Small cell lung cancer recurrent

One of a trio of antibody-drug conjugates (ADCs) that formed the basis of a multi-billion-dollar alliance between Merck & Co. and Daiichi Sankyo last fall is making a quick advance into Phase III testing. According to a recent update on ClinicalTrials.gov, the study of ifinatamab deruxtecan (I-DXd) is expected to get underway in March to evaluate the B7-H3–targeting ADC in patients with relapsed small-cell lung cancer (SCLC).The partnership, signed last October, is a lucrative one for Daiichi Sankyo. In addition to receiving $4 billion upfront, the company is also eligible for another $18 billion in other potential payments and milestones. In exchange, Merck received ex-Japan rights to I-DXd, as well as two other ADC candidates – HER3-directed patritumab deruxtecan and raludotatug deruxtecan, which targets CDH6. While the companies predict the drugs could generate "multi-billion dollar worldwide commercial revenue" by the mid-2030’s, the deal – and a greater focus on ADCs in general – may also help Merck weather looming patent expirations for Keytruda coming in the latter half of the decade.Recruitment in the upcoming Phase III trial has not yet started, but it is expected to enroll 468 participants and will compare the efficacy and safety of I-DXd monotherapy with treatment of physician's choice. Objective response rate (ORR) and overall survival (OS) are the primary endpoints. Hints of promiseDaiichi Sankyo said in September that I-DXd had shown an "encouraging" ORR of 52.4% in heavily pretreated patients with extensive-stage SCLC enrolled in a Phase II trial. This included one complete response and 10 partial responses. Meanwhile, median progression-free survival was 5.6 months and median OS was 12.2 months as of data cutoff of January 31, 2023.Despite the confidence with which Merck embarked on the Daiichi partnership, there is some question as to whether it may have been overly generous betting on targets that have been the focus of significantly fewer prior deals in comparison to HER2 and TROP2.For example B7-H3 – so far, more popular for cell therapies than ADCs – has a limited deal history, with no public ADC deals addressing the target since 2021. However, companies such as MacroGenics, Mabwell Therapeutics and Minghui Pharmaceutical are working on some in-house candidates. Others that have shown an interest include GSK, which recently struck a deal to co-develop Hansoh Pharmaceutical's B7-H3-targeting compound HS-20093.

THOUSAND OAKS, Calif., Oct. 31, 2023 /PRNewswire/ -- Amgen (NASDAQ:AMGN) today announced financial results for the third quarter of 20231. "We are excited about our pipeline progress and our operating performance in the third quarter," said Robert A. Bradway, chairman and chief executive officer. "With the completion of the Horizon acquisition, Amgen has added rare disease medicines that fit well with our broad innovative portfolio." Key results include: Total revenues increased 4% to $6.9 billion in comparison to the third quarter of 2022, resulting from a 5% increase in product sales. Product sales growth was driven by 11% volume growth, partially offset by 3% lower net selling price and 3% unfavorable changes to estimated sales deductions. Volume growth of 11% included double-digit volume growth from BLINCYTO® (blinatumomab), EVENITY® (romosozumab-aqqg), Repatha® (evolocumab) and Nplate® (romiplostim). U.S. volume grew 11% and ex-U.S. volume grew 12%, including 27% volume growth in the Asia Pacific region. GAAP earnings per share (EPS) decreased 19% from $3.98 to $3.22, driven by a net impairment charge in Q3 2023 of approximately $650 million following a decision to discontinue development of AMG 340, partially offset by increased revenues. GAAP operating income decreased from $2.7 billion to $2.0 billion, and GAAP operating margin decreased 11.7 percentage points to 30.9%. Non-GAAP EPS increased 6% from $4.70 to $4.96, driven by increased revenues, partially offset by higher operating expenses. Non-GAAP operating income increased from $3.3 billion to $3.4 billion, and non-GAAP operating margin decreased 0.5 percentage points to 52.0%. The Company generated $2.5 billion of free cash flow for the third quarter of 2023 versus $2.8 billion in the third quarter of 2022. References in this release to "non-GAAP" measures, measures presented "on a non-GAAP basis" and "free cash flow" (computed by subtracting capital expenditures from operating cash flow) refer to non-GAAP financial measures. Adjustments to the most directly comparable GAAP financial measures and other items are presented on the attached reconciliations. Refer to Non-GAAP Financial Measures below for further discussion. Product Sales Performance Total product sales increased 5% for the third quarter of 2023 versus the third quarter of 2022. Unit volumes grew 11%, partially offset by 3% lower net selling price and 3% unfavorable changes to estimated sales deductions. General Medicine Repatha® sales increased 31% year-over-year for the third quarter, driven by 44% volume growth, partially offset by lower net selling price. In the U.S., sales grew 29%, driven by 45% volume growth, partially offset by lower net selling price resulting from higher rebates to support and expand access for patients. Outside the U.S., sales grew 34%, driven by 43% volume growth, partially offset by lower net selling price. Repatha remains the global proprotein convertase subtilisin/kexin type 9 (PCSK9) segment leader, with over 2 million patients treated since launch. Prolia® (denosumab) sales increased 14% year-over-year for the third quarter, primarily driven by 7% volume growth and higher net selling price. We are on track to treat over 7 million patients with Prolia in 2023. EVENITY® sales increased 53% year-over-year to a record $307 million for the third quarter, driven by strong volume growth. U.S. volumes grew 41% year-over-year and volumes outside the U.S. grew 63%. Aimovig® (erenumab-aooe) sales decreased 12% year-over-year for the third quarter, driven by lower net selling price, partially offset by favorable changes to estimated sales deductions. Inflammation TEZSPIRE® (tezepelumab-ekko) generated $161 million of sales in the third quarter. Quarter-over-quarter sales increased 21%, driven by 18% volume growth that benefited from the pre-filled, single-use pen, which was approved for self-administration by the U.S. Food and Drug Administration (FDA) in the first quarter. Healthcare providers are increasingly recognizing TEZSPIRE's unique, differentiated profile and its broad potential to treat the 2.5 million patients worldwide with severe asthma who are uncontrolled, without any phenotypic or biomarker limitation. TAVNEOS® (avacopan) generated $37 million of sales in the third quarter. Quarter-over-quarter sales increased 23%, driven by volume growth. U.S. volumes grew 18% quarter-over-quarter. In the U.S., approximately 2,300 patients have now been treated with TAVNEOS. Otezla® (apremilast) sales decreased 10% year-over-year for the third quarter, driven by lower net selling price, unfavorable changes to estimated sales deductions and lower inventory levels, partially offset by 1% volume growth. In the U.S., net selling price declined, driven by higher rebates to support and expand access for commercial and Medicare Part D patients. Otezla demand in the quarter continued to be impacted by free drug programs for newly launched competition. For the remainder of 2023, we expect demand to be affected by these free drug programs. We expect future growth for Otezla to be driven by its established efficacy and safety profile, strong payer coverage with limited prior authorization requirements and ease of administration. Otezla remains the only approved oral systemic therapy with a broad indication and is well-positioned to help the 1.5 million U.S. patients with mild-to-moderate psoriasis who cannot be optimally addressed by a topical and can benefit from a systemic treatment like Otezla. Enbrel® (etanercept) sales decreased 6% year-over-year for the third quarter, primarily driven by an 8% decline from unfavorable changes to estimated sales deductions, resulting from a $47 million favorable adjustment in the third quarter of 2022 compared to a $37 million unfavorable adjustment in this quarter. Year-over-year volume increased 1% in the third quarter, driven by an increase in new patients starting treatment as a result of improved payer coverage. For the remainder of 2023, we expect this improved coverage will lead to growth in new patients and declining net selling price. AMJEVITA®/AMGEVITA™ (adalimumab) sales increased 30% year-over-year for the third quarter, driven by 53% volume growth, partially offset by lower net selling price. Ex-U.S. sales increased 10% year-over-year, driven by 22% volume growth, partially offset by lower net selling price. U.S. sales increased 21% quarter-over-quarter, driven by 41% volume growth, partially offset by lower inventory levels. Hematology-Oncology BLINCYTO® sales increased 55% year-over-year to a record $220 million for the third quarter, driven by 56% volume growth, supported by broad prescribing for patients with B-cell precursor acute lymphoblastic leukemia. Vectibix® (panitumumab) sales increased 2% year-over-year for the third quarter to a record $252 million, driven by higher net selling price and 4% volume growth, partially offset by unfavorable foreign exchange impact. KYPROLIS® (carfilzomib) sales increased 10% year-over-year for the third quarter, primarily driven by 8% volume growth. LUMAKRAS®/LUMYKRAS™ (sotorasib) generated $52 million of sales for the third quarter. Year-over-year sales decreased 31% for the third quarter, primarily driven by unfavorable changes to estimated sales deductions related to ongoing reimbursement negotiations in France. XGEVA® (denosumab) sales increased 5% year-over-year for the third quarter, driven by higher net selling price. Nplate® sales increased 45% year-over-year for the third quarter, driven by 43% volume growth resulting from a $142 million order from the U.S. government. MVASI® (bevacizumab-awwb) sales increased 2% year-over-year for the third quarter, driven by 17% volume growth and favorable changes to estimated sales deductions, partially offset by lower net selling price. The published third quarter Average Selling Price (ASP) for MVASI in the U.S. declined 19% year-over-year and 1% quarter-over-quarter. Going forward, we expect continued net selling price erosion driven by increased competition. KANJINTI® (trastuzumab-anns) sales decreased 72% year-over-year for the third quarter, driven by lower net selling price, unfavorable changes to estimated sales deductions and volume declines. Established Products Total sales of our established products, which include EPOGEN® (epoetin alfa), Aranesp® (darbepoetin alfa), Parsabiv® (etelcalcetide) and Neulasta® (pegfilgrastim), decreased 30% year-over-year for the third quarter, driven by lower net selling price and volume declines. In the aggregate, we expect the year-over-year net selling price and volume erosion for this portfolio of products to continue. Product Sales Detail by Product and Geographic Region Operating Expense, Operating Margin and Tax Rate Analysis On a GAAP basis: Total Operating Expenses increased 22%. Cost of Sales margin increased 2.1 percentage points, primarily driven by higher profit share, higher amortization expense from acquisition-related assets and changes in product mix. Research & Development (R&D) expenses decreased 3%, as lower spend in research and early pipeline was partially offset by higher spend in later-stage clinical programs and marketed products. Selling, General & Administrative (SG&A) expenses increased 5%, primarily driven by higher general and administrative expenses, including higher acquisition-related expenses. Other operating expenses consisted of a net impairment charge for AMG 340. Operating Margin as a percentage of product sales decreased 11.7 percentage points to 30.9%. Tax Rate increased 0.7 percentage points, primarily driven by the 2022 Puerto Rico tax law change that replaced the excise tax with an income tax beginning in 2023, partially offset by net favorable items and earnings mix, including the tax benefit from the net impairment charge for AMG 340. On a non-GAAP basis: Total Operating Expenses increased 4%. Cost of Sales margin increased 1.3 percentage points, primarily driven by higher profit share and changes in product mix. R&D expenses decreased 2%, as lower spend in research and early pipeline was partially offset by higher spend in later-stage clinical programs and marketed products. SG&A expenses increased 1%. Operating Margin as a percentage of product sales decreased 0.5 percentage points in the third quarter to 52.0%. Tax Rate increased 3.2 percentage points, primarily due to the 2022 Puerto Rico tax law change that replaced the excise tax with an income tax beginning in 2023 and earnings mix. Cash Flow and Balance Sheet The Company generated $2.5 billion of free cash flow in the third quarter of 2023 versus $2.8 billion in the third quarter of 2022. The Company's third quarter 2023 dividend of $2.13 per share was declared on August 1, 2023, and was paid on September 8, 2023, to all stockholders of record as of August 18, 2023, representing a 10% increase from 2022. Cash and investments totaled $34.7 billion and debt outstanding totaled $60.5 billion as of September 30, 2023. 2023 Guidance For the full year 2023, the Company now expects: Total revenues in the range of $28.0 billion to $28.4 billion. On a GAAP basis, EPS in the range of $11.23 to $12.73, and a tax rate in the range of 14.0% to 15.5%. On a non-GAAP basis, EPS in the range of $18.20 to $18.80, and a tax rate in the range of 16.5% to 17.0%. Capital expenditures to be approximately $950 million. Share repurchases not to exceed $500 million. Third Quarter Product and Pipeline Update The Company provided the following updates on selected product and pipeline programs: Oncology Tarlatamab (AMG 757) In October, data were presented from the global Phase 2 DeLLphi-301 study and simultaneously published in the New England Journal of Medicine, evaluating tarlatamab, a first-in-class investigational delta-like ligand 3 (DLL3) targeting BiTE® (bispecific T-cell engager) molecule, in patients with advanced-stage small cell lung cancer (SCLC) who had failed two or more prior lines of treatment. With a median follow-up of 10.6 months, an intention-to-treat analysis that included 100 patients at the selected 10 mg dose for tarlatamab demonstrated an objective response rate (ORR; primary endpoint) of 40% (97.5% confidence interval: 29-52). There were no new safety signals observed compared to the Phase 1 study. Data from the DeLLphi-301 study are being submitted to the U.S. Food and Drug Administration (FDA) which recently granted Breakthrough Therapy Designation to tarlatamab for the treatment of adult patients with extensive-stage SCLC with disease progression on or after platinum-based chemotherapy. DeLLphi-304, a Phase 3 study comparing tarlatamab with standard of care chemotherapy in second-line SCLC, is enrolling patients. Two additional Phase 3 studies of tarlatamab in earlier lines of SCLC are planned. DeLLphi-300, a Phase 1 study of tarlatamab in relapsed/refractory SCLC, continues to enroll patients. DeLLphi-302, a Phase 1b study of tarlatamab in combination with AMG 404, an anti-programmed cell death protein 1 (PD1) monoclonal antibody, in second-line or later SCLC, is ongoing. DeLLphi-303, a Phase 1b study of tarlatamab in combination with standard of care in first-line SCLC, continues to enroll patients. DeLLpro-300, a Phase 1b study of tarlatamab in de novo or treatment-emergent neuroendocrine prostate cancer, has completed enrollment. BLINCYTO In September, based upon the E1910 study, the FDA granted Breakthrough Therapy Designation to BLINCYTO for the treatment of adult and pediatric patients with CD19-positive, Philadelphia chromosome-negative (Ph-), B-cell precursor acute lymphoblastic leukemia (B-ALL) during the consolidation phase of multiphase therapy. Global regulatory authority submissions are planned in late 2023 to early 2024 for the Phase 3 E1910 study conducted by the National Cancer Institute, the Eastern Cooperative Oncology Group and the American College of Radiology Imaging Network (ECOG ACRIN) Cancer Research Group. In October, National Comprehensive Cancer Network® Clinical Practice Guidelines in Oncology1 (NCCN Guidelines®) for Pediatric Acute Lymphoblastic Leukemia were updated to broaden the recommendation for BLINCYTO as consolidation to include both early and late first relapse patients with bone marrow relapse with or without extramedullary involvement and adding the COG1331 regimen to the list of recommended treatment regimens. Golden Gate, a Phase 3 study of BLINCYTO alternating with low-intensity chemotherapy in older adults with newly diagnosed Ph- B-ALL, continues to enroll patients. A Phase 1/2 study of subcutaneous BLINCYTO in adults with relapsed or refractory Ph- B-ALL continues to enroll patients. Xaluritamig (AMG 509) In October, initial data from a Phase 1b study were presented and simultaneously published in Cancer Discovery on xaluritamig, a first-in-class bispecific molecule targeting six-transmembrane epithelial antigen of prostate 1 (STEAP1) demonstrating encouraging anti-tumor activity in heavily pretreated patients with metastatic castrate-resistant prostate cancer (mCRPC). Efficacy was greater at higher doses (doses ≥0.75 mg target dose) where PSA50 was 59% (n=44) and RECIST objective response rate was 41% (n=37). The safety profile was clinically manageable, with CRS that was generally low grade and primarily in cycle 1. A Phase 1b monotherapy and combination dose-escalation and expansion study of xaluritamig in mCRPC continues to enroll patients. Two additional Phase 1 studies of xaluritamig to evaluate preliminary efficacy and safety in patients with early prostate cancer are planned. AMG 193 Initial results from a Phase 1/1b study of AMG 193, a first-in-class small molecule methylthioadenosine (MTA)-cooperative protein arginine methyltransferase 5 (PRMT5) inhibitor, demonstrate promising monotherapy activity across six methylthioadenosine phosphorylase (MTAP)-null tumor types. Dose-limiting adverse events and treatment discontinuations were typically due to gastrointestinal events and were manageable and reversible. This Phase 1/1b/2 study of AMG 193 continues to enroll patients with advanced MTAP-null solid tumors. A Phase 1/2 study of AMG 193 in combination with IDE397, an investigational methionine adenosyltransferase 2A (MAT2A) inhibitor, is enrolling patients. LUMAKRAS/LUMYKRAS In October, data were presented and simultaneously published in the New England Journal of Medicine from the global Phase 3 CodeBreaK 300 trial evaluating two doses of LUMAKRAS (960 mg or 240 mg) in combination with Vectibix. Both doses demonstrated a statistically significant superiority in PFS over the investigator's choice of standard therapy in patients with chemorefractory KRAS G12C-mutated metastatic colorectal cancer (CRC). No new safety signals were observed. Discussions continue with regulatory agencies on a potential approval pathway for this indication. In September, LUMAKRAS was included in the colon cancer and the rectal cancer NCCN Guidelines®1 (category 2A) and is recommended for treatment of previously treated metastatic colorectal or rectal cancer with KRAS G12C-mutated tumors in combination with cetuximab or panitumumab. The Company is planning to initiate a Phase 3 study of LUMAKRAS in combination with Vectibix and FOLFIRI in first-line KRAS G12C-mutated CRC. In September, data were presented from an arm of the CodeBreaK 101 clinical trial, a Phase 1b study evaluating LUMAKRAS with carboplatin and pemetrexed in adult patients with KRAS G12C-mutated advanced NSCLC. LUMAKRAS treatment resulted in encouraging objective response rates and disease control rates in first-line and second-line patients. A global, randomized Phase 3 study of LUMAKRAS plus chemotherapy vs. pembrolizumab plus chemotherapy in first-line KRAS G12C-mutated and programmed cell death protein ligand-1 (PD-L1) negative advanced NSCLC was initiated. Regulatory review by the FDA and the European Medicines Agency (EMA) of the CodeBreaK 200 Phase 3 trial of previously treated patients with KRAS G12C-mutated advanced NSCLC, along with data from the Phase 2 dose comparison substudy, is ongoing. In November, data2 comparing sotorasib 960 mg versus 240 mg in adults with pretreated KRAS G12C-mutated advanced NSCLC will be presented at a European Society for Medical Oncology (ESMO) Virtual Plenary session. Bemarituzumab FORTITUDE-101, a Phase 3 study of bemarituzumab, a first-in-class fibroblast growth factor receptor 2b (FGFR2b) targeting monoclonal antibody, plus chemotherapy in first-line gastric cancer, continues to enroll patients. FORTITUDE-102, a Phase 1b/3 study of bemarituzumab plus chemotherapy and nivolumab in first-line gastric cancer, continues to enroll patients in the Phase 3 portion of the study. FORTITUDE-103, a Phase 1b study of bemarituzumab plus oral chemotherapy regimens with or without nivolumab in first-line gastric cancer, continues to enroll patients. FORTITUDE-301, a Phase 1b/2 basket study of bemarituzumab monotherapy in solid tumors with FGFR2b overexpression, is ongoing. FORTITUDE-201, a Phase 1b study of bemarituzumab monotherapy and in combination with standard of care therapy, in squamous NSCLC with FGFR2b overexpression, will be discontinued. AMG 340 A Phase 1 dose-escalation study of AMG 340, a lower T-cell affinity BiTE molecule targeting prostate-specific membrane antigen (PSMA), in mCRPC will be discontinued. General Medicine Maridebart cafraglutide (AMG 133) A Phase 2 study of maridebart cafraglutide, a multispecific molecule that inhibits the gastric inhibitory polypeptide receptor (GIPR) and activates the glucagon like peptide 1 (GLP-1) receptor, in overweight or obese adults with or without type 2 diabetes mellitus has completed enrollment with topline data anticipated in late 2024. AMG 786 A Phase 1 study of AMG 786, a small molecule obesity program, is ongoing with initial data readout anticipated in H1 2024. This molecule has a different target than AMG 133 and is not an incretin-based therapy. Olpasiran (AMG 890) A Phase 3 cardiovascular outcomes study of olpasiran, a potentially best-in-class small interfering ribonucleic acid (siRNA) molecule that reduces lipoprotein(a) (Lp(a)) synthesis in the liver, in participants with atherosclerotic cardiovascular disease and elevated Lp(a) continues to enroll patients. In August, data were presented from the final analysis of the Phase 2 OCEAN(a)-DOSE study. The results from the off-treatment extension period (at least 24 weeks since the last dose) show that patients previously dosed every 12 weeks for up to 36 weeks with ≥ 75 mg of olpasiran sustained a ~ 40-50% placebo-adjusted percent reduction in Lp(a) nearly a year after the last dose. No new safety concerns were identified during the off-treatment extension period. Repatha New data from the FOURIER Open Label Extension (OLE) study reinforcing the safety and efficacy of Repatha, including results from the evaluation of long-term neurocognitive safety in atherosclerotic cardiovascular disease patients treated with Repatha, will be presented at the American Heart Association Scientific Sessions in November. EVOLVE-MI, a Phase 4 study of Repatha administered shortly after an acute myocardial infarction and designed to reduce the risk of cardiovascular events in hospitalized acute coronary syndrome patients, continues to enroll patients. A Phase 3 cardiovascular outcomes study (VESALIUS-CV) in patients at high cardiovascular risk without prior myocardial infarction or stroke is ongoing. Inflammation TEZSPIRE In severe asthma, the WAYFINDER Phase 3b study is fully enrolled. The PASSAGE Phase 4 real-world effectiveness study and the SUNRISE Phase 3 study continue to enroll patients. A Phase 3 study of TEZSPIRE in chronic rhinosinusitis with nasal polyps is fully enrolled. A Phase 3 study of TEZSPIRE in eosinophilic esophagitis continues to enroll patients. A Phase 2 study of TEZSPIRE in chronic obstructive pulmonary disease is fully enrolled. Data readout is anticipated in H1 2024. A Phase 2b study of TEZSPIRE in chronic spontaneous urticaria did not meet the primary endpoint comparing tezepelumab with placebo in the overall and anti-IgE-naïve populations at week 16. By the end of the study at week 32 (18 weeks after last dose), a sustained treatment effect was observed in both tezepelumab dose groups in anti-IgE naïve patients. The Company and its partner AstraZeneca are determining next steps for this indication and plan to publish full results in the future. Rocatinlimab (AMG 451/KHK4083) In October, three posters of post-hoc analysis data from the Phase 2b study of rocatinlimab, a first-in-class anti-OX40 monoclonal antibody, in patients with moderate to severe atopic dermatitis were presented. These included patient reported outcomes data demonstrating the benefit of rocatinlimab. The ROCKET Phase 3 program, composed of seven studies evaluating rocatinlimab in moderate to severe atopic dermatitis, continues to enroll adult and adolescent patients. To date, over 1,500 patients have been randomized into the ROCKET program. A Phase 2 study of rocatinlimab in moderate to severe uncontrolled asthma is planned. Otezla In October, results were presented from the DISCREET Phase 3 study which demonstrated that Otezla treated patients across subgroups experienced greater improvement in genital psoriasis and genital itch at week 16 compared to placebo, with women achieving numerically greater responses. A Phase 3 study evaluating the efficacy and safety of Otezla in Japanese patients with palmoplantar pustulosis successfully met the primary and secondary endpoints. TAVNEOS Data will be presented from the ADVOCATE study at the American College of Rheumatology and American Society of Nephrology Scientific sessions in November on the efficacy and safety of TAVNEOS in key sub-groups including patients 65 years old and older and patients with renal involvement. Efavaleukin alfa (AMG 592) A Phase 2b study of efavaleukin alfa, an interleukin 2 (IL 2) mutein Fc fusion protein, in ulcerative colitis continues to enroll patients. Ordesekimab (AMG 714/PRV-015) A Phase 2b study of AMG 714, a monoclonal antibody that binds interleukin-15, in nonresponsive celiac disease continues to enroll patients. Biosimilars The clinical comparative study portion of a randomized, double-blind pivotal study evaluating pharmacokinetic (PK) similarity of ABP 206 compared with OPDIVO® (nivolumab) in resected stage III or stage IV melanoma patients in the adjuvant setting was initiated. The FDA accepted the Biologics License Application for ABP 938, an investigational biosimilar to EYLEA® (aflibercept). 1National Comprehensive Cancer Network® (NCCN®) makes no warranties of any kind whatsoever regarding their content, use or application and disclaims any responsibility for their application or use in any way. 2 Previously provided in the publicly available ODAC briefing book. TEZSPIRE is being developed in collaboration with AstraZeneca. Rocatinlimab, formerly AMG 451/KHK4083, is being developed in collaboration with Kyowa Kirin. Ordesekimab, formerly AMG 714 and also known as PRV-015, is being developed in collaboration with Provention Bio, a Sanofi company. For the purposes of the collaboration, Provention Bio conducts a clinical trial and leads certain development and regulatory activities for the program. Xaluritamig, formerly AMG 509, is being developed pursuant to a research collaboration with Xencor, Inc. IDE397 is an investigational MAT2A inhibitor from IDEAYA Biosciences. OPDIVO is a registered trademark of Bristol-Myers Squibb Company. EYLEA is a registered trademark of Regeneron Pharmaceuticals, Inc. Non-GAAP Financial Measures In this news release, management has presented its operating results for the third quarters of 2023 and 2022, in accordance with U.S. Generally Accepted Accounting Principles (GAAP) and on a non-GAAP basis. In addition, management has presented its full year 2023 EPS and tax guidance in accordance with GAAP and on a non-GAAP basis. These non-GAAP financial measures are computed by excluding certain items related to acquisitions, divestitures, restructuring and certain other items from the related GAAP financial measures. Beginning January 1, 2022, following industry guidance from the U.S. Securities and Exchange Commission, the Company no longer excludes adjustments for upfront license fees, development milestones and in-process research and development (IPR&D) expenses of pre-approval programs related to licensing, collaboration and asset acquisition transactions from its non-GAAP financial measures. Management has presented Free Cash Flow (FCF), which is a non-GAAP financial measure, for the third quarters of 2023 and 2022. FCF is computed by subtracting capital expenditures from operating cash flow, each as determined in accordance with GAAP. The Company believes that its presentation of non-GAAP financial measures provides useful supplementary information to and facilitates additional analysis by investors. The Company uses certain non-GAAP financial measures to enhance an investor's overall understanding of the financial performance and prospects for the future of the Company's normal and recurring business activities by facilitating comparisons of results of normal and recurring business operations among current, past and future periods. The Company believes that FCF provides a further measure of the Company's liquidity. The Company uses the non-GAAP financial measures set forth in the news release in connection with its own budgeting and financial planning internally to evaluate the performance of the business, including to allocate resources and to evaluate results relative to incentive compensation targets. The non-GAAP financial measures are in addition to, not a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. About Amgen Amgen is committed to unlocking the potential of biology for patients suffering from serious illnesses by discovering, developing, manufacturing and delivering innovative human therapeutics. This approach begins by using tools like advanced human genetics to unravel the complexities of disease and understand the fundamentals of human biology. Amgen focuses on areas of high unmet medical need and leverages its expertise to strive for solutions that improve health outcomes and dramatically improve people's lives. A biotechnology pioneer since 1980, Amgen has grown to be one of the world's leading independent biotechnology companies, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential. Amgen is one of the 30 companies that comprise the Dow Jones Industrial Average and is also part of the Nasdaq-100 index. In 2023, Amgen was named one of "America's Greatest Workplaces" by Newsweek, one of "America's Climate Leaders" by USA Today and one of the "World's Best Companies" by TIME. For more information, visit Amgen.com and follow us on X (formerly known as Twitter), LinkedIn, Instagram, TikTok, YouTube and Threads. Forward-Looking Statements This news release contains forward-looking statements that are based on the current expectations and beliefs of Amgen. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including any statements on the outcome, benefits and synergies of collaborations, or potential collaborations, with any other company (including BeiGene, Ltd. or Kyowa Kirin Co., Ltd.), the performance of Otezla® (apremilast) (including anticipated Otezla sales growth and the timing of non-GAAP EPS accretion), our acquisitions of Teneobio, Inc., ChemoCentryx, Inc., or Horizon Therapeutics plc (including the prospective performance and outlook of Horizon's business, performance and opportunities and any potential strategic benefits, synergies or opportunities expected as a result of such acquisition, and any projected impacts from the Horizon acquisition on our acquisition-related expenses going forward), as well as estimates of revenues, operating margins, capital expenditures, cash, other financial metrics, expected legal, arbitration, political, regulatory or clinical results or practices, customer and prescriber patterns or practices, reimbursement activities and outcomes, effects of pandemics or other widespread health problems on our business, outcomes, progress, and other such estimates and results. Forward-looking statements involve significant risks and uncertainties, including those discussed below and more fully described in the Securities and Exchange Commission reports filed by Amgen, including our most recent annual report on Form 10-K and any subsequent periodic reports on Form 10-Q and current reports on Form 8-K. Unless otherwise noted, Amgen is providing this information as of the date of this news release and does not undertake any obligation to update any forward-looking statements contained in this document as a result of new information, future events or otherwise. No forward-looking statement can be guaranteed and actual results may differ materially from those we project. Our results may be affected by our ability to successfully market both new and existing products domestically and internationally, clinical and regulatory developments involving current and future products, sales growth of recently launched products, competition from other products including biosimilars, difficulties or delays in manufacturing our products and global economic conditions. In addition, sales of our products are affected by pricing pressure, political and public scrutiny and reimbursement policies imposed by third-party payers, including governments, private insurance plans and managed care providers and may be affected by regulatory, clinical and guideline developments and domestic and international trends toward managed care and healthcare cost containment. Furthermore, our research, testing, pricing, marketing and other operations are subject to extensive regulation by domestic and foreign government regulatory authorities. We or others could identify safety, side effects or manufacturing problems with our products, including our devices, after they are on the market. Our business may be impacted by government investigations, litigation and product liability claims. In addition, our business may be impacted by the adoption of new tax legislation or exposure to additional tax liabilities. If we fail to meet the compliance obligations in the corporate integrity agreement between us and the U.S. government, we could become subject to significant sanctions. Further, while we routinely obtain patents for our products and technology, the protection offered by our patents and patent applications may be challenged, invalidated or circumvented by our competitors, or we may fail to prevail in present and future intellectual property litigation. We perform a substantial amount of our commercial manufacturing activities at a few key facilities, including in Puerto Rico, and also depend on third parties for a portion of our manufacturing activities, and limits on supply may constrain sales of certain of our current products and product candidate development. An outbreak of disease or similar public health threat, such as COVID-19, and the public and governmental effort to mitigate against the spread of such disease, could have a significant adverse effect on the supply of materials for our manufacturing activities, the distribution of our products, the commercialization of our product candidates, and our clinical trial operations, and any such events may have a material adverse effect on our product development, product sales, business and results of operations. We rely on collaborations with third parties for the development of some of our product candidates and for the commercialization and sales of some of our commercial products. In addition, we compete with other companies with respect to many of our marketed products as well as for the discovery and development of new products. Discovery or identification of new product candidates or development of new indications for existing products cannot be guaranteed and movement from concept to product is uncertain; consequently, there can be no guarantee that any particular product candidate or development of a new indication for an existing product will be successful and become a commercial product. Further, some raw materials, medical devices and component parts for our products are supplied by sole third-party suppliers. Certain of our distributors, customers and payers have substantial purchasing leverage in their dealings with us. The discovery of significant problems with a product similar to one of our products that implicate an entire class of products could have a material adverse effect on sales of the affected products and on our business and results of operations. Our efforts to collaborate with or acquire other companies, products or technology, and to integrate the operations of companies or to support the products or technology we have acquired, may not be successful. There can be no guarantee that we will be able to realize any of the strategic benefits, synergies or opportunities arising from the Horizon acquisition, and such benefits, synergies or opportunities may take longer to realize than expected. We may not be able to successfully integrate Horizon, and such acquisition or integration may take longer, be more difficult or cost more than expected. A breakdown, cyberattack or information security breach of our information technology systems could compromise the confidentiality, integrity and availability of our systems and our data. Our stock price is volatile and may be affected by a number of events. Our business and operations may be negatively affected by the failure, or perceived failure, of achieving our environmental, social and governance objectives. The effects of global climate change and related natural disasters could negatively affect our business and operations. Global economic conditions may magnify certain risks that affect our business. Our business performance could affect or limit the ability of our Board of Directors to declare a dividend or our ability to pay a dividend or repurchase our common stock. We may not be able to access the capital and credit markets on terms that are favorable to us, or at all. CONTACT: Amgen, Thousand Oaks Jessica Akopyan, 805-440-5721 (media) Justin Claeys, 805-313-9775 (investors) Our GAAP diluted EPS guidance does not include the effect of GAAP adjustments triggered by events that may occur subsequent to this press release such as acquisitions, asset impairments, litigation, changes in fair value of our contingent consideration obligations and changes in fair value of our equity investments. SOURCE Amgen

Tarlatamab Delivered an Encouraging Objective Response Rate of 40% and Median Overall Survival of 14.3 Months in Patients with Advanced SCLC Late-Breaking Data Presented at ESMO and Published in the New England Journal of Medicine (NEJM) Tarlatamab is an Investigational Delta-Like Ligand 3 (DLL3) Targeting BiTE® Molecule THOUSAND OAKS, Calif., Oct. 20, 2023 /PRNewswire/ -- Amgen (NASDAQ:AMGN) today announced results from the global Phase 2 DeLLphi-301 study, evaluating tarlatamab, an investigational delta-like ligand 3 (DLL3) targeting BiTE® (bispecific T-cell engager) molecule, in patients with advanced stage small cell lung cancer (SCLC) who had failed two or more prior lines of treatment. The data are being presented today at 3:20 PM CEST at a Proffered Paper session as a late-breaking oral presentation (LBA92) during the European Society for Medical Oncology (ESMO) Congress 2023 in Madrid, Spain, with publication in the New England Journal of Medicine. With a median follow-up of 10.6 months, an intention-to-treat analysis that included 100 patients at the selected 10 mg dose for tarlatamab demonstrated an objective response rate (ORR; primary endpoint) of 40% (97.5% Confidence Interval (CI): 29, 52). For key secondary endpoints, median progression-free survival (mPFS) was 4.9 months (95% CI: 2.9, 6.7) and median overall survival (mOS) was 14.3 months (95% CI: 10.8, NE). Median response duration was not reached. Of the patients who responded to treatment with tarlatamab at 10 mg dose, 58% experienced at least six months of response and 55% of responses were ongoing at data cutoff. "Small cell lung cancer has represented one of the greatest challenges in cancer treatment, where there has been little progress against this deadly tumor type in decades," said David M. Reese, M.D., executive vice president of Research and Development at Amgen. "The tarlatamab results show the potential for this BiTE® molecule in a common solid tumor. We look forward to discussing these potentially registrational data with regulatory authorities." There were no new safety signals observed compared to Phase 1 study. Discontinuations due to treatment-related adverse events (TRAEs) were infrequent (4%). The most common treatment-emergent adverse events (TEAEs) reported among patients in the tarlatamab 10 mg group, were cytokine release syndrome (CRS; 49%), pyrexia (38%), decreased appetite (25%) and dysgeusia (24%). CRS was largely confined to the first and second dose, predominantly grade 1 or 2 and were generally managed with supportive care. At the tarlatamab 10 mg dose, grade 3 CRS was low (0%) and grade 3 immune effector cell-associated neurotoxicity syndrome (ICANS) and associated neurologic events were not observed (0%). There were no reported grade 4 or 5 cases for either of these two adverse events. "In the current third-line treatment of SCLC, patients face a dire prognosis, with response rates ranging between 14 and 21 percent and median overall survival less than six months," said Luis Paz-Ares, M.D., Ph.D., chairman, Medical Oncology Department, Hospital Doce de Octubre; Head, Lung Cancer Unit, National Oncology Research Center (CNIO); associate professor, Universidad Complutense. About Tarlatamab Tarlatamab is an investigational, targeted immunotherapy engineered by Amgen researchers that brings a patient's own T cells in close proximity to SCLC cells by binding both CD3 on T cells and DLL3 on SCLC cells. This results in the formation of an immunological synapse with lysis of the cancer cell.1,2 DLL3 represents an exciting therapeutic target for patients with SCLC, as approximately 85% to 94% of patients have expression of DLL3 on the cell surface of SCLC cells, with minimal expression in normal cells.3,4,5 In a Phase 1 study, tarlatamab showed responses in 23.0% of patients with encouraging durability in heavily pre-treated patients with SCLC. Amgen is currently investigating tarlatamab in multiple trials, including DeLLphi-304, a Phase 3 study comparing tarlatamab versus standard of care chemotherapy in second-line treatment of SCLC that is enrolling patients. Amgen has plans to initiate two additional Phase 3 studies of tarlatamab in earlier settings of SCLC. About Small Cell Lung Cancer (SCLC) SCLC is one of the most aggressive and devastating solid tumors with a median survival of approximately 12 months following initial therapy and a 7% five-year relative survival rate across all stages 6,7,8 Of the 2.2M+ patients diagnosed with lung cancer worldwide each year, SCLC comprises 15% of cases.9,10 Despite initial high response rates to platinum-based first-line chemotherapy, patients quickly develop resistance to second-line and subsequent therapies and face a median time of survival of 10 to 12 months after diagnosis.11 Furthermore, there are currently no approved therapeutic options in the third-line treatment of SCLC. About Tarlatamab Clinical Trials Amgen's robust tarlatamab development program includes the DeLLphi clinical trials, which evaluate tarlatamab as a monotherapy and as part of combination regimens in earlier stages of SCLC. Tarlatamab is being investigated in multiple studies, including DeLLphi-301, a potentially registrational Phase 2 study to evaluate the efficacy, safety, tolerability, and pharmacokinetics of tarlatamab in third-line or later relapsed/refractory SCLC. Additional clinical studies underway include DeLLphi-302, a Phase 1b combination study evaluating tarlatamab in combination with an anti-PD-1 therapy in second-line or later SCLC; DeLLphi-303, a Phase 1b study investigating tarlatamab in combination with standard of care therapies in first-line SCLC; and DeLLphi-304, a randomized Phase 3 trial comparing tarlatamab monotherapy with standard of care therapy in patients with SCLC who have relapsed following first-line platinum-based chemotherapy.12 Amgen also plans to initiate two additional Phase 3 studies of tarlatamab in earlier settings of SCLC. For more information, please visit . About BiTE® Technology BiTE® (bispecific T-cell engager) technology is a targeted immuno-oncology platform that is designed to engage patient's own T cells to any tumor-specific antigen, activating the cytotoxic potential of T cells to eliminate detectable cancer. The BiTE immuno-oncology platform has the potential to treat different tumor types through tumor-specific antigens. The BiTE platform has a goal of leading to off-the-shelf solutions, which have the potential to make innovative T cell treatment available to all providers when their patients need it. Amgen is advancing more than a dozen BiTE molecules across a broad range of hematologic malignancies and solid tumors, further investigating BiTE technology with the goal of enhancing patient experience and therapeutic potential. To learn more about BiTE technology, visit . About Amgen Amgen is committed to unlocking the potential of biology for patients suffering from serious illnesses by discovering, developing, manufacturing and delivering innovative human therapeutics. This approach begins by using tools like advanced human genetics to unravel the complexities of disease and understand the fundamentals of human biology. Amgen focuses on areas of high unmet medical need and leverages its expertise to strive for solutions that improve health outcomes and dramatically improve people's lives. A biotechnology pioneer since 1980, Amgen has grown to be one of the world's leading independent biotechnology companies, has reached millions of patients around the world and is developing a pipeline of medicines with breakaway potential. Amgen is one of the 30 companies that comprise the Dow Jones Industrial Average and is also part of the Nasdaq-100 index. In 2023, Amgen was named one of "America's Greatest Workplaces" by Newsweek, one of "America's Climate Leaders" by USA Today and one of the "World's Best Companies" by TIME. For more information, visit Amgen.com and follow us on X (formerly known as Twitter), LinkedIn, Instagram, TikTok, YouTube and Threads. Amgen Forward-Looking Statements This news release contains forward-looking statements that are based on the current expectations and beliefs of Amgen. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including any statements on the outcome, benefits and synergies of collaborations, or potential collaborations, with any other company (including BeiGene, Ltd. or Kyowa-Kirin Co., Ltd.), the performance of Otezla® (apremilast) (including anticipated Otezla sales growth and the timing of non-GAAP EPS accretion), the Teneobio, Inc. acquisition, the ChemoCentryx, Inc. acquisition, or the Horizon Therapeutics plc acquisition (including the prospective performance and outlook of Horizon's business, performance and opportunities and any potential strategic benefits, synergies or opportunities expected as a result of such acquisition), as well as estimates of revenues, operating margins, capital expenditures, cash, other financial metrics, expected legal, arbitration, political, regulatory or clinical results or practices, customer and prescriber patterns or practices, reimbursement activities and outcomes, effects of pandemics or other widespread health problems on our business, outcomes, progress, and other such estimates and results. Forward-looking statements involve significant risks and uncertainties, including those discussed below and more fully described in the Securities and Exchange Commission reports filed by Amgen, including our most recent annual report on Form 10-K and any subsequent periodic reports on Form 10-Q and current reports on Form 8-K. Unless otherwise noted, Amgen is providing this information as of the date of this news release and does not undertake any obligation to update any forward-looking statements contained in this document as a result of new information, future events or otherwise. No forward-looking statement can be guaranteed and actual results may differ materially from those we project. Discovery or identification of new product candidates or development of new indications for existing products cannot be guaranteed and movement from concept to product is uncertain; consequently, there can be no guarantee that any particular product candidate or development of a new indication for an existing product will be successful and become a commercial product. Further, preclinical results do not guarantee safe and effective performance of product candidates in humans. The complexity of the human body cannot be perfectly, or sometimes, even adequately modeled by computer or cell culture systems or animal models. The length of time that it takes for us to complete clinical trials and obtain regulatory approval for product marketing has in the past varied and we expect similar variability in the future. Even when clinical trials are successful, regulatory authorities may question the sufficiency for approval of the trial endpoints we have selected. We develop product candidates internally and through licensing collaborations, partnerships and joint ventures. Product candidates that are derived from relationships may be subject to disputes between the parties or may prove to be not as effective or as safe as we may have believed at the time of entering into such relationship. Also, we or others could identify safety, side effects or manufacturing problems with our products, including our devices, after they are on the market. Our results may be affected by our ability to successfully market both new and existing products domestically and internationally, clinical and regulatory developments involving current and future products, sales growth of recently launched products, competition from other products including biosimilars, difficulties or delays in manufacturing our products and global economic conditions. In addition, sales of our products are affected by pricing pressure, political and public scrutiny and reimbursement policies imposed by third-party payers, including governments, private insurance plans and managed care providers and may be affected by regulatory, clinical and guideline developments and domestic and international trends toward managed care and healthcare cost containment. Furthermore, our research, testing, pricing, marketing and other operations are subject to extensive regulation by domestic and foreign government regulatory authorities. Our business may be impacted by government investigations, litigation and product liability claims. In addition, our business may be impacted by the adoption of new tax legislation or exposure to additional tax liabilities. If we fail to meet the compliance obligations in the corporate integrity agreement between us and the U.S. government, we could become subject to significant sanctions. Further, while we routinely obtain patents for our products and technology, the protection offered by our patents and patent applications may be challenged, invalidated or circumvented by our competitors, or we may fail to prevail in present and future intellectual property litigation. We perform a substantial amount of our commercial manufacturing activities at a few key facilities, including in Puerto Rico, and also depend on third parties for a portion of our manufacturing activities, and limits on supply may constrain sales of certain of our current products and product candidate development. An outbreak of disease or similar public health threat, such as COVID-19, and the public and governmental effort to mitigate against the spread of such disease, could have a significant adverse effect on the supply of materials for our manufacturing activities, the distribution of our products, the commercialization of our product candidates, and our clinical trial operations, and any such events may have a material adverse effect on our product development, product sales, business and results of operations. We rely on collaborations with third parties for the development of some of our product candidates and for the commercialization and sales of some of our commercial products. In addition, we compete with other companies with respect to many of our marketed products as well as for the discovery and development of new products. Further, some raw materials, medical devices and component parts for our products are supplied by sole third-party suppliers. Certain of our distributors, customers and payers have substantial purchasing leverage in their dealings with us. The discovery of significant problems with a product similar to one of our products that implicate an entire class of products could have a material adverse effect on sales of the affected products and on our business and results of operations. Our efforts to collaborate with or acquire other companies, products or technology, and to integrate the operations of companies or to support the products or technology we have acquired, may not be successful. There can be no guarantee that we will be able to realize any of the strategic benefits, synergies or opportunities arising from the Horizon acquisition, and such benefits, synergies or opportunities may take longer to realize than expected. We may not be able to successfully integrate Horizon, and such acquisition or integration may take longer, be more difficult or cost more than expected. A breakdown, cyberattack or information security breach of our information technology systems could compromise the confidentiality, integrity and availability of our systems and our data. Our stock price is volatile and may be affected by a number of events. Our business and operations may be negatively affected by the failure, or perceived failure, of achieving our environmental, social and governance objectives. The effects of global climate change and related natural disasters could negatively affect our business and operations. Global economic conditions may magnify certain risks that affect our business. Our business performance could affect or limit the ability of our Board of Directors to declare a dividend or our ability to pay a dividend or repurchase our common stock. We may not be able to access the capital and credit markets on terms that are favorable to us, or at all. The scientific information discussed in this news release related to our product candidates is preliminary and investigative. Such product candidates are not approved by the U.S. Food and Drug Administration, and no conclusions can or should be drawn regarding the safety or effectiveness of the product candidates. Further, any scientific information discussed in this news release relating to new indications for our products is preliminary and investigative and is not part of the labeling approved by the U.S. Food and Drug Administration for the products. The products are not approved for the investigational use(s) discussed in this news release, and no conclusions can or should be drawn regarding the safety or effectiveness of the products for these uses. CONTACT: Amgen, Thousand Oaks Elissa Snook, 609-251-1407 (media) Jessica Akopyan, 805-440-5721 (media) Justin Claeys, 805-313-9775 (investors) SOURCE Amgen