Treatment for patients with difficulty burping due to muscle dysfunction

Study of a Series of Patients Treated for Retrograde Cricopharyngeal Muscle Dysfunction Syndrome

University Hospital, Strasbourg, France · NCT06174831

This study is testing if botulinum toxin injections can help people with Retrograde Cricopharyngeal Dysfunction, who have trouble burping, feel better.

Quick facts

Study typeObservational
Enrollment30 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital, Strasbourg, France (other)
Locations1 site (Strasbourg)
Trial IDNCT06174831 on ClinicalTrials.gov

What this trial studies

This observational study focuses on patients diagnosed with Retrograde Cricopharyngeal Dysfunction (R-CPD) syndrome, which is characterized by an inability to burp. The research involves patients treated at the University Hospitals of Strasbourg who received botulinum toxin injections into the cricopharyngeus muscle as a therapeutic intervention. The study aims to gather data on the effectiveness of this treatment approach and its impact on patients' symptoms. The diagnosis of R-CPD is clinical, and the study seeks to enhance understanding of this condition, which is relatively unknown in certain regions.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older who have been diagnosed with R-CPD and treated with botulinum toxin injections.

Not a fit: Patients who have not been diagnosed with R-CPD or have not received the specified treatment may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide effective treatment options for patients suffering from R-CPD syndrome.

How similar studies have performed: While R-CPD is a relatively novel condition, the use of botulinum toxin for similar muscle dysfunctions has shown success in other studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Major subject (≥18 years old)
* Subject treated by injection of botulinum toxin into the cricopharyngeal muscle after having had a diagnosis of R-CPD in consultation between January 1, 2022 and December 31, 2022
* Subject not opposing the reuse of their data for the purposes of this research.

Exclusion Criteria:

* Subject having expressed opposition to participating in the study,
* Subject under judicial protection
* Subject under guardianship or curatorship

Where this trial is running

Strasbourg

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.

View on ClinicalTrials.gov →

Conditions: Deglutition Disorders, Dysphagia, cricopharyngeus muscle, Circular sphincter, Esophagus, Botulinum toxin

Last reviewed 2026-05-15 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.