An interventional study of Esophageal barrier medical device and Placebo oral formulation in GERD (Gastroesophageal Reflux Disease), NERD and Heartburn, sponsored by Cellmedis. Recruiting at 1 site in Poland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-10.
Sponsored by Cellmedis · Not applicable, Interventional, and Treatment
The goal of this randomized, double-blind, single-center clinical trial RELEIF is to learn if medical devices work to decrease symptoms of gastroesophageal reflux disease (GERD) in adults' patients. It will also teach us about safety, tolerability and improvement of patient's quality of life during and after taking medical device. The main questions it aims to answer are:
Participants will:
This medical device was developed as a modern therapeutic alternative, offering rapid symptom relief and long-term protective effects on the esophageal mucosa. The introduction of medical device aims to expand the available therapeutic options for patients suffering from GERD symptoms and to support physicians in selecting optimal therapy. Thanks to its innovative formula, medical device can avoid the rising the symptoms, provide improved well-being and reduce the frequency of acute medication use.
1,211 studies on the registry are indexed under Gastroesophageal Reflux; 202 are open to participants now.
This study's planned enrollment of 50 is below the median of 68 across 796 interventional studies indexed under Gastroesophageal Reflux.
Browse Gastroesophageal Reflux studies →Cellmedis is the lead sponsor of 2 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.
Criteria about it usually ask for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Reproductive potential
Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.
Criteria about it usually ask for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants receive Placebo oral formulation during the first treatment period followed by esophageal barrier medical device during the second treatment period with a washout interval.
Device: Esophageal barrier medical device · Device: Placebo oral formulation
Participants receive esophageal barrier medical device during the first treatment period followed by Placebo oral formulation during the second treatment period with a washout interval.
Device: Esophageal barrier medical device · Device: Placebo oral formulation
Esophageal barrier medical device designed to form a bioadhesive protective barrier over gastric contents and the esophageal mucosa. The mechanism of action is local and physical, reducing exposure of the esophagus to refluxate without systemic absorption. The product is administered orally according to the study protocol and evaluated in a randomized, double blind, placebo controlled crossover design, distinguishing it from pharmacological acid suppressive therapies.
Oral placebo formulation designed to match the investigational product in appearance, taste, and administration schedule, without containing active components. It does not form a protective barrier and has no therapeutic effect. The placebo is administered according to the same protocol as the active intervention within a randomized, double blind, placebo controlled crossover design to ensure blinding and allow comparative assessment.
Also known as: Placebo, Matching placebo, Inactive comparator formulation
Change in reflux symptom severity score
Change from baseline in patient reported gastroesophageal reflux symptoms assessed using the GERD-HRQL questionnaire. Clinical response is defined as a reduction of at least 50 percent in the total GERD-HRQL score after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: Baseline and after 14 days of treatment in each treatment period of the crossover study.
Proportion of patients with complete clinical remission
Proportion of patients achieving complete clinical remission of gastroesophageal reflux symptoms assessed using the GERD-HRQL questionnaire. Complete remission is defined as a total score of 0 points in questions 1 to 15 of the GERD-HRQL after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: After 14 days of treatment in each treatment period of the crossover study.
Onset and duration of action of the investigational device.
Assessment of the onset and duration of action of the esophageal barrier medical device using a patient reported questionnaire. Onset of action is defined as the subjective relief of heartburn within two predefined time intervals: up to 15 minutes classified as very rapid onset and 16 to 30 minutes classified as rapid onset. Duration of action is defined as the time period free from reflux symptoms following administration of the investigational product.
Time frame: During the 14 day treatment period, assessed after each administration throughout each treatment phase.
Proportion of patients with complete clinical remission of heartburn.
Proportion of patients achieving complete clinical remission of heartburn assessed using the GERD-HRQL questionnaire. Complete remission of heartburn is defined as a total score of 0 points in questions 1 to 6 of the GERD-HRQL after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: After 14 days of treatment in each treatment period of the crossover study.
Proportion of patients with clinical response of heartburn.
Proportion of patients achieving clinical response of heartburn assessed using the GERD-HRQL questionnaire. Clinical response is defined as a reduction of at least 50 percent in the total score of questions 1 to 6 of the GERD-HRQL after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: After 14 days of treatment in each treatment period of the crossover study.
Proportion of patients with complete clinical remission of regurgitation.
Proportion of patients achieving complete clinical remission of regurgitation assessed using the GERD-HRQL questionnaire. Complete remission of regurgitation is defined as a total score of 0 points in questions 10 to 15 of the GERD-HRQL after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: After 14 days of treatment in each treatment period of the crossover study.
Proportion of patients with clinical response of regurgitation.
Proportion of patients achieving clinical response of regurgitation assessed using the GERD-HRQL questionnaire. Clinical response is defined as a reduction of at least 50 percent in the total score of questions 10 to 15 of the GERD-HRQL after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: After 14 days of treatment in each treatment period of the crossover study.
Change in heartburn and regurgitation severity on Likert scale
Change in severity of heartburn and regurgitation assessed using a five point Likert scale. Improvement is defined as a reduction of at least 2 points in the combined symptom severity score after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: Baseline and after 14 days of treatment in each treatment period of the crossover study.
Proportion of patients with improvement in quality of life
Proportion of patients achieving improvement in quality of life assessed using the 36 Item Short Form Survey SF 36. Improvement is defined as a reduction of at least 5 points in the total SF 36 score after 14 days of treatment with esophageal barrier medical device compared with placebo.
Time frame: Baseline and after 14 days of treatment in each treatment period of the crossover study.
Plan to share: No — Individual participant data will not be made publicly available due to privacy considerations and applicable data protection regulations. Aggregated and anonymized results will be reported in scientific publications. Data may be available from the corresponding author upon reasonable request, subject to institutional approval and data sharing agreements.
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