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Cemiplimab

Monoclonal Antibody · Antineoplastic

Monoclonal AntibodyAntineoplastic
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
Manufacturer advises females of childbearing potential should use effective contraception during treatment and for at least 4 months after the last dose.
FDA category + note

Mechanism

Cemiplimab is a human immunoglobulin G4 monoclonal antibody. It functions by binding to the programmed death-1 (PD-1) receptor. This binding potentiates an immune response against tumour cells.

Indications

Cutaneous squamous cell carcinoma (specialist use only)cancer therapyadvanced cutaneous squamousbasal cell carcinomafirst-line treatment of patients with locally advanced or metastatic NSCLC with high PD-L1BCC patients who progress after targeted therapyadvanced squamous cell carcinomaneoadjuvant therapy in stage II, III and IV squamous cell carcinoma

Dosing

Adult
350 mg every 3 weeks, for dose interruption or discontinuation of treatment due to side-effects or infusion-related reactions consult product literature

Side effects

Common
Arthralgiaarthritisastheniacolitisdiarrhoeahepatic disordershyperthyroidismhypothyroidisminfusion related reactionmyalgiapainpneumonitisskin reactionsstomatitis
Serious
  • Adrenal insufficiency
  • cardiac inflammation
  • diabetic ketoacidosis
  • encephalitis
  • hypophysitis
  • immune thrombocytopenic purpura
  • keratitis
  • meningitis
  • muscle weakness
  • myasthenia gravis
  • nephritis
  • nerve disorders
  • nervous system disorders
  • Sjögren syndrome
  • thyroiditis
  • type 1 diabetes mellitus
  • vasculitis
  • Encephalitis non-infective
  • severe cutaneous adverse reactions (SCARs)
  • immune-related inflammation

Pregnancy & lactation

Pregnancy

Manufacturer advises females of childbearing potential should use effective contraception during treatment and for at least 4 months after the last dose.

Related guidelines

Other Monoclonal Antibody drugs

Ask House about Cemiplimab

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Sources: Goodman & Gilman 14e, Harrison 22e, Katzung, BNF·Verified: 2026-05-10 · House clinical team