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HIF-2α inhibitor (specialist)

Belzutifan

Brand names: Welireg

Adult dose

Dose: 120mg PO OD
Route: Oral
Frequency: OD

Clinical pearls

  • VHL disease-associated tumours; advanced renal cell carcinoma
  • NICE TA evaluation; ESMO RCC
  • Specialist oncology — anaemia management essential

Contraindications

  • Pregnancy
  • Severe hepatic impairment
  • Hypersensitivity

Side effects

  • Anaemia (very common, often severe)
  • Hypoxia
  • Fatigue
  • Nausea
  • Headache

Interactions

  • Strong CYP3A4 inhibitors/inducers
  • UGT2B17 / CYP2C19 substrates

Monitoring

  • Hb (baseline weekly initially)
  • SpO₂
  • LFTs
  • Disease response

Reference: BNF; NICE TA evaluation; ESMO RCC; SmPC; https://bnf.nice.org.uk/drugs/belzutifan-specialist-drug/. Verify against your local formulary and the latest BNF before prescribing.

Related

Curated clinical cross-links plus same-class fallbacks.