NCT04503785 · Indiana University
Esophageal Impedance and Manometry Measurements and Dysphagia Symptom Scoring
What this study is about
Comparison of manometry measurements and EndoFlip Balloon measurements in patients with dysphagia and a known esophageal diagnosis
View original scientific description
Comparison of manometry measurements and EndoFlip Balloon measurements in patients with dysphagia and a known esophageal diagnosis
Interventions
DIAGNOSTIC_TEST
Manometry
Transnasal Esophageal manometry and Endoflip Balloon distensibility
Primary outcome measures
Endoflip parameters for gastroparesis
Time frame: 5 years
Compare the distensibility index (mm2/mmHg) of the pylorus at 50 ml distension in patients with postsurgical gastroparesis and compare to patients with idiopathic and diabetic gastroparesis.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- All patients who presented to GI Motility Lab at IU University Hospital for esophageal manometry-impedance and/or EndoFLIP
Exclusion criteria
- Age \<18 yrs old
- Unable to communicate verbally with the staff
Where
- Indianapolis, Indiana
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 16, 2026 · Source of record for eligibility and locations