J&J’s Rybrevant/Lazcluze MARIPOSA Update Shows Greater Gains Over Tagrisso

Subcutaneous Rybrevant Data Reinforce Safety, Convenience

Survival and other benefits with J&J’s EGFR/MET inhibitor Rybrevant plus EGFR inhibitor Lazcluze relative to AstraZeneca’s Tagrisso in first-line EGFR-mutant NSCLC continued to improve at 31.1 months.

3d rendered, medically accurate illustration of lung cancer. showing presence of cancerous tumor inside the lungs
Rybrevant plus Lazcluze efficacy continued to separate from Tagrisso monotherapy • Source: Shutterstock

Johnson & Johnson has evidence that the benefits of dual treatment with the firm’s EGFR/MET inhibitor Rybrevant (amivantamab) and EGFR inhibitor Lazcluze (lazertinib) improve over time from updated results from the Phase III MARIPOSA clinical trial of the two-drug combination versus AstraZeneca PLC’s standard-of-care EGFR inhibitor Tagrisso (osimertinib) in first-line non-small cell lung cancer (NSCLC) with EGFR mutations.

Key Takeaways
  • Updated results from the Phase III MARIPOSA study of Johnson & Johnson’s newly approved Rybrevant/Lazcluze combination regimen for first-line treatment of EGFR-mutant NSCLC showed that benefits relative to Tagrisso monotherapy continued to improve over time.

  • The company has worked through safety and tolerability concerns with VTE and infusion-related reaction prophylaxis and a subcutaneous version of Rybrevant pending at the US FDA

The US Food and Drug Administration approved Rybrevant plus Lazcluze for first-line treatment of NSCLC with EGFR exon 19 deletions or exon 21 L858R substitution mutations on 20 August. The latest MARIPOSA results, from a late-breaking oral presentation on 8 September at the International Association for the Study of Lung Cancer’s World Conference on Lung Cancer (WCLC) in San Diego, revealed that overall survival (OS) was not estimable yet for patients treated with the J&J drug combination, but it was estimated at 37.3 months for Tagrisso (HR=0.77, p=0.019)

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