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Anti-IL-1β Monoclonal Antibody Pregnancy: Limited data in pregnant women; the risk to the foetus/mother is unknown, so women who are pregnant or wish to become pregnant should only be treated after a thorough benefit-risk evaluation. Women should use effective contraception during treatment and for up to 3 months after the last dose. Canakinumab crosses the placenta - live vaccines are not recommended in newborn infants exposed in utero for 16 weeks following the mother's last dose before childbirth.

Canakinumab

Brand names: Ilaris

Canakinumab is a fully human monoclonal antibody against interleukin-1 beta, used in autoinflammatory conditions such as periodic fever syndromes, Still's disease and gouty arthritis.

Auto-extracted from the source labelling — not yet independently clinician-verified. These values were distilled from the UK SPC (or the US label where noted) but have not had a clinician sign-off. Confirm against the current SmPC before prescribing.

Adult dose

Dose: CAPS (adults, adolescents and children aged 4 years and over) with body weight over 40 kg: 150 mg as a single dose every 8 weeks. TRAPS, HIDS/MKD and FMF with body weight over 40 kg: 150 mg as a single dose every 4 weeks. Still's disease (systemic juvenile idiopathic arthritis and adult-onset Still's disease) with body weight 7.5 kg or above: 4 mg/kg (up to a maximum of 300 mg) every 4 weeks. Gouty arthritis (adults): 150 mg as a single dose during an attack.
Route: Subcutaneous injection
Frequency: CAPS every 8 weeks; TRAPS, HIDS/MKD, FMF and Still's disease every 4 weeks; gouty arthritis as a single on-demand dose per attack with an interval of at least 12 weeks before any repeat dose
Max: Still's disease: 4 mg/kg up to a maximum of 300 mg per dose. Clinical experience with dosing at intervals of less than 4 weeks or at doses above 600 mg or 8 mg/kg is limited.
CAPS up-titration: for patients with a starting dose of 150 mg or 2 mg/kg, if a satisfactory clinical response (resolution of rash and other generalised inflammatory symptoms) has not been achieved 7 days after treatment start, a second dose of 150 mg or 2 mg/kg can be considered; if a full treatment response is subsequently achieved, the intensified regimen of 300 mg or 4 mg/kg every 8 weeks needs to be maintained; if a satisfactory response has still not been achieved 7 days after this increased dose, a third dose of 300 mg or 4 mg/kg can be considered and, if a full response follows, maintaining 600 mg or 8 mg/kg every 8 weeks is to be considered on individual clinical judgement. For patients starting on 4 mg/kg, a second 4 mg/kg dose can be considered at 7 days and maintaining 8 mg/kg every 8 weeks considered thereafter. TRAPS, HIDS/MKD and FMF up-titration: if a satisfactory clinical response has not been achieved 7 days after treatment start, a second dose of 150 mg or 2 mg/kg can be considered; if a full response follows, maintain the intensified regimen of 300 mg (or 4 mg/kg for patients weighing 40 kg or less) every 4 weeks. In patients without clinical improvement the treating physician should reconsider continued treatment. Gouty arthritis: management of hyperuricaemia with appropriate urate-lowering therapy needs to be instituted or optimised; canakinumab is used as on-demand therapy and should be given as soon as possible after attack onset; patients who do not respond to initial treatment should not be re-treated; those who respond and require re-treatment need an interval of at least 12 weeks. Missed doses (CAPS, TRAPS, HIDS/MKD, FMF, Still's disease): administer as soon as possible without waiting for the next scheduled dose, then resume the recommended intervals. Elderly: no dose adjustment required. Hepatic impairment: not studied, no posology recommendation can be made. Administration: subcutaneous use into the upper thigh, abdomen, upper arm or buttocks, rotating sites; avoid broken, bruised or rashy skin and scar tissue; the pen must not be shaken; each pre-filled pen is for a single dose in a single patient. After proper training, adult and adolescent patients aged 12 years or older weighing above 40 kg, or their caregivers, may self-inject if the physician determines it appropriate. All prescribers must be familiar with the SmPC and provide the Patient Card. SPC section 4.5 was not retrieved in this bundle - verify interactions against the full SPC.

Paediatric dose

Route: Subcutaneous injection
Frequency: CAPS: every 8 weeks. TRAPS, HIDS/MKD, FMF and Still's disease (SJIA): every 4 weeks.
Max: Still's disease: maximum 300 mg per dose. Clinical experience at doses above 600 mg or 8 mg/kg, or at intervals of less than 4 weeks, is limited.
The source states weight-banded per-kg doses rather than a single per-kg figure, so no single dosePerKg value can be given. CAPS, children aged 4 years and over: 2 mg/kg for body weight 15 kg or above and 40 kg or below; 4 mg/kg for body weight 7.5 kg or above and below 15 kg; 150 mg for body weight over 40 kg. CAPS, children 2 to under 4 years: 4 mg/kg for body weight 7.5 kg or above. TRAPS, HIDS/MKD and FMF, children aged 2 years and over: 2 mg/kg for body weight 7.5 kg or above and 40 kg or below; 150 mg for body weight over 40 kg. Still's disease (SJIA), body weight 7.5 kg or above: 4 mg/kg up to a maximum of 300 mg. Safety and efficacy in patients under 2 years of age have not been established for CAPS, TRAPS, HIDS/MKD, FMF or SJIA. There is no relevant paediatric use in gouty arthritis. Verify against a children's formulary.

Dose adjustments

Renal

No dose adjustment is needed in patients with renal impairment, although clinical experience in such patients is limited.

Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.

Contraindications

  • Hypersensitivity to the active substance or to any of the excipients
  • Active, severe infections

Side effects

  • Respiratory tract infections including pneumonia, bronchitis, influenza, viral infection, sinusitis, rhinitis, pharyngitis, tonsillitis, nasopharyngitis and upper respiratory tract infection (very common)
  • Injection site reaction (very common)
  • Ear infection, cellulitis, gastroenteritis and urinary tract infection (very common)
  • Upper abdominal pain and arthralgia (very common, in SJIA); musculoskeletal pain and back pain (common)
  • Decreased creatinine renal clearance, proteinuria and leukopenia (very common in SJIA); neutropenia (common); decreased platelet count (uncommon)
  • Dizziness/vertigo and fatigue/asthenia (common); vulvovaginal candidiasis (common)

Interactions

  • Tumour necrosis factor (TNF) inhibitors: concomitant use with canakinumab is not recommended because this may increase the risk of serious infections (SPC section 4.4, cross-referring to section 4.5; section 4.5 itself was not retrieved in this bundle)

Clinical monograph

How it works

It binds and neutralises interleukin-1 beta, blocking its interaction with IL-1 receptors and dampening the downstream inflammatory cascade.

Prescribing in practice

  • It increases the risk of serious infection; screen for and exclude active infection (including latent tuberculosis) before and during treatment, and withhold if serious infection develops.
  • Live vaccines should be avoided during treatment, and vaccinations brought up to date beforehand where possible.
  • Use with caution alongside other biologic or immunosuppressive agents owing to additive infection risk.

Monitoring

Monitor for signs of infection and check neutrophil count periodically as directed by the SPC.

Counselling the patient

  • Report any fever, persistent cough or other signs of infection promptly.
  • Tell any healthcare professional you are receiving this treatment before having vaccinations.

Evidence & guidelines

NICE has appraised canakinumab for specific periodic fever syndromes and its use is supported by randomised controlled trial data in IL-1-mediated disease.

Reference: NICE TA404; CANTOS trial; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.