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Featured data include new results from the Phase 3 MARIPOSA study, which has received U.S. FDA Priority Review, and the Phase 1b PALOMA study of subcutaneous amivantamab PRAGUE, March 18, 2024 /PRNewswire/ -- Johnson & Johnson announced today that new data will be featured at this year's European Lung Cancer Congress (ELCC) taking place from March 20 to 23 in Prague, Czech Republic, highlighting the Company's commitment to transform the treatment of lung cancer through the ongoing study of RYBREVANT® (amivantamab)-based regimens in the treatment of epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC). Key data to be featured in four mini-oral presentations include results from an exploratory analysis from the Phase 3 MARIPOSA study evaluating the effect of RYBREVANT® dose interruptions on clinical outcomes, new results confirming the recommended dose for monthly subcutaneous administration of amivantamab from the Phase 1b PALOMA study, and post-progression analyses from the pivotal PAPILLON and MARIPOSA-2 studies, which aim to support the differentiated clinical profile of RYBREVANT® in the treatment of patients with EGFR-mutated NSCLC.1,2,3,4 "The breadth of data being presented at ELCC underscore our commitment to redefine treatment outcomes for patients living with EGFR-mutated NSCLC," said Kiran Patel, M.D., Vice President, Clinical Development, Solid Tumors, Johnson & Johnson Innovative Medicine. "Following recent regulatory submissions in the U.S. and Europe, we look forward to advancing our transformative portfolio and bringing novel targeted treatment regimens to patients around the world." "The results presented at ELCC reinforce the role RYBREVANT-based treatment regimens may play in improving the standard of care in EGFR-mutated NSCLC," said Henar Hevia, EMEA Therapeutic Area Lead, Oncology, Solid Tumors, Johnson & Johnson Innovative Medicine. "We have made remarkable progress in advancing the science of NSCLC and will continue to evaluate the full potential of RYBREVANT as a treatment for patients through our comprehensive clinical development program." Key presentations include: Insights on the effect of RYBREVANT® plus lazertinib dose interruptions on clinical outcomes from the Phase 3 MARIPOSA study in patients with previously untreated EGFR advanced NSCLC (Abstract #1001). Results from the Phase 1 PALOMA study examining the severity and incidence of infusion-related reactions with subcutaneous amivantamab administration in patients with advanced solid tumor malignancies (Abstract #839). Data from an exploratory analysis of the Phase 3 PAPILLON study evaluating the impact of treatment with RYBREVANT® plus chemotherapy on post-progression secondary endpoints including time-to-treatment discontinuation (TTD) and time to subsequent therapy (TTST) in patients with NSCLC with EGFR exon 20 insertion mutations (Abstract #844). Analysis of post-progression outcomes including TTD, TTST, and progression-free survival after first subsequent therapy (PFS2) from the Phase 3 MARIPOSA-2 study, which is investigating RYBREVANT® plus chemotherapy in patients with EGFR-mutant advanced NSCLC after progression with osimertinib treatment (Abstract #833). The complete list of Company-sponsored abstracts follows: About RYBREVANT® RYBREVANT® (amivantamab-vmjw), a fully-human bispecific antibody targeting EGFR and MET with immune cell-directing activity, is approved in the U.S., Europe, and in other markets around the world as monotherapy for the treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as detected by an FDA-approved test, whose disease has progressed on or after platinum-based chemotherapy.5 RYBREVANT® is also approved in the U.S. in combination with chemotherapy (carboplatin and pemetrexed) for the first-line treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 20 insertion mutations, as detected by an FDA-approved test. In October 2023, a type II extension of indication application was submitted to the European Medicines Agency (EMA) seeking approval of RYBREVANT® for this indication. In December 2023, Johnson & Johnson submitted an sBLA together with a New Drug Application (NDA) to the U.S. FDA for RYBREVANT® in combination with lazertinib for the first-line treatment of adult patients with locally advanced or metastatic NSCLC with EGFR exon 19 deletions or L858R substitution mutations, as detected by an FDA-approved test. This submission is based on the Phase 3 MARIPOSA study and was granted Priority Review in February 2024. A marketing authorization application (MAA) and type II extension of indication application were also submitted to the EMA seeking approval of lazertinib in combination with RYBREVANT® based on the MARIPOSA study. In November 2023, Johnson & Johnson submitted an sBLA to the U.S. FDA for RYBREVANT® in combination with chemotherapy for the treatment of patients with EGFR-mutated NSCLC who progressed on or after osimertinib based on the MARIPOSA-2 study. A type II extension of indication application was also submitted to the EMA seeking approval of RYBREVANT® for this indication. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for NSCLC§ prefer next-generation sequencing–based strategies over polymerase chain reaction–based approaches for the detection of EGFR exon 20 insertion variants. The NCCN Guidelines include: Amivantamab-vmjw (RYBREVANT®) plus carboplatin and pemetrexed as a preferred (Category 1 recommendation) first-line therapy in treatment-naive patients with newly diagnosed advanced or metastatic EGFR exon 20 insertion mutation-positive advanced NSCLC, or as a subsequent therapy option (Category 2A recommendation) for patients that have progressed on or after platinum-based chemotherapy with or without immunotherapy and have EGFR exon 20 insertion mutation-positive advanced NSCLC.6 †‡ Amivantamab-vmjw (RYBREVANT®) plus chemotherapy as a preferred (Category 1 recommendation) subsequent therapy for patients with locally advanced or metastatic NCSLC with EGFR exon 19 deletions or exon 21 L858R mutations who experienced disease progression after treatment with osimertinib.6 †‡ Amivantamab-vmjw (RYBREVANT®) as a subsequent therapy option (Category 2A recommendation) for patients that have progressed on or after platinum-based chemotherapy with or without an immunotherapy and have EGFR exon 20 insertion mutation-positive NSCLC.6 †‡ RYBREVANT® is being studied in multiple clinical trials in NSCLC, including: The Phase 3 PAPILLON (NCT04538664) study assessing RYBREVANT® in combination with carboplatin-pemetrexed versus chemotherapy alone in the first-line treatment of patients with advanced or metastatic NSCLC with EGFR exon 20 insertion mutations. Topline data for this randomized Phase 3 study demonstrated statistically significant and clinically meaningful improvement in progression-free survival (PFS) in patients receiving RYBREVANT®.7 The Phase 3 MARIPOSA-2 (NCT04988295) study assessing the efficacy of RYBREVANT® (with or without lazertinib) and carboplatin-pemetrexed versus carboplatin-pemetrexed alone in patients with locally advanced or metastatic EGFR ex19del or L858R substitution NSCLC after disease progression on or after osimertinib. Topline data for this randomized Phase 3 study demonstrated statistically significant and clinically meaningful improvement in PFS in these patients receiving RYBREVANT® plus chemotherapy with and without lazertinib versus chemotherapy.8 The Phase 3 MARIPOSA (NCT04487080) study assessing RYBREVANT® in combination with lazertinib versus osimertinib and versus lazertinib alone in the first-line treatment of patients with locally advanced or metastatic NSCLC with EGFR ex19del or L858R substitution mutations. Topline data for this randomized Phase 3 study demonstrated statistically significant and clinically meaningful improvement in PFS in patients receiving RYBREVANT® plus lazertinib versus osimertinib.9 The Phase 1 CHRYSALIS (NCT02609776) study evaluating RYBREVANT® in patients with advanced NSCLC.10 The Phase 1/1b CHRYSALIS-2 (NCT04077463) study evaluating RYBREVANT® in combination with lazertinib and lazertinib as a monotherapy in patients with advanced NSCLC with EGFR mutations.11 The Phase 1 PALOMA (NCT04606381) study assessing the feasibility of subcutaneous administration of amivantamab based on safety and pharmacokinetics and to determine a dose, dose regimen and formulation for amivantamab subcutaneous delivery.12 The Phase 2 PALOMA-2 (NCT05498428) study assessing subcutaneous amivantamab in patients with advanced or metastatic solid tumors including EGFR-mutated NSCLC.13 The Phase 3 PALOMA-3 (NCT05388669) study assessing lazertinib with subcutaneous amivantamab compared to intravenous amivantamab in patients with EGFR-mutated advanced or metastatic NSCLC.14 The Phase 1/2 METalmark (NCT05488314) study assessing RYBREVANT® and capmatinib combination therapy in locally advanced or metastatic NSCLC.15 The Phase 1/2 PolyDamas (NCT05908734) study assessing RYBREVANT® and cetrelimab combination therapy in locally advanced or metastatic NSCLC.16 The Phase 2 SKIPPirr study (NCT05663866) exploring how to decrease the incidence and/or severity of first-dose infusion-related reactions with RYBREVANT® in combination with lazertinib in relapsed or refractory EGFR-mutated advanced or metastatic NSCLC.17 For more information, visit: . About Non-Small Cell Lung Cancer Worldwide, lung cancer is one of the most common cancers, with NSCLC making up 80 to 85 percent of all lung cancer cases.18,19 The main subtypes of NSCLC are adenocarcinoma, squamous cell carcinoma, and large cell carcinoma.20 Among the most common driver mutations in NSCLC are alterations in EGFR, which is a receptor tyrosine kinase controlling cell growth and division.21 EGFR mutations are present in 10 to 15 percent of Western patients with NSCLC with adenocarcinoma histology and occur in 40 to 50 percent of Asian patients.20,21,22,23,24,25 EGFR ex19del or EGFR L858R mutations are the most common EGFR mutations.26 The five-year survival rate for all people with advanced NSCLC and EGFR mutations treated with EGFR tyrosine kinase inhibitors (TKIs) is less than 20 percent.27,28 EGFR exon 20 insertion mutations are the third most prevalent activating EGFR mutation.29 Patients with EGFR exon 20 insertion mutations have a real-world five-year overall survival (OS) of eight percent in the frontline setting, which is worse than patients with EGFR ex19del or L858R mutations, who have a real-world five-year OS of 19 percent.30 RYBREVANT® IMPORTANT SAFETY INFORMATION 5 WARNINGS AND PRECAUTIONS The safety population of RYBREVANT® with carboplatin and pemetrexed described in Warnings and Precautions was based on 151 patients in the PAPILLON study. The safety population of RYBREVANT® as a single agent described in Warnings and Precautions was based on 129 patients in the CHRYSALIS study. Infusion-Related Reactions RYBREVANT ® can cause infusion-related reactions (IRR); signs and symptoms of IRR include dyspnea, flushing, fever, chills, nausea, chest discomfort, hypotension, and vomiting. RYBREVANT® with Carboplatin and Pemetrexed RYBREVANT® in combination with carboplatin and pemetrexed can cause infusion-related reactions. Based on the safety population, infusion-related reactions occurred in 42% of patients treated with RYBREVANT® in combination with carboplatin and pemetrexed, including Grade 3 (1.3%) adverse reactions. The incidence of infusion modifications due to IRR was 40%, and 0.7% of patients permanently discontinued RYBREVANT®. RYBREVANT® as a Single Agent Based on the safety population, IRR occurred in 66% of patients treated with RYBREVANT®. Among patients receiving treatment on Week 1 Day 1, 65% experienced an IRR, while the incidence of IRR was 3.4%with the Day 2 infusion, 0.4% with the Week 2 infusion, and cumulatively 1.1% with subsequent infusions. Of the reported IRRs, 97% were Grade 1-2, 2.2% were Grade 3, and 0.4% were Grade 4. The median time to onset was 1 hour (range 0.1 to 18 hours) after start of infusion. The incidence of infusion modifications due to IRR was 62%, and 1.3% of patients permanently discontinued RYBREVANT® due to IRR. Premedicate with antihistamines, antipyretics, and glucocorticoids and infuse RYBREVANT® as recommended. Administer RYBREVANT® via a peripheral line on Week 1 and Week 2. Monitor patients for any signs and symptoms of infusion reactions during RYBREVANT® infusion in a setting where cardiopulmonary resuscitation medication and equipment are available. Interrupt infusion if IRR is suspected. Reduce the infusion rate or permanently discontinue RYBREVANT® based on severity. Interstitial Lung Disease/Pneumonitis RYBREVANT ® can cause interstitial lung disease (ILD)/pneumonitis. RYBREVANT® with Carboplatin and Pemetrexed Based on the safety population, Grade 3 ILD/pneumonitis occurred in 2.6% of patients treated with RYBREVANT® in combination with carboplatin and pemetrexed. All patients required permanent discontinuation. RYBREVANT® as a Single Agent Based on the safety population, ILD/pneumonitis occurred in 3.3% of patients treated with RYBREVANT ®, with 0.7% of patients experiencing Grade 3 ILD/pneumonitis. Three patients (1%) discontinued RYBREVANT ® due to ILD/pneumonitis. Monitor patients for new or worsening symptoms indicative of ILD/pneumonitis (e.g., dyspnea, cough, fever). Immediately withhold RYBREVANT ® in patients with suspected ILD/pneumonitis and permanently discontinue if ILD/pneumonitis is confirmed. Dermatologic Adverse Reactions RYBREVANT ® can cause rash (including dermatitis acneiform), pruritus and dry skin. RYBREVANT® with Carboplatin and Pemetrexed RYBREVANT® in combination with carboplatin and pemetrexed can cause dermatologic adverse reactions. Based on the safety population, rash occurred in 89% of patients treated with RYBREVANT® in combination with carboplatin and pemetrexed, including Grade 3 (19%) adverse reactions. Rash leading to dose reductions occurred in 19% of patients; 2% permanently discontinued RYBREVANT®, and 1.3% discontinued pemetrexed. RYBREVANT® as a Single Agent Based on the safety population, rash occurred in 74% of patients treated with RYBREVANT ®, including Grade 3 rash in 3.3% of patients. The median time to onset of rash was 14 days (range: 1 to 276 days). Rash leading to dose reduction occurred in 5% of patients, and RYBREVANT ® was permanently discontinued due to rash in 0.7% of patients. Toxic epidermal necrolysis occurred in one patient (0.3%) treated with RYBREVANT ® as a single agent. Instruct patients to limit sun exposure during and for 2 months after treatment with RYBREVANT ®. Advise patients to wear protective clothing and use broad-spectrum UVA/UVB sunscreen. Alcohol-free emollient cream is recommended for dry skin. If skin reactions develop, start topical corticosteroids and topical and/or oral antibiotics. For Grade 3 reactions, add oral steroids and consider dermatologic consultation. Promptly refer patients presenting with severe rash, atypical appearance or distribution, or lack of improvement within 2 weeks to a dermatologist. Withhold, dose reduce, or permanently discontinue RYBREVANT ® based on severity. Ocular Toxicity RYBREVANT ® can cause ocular toxicity including keratitis, dry eye symptoms, conjunctival redness, blurred vision, visual impairment, ocular itching, and uveitis. RYBREVANT® with Carboplatin and Pemetrexed Based on the safety population, RYBREVANT® in combination with carboplatin and pemetrexed can cause ocular toxicity including blepharitis, dry eye, conjunctival redness, blurred vision, and eye pruritus. All events were Grade 1-2. RYBREVANT® as a Single Agent Based on the safety population, keratitis occurred in 0.7% and uveitis occurred in 0.3% of patients treated with RYBREVANT ®. All events were Grade 1-2. Promptly refer patients presenting with eye symptoms to an ophthalmologist. Withhold, dose reduce, or permanently discontinue RYBREVANT ® based on severity. Embryo-Fetal Toxicity Based on its mechanism of action and findings from animal models, RYBREVANT® can cause fetal harm when administered to a pregnant woman. Advise females of reproductive potential of the potential risk to the fetus. Advise female patients of reproductive potential to use effective contraception during treatment and for 3 months after the last dose of RYBREVANT®. Adverse Reactions RYBREVANT® with Carboplatin and Pemetrexed For the 151 patients in the PAPILLON clinical trial who received RYBREVANT® in combination with carboplatin and pemetrexed, the most common adverse reactions (≥20%) were rash (90%), nail toxicity (62%), stomatitis (43%), infusion-related reaction (42%), fatigue (42%), edema (40%), constipation (40%), decreased appetite (36%), nausea (36%), COVID-19 (24%), diarrhea (21%), and vomiting (21%). The most common Grade 3 to 4 laboratory abnormalities (≥2%) were decreased albumin (7%), increased alanine aminotransferase (4%), increased gamma-glutamyl transferase (4%), decreased sodium (7%), decreased potassium (11%), decreased magnesium (2%), and decreases in white blood cells (17%), hemoglobin (11%), neutrophils (36%), platelets (10%), and lymphocytes (11%). Serious adverse reactions occurred in 37% of patients who received RYBREVANT® in combination with carboplatin and pemetrexed. Serious adverse reactions in ≥2% of patients included rash, pneumonia, ILD, pulmonary embolism, vomiting, and COVID-19. Fatal adverse reactions occurred in 7 patients (4.6%) due to pneumonia, cerebrovascular accident, cardio-respiratory arrest, COVID-19, sepsis, and death not otherwise specified. RYBREVANT® as a Single Agent For the 129 patients in the CHRYSALIS clinical trial who received RYBREVANT® as a single agent, the most common adverse reactions (≥20%) were rash (84%), IRR (64%), paronychia (50%), musculoskeletal pain (47%), dyspnea (37%), nausea (36%), fatigue (33%), edema (27%), stomatitis (26%), cough (25%), constipation (23%), and vomiting (22%). The most common Grade 3 to 4 laboratory abnormalities (≥2%) were decreased lymphocytes (8%), decreased albumin (8%), decreased phosphate (8%), decreased potassium (6%), increased alkaline phosphatase (4.8%), increased glucose (4%), increased gamma-glutamyl transferase (4%), and decreased sodium (4%). Serious adverse reactions occurred in 30% of patients who received RYBREVANT®. Serious adverse reactions in ≥2% of patients included pulmonary embolism, pneumonitis/ILD, dyspnea, musculoskeletal pain, pneumonia, and muscular weakness. Fatal adverse reactions occurred in 2 patients (1.5%) due to pneumonia and 1 patient (0.8%) due to sudden death. Please read the full Prescribing Information for RYBREVANT®. About Johnson & Johnson At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and MedTech, we are uniquely positioned to innovate across the full spectrum of healthcare solutions today to deliver the breakthroughs of tomorrow, and profoundly impact health for humanity. Learn more at or at . Follow us at @JanssenUS and @JNJInnovMed. Janssen Research & Development, LLC, and Janssen Biotech, Inc. are Johnson & Johnson companies. Cautions Concerning Forward-Looking Statements This press release contains "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995 regarding product development and the potential benefits and treatment impact of RYBREVANT® (amivantamab-vmjw) and lazertinib. The reader is cautioned not to rely on these forward-looking statements. These statements are based on current expectations of future events. If underlying assumptions prove inaccurate or known or unknown risks or uncertainties materialize, actual results could vary materially from the expectations and projections of Janssen Research & Development, LLC, Janssen Biotech, Inc. and Johnson & Johnson. Risks and uncertainties include, but are not limited to: challenges and uncertainties inherent in product research and development, including the uncertainty of clinical success and of obtaining regulatory approvals; uncertainty of commercial success; competition, including technological advances, new products and patents attained by competitors; challenges to patents; changes in behavior and spending patterns of purchasers of health care products and services; changes to applicable laws and regulations, including global health care reforms; and trends toward health care cost containment. A further list and descriptions of these risks, uncertainties and other factors can be found in Johnson & Johnson's Annual Report on Form 10-K for the fiscal year ended December 31, 2023, including in the sections captioned "Cautionary Note Regarding Forward-Looking Statements" and "Item 1A. Risk Factors," and in Johnson & Johnson's subsequent Quarterly Reports on Form 10-Q and other filings with the Securities and Exchange Commission. Copies of these filings are available online at , or on request from Johnson & Johnson. None of Janssen Research & Development, LLC, Janssen Biotech, Inc. nor Johnson & Johnson undertake to update any forward-looking statement as a result of new information or future events or developments. †See the NCCN Guidelines for detailed recommendations, including other treatment options. ‡The NCCN Guidelines for NSCLC provide recommendations for certain individual biomarkers that should be tested and recommend testing techniques but do not endorse any specific commercially available biomarker assays or commercial laboratories. §The NCCN Content does not constitute medical advice and should not be used in place of seeking professional medical advice, diagnosis or treatment by licensed practitioners. 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. 1 Campelo et al. Effect of Amivantamab Dose Interruptions on Efficacy and Safety of First-line Amivantamab Plus Lazertinib in EGFR-mutant Advanced NSCLC: Exploratory Analyses from the MARIPOSA study, a Randomized Phase 3 Global Study. European Lung Cancer Congress 2024. March 2024. 2 Leighl et al. Subcutaneous amivantamab administered every 4 weeks (Q4W) in patients with advanced solid malignancies: The phase 1b PALOMA study, a Randomized Phase 1 Global Study. European Lung Cancer Congress 2024. March 2024. 3 Felip et al. Amivantamab Plus Chemotherapy vs Chemotherapy as First-Line Treatment in EGFR Exon 20 Insertion-mutated Advanced NSCLC: Analysis of Post-Progression Endpoints From PAPILLON, a Randomized Phase 3 Global Study. European Lung Cancer Congress 2024. March 2024. 4 Gentzler et al. Amivantamab Plus Chemotherapy vs Chemotherapy in EGFR-mutant Advanced NSCLC After Progression on Osimertinib: A Post-progression Analysis of MARIPOSA-2, a Randomized Phase 3 Global Study. European Lung Cancer Congress 2024. March 21, 2024. 5 RYBREVANT® Prescribing Information. Horsham, PA: Janssen Biotech, Inc. 6 Referenced with permission from the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for Non-Small Cell Lung Cancer V.1.2024© National Comprehensive Cancer Network, Inc. All rights reserved. To view the most recent and complete version of the guideline, go online to NCCN.org. Accessed March 2024. 7 ClinicalTrials.gov. A Study of Combination Amivantamab and Carboplatin-Pemetrexed Therapy, Compared With Carboplatin-Pemetrexed, in Participants With Advanced or Metastatic Non-Small Cell Lung Cancer Characterized by Epidermal Growth Factor Receptor (EGFR) Exon 20 Insertions (PAPILLON). Available at: . Accessed March 2024. 8 ClinicalTrials.gov. A Study of Amivantamab and Lazertinib in Combination With Platinum-Based Chemotherapy Compared With Platinum-Based Chemotherapy in Patients With Epidermal Growth Factor Receptor (EGFR)-Mutated Locally Advanced or Metastatic Non-Small Cell Lung Cancer After Osimertinib Failure (MARIPOSA-2). Available at: . Accessed March 2024. 9 ClinicalTrials.gov. A Study of Amivantamab and Lazertinib Combination Therapy Versus Osimertinib in Locally Advanced or Metastatic Non-Small Cell Lung Cancer (MARIPOSA). Available at: . Accessed March 2024. 10 ClinicalTrials.gov. A Study of Amivantamab, a Human Bispecific EGFR and cMet Antibody, in Participants With Advanced Non-Small Cell Lung Cancer (CHRYSALIS). . Accessed March 2024. 11 ClinicalTrials.gov. A Study of Lazertinib as Monotherapy or in Combination With Amivantamab in Participants With Advanced Non-small Cell Lung Cancer (CHRYSALIS-2). . Accessed March 2024. 12 ClinicalTrials.gov. A Study of Amivantamab Subcutaneous (SC) Administration for the Treatment of Advanced Solid Malignancies (PALOMA). Available at: . Accessed March 2024. 13 ClinicalTrials.gov. A Study of Amivantamab in Participants With Advanced or Metastatic Solid Tumors Including Epidermal Growth Factor Receptor (EGFR)-Mutated Non-Small Cell Lung Cancer (PALOMA-2). . Accessed March 2024. 14 ClinicalTrials.gov. A Study of Lazertinib With Subcutaneous Amivantamab Compared With Intravenous Amivantamab in Participants With Epidermal Growth Factor Receptor (EGFR)-Mutated Advanced or Metastatic Non-small Cell Lung Cancer (PALOMA-3). . Accessed March 2024. 15 ClinicalTrials.gov. A Study of Amivantamab and Capmatinib Combination Therapy in Unresectable Metastatic Non-small Cell Lung Cancer (METalmark). . Accessed March 2024. 16 ClinicalTrials.gov. A Study of Combination Therapy With Amivantamab and Cetrelimab in Participants With Metastatic Non-small Cell Lung Cancer (PolyDamas). . Accessed March 2024. 17 ClinicalTrials.gov. Premedication to Reduce Amivantamab Associated Infusion Related Reactions (SKIPPirr). . Accessed March 2024. 18 The World Health Organization. Cancer. . Accessed March 2024. 19 American Cancer Society. What is Lung Cancer? . Accessed March 2024. 20 Oxnard JR, et al. Natural history and molecular characteristics of lung cancers harboring EGFR exon 20 insertions. J Thorac Oncol. 2013 Feb;8(2):179-84. doi: 10.1097/JTO.0b013e3182779d18. 21 Bauml JM, et al. Underdiagnosis of EGFR Exon 20 Insertion Mutation Variants: Estimates from NGS-based Real World Datasets. Abstract presented at: World Conference on Lung Cancer Annual Meeting; January 29, 2021; Singapore. 22 Pennell NA, et al. A phase II trial of adjuvant erlotinib in patients with resected epidermal growth factor receptor-mutant non-small cell lung cancer. J Clin Oncol. 37:97-104. 23 Burnett H, et al. Epidemiological and clinical burden of EGFR exon 20 insertion in advanced non-small cell lung cancer: a systematic literature review. Abstract presented at: World Conference on Lung Cancer Annual Meeting; January 29, 2021; Singapore. 24 Zhang YL, et al. The prevalence of EGFR mutation in patients with non-small cell lung cancer: a systematic review and meta-analysis. Oncotarget. 2016;7(48):78985-78993. 25 Midha A, et al. EGFR mutation incidence in non-small-cell lung cancer of adenocarcinoma histology: a systematic review and global map by ethnicity. Am J Cancer Res. 2015;5(9):2892-2911. 26 American Lung Association. EGFR and Lung Cancer. . Accessed March 2024. 27 Howlader N, et al. SEER Cancer Statistics Review, 1975-2016, National Cancer Institute. Bethesda, MD, , based on November 2018 SEER data submission, posted to the SEER web site. 28 Lin JJ, et al. Five-Year Survival in EGFR-Mutant Metastatic Lung Adenocarcinoma Treated with EGFR-TKIs. J Thorac Oncol. 2016 Apr;11(4):556-65. 29 Arcila, M. et al. EGFR exon 20 insertion mutations in lung adenocarcinomas: prevalence, molecular heterogeneity, and clinicopathologic characteristics. Mol Cancer Ther. 2013 Feb; 12(2):220-9. 30 Girard N, et al. Comparative clinical outcomes for patients with NSCLC harboring EGFR exon 20 insertion mutations and common EGFR mutations. Abstract presented at: World Conference on Lung Cancer Annual Meeting; January 29, 2021; Singapore. SOURCE Johnson & Johnson

PHILADELPHIA--( BUSINESS WIRE )--GSK plc (LSE/NYSE: GSK) today announced statistically significant and clinically meaningful overall survival (OS) results from Part 1 and progression-free survival (PFS) results from Part 2 of the RUBY/ENGOT-EN6/GOG3031/NSGO phase III trial in adult patients with primary advanced or recurrent endometrial cancer. These data were presented today in a late-breaking plenary session at the Society of Gynecologic Oncology 2024 Annual Meeting on Women’s Cancer (March 16-18). The goal of the RUBY phase III trial program is to evaluate which patients with primary advanced or recurrent endometrial cancer could potentially benefit from treatment with Jemperli (dostarlimab-gxly) plus chemotherapy, with or without the addition of Zejula (niraparib) maintenance. Part 1 of the RUBY phase III trial is investigating dostarlimab-gxly plus standard-of-care chemotherapy (carboplatin-paclitaxel) followed by dostarlimab-gxly compared to chemotherapy plus placebo followed by placebo. Part 2 of the RUBY phase III trial is evaluating dostarlimab-gxly plus standard-of-care chemotherapy, followed by dostarlimab-gxly plus niraparib as maintenance therapy compared to chemotherapy plus placebo followed by placebo. The safety and tolerability profiles of dostarlimab-gxly plus carboplatin-paclitaxel and dostarlimab-gxly plus carboplatin-paclitaxel followed by dostarlimab-glxy plus niraparib were generally consistent with the known safety profiles of the individual medicines. Previous data showed a statistically significant and clinically meaningful improvement in PFS with Jemperli plus chemotherapy versus chemotherapy alone in frontline mismatch repair deficient (dMMR)/microsatellite instability-high (MSI-H) primary advanced or recurrent endometrial cancer. These data led to regulatory approvals for this patient population in the US, EU and certain other countries. Data presented today show additional potential benefit of dostarlimab-gxly plus chemotherapy, with or without the addition of niraparib, in the overall population of patients with primary advanced or recurrent endometrial cancer, including patients with mismatch repair proficient (MMRp)/microsatellite stable (MSS) tumors, for which there are currently no approved immuno-therapy-based regimens. Hesham Abdullah, Senior Vice President, Global Head Oncology, R&D, GSK said : “ The positive data presented today further show how dostarlimab-gxly-based regimens could benefit a broader set of patients with endometrial cancer. The results we’ve seen to date comprise the growing body of evidence supporting the role of dostarlimab-gxly as the backbone of our immuno-oncology development program. Our goal is to continue to identify ways to use dostarlimab-gxly alone and in combination with other therapies to help improve outcomes for patients with limited treatment options.” RUBY Part 1: a statistically significant and clinically meaningful improvement in OS was observed for dostarlimab-gxly plus chemotherapy versus placebo plus chemotherapy, meeting a primary endpoint of the study. Dostarlimab-gxly plus chemotherapy versus chemotherapy alone showed: In the overall population: a statistically significant reduction in the risk of death by 31% (Hazard Ratio [HR]: 0.69; [95% CI: 0.539–0.890]) a clinically meaningful improvement of 16.4 months in median OS (44.6 months vs 28.2 months) In a prespecified exploratory analysis of the MMRp/MSS population: a clinically meaningful trend in reduced risk of death by 21% (HR: 0.79; [95% CI: 0.602–1.044]) a clinically meaningful improvement of seven months in median OS (34.0 months vs 27.0 months) Full OS summaries are shown below. dostarlimab-gxly + carboplatin-paclitaxel placebo + carboplatin-paclitaxel Overall population, Number (N) 245 249 OS, HR (95% CI) 0.69 (0.539–0.890) P -value 1 0.002 OS, median (95% CI), mo. 44.6 (32.6–NR) 28.2 (22.1–35.6) dMMR/MSI-H population 2 , N 53 65 OS, HR (95% CI) 0.32 (0.166–0.629) OS, median 3 (95% CI), mo. NR (NR–NR) 31.4 (20.3–NR) MMRp/MSS2, N 192 184 OS, HR (95% CI) 0.79 (0.602–1.044) OS, median (95% CI), mo. 34.0 (28.6–NR) 27.0 (21.5–35.6) 1 One-sided p-value based on stratified log-rank test. 2 Exploratory analyses of OS in dMMR/MSI-H and OS in MMRp/MSS populations were pre-specified with no planned hypothesis testing. 3 Although the median OS was not reached, at 30 months the estimated reduction in the risk of death was 82.8% for patients who received dostarlimab plus chemotherapy vs. 54.1% for patients who received chemotherapy alone. Matthew Powell, MD, Division of Gynecologic Oncology, Washington University School of Medicine, and US principal investigator of the RUBY trial said: “ RUBY Part 1 is the first clinical trial to show a statistically significant and clinically meaningful improvement in overall survival for an immuno-oncology therapy in combination with chemotherapy in the overall population of patients with primary advanced or recurrent endometrial cancer. As a clinician, I celebrate the results of the RUBY Part 1 trial presented today, which show how dostarlimab-gxly added to chemotherapy could potentially benefit a broader set of patients with this type of cancer.” In RUBY Part 1, grade 3 or higher and serious treatment-emergent adverse events (AEs) were approximately 12% higher in the dostarlimab-gxly plus carboplatin-paclitaxel arm (treatment arm) compared with the placebo plus carboplatin-paclitaxel arm (control arm). The nature and types of immune-related AEs in the dostarlimab-gxly plus chemotherapy safety profile were consistent with the mechanism of action of dostarlimab-gxly and similar to those reported for other PD-(L)1 inhibitors. In the trial, 40.7% of participants in the treatment arm and 16.3% of participants in the control arm had immune-related AEs assessed by the investigator as related to dostarlimab-gxly or placebo, respectively. Discontinuation of dostarlimab-gxly or placebo due to a treatment-emergent AE occurred in 19.1% of patients in the treatment arm and 8.1% of patients in the control arm. GSK expects US Food and Drug Administration regulatory submission acceptance based on RUBY Part 1 data for an expanded indication in the overall population in the first half of this year. RUBY Part 2: addition of niraparib to dostarlimab-gxly in maintenance setting significantly improved PFS in first-line primary advanced or recurrent endometrial cancer compared to chemotherapy alone, meeting the primary endpoint of the trial. Dostarlimab-gxly plus chemotherapy followed by dostarlimab-gxly plus niraparib compared to placebo plus chemotherapy followed by placebo showed: In the overall population: a statistically significant reduction in the risk of disease progression or death by 40% (HR: 0.60 [95% CI: 0.43–0.82]) a clinically meaningful improvement of 6.2 months in median PFS (14.5 months vs 8.3 months) In the MMRp/MSS population: a statistically significant reduction in the risk of disease progression or death by 37% (HR: 0.63 [95% CI: 0.44–0.91]) a clinically meaningful improvement of 6.0 months in median PFS (14.3 months vs 8.3 months) Dr Mansoor Raza Mirza, Chief Oncologist, Copenhagen University Hospital, Denmark, and RUBY principal investigator said : “ In RUBY Part 2, we observed that the use of dostarlimab-gxly in combination with niraparib in the maintenance therapy setting further improved progression-free survival versus placebo for patients with primary advanced or recurrent endometrial cancer. These findings are particularly important for patients who have MMRp/MSS tumors as the data help build on the initial benefit observed with an immuno-oncology plus chemotherapy regimen, reflecting the potential for the addition of niraparib maintenance to address unmet medical need for these patients.” In RUBY Part 2, grade 3 or higher and serious treatment-emergent AEs were approximately 36% and 24% higher, respectively, in the dostarlimab-gxly plus chemotherapy followed by dostarlimab-gxly plus niraparib arm (treatment arm) compared with the placebo plus chemotherapy followed by placebo arm (control arm). In the trial, 36.6% of participants in the treatment arm and 6.3% of participants in the control arm had immune-related AEs assessed by the investigator as related to dostarlimab-gxly or placebo, respectively. No cases of myelodysplastic syndrome/acute myeloid leukemia were reported; other secondary primary malignancies occurred in 1 patient each in both treatment arms. Discontinuation of dostarlimab-gxly or placebo due to a TEAE occurred in 24.1% of patients in the treatment arm and 5.2% of patients in the control arm. Discontinuation of niraparib or placebo due to a treatment-emergent AE occurred in 15.7% of patients in the treatment arm and 4.2% of patients in the control arm. About endometrial cancer Endometrial cancer is found in the inner lining of the uterus, known as the endometrium. Endometrial cancer is the most common gynecologic cancer in developed countries, with approximately 417,000 new cases reported each year worldwide 1 , and incidence rates are expected to rise by almost 40% between 2020 and 2040. 2,3 Approximately 15-20% of patients with endometrial cancer will be diagnosed with advanced disease at the time of diagnosis. 4 About RUBY RUBY is a two-part global, randomized, double-blind, multicenter phase III trial of patients with primary advanced or recurrent endometrial cancer. Part 1 is evaluating dostarlimab-gxly plus carboplatin-paclitaxel followed by dostarlimab-gxly versus carboplatin-paclitaxel plus placebo followed by placebo. Part 2 is evaluating dostarlimab-gxly plus carboplatin-paclitaxel followed by dostarlimab-gxly plus niraparib versus placebo plus carboplatin-paclitaxel followed by placebo. In Part 1, the dual-primary endpoints are investigator-assessed PFS based on the Response Evaluation Criteria in Solid Tumors v1.1 and OS. The statistical analysis plan included pre-specified analyses of PFS in the dMMR/MSI-H and overall populations and OS in the overall population. Pre-specified exploratory analyses of PFS and OS in the MMRp/MSS population and OS in the dMMR/MSI-H populations were also performed. RUBY Part 1 included a broad population, including histologies often excluded from clinical trials and had approximately 10% of patients with carcinosarcoma and 20% with serous carcinoma. In Part 2, the primary endpoint is investigator-assessed PFS in the overall population, followed by PFS in the MMRp/MSS population, and OS in the overall population is a key secondary endpoint. Additional secondary endpoints in Part 1 and Part 2 include PFS per blinded independent central review, PFS2, overall response rate, duration of response, disease control rate, patient-reported outcomes, and safety and tolerability. RUBY is part of an international collaboration between the European Network of Gynaecological Oncological Trial groups (ENGOT), a research network of the European Society of Gynaecological Oncology (ESGO) that consists of 22 trial groups from 31 European countries that perform cooperative clinical trials, and the GOG Foundation, a non-profit organization dedicated to transforming the standard of care in gynecologic oncology. About Jemperli (dostarlimab-gxly) Jemperli is a programmed death receptor-1 (PD-1)-blocking antibody that binds to the PD-1 receptor and blocks its interaction with the PD-1 ligands PD-L1 and PD-L2. 5 Jemperli was discovered by AnaptysBio, Inc. and licensed to TESARO, Inc., under a collaboration and exclusive license agreement signed in March 2014. Under this agreement, GSK is responsible for the ongoing research, development, commercialization, and manufacturing of Jemperli , and cobolimab (GSK4069889), a TIM-3 antagonist. Indications and Important Safety Information for JEMPERLI (dostarlimab-gxly) JEMPERLI, in combination with carboplatin and paclitaxel, followed by JEMPERLI as a single agent, is indicated for the treatment of adult patients with primary advanced or recurrent endometrial cancer (EC) that is mismatch repair deficient (dMMR), as determined by an FDA-approved test, or microsatellite instability-high (MSI-H). JEMPERLI, as a single agent, is indicated for the treatment of adult patients with dMMR recurrent or advanced: EC, as determined by an FDA-approved test, that has progressed on or following prior treatment with a platinum-containing regimen in any setting and are not candidates for curative surgery or radiation, or solid tumors, as determined by an FDA-approved test, that have progressed on or following prior treatment and who have no satisfactory alternative treatment options. This indication is approved under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). Important Safety Information Severe and Fatal Immune-Mediated Adverse Reactions Immune-mediated adverse reactions, which can be severe or fatal, can occur in any organ system or tissue and can occur at any time during or after treatment with a PD-1/PD-L1–blocking antibody, including JEMPERLI. Monitor closely for signs and symptoms of immune-mediated adverse reactions. Evaluate liver enzymes, creatinine, and thyroid function tests at baseline and periodically during treatment. For suspected immune-mediated adverse reactions, initiate appropriate workup to exclude alternative etiologies, including infection. Institute medical management promptly, including specialty consultation as appropriate. Based on the severity of the adverse reaction, withhold or permanently discontinue JEMPERLI. In general, if JEMPERLI requires interruption or discontinuation, administer systemic corticosteroids (1 to 2 mg/kg/day prednisone or equivalent) until improvement to ≤Grade 1. Upon improvement to ≤Grade 1, initiate corticosteroid taper and continue to taper over at least 1 month. Consider administration of other systemic immunosuppressants in patients whose immune-mediated adverse reaction is not controlled with corticosteroids. Immune-Mediated Pneumonitis JEMPERLI can cause immune-mediated pneumonitis, which can be fatal. In patients treated with other PD-1/PD-L1–blocking antibodies, the incidence of pneumonitis is higher in patients who have received prior thoracic radiation. Pneumonitis occurred in 2.3% (14/605) of patients, including Grade 2 (1.3%), Grade 3 (0.8%), and Grade 4 (0.2%) pneumonitis. Immune-Mediated Colitis Colitis occurred in 1.3% (8/605) of patients, including Grade 2 (0.7%) and Grade 3 (0.7%) adverse reactions. Cytomegalovirus infection/reactivation have occurred in patients with corticosteroid-refractory immune-mediated colitis. In such cases, consider repeating infectious workup to exclude alternative etiologies. Immune-Mediated Hepatitis JEMPERLI can cause immune-mediated hepatitis, which can be fatal. Grade 3 hepatitis occurred in 0.5% (3/605) of patients. Immune-Mediated Endocrinopathies Adrenal Insufficiency Adrenal insufficiency occurred in 1.2% (7/605) of patients, including Grade 2 (0.5%) and Grade 3 (0.7%). For Grade 2 or higher adrenal insufficiency, initiate symptomatic treatment per institutional guidelines, including hormone replacement as clinically indicated. Withhold or permanently discontinue JEMPERLI depending on severity. Hypophysitis JEMPERLI can cause immune-mediated hypophysitis. Grade 3 hypophysitis occurred in 0.4% (1/241) of patients receiving JEMPERLI in combination with carboplatin and paclitaxel. Grade 2 hypophysitis occurred in 0.2% (1/605) of patients receiving JEMPERLI as a single agent. Initiate hormone replacement as clinically indicated. Withhold or permanently discontinue JEMPERLI depending on severity. Thyroid Disorders Grade 2 thyroiditis occurred in 0.5% (3/605) of patients. Grade 2 hypothyroidism occurred in 12% (28/241) of patients receiving JEMPERLI in combination with carboplatin and paclitaxel. Grade 2 hypothyroidism occurred in 8% (46/605) of patients receiving JEMPERLI as a single agent. Hyperthyroidism occurred in 3.3% (8/241) of patients receiving JEMPERLI in combination with carboplatin and paclitaxel, including Grade 2 (2.9%) and Grade 3 (0.4%). Hyperthyroidism occurred in 2.3% (14/605) of patients receiving JEMPERLI as a single agent, including Grade 2 (2.1%) and Grade 3 (0.2%). Initiate thyroid hormone replacement or medical management of hyperthyroidism as clinically indicated. Withhold or permanently discontinue JEMPERLI depending on severity. Type 1 Diabetes Mellitus, Which Can Present with Diabetic Ketoacidosis JEMPERLI can cause type 1 diabetes mellitus, which can present with diabetic ketoacidosis. Grade 3 type 1 diabetes mellitus occurred in 0.4% (1/241) of patients receiving JEMPERLI in combination with carboplatin and paclitaxel. Grade 3 type 1 diabetes mellitus occurred in 0.2% (1/605) of patients receiving JEMPERLI as a single agent. Monitor patients for hyperglycemia or other signs and symptoms of diabetes. Initiate treatment with insulin as clinically indicated. Withhold or permanently discontinue JEMPERLI depending on severity. Immune-Mediated Nephritis with Renal Dysfunction JEMPERLI can cause immune-mediated nephritis, which can be fatal. Grade 2 nephritis, including tubulointerstitial nephritis, occurred in 0.5% (3/605) of patients. Immune-Mediated Dermatologic Adverse Reactions JEMPERLI can cause immune-mediated rash or dermatitis. Bullous and exfoliative dermatitis, including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug rash with eosinophilia and systemic symptoms (DRESS), have occurred with PD-1/PD-L1–blocking antibodies. Topical emollients and/or topical corticosteroids may be adequate to treat mild to moderate non-bullous/exfoliative rashes. Withhold or permanently discontinue JEMPERLI depending on severity. Other Immune-Mediated Adverse Reactions The following clinically significant immune-mediated adverse reactions occurred in <1% of the 605 patients treated with JEMPERLI or were reported with the use of other PD-1/PD-L1–blocking antibodies. Severe or fatal cases have been reported for some of these adverse reactions. Nervous System: Meningitis, encephalitis, myelitis and demyelination, myasthenic syndrome/myasthenia gravis, Guillain-Barré syndrome, nerve paresis, autoimmune neuropathy Cardiac/Vascular: Myocarditis, pericarditis, vasculitis Ocular: Uveitis, iritis, other ocular inflammatory toxicities. Some cases can be associated with retinal detachment. Various grades of visual impairment to include blindness can occur Gastrointestinal: Pancreatitis, including increases in serum amylase and lipase levels, gastritis, duodenitis Musculoskeletal and Connective Tissue: Myositis/polymyositis, rhabdomyolysis and associated sequelae including renal failure, arthritis, polymyalgia rheumatica Endocrine: Hypoparathyroidism Other (Hematologic/Immune): Autoimmune hemolytic anemia, aplastic anemia, hemophagocytic lymphohistiocytosis, systemic inflammatory response syndrome, histiocytic necrotizing lymphadenitis (Kikuchi lymphadenitis), sarcoidosis, immune thrombocytopenia, solid organ transplant rejection, other transplant (including corneal graft) rejection Infusion-Related Reactions Severe or life-threatening infusion-related reactions have been reported with PD-1/PD-L1–blocking antibodies. Severe infusion-related reactions (Grade 3) occurred in 0.2% (1/605) of patients receiving JEMPERLI. Monitor patients for signs and symptoms of infusion-related reactions. Interrupt or slow the rate of infusion or permanently discontinue JEMPERLI based on severity of reaction. Complications of Allogeneic HSCT Fatal and other serious complications can occur in patients who receive allogeneic hematopoietic stem cell transplantation (HSCT) before or after treatment with a PD-1/PD-L1–blocking antibody, which may occur despite intervening therapy. Monitor patients closely for transplant-related complications and intervene promptly. Embryo-Fetal Toxicity and Lactation Based on its mechanism of action, JEMPERLI can cause fetal harm. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with JEMPERLI and for 4 months after their last dose. Because of the potential for serious adverse reactions from JEMPERLI in a breastfed child, advise women not to breastfeed during treatment with JEMPERLI and for 4 months after their last dose. Common Adverse Reactions The most common adverse reactions (≥20%) in patients with dMMR/MSI-H EC who received JEMPERLI in combination with carboplatin and paclitaxel were rash, diarrhea, hypothyroidism, and hypertension. The most common Grade 3 or 4 laboratory abnormalities (≥10%) were decreased neutrophils, decreased hemoglobin, decreased white blood cell count, decreased lymphocytes, increased glucose, decreased sodium, and decreased platelets. The most common adverse reactions (≥20%) in patients with dMMR EC who received JEMPERLI as a single agent were fatigue/asthenia, anemia, nausea, diarrhea, constipation, vomiting, and rash. The most common Grade 3 or 4 laboratory abnormalities (>2%) were decreased lymphocytes, decreased sodium, increased alanine aminotransferase, increased creatinine, decreased neutrophils, decreased albumin, and increased alkaline phosphatase. The most common adverse reactions (≥20%) in patients with dMMR solid tumors who received JEMPERLI as a single agent were fatigue/asthenia, anemia, diarrhea, and nausea. The most common Grade 3 or 4 laboratory abnormalities (≥2%) were decreased lymphocytes, decreased sodium, increased alkaline phosphatase, and decreased albumin. Please see the full US Prescribing Information for JEMPERLI . About Zejula (niraparib) Zejula is an oral, once-daily poly(ADP-ribose) polymerase (PARP) inhibitor. Indication and Important Safety Information for ZEJULA (niraparib) ZEJULA (niraparib) tablets 100 mg/200 mg/300 mg are indicated: for first-line maintenance treatment of adult patients with advanced epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to first-line platinum-based chemotherapy for the maintenance treatment of adult patients with deleterious or suspected deleterious germline BRCA- mutated recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. Select patients for therapy based on an FDA-approved companion diagnostic for ZEJULA Important Safety Information Myelodysplastic syndrome/acute myeloid leukemia (MDS/AML), including cases with a fatal outcome, have been reported in patients who received ZEJULA. In PRIMA, MDS/AML occurred in 6 out of 484 (1.2%) patients treated with ZEJULA, and in 3 out of 244 (1.2%) patients treated with placebo. The duration of therapy with ZEJULA in patients who developed secondary MDS/cancer therapy-related AML varied from 3.7 months to 2.5 years. In NOVA , of patients within the g BRCA mut cohort, MDS/AML occurred in 10 out of 136 (7%) patients treated with ZEJULA and in 2 out of 65 (3%) patients treated with placebo. The duration of therapy with ZEJULA in patients who developed secondary MDS/cancer therapy-related AML varied from 3.6 months to 5.9 years. All patients who developed secondary MDS/cancer therapy-related AML had received previous chemotherapy with platinum agents and/or other DNA-damaging agents, including radiotherapy. For suspected MDS/AML or prolonged hematological toxicities, refer the patient to a hematologist for further evaluation. Discontinue ZEJULA if MDS/AML is confirmed. Hematologic adverse reactions (thrombocytopenia, anemia, neutropenia, and/or pancytopenia) have been reported in patients receiving ZEJULA. The overall incidence of Grade ≥3 thrombocytopenia, anemia, and neutropenia were reported, respectively, in 39%, 31%, and 21% of patients receiving ZEJULA in PRIMA and 29%, 25%, and 20% of patients receiving ZEJULA in NOVA. Discontinuation due to thrombocytopenia, anemia, and neutropenia occurred, respectively, in 4%, 2%, and 2% of patients in PRIMA and 3%, 1%, and 2% of patients in NOVA. In patients who were administered a starting dose of ZEJULA based on baseline weight or platelet count in PRIMA, Grade ≥3 thrombocytopenia, anemia, and neutropenia were reported, respectively, in 22%, 23%, and 15% of patients receiving ZEJULA. Discontinuation due to thrombocytopenia, anemia, and neutropenia occurred, respectively, in 3%, 3%, and 2% of patients. Do not start ZEJULA until patients have recovered from hematological toxicity caused by prior chemotherapy (≤Grade 1). Monitor complete blood counts weekly for the first month, monthly for the next 11 months, and periodically thereafter. If hematological toxicities do not resolve within 28 days following interruption, discontinue ZEJULA, and refer the patient to a hematologist for further investigations. Hypertension and hypertensive crisis have been reported in patients receiving ZEJULA. Grade 3-4 hypertension occurred in 6% of patients receiving ZEJULA vs 1% of patients receiving placebo in PRIMA, with no reported discontinuations. Grade 3-4 hypertension occurred in 9% of patients receiving ZEJULA vs 2% of patients receiving placebo in NOVA, with discontinuation occurring in <1% of patients. Monitor blood pressure and heart rate at least weekly for the first two months, then monthly for the first year, and periodically thereafter during treatment with ZEJULA. Closely monitor patients with cardiovascular disorders, especially coronary insufficiency, cardiac arrhythmias, and hypertension. Manage hypertension with antihypertensive medications and adjustment of the ZEJULA dose if necessary. Posterior reversible encephalopathy syndrome (PRES) occurred in 0.1% of 2,165 patients treated with ZEJULA in clinical trials and has also been described in postmarketing reports. Monitor all patients for signs and symptoms of PRES, which include seizure, headache, altered mental status, visual disturbance, or cortical blindness, with or without associated hypertension. Diagnosis requires confirmation by brain imaging. If suspected, promptly discontinue ZEJULA and administer appropriate treatment. The safety of reinitiating ZEJULA is unknown. Embryo-fetal toxicity and lactation: Based on its mechanism of action, ZEJULA can cause fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception during treatment and for 6 months after receiving their final dose of ZEJULA. Because of the potential for serious adverse reactions from ZEJULA in breastfed infants, advise lactating women not to breastfeed during treatment with ZEJULA and for 1 month after receiving the last dose. First-line Maintenance Advanced Ovarian Cancer Most common adverse reactions (Grades 1-4) in ≥10% of all patients who received ZEJULA in PRIMA were thrombocytopenia (66%), anemia (64%), nausea (57%), fatigue (51%), neutropenia (42%), constipation (40%), musculoskeletal pain (39%), leukopenia (28%), headache (26%), insomnia (25%), vomiting (22%), dyspnea (22%), decreased appetite (19%), dizziness (19%), cough (18%), hypertension (18%), AST/ALT elevation (14%), and acute kidney injury (12%). Common lab abnormalities (Grades 1-4) in ≥25% of all patients who received ZEJULA in PRIMA included: decreased hemoglobin (87%), decreased platelets (74%), decreased leukocytes (71%), increased glucose (66%), decreased neutrophils (66%), decreased lymphocytes (51%), increased alkaline phosphatase (46%), increased creatinine (40%), decreased magnesium (36%), increased AST (35%), and increased ALT (29%). Maintenance Recurrent Germline BRCA -mutated Ovarian Cancer Most common adverse reactions (Grades 1-4) in ≥10% of patients who received ZEJULA in NOVA g BRCA mut Cohort were nausea (77%), thrombocytopenia (71%), fatigue (61%), anemia (52%), vomiting (40%), constipation (38%), headache (35%), neutropenia (31%), decreased appetite (22%), hypertension (21%), insomnia (18%), dizziness (18%), dyspnea (17%), dyspepsia (17%), back pain (16%), cough (16%), nasopharyngitis (13%), dry mouth (13%), dysgeusia (13%), urinary tract infection (11%), rash (10%), and anxiety (10%). Common lab abnormalities (Grades 1-4) in ≥25% of patients who received ZEJULA in NOVA g BRCA mut Cohort included: decrease in hemoglobin (85%), decrease in platelet count (81%), decrease in white blood cell count (71%), decrease in absolute neutrophil count (56%), increase in AST (35%), and increase in ALT (25%). Please see the US Prescribing Information for ZEJULA tablets. GSK in oncology Oncology is an emerging therapeutic area for GSK where we are committed to maximizing patient survival with a current focus on hematologic malignancies, gynecologic cancers and other solid tumors through breakthroughs in immuno-oncology and tumor-cell targeting therapies. About GSK GSK is a global biopharma company with a purpose to unite science, technology, and talent to get ahead of disease together. Find out more at us.gsk.com. Cautionary statement regarding forward-looking statements GSK cautions investors that any forward-looking statements or projections made by GSK, including those made in this announcement, are subject to risks and uncertainties that may cause actual results to differ materially from those projected. Such factors include, but are not limited to, those described under Item 3.D “Risk factors” in the company's Annual Report on Form 20-F for 2023. Registered in England & Wales: No. 3888792 Registered Office: 980 Great West Road Brentford, Middlesex TW8 9GS References Faizan U, Muppidi V. Uterine Cancer. [Updated 2022 Sep 5]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available at: www.ncbi.nlm.nih.gov/books/NBK562313/ . Braun MM, et al. Am Fam Physician. 2016;93(6):468-474. International Research on Cancer. Global Cancer Observatory. Cancer Tomorrow. gco.iarc.fr/tomorrow/en/dataviz/ . Accessed 13 July 2022. CMP: CancerMPact® Patient Metrics Mar-2023, Cerner Enviza. Available at www.cancermpact.com . Accessed 29 Feb 2024. Laken H, Kehry M, Mcneeley P, et al. Identification and characterization of TSR-042, a novel anti-human PD-1 therapeutic antibody. European Journal of Cancer. 2016;69, S102. doi:10.1016/s0959-8049(16)32902-1.

Cullinan remains on track to report additional solid tumor dose escalation data for CLN-619 in the second quarter of 2024 and recently received FDA clearance for an IND to evaluate CLN-619 in relapsed/refractory multiple myeloma The company is exploring development of its CD19xCD3 T cell engager CLN-978 in autoimmune disorders Cash and investments of $468.3 million as of December 31, 2023 continues to provide runway into the second half of 2026 CAMBRIDGE, Mass., March 14, 2024 (GLOBE NEWSWIRE) -- Cullinan Oncology, Inc. (Nasdaq: CGEM; “Cullinan”), a biopharmaceutical company focused on developing modality-agnostic targeted oncology therapies, today reported on recent and upcoming business highlights and announced its financial results for the fourth quarter and full year ended December 31, 2023. The company also announced that Chief Financial Officer Jeff Trigilio will depart the company effective March 29. Following his departure, Jeff has agreed to support the company through a transition period. “With the remarkable progress we made in 2023, we are positioned for an exciting, data-rich 2024,” said Nadim Ahmed, Chief Executive Officer of Cullinan Oncology, “We are on track to present clinical data across multiple programs, starting first with our lead unpartnered program, CLN-619. We plan to present initial data assessing CLN-619 in combination with checkpoint inhibitor therapy, along with updated data from the monotherapy dose escalation module, at a major medical meeting in the second quarter. We are exploring development of CLN-978, our next generation CD19xCD3 T cell engager, for the treatment of autoimmune diseases, where we believe it has significant potential as a potent, off-the-shelf, patient-friendly alternative to CAR T cell therapy. We continue to advance a broad zipalertinib development program in collaboration with Taiho, and we are on track to complete enrollment in the pivotal Phase 2b portion of the REZILIENT1 study by the end of the year. Lastly, we thank Jeff Trigilio for playing an important role in transitioning the company from an early-stage private biotechnology company to a public company with a diversified and deep pipeline and we wish him the best in his future endeavors.” Portfolio Highlights CLN-619 (Anti-MICA/MICB monoclonal antibody): Solid tumors and hematological malignancies Enrollment continues in the ongoing Phase 1 study evaluating CLN-619 as both monotherapy and in combination with checkpoint inhibitor therapy for patients with advanced solid tumors. Accrual to the dose escalation phase of the combination module has been completed. Recruitment continues in the monotherapy disease specific expansion cohorts for patients with endometrial and cervical cancers. Cullinan also continues to evaluate potential additional disease specific expansion cohorts.Cullinan remains on track to report initial data from the combination dose escalation module as well as an update on the monotherapy dose escalation module at a medical conference in the second quarter of 2024.Cullinan also remains on track to report initial data from disease specific dose expansion cohorts in the first half of 2025.Cullinan recently received FDA clearance for an IND for CLN-619 in multiple myeloma. CLN-978 (CD19xCD3 T cell engager): B-NHL, autoimmune disorders In August 2023, Cullinan dosed the first patient in our Phase 1 clinical trial of CLN-978 in patients with relapsed/refractory B cell non-Hodgkin lymphoma. Based on emerging clinical data and case series from academic and industry groups supporting the efficacy of CD19 directed CAR T cell therapy in multiple autoimmune diseases and our belief that CLN-978 may address the limitations of CAR T cell therapy, Cullinan is exploring development of CLN-978 in autoimmune diseases.CLN-978 incorporates several design features to address the limitations of other approaches, specifically: 1) an albumin binding, half-life extending domain that allows for weekly dosing; 2) high-affinity binding to CD19, enabling elimination of B cells with very low CD19 expression; and 3) subcutaneous administration, which can potentially reduce cytokine release and allow for better tolerability and convenience.Cullinan’s non-human primate data show that subcutaneous administration of CLN-978 achieved profound B cell depletion in the periphery and in tissues such as lymph nodes and spleen. Moreover, subcutaneous administration of CLN-978 in non-human primates was better tolerated and led to markedly decreased cytokine induction compared to intravenous administration. Finally, in vitro studies showed CLN-978 could eliminate B cells expressing extremely low levels of CD19. Zipalertinib (EGFR ex20ins inhibitor), collaboration with Taiho Oncology: EGFR ex20ins NSCLC Cullinan expects to complete enrollment in the pivotal Phase 2b portion of the REZILIENT1 study in patients with EGFR ex20ins NSCLC who have progressed after prior systemic therapy, with or without exon 20 targeted therapy, by year-end 2024. CLN-049 (FLT3xCD3 T cell-engaging bispecific antibody): AML and MDS Cullinan expects to provide a clinical data update from the ongoing Phase 1 multi-ascending dose study in r/r AML and MDS patients in the second half of 2024. CLN-418 (B7H4x4-1BB bispecific immune activator): Solid tumors Cullinan expects to provide a clinical data update from the ongoing Phase 1 dose escalation study in patients with advanced solid tumors in the second half of 2024. CLN-617 (IL-2 and IL-12 cytokine fusion protein): Solid tumors Enrollment continues in the ongoing Phase 1 study in patients with advanced solid tumors. Fourth Quarter 2023 Financial Results Cash Position: Cash, cash equivalents, investments, and interest receivable were $468.3 million as of December 31, 2023. Cullinan expects its cash resources to provide runway into the second half of 2026 based on its current operating plan.R&D Expenses: Research and development (R&D) expenses were $34.8 million for the fourth quarter of 2023, compared to $33.8 million for the third quarter of 2023. R&D expenses for the fourth and third quarters of 2023 included $2.7 million and $3.2 million of equity-based compensation expenses, respectively. The increase in R&D expenses was primarily related to increases in clinical costs, partially offset by decreases in CMC costs.G&A Expenses: General and administrative (G&A) expenses were $10.6 million for the fourth quarter of 2023, compared to $11.0 million for the third quarter of 2023. G&A expenses in the fourth and third quarters of 2023 included $4.9 million and $4.5 million of equity-based compensation expenses, respectively. The decrease in G&A expenses was primarily driven by decreases in legal and professional fees.Net Loss: Net loss (before items attributable to noncontrolling interest) for the fourth quarter of 2023 was $25.6 million, compared with net loss of $39.2 million for the third quarter of 2023. Net losses included the items described above, partially offset by interest income of $5.9 million in each of the fourth and third quarter of 2023 and a $14.1 million income tax benefit related to a 2022 return-to-provision adjustment and 2023 federal R&D tax credits that can be carried back to 2022 that were recorded in the fourth quarter of 2023. Full Year 2023 Financial Results R&D Expenses: R&D expenses were $148.2 million for 2023, compared to $91.9 million for 2022. R&D expenses for 2023 and 2022 included $12.2 million and $11.0 million of equity-based compensation expenses, respectively. The increase in R&D expenses for 2023 compared to 2022 was primarily due to a one-time upfront payment related to in-licensing CLN-418 in 2023, higher personnel costs due to increased headcount and expansion of operations to support our research and development activities, and higher equity-compensation costs, partially offset by decreased of lower preclinical costs.G&A Expenses: G&A expenses were $42.5 million for 2023, compared to $40.2 million for 2022. G&A expenses for 2023 and 2022 included $18.3 million and $16.9 million of equity-based compensation expenses, respectively. The increase in G&A expenses was primarily due to an increase in personnel costs, higher equity-based compensation costs, and higher occupancy and other costs to support our expanded operations, partially offset by one-time costs related to the sale of Cullinan Pearl in 2022 that did not recur in 2023, and lower legal and other professional service fees.Net Loss: Net loss (before items attributable to noncontrolling interest) for 2023 was $155.1 million, compared with net income of $109.2 million for 2022. Net losses in 2023 and net income in 2022 included the items described above, partially offset by interest income of $21.6 million and $6.6 million for 2023 and 2022, respectively, and a $14.1 million income tax benefit related to a 2022 return-to-provision adjustment and 2023 federal R&D tax credits that can be carried back to 2022 that were recorded in 2023.Shares Outstanding: As of March 1, 2024, Cullinan had 43,065,645 shares of common stock outstanding plus 647,500 shares of non-voting preferred stock outstanding, each of which is convertible into 10 shares of common stock. About Cullinan Oncology Cullinan Oncology, Inc. (Nasdaq: CGEM) is a biopharmaceutical company dedicated to creating new standards of care for patients with cancer. We innovate without borders to find the most promising clinic-ready cancer therapies, whether from our own discovery efforts or through exceptional engagement with our academic and industry partners. Anchored in a deep understanding of immuno-oncology and translational cancer medicine, we leverage our scientific excellence in small molecules and biologics to create differentiated ideas, identify unique targets, and select the optimal modality to develop transformative therapeutics across cancer indications. Powered by our novel research model, we push conventional boundaries from candidate selection to cancer therapeutic, applying rigorous early experimentation to fast-track only the most promising assets to the clinic and ultimately commercialization. As a result, our diversified pipeline is strategically built with assets that activate the immune system or inhibit key oncogenic drivers across a wide range of modalities, each with the potential to be the best or first in their class. Our people possess deep scientific expertise, seek innovation openly, and exercise creativity and urgency to deliver on our promise to bring new therapeutic solutions to patients with cancer. Learn more about our Company at www.cullinanoncology.com, and follow us on LinkedIn and Twitter. Forward-Looking Statements This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, express or implied statements regarding Cullinan’s beliefs and expectations regarding our preclinical and clinical development plans and timelines, clinical trial designs, clinical and therapeutic potential, and strategy of our product candidates; our ability to evaluate strategic opportunities to accelerate development timelines; our ability to optimize the impact of our collaborations and license agreements with external parties; our ability to continue our growth; our expectations regarding our cash runway and use of capital; and our plans regarding future data presentations. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “hope,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “target,” “should,” “would,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Any forward-looking statements in this press release are based on management's current expectations and beliefs of future events and are subject to known and unknown risks and uncertainties that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. These risks include, but are not limited to, the following: uncertainty regarding the timing and results of regulatory submissions; success of our clinical trials and preclinical studies; risks related to our ability to protect and maintain our intellectual property position; risks related to manufacturing, supply, and distribution of our product candidates; the risk that any one or more of our product candidates, including those that are co-developed, will not be successfully developed and commercialized; the risk that the results of preclinical studies or clinical studies will not be predictive of future results in connection with future studies; and success of any collaboration, partnership, license or similar agreements. These and other important risks and uncertainties discussed in our filings with the Securities and Exchange Commission, including under the caption “Risk Factors” in our most recent Annual Report on Form 10-K and subsequent filings with the SEC, could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. While we may elect to update such forward-looking statements at some point in the future, we disclaim any obligation to do so, even if subsequent events cause our views to change, except to the extent required by law. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this press release. Moreover, except as required by law, neither Cullinan nor any other person assumes responsibility for the accuracy and completeness of the forward-looking statements included in this press release. Any forward-looking statement included in this press release speaks only as of the date on which it was made. Cullinan Oncology, Inc. Condensed Consolidated Balance Sheets (unaudited) (in thousands) December 31, 2023 December 31, 2022 Cash, cash equivalents, investments, and interest receivable $468,264 $550,118 Total assets $484,182 $561,117 Total current liabilities $28,137 $22,498 Total liabilities $30,287 $26,088 Total stockholders’ equity $453,895 $535,029 Total liabilities and stockholders’ equity $484,182 $561,117 Cullinan Oncology, Inc.Consolidated Statements of Operations(unaudited)(in thousands, except per share amounts) Three Months Ended Twelve Months Ended December 31, 2023 September 30, 2023 December 31, 2023 December 31, 2022 Operating expenses: Research and development $34,848 $33,821 $148,156 $91,948 General and administrative 10,637 10,982 42,493 40,189 Total operating expenses 45,485 44,803 190,649 132,137 Impairment of long-lived assets — (440) (440) - Gain on sale of Cullinan Pearl — — — 276,785 Income (loss) from operations (45,485) (45,243) (191,089) 144,648 Other income (expense): Interest income 5,917 5,880 21,627 6,611 Other income (expense), net (117) 180 239 57 Net income (loss) before income taxes (39,685) (39,183) (169,223) 151,316 Income tax expense (benefit) (14,122) — (14,122) 42,121 Net income (loss) (25,563) (39,183) (155,101) 109,195 Net loss attributable to noncontrolling interests (1,760) — (1,939) (2,019)Net income (loss) attributable to common stockholders of Cullinan $(23,803) $(39,183) $(153,162) $111,214 Net income (loss) per share attributable to common stockholders of Cullinan: Basic $(0.54) $(0.91) $(3.69) $2.46 Diluted $(0.54) $(0.91) $(3.69) $2.38 Weighted-average shares used in computing net income (loss) per share attributable to common stockholders of Cullinan: Basic 42,794 42,734 41,550 45,164 Diluted 42,794 42,734 41,550 46,640 Contacts: InvestorsChad Messer+1 203.464.8900cmesser@cullinanoncology.com Media  Rose Weldon +1 215.801.7644 rweldon@cullinanoncology.com