Rare nasal melanoma achieved complete response after switching to nivolumab-relatlimab when first-line immunotherapy failed.

A 70-year-old male with sinonasal mucosal melanoma progressed on nivolumab-ipilimumab (unresectable). After switching to nivolumab-relatlimab plus site-directed radiation, he achieved complete response after 8 cycles. Treatment interruption for suspected immune toxicity led to eventual progression.…

Share
Rare nasal melanoma achieved complete response after switching to nivolumab-relatlimab when first-line immunotherapy failed.

Rare nasal melanoma achieved complete response after switching to nivolumab-relatlimab when first-line immunotherapy failed.

A 70-year-old male with sinonasal mucosal melanoma progressed on nivolumab-ipilimumab (unresectable). After switching to nivolumab-relatlimab plus site-directed radiation, he achieved complete response after 8 cycles. Treatment interruption for suspected immune toxicity led to eventual progression. Case suggests nivolumab-relatlimab may have activity after standard combination immunotherapy failure in mucosal melanoma.

Key Findings

  • Sinonasal mucosal melanoma progressed on nivolumab-ipilimumab and became unresectable
  • Complete response achieved with nivolumab-relatlimab plus radiation after 8 cycles
  • Treatment interruption for immune toxicity led to eventual progression
  • Nivolumab-relatlimab (anti-PD-1 + anti-LAG-3) may be active in post-ipilimumab mucosal melanoma

Implications

Nivolumab-relatlimab is a potential option for mucosal melanoma after standard combination immunotherapy failure. Treatment continuity is critical.

Caveats

Single case report; abstract-only. Very limited generalizability. Broader evidence base needed before recommendations.

Source: Cancer reports (Hoboken, N.J.) — 2026-04-01

Read more