Reslizumab
Brand names: Cinqaero
Reslizumab is a humanised anti-interleukin-5 (IL-5) monoclonal antibody given by intravenous infusion, used as add-on therapy for severe eosinophilic asthma.
Adult dose
Dose auto-extracted from 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
- Known hypersensitivity to reslizumab or any of its excipients (§4)
Side effects
- Oropharyngeal pain — the most common adverse reaction (incidence greater than or equal to 2%)
- Anaphylaxis — reported in 0.3% of asthma patients in placebo-controlled studies, occurring during or within 20 minutes of completing the infusion and reported as early as the second dose; manifestations included dyspnoea, decreased oxygen saturation, wheezing, vomiting, and skin and mucosal involvement including urticaria
- Malignancy — malignancies were observed in clinical studies (§5.3)
Interactions
- No formal clinical drug interaction studies have been performed with CINQAIR (§7)
Clinical monograph
How it works
It binds circulating IL-5 and blocks its interaction with the eosinophil surface receptor, reducing eosinophil maturation and survival and thereby eosinophilic airway inflammation.
Prescribing in practice
- Anaphylaxis can occur during or shortly after infusion, so doses are administered under supervision with the ability to manage severe reactions and patients are observed afterwards.
- It is an add-on preventer for severe eosinophilic asthma and is not for acute exacerbations; usual therapy must continue.
- Treat any pre-existing helminth infection before starting and initiate within specialist severe-asthma services per NICE guidance.
Monitoring
Monitor asthma control, exacerbation frequency and blood eosinophil count, and observe patients during and after each infusion for hypersensitivity.
Counselling the patient
- This infusion is given to prevent attacks and is not a rescue treatment.
- Continue your usual inhalers and reliever between infusions.
- Report any rash, flushing, swelling or breathing difficulty during or after the infusion.
Evidence & guidelines
NICE technology appraisal guidance supports reslizumab as add-on therapy for severe eosinophilic asthma in defined populations.
Reference: NICE TA479; BTS/SIGN; 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.
- Revised Original International Autoimmune Hepatitis Score (IAIHG) · Autoimmune Liver Disease
- Ho Index for Predicting Response to Medical Therapy in IBD · Inflammatory Bowel Disease
- Rh(D) Immune Globulin Dosage for Maternal-Fetal Haemorrhage · Haematology in Pregnancy
- AREDS Classification of Age-related Macular Degeneration · Macular Degeneration
- Diabetic Macular Oedema (DMO) Classification · Diabetic Retinopathy
- Retinopathy of Prematurity — International Classification (ICROP3) · Paediatric Retina
- Acute Asthma in Adults · BTS/SIGN British Guideline on Asthma 2019; NICE NG80
- Pulmonary Embolism Assessment · NICE NG158; ESC 2019 PE Guidelines
- Acute Exacerbation of COPD (AECOPD) · NICE NG115; GOLD 2024
- Spontaneous Pneumothorax (Adult) · BTS Pleural Disease 2023
- Atypical Pneumonia (Legionella / Mycoplasma / Chlamydophila) · BTS 2023; IDSA
- COPD Exacerbation Management · NICE NG115 / GOLD 2024