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Gilead's Trodelvy, with Keytruda, cuts breast cancer risk by 35% in trial
Gilead's Trodelvy, with Keytruda, cuts breast cancer risk by 35% in trial

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Gilead's Trodelvy, with Keytruda, cuts breast cancer risk by 35% in trial

By Deena Beasley (Reuters) -Gilead Sciences' Trodelvy in combination with Merck's blockbuster immunotherapy Keytruda lowered the risk of an aggressive type of breast cancer worsening by 35% when used as an initial treatment, according to results of a large trial presented on Saturday. The data is likely to change how patients are treated following a diagnosis for advanced triple-negative breast cancer, one expert said. After a median follow-up of 14 months, patients treated with Trodelvy, a so-called antibody-drug conjugate, and Keytruda went 11.2 months without their cancer progressing, a measure known as progress-free survival. That compared with PFS of 7.8 months for those given the standard treatment of chemotherapy and Keytruda, researchers said. Patients given the Trodelvy/Keytruda combination responded to the treatment for a median of 16.5 months, compared with 9.2 months for the chemo group, according to full results of the study presented at the American Society of Clinical Oncology scientific meeting in Chicago. The researchers said patients are still being followed to see if the regimen has an impact on overall survival. Gilead previously said the Phase 3 study in 443 patients with advanced triple-negative breast cancer whose tumors express PD-L1 - the protein targeted by drugs like Keytruda - had met its goal. The findings suggest that the combination of Trodelvy and Keytruda "will likely become a new front-line standard of care in this setting,' Dr. Jane Lowe Meisel, co-director of breast oncology at Emory University School of Medicine and a designated ASCO expert said in a statement. ASCO estimates that about 10% of breast cancers in the United States are triple-negative. That tends to be more difficult to treat than hormone-sensitive subtypes, because it does not have the common biomarkers used to guide treatment, the tumors are often larger, and the recurrence rate is high. The medical group said that about 40% of triple-negative breast cancers are also PD-L1 positive, making them candidates for Keytruda. Antibody-drug conjugates like Trodelvy are designed to deliver an anti-cancer drug more precisely to malignant cells, causing less damage to healthy cells than chemotherapy. Serious side effects for Trodelvy included neutropenia, a condition caused by cancer treatments that lower levels of infection-fighting white blood cells, reported in 43% of patients, and diarrhea in 10%. In the chemotherapy group, the incidence of neutropenia was 45%, while 16% of patients had anemia and 14% had low blood platelet counts. Trodelvy is already approved for patients with advanced triple-negative breast cancer who had two or more prior therapies, and for previously treated hormone-receptor-positive, HER2-negative metastatic breast cancer. Gilead is conducting several other Trodelvy studies, including a trial of the drug as an initial treatment for triple-negative breast cancer patients who do not express PD-L1. (Reporting By Deena BeasleyEditing by Bill Berkrot)

Trodelvy® Plus Keytruda® Reduces Risk of Disease Progression or Death by 35% Versus Keytruda and Chemotherapy in First-Line PD-L1+ Metastatic Triple-Negative Breast Cancer
Trodelvy® Plus Keytruda® Reduces Risk of Disease Progression or Death by 35% Versus Keytruda and Chemotherapy in First-Line PD-L1+ Metastatic Triple-Negative Breast Cancer

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time8 hours ago

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Trodelvy® Plus Keytruda® Reduces Risk of Disease Progression or Death by 35% Versus Keytruda and Chemotherapy in First-Line PD-L1+ Metastatic Triple-Negative Breast Cancer

– First Pivotal Phase 3 Trial to Show Superiority of a TROP-2 Antibody-Drug Conjugate, Trodelvy, Plus Keytruda Versus Standard of Care in 1L Metastatic TNBC – – Early Trend in Improvement in Overall Survival Observed – FOSTER CITY, Calif., May 31, 2025--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq: GILD) today announced Trodelvy® (sacituzumab govitecan-hziy) plus Keytruda® (pembrolizumab) reduced the risk of disease progression or death by 35% (HR: 0.65) versus standard of care Keytruda plus chemotherapy in first-line treatment for patients with PD-L1+ (CPS ≥10) metastatic triple-negative breast cancer (TNBC). Trodelvy when given in combination with Keytruda resulted in a median progression-free survival (PFS) of 11.2 months vs 7.8 months when Keytruda was given in combination with chemotherapy. These data from the pivotal Phase 3 ASCENT-04/KEYNOTE-D19 study will be presented today as a late-breaking oral presentation at the 2025 ASCO Annual Congress (Abstract #LBA109). "These results are an important advancement for patients with PD-L1–positive metastatic triple-negative breast cancer, a population for whom first-line options remain limited," said Sara Tolaney, MD, MPH, Dana-Farber Cancer Institute and primary investigator of the ASCENT-04 study. "By combining sacituzumab govitecan with pembrolizumab, we're seeing meaningful gains in progression-free survival and a promising trend in overall survival—findings that could support a new frontline standard of care for this aggressive disease." "The ASCENT-04 results build on Gilead's aspiration of transforming the treatment of breast cancer with Trodelvy in earlier lines of therapy," said Dietmar Berger, MD, PhD. "Together with the recently reported clinically meaningful topline results from our first-line monotherapy study, these data reinforce our confidence in Trodelvy's utility both as a single agent and in combination with immunotherapy in the frontline metastatic TNBC setting. We are actively engaging with the FDA to explore a potential regulatory path forward for this combination for the benefit of patients." For the primary endpoint, the median PFS was 11.2 months (95% CI: 9.3-16.7) with Trodelvy plus Keytruda compared to 7.8 months (95% CI: 7.3-9.3) with Keytruda plus chemotherapy, with a median follow-up of 14 months. A highly statistically significant and clinically meaningful improvement was observed with Trodelvy plus Keytruda (n=221), showing a 35% reduction in the risk of disease progression or death (HR: 0.65; p<0.001) in the intent to treat population compared to standard of care Keytruda plus chemotherapy combination (n=222). The PFS benefit was generally consistent across key prespecified subgroups. A numerically higher overall response rate was observed for the Trodelvy plus Keytruda combination [60% (95% CI: 52.9-66.3) versus 53% (95% CI: 46.4-59.9)], including 13% and 8% with a complete response, respectively, in the Trodelvy plus Keytruda and Keytruda plus chemotherapy arms. Notably, a substantially longer duration of response was observed with Trodelvy plus Keytruda [16.5 months (95% CI: 12.7-19.5) versus 9.2 months (95% CI: 7.6-11.3)]. Encouraging trends in overall survival (OS) were also observed, but data are immature at the time of PFS primary analysis. Overall survival follow-up remains ongoing and will continue to be monitored as a key secondary endpoint. The safety profile of Trodelvy plus Keytruda in the ASCENT-04 study was consistent with the known safety profile of each agent. No new safety signals were identified with the combination and the combination did not exacerbate the safety profile of either therapy. The most frequent (≥10% of patients) grade ≥3 treatment-emergent adverse events with Trodelvy plus Keytruda were neutropenia (43%) and diarrhea (10%), and with Keytruda plus chemotherapy were neutropenia (45%), anemia (16%) and thrombocytopenia (14%). Fewer patients discontinued treatment due to adverse events on the Trodelvy plus Keytruda arm than with Keytruda plus chemotherapy (12% vs. 31%). In addition to ASCENT-04, Gilead on May 23 announced topline results from ASCENT-03 demonstrating a highly statistically significant and clinically meaningful improvement in PFS compared to chemotherapy in patients with first-line metastatic TNBC who are not candidates for PD-1/PD-L1 inhibitors. Detailed results from the ASCENT-03 study will be presented at a future medical meeting and discussed with regulatory authorities. The use of Trodelvy plus Keytruda in patients with first-line PD-L1+ metastatic TNBC and Trodelvy as monotherapy in patients with first-line metastatic TNBC who are not candidates for PD-1/PD-L1 inhibitors are investigational, and the safety and efficacy of these uses have not been established. KEYTRUDA® is a registered trademark of Merck Sharp & Dohme LLC., a subsidiary of Merck & Co., Inc., Rahway, NJ, USA. About Triple-Negative Breast Cancer with PD-L1+ Tumors TNBC is the most aggressive type of breast cancer and has historically been difficult to treat, accounting for approximately 15% of all breast cancers. TNBC is diagnosed more frequently in younger and premenopausal women and is more prevalent in Black and Hispanic women. TNBC cells do not have estrogen and progesterone receptors and have limited HER2. Due to the nature of TNBC, treatment options are extremely limited compared with other breast cancer types. TNBC has a higher chance of recurrence and metastases than other breast cancer types. The average time to metastatic recurrence for TNBC is approximately 2.6 years compared with 5 years for other breast cancers, and the relative five-year survival rate is much lower. Among women with mTNBC, the five-year survival rate is 12%, compared with 28% for those with other types of mBC. Despite progress in treatment, first-line mTNBC has seen limited new approvals in recent years for tumors that express PD-L1+, and additional options are urgently needed. Despite recent advances, over 50% of patients do not receive treatment beyond first-line, reinforcing the urgent need for new options to help improve patient outcomes. Breast cancers expressing PD-L1 are overall more aggressive and associated with reduced survival time. About the ASCENT-04/KEYNOTE-D19 Study In 2021, Gilead entered a collaboration with Merck & Co. to investigate sacituzumab govitecan in combination with pembrolizumab in the Phase 3 trial, ASCENT-04/KEYNOTE-D19. The ASCENT-04/KEYNOTE-D19 study is a global, open-label, randomized Phase 3 trial evaluating the efficacy and safety of sacituzumab govitecan in combination with pembrolizumab compared with treatment of chemotherapy plus pembrolizumab in patients with previously untreated, inoperable locally advanced or metastatic triple-negative breast cancer (TNBC) whose tumors express PD-L1. The study enrolled 443 patients across multiple study sites. Patients were randomized in a 1:1 ratio to receive either sacituzumab govitecan (10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle) plus pembrolizumab (200 mg intravenously on Day 1 of a 21-day cycle) or chemotherapy plus pembrolizumab. The chemotherapy regimen included gemcitabine plus carboplatin, paclitaxel, or nab-paclitaxel. Treatment continued until blinded independent central review (BICR)-verified disease progression or unacceptable toxicity. Patients randomized to chemotherapy were allowed to crossover and receive sacituzumab govitecan upon disease progression. The primary endpoint of the study is progression-free survival (PFS) as determined by BICR using RECIST v1.1. Secondary endpoints include overall survival (OS), objective response rate (ORR), duration of response (DOR), time to onset of response (TTR), patient-reported outcomes (PROs), and safety. More information about ASCENT-04/KEYNOTE-D19 is available at NCT05382286. 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 lung 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 tumor microenvironment through a bystander effect. Trodelvy is currently approved in more than 50 countries for second-line or later metastatic triple-negative breast cancer (TNBC) patients and in more than 40 countries for certain patients with pre-treated HR+/HER2- metastatic breast cancer. Trodelvy is currently being evaluated in multiple ongoing Phase 3 trials across a range of tumor types with high Trop-2 expression. These studies with Trodelvy, both in monotherapy and in combination with pembrolizumab, involve earlier lines of treatment for TNBC and HR+/HER2- breast cancer—including in curative settings—as well as in lung and gynecologic cancers, where previous proof-of-concept studies have demonstrated clinical activity. INDICATIONS TRODELVY® (sacituzumab govitecan-hziy) is a Trop-2-directed antibody and topoisomerase inhibitor conjugate 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. IMPORTANT SAFETY INFORMATION BOXED WARNING: NEUTROPENIA AND DIARRHEA TRODELVY can cause severe, life-threatening, or fatal neutropenia. Withhold TRODELVY for absolute neutrophil count below 1500/mm3 or neutropenic fever. Monitor blood cell counts periodically during treatment. Primary prophylaxis with G-CSF is recommended for all patients at increased risk of febrile neutropenia. Initiate anti-infective treatment in patients with febrile neutropenia without delay. TRODELVY can cause severe diarrhea. 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 as early as the first cycle of treatment 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%. Primary prophylaxis with G-CSF is recommended starting in the first cycle of treatment in all patients at increased risk of febrile neutropenia, including older patients, patients with previous neutropenia, poor performance status, organ dysfunction, or multiple comorbidities. Monitor absolute neutrophil count (ANC) during treatment. Withhold TRODELVY for ANC below 1500/mm3 on Day 1 of any cycle or below 1000/mm3 on Day 8 of any cycle. Withhold TRODELVY for neutropenic fever. Treat neutropenia with G-CSF and administer prophylaxis in subsequent cycles as clinically indicated or indicated in Table 2 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: TRODELVY can cause serious hypersensitivity reactions including life-threatening anaphylactic reactions. 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: TRODELVY is emetogenic and can cause severe 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. 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 Gilead Sciences Gilead Sciences, Inc. is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. The company is committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis, COVID-19, cancer, and inflammation. Gilead operates in more than 35 countries worldwide, with headquarters in Foster City, Calif. Forward-Looking Statements This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks, uncertainties and other factors, including Gilead's ability to initiate, progress or complete clinical trials or studies within currently anticipated timelines or at all, and the possibility of unfavorable results from ongoing and additional clinical trials or studies, including those involving Trodelvy (such as ASCENT-03, ASCENT-04 and ASCENT-05); uncertainties relating to regulatory applications and related filing and approval timelines, including potential applications for programs and/or indications currently under evaluation; the possibility that Gilead may make a strategic decision to discontinue development of these programs and, as a result, these programs may never be successfully commercialized for the indications currently under evaluation; and any assumptions underlying any of the foregoing. These and other risks, uncertainties and factors are described in detail in Gilead's Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, as filed with the U.S. Securities and Exchange Commission. These risks, uncertainties and other factors could cause actual results to differ materially from those referred to in the forward-looking statements. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. The reader is cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties and is cautioned not to place undue reliance on these forward-looking statements. All forward-looking statements are based on information currently available to Gilead, and Gilead assumes no obligation and disclaims any intent to update any such forward-looking statements. Trodelvy, Gilead and the Gilead logo are trademarks of Gilead Sciences, Inc., or its related companies. U.S. Prescribing Information for Trodelvy, including BOXED WARNING, is available at For more information about Gilead, please visit the company's website at follow Gilead on X/Twitter (@Gilead Sciences) and LinkedIn (@Gilead-Sciences). View source version on Contacts Blair Baumwell, Mediapublic_affairs@ Jacquie Ross, Investorsinvestor_relations@ Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data

Trodelvy ® Plus Keytruda ® Reduces Risk of Disease Progression or Death by 35% Versus Keytruda and Chemotherapy in First-Line PD-L1+ Metastatic Triple-Negative Breast Cancer
Trodelvy ® Plus Keytruda ® Reduces Risk of Disease Progression or Death by 35% Versus Keytruda and Chemotherapy in First-Line PD-L1+ Metastatic Triple-Negative Breast Cancer

Business Wire

time8 hours ago

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  • Business Wire

Trodelvy ® Plus Keytruda ® Reduces Risk of Disease Progression or Death by 35% Versus Keytruda and Chemotherapy in First-Line PD-L1+ Metastatic Triple-Negative Breast Cancer

FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq: GILD) today announced Trodelvy ® (sacituzumab govitecan-hziy) plus Keytruda ® (pembrolizumab) reduced the risk of disease progression or death by 35% (HR: 0.65) versus standard of care Keytruda plus chemotherapy in first-line treatment for patients with PD-L1+ (CPS ≥10) metastatic triple-negative breast cancer (TNBC). Trodelvy when given in combination with Keytruda resulted in a median progression-free survival (PFS) of 11.2 months vs 7.8 months when Keytruda was given in combination with chemotherapy. These data from the pivotal Phase 3 ASCENT-04/KEYNOTE-D19 study will be presented today as a late-breaking oral presentation at the 2025 ASCO Annual Congress (Abstract #LBA109). 'These results are an important advancement for patients with PD-L1–positive metastatic triple-negative breast cancer, a population for whom first-line options remain limited,' said Sara Tolaney, MD, MPH, Dana-Farber Cancer Institute and primary investigator of the ASCENT-04 study. 'By combining sacituzumab govitecan with pembrolizumab, we're seeing meaningful gains in progression-free survival and a promising trend in overall survival—findings that could support a new frontline standard of care for this aggressive disease.' 'The ASCENT-04 results build on Gilead's aspiration of transforming the treatment of breast cancer with Trodelvy in earlier lines of therapy,' said Dietmar Berger, MD, PhD. 'Together with the recently reported clinically meaningful topline results from our first-line monotherapy study, these data reinforce our confidence in Trodelvy's utility both as a single agent and in combination with immunotherapy in the frontline metastatic TNBC setting. We are actively engaging with the FDA to explore a potential regulatory path forward for this combination for the benefit of patients.' For the primary endpoint, the median PFS was 11.2 months (95% CI: 9.3-16.7) with Trodelvy plus Keytruda compared to 7.8 months (95% CI: 7.3-9.3) with Keytruda plus chemotherapy, with a median follow-up of 14 months. A highly statistically significant and clinically meaningful improvement was observed with Trodelvy plus Keytruda (n=221), showing a 35% reduction in the risk of disease progression or death (HR: 0.65; p<0.001) in the intent to treat population compared to standard of care Keytruda plus chemotherapy combination (n=222). The PFS benefit was generally consistent across key prespecified subgroups. A numerically higher overall response rate was observed for the Trodelvy plus Keytruda combination [60% (95% CI: 52.9-66.3) versus 53% (95% CI: 46.4-59.9)], including 13% and 8% with a complete response, respectively, in the Trodelvy plus Keytruda and Keytruda plus chemotherapy arms. Notably, a substantially longer duration of response was observed with Trodelvy plus Keytruda [16.5 months (95% CI: 12.7-19.5) versus 9.2 months (95% CI: 7.6-11.3)]. Encouraging trends in overall survival (OS) were also observed, but data are immature at the time of PFS primary analysis. Overall survival follow-up remains ongoing and will continue to be monitored as a key secondary endpoint. The safety profile of Trodelvy plus Keytruda in the ASCENT-04 study was consistent with the known safety profile of each agent. No new safety signals were identified with the combination and the combination did not exacerbate the safety profile of either therapy. The most frequent (≥10% of patients) grade ≥3 treatment-emergent adverse events with Trodelvy plus Keytruda were neutropenia (43%) and diarrhea (10%), and with Keytruda plus chemotherapy were neutropenia (45%), anemia (16%) and thrombocytopenia (14%). Fewer patients discontinued treatment due to adverse events on the Trodelvy plus Keytruda arm than with Keytruda plus chemotherapy (12% vs. 31%). In addition to ASCENT-04, Gilead on May 23 announced topline results from ASCENT-03 demonstrating a highly statistically significant and clinically meaningful improvement in PFS compared to chemotherapy in patients with first-line metastatic TNBC who are not candidates for PD-1/PD-L1 inhibitors. Detailed results from the ASCENT-03 study will be presented at a future medical meeting and discussed with regulatory authorities. The use of Trodelvy plus Keytruda in patients with first-line PD-L1+ metastatic TNBC and Trodelvy as monotherapy in patients with first-line metastatic TNBC who are not candidates for PD-1/PD-L1 inhibitors are investigational, and the safety and efficacy of these uses have not been established. KEYTRUDA ® is a registered trademark of Merck Sharp & Dohme LLC., a subsidiary of Merck & Co., Inc., Rahway, NJ, USA. About Triple-Negative Breast Cancer with PD-L1+ Tumors TNBC is the most aggressive type of breast cancer and has historically been difficult to treat, accounting for approximately 15% of all breast cancers. TNBC is diagnosed more frequently in younger and premenopausal women and is more prevalent in Black and Hispanic women. TNBC cells do not have estrogen and progesterone receptors and have limited HER2. Due to the nature of TNBC, treatment options are extremely limited compared with other breast cancer types. TNBC has a higher chance of recurrence and metastases than other breast cancer types. The average time to metastatic recurrence for TNBC is approximately 2.6 years compared with 5 years for other breast cancers, and the relative five-year survival rate is much lower. Among women with mTNBC, the five-year survival rate is 12%, compared with 28% for those with other types of mBC. Despite progress in treatment, first-line mTNBC has seen limited new approvals in recent years for tumors that express PD-L1+, and additional options are urgently needed. Despite recent advances, over 50% of patients do not receive treatment beyond first-line, reinforcing the urgent need for new options to help improve patient outcomes. Breast cancers expressing PD-L1 are overall more aggressive and associated with reduced survival time. About the ASCENT-04/KEYNOTE-D19 Study In 2021, Gilead entered a collaboration with Merck & Co. to investigate sacituzumab govitecan in combination with pembrolizumab in the Phase 3 trial, ASCENT-04/KEYNOTE-D19. The ASCENT-04/KEYNOTE-D19 study is a global, open-label, randomized Phase 3 trial evaluating the efficacy and safety of sacituzumab govitecan in combination with pembrolizumab compared with treatment of chemotherapy plus pembrolizumab in patients with previously untreated, inoperable locally advanced or metastatic triple-negative breast cancer (TNBC) whose tumors express PD-L1. The study enrolled 443 patients across multiple study sites. Patients were randomized in a 1:1 ratio to receive either sacituzumab govitecan (10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle) plus pembrolizumab (200 mg intravenously on Day 1 of a 21-day cycle) or chemotherapy plus pembrolizumab. The chemotherapy regimen included gemcitabine plus carboplatin, paclitaxel, or nab-paclitaxel. Treatment continued until blinded independent central review (BICR)-verified disease progression or unacceptable toxicity. Patients randomized to chemotherapy were allowed to crossover and receive sacituzumab govitecan upon disease progression. The primary endpoint of the study is progression-free survival (PFS) as determined by BICR using RECIST v1.1. Secondary endpoints include overall survival (OS), objective response rate (ORR), duration of response (DOR), time to onset of response (TTR), patient-reported outcomes (PROs), and safety. More information about ASCENT-04/KEYNOTE-D19 is available at NCT05382286. 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 lung 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 tumor microenvironment through a bystander effect. Trodelvy is currently approved in more than 50 countries for second-line or later metastatic triple-negative breast cancer (TNBC) patients and in more than 40 countries for certain patients with pre-treated HR+/HER2- metastatic breast cancer. Trodelvy is currently being evaluated in multiple ongoing Phase 3 trials across a range of tumor types with high Trop-2 expression. These studies with Trodelvy, both in monotherapy and in combination with pembrolizumab, involve earlier lines of treatment for TNBC and HR+/HER2- breast cancer—including in curative settings—as well as in lung and gynecologic cancers, where previous proof-of-concept studies have demonstrated clinical activity. INDICATIONS TRODELVY ® (sacituzumab govitecan-hziy) is a Trop-2-directed antibody and topoisomerase inhibitor conjugate 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. IMPORTANT SAFETY INFORMATION BOXED WARNING: NEUTROPENIA AND DIARRHEA TRODELVY can cause severe, life-threatening, or fatal neutropenia. Withhold TRODELVY for absolute neutrophil count below 1500/mm 3 or neutropenic fever. Monitor blood cell counts periodically during treatment. Primary prophylaxis with G-CSF is recommended for all patients at increased risk of febrile neutropenia. Initiate anti-infective treatment in patients with febrile neutropenia without delay. TRODELVY can cause severe diarrhea. 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 as early as the first cycle of treatment 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%. Primary prophylaxis with G-CSF is recommended starting in the first cycle of treatment in all patients at increased risk of febrile neutropenia, including older patients, patients with previous neutropenia, poor performance status, organ dysfunction, or multiple comorbidities. Monitor absolute neutrophil count (ANC) during treatment. Withhold TRODELVY for ANC below 1500/mm 3 on Day 1 of any cycle or below 1000/mm 3 on Day 8 of any cycle. Withhold TRODELVY for neutropenic fever. Treat neutropenia with G-CSF and administer prophylaxis in subsequent cycles as clinically indicated or indicated in Table 2 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: TRODELVY can cause serious hypersensitivity reactions including life-threatening anaphylactic reactions. 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: TRODELVY is emetogenic and can cause severe 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 NK 1 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. 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 Gilead Sciences Gilead Sciences, Inc. is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. The company is committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis, COVID-19, cancer, and inflammation. Gilead operates in more than 35 countries worldwide, with headquarters in Foster City, Calif. Forward-Looking Statements This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks, uncertainties and other factors, including Gilead's ability to initiate, progress or complete clinical trials or studies within currently anticipated timelines or at all, and the possibility of unfavorable results from ongoing and additional clinical trials or studies, including those involving Trodelvy (such as ASCENT-03, ASCENT-04 and ASCENT-05); uncertainties relating to regulatory applications and related filing and approval timelines, including potential applications for programs and/or indications currently under evaluation; the possibility that Gilead may make a strategic decision to discontinue development of these programs and, as a result, these programs may never be successfully commercialized for the indications currently under evaluation; and any assumptions underlying any of the foregoing. These and other risks, uncertainties and factors are described in detail in Gilead's Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, as filed with the U.S. Securities and Exchange Commission. These risks, uncertainties and other factors could cause actual results to differ materially from those referred to in the forward-looking statements. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. The reader is cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties and is cautioned not to place undue reliance on these forward-looking statements. All forward-looking statements are based on information currently available to Gilead, and Gilead assumes no obligation and disclaims any intent to update any such forward-looking statements. Trodelvy, Gilead and the Gilead logo are trademarks of Gilead Sciences, Inc., or its related companies. . For more information about Gilead, please visit the company's website at follow Gilead on X/Twitter (@Gilead Sciences) and LinkedIn (@Gilead-Sciences).

Gilead Sciences Stock Gains 21% YTD: Buy, Sell or Hold?
Gilead Sciences Stock Gains 21% YTD: Buy, Sell or Hold?

Globe and Mail

timea day ago

  • Business
  • Globe and Mail

Gilead Sciences Stock Gains 21% YTD: Buy, Sell or Hold?

Biotech giant Gilead Sciences, Inc. GILD has put up a strong performance amid a volatile market. Shares of this biotech giant have gained 21.1% year to date against the industry 's decline of 4.7%. The stock has outperformed the sector and the S&P 500 Index in this timeframe. Gilead Outperforms Industry, Sector & S&P 500 Index Gilead Sciences is a dominant player in the HIV market with market-leading treatments. Its diverse portfolio also includes drugs for liver, hematology/oncology and inflammation/respiratory diseases. Approval of new drugs, encouraging pipeline progress and positive data readouts have boosted investors' sentiment in the past six months. However, the oncology business is under pressure. Let's delve into GILD's strengths and weaknesses to analyze how to play the stock at present. GILD's Leading HIV Franchise Will Continue Its Momentum Gilead's flagship drug, Biktarvy (bictegravir 50 mg/emtricitabine 200 mg/tenofovir alafenamide 25 mg, BIC/FTC/TAF), for HIV-1 infection has become the number-one prescribed regimen for both treatment-naïve and switch patients. Biktarvy accounts for over 51% share of the treatment market in the United States and should maintain momentum for GILD in the upcoming quarters. Descovy (FTC 200 mg/TAF 25 mg) for pre-exposure prophylaxis (PrEP) is also witnessing good uptake. It maintains over 40% market share in the PrEP market in the United States. Gilead's efforts to innovate its HIV portfolio are impressive. Late-stage studies, PURPOSE 1 and PURPOSE 2, validated lenacapavir's potential to prevent HIV. The FDA accepted new drug application submissions for twice-yearly lenacapavir for HIV prevention under priority review, with a target action date of June 19, 2025. The European Medicines Agency validated the Marketing Authorization Application and EU-Medicines for All application for twice-yearly lenacapavir for HIV prevention. The successful development and potential approval of lenacapavir for the prevention of the disease should solidify Gilead's HIV franchise. Per GILD, lenacapavir, with its twice-yearly dosing, could set a new bar for HIV prevention and allow PrEP to reach a larger number of people who could benefit from a prevention regimen. Livdelzi Approval Strengthens GILD's Liver Disease Portfolio The FDA approval of seladelpar for the treatment of primary biliary cholangitis (PBC) has strengthened GILD's liver disease portfolio and validated its CymaBay acquisition. The drug's initial uptake is encouraging. The candidate was approved under the brand name Livdelzi. Gilead also recently received conditional marketing authorization from the European Commission for seladelpar for the treatment of PBC. Challenges for GILD's Oncology Business Gilead's oncology portfolio, comprising the Cell Therapy franchise and breast cancer drug Trodelvy, has diversified its overall business. However, the Cell Therapy franchise, comprising Yescarta and Tecartus, is currently under pressure due to competitive headwinds in the United States and Europe that are expected to continue in 2025. Breast cancer drug Trodelvy's sales were lower than expected in the first quarter due to inventory dynamics. Gilead announced positive top-line results from the phase III ASCENT-03 study on Trodelvy, which showed highly statistically significant and clinically meaningful improvement in progression-free survival in patients with first-line metastatic triple-negative breast cancer (mTNBC) who are not candidates for checkpoint inhibitors. The potential launch of anito-cel in multiple myeloma and Trodelvy in first-line mTNBC in 2026 will strengthen the company's oncology business. GILD's Valuation and Estimate Revision From a valuation standpoint, GILD is expensive. According to the price/earnings ratio, GILD's shares currently trade at 13.70x forward earnings, lower than the large-cap pharma industry's average of 14.62X but higher than its mean of 10.53X. Earnings estimates for GILD have moved north in the past 60 days. The bottom-line estimate for 2025 has increased to $7.91 from $7.87, while that for 2026 has improved to $8.39 from $8.31. Stay Invested in GILD Large biotech companies are generally considered safe havens for investors interested in this sector as they are well equipped to weather the uncertain macroenvironment. GILD is one of the dominant players in the HIV market. Gilead's efforts to constantly innovate its HIV portfolio should enable it to maintain growth amid competition from GSK plc GSK. GILD has also collaborated with Merck MRK to evaluate the investigational combination of islatravir and lenacapavir for the treatment of HIV. The potential launch of lenacapavir for PrEP in 2025 will be a significant boost for the company. Gilead's strategic deals and acquisitions to diversify its business are encouraging. However, Biktarvy sales are expected to be under pressure due to Medicare Part D redesign, which, in turn, should impact overall HIV growth. Hence, we advise prospective investors to wait and watch how well Biktarvy and the oncology business combat the existing headwinds before making a positive investment decision. In addition, we believe investors should also wait for better entry levels. For investors already owning the stock, it's important to note that Gilead has been consistently increasing and paying out dividends. The company declared a quarterly dividend of $0.79 per share of common stock for the second quarter of 2025. Its strong cash position (as of March 31, 2025, GILD had $7.9 billion of cash, cash equivalents and marketable debt securities) indicates that the current yield of 2.91% is sustainable. Gilead presently carries a Zacks Rank #3 (Hold). You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here. 5 Stocks Set to Double Each was handpicked by a Zacks expert as the #1 favorite stock to gain +100% or more in 2024. While not all picks can be winners, previous recommendations have soared +143.0%, +175.9%, +498.3% and +673.0%. Most of the stocks in this report are flying under Wall Street radar, which provides a great opportunity to get in on the ground floor. Today, See These 5 Potential Home Runs >> Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report GSK PLC Sponsored ADR (GSK): Free Stock Analysis Report Merck & Co., Inc. (MRK): Free Stock Analysis Report Gilead Sciences, Inc. (GILD): Free Stock Analysis Report

GILD Announces Positive Data on Trodelvy in First-Line Breast Cancer
GILD Announces Positive Data on Trodelvy in First-Line Breast Cancer

Globe and Mail

time5 days ago

  • Business
  • Globe and Mail

GILD Announces Positive Data on Trodelvy in First-Line Breast Cancer

Gilead Sciences, Inc. GILD announced positive top-line results from yet another late-stage study on breast cancer drug, Trodelvy (sacituzumab govitecan-hziy). Data from the phase III ASCENT-03 study on Trodelvy showed highly statistically significant and clinically meaningful improvement in progression-free survival (PFS) in patients with first-line metastatic triple-negative breast cancer (mTNBC) who are not candidates for checkpoint inhibitors. This is the second positive phase III study in first-line mTNBC where Trodelvy has demonstrated a clinically meaningful benefit versus standard of care chemotherapy. Gilead's shares have surged 17.1% year to date against the industry 's decline of 5%. More on GILD's Trodelvy Trodelvy is a first-in-class Trop-2-directed antibody-drug conjugate. The ASCENT-03 study is a global, open-label, randomized phase III trial evaluating the efficacy and safety of Trodelvy compared with treatment of physician's choice in patients with previously untreated, locally advanced, inoperable mTNBC whose tumors do not express PD-L1, or who are PD-L1 positive and previously treated with a PD-(L)1 inhibitor in the curative setting. Approximately 540 patients were enrolled across multiple study sites worldwide. These patients were randomized equally to receive either Trodelvy (10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle) or treatment of the physician's choice, which included gemcitabine plus carboplatin, paclitaxel, or nab-paclitaxel. The study met its primary endpoint, demonstrating a highly statistically significant and clinically meaningful improvement in PFS compared to chemotherapy in first-line mTNBC patients. The safety profile of Trodelvy in the ASCENT-03 study was consistent with the prior studies. Overall survival (OS) is a key secondary endpoint. The OS data was not mature at the time of PFS primary analysis. Hence, Gilead will continue to monitor OS outcomes, with ongoing patient follow-up and further analysis planned. Please note that Trodelvy is currently approved in more than 50 countries for second-line or later mTNBC patients and in several countries for certain patients with pre-treated HR+/HER2- metastatic breast cancer. Last month, Gilead announced positive top-line results from the phase III ASCENT-04/KEYNOTE-D19 study. Data showed Trodelvy plus Merck 's MRK blockbuster drug Keytruda (pembrolizumab) significantly improved PFS compared to Keytruda and chemotherapy in patients with inoperable (unresectable) locally advanced or mTNBC whose tumors express PD-L1. This study met its primary endpoint, showing a statistically significant and clinically meaningful improvement in PFS. Per GILD, positive data from the ASCENT-03 and ASCENT-04 study demonstrate Trodelvy's potential as the backbone treatment for all patients across first-line mTNBC. Gilead has additional ongoing phase III studies evaluating Trodelvy across HER2 breast cancer, including the ASCENT-07 pivotal trial in patients with HR+/HER2- mBC who have received endocrine therapy, and the ASCENT-05 pivotal trial in patients with early-stage TNBC (eTNBC). The drug is also being evaluated in additional late-stage studies across a range of tumor types, including lung and gynecologic cancers. GILD Looking to Diversify Portfolio Gilead's oncology portfolio, comprising the Cell Therapy franchise and breast cancer drug Trodelvy, has diversified its overall business. However, the Cell Therapy franchise, comprising Yescarta and Tecartus, is currently under pressure due to competitive headwinds in the United States and Europe that are expected to continue in 2025. The potential launch of anito-cel in multiple myeloma and Trodelvy in first-line metastatic triple-negative breast cancer in 2026 will strengthen the company's oncology business. GILD is one of the dominant players in the HIV market. Gilead's efforts to constantly innovate its HIV portfolio should enable it to maintain growth amid competition from GSK plc. The company's pipeline candidate, lenacapavir, demonstrated 100% efficacy for the investigational use of HIV prevention in cisgender women. The FDA accepted new drug application submissions for twice-yearly lenacapavir for HIV prevention under priority review, with a target action date of June 19, 2025. GILD has also collaborated with Merck to evaluate the investigational combination of islatravir and lenacapavir for the treatment of HIV. The potential launch of lenacapavir for PrEP in 2025 will be a significant boost for the company. GILD's Zacks Rank and Stocks to Consider Gilead currently carries a Zacks Rank #3 (Hold). A couple of better-ranked stocks in the pharma/biotech sector are Novartis NVS and Pfizer PFE, both carrying a Zacks Rank #2 (Buy) at present. You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here. The Zacks Consensus Estimate Novartis' 2025 earnings per share (EPS) has risen from $8.47 to $8.74 over the past 60 days. EPS estimates for 2026 have jumped 20 cents to $9.02 during this timeframe. The stock has risen 18.6% so far this year. Pfizer's 2025 EPS estimate has risen from $2.97 to $3.06 in the past 60 days, while that for 2026 has gone up from $2.99 to $3.09 over the same timeframe. 7 Best Stocks for the Next 30 Days Just released: Experts distill 7 elite stocks from the current list of 220 Zacks Rank #1 Strong Buys. They deem these tickers "Most Likely for Early Price Pops." Since 1988, the full list has beaten the market more than 2X over with an average gain of +23.0% per year. So be sure to give these hand picked 7 your immediate attention. See them now >> Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Novartis AG (NVS): Free Stock Analysis Report Pfizer Inc. (PFE): Free Stock Analysis Report Merck & Co., Inc. (MRK): Free Stock Analysis Report Gilead Sciences, Inc. (GILD): Free Stock Analysis Report

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