Gastroesophageal Reflux Disease (GERD)
Conditions
Keywords
TEMPO, TIF, Transoral Incisionless Fundoplication, EsophyX System, refractory symptoms, proton pump inhibitors, EndoGastric Solutions, EGS, Acid Reflux, Heartburn, Regurgitation
Brief summary
The purpose of this study is to assess the efficacy and safety of Transoral Incisionless Fundoplication (TIF) performed with EsophyX as compared to proton pump inhibitor (PPI) therapy for the treatment of chronic Gastroesophageal Reflux Disease (GERD) patients with refractory symptoms on Proton Pump Inhibitors (PPIs).
Detailed description
The objective of this study is to assess the efficacy and safety of TIF performed with EsophyX as compared to proton pump inhibitor (PPI) therapy for the treatment of chronic GERD patients with medically refractory GERD symptoms other than heartburn. Primary hypothesis: TIF will be superior to PPIs in eliminating or significantly improving daily bothersome GERD symptoms and/or troublesome regurgitation, if present, at 6-month follow-up. Secondary hypotheses: TIF will be superior to PPIs in eliminating or significantly improving daily bothersome GERD symptoms and/or troublesome regurgitation, if present, at 12-, 24-, 36-, 48- and 60-month follow-up. The majority of surgical patients will have normalized or 50% improved esophageal acid exposure compared to baseline at 6-month follow-up. The majority of surgical patients will be completely off PPIs at 6-, 12-, 24-, 36-, 48- and 60-month follow-up compared to baseline. The majority of crossover patients will be completely off PPIs at 6-, 18-, 30-, 42- and 54-month follow-up compared to baseline. A statistically greater proportion of crossover patients treated with TIF will be free of daily bothersome symptom(s) or will experience clinically significant improvement at 6-, 18-, 30-, 42- and 54-month follow-up.
Interventions
Transoral Incisionless Fundoplication (TIF)/Transoral incisionless esophago-gastric fundoplication using the EsophyX System with SerosaFuse fasteners
Control Arm participants will take maximum standard dose of PPI during Initial Study period
Sponsors
Study design
Eligibility
Inclusion criteria
1. Age 18-80 years; 2. GERD for \> 1 year; 3. History of daily PPIs for \> 6 months; 4. At least daily bothersome medically refractory GERD symptom(s) other than heartburn on PPIs; 5. Hill grade I and II at gastroesophageal junction; 6. Proven gastroesophageal reflux by either endoscopy, ambulatory pH or barium swallow testing; 7. Willingness to undergo pH testing; 8. Willingness to cooperate with the postoperative diet; 9. Availability for follow-up visits at 6, 12, 24, and 36 months; 10. Willingly and cognitively signed inform consent
Exclusion criteria
1. BMI \> 35 Hiatal hernia \> 2c m in axial height and \> 2 cm in greatest transverse dimension; 2. Esophagitis grade C and D; 3. Barrett's esophagus \> 2 cm; 4. Esophageal ulcer; 5. Fixed esophageal stricture or narrowing; 6. Portal hypertension and/or varices; 7. Active gastro-duodenal ulcer disease; Gastric outlet obstruction or stenosis; 8. Gastroparesis; 9. Coagulation disorders; 10. History of any of the following: resective gastric or esophageal surgery, antireflux surgery with anatomy unsuitable for TIF procedure per physician judgment, cervical spine fusion, Zenker's diverticulum, esophageal epiphrenic diverticulum, achalasia, scleroderma or dermatomyositis, eosinophilic esophagitis, or cirrhosis; 11. Pregnancy or plans of pregnancy in the next 12 months; 12. Enrollment in another device or drug study that may confound the results
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants Reporting GERD (Gastroesophageal Reflux Disease) Symptom Elimination or Clinically Significant Improvement Evaluated by RSI (Reflux Symptom Index) and RDQ (Reflux Disease Questionnaire). | 6 months | Elimination or clinically significant improvement in GERD symptoms, other than heartburn, refractory to PPI, evaluated by Reflux Symptom Index (RSI):9-item questionnaire measures atypical symptoms: hoarseness, throat clearing, excess throat mucus, dysphagia, cough. Scale for each item ranges from 0 (no problem) to 5 (severe), with max total score of 45, normality threshold of ≤13. Reflux Disease Questionnaire (RDQ):12-item questionnaire to assess frequency and severity of heartburn (4 items measure frequency/severity of pain and burning behind breastbone), regurgitation (4 items measure frequency/severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity. Scores calculated as mean of item responses with higher scores indicating more severe or frequent symptoms. |
| Number of Participants Reporting Elimination of Daily Troublesome Regurgitation Using a Validated Questionnaire for Assessment | 6 months | Elimination or clinically significant improvement in troublesome regurgitation refractory to PPIs as evaluated by the disease-specific and validated instrument, Reflux Disease Questionnaire (RDQ):12-item questionnaire assesses frequency and severity of heartburn (4 items measure frequency and severity of pain and burning behind breastbone), regurgitation (4 items measuring the frequency and severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses range from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity. Patient's score is calculated as the mean of item responses with higher scores indicating more severe or frequent symptoms. A frequency score of 3 or more and severity score of 2 or more for the regurgitation questions were required to meet the Montreal consensus criteria for troublesome regurgitation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation | 6 Months | Elimination of daily bothersome GERD (Gastro Esophageal Reflux Disease) HRQL symptoms, using RDQ (Reflux Disease Questionnaire), RSI (Reflux Symptom Index) and as measured by complete discontinuation of PPI (Proton Pump Inhibitors) therapy at 6-month follow-up. |
| Number of Participants With Normalization of Esophageal Acid Exposure Assessed Using 48-hour pH Metry | 6 Months | Assessment of esophageal acid exposure with normal defined as pH\<4 in less than 5.3% total time exposure, using 48hr pH metry, with patients off PPIs for at least 7 days |
| Number of Participants With Complete Healing or Reduction of Reflux Esophagitis, Assessed by EGD Using Los Angeles (LA) Grading | 6 months | Esophagitis graded using the LA grading system through endoscopic visualization. Data entered represents study participants with complete healing or reduction in reflux esophagitis compared to baseline results. Note that Control arm patients were assessed while on PPIs. LA grades are A, B, C, D, with A being the least severe. Grade D was an exclusion criteria. Normal has no associated grade. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Number of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire | 6 months | Elimination of daily bothersome heartburn as measured by GERD-HRQL (Gastro Esophageal Reflux Disease - Health-Related Quality of Life) questionnaire. GERD-HRQL is a validated questionnaire used to assess typical GERD symptoms by measuring 10 items on the visual analog scale ranging from 0 (no symptoms) to 5 (worst symptoms). A higher total GERD-HRQL score (range from 0 to 50) indicates more severe GERD. Note Control Arm patients are assessed while on standard daily dose of PPIs. |
Countries
United States
Participant flow
Recruitment details
Patients were recruited from seven U.S. hospitals.
Pre-assignment details
65 patients randomized: 41 treatment, 24 control. 39 and 21 respectively, were completed. Control-arm patients offered Crossover to TIF following 6 mo. follow-up visit. 21 control-arm patients crossed over to TIF procedure after 6-month follow-up. Note: 6 mo. difference between Crossover and Treatment patient post-hoc results. Extended Results Phase (3 and 5yr follow-up) participants are placed in a single cohort of Treatment + Control arm patients.
Participants by arm
| Arm | Count |
|---|---|
| Treatment Arm Transoral incisionless esophago-gastric fundoplication using the EsophyX system with SerosaFuse fasteners (EndoGastric Solutions, Inc., Redmond, WA, USA) and following TIF2.0 protocol.
EsophyX System with SerosaFuse fasteners: Transoral Incisionless Fundoplication (TIF)/Transoral Incisionless Esophago-Gastric Fundoplication | 39 |
| Control Patients who are dependent upon daily PPIs will continue on single dose twice daily or increase to single dose twice daily for the first six months of the clinical trial. | 21 |
| Total | 60 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Continuation Phase | treatment received during Overall Study | 39 | 0 |
| Extended Follow-up Phase | Lost to Follow-up | 8 | 0 |
| Initial Study | Lost to Follow-up | 2 | 3 |
Baseline characteristics
| Characteristic | Control | Treatment Arm | Total |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 0 Participants | 5 Participants | 5 Participants |
| Age, Categorical Between 18 and 65 years | 21 Participants | 34 Participants | 55 Participants |
| Age, Continuous | 50.1 years | 54.8 years | 53.16 years |
| Region of Enrollment United States | 21 Participants | 39 Participants | 60 Participants |
| Sex: Female, Male Female | 13 Participants | 20 Participants | 33 Participants |
| Sex: Female, Male Male | 8 Participants | 19 Participants | 27 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 41 | 0 / 24 |
| other Total, other adverse events | 2 / 41 | 0 / 24 |
| serious Total, serious adverse events | 0 / 41 | 0 / 24 |
Outcome results
Number of Participants Reporting Elimination of Daily Troublesome Regurgitation Using a Validated Questionnaire for Assessment
Elimination or clinically significant improvement in troublesome regurgitation refractory to PPIs as evaluated by the disease-specific and validated instrument, Reflux Disease Questionnaire (RDQ):12-item questionnaire assesses frequency and severity of heartburn (4 items measure frequency and severity of pain and burning behind breastbone), regurgitation (4 items measuring the frequency and severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses range from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity. Patient's score is calculated as the mean of item responses with higher scores indicating more severe or frequent symptoms. A frequency score of 3 or more and severity score of 2 or more for the regurgitation questions were required to meet the Montreal consensus criteria for troublesome regurgitation.
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Reporting Elimination of Daily Troublesome Regurgitation Using a Validated Questionnaire for Assessment | 29 Participants |
| Control | Number of Participants Reporting Elimination of Daily Troublesome Regurgitation Using a Validated Questionnaire for Assessment | 9 Participants |
Number of Participants Reporting GERD (Gastroesophageal Reflux Disease) Symptom Elimination or Clinically Significant Improvement Evaluated by RSI (Reflux Symptom Index) and RDQ (Reflux Disease Questionnaire).
Elimination or clinically significant improvement in GERD symptoms, other than heartburn, refractory to PPI, evaluated by Reflux Symptom Index (RSI):9-item questionnaire measures atypical symptoms: hoarseness, throat clearing, excess throat mucus, dysphagia, cough. Scale for each item ranges from 0 (no problem) to 5 (severe), with max total score of 45, normality threshold of ≤13. Reflux Disease Questionnaire (RDQ):12-item questionnaire to assess frequency and severity of heartburn (4 items measure frequency/severity of pain and burning behind breastbone), regurgitation (4 items measure frequency/severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity. Scores calculated as mean of item responses with higher scores indicating more severe or frequent symptoms.
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Reporting GERD (Gastroesophageal Reflux Disease) Symptom Elimination or Clinically Significant Improvement Evaluated by RSI (Reflux Symptom Index) and RDQ (Reflux Disease Questionnaire). | 24 Participants |
| Control | Number of Participants Reporting GERD (Gastroesophageal Reflux Disease) Symptom Elimination or Clinically Significant Improvement Evaluated by RSI (Reflux Symptom Index) and RDQ (Reflux Disease Questionnaire). | 1 Participants |
Number of Participants With Complete Healing or Reduction of Reflux Esophagitis, Assessed by EGD Using Los Angeles (LA) Grading
Esophagitis graded using the LA grading system through endoscopic visualization. Data entered represents study participants with complete healing or reduction in reflux esophagitis compared to baseline results. Note that Control arm patients were assessed while on PPIs. LA grades are A, B, C, D, with A being the least severe. Grade D was an exclusion criteria. Normal has no associated grade.
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Complete Healing or Reduction of Reflux Esophagitis, Assessed by EGD Using Los Angeles (LA) Grading | 18 Participants |
| Control | Number of Participants With Complete Healing or Reduction of Reflux Esophagitis, Assessed by EGD Using Los Angeles (LA) Grading | 5 Participants |
Number of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation
Elimination of daily bothersome GERD (Gastro Esophageal Reflux Disease) HRQL symptoms, using RDQ (Reflux Disease Questionnaire), RSI (Reflux Symptom Index) and as measured by complete discontinuation of PPI (Proton Pump Inhibitors) therapy at 6-month follow-up.
Time frame: 6 Months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation | 35 Participants |
| Control | Number of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation | 0 Participants |
Number of Participants With Normalization of Esophageal Acid Exposure Assessed Using 48-hour pH Metry
Assessment of esophageal acid exposure with normal defined as pH\<4 in less than 5.3% total time exposure, using 48hr pH metry, with patients off PPIs for at least 7 days
Time frame: 6 Months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Normalization of Esophageal Acid Exposure Assessed Using 48-hour pH Metry | 21 Participants |
| Control | Number of Participants With Normalization of Esophageal Acid Exposure Assessed Using 48-hour pH Metry | 11 Participants |
Number of Participants Completely Off Daily PPIs Following TIF and Crossover TIF (Secondary Endpoint)
Number of patients reporting complete cessation of daily PPI therapy at 12 months post TIF and 6 months post Crossover TIF. This is patient-reported.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Completely Off Daily PPIs Following TIF and Crossover TIF (Secondary Endpoint) | 32 Participants |
| Control | Number of Participants Completely Off Daily PPIs Following TIF and Crossover TIF (Secondary Endpoint) | 15 Participants |
Number of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint)
Assessment of the number of patients reporting elimination of troublesome regurgitation using the validated Reflux Disease Questionnaire (RDQ), a 12-item questionnaire to assess frequency and severity of heartburn (4 items measure frequency/severity of pain and burning behind breastbone), regurgitation (4 items measure frequency/severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity. A frequency score of three or more and severity score of two or more for the regurgitation questions were required to meet the Montreal consensus criteria for troublesome regurgitation. The cohort of patients reported includes Treatment arm patients and Crossover patients combined as one group. Crossover patients included in the cohort are 30 months post TIF.
Time frame: 36 months
Population: Extended Follow-up Phase will place all patients into one cohort, combining Treatment and Control arm patients. All become Treatment patients so Control arm number of participants becomes 0.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint) | 37 Participants |
| Control | Number of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint) | 0 Participants |
Number of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint)
Assessment of the number of patients reporting elimination of troublesome regurgitation using the validated Reflux Disease Questionnaire (RDQ), a 12-item questionnaire to assess frequency and severity of heartburn (4 items measure frequency/severity of pain and burning behind breastbone), regurgitation (4 items measure frequency/severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity A frequency score of three or more and severity score of two or more for the regurgitation questions were required to meet the Montreal consensus criteria for troublesome regurgitation. The lower the score the better the outcome. (Crossover patients are 6-months post TIF.)
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint) | 28 Participants |
| Control | Number of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint) | 6 Participants |
Number of Participants Satisfied With Their Current Health Condition (Secondary Endpoint)
Satisfaction with current health condition OFF PPIs is reported as part of the GERD health-related quality of life questionnaire (GERD-HRQL), with 3 possible answers: satisfied, neutral or dissatisfied. 60 months post TIF, 54 months post Crossover.
Time frame: 60 months
Population: Overall Number of Participants Analyzed entered in Treatment arm includes all Control/crossover arm patients available for follow up. Control/crossover patients are at 54 month post-TIF follow up.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Satisfied With Their Current Health Condition (Secondary Endpoint) | 31 Participants |
| Control | Number of Participants Satisfied With Their Current Health Condition (Secondary Endpoint) | 0 Participants |
Number of Participants Undergoing Reoperation Post-TIF (Secondary Endpoint)
Reoperations completed post TIF by the end of 60 month (54 months post Crossover) follow up. These included 2 Laparoscopic Nissen fundoplications and 1 Dor fundoplication, completed without difficulty. This number includes the two reoperations reported and included in number of participants analyzed, at 36 month follow up.
Time frame: 60 months
Population: All participants are included in the Overall Number of Participants Analyzed, under the Treatment arm section; reported as 1 cohort.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants Undergoing Reoperation Post-TIF (Secondary Endpoint) | 3 Participants |
| Control | Number of Participants Undergoing Reoperation Post-TIF (Secondary Endpoint) | 0 Participants |
Number of Participants With Complete Discontinuation of Daily PPI Therapy (Secondary Endpoint)
Number of patients reporting complete cessation of daily PPI therapy at 36 months post TIF and 30 months post Crossover TIF combined into a single cohort.
Time frame: 36 months
Population: Treatment and Control/Crossover patients are reported as a single cohort at this follow-up period.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Complete Discontinuation of Daily PPI Therapy (Secondary Endpoint) | 37 Participants |
| Control | Number of Participants With Complete Discontinuation of Daily PPI Therapy (Secondary Endpoint) | 0 Participants |
Number of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire
Elimination of daily bothersome heartburn as measured by GERD-HRQL (Gastro Esophageal Reflux Disease - Health-Related Quality of Life) questionnaire. GERD-HRQL is a validated questionnaire used to assess typical GERD symptoms by measuring 10 items on the visual analog scale ranging from 0 (no symptoms) to 5 (worst symptoms). A higher total GERD-HRQL score (range from 0 to 50) indicates more severe GERD. Note Control Arm patients are assessed while on standard daily dose of PPIs.
Time frame: 6 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire | 28 Participants |
| Control | Number of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire | 2 Participants |
Number of Participants With Elimination of Daily Troublesome Regurgitation (Primary Endpoint)
Number of patients reporting elimination of troublesome regurgitation using the validated Reflux Disease Questionnaire (RDQ), a 12-item questionnaire to assess frequency and severity of heartburn (4 items measure frequency/severity of pain and burning behind breastbone), regurgitation (4 items measuring frequency/severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency/severity of pain or burning in upper stomach). 9 response options range from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity. Each patient's score is calculated as the mean of item responses, with higher scores indicating more frequent and/or severe symptoms. Cohort of patients reported at this time period includes Treatment arm patients and Control/Crossover patients combined as 1 group. Control/Crossover patients included in cohort are at 54 months post TIF.
Time frame: 60 months
Population: There were 44 patients available for follow up at 5 years post TIF. 43 were analyzed for regurgitation.~Treatment and Control/Crossover patients were combined into one cohort, shown in Treatment arm. Control arm value is 0. Control/crossover patients are at 54 months post TIF.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Elimination of Daily Troublesome Regurgitation (Primary Endpoint) | 37 Participants |
| Control | Number of Participants With Elimination of Daily Troublesome Regurgitation (Primary Endpoint) | 0 Participants |
Number of Participants With GERD Symptom Control Following TIF and Crossover TIF, Assessed by Validated Questionnaires (Primary Endpoint)
Assess number of patients reporting global elimination of troublesome regurgitation and atypical symptoms using Reflux Disease Questionnaire (RDQ), a 12-item questionnaire to assess frequency and severity of heartburn (4 items measure frequency/severity of pain and burning behind breastbone), regurgitation (4 items measure frequency/severity of acid taste in mouth and movement of material upward from stomach), and dyspeptic complaints (4 items measure frequency and severity of pain or burning in upper stomach). Responses from 0 (not present) to 5 (daily) for frequency and 0 (not present) to 5 (severe) for severity, and Reflux Symptom Index (RSI), a 9-item questionnaire to assess atypical symptoms: hoarseness, throat clearing, excess throat mucus, dysphagia, cough. Scale for each item ranges from 0 (no problem) to 5 (severe), with max score of 45, normality threshold of ≤13. Scores calculated as mean of item responses with higher scores indicating more severe or frequent symptoms.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With GERD Symptom Control Following TIF and Crossover TIF, Assessed by Validated Questionnaires (Primary Endpoint) | 30 Participants |
| Control | Number of Participants With GERD Symptom Control Following TIF and Crossover TIF, Assessed by Validated Questionnaires (Primary Endpoint) | 13 Participants |
Number of Participants With Healed Esophagitis (Secondary Endpoint)
Assessment of number of participants reporting healed esophagitis after TIF using EGD and LA grading system, LA grade A, B, C, D, with A meaning least severe esophagitis. No grade means normal. 30 months post TIF for Crossover patients.
Time frame: 36 months
Population: Control/Crossover patients have been added to the Treatment arm patients to make one combined cohort of patients. Control/Crossover patients are at 30 months post TIF.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Healed Esophagitis (Secondary Endpoint) | 19 Participants |
| Control | Number of Participants With Healed Esophagitis (Secondary Endpoint) | 0 Participants |
Number of Participants With Healing of Esophagitis After TIF and Crossover TIF (Secondary Endpoint)
Assessment of number of participants reporting healed esophagitis after TIF using EGD and LA grading system. Treatment arm patients assessed at 12 month post TIF and Control arm patients are at 6 month post Crossover TIF (12 month post randomization). LA grading A, B, C, D, with A the least severe esophagitis. No grade listed is Normal. Grade D is an exclusion criteria.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Healing of Esophagitis After TIF and Crossover TIF (Secondary Endpoint) | 19 Participants |
| Control | Number of Participants With Healing of Esophagitis After TIF and Crossover TIF (Secondary Endpoint) | 11 Participants |
Number of Participants With Normal Esophageal Acid Exposure Assessed Post-TIF and Post-Crossover TIF (Secondary Endpoint)
Assessment of esophageal acid exposure with normal defined as pH\<4 in less than 5.3% total time exposure, using 48hr pH metry, with patients off PPIs for at least 7 days.
Time frame: 12 months
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With Normal Esophageal Acid Exposure Assessed Post-TIF and Post-Crossover TIF (Secondary Endpoint) | 17 Participants |
| Control | Number of Participants With Normal Esophageal Acid Exposure Assessed Post-TIF and Post-Crossover TIF (Secondary Endpoint) | 7 Participants |
Number of Participants With pH Normalization at 3-year Follow-up (Secondary Endpoint)
Assessment of esophageal acid exposure with normal defined as pH\<4 in less than 5.3% total time exposure, using 48hr pH metry, with patients off PPIs for at least 7 days. Note that patients originally in the Control/Crossover arm are at 30 months post TIF at this follow up period. Treatment and Control/Crossover patients are reported as a single cohort.
Time frame: 36 months
Population: All patients are reported as one cohort, under the Treatment arm. Control arm number of participants analyzed will be 0. All are included in Overall Number in Treatment arm section.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Participants With pH Normalization at 3-year Follow-up (Secondary Endpoint) | 16 Participants |
| Control | Number of Participants With pH Normalization at 3-year Follow-up (Secondary Endpoint) | 0 Participants |
Number of Patients Reporting Complete Cessation of Daily PPIs (Secondary Endpoint)
Number of participants with complete cessation of daily PPI use, self-reported by patient at 60 month follow-up. (54 months for Control/crossover patients). Note: all patients were on daily PPIs at screening (100%).
Time frame: 60 months
Population: One cohort of patients entered as Overall number of Participants Analyzed, in Treatment arm section. Includes all available Control/crossover patients at 54 month post TIF follow up.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Patients Reporting Complete Cessation of Daily PPIs (Secondary Endpoint) | 20 Participants |
| Control | Number of Patients Reporting Complete Cessation of Daily PPIs (Secondary Endpoint) | 0 Participants |
Number of Patients Satisfied With Their Current Health Condition (Secondary Endpoint)
Satisfaction with current health condition OFF PPIs is reported as part of the GERD health-related quality of life questionnaire (GERD-HRQL), with 3 possible answers: satisfied, neutral or dissatisfied.
Time frame: 36 months
Population: All patients included in one cohort, entered in the treatment arm section
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Patients Satisfied With Their Current Health Condition (Secondary Endpoint) | 35 Participants |
| Control | Number of Patients Satisfied With Their Current Health Condition (Secondary Endpoint) | 0 Participants |
Number of Patients With Elimination of Troublesome Atypical GERD Symptoms (Primary Endpoint)
Number of patients with elimination of troublesome GERD symptoms using Reflux Symptom Index (RSI), a 9-item validated questionnaire to measure atypical GERD symptoms such as hoarseness, throat clearing, excess throat mucus, dysphagia, and cough. The scale for each individual item ranges from 0 (no problem) to 5 (severe problem), with a maximum total score of 45 and a normality threshold of ≤13. The lower the score, the better the outcome.
Time frame: 60 months
Population: Control/crossover patients are included in overall number of patients analyzed and entered in Treatment arm section to make one cohort. Crossover patients are at 54 month post TIF follow up.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Patients With Elimination of Troublesome Atypical GERD Symptoms (Primary Endpoint) | 31 Participants |
| Control | Number of Patients With Elimination of Troublesome Atypical GERD Symptoms (Primary Endpoint) | 0 Participants |
Number of Study Participants Reporting Elimination of All Troublesome Atypical GERD Symptoms Assessed by Reflux Symptom Index (RSI) (Primary Endpoint)
Assessment of atypical GERD symptoms (symptoms other than heartburn) using validated Reflux Symptom Index (RSI), a 9 item questionnaire with a 0-5 score for each, for a total of 45, and a normality threshold of ≤13. The lower the score the better the outcome. Control/Crossover arm patients included in this cohort are at 30 months post TIF.
Time frame: 36 months
Population: Control/Crossover arm patients are included in the overall number of participants analyzed under the Treatment arm section, so Control arm number will be 0.
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Treatment Arm | Number of Study Participants Reporting Elimination of All Troublesome Atypical GERD Symptoms Assessed by Reflux Symptom Index (RSI) (Primary Endpoint) | 42 Participants |
| Control | Number of Study Participants Reporting Elimination of All Troublesome Atypical GERD Symptoms Assessed by Reflux Symptom Index (RSI) (Primary Endpoint) | 0 Participants |