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.…
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