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The EndoGastric Solutions TEMPO Trial

Transoral Incisionless Fundoplication (TIF) Versus Medical Proton Pump Inhibitor (PPI) Management of Refractory Gastroesophageal Reflux Disease (GERD) Symptoms

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01647958
Acronym
TEMPO
Enrollment
65
Registered
2012-07-24
Start date
2012-06-01
Completion date
2017-12-01
Last updated
2020-11-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastroesophageal Reflux Disease (GERD)

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

DEVICEEsophyX System with SerosaFuse fasteners

Transoral Incisionless Fundoplication (TIF)/Transoral incisionless esophago-gastric fundoplication using the EsophyX System with SerosaFuse fasteners

DRUGPPI

Control Arm participants will take maximum standard dose of PPI during Initial Study period

Sponsors

EndoGastric Solutions
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
Yes

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

MeasureTime frameDescription
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 monthsElimination 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 Assessment6 monthsElimination 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

MeasureTime frameDescription
Number of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation6 MonthsElimination 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 Metry6 MonthsAssessment 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) Grading6 monthsEsophagitis 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

MeasureTime frameDescription
Number of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire6 monthsElimination 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

ArmCount
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
Total60

Withdrawals & dropouts

PeriodReasonFG000FG001
Continuation Phasetreatment received during Overall Study390
Extended Follow-up PhaseLost to Follow-up80
Initial StudyLost to Follow-up23

Baseline characteristics

CharacteristicControlTreatment ArmTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants5 Participants5 Participants
Age, Categorical
Between 18 and 65 years
21 Participants34 Participants55 Participants
Age, Continuous50.1 years54.8 years53.16 years
Region of Enrollment
United States
21 Participants39 Participants60 Participants
Sex: Female, Male
Female
13 Participants20 Participants33 Participants
Sex: Female, Male
Male
8 Participants19 Participants27 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 410 / 24
other
Total, other adverse events
2 / 410 / 24
serious
Total, serious adverse events
0 / 410 / 24

Outcome results

Primary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants Reporting Elimination of Daily Troublesome Regurgitation Using a Validated Questionnaire for Assessment29 Participants
ControlNumber of Participants Reporting Elimination of Daily Troublesome Regurgitation Using a Validated Questionnaire for Assessment9 Participants
Primary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber 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
ControlNumber 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
Secondary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Complete Healing or Reduction of Reflux Esophagitis, Assessed by EGD Using Los Angeles (LA) Grading18 Participants
ControlNumber of Participants With Complete Healing or Reduction of Reflux Esophagitis, Assessed by EGD Using Los Angeles (LA) Grading5 Participants
Secondary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation35 Participants
ControlNumber of Participants With Complete PPI Discontinuation Assessed Using Validated Questionnaires and Participant-reported Discontinuation0 Participants
Secondary

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Normalization of Esophageal Acid Exposure Assessed Using 48-hour pH Metry21 Participants
ControlNumber of Participants With Normalization of Esophageal Acid Exposure Assessed Using 48-hour pH Metry11 Participants
Post Hoc

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants Completely Off Daily PPIs Following TIF and Crossover TIF (Secondary Endpoint)32 Participants
ControlNumber of Participants Completely Off Daily PPIs Following TIF and Crossover TIF (Secondary Endpoint)15 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint)37 Participants
ControlNumber of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint)0 Participants
Post Hoc

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint)28 Participants
ControlNumber of Participants Reporting Elimination of Troublesome Regurgitation Assessed Using a Validated Questionnaire (Primary Endpoint)6 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants Satisfied With Their Current Health Condition (Secondary Endpoint)31 Participants
ControlNumber of Participants Satisfied With Their Current Health Condition (Secondary Endpoint)0 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants Undergoing Reoperation Post-TIF (Secondary Endpoint)3 Participants
ControlNumber of Participants Undergoing Reoperation Post-TIF (Secondary Endpoint)0 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Complete Discontinuation of Daily PPI Therapy (Secondary Endpoint)37 Participants
ControlNumber of Participants With Complete Discontinuation of Daily PPI Therapy (Secondary Endpoint)0 Participants
Other Pre-specified

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire28 Participants
ControlNumber of Participants With Elimination of Daily Troublesome Heartburn Assessed Using a Validated Questionnaire2 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Elimination of Daily Troublesome Regurgitation (Primary Endpoint)37 Participants
ControlNumber of Participants With Elimination of Daily Troublesome Regurgitation (Primary Endpoint)0 Participants
Post Hoc

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With GERD Symptom Control Following TIF and Crossover TIF, Assessed by Validated Questionnaires (Primary Endpoint)30 Participants
ControlNumber of Participants With GERD Symptom Control Following TIF and Crossover TIF, Assessed by Validated Questionnaires (Primary Endpoint)13 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Healed Esophagitis (Secondary Endpoint)19 Participants
ControlNumber of Participants With Healed Esophagitis (Secondary Endpoint)0 Participants
Post Hoc

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Healing of Esophagitis After TIF and Crossover TIF (Secondary Endpoint)19 Participants
ControlNumber of Participants With Healing of Esophagitis After TIF and Crossover TIF (Secondary Endpoint)11 Participants
Post Hoc

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With Normal Esophageal Acid Exposure Assessed Post-TIF and Post-Crossover TIF (Secondary Endpoint)17 Participants
ControlNumber of Participants With Normal Esophageal Acid Exposure Assessed Post-TIF and Post-Crossover TIF (Secondary Endpoint)7 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Participants With pH Normalization at 3-year Follow-up (Secondary Endpoint)16 Participants
ControlNumber of Participants With pH Normalization at 3-year Follow-up (Secondary Endpoint)0 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Patients Reporting Complete Cessation of Daily PPIs (Secondary Endpoint)20 Participants
ControlNumber of Patients Reporting Complete Cessation of Daily PPIs (Secondary Endpoint)0 Participants
Post Hoc

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

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Patients Satisfied With Their Current Health Condition (Secondary Endpoint)35 Participants
ControlNumber of Patients Satisfied With Their Current Health Condition (Secondary Endpoint)0 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Patients With Elimination of Troublesome Atypical GERD Symptoms (Primary Endpoint)31 Participants
ControlNumber of Patients With Elimination of Troublesome Atypical GERD Symptoms (Primary Endpoint)0 Participants
Post Hoc

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.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Study Participants Reporting Elimination of All Troublesome Atypical GERD Symptoms Assessed by Reflux Symptom Index (RSI) (Primary Endpoint)42 Participants
ControlNumber of Study Participants Reporting Elimination of All Troublesome Atypical GERD Symptoms Assessed by Reflux Symptom Index (RSI) (Primary Endpoint)0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026