Regkirona (regdanvimab) – this medicine is authorised for use in the European Union

Regkirona is a medicine used for treating COVID-19 in adults who do not require supplemental oxygen and who are at increased risk of their disease becoming severe.

Regkirona contains the active substance regdanvimab.

Regkirona is given as a single infusion (drip) into a vein within 7 days of the start of COVID-19 symptoms; the dose depends on the patient’s body weight.

The medicine can only be obtained with a prescription and should be given in healthcare facilities where patients can be monitored while receiving the infusion and for at least 1 hour afterwards, and where they can be adequately managed in case they develop severe allergic reactions, including anaphylaxis.

The active substance in Regkirona, regdanvimab, is a monoclonal antibody with activity against SARS-CoV-2, the virus that causes COVID 19. A monoclonal antibody is a type of protein that has been designed to attach to a specific structure (called an antigen). Regdanvimab has been designed to attach to the spike protein of SARS-CoV-2. When regdanvimab attaches to the spike protein, the virus is unable to enter the body’s cells.

A main study involving 1,315 patients with COVID-19 showed that Regkirona led to fewer patients requiring hospitalisation or oxygen therapy, or dying, when compared with placebo (a dummy treatment). Among the patients at increased risk of their illness becoming severe, 3.1% of patients treated with Regkirona (14 out 446) were hospitalised, required supplemental oxygen or died within 28 days of treatment compared with 11.1% of patients on placebo (48 out of 434).

The majority of patients in the study were infected with the original SARS-CoV-2 virus or the Alpha variant; data on the efficacy of Regkirona against some circulating SARS-CoV-2 variants is currently limited.

Infusion-related reactions, including allergic reactions and anaphylaxis, may affect up to 1 in 1,000 people given Regkirona.

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