Cutaneous Toxicities With Amivantamab for Non-Small Cell Lung Cancer: A Practical Guide and Best Practices

Background: Amivantamab is an epidermal growth factor receptor (EGFR) and MET bispecific antibody approved for certain patients with advanced non-small cell lung cancer with EGFR variant. Cutaneous toxicities are known on-target effects of EGFR inhibition.

Objectives: This article describes the occurrence and management of cutaneous toxicities in patients whose disease progressed on platinum chemotherapy treated with amivantamab.

Methods: Post hoc analysis evaluated incidence, severity, and time to first onset of rash and paronychia. Five nurses and advanced practice providers were interviewed.

Findings: Of 380 patients, 296 (78%) experienced treatment-related rash and/or paronychia. Paronychia (43%), rash (36%), and dermatitis acneiform (35%) were most frequent, with scalp rash reported by 17%. Treatment modifications because of rash and paronychia were infrequent. Nurses and advanced practice providers collaborate with physicians to manage cutaneous toxicities by administering comedications, modifying amivantamab dose, and educating patients.