Targeting splicing variants in cystic fibrosis for therapy

Validation of Therapeutic Efficacy Targeting the Splicing Variants in Cystic Fibrosis and CFTR Pathologies

Not applicable Interventional University Hospital, Montpellier · NCT05100823

This study is testing a new treatment that uses special blockers to fix genetic problems in people with cystic fibrosis and related disorders.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment20 (estimated)
Ages12 Years and up
SexAll
SponsorUniversity Hospital, Montpellier Academic / other
Locations1 site (Montpellier)
Trial IDNCT05100823 on ClinicalTrials.gov

What this trial studies

This study aims to validate the therapeutic efficacy of oligonucleotide blockers that target splicing defects associated with cystic fibrosis and CFTR-related disorders. It will involve patients with various CFTR genotypes and utilize an air-liquid interface model of airway epithelium developed from nasal cells. The study will also collect rectal biopsies to build a biobank of organoids from patients with rare CFTR mutations, specifically from Montpellier, France.

Who should consider this trial

Good fit: Ideal candidates include individuals aged 12 and older with cystic fibrosis or CFTR pathologies carrying specific mutations affecting splicing.

Not a fit: Patients who do not have splicing mutations in the CFTR gene or those who are pregnant or breastfeeding may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to personalized therapies that restore normal CFTR protein production in patients with cystic fibrosis.

How similar studies have performed: While the approach of targeting splicing defects is promising, it remains largely novel and untested in clinical settings for cystic fibrosis.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* The subject must have given their free and informed consent and signed the consent
* The subject must be affiliated or beneficiary of a health insurance plan Women and men are included
* The patient is at least 12 years old.
* The patient has cystic fibrosis or a CFTR pathology and therefore carries two mutations (with at least one mutation affecting splicing) in the CFTR gene.
* Patients who volunteer for rectal biopsy collection (only from Montpellier University Hospital) must be at least 18 years old.

Exclusion Criteria:

* The subject is in a period of exclusion determined by a previous study.
* The subject is under judicial protection, under guardianship or under curatorship
* The subject does not accept to sign consent
* It turns out to be impossible to give informed information to the subject
* The subject does not read the French language fluently
* The subject is a pregnant or breastfeeding woman
* The subject has porphyria, or has hepatic insufficiency, or suffers from epilepsy, or suffers from conduction disorders, or suffers from severe heart failure, has a cons-indication to the use of a local anesthetic spray.

Specific non-inclusion criteria for rectal sampling:

* the subject has thrombocytopenia
* the subject has a bleeding disorder
* The patient has severe inflammation of the rectum.

Where this trial is running

Montpellier

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Cystic FibrosisCFTR Gene Mutationgeneticscystic fibrosispersonalized therapyAntisense OligoNucleotide strategysplicing eventsintronic variant
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.