Efficacy of Reza Band for the Treatment of Laryngopharyngeal Reflux
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|ClinicalTrials.gov Identifier: NCT03463395|
Recruitment Status : Withdrawn (Funding for this study has ended and we were unable to enroll any subjects)
First Posted : March 13, 2018
Last Update Posted : May 8, 2020
We hypothesize that tissue and salivary pepsin will resolve after 12 weeks use of Reza Band, but not following standard of care alone. Additionally, RFS, RSI and inflammatory cytokines (IL -1β, -6, and -8) will decrease to normative levels following 12 weeks use of Reza Band, but not with standard of care alone.
Primary Objective The primary objective is to evaluate the efficacy of the Reza Band for the treatment of LPR. We propose a pilot clinical trial to test the hypothesis that the Reza Band is effective for the treatment of LPR, measured by resolution of pepsin and decrease to normative values for RSI, Reflux Finding Score (RFS) and inflammatory cytokines.
The long-term goal is to determine the efficacy of the Reza Band in the sequential progression of reflux-attributed laryngeal inflammatory and neoplastic disease.
|Condition or disease||Intervention/treatment||Phase|
|Laryngopharyngeal Reflux||Device: Reza band||Not Applicable|
We propose a prospective cohort study. Sixty patients ≥ 18 years of age presenting to our laryngology outpatient clinic with LPR, with an RFS ≥ 7 and an RSI ≥ 13, not on anticoagulants, able to tolerate an endoscopy and consent to participate in this research study will be included. The study will consist of two cohorts. Cohort one will receive standard care (n = 30), and cohort two will receive standard care plus the Reza Band (to be worn as recommended by the manufacturer; n = 30). Patients will be assigned to either of the cohorts, based on their preferences.
Two laryngeal (posterior cricoid) biopsy specimens (one for pepsin ELISA and the other for qPCR for IL -1β, -6, and -8 inflammatory cytokines) and a throat saliva sample (for pepsin ELISA) will be obtained pre- and posttreatment (12 weeks) in an ambulatory clinic setting. The RSI, a patient-reported symptom severity questionnaire, will be administered in the clinic pre- and posttreatment. (36) Patients will be instructed to cough and clear the back of their throat to provide a saliva sample prior to endoscopy. The RFS (37) will be obtained by the study physicians during office endoscopy prior to biopsy. Deidentified biopsy and saliva samples will be transported to the research laboratory on ice and stored at -80 prior to analyses by ELISA and qPCR.
Pepsin ELISA One biopsy per subject will be homogenized in urea lysis buffer and total protein concentration determined as previously described (28). Saliva samples will be cleared by brief centrifugation. Noncompetitive indirect sandwich enzyme-linked immunosorbent assay described previously (35) will be performed to detect pepsin in biopsy homogenate and saliva.
qPCR RNA will be extracted from a second biopsy, DNAsed and reverse transcribed as described (38). Real time polymerase chain reaction will be performed in a Viaa7 Real Time PCR System using Taqman Gene Expression Assays targeting IL -1β, -6, and -8, and the housekeeping gene HPRT1 (ThermoFisher Scientific, Waltham, MA).
This pilot study will pave the way for clinical trials of a much-needed therapy for airway reflux. If the hypothesis proves true and the Reza Band resolves pepsin and inflammatory cytokines, and significantly improves endoscopic signs (RFS) and symptoms (RSI) of LPR, these data will also support a clinical trial to assess the utility of the Reza Band in preventing reflux-attributed laryngeal inflammatory and neoplastic disease sequelae. To our knowledge, this is the first study that will use pepsin as a primary outcome measure; it is believed to be a sensitive and specific biomarker for reflux and aspiration.
Deidentified biopsy and saliva samples will be transported to the research laboratory on ice and stored at -80 degrees C prior to analyses by ELISA and qPCR. The tissue and saliva samples will be labeled with patient study ID number and date of collection.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||0 participants|
|Intervention Model:||Parallel Assignment|
|Intervention Model Description:||Sixty patients ≥ 18 years of age presenting to the investigator's laryngology outpatient clinic with LPR, with an RFS ≥ 7 and an RSI ≥ 13, not on anticoagulants, able to tolerate an endoscopy and consent to participate in this research study will be included. One cohort (Group A) will receive standard care (n =30), the other (Group B) will receive standard care plus the Reza band (to be worn as recommended by the manufacturer; n = 30).|
|Masking:||None (Open Label)|
|Official Title:||Efficacy of Reza Band for the Treatment of Laryngopharyngeal Reflux|
|Estimated Study Start Date :||July 2020|
|Estimated Primary Completion Date :||November 2021|
|Estimated Study Completion Date :||November 2021|
No Intervention: Standard of Care
Group A will receive standard of care
Experimental: Reza band use
Group B will receive standard care plus the Reza band (worn as recommended by the manufacturer)
Device: Reza band
Reza band, a non-medication, non-surgical medical device designed to reduce symptoms of LPR has recently been approved by the FDA. It works by stopping the flow of gastric contents through the upper esophageal sphincter (UES) by increasing the internal pressure of the UES
- Change in Tissue and Salivary Pepsin Levels [ Time Frame: The change in Pepsin will be measured pre and post 12 week treatment for LPR +/- Reza band ]The primary objective is to evaluate the efficacy of the Reza Band for the treatment of LPR. We propose a pilot clinical trial to test the hypothesis that the Reza Band is effective for the treatment of LPR, measured by resolution of pepsin and decrease to normative values for RSI, Reflux Finding Score (RFS) and inflammatory cytokines.
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 ClinicalTrials.gov identifier (NCT number): NCT03463395
|United States, Wisconsin|
|Froedtert Hospital and Medical College of Wisconsin|
|Milwaukee, Wisconsin, United States, 53226|
|Study Director:||Nikki Johnston, PhD||Medical College of Wisconsin|