Selective T-cell co-stimulation modulator

Abatacept (أباتاسيبت)

Abatacept is a biological medicine that reduces activation of inflammation-driving T cells. A rheumatology specialist uses it for selected rheumatoid arthritis, psoriatic arthritis or juvenile idiopathic arthritis, and it suppresses immunity and can increase serious infection.

This medicine is used under close medical supervision, usually by a specialist. Never start, stop or change it without your doctor.

What it is used for

  • Treating moderate or severe active rheumatoid arthritis with appropriate accompanying medicines
  • Treating active psoriatic arthritis in selected patients
  • Treating polyarticular juvenile idiopathic arthritis in suitable children or adolescents
  • Slowing joint damage and improving function when previous treatments are insufficient

How it is used

  • The hospital team gives the intravenous infusion, or a trained patient injects the syringe or pen under the skin according to the specialist's plan
  • Rotate subcutaneous sites and do not inject into red, painful, bruised or hardened skin
  • Do not shake the syringe or pen and do not use solution that is discoloured or contains particles not permitted by the leaflet
  • Never switch between infusion and injection or stop treatment yourself, and tell the team about infection before the next dose
  • Attend infection screening and requested blood, liver and rheumatology follow-up

Possible side effects

  • Nose, throat or sinus infection
  • Headache or nausea
  • Injection-site reaction or redness
  • Infusion reaction or allergy
  • Serious infection such as pneumonia or sepsis

Who should not use it

  • A severe or uncontrolled infection such as sepsis or an opportunistic infection
  • Allergy to abatacept or any product ingredient

Before and while using it

  • Fever, persistent cough, breathlessness, burning urine or an infected wound needs prompt contact with the team
  • Screening for tuberculosis and viral hepatitis is needed before treatment because latent infection can reactivate
  • It is not normally combined with another biological or similarly potent immunosuppressant because infection risk rises
  • New weakness or change in vision, speech or balance can indicate progressive multifocal leukoencephalopathy and needs urgent assessment
  • Breathing symptoms can worsen in people with chronic obstructive lung disease and require monitoring
  • Avoid live vaccines during treatment and for the leaflet-specified period afterwards; responses to other vaccines may be weaker

Medicine interactions

  • Tumour-necrosis-factor inhibitors, other biologics or potent immunosuppressants increase infection risk and are not normally combined with it
  • Live vaccines can cause infection, so every vaccination must be coordinated with the team
  • Maltose-containing formulations may interfere with selected glucose meters during infusion, depending on the exact product

Pregnancy and breastfeeding

  • Tell the rheumatology specialist if you are pregnant or planning pregnancy; information is limited and they decide need and the infant's vaccination plan
  • Breastfeeding is not usually recommended during treatment and for the leaflet-specified period after the final dose

How to store it

  • Keep syringes or pens refrigerated in the outer carton, protected from light, and never freeze or shake them; the hospital stores infusion vials

Get medical help straight away if

  • Your face, lips or tongue swell, or you find it hard to breathe.
  • You get a severe rash, blistering or peeling skin.
  • A side effect worries you or doesn’t go away: contact your doctor or pharmacist.

Questions about this medicine?

Talk to a doctor by video, or send your question by text.

Source: Standard international medicine references

This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.