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Forskolin-induced Swelling in Intestinal Organoids: An In Vitro Assay for Assessing Drug Response in Cystic Fibrosis Patients
Published on: February 11, 2017
[Therapy of cystic fibrosis - new drugs give hope]
Patience Eschenhagen1, Carsten Schwarz1
1Sektion Cystische Fibrose, Christiane Herzog-Zentrum Berlin, Charité - Universitätsmedizin Berlin, Klinik für Pädiatrie m. S. Pneumologie, Immunologie und Intensivmedizin, Campus Rudolf Virchow Klinikum, Berlin.
Abstract:
For decades there were only symptom-oriented therapies for the monogenetic disease cystic fibrosis. With the new modulator therapies there are new hopes to better influence the course of the disease, which has its manifestation in several organs such as the lungs, the liver or pancreas.In addition to ivacaftor, lumacaftor/ivacaftor and tezacaftor/ivacaftor, a triple combination with elexacaftor/tezacaftor/ivacaftor was developed. Studies in F508del homozygous and heterozygous patients with cystic fibrosis have resulted in significant clinical improvement and have therefore been approved by the FDA for the first time in the USA.The results are very promising as already after 4 weeks a significant improvement of FEV1 and a significant decrease of the sweat chloride content could be detected. In the USA all patients with at least one F508del mutation can be prescribed the drug. This corresponds to approximately 90 % of all patients with cystic fibrosis and has the potential to change the landscape of cystic fibrosis.
Insights
New modulator therapies offer hope for cystic fibrosis patients, significantly improving lung function and reducing sweat chloride levels. These treatments, including triple combination therapy, are now approved for about 90% of patients with at least one F508del mutation.
Area of Science:
- Biomedical research
- Pulmonology
- Genetics
Background:
- Cystic fibrosis (CF) is a monogenetic disorder affecting multiple organs.
- Historically, CF treatments focused on symptom management.
- Recent advancements include novel modulator therapies targeting the underlying CFTR protein defect.
Purpose of the Study:
- To evaluate the efficacy of new modulator therapies for cystic fibrosis.
- To assess the impact of triple combination therapy (elexacaftor/tezacaftor/ivacaftor) on CF patients.
- To determine the potential of these therapies to alter the disease course.
Main Methods:
- Clinical studies involving patients with F508del homozygous and heterozygous mutations.
- Administration of triple combination therapy (elexacaftor/tezacaftor/ivacaftor).
- Assessment of clinical outcomes including FEV1 and sweat chloride levels.
Main Results:
- Significant clinical improvement observed in patients treated with triple combination therapy.
- Rapid reduction in FEV1 and sweat chloride levels detected within 4 weeks.
- FDA approval granted for the triple combination therapy in the USA.
Conclusions:
- Elexacaftor/tezacaftor/ivacaftor represents a significant advancement in cystic fibrosis treatment.
- The therapy is accessible to approximately 90% of CF patients in the USA with at least one F508del mutation.
- These modulators have the potential to revolutionize cystic fibrosis care.
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