SUMMARY

• RYBREVANT (amivantamab-vmjw) is a low fucose, fully human immunoglobulin G1 (IgG1)-based bispecific antibody with immune cell-directing activity that targets epidermal growth factor receptor (EGFR) mutations and mesenchymal-epithelial transition (MET) mutations and amplifications in non-small cell lung cancer (NSCLC).¹
• LAZCLUZE (lazertinib) is a third-generation EGFR tyrosine kinase inhibitor (TKI).²
• MARIPOSA (NCT04487080) is an ongoing, phase 3, randomized study evaluating the efficacy and safety of RYBREVANT and lazertinib combination therapy (open-label, n=429) vs osimertinib (double-blind, n=429) vs lazertinib (double-blind, n=216) as first-line treatment in patients with EGFR-mutated (Exon 19 deletion [Exon19del] or Exon 21 L858R substitution) locally advanced or metastatic NSCLC.^2-4
  • Among patients treated with RYBREVANT plus lazertinib, grade ≥3 anemia, thrombocytopenia, and leukopenia were reported in 16 (4%), 1 (<1%), and 1 (<1%) patients, respectively (Table: MARIPOSA: Incidence of Hematologic Toxicities).⁴
• PAPILLON (NCT04538664) is an ongoing, phase 3, randomized, open-label study designed to compare the efficacy and safety of RYBREVANT plus chemotherapy (carboplatin and pemetrexed; n=153) vs chemotherapy alone (carboplatin and pemetrexed; n=155) in patients with untreated locally advanced or metastatic NSCLC and EGFR Exon 20 insertion (Exon20ins) mutations.^5,6
  • Among patients treated with RYBREVANT plus chemotherapy, grade ≥3 neutropenia, anemia, leukopenia, and thrombocytopenia were reported in 50 (33%), 16 (11%), 17 (11%), and 15 (10%) patients, respectively (Table: PAPILLON: Incidence of Hematologic Toxicities).⁶
• MARIPOSA-2 (NCT04988295) is an ongoing, phase 3, randomized, open-label study designed to assess the efficacy and safety of RYBREVANT-lazertinib-chemotherapy (pemetrexed and carboplatin; n=263) and RYBREVANT-chemotherapy (pemetrexed and carboplatin; n=131) vs chemotherapy alone (pemetrexed and carboplatin; n=263) in patients with EGFR-mutated (Exon19del or Exon 21 L858R substitution) locally advanced or metastatic NSCLC on or after osimertinib monotherapy.^7,8
  • Grade ≥3 treatment-emergent neutropenia, thrombocytopenia, anemia, and leukopenia were reported in 144 (55%), 96 (37%), 48 (18%), and 71 (27%) patients treated with RYBREVANT-lazertinib-chemotherapy and in 59 (45%), 19 (15%), 15 (12%), and 26 (20%) patients treated with RYBREVANT-chemotherapy, respectively (Table: MARIPOSA-2: Incidence of Treatment-Emergent Hematologic Toxicities).⁸
• In the PAPILLON and MARIPOSA-2 studies, the use of prophylactic colony-stimulating factors could be considered after randomization or after the first dose, respectively, as per local guidelines or prescribing information.^9,10
• Please refer to RYBREVANT product labeling for complete safety information, including dose modification guidelines for adverse reactions.
• Please refer to product labeling for carboplatin and/or pemetrexed for complete prescribing information.

PRODUCT LABELING

• RYBREVANT (amivantamab-vmjw) [Prescribing Information]. Horsham, PA: Janssen Biotech, Inc.; https://www.janssenlabels.com/package-insert/product-monograph/prescribing-information/RYBREVANT-pi.pdf.
• LAZCLUZE (lazertinib) [Prescribing Information]. Horsham, PA: Janssen Biotech, Inc.; https://www.janssenlabels.com/package-insert/product-monograph/prescribing-information/LAZCLUZE-pi.pdf.

CLINICAL DATA

MARIPOSA Study

Study Design/Methods

• Phase 3, ongoing, randomized study designed to assess the efficacy and safety of RYBREVANT plus lazertinib (open-label, n=429) vs osimertinib (double-blind, n=429) vs lazertinib (double-blind, n=216) as first-line treatment in 1074 patients with EGFRmutated (Exon19del or L858R) locally advanced or metastatic NSCLC.^2-4
  • RYBREVANT 1050 mg intravenous (IV; 1400 mg IV for body weight ≥80 kg) was administered every week for the first 4 weeks, with the initial dose as a split infusion on cycle 1 day 1 (C1D1) and D2, followed by every 2 weeks thereafter.
  • Lazertinib 240 mg was administered orally (PO) once daily.
  • Osimertinib 80 mg PO was administered once daily.

Results

• The median duration of treatment was 18.5 months for RYBREVANT plus lazertinib and 18 months for osimertinib.^2-4
• The incidence of hematologic toxicities reported in the MARIPOSA study is shown in the table below.

PAPILLON Study

Study Design/Methods

• Phase 3, ongoing, randomized, open-label study designed to compare the efficacy and safety of RYBREVANT plus chemotherapy (carboplatin and pemetrexed; n=153) vs chemotherapy alone (carboplatin and pemetrexed; n=155) in patients with untreated locally advanced or metastatic NSCLC and EGFR Exon20ins mutations.^5,6
  • RYBREVANT 1400 mg IV (1750 mg IV for body weight ≥80 kg) was administered every week for the first 4 weeks, with the initial dose as a split infusion on C1D1 and D2, followed by RYBREVANT 1750 mg IV (2100 mg IV for body weight ≥80 kg) every 3 weeks starting at week 7 (C3D1) until disease progression.
  • Pemetrexed 500 mg/m² IVwas administered every 3 weeks until disease progression.⁹
  • Carboplatin area under the curve (AUC) 5 IV was administered every 3 weeks for up to 4 cycles.

Results

• The median duration of treatment was 9.7 months (range, 0.1-26.9) for RYBREVANT plus chemotherapy and 6.7 months (range, 0-25.3) for chemotherapy alone.^5,6
• The incidence of hematologic toxicities reported in the PAPILLON study is shown in the table below.

MARIPOSA-2 Study

Study Design/Methods

• Phase 3, ongoing, randomized, open-label study designed to assess the efficacy and safety of RYBREVANT-lazertinib-chemotherapy (n=263) and RYBREVANT-chemotherapy (n=131) vs chemotherapy alone (n=263) in 657 patients with EGFR-mutated locally advanced or metastatic NSCLC on or after osimertinib monotherapy (as the most recent line of therapy).^7,8
  • RYBREVANT 1400 mg IV (1750 mg IV for body weight ≥80 kg) was administered every week for the first 4 weeks, with the initial dose as a split infusion on C1D1 and D2, followed by 1750 mg IV (2100 mg IV for body weight ≥80 kg) every 3 weeks starting at week 7 (C3D1) until disease progression.
  • Lazertinib 240 mg PO was administered once daily.
  • Chemotherapy was administered every 3 weeks at the beginning of each cycle, with carboplatin at AUC 5 IV for the first 4 cycles, and pemetrexed at 500 mg/m² IV until disease progression.
• In the RYBREVANT-lazertinib-chemotherapy arm, patients randomized before November 7, 2022 received lazertinib on C1D1. Due to an increase in hematologic and gastrointestinal toxicities in the arm, the regimen was modified to start lazertinib after carboplatin completion.⁸
  • An open-label, randomized, extension cohort will evaluate the efficacy and safety of the modified RYBREVANT-lazertinib-chemotherapy regimen vs RYBREVANT-chemotherapy.

Results

• At a median follow-up of 8.7 months, the median duration of treatment was 5.8 months for RYBREVANT-lazertinib-chemotherapy, 6.3 months for RYBREVANT-chemotherapy, and 3.7 months for chemotherapy alone.^7,8
• The incidence of hematologic toxicities reported in the MARIPOSA-2 study is shown in the table below.

Literature Search

A literature search of MEDLINE^®, Embase^®, BIOSIS Previews^®, and DerwentDrug File (and/or other resources, including internal/external databases) was conducted on 01 July 2024.