Lyfnua

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Authorised

This medicine is authorised for use in the European Union

gefapixant
MedicineHumanAuthorised
  • Application under evaluation
  • CHMP opinion
  • European Commission decision

Overview

Lyfnua is a medicine used to treat adults with chronic (long-term) cough which is unexplained or for which other treatments have not worked.

The medicine contains the active substance gefapixant.

In response to inflammation or airway irritation, cells within the lining of the airways produce high levels of a substance called ATP. ATP attaches to specific receptors (targets) on nerve cells in the airways, which stimulates the nerves and triggers the urge to cough. The active substance in Lyfnua, gefapixant, blocks these receptors and keeps the nerves from triggering the cough reflex.

The benefits of Lyfnua were investigated in two main studies involving 1,360 adults with chronic cough, who were given Lyfnua or placebo (a dummy treatment). Lyfnua was shown to be more effective than placebo at lowering the average number of times patients coughed per hour, measured over a 24-hour period. In the first study, after 12 weeks of treatment, the average number of coughs per hour in patients given Lyfnua went from 18.2 to 7.1 (a reduction of 61%) compared with a decrease from 22.8 to 10.3 (a reduction of 55%) in patients given placebo. In the second study, after 24 weeks of treatment, the average number of coughs per hour went from 18.6 to 6.8 (a reduction of 63%) in patients given Lyfnua compared with a decrease from 19.5 to 8.3 (a reduction of 57%) in patients given placebo.

For the full list of side effects and restrictions with Lyfnua, see the package leaflet.

The most common side effects with Lyfnua (which may affect more than 1 in 10 people) include taste disorders: dysgeusia (changes in the sense of taste), ageusia (loss of sense of taste) and hypogeusia (reduced sense of taste).

Lyfnua showed a modest effect in terms of reducing the number of daily coughs in patients with chronic cough. Side effects with Lyfnua are considered manageable; the most common side effects concerned taste disorders and these generally resolved once patients stopped treatment. The European Medicines Agency therefore decided that Lyfnua’s benefits are greater than its risks and it can be authorised for use in the EU.

Recommendations and precautions to be followed by healthcare professionals and patients for the safe and effective use of Lyfnua have been included in the summary of product characteristics and the package leaflet.

As for all medicines, data on the use of Lyfnua are continuously monitored. Suspected side effects reported with Lyfnua are carefully evaluated and any necessary action taken to protect patients.

Lyfnua received a marketing authorisation valid throughout the EU on 15 September 2023.

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Product information

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This medicine’s product information is available in all official EU languages.
Select 'available languages' to access the language you need.

 

Product information documents contain:

  • summary of product characteristics (annex I);
  • manufacturing authorisation holder responsible for batch release (annex IIA);
  • conditions of the marketing authorisation (annex IIB);
  • labelling (annex IIIA);
  • package leaflet (annex IIIB).

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Product details

Name of medicine
Lyfnua
Active substance
Gefapixant
International non-proprietary name (INN) or common name
gefapixant
Therapeutic area (MeSH)
Cough
Anatomical therapeutic chemical (ATC) code
R05DB29

Pharmacotherapeutic group

Cough and cold preparations

Therapeutic indication

Lyfnua is indicated in adults for the treatment of refractory or unexplained chronic cough.

Authorisation details

EMA product number
EMEA/H/C/005476

Additional monitoring

This medicine is under additional monitoring, meaning that it is monitored even more intensively than other medicines. For more information, see Medicines under additional monitoring.

Marketing authorisation holder
Merck Sharp & Dohme B.V.

Waarderweg 39
2031 BN Haarlem
The Netherlands

Opinion adopted
20/07/2023
Marketing authorisation issued
15/09/2023

Assessment history

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