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Achalasia and Dysplasia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02010983
Recruitment Status : Unknown
Verified July 2017 by Guy Boeckxstaens, KU Leuven.
Recruitment status was:  Recruiting
First Posted : December 13, 2013
Last Update Posted : July 11, 2017
Information provided by (Responsible Party):
Guy Boeckxstaens, KU Leuven

Brief Summary:

Patient with achalasia have a 10-50 fold increased risk to develop esophageal squamous cell carcinoma (ESCC). Early diagnosis of ESCC is essential, and detection of an earlier dysplastic stage is preferred. Endoscopic detection is however difficult and often delayed. Chromoendoscopy with Lugol dye increases detection rates dysplasia and ESCC to 91-100%. The aim of this study was therefore to evaluate a screening program using chromoendoscopy with Lugol to detect dysplasia in patients with idiopathic achalasia.

A second objective is to study the relationship between foodstasis and the development op dysplasia

Condition or disease Intervention/treatment Phase
Dysplasia in Longstanding Achalasia Relation Between Food Stasis and Dysplasia Other: chromoendoscopy Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 80 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Screening for Dysplasia in Longstanding Idiopathic Achalasia: a Prospective Study
Study Start Date : October 2013
Estimated Primary Completion Date : December 2017
Estimated Study Completion Date : December 2017

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: longstanding achalasia Other: chromoendoscopy
chromoendoscopy (lugol stain and virtual chromoendoscopy)

Primary Outcome Measures :
  1. incidence of dysplasia in patients with longstanding achalasia [ Time Frame: 1 year ]

Secondary Outcome Measures :
  1. additive value of chromoendoscopy in comparison with lugol stain [ Time Frame: 1 year ]
  2. relationship between food stasis and dysplasia [ Time Frame: 1 year ]
    • relationship between elevated LES pressure and dysplasia
    • relationship between stasis on EndoFLIP and dysplasia
    • relationship between stasis on timed barium esophagogram and dysplasia

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • longstanding achalasia (> 15y)
  • > 18y old
  • informed consent

Exclusion Criteria:

  • allergy to iodine
  • esophageal carcinoma

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02010983

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Contact: an moonen, MD

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UZleuven Recruiting
Leuven, Belgium, 3000
Contact: an moonen, MD   
Principal Investigator: Guy Boeckxstaens, MD PhD         
Sponsors and Collaborators
KU Leuven
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Responsible Party: Guy Boeckxstaens, Prof. Dr., KU Leuven Identifier: NCT02010983    
Other Study ID Numbers: S55021
First Posted: December 13, 2013    Key Record Dates
Last Update Posted: July 11, 2017
Last Verified: July 2017
Additional relevant MeSH terms:
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Esophageal Achalasia
Pathologic Processes
Esophageal Motility Disorders
Deglutition Disorders
Esophageal Diseases
Gastrointestinal Diseases
Digestive System Diseases