Gilead and Kite Oncology Present Important New Data Across Multiple Difficult-to-Treat Cancers at ESMO Congress 2023
October 16, 2023– Real-World Evidence and New Clinical Analysis Support the Role of Trodelvy® in Metastatic Breast Cancers –
– New Data Demonstrate Potential of Trodelvy in Small Cell Lung Cancer, Urothelial Cancer and Head and Neck Cancers –
– Two New Analyses Estimate Treatment Effects of Yescarta Versus Bispecific Antibodies in Relapsed/Refractory Diffuse Large B-cell Lymphoma –
FOSTER CITY, Calif. & SANTA MONICA, Calif.–(BUSINESS WIRE)–Gilead Sciences, Inc. (Nasdaq: GILD) and Kite, a Gilead Company, will present new data, including three oral presentations, at the European Society for Medical Oncology (ESMO) Congress 2023. New clinical data for Trodelvy® (sacituzumab govitecan-hziy) continue to support its use in metastatic triple-negative breast cancer (mTNBC) and pre-treated HR+/HER2- metastatic breast cancer (mBC) and demonstrate the expanding body of evidence for Trodelvy in small cell lung cancer and head and neck cancer. Kite will also present analyses supporting the use of Yescarta® (axicabtagene ciloleucel) in relapsed/refractory large B-Cell lymphoma (LBCL).
“Our data at ESMO 2023 reflect a broad clinical development program in difficult-to-treat cancers,” said Bill Grossman, MD, PhD, Senior Vice President, Therapeutic Area Head, Gilead Oncology. “Trodelvy has the potential to impact many patients with cancer across multiple indications, as demonstrated by presentations featuring new data in extensive-stage small cell lung cancer, metastatic urothelial cancer and previously treated head and neck cancer, along with new analyses in metastatic breast cancer.”
Data for Trodelvy across a range of difficult-to-treat solid tumors include real-world data that reinforce Trodelvy as a standard-of-care option in second-line metastatic TNBC and new post-hoc efficacy analyses from the Phase 3 TROPiCS-02 study in pre-treated HR+/HER2- metastatic breast cancer. Two mini-oral presentations from the TROPiCS-03 basket trial also support the potential of Trodelvy in extensive-stage small cell lung cancer (ES-SCLC) and advanced head and neck squamous cell carcinoma (HNSCC). Preliminary findings from a clinical collaboration with Dana-Farber Cancer Institute in 2L metastatic urothelial cancer, demonstrated for the first time in any tumor, that potentially two ADCs can be given in combination together.
Comparative analyses of Yescarta versus bispecific antibodies
In two separate analyses, a Matching-Adjusted Indirect Comparison (MAIC) was conducted to estimate the treatment effects of Yescarta versus bispecific antibodies glofitamab and epcoritamab, in patients with R/R DLBCL using published evidence from clinical studies of R/R DLBCL patients at third line and beyond. Patient-level data from the pivotal Yescarta study (ZUMA-1) were matched to baseline characteristics of glofitamab and epcoritamab studies, respectively, representing clinically relevant prognostic factors.
“Patients with aggressive relapsed/refractory large B-cell lymphoma face a poor prognosis and have limited options for successful curative therapy,” said Frank Neumann, MD, PhD, Senior Vice President, Global Head of Clinical Development, Kite. “We believe our data will help further clinicians’ understanding of when to use Yescarta in these patients and reinforce confidence in CAR T-cell therapies overall.”
Table of Accepted Abstracts (all times CET):
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Tumor Types |
Abstract Title |
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Breast Cancer |
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Poster #396P Saturday, October 21 Poster Area, Hall 8 |
Real‐World Treatment and Survival Outcomes in Previously Untreated Patients with Metastatic Triple-Negative Breast Cancer (mTNBC) in the United States (US) |
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Poster #389P Saturday, October 21 Poster Area, Hall 8 |
Efficacy and Safety Analyses by Prior Lines of Chemotherapy From the Phase 3 TROPiCS-02 Study of Sacituzumab Govitecan (SG) vs Treatment of Physician’s Choice (TPC) in Patients (pts) With HR+/HER2- Metastatic Breast Cancer (mBC) |
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Poster #393P Saturday, October 21 Poster Area, Hall 8 |
Real-World (RW) Use Patterns, Effectiveness, and Tolerability of Sacituzumab Govitecan (SG) for Second-Line (2L) and Later Treatment of Metastatic Triple-Negative Breast Cancer (mTNBC) |
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Large B-cell Lymphomas |
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Poster #839P Monday, October 23 Poster Area, Hall 8 |
Matching-Adjusted Indirect Comparison (MAIC) of Axicabtagene Ciloleucel (axi-cel) and Glofitamab (glofit) in Relapsed/Refractory (R/R) Large B-Cell Lymphoma (LBCL) After at Least Two Prior Systemic Therapies (3L+) |
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Poster #838P Monday, October 23 Poster Area, Hall 8 |
Matching-Adjusted Indirect Comparison (MAIC) of Axicabtagene Ciloleucel (axi-cel) and Epcoritamab (epcor) in Relapsed/Refractory (R/R) Large B-Cell Lymphoma (LBCL) After at Least Two Prior Systemic Therapies (3L+) |
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Urothelial Cancer |
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Presentation #2360O (mini oral) Saturday, October 21 09:10 Barcelona Auditorium, Hall 9 |
The Double Antibody Drug Conjugate (DAD) Phase I Trial: Sacituzumab Govitecan (SG) Plus Enfortumab Vedotin (EV) as ≥ Second Line Therapy for Metastatic Urothelial Carcinoma (mUC) |
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Head and Neck Cancer |
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Presentation #859MO (mini oral) Saturday, October 21 10:45 Málaga Auditorium, Hall 10 |
Sacituzumab Govitecan (SG) in Patients (pts) With Relapsed/Refractory (R/R) Advanced Head and Neck Squamous Cell Carcinoma (HNSCC): Results From the Phase 2 TROPiCS-03 Basket Trial |
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Small Cell Lung Cancer |
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Presentation #1990MO (mini oral) Saturday, October 21 14:55 Salamanca Auditorium, Hall 3 |
Sacituzumab Govitecan (SG) as Second-Line (2L) Treatment for Extensive Stage Small Cell Lung Cancer (ES-SCLC): Preliminary Results From the Phase 2 TROPiCS-03 Basket Trial |
Trodelvy has not been approved by any regulatory agency for the treatment of SCLC or HNSCC or in combination with any other medicines for mUC. Its safety and efficacy have not been established for these indications and combinations.
About Trodelvy
Trodelvy® (sacituzumab govitecan-hziy) is a first-in-class Trop-2 directed antibody-drug conjugate. Trop-2 is a cell surface antigen highly expressed in multiple tumor types, including in more than 90% of breast and bladder cancers. Trodelvy is intentionally designed with a proprietary hydrolyzable linker attached to SN-38, a topoisomerase I inhibitor payload. This unique combination delivers potent activity to both Trop-2 expressing cells and the microenvironment.
Trodelvy is approved in almost 50 countries, with multiple additional regulatory reviews underway worldwide, for the treatment of adult patients with unresectable locally advanced or metastatic triple-negative breast cancer (TNBC) who have received two or more prior systemic therapies, at least one of them for metastatic disease.
Trodelvy is also approved in the U.S., the European Union, and multiple other global markets to treat certain patients with pre-treated HR+/HER2- metastatic breast cancer. In the U.S., Trodelvy also has accelerated approval for treatment of certain patients with second-line metastatic urothelial cancer (UC); see below for the full U.S. indication for Trodelvy.
Trodelvy is also being developed for potential investigational use in other TNBC, HR+/HER2- and metastatic UC populations, as well as a range of tumor types where Trop-2 is highly expressed, including metastatic non-small cell lung cancer (NSCLC), metastatic small cell lung cancer (SCLC), head and neck cancer, and endometrial cancer.
U.S. Indications for Trodelvy
In the United States, Trodelvy is indicated for the treatment of adult patients with:
- Unresectable locally advanced or metastatic triple-negative breast cancer (mTNBC) who have received two or more prior systemic therapies, at least one of them for metastatic disease.
- Unresectable locally advanced or metastatic hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative (IHC 0, IHC 1+ or IHC 2+/ISH–) breast cancer who have received endocrine-based therapy and at least two additional systemic therapies in the metastatic setting.
- Locally advanced or metastatic urothelial cancer (mUC) who have previously received a platinum-containing chemotherapy and either programmed death receptor-1 (PD-1) or programmed death-ligand 1 (PD-L1) inhibitor. This indication is approved under accelerated approval based on tumor response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials.
U.S. Important Safety Information for Trodelvy
BOXED WARNING: NEUTROPENIA AND DIARRHEA
- Severe or life-threatening neutropenia may occur. Withhold Trodelvy for absolute neutrophil count below 1500/mm3 or neutropenic fever. Monitor blood cell counts periodically during treatment. Consider G-CSF for secondary prophylaxis. Initiate anti-infective treatment in patients with febrile neutropenia without delay.
- Severe diarrhea may occur. Monitor patients with diarrhea and give fluid and electrolytes as needed. At the onset of diarrhea, evaluate for infectious causes and, if negative, promptly initiate loperamide. If severe diarrhea occurs, withhold Trodelvy until resolved to ≤Grade 1 and reduce subsequent doses.
CONTRAINDICATIONS
- Severe hypersensitivity reaction to Trodelvy.
WARNINGS AND PRECAUTIONS
Neutropenia: Severe, life-threatening, or fatal neutropenia can occur and may require dose modification. Neutropenia occurred in 64% of patients treated with Trodelvy. Grade 3-4 neutropenia occurred in 49% of patients. Febrile neutropenia occurred in 6%. Neutropenic colitis occurred in 1.4%. Withhold Trodelvy for absolute neutrophil count below 1500/mm3 on Day 1 of any cycle or neutrophil count below 1000/mm3 on Day 8 of any cycle. Withhold Trodelvy for neutropenic fever. Administer G-CSF as clinically indicated or indicated in Table 1 of USPI.
Diarrhea: Diarrhea occurred in 64% of all patients treated with Trodelvy. Grade 3-4 diarrhea occurred in 11% of patients. One patient had intestinal perforation following diarrhea. Diarrhea that led to dehydration and subsequent acute kidney injury occurred in 0.7% of all patients. Withhold Trodelvy for Grade 3-4 diarrhea and resume when resolved to ≤Grade 1. At onset, evaluate for infectious causes and if negative, promptly initiate loperamide, 4 mg initially followed by 2 mg with every episode of diarrhea for a maximum of 16 mg daily. Discontinue loperamide 12 hours after diarrhea resolves. Additional supportive measures (e.g., fluid and electrolyte substitution) may also be employed as clinically indicated. Patients who exhibit an excessive cholinergic response to treatment can receive appropriate premedication (e.g., atropine) for subsequent treatments.
Hypersensitivity and Infusion-Related Reactions: Serious hypersensitivity reactions including life-threatening anaphylactic reactions have occurred with Trodelvy. Severe signs and symptoms included cardiac arrest, hypotension, wheezing, angioedema, swelling, pneumonitis, and skin reactions. Hypersensitivity reactions within 24 hours of dosing occurred in 35% of patients. Grade 3-4 hypersensitivity occurred in 2% of patients. The incidence of hypersensitivity reactions leading to permanent discontinuation of Trodelvy was 0.2%. The incidence of anaphylactic reactions was 0.2%. Pre-infusion medication is recommended. Have medications and emergency equipment to treat such reactions available for immediate use. Observe patients closely for hypersensitivity and infusion-related reactions during each infusion and for at least 30 minutes after completion of each infusion. Permanently discontinue Trodelvy for Grade 4 infusion-related reactions.
Nausea and Vomiting: Nausea occurred in 64% of all patients treated with Trodelvy and Grade 3-4 nausea occurred in 3% of these patients. Vomiting occurred in 35% of patients and Grade 3-4 vomiting occurred in 2% of these patients. Premedicate with a two or three drug combination regimen (e.g., dexamethasone with either a 5-HT3 receptor antagonist or an NK1 receptor antagonist as well as other drugs as indicated) for prevention of chemotherapy-induced nausea and vomiting (CINV). Withhold Trodelvy doses for Grade 3 nausea or Grade 3-4 vomiting and resume with additional supportive measures when resolved to Grade ≤1. Additional antiemetics and other supportive measures may also be employed as clinically indicated. All patients should be given take-home medications with clear instructions for prevention and treatment of nausea and vomiting.
Increased Risk of Adverse Reactions in Patients with Reduced UGT1A1 Activity: Patients homozygous for the uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)*28 allele are at increased risk for neutropenia, febrile neutropenia, and anemia and may be at increased risk for other adverse reactions with Trodelvy. The incidence of Grade 3-4 neutropenia was 58% in patients homozygous for the UGT1A1*28, 49% in patients heterozygous for the UGT1A1*28 allele, and 43% in patients homozygous for the wild-type allele. The incidence of Grade 3-4 anemia was 21% in patients homozygous for the UGT1A1*28 allele, 10% in patients heterozygous for the UGT1A1*28 allele, and 9% in patients homozygous for the wild-type allele. Closely monitor patients with known reduced UGT1A1 activity for adverse reactions. Withhold or permanently discontinue Trodelvy based on clinical assessment of the onset, duration and severity of the observed adverse reactions in patients with evidence of acute early-onset or unusually severe adverse reactions, which may indicate reduced UGT1A1 function.
Embryo-Fetal Toxicity: Based on its mechanism of action, Trodelvy can cause teratogenicity and/or embryo-fetal lethality when administered to a pregnant woman. Trodelvy contains a genotoxic component, SN-38, and targets rapidly dividing cells. Advise pregnant women and females of reproductive potential of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with Trodelvy and for 6 months after the last dose. Advise male patients with female partners of reproductive potential to use effective contraception during treatment with Trodelvy and for 3 months after the last dose.
ADVERSE REACTIONS
In the pooled safety population, the most common (≥ 25%) adverse reactions including laboratory abnormalities were decreased leukocyte count (84%), decreased neutrophil count (75%), decreased hemoglobin (69%), diarrhea (64%), nausea (64%), decreased lymphocyte count (63%), fatigue (51%), alopecia (45%), constipation (37%), increased glucose (37%), decreased albumin (35%), vomiting (35%), decreased appetite (30%), decreased creatinine clearance (28%), increased alkaline phosphatase (28%), decreased magnesium (27%), decreased potassium (26%), and decreased sodium (26%).
In the ASCENT study (locally advanced or metastatic triple-negative breast cancer), the most common adverse reactions (incidence ≥25%) were fatigue, diarrhea, nausea, alopecia, constipation, vomiting, abdominal pain, and decreased appetite. The most frequent serious adverse reactions (SAR) (>1%) were neutropenia (7%), diarrhea (4%), and pneumonia (3%). SAR were reported in 27% of patients, and 5% discontinued therapy due to adverse reactions. The most common Grade 3-4 lab abnormalities (incidence ≥25%) in the ASCENT study were reduced neutrophils, leukocytes, and lymphocytes.
In the TROPiCS-02 study (locally advanced or metastatic HR-positive, HER2-negative breast cancer), the most common adverse reactions (incidence ≥25%) were diarrhea, fatigue, nausea, alopecia, and constipation. The most frequent serious adverse reactions (SAR) (>1%) were diarrhea (5%), febrile neutropenia (4%), neutropenia (3%), abdominal pain, colitis, neutropenic colitis, pneumonia, and vomiting (each 2%). SAR were reported in 28% of patients, and 6% discontinued therapy due to adverse reactions. The most common Grade 3-4 lab abnormalities (incidence ≥25%) in the TROPiCS-02 study were reduced neutrophils and leukocytes.
In the TROPHY study (locally advanced or metastatic urothelial cancer), the most common adverse reactions (incidence ≥25%) were diarrhea, fatigue, nausea, any infection, alopecia, decreased appetite, constipation, vomiting, rash, and abdominal pain. The most frequent serious adverse reactions (SAR) (≥5%) were infection (18%), neutropenia (12%, including febrile neutropenia in 10%), acute kidney injury (6%), urinary tract infection (6%), and sepsis or bacteremia (5%). SAR were reported in 44% of patients, and 10% discontinued due to adverse reactions. The most common Grade 3-4 lab abnormalities (incidence ≥25%) in the TROPHY study were reduced neutrophils, leukocytes, and lymphocytes.
DRUG INTERACTIONS
UGT1A1 Inhibitors: Concomitant administration of Trodelvy with inhibitors of UGT1A1 may increase the incidence of adverse reactions due to potential increase in systemic exposure to SN-38. Avoid administering UGT1A1 inhibitors with Trodelvy.
UGT1A1 Inducers: Exposure to SN-38 may be reduced in patients concomitantly receiving UGT1A1 enzyme inducers. Avoid administering UGT1A1 inducers with Trodelvy.
Please see full Prescribing Information, including BOXED WARNING.
About Yescarta
Please see full Prescribing Information, including BOXED WARNING and Medication Guide.
YESCARTA is a CD19-directed genetically modified autologous T cell immunotherapy indicated for the treatment of:
- Adult patients with large B-cell lymphoma that is refractory to first-line chemoimmunotherapy or that relapses within 12 months of first-line chemoimmunotherapy.
- Adult patients with relapsed or refractory large B-cell lymphoma after two or more lines of systemic therapy, including diffuse large B-cell lymphoma (DLBCL) not otherwise specified, primary mediastinal large B-cell lymphoma, high grade B-cell lymphoma, and DLBCL arising from follicular lymphoma.
Limitations of Use: YESCARTA is not indicated for the treatment of patients with primary central nervous system lymphoma.
- Adult patients with relapsed or refractory follicular lymphoma (FL) after two or more lines of systemic therapy. This indication is approved under accelerated approval based on response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trial(s).
U.S. IMPORTANT SAFETY INFORMATION
BOXED WARNING: CYTOKINE RELEASE SYNDROME AND NEUROLOGIC TOXICITIES
- Cytokine Release Syndrome (CRS), including fatal or life-threatening reactions, occurred in patients receiving YESCARTA. Do not administer YESCARTA to patients with active infection or inflammatory disorders. Treat severe or life-threatening CRS with tocilizumab or tocilizumab and corticosteroids.
- Neurologic toxicities, including fatal or life-threatening reactions, occurred in patients receiving YESCARTA, including concurrently with CRS or after CRS resolution. Monitor for neurologic toxicities after treatment with YESCARTA. Provide supportive care and/or corticosteroids as needed.
- YESCARTA is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the YESCARTA and TECARTUS REMS Program.
CYTOKINE RELEASE SYNDROME (CRS)
CRS, including fatal or life-threatening reactions, occurred. CRS occurred in 90% (379/422) of patients with non-Hodgkin lymphoma (NHL), including ≥ Grade 3 in 9%. CRS occurred in 93% (256/276) of patients with large B-cell lymphoma (LBCL), including ≥ Grade 3 in 9%. Among patients with LBCL who died after receiving YESCARTA, 4 had ongoing CRS events at the time of death. For patients with LBCL in ZUMA-1, the median time to onset of CRS was 2 days following infusion (range: 1-12 days) and the median duration was 7 days (range: 2-58 days). For patients with LBCL in ZUMA-7, the median time to onset of CRS was 3 days following infusion (range: 1-10 days) and the median duration was 7 days (range: 2-43 days). CRS occurred in 84% (123/146) of patients with indolent non-Hodgkin lymphoma (iNHL) in ZUMA-5, including ≥ Grade 3 in 8%. Among patients with iNHL who died after receiving YESCARTA, 1 patient had an ongoing CRS event at the time of death. The median time to onset of CRS was 4 days (range: 1-20 days) and median duration was 6 days (range: 1-27 days) for patients with iNHL.
Key manifestations of CRS (≥ 10%) in all patients combined included fever (85%), hypotension (40%), tachycardia (32%), chills (22%), hypoxia (20%), headache (15%), and fatigue (12%). Serious events that may be associated with CRS include cardiac arrhythmias (including atrial fibrillation and ventricular tachycardia), renal insufficiency, cardiac failure, respiratory failure, cardiac arrest, capillary leak syndrome, multi-organ failure, and hemophagocytic lymphohistiocytosis/macrophage activation syndrome.
The impact of tocilizumab and/or corticosteroids on the incidence and severity of CRS was assessed in 2 subsequent cohorts of LBCL patients in ZUMA-1. Among patients who received tocilizumab and/or corticosteroids for ongoing Grade 1 events, CRS occurred in 93% (38/41), including 2% (1/41) with Grade 3 CRS; no patients experienced a Grade 4 or 5 event. The median time to onset of CRS was 2 days (range: 1-8 days) and the median duration of CRS was 7 days (range: 2-16 days). Prophylactic treatment with corticosteroids was administered to a cohort of 39 patients for 3 days beginning on the day of infusion of YESCARTA. Thirty-one of the 39 patients (79%) developed CRS and were managed with tocilizumab and/or therapeutic doses of corticosteroids with no patients developing ≥ Grade 3 CRS. The median time to onset of CRS was 5 days (range: 1-15 days) and the median duration of CRS was 4 days (range: 1-10 days). Although there is no known mechanistic explanation, consider the risk and benefits of prophylactic corticosteroids in the context of pre-existing comorbidities for the individual patient and the potential for the risk of Grade 4 and prolonged neurologic toxicities.
Ensure that 2 doses of tocilizumab are available prior to YESCARTA infusion. Monitor patients for signs and symptoms of CRS at least daily for 7 days at the certified healthcare facility, and for 4 weeks thereafter. Counsel patients to seek immediate medical attention should signs or symptoms of CRS occur at any time. At the first sign of CRS, institute treatment with supportive care, tocilizumab, or tocilizumab and corticosteroids as indicated.
NEUROLOGIC TOXICITIES
Neurologic toxicities (including immune effector cell-associated neurotoxicity syndrome) that were fatal or life-threatening occurred. Neurologic toxicities occurred in 78% (330/422) of all patients with NHL receiving YESCARTA, including ≥ Grade 3 in 25%. Neurologic toxicities occurred in 87% (94/108) of patients with LBCL in ZUMA-1, including ≥ Grade 3 in 31% and in 74% (124/168) of patients in ZUMA-7 including ≥ Grade 3 in 25%. The median time to onset was 4 days (range: 1-43 days) and the median duration was 17 days for patients with LBCL in ZUMA-1. The median time to onset for neurologic toxicity was 5 days (range: 1-133 days) and median duration was 15 days in patients with LBCL in ZUMA-7. Neurologic toxicities occurred in 77% (112/146) of patients with iNHL, including ≥ Grade 3 in 21%. The median time to onset was 6 days (range: 1-79 days) and the median duration was 16 days.
Contacts
Jacquie Ross, Investors
[email protected]
Meaghan Smith, Gilead Media
[email protected]
Anna Padula, Kite Media
[email protected]