MARIPOSA-2 is the first Phase 3 study to show statistically significant and clinically meaningful improvement in progression-free survival (PFS) in the post-osimertinib setting RARITAN, NJ, USA I September 6, 2023 I The Janssen Pharmaceutical Companies of Johnson & Johnson today announced positive topline results from the three-arm Phase 3 MARIPOSA-2 study evaluating RYBREVANT® (amivantamab-vmjw), a bispecific antibody targeting epidermal growth factor receptor (EGFR) and mesenchymal-epithelial transition (MET), given with and without lazertinib, an oral, third-generation EGFR tyrosine kinase inhibitor (TKI), combined with chemotherapy (carboplatin and pemetrexed) versus chemotherapy alone. MARIPOSA-2 enrolled patients with locally advanced or metastatic EGFR exon 19 deletions (ex19del) or L858R substitution NSCLC after disease progression on or after osimertinib. The study met its dual primary endpoint, demonstrating a statistically significant and clinically meaningful improvement in PFS versus chemotherapy alone in both experimental treatment arms. No new safety signals were found for the addition of RYBREVANT® to chemotherapy.1 Janssen plans to submit these results for presentation at upcoming scientific congresses, including details on secondary endpoints such as overall survival (OS), objective response, duration of response (DoR) and intracranial PFS. "MARIPOSA-2 provides the first Phase 3 study data of RYBREVANT-based regimens in the broader EGFR-mutated non-small cell lung cancer population," said Peter Lebowitz, M.D., Ph.D., Global Therapeutic Area Head, Oncology, Janssen Research & Development, LLC. "The study builds on the significant innovation of RYBREVANT, a first-in-class bispecific antibody targeting two major oncogenic driver pathways, with clinically meaningful results that may change the treatment paradigm." MARIPOSA-2 (NCT04988295) is a randomized, open-label Phase 3 study evaluating the efficacy and safety of two regimens of RYBREVANT® (with and without lazertinib) and chemotherapy. Patients with locally advanced or metastatic EGFR ex19del or L858R substitution NSCLC who had disease progression on or after osimertinib were randomized to treatment with RYBREVANT® plus chemotherapy, RYBREVANT® plus chemotherapy with lazertinib, or chemotherapy alone. The dual primary endpoint was used to compare the PFS (using RECIST v1.1 guidelines*) as assessed by blinded independent central review (BICR) for each experimental arm to chemotherapy alone. Secondary endpoints included objective response as assessed by BICR, OS, DoR, time to subsequent therapy, PFS after first subsequent therapy (PFS2) and intracranial PFS. All study participants underwent serial brain imaging to allow for the robust assessment of intracranial endpoints, and to assess the central nervous system (CNS) activity of RYBREVANT® with and without lazertinib. As brain metastases can lead to significant burden and poor outcomes for patients, this aspect of the study design provides critical information in an area of high unmet need. The study enrolled 657 patients with locally advanced or metastatic EGFR ex19del or L858R substitution NSCLC who had disease progression on or after osimertinib.1 RYBREVANT® (amivantamab-vmjw), a fully-human bispecific antibody targeting EGFR and MET with immune cell-directing activity, received accelerated approval by the U.S. Food and Drug Administration (FDA) in May 2021 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.2 This indication is approved under accelerated approval based on overall response rate and DoR. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trials. RYBREVANT® has also received approval from health authorities in Europe, as well as other markets around the world. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for Non-Small Cell Lung Cancer◊ prefer NGS-based strategies over PCR-based approaches for the detection of EGFR exon 20 insertion variants and include amivantamab-vmjw (RYBREVANT®) as a subsequent therapy option with a 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.3†^ In addition to the Phase 3 MARIPOSA-2 study, RYBREVANT® is being studied in multiple clinical trials in NSCLC, including: For more information, visit: https://www.RYBREVANT.com.
Lazertinib is an oral, third-generation, brain-penetrant EGFR TKI that targets both the T790M mutation and activating EGFR mutations while sparing wild type-EGFR. An analysis of the efficacy and safety of lazertinib from the Phase 3 study was published in The Journal of Clinical Oncology in 2023.14 In 2018, Janssen Biotech, Inc., entered into a license and collaboration agreement with Yuhan Corporation for the development of lazertinib. Worldwide, lung cancer is one of the most common cancers, with NSCLC making up 80 to 85 percent of all lung cancer cases.15,16 The main subtypes of NSCLC are adenocarcinoma, squamous cell carcinoma and large cell carcinoma.17 Among the most common driver mutations in NSCLC are alterations in EGFR, which is a receptor tyrosine kinase controlling cell growth and division.18 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.17,18,19,20,21,22,23 EGFR ex19del or EGFR L858R mutations are the most common EGFR mutations.24 The five-year survival rate for all people with advanced NSCLC and EGFR mutations treated with EGFR TKIs is less than 20 percent.25,26 Patients with EGFR ex19del or L858R mutations have a real-world five-year OS of 19 percent.27 Brain metastases are a common complication in a wide range of cancers, but they are particularly common among patients with EGFR-mutated lung cancer.28 Approximately 20 percent of newly diagnosed patients with EGFR-mutated advanced NSCLC have brain metastases at diagnosis and risk of developing new metastases rise over time.28,29,30 Targeted systemic treatments in patients with EGFR-mutated NSCLC have CNS penetrance but, currently, clinical trials of systemic treatments largely exclude patients with brain metastases that have not been irradiated or surgically removed and the need for more therapeutic options is desired.28,31 Infusion-Related Reactions
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. Dermatologic Adverse Reactions
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. 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 final dose of RYBREVANT®. 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%). Please read the full Prescribing Information for RYBREVANT®. *RECIST (version 1.1) refers to Response Evaluation Criteria in Solid Tumors, which is a standard way to measure how well solid tumors respond to treatment and is based on whether tumors shrink, stay the same or get bigger. ◊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 representations or warranties and explicitly disclaims the appropriateness or applicability of the NCCN Content to any specific patient's care or treatment.
†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. https://classic.clinicaltrials.gov/ct2/show/study/NCT04988295. Accessed July 2023.
8 ClinicalTrials.gov. A Study of Amivantamab Subcutaneous (SC) Administration for the Treatment of Advanced Solid Malignancies (PALOMA). Available at: https://clinicaltrials.gov/ct2/show/NCT04606381. Accessed May 2023. 13 ClinicalTrials.gov. Premedication to Reduce Amivantamab Associated Infusion Related Reactions (SKIPPirr). Available at: https://classic.clinicaltrials.gov/ct2/show/NCT05663866. Accessed July 2023. 15 The World Health Organization. Cancer. https://www-who-int.libproxy1.nus.edu.sg/news-room/fact-sheets/detail/cancer. Accessed July 2023.
16 American Cancer Society. What is Lung Cancer? https://www.cancer.org/content/cancer/en/cancer/lung-cancer/about/what-is.html. Accessed July 2023. 17 Oxnard JR, et al. Natural history and molecular characteristics of lung cancers harboring EGFR exon 20 insertions. J Thorac Oncol. 2013;8(2):179-84. doi: 10.1097/JTO.0b013e3182779d18. 18 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. 19 Riess JW, et al. Diverse EGFR exon 20 insertions and co-occurring molecular alterations identified by comprehensive genomic profiling of NSCLC. J Thorac Oncol. 2018;13(10):1560-1568. doi:10.1016/j.jtho.2018.06.019. 22 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. 24 American Lung Association. EGFR and Lung Cancer. https://www.lung.org/lung-health-diseases/lung-disease-lookup/lung-cancer/symptoms-diagnosis/biomarker-testing/egfr. Accessed July 2023. 25 Howlader N, et al. SEER Cancer Statistics Review, 1975-2016, National Cancer Institute. Bethesda, MD, https://seer.cancer.gov/csr/1975_2016/, based on November 2018 SEER data submission, posted to the SEER web site. 27 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. 29 Barnholtz-Sloan JS, et al. Incidence proportions of brain metastases in patients diagnosed (1973 to 2001) in the Metropolitan Detroit Cancer Surveillance System. J Clin Oncol. 2004;22(14):2865–72. https://doi-org.libproxy1.nus.edu.sg/10.1200/JCO.2004.12.149. 30 Schouten LJ, et al. Incidence of brain metastases in a cohort of patients with carcinoma of the breast, colon, kidney, and lung and melanoma. Cancer. 2002;94(10):2698–705. https://doi-org.libproxy1.nus.edu.sg/10.1002/cncr.10541. 31 Page S, et al. Systemic treatment of brain metastases in non-small cell lung cancer. Eur J Cancer. 2020;(132):187–198. https://doi-org.libproxy1.nus.edu.sg/10.1016/j.ejca.2020.03.006.