Cystic fibrosis: the revolution of CFTR modulators
A genetic disease transformed by innovation
Dr. Karim Benhaddou
Pulmonologist

In simple terms
Kaftrio, respiratory physiotherapy, transplantation: life expectancy has doubled in 30 years.
A multisystemic genetic disease
Cystic fibrosis results from mutations in the CFTR gene, causing thick mucus that obstructs the bronchi, pancreas, and bile ducts. Symptoms: repeated respiratory infections, pancreatic insufficiency, male infertility, salty sweat.
Diagnosis
Neonatal screening (immunoreactive trypsin), sweat test, genetics (>2000 mutations identified, F508del most common).
CFTR modulators: the revolution
Kaftrio (elexacaftor/tezacaftor/ivacaftor) benefits more than 90% of patients with at least one F508del mutation. Dramatic reduction in exacerbations, improvement in respiratory function and quality of life.
Global management
Daily respiratory physiotherapy, targeted antibiotic therapy (including inhaled), pancreatic enzymes, fat-soluble vitamins (A, D, E, K), hypercaloric nutrition. Lung transplantation for terminal forms.
The words explained
Medical terms used above, in everyday language.
- Symptom
- A sign you can feel or see that something is wrong, like pain, tiredness or a rash.
- Diagnosis
- The moment a doctor identifies which illness is causing your symptoms.
- Immune system
- Your body's defence team: cells that fight germs and repair damage.
- Antibiotic
- A medicine that kills bacteria. It does not work against viruses like colds or flu.
- Screening
- A check-up done before you feel ill, to catch a problem early.
- Genetic
- Passed down in your family through your genes.
When should you see a doctor?
- Your symptoms last more than a few weeks or keep coming back.
- They get worse quickly, or stop you doing everyday things.
- You notice sudden pain, breathing trouble, fainting or bleeding — seek urgent care.
- You already take medication and want to change anything about it.
This article explains general health information. It does not replace advice from your own doctor.
Frequently asked questions
- What is Cystic fibrosis: the revolution of CFTR modulators?
- Kaftrio, respiratory physiotherapy, transplantation: life expectancy has doubled in 30 years.
- What are the main symptoms or signs of Cystic fibrosis: the revolution of CFTR modulators?
- Common signs vary from person to person. The article above lists the symptoms to watch for, how they progress, and when they need medical attention.
- When should you see a doctor for Cystic fibrosis: the revolution of CFTR modulators?
- See a doctor if symptoms last more than a few weeks, get worse quickly, stop you doing everyday things, or if you notice sudden pain, breathing trouble, fainting or bleeding.
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