Benralizumab (Fasenra) for the treatment of severe asthma


The drug benralizumab (trade name: Fasenra) has been approved in Germany since January 2018 for the treatment of severe eosinophilic in adults. The drug is an additional treatment option if treatment with high-dose corticosteroids and long-acting beta2 agonists is no longer enough to manage the symptoms.

People with asthma have an that permanently tends to overreact. When the mucous membranes lining the lungs (bronchi) come into contact with certain irritants, the muscles of the airways may contract. Typical symptoms include episodes or "attacks" of wheezing, coughing and shortness of breath. Eosinophilic granulocytes are cells of the body's immune system. In eosinophilic , patients have an increased number of these cells in their blood and phlegm.

Benralizumab is an antibody against a chemical messenger produced by the . It is meant to weaken the immune response in the by reducing the number of eosinophilic granulocytes.


The drug is available in pre-filled syringes at a dosage of 30 mg. The first three doses are injected into the stomach, the thigh, or the upper arm every four weeks. Afterwards, an injection is used every two months.

Other treatments

The standard treatments for people with severe eosinophilic are an individual combination of inhaled corticosteroids and long-acting bronchodilators, tiotropium to widen the airways and, for certain types of severe allergic , omalizumab. Short-term use of oral corticosteroids may also be an option to support the treatment.


In 2018, the Institute for Quality and Efficiency in Health Care (IQWiG, Germany) wanted to look into the advantages and disadvantages of benralizumab compared with the standard treatments for adults with severe eosinophilic .

But the manufacturer did not provide any suitable data with which to do the assessment.

More information

This information summarizes the main results of a review produced by the Institute for Quality and Efficiency in Health Care (IQWiG, Germany). The review was commissioned by the German Federal Joint Committee (G-BA) as part of the “early benefit assessment of medications.” On the basis of this review and the hearings received, the G-BA passed a resolution on the added benefit of benralizumab (Fasenra).

Institute for Quality and Efficiency in Health Care (IQWiG, Germany). Benralizumab (asthma) – Benefit assessment according to § 35a Social Code Book V. Dossier assessment; Commission A18-11. May 09, 2018. (IQWiG reports; Volume 625).

IQWiG health information is written with the aim of helping people understand the advantages and disadvantages of the main treatment options and health care services.

Because IQWiG is a German institute, some of the information provided here is specific to the German health care system. The suitability of any of the described options in an individual case can be determined by talking to a doctor. can provide support for talks with doctors and other medical professionals, but cannot replace them. We do not offer individual consultations.

Our information is based on the results of good-quality studies. It is written by a team of health care professionals, scientists and editors, and reviewed by external experts. You can find a detailed description of how our health information is produced and updated in our methods.

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Created on May 30, 2018
Next planned update: 2021


Institute for Quality and Efficiency in Health Care (IQWiG, Germany)

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