherapies, including CARVYKTI.

CARVYKTI is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the CARVYKTI REMS Program.

WARNINGS AND PRECAUTIONS

INCREASED EARLY MORTALITY – In CARTITUDE-4, a (1:1) randomized controlled trial, there was a numerically higher percentage of early deaths in patients randomized to the CARVYKTI treatment arm compared to the control arm. Among patients with deaths occurring within the first 10 months from randomization, a greater proportion (29/208; 14%) occurred in the CARVYKTI arm compared to (25/211; 12%) in the control arm. Of the 29 deaths that occurred in the CARVYKTI arm within the first 10 months of randomization, 10 deaths occurred prior to CARVYKTI infusion, and 19 deaths occurred after CARVYKTI infusion. Of the 10 deaths that occurred prior to CARVYKTI infusion, all occurred due to disease progression, and none occurred due to adverse events. Of the 19 deaths that occurred after CARVYKTI infusion, 3 occurred due to disease progression, and 16 occurred due to adverse events. The most common adverse events were due to infection (n=12).

CYTOKINE RELEASE SYNDROME (CRS), including fatal or life-threatening reactions, occurred following treatment with CARVYKTI. Among patients receiving CARVYKTI for RRMM in the CARTITUDE-1 & 4 studies (N=285), CRS occurred in 84% (238/285), including ≥ Grade 3 CRS (ASCT 2019) in 4% (11/285) of patients. Median time to onset of CRS, any grade, was 7 days (range: 1 to 23 days). CRS resolved in 82% with a median duration of 4 days (range: 1 to 97 days). The most common manifestations of CRS in all patients combined (≥ 10%) included fever (84%), hypotension (29%) and aspartate aminotransferase increased (11%). Serious events that may be associated with CRS include pyrexia, hemophagocytic lymphohistiocytosis, respiratory failure, disseminated intravascular coagulation, capillary leak syndrome, and supraventricular and ventricular tachycardia. CRS occurred in 78% of patients in CARTITUDE-4 (3% Grade 3 to 4) and in 95% of patients in CARTITUDE-1 (4% Grade 3 to 4). Identify CRS based on clinical presentation. Evaluate for and treat other causes of fever, hypoxia, and hypotension. CRS has been reported to be associated with findings of HLH/MAS, and the physiology of the syndromes may overlap. HLH/MAS is a potentially life-threatening condition. In patients with progressive symptoms of CRS or refractory CRS despite treatment, evaluate for evidence of HLH/MAS. Please see Section 5.4; Hemophagocytic Lymphohistiocytosis (HLH)/Macrophage Activation Syndrome (MAS).

Ensure that a minimum of two doses of tocilizumab are available prior to infusion of CARVYKTI.

Of the 285 patients who received CARVYKTI in clinical trials, 53% (150/285) patients received tocilizumab; 35% (100/285) received a single dose, while 18% (50/285) received more than 1 dose of tocilizumab. Overall, 14% (39/285) of patients received at least one dose of corticosteroids for treatment of CRS.

Monitor patients at least daily for 10 days following CARVYKTI infusion at a REMS-certified healthcare facility for signs and symptoms of CRS. Monitor patients for signs or symptoms of CRS for at least 4 weeks after infusion. At the first sign of CRS, immediately institute treatment with supportive care, tocilizumab, or tocilizumab and corticosteroids.

Counsel patients to seek immediate medical attention should signs or symptoms of CRS occur at any time.

NEUROLOGIC TOXICITIES, which may be severe, life-threatening, or fatal, occurred following treatment with CARVYKTI. Neurologic toxicities included ICANS, neurologic toxicity with signs and symptoms of parkinsonism, GBS, immune mediated myelitis, peripheral neuropathies, and cranial nerve palsies. Counsel patients on the signs and symptoms of these neurologic toxicities, and on the delayed nature of onset of some of these toxicities. Instruct patients to seek immediate medical attention for further assessment and management if signs or symptoms of any of these neurologic toxicities occur at any time.

Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies for RRMM, one or more neurologic toxicities occurred in 24% (69/285), including ≥ Grade 3 cases in 7% (19/285) of patients. Median time to onset was 10 days (range: 1 to 101) with 63/69 (91%) of cases developing by 30 days. Neurologic toxicities resolved in 72% (50/69) of patients with a median duration to resolution of 23 days (range: 1 to 544). Of patients developing neurotoxicity, 96% (66/69) also developed CRS. Subtypes of neurologic toxicities included ICANS in 13%, peripheral neuropathy in 7%, cranial nerve palsy in 7%, parkinsonism in 3%, and immune mediated myelitis in 0.4% of the patients.

Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS): Patients receiving CARVYKTI may experience fatal or life-threatening ICANS following treatment with CARVYKTI, including before CRS onset, concurrently with CRS, after CRS resolution, or in the absence of CRS.

Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, ICANS occurred in 13% (36/285), including Grade ≥3 in 2% (6/285) of the patients. Median time to onset of ICANS was 8 days (range: 1 to 28 days). ICANS resolved in 30 of 36 (83%) of patients with a median time to resolution of 3 days (range: 1 to 143 days). Median duration of ICANS was 6 days (range: 1 to 1229 days) in all patients including those with ongoing neurologic events at the time of death or data cut-off. Of patients with ICANS, 97% (35/36) had CRS. The onset of ICANS occurred during CRS in 69% of patients, before and after the onset of CRS in 14% of patients respectively.

Immune Effector Cell-associated Neurotoxicity Syndrome (ICANS) occurred in 7% of patients in CARTITUDE-4 (0.5% Grade 3) and in 23% of patients in CARTITUDE-1 (3% Grade 3). The most frequent ≥2% manifestations of ICANS included encephalopathy (12%), aphasia (4%), headache (3%), motor dysfunction (3%), ataxia (2%), and sleep disorder (2%) [see Adverse Reactions (6.1)].

Monitor patients at least daily for 10 days following CARVYKTI infusion at the REMS-certified healthcare facility for signs and symptoms of ICANS. Rule out other causes of ICANS symptoms. Monitor patients for signs or symptoms of ICANS for at least 4 weeks after infusion and treat promptly. Neurologic toxicity should be managed with supportive care and/or corticosteroids as needed [see Dosage and Administration (2.3)].

Parkinsonism: Neurologic toxicity with parkinsonism has been reported in clinical trials of CARVYKTI. Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, parkinsonism occurred in 3% (8/285), including Grade ≥ 3 in 2% (5/285) of the patients. Median time to onset of parkinsonism was 56 days (range: 14 to 914 days). Parkinsonism resolved in 1 of 8 (13%) of patients with a median time to resolution of 523 days. Median duration of parkinsonism was 243.5 days (range: 62 to 720 days) in all patients including those with ongoing neurologic events at the time of death or data cut-off. The onset of parkinsonism occurred after CRS for all patients and after ICANS for 6 patients.

Parkinsonism occurred in 1% of patients in CARTITUDE-4 (no Grade 3 to 4) and in 6% of patients in CARTITUDE-1 (4% Grade 3 to 4).

Manifestations of parkinsonism included movement disorders, cognitive impairment, and personality changes. Monitor patients for signs and symptoms of parkinsonism that may be delayed in onset and managed with supportive care measures. There is limited efficacy information with medications used for the treatment of Parkinson’s disease for the improvement or resolution of parkinsonism symptoms following CARVYKTI treatment.

Guillain-Barré Syndrome: A fatal outcome following GBS occurred following treatment with CARVYKTI despite treatment with intravenous immunoglobulins. Symptoms reported include those consistent with Miller-Fisher variant of GBS, encephalopathy, motor weakness, speech disturbances, and polyradiculoneuritis.

Monitor for GBS. Evaluate patients presenting with peripheral neuropathy for GBS. Consider treatment of GBS with supportive care measures and in conjunction with immunoglobulins and plasma exchange, depending on severity of GBS.

Immune Mediated Myelitis: Grade 3 myelitis occurred 25 days following treatment with CARVYKTI in CARTITUDE-4 in a patient who received CARVYKTI as subsequent therapy. Symptoms reported included hypoesthesia of the lower extremities and the lower abdomen with impaired sphincter control. Symptoms improved with the use of corticosteroids and intravenous immune globulin. Myelitis was ongoing at the time of death from other cause.

Peripheral Neuropathy occurred following treatment with CARVYKTI. Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, peripheral neuropathy occurred in 7% (21/285), including Grade ≥3 in 1% (3/285) of the patients. Median time to onset of peripheral neuropathy was 57 days (range: 1 to 914 days). Peripheral neuropathy resolved in 11 of 21 (52%) of patients with a median time to resolution of 58 days (range: 1 to 215 days). Median duration of peripheral neuropathy was 149.5 days (range: 1 to 692 days) in all patients including those with ongoing neurologic events at the time of death or data cut-off.

Peripheral neuropathies occurred in 7% of patients in CARTITUDE-4 (0.5% Grade 3 to 4) and in 7% of patients in CARTITUDE-1 (2% Grade 3 to 4). Monitor patients for signs and symptoms of peripheral neuropathies. Patients who experience peripheral neuropathy may also experience cranial nerve palsies or GBS.

Cranial Nerve Palsies occurred following treatment with CARVYKTI. Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, cranial nerve palsies occurred in 7% (19/285), including Grade ≥3 in 1% (1/285) of the patients. Median time to onset of cranial nerve palsies was 21 days (range: 17 to 101 days). Cranial nerve palsies resolved in 17 of 19 (89%) of patients with a median time to resolution of 66 days (range: 1 to 209 days). Median duration of cranial nerve palsies was 70 days (range: 1 to 262 days) in all patients including those with ongoing neurologic events at the time of death or data cut-off. Cranial nerve palsies occurred in 9% of patients in CARTITUDE-4 (1% Grade 3 to 4) and in 3% of patients in CARTITUDE-1 (1% Grade 3 to 4).

The most frequent cranial nerve affected was the 7th cranial nerve. Additionally, cranial nerves III, V, and VI have been reported to be affected.

Monitor patients for signs and symptoms of cranial nerve palsies. Consider management with systemic corticosteroids, depending on the severity and progression of signs and symptoms.

HEMOPHAGOCYTIC LYMPHOHISTIOCYTOSIS (HLH)/MACROPHAGE ACTIVATION SYNDROME (MAS): Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, HLH/MAS occurred in 1% (3/285) of patients. All events of HLH/MAS had onset within 99 days of receiving CARVYKTI, with a median onset of 10 days (range: 8 to 99 days) and all occurred in the setting of ongoing or worsening CRS. The manifestations of HLH/MAS included hyperferritinemia, hypotension, hypoxia with diffuse alveolar damage, coagulopathy and hemorrhage, cytopenia, and multi-organ dysfunction, including renal dysfunction and respiratory failure.

Patients who develop HLH/MAS have an increased risk of severe bleeding. Monitor hematologic parameters in patients with HLH/MAS and transfuse per institutional guidelines. Fatal cases of HLH/MAS occurred following treatment with CARVYKTI.

HLH is a life-threatening condition with a high mortality rate if not recognized and treated early. Treatment of HLH/MAS should be administered per institutional standards.

CARVYKTI REMS: Because of the risk of CRS and neurologic toxicities, CARVYKTI is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the CARVYKTI REMS.

Further information is available at View Source or 1-844-672-0067.

PROLONGED AND RECURRENT CYTOPENIAS: Patients may exhibit prolonged and recurrent cytopenias following lymphodepleting chemotherapy and CARVYKTI infusion.

Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, Grade 3 or higher cytopenias not resolved by day 30 following CARVYKTI infusion occurred in 62% (176/285) of the patients and included thrombocytopenia 33% (94/285), neutropenia 27% (76/285), lymphopenia 24% (67/285) and anemia 2% (6/285). After Day 60 following CARVYKTI infusion 22%, 20%, 5%, and 6% of patients had a recurrence of Grade 3 or 4 lymphopenia, neutropenia, thrombocytopenia, and anemia respectively, after initial recovery of their Grade 3 or 4 cytopenia. Seventy-seven percent (219/285) of patients had one, two, or three or more recurrences of Grade 3 or 4 cytopenias after initial recovery of Grade 3 or 4 cytopenia. Sixteen and 25 patients had Grade 3 or 4 neutropenia and thrombocytopenia, respectively, at the time of death.

Monitor blood counts prior to and after CARVYKTI infusion. Manage cytopenias with growth factors and blood product transfusion support according to local institutional guidelines.

INFECTIONS: CARVYKTI should not be administered to patients with active infection or inflammatory disorders. Severe, life-threatening, or fatal infections, occurred in patients after CARVYKTI infusion.

Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, infections occurred in 57% (163/285), including ≥Grade 3 in 24% (69/285) of patients. Grade 3 or 4 infections with an unspecified pathogen occurred in 12%, viral infections in 6%, bacterial infections in 5%, and fungal infections in 1% of patients. Overall, 5% (13/285) of patients had Grade 5 infections, 2.5% of which were due to COVID-19. Patients treated with CARVYKTI had an increased rate of fatal COVID-19 infections compared to the standard therapy arm.

Monitor patients for signs and symptoms of infection before and after CARVYKTI infusion and treat patients appropriately. Administer prophylactic, pre-emptive, and/or therapeutic antimicrobials according to the standard institutional guidelines. Febrile neutropenia was observed in 5% of patients after CARVYKTI infusion and may be concurrent with CRS. In the event of febrile neutropenia, evaluate for infection and manage with broad-spectrum antibiotics, fluids, and other supportive care, as medically indicated. Counsel patients on the importance of prevention measures. Follow institutional guidelines for the vaccination and management of immunocompromised patients with COVID-19.

Viral Reactivation: Hepatitis B virus (HBV) reactivation, in some cases resulting in fulminant hepatitis, hepatic failure, and death, can occur in patients with hypogammaglobulinemia. Perform screening for Cytomegalovirus (CMV), HBV, hepatitis C virus (HCV), human immunodeficiency virus (HIV), or any other infectious agents if clinically indicated in accordance with clinical guidelines before collection of cells for manufacturing. Consider antiviral therapy to prevent viral reactivation per local institutional guidelines/clinical practice.

HYPOGAMMAGLOBULINEMIA: can occur in patients receiving treatment with CARVYKTI. Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, hypogammaglobulinemia adverse event was reported in 36% (102/285) of patients; laboratory IgG levels fell below 500mg/dl after infusion in 93% (265/285) of patients.

Hypogammaglobulinemia either as an adverse reaction or laboratory IgG level below 500mg/dl, after infusion occurred in 94% (267/285) of patients treated. Fifty-six percent (161/285) of patients received intravenous immunoglobulin (IVIG) post CARVYKTI for either an adverse reaction or prophylaxis.

Monitor immunoglobulin levels after treatment with CARVYKTI and administer IVIG for IgG <400 mg/dL. Manage per local institutional guidelines, including infection precautions and antibiotic or antiviral prophylaxis.

Use of Live Vaccines: The safety of immunization with live viral vaccines during or following CARVYKTI treatment has not been studied. Vaccination with live virus vaccines is not recommended for at least 6 weeks prior to the start of lymphodepleting chemotherapy, during CARVYKTI treatment, and until immune recovery following treatment with CARVYKTI.

HYPERSENSITIVITY REACTIONS occurred following treatment with CARVYKTI. Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, hypersensitivity reactions occurred in 5% (13/285), all of which were ≤ Grade 2. Manifestations of hypersensitivity reactions included flushing, chest discomfort, tachycardia, wheezing, tremor, burning sensation, non-cardiac chest pain, and pyrexia.

Serious hypersensitivity reactions, including anaphylaxis, may be due to the dimethyl sulfoxide (DMSO) in CARVYKTI. Patients should be carefully monitored for 2 hours after infusion for signs and symptoms of severe reaction. Treat promptly and manage patients appropriately according to the severity of the hypersensitivity reaction.

SECONDARY MALIGNANCIES: Patients treated with CARVYKTI may develop secondary malignancies. Among patients receiving CARVYKTI in the CARTITUDE-1 & 4 studies, myeloid neoplasms occurred in 5% (13/285) of patients (9 cases of myelodysplastic syndrome, 3 cases of acute myeloid leukemia, and 1 case of myelodysplastic syndrome followed by acute myeloid leukemia). The median time to onset of myeloid neoplasms was 447 days (range: 56 to 870 days) after treatment with CARVYKTI. Ten of these 13 patients died following the development of myeloid neoplasms; 2 of the 13 cases of myeloid neoplasm occurred after initiation of subsequent antimyeloma therapy. Cases of myelodysplastic syndrome and acute myeloid leukemia have also been reported in the post-marketing setting. T-cell malignancies have occurred following treatment of hematologic malignancies with BCMA- and CD19-directed genetically modified autologous T-cell immunotherapies, including CARVYKTI. Mature T-cell malignancies, including CAR-positive tumors, may present as soon as weeks following infusions and may include fatal outcomes.

Monitor life-long for secondary malignancies. In the event that a secondary malignancy occurs, contact Janssen Biotech, Inc. at 1-800-526-7736 for reporting and to obtain instructions on collection of patient samples.

EFFECTS ON ABILITY TO DRIVE AND USE MACHINES: Due to the potential for neurologic events, including altered mental status, seizures, neurocognitive decline, or neuropathy, patients receiving CARVYKTI are at risk for altered or decreased consciousness or coordination in the 8 weeks following CARVYKTI infusion. Advise patients to refrain from driving and engaging in hazardous occupations or activities, such as operating heavy or potentially dangerous machinery during this initial period, and in the event of new onset of any neurologic toxicities.

ADVERSE REACTIONS

The most common nonlaboratory adverse reactions (incidence greater than 20%) are pyrexia, cytokine release syndrome, hypogammaglobulinemia, hypotension, musculoskeletal pain, fatigue, infections-pathogen unspecified, cough, chills, diarrhea, nausea, encephalopathy, decreased appetite, upper respiratory tract infection, headache, tachycardia, dizziness, dyspnea, edema, viral infections, coagulopathy, constipation, and vomiting. The most common Grade 3 or 4 laboratory adverse reactions (incidence greater than or equal to 50%) include lymphopenia, neutropenia, white blood cell decreased, thrombocytopenia, and anemia.

Please read full Prescribing Information, including Boxed Warning, for CARVYKTI.

ABOUT CARVYKTI (CILTACABTAGENE AUTOLEUCEL; CILTA-CEL)

Ciltacabtagene autoleucel is a BCMA-directed, genetically modified autologous T-cell immunotherapy, which involves reprogramming a patient’s own T-cells with a transgene encoding a chimeric antigen receptor (CAR) that identifies and eliminates cells that express BCMA. The cilta-cel CAR protein features two BCMA-targeting single domain antibodies designed to confer high avidity against human BCMA. Upon binding to BCMA-expressing cells, the CAR promotes T-cell activation, expansion, and elimination of target cells.4

In December 2017, Legend Biotech entered into an exclusive worldwide license and collaboration agreement with Janssen Biotech, Inc. (Janssen), a Johnson & Johnson company, to develop and commercialize cilta-cel. In February 2022, cilta-cel was approved by the U.S. Food and Drug Administration (FDA) under the brand name CARVYKTI for the treatment of adults with relapsed or refractory multiple myeloma. In April 2024, cilta-cel was approved for the second-line treatment of patients with relapsed/refractory myeloma who have received at least one prior line of therapy including a proteasome inhibitor, an immunomodulatory agent, and are refractory to lenalidomide.

In May 2022, the European Commission (EC) granted conditional marketing authorization of CARVYKTI for the treatment of adults with relapsed and refractory multiple myeloma. In September 2022, Japan’s Ministry of Health, Labour and Welfare (MHLW) approved CARVYKTI. Cilta-cel was granted Breakthrough Therapy Designation in the U.S. in December 2019 and in China in August 2020. In addition, cilta-cel received a PRIority MEdicines (PRIME) designation from the European Commission in April 2019. Cilta-cel also received Orphan Drug Designation from the U.S. FDA in February 2019, from the European Commission in February 2020, and from the Pharmaceuticals and Medicinal Devices Agency (PMDA) in Japan in June 2020. In March 2022, the European Medicines Agency’s Committee for Orphan Medicinal Products recommended by consensus that the orphan designation for cilta-cel be maintained on the basis of clinical data demonstrating improved and sustained complete response rates following treatment.

ABOUT CARTITUDE-2

CARTITUDE-2 (NCT04133636) is an ongoing Phase 2 multicohort study evaluating the safety and efficacy of cilta-cel in various clinical settings (Cohorts A, B, C, D, E, F, G, H).5

ABOUT CARTITUDE-4

CARTITUDE-4 (NCT04181827) is an ongoing, international, randomized, open-label Phase 3 study evaluating the efficacy and safety of cilta-cel versus pomalidomide, bortezomib and dexamethasone (PVd) or daratumumab, pomalidomide, and dexamethasone (DPd) in adult patients with relapsed and lenalidomide-refractory multiple myeloma who received one to three prior lines of therapy, including a PI and an IMiD.6

ABOUT MULTIPLE MYELOMA

Multiple myeloma is an incurable blood cancer that starts in the bone marrow and is characterized by an excessive proliferation of plasma cells.7 In 2024, it is estimated that more than 35,000 people will be diagnosed with multiple myeloma, and more than 12,000 people will die from the disease in the U.S.8 While some patients with multiple myeloma initially have no symptoms, most patients are diagnosed due to symptoms that can include bone problems, low blood counts, calcium elevation, kidney problems or infections.

RS Oncology Announces Positive Data from a Phase 1 Clinical Trial of RSO-021, a First-in-Class Therapeutic for Malignant Pleural Mesothelioma

On June 3, 2024 RS Oncology, a privately held biopharmaceutical company focusing on novel treatments for rare and aggressive cancers reported positive results from its Phase 1 study in patients with Malignant Pleural Mesothelioma (MPM) with Malignant Pleural Effusion (MPE) or MPE associated with other solid tumors at the 2024 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting (Press release, RS Oncology, JUN 3, 2024, View Source [SID1234644050]).

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The Phase 1 data was presented by Professor Dean Fennell, MRCP, FRCP (MD/PhD) on behalf of all the MITOPE investigators at an oral presentation session. In the 15 recruited patients safety data demonstrated weekly treatment of RSO-021 was well tolerated at 90 mg. The pharmacokinetic data showed minimal systemic exposure to RSO-021 after intrapleural administration. Efficacy data showed a long-term partial response in one patient as well as encouraging survival in 7 of the 10 evaluable patients. In addition to responses in mesothelioma, the drug showed promising responses in non-target lesions and other cancers with metastatic disease to the lung.

"The MITOPE trial would not have been possible without the support of the outstanding investigation teams throughout the UK who are dedicated to the treatment of patients with mesothelioma. We thank all of the MITOPE trial participants and their supportive families, and look forward to hearing about their continued benefit," said George Naumov, PhD, RS Oncology Chief Operations Officer.

"RSO-021 represents a new class of drugs with a first-in-class anticancer mechanism. The safety and efficacy observed in the Phase 1 trial is supported by strong pre-clinical rationale" said Brian Cunniff, PhD, Chief Science Officer for RS Oncology.

MPM is a rare and aggressive form of cancer that typically develops years after asbestos inhalation and/or exposure. Most cases (70%) originate in the pleura, but it can also be found the peritoneum and the pericardium. A mesothelioma prognosis remains poor with a shorter life expectancy and decreased quality of life.

Phase 2 exploration of this novel agent is ongoing at two doses, as a single agent and in combination with chemotherapy. Clinical trial information: NCT05278975.

About RS0-021

RSO-021 is a naturally occurring, sulfur-rich, cyclic oligopeptide of the thiopeptide class, which covalently inactivates PRX3, leading to catastrophic oxidative stress and cell death.

The oral and poster presentations will be available for viewing on RSOncology.com.

About the MITOPE study

MITOPE is an open-label, non-randomized, multicenter, translational Phase 1/2 dose-escalation and expansion study. It is designed to determine the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary anti-tumor activity of RSO-021 after intrapleural (IP) administration in patients with MPE associated with either MPM or other solid tumors.

Fapon Biopharma Announces a Safer Immunotherapy for Cancers

On June 3, 2024 Fapon Biopharma, an innovator in developing therapeutic antibodies and fusion proteins, reported an immunocytokine with modified IL-10M fused to anti-PD-1 antibody, codenamed FP008 at Bio International Convention 2024, which is taking place here in San Diego during June 3-6 (Press release, Fapon Biopharma, JUN 3, 2024, View Source [SID1234644049]). This fusion protein provides a promising therapeutic strategy for solid tumors refractory to anti-PD-1 therapy. The groundbreaking announcement is a testimony to Fapon Biopharma’s strength in developing anticancer drugs.

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FP008 is a patent-pending drug candidate developed by Fapon Biopharma using cutting-edge antibody technology. It stands out as a first-in-class biologic candidate combining IL-10M (an attenuated IL-10 monomer variant) and an anti-PD-1 antibody, providing a targeted therapy with enhanced efficacy while significantly reducing the challenging toxicity associated with wtIL-10. This is a critical advancement in the field. FP008 not only reduces the apoptosis of the exhausted CD8+ T cells and restores their activity in vitro, but also significantly increases the level of CD8+ T cells within the tumor microenvironment, exhibiting a potent anti-tumor effect in vivo. It exhibited good druggability and was well tolerated in a toxicity study of up to 10 mpk in cynomolgus monkeys. As a result, FP008 is a viable drug candidate.

FP008 is poised to have a substantial impact on immunotherapy for cancer in patients who do not respond to existing treatments. The company aims to present it to a global audience and seek partners to drive its development for the benefit of cancer patients around the world eventually.

Fapon Biopharma plans to submit an IND application for FP008 to the FDA in early 2025. The company remains committed to developing more effective and more accessible therapeutics with consistent innovation and collaboration.

STORM Therapeutics Presented Interim Phase 1 Clinical Data on its METTL3 RNA Methyltransferase Inhibitor STC-15 at ASCO 2024

On June 3, 2024 STORM Therapeutics Ltd. (STORM), the clinical stage company pioneering cellular reprogramming through RNA modifications to treat disease, reported that interim Phase 1 clinical data from its first-in-class lead product, STC-15, was presented at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting, held in Chicago, US (Press release, STORM Therapeutics, JUN 3, 2024, View Source [SID1234644048]).

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The presented poster, entitled, ‘Phase 1 Dose Escalation and Cohort Expansion Study Evaluating Safety, PK, PD and Clinical Activity of STC-15, a METTL3 Inhibitor in Patients with Advanced Malignancies’, highlighted recent findings on STORM’s lead product, STC-15, a potent and selective METTL3 inhibitor and the first molecule specifically targeting an RNA methyltransferase enzyme to enter clinical development.

The study was conducted to evaluate the safety, pharmacokinetics, target modulation and clinical activity of STC-15 in patients with advanced malignancies, with the aim of establishing a recommended Phase 2 dose escalation to support future clinical development. The study enrolled 33 patients across five dose escalation cohorts ranging from 60mg to 200mg and explored daily and thrice weekly oral dosing regimens. Data presented at ASCO (Free ASCO Whitepaper) from 33 patients is outlined below:

STC-15 is well tolerated across the pharmacologically active dose range
Treatment emergent adverse events (TEAEs) were manageable: common related adverse events were thrombocytopenia, rash, and pruritus
As of April 15, 2024, 27 patients were evaluable for response assessment with at least 1 on-treatment scan. Clinical activity was observed, comprising of;
– 11% Overall Response Rate (3 partial responses)
– 63% Disease Control Rate (14 stable disease, 3 partial responses)
PK simulations and safety data support oral administration of STC-15 three times a week (TIW)
Significant reductions in methylated polyA-RNA in blood samples from all cohorts demonstrated METTL3 target engagement and rapid PD effect
Additional PD biomarker analysis indicated activation of interferon signaling and innate immune responses, as measured by RNA transcript analysis in blood cells from treated patients
Recommended Phase 2 doses were identified as between 60mg and 200mg TIW
Advancement of STC-15 into combination studies with checkpoint inhibitors is expected to commence in 2024
Jerry McMahon, Chief Executive Officer of Storm Therapeutics, said: "This Phase 1 data, to date, demonstrates the encouraging potential of STC-15 and its ability to impact a wide range of cancers. STC-15 is showing excellent safety and pharmacologic properties as it advances further into clinical development. As part of STORM’s evolving strategy, we are expanding our studies and structuring clinical trial designs to include patients with cancers such as lung, melanoma, head and neck, and endometrial cancer in the future, and we look forward to providing further updates in due course."

Josi Holz, Chief Medical Officer of STORM Therapeutics, commented: "These data signify great progress for STORM as we continue to develop our pipeline of RNA modifying enzyme inhibitors. We are pleased to be presenting data that demonstrates the potential of STC-15 and its promising signs of tolerability and clinical activity. We look forward to completing the current Phase 1 study and including the addition of checkpoint inhibitors."

Justin Moser, Principal Investigator at HonorHealth Research Institute and First Author, remarked: "These new data presented at ASCO (Free ASCO Whitepaper) on STC-15 are promising and support future clinical studies with this novel agent and new mechanism. METTL3 inhibition has demonstrated early clinical activity and represents a new way to activate the innate immune system with the potential to treat cancer in patients across a range of tumor types."

Abstracts are available on the ASCO (Free ASCO Whitepaper) program guide here, and on the STORM website here.

STC-15 is currently under evaluation for the treatment of patients with advanced solid tumors in a first-in-human, Phase 1 clinical study with ongoing with cohorts being expanded to further evaluate safety, food effect, PK/PD, clinical activity, with the goal of determining optimized active doses. Details of the study can be found on clinicaltrials.gov under the identifier NCT05584111.

NeoImmuneTech’s New Data at ASCO 2024 Highlights Enhanced Benefits of Combining NT-I7 with Checkpoint Inhibitors (CPI) in Immuno-Oncology

On June 3, 2024 NeoImmuneTech, Inc. (NIT), a T cell-focused therapeutics company, reported promising interim results of its major clinical trial NIT-110 of NT-I7 (efineptakin alfa), at the 2024 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) global meeting held in Chicago, from May 31 to June 4 (Press release, NeoImmuneTech, JUN 3, 2024, View Source [SID1234644047]). The company also presented two additional posters at the conference.

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NIT-110 is a foundational clinical trial for NT-I7 that aims to confirm the safety and efficacy of combining NT-I7 with pembrolizumab (Keytruda) in solid tumors. The data presented at ASCO (Free ASCO Whitepaper) 2024 confirmed that the combination is safe and well-tolerated.

Key findings from NIT-110 include:

Pancreatic cancer – Data showed a median overall survival (mOS) of 11.1 months among the 48 pancreatic cancer patients included in the study. The mOS for pancreatic cancer patients who have received a second-line standard of care treatment is currently known to be 6.1 months[1]. This mOS improvement is particularly noteworthy considering that 93.75% of the patients are receiving the combination treatment as third-line or beyond.
MSS colorectal cancer -The mOS for the 50 microsatellite-stable (MSS) colorectal cancer patients was 13.2 months. The mOS for the current standard of care treatment is 10.8 months[2].
These results underscore the improved efficacy of the NT-I7 and Keytruda combination over existing standard of care treatments.

A separate poster from trial NIT-110 revealed a correlative analysis identifying a potentially predictive biomarker. These biomarkers may help identify patient populations more likely to benefit clinically from the NT-I7 and Keytruda combination. NeoImmuneTech is committed to further biomarker validation to enhance clinical outcomes.

Additionally, a preclinical study presented at ASCO (Free ASCO Whitepaper) 2024 highlighted the combination of NT-I7 with an oncolytic virus (ZIKV) in a glioblastoma animal model. Results demonstrated a significant increase in tumor specific CD8 T cells in the tumor microenvironment, leading to improved survival rates. Furthermore, 80% of cases in the experimental group combining NT-I7 with immune checkpoint inhibitors resulted in complete tumor eradication. NT-I7 continues to show clinical benefits driven by T cell amplification when combined with immune therapies.

NeoImmuneTech’s CEO, Luke Oh, PhD, said: "We are very encouraged by the improved clinical efficacy over standard of care in pancreatic and colorectal cancer, a notoriously difficult to treat cancer. These findings confirm our promising preclinical data and open new pathways to further enhance clinical outcomes. We are actively discussing the next steps with Merck. The results presented at ASCO (Free ASCO Whitepaper) 2024 confirm our strategy to continue to develop NT-I7 in the larger and high-potential immuno-oncology market."

Posters references:

Abstract #

Track

Poster board #

Title

2621 (Link)

Developmental Therapeutics -Immunotherapy

100

A Phase 2a study of NT-I7 (efineptakin alfa), a long-acting IL-7, and pembrolizumab to evaluate efficacy, including overall survival, in hard-to-treat MSS-CRC and PDAC gastrointestinal tumors

2563

(Link)

Developmental Therapeutics -Immunotherapy

42

Investigation of a potential protein biomarker signature that may predict clinical benefit of NT-I7 and pembrolizumab in patients with cold gastrointestinal tumors

2043

(Link)

Central Nervous System Tumors

342

Expand and pull: a new treatment paradigm for glioblastoma using a long-acting recombinant interleukin-7 and oncolytic viral therapy

About Study NIT-110
NIT-110 is an open label Phase 2a clinical trial supported by Merck that aims to confirm the efficacy of combining NT-I7 with Keytruda in two solid tumors. Early results in 2022 had confirmed the efficacy of the combination in pancreatic cancer and MSS colorectal cancer patients, who are known to be unresponsive to immune checkpoint inhibitors alone. Consequently, 24 and 25 additional patients were recruited for each group, respectively, bringing the total to 48 pancreatic cancer patients and 50 MSS colorectal cancer patients currently undergoing clinical trials. Results presented at ASCO (Free ASCO Whitepaper) 2024 provide an updated analysis including the original and expansion cohorts.

About NT-I7 (efineptakin alfa) (rhIL-7-hyFc)

NT-I7 (efineptakin alfa) is the only clinical-stage long-acting human IL-7, and is being developed in oncologic and immunologic indications, where T cell amplification and increased functionality may provide clinical benefit. IL-7 is a fundamental cytokine for naïve and memory T cell development and for sustaining immune response to chronic antigens (as in cancer) or foreign antigens (as in infectious diseases). NT-I7 exhibits favorable PK/PD and safety profiles, making it an ideal combination partner. NT-I7 is being studied in multiple clinical trials in solid tumors and as vaccine adjuvant. Studies are being planned for testing in hematologic malignancies, additional solid tumors and other immunology-focused indications.