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Anti-Integrin Monoclonal Antibody (Gut-Selective) Pregnancy: Limited data in pregnant women; as a precautionary measure it is preferable to avoid use during pregnancy unless the benefits clearly outweigh any potential risk to mother and foetus. Women of childbearing potential should use adequate contraception during treatment and for at least 18 weeks after the last dose. Vedolizumab has been detected in human milk at approximately 0.4% to 2.2% of maternal serum concentration; use in lactating women should weigh the benefit of therapy to the mother against potential risks to the infant.

Vedolizumab

Brand names: Entyvio

Used in: Inflammatory Bowel Disease

Vedolizumab is a gut-selective monoclonal antibody used for moderate-to-severe ulcerative colitis and Crohn's disease.

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: 108 mg by subcutaneous injection, as maintenance treatment following at least 2 intravenous infusions (ulcerative colitis and Crohn's disease)
Route: Subcutaneous injection only (this presentation — Entyvio 108 mg solution for injection in pre-filled pen)
Frequency: Once every 2 weeks. The first subcutaneous dose is given in place of the next scheduled intravenous dose, and every 2 weeks thereafter.
SOURCE SCOPE — the eMC record fetched is the Entyvio 108 mg pre-filled pen SmPC, which covers ONLY the subcutaneous maintenance regimen and cross-refers the intravenous regimen to the separate 'Entyvio 300 mg powder for concentrate for solution for infusion' SmPC, which was NOT fetched. The UK intravenous induction and maintenance doses must be taken from that 300 mg SmPC. For reference only (US ENTYVIO prescribing information via openFDA — NOT UK labelling, verify against the UK 300 mg SmPC): 300 mg by intravenous infusion over approximately 30 minutes at Week 0 and Week 2; from Week 6 either continue 300 mg intravenously over approximately 30 minutes every eight weeks, or switch to 108 mg subcutaneously once every 2 weeks; discontinue in patients showing no evidence of therapeutic benefit by Week 14. OTHER SPC POINTS: treatment should be initiated and supervised by specialist healthcare professionals experienced in the diagnosis and treatment of ulcerative colitis or Crohn's disease. Missed subcutaneous dose — inject the next dose as soon as possible and then every 2 weeks thereafter (treatment interruption up to 46 weeks occurred in trials, with efficacy regained on re-initiation). Insufficient data to determine whether patients whose response decreases on subcutaneous maintenance would benefit from increased dosing frequency, and no data on transition from subcutaneous back to intravenous during maintenance. In responders, corticosteroids may be reduced and/or discontinued in accordance with standard of care. Elderly: no dose adjustment required. PAEDIATRIC: safety and efficacy in children aged 0 to 17 years have not been established and no data are available. Administration: after proper training in subcutaneous injection technique, a patient or caregiver may inject if the physician determines it appropriate.

Dose adjustments

Renal

Vedolizumab has not been studied in patients with renal or hepatic impairment; no dose recommendations can be made.

Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — 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 such as tuberculosis, sepsis, cytomegalovirus, listeriosis
  • Opportunistic infections such as progressive multifocal leukoencephalopathy (PML)

Side effects

  • Nasopharyngitis (very common)
  • Headache (very common)
  • Arthralgia (very common)
  • Nausea, pyrexia, fatigue and cough (common)
  • Injection site reactions with subcutaneous administration — pain, oedema, erythema or pruritus, reported in 5.1% of patients (common)
  • Anaphylactic reaction and anaphylactic shock (very rare)

Interactions

  • Section 4.5 of the UK SPC was not captured in the fetched bundle — the following are from the US ENTYVIO prescribing information (section 7) and should be verified against the UK SPC
  • Natalizumab products — avoid concomitant use because of the potential for increased risk of PML and other infections (US label)
  • TNF blockers — avoid concomitant use because of the potential for increased risk of infections (US label)
  • CYP450 substrates — vedolizumab may normalise CYP450 enzyme formation by modulating chronic inflammation; on starting or stopping vedolizumab, monitor drug concentrations or other therapeutic parameters and adjust the substrate dose as needed (US label)

Clinical monograph

How it works

It binds the alpha-4 beta-7 integrin on circulating lymphocytes, blocking their adhesion to MAdCAM-1 and reducing trafficking of inflammatory cells specifically into gut tissue.

Prescribing in practice

  • Screen for tuberculosis and active infection before starting, and remain alert to infection during treatment despite its gut-selective action.
  • Treatment usually begins with an intravenous induction schedule, with maintenance available intravenously or subcutaneously.
  • Live vaccines should be avoided and immunisation status reviewed before initiation.

Monitoring

Monitor clinical response to guide continuation and watch for infusion reactions and signs of infection.

Counselling the patient

  • Report fever or other signs of infection to your healthcare team.
  • This medicine targets inflammation in the bowel rather than acting throughout the whole body.
  • Tell your clinician before having any vaccinations.

Evidence & guidelines

NICE recommends vedolizumab as an option for treating moderately-to-severely active ulcerative colitis and Crohn's disease when other treatments have failed or are unsuitable.

Reference: GEMINI 1 (Feagan et al, NEJM 2013); GEMINI 2 (Sandborn et al, NEJM 2013); NICE TA342; 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.