Effect of Pantoprazole 40mg Daily vs Placebo on Power Spectral Analysis of the Sleep EEG of Patients With GERD.
|Gastroesophageal Reflux Disease||Drug: Pantoprazole Drug: placebo||Phase 2 Phase 3|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
|Official Title:||The Effect Of Pantoprazole 40 mg Once Daily Versus Placebo On The Power Spectral Analysis Of The Sleep Electroencephalogram (EEG) Of Patients With Gastroesophageal Reflux Disease (GERD)|
- Symptom control after 4 weeks of treatment. [ Time Frame: April 2008 to July 2010 ]To determine if treatment with pantoprazole 40 mg daily vs placebo improves sleep quality in patients with GERD.
- Effect of Pantoprazole 40 mg Daily vs Placebo on the Power Spectral Analysis of the Sleep Electroencephalogram of Patients With GERD. [ Time Frame: April 2008-July 2010 ]To determine if treatment with pantoprazole 40 mg once daily vs placebo improves sleep outcome in patients with GERD using spectral analysis of sleep electroencephalogram.
|Study Start Date:||April 2008|
|Study Completion Date:||July 2010|
|Primary Completion Date:||July 2010 (Final data collection date for primary outcome measure)|
Active Comparator: Pantoprazole
40 mg once daily for four weeks improves sleep quality in patients with GERD
40 mg once daily for 4 weeks
Other Names:Drug: Pantoprazole
40 mg once daily improves sleep quality in patients with GERD.
Placebo Comparator: placebo
To determine if treatment with pantoprazole 40 mg once daily vs placebo improves sleep outcome in patients with GERD.
40 mg once daily for 4 weeks
Other Name: sugar pill
It appears that the presence of intraesophageal stimuli alone may not be sufficient to elicit symptoms of heartburn. Most acid reflux events (>80%-90%) do not reach conscious level and thus are not perceived. It is yet to be determined what factors enhance our perception of esophageal stimuli and may help to elevate them to the conscious level. In recent years, central and peripheral factors that may enhance our perception of intraesophageal stimuli have been evaluated. Intraduodenal fat infusion was shown to enhance perception of intraesophageal acid in patients with GERD. This study suggested that fat is an important modulator of postprandial GERD symptoms. Central factors, such as stress and psychological comorbidity, also appear to have an important role in symptom generation in patients with GERD, regardless if esophageal inflammation is present or absent.[5-8] Thus, by modulating brain-gut interactions, perception of pathological and probably physiological events in the esophagus of patients with GERD may be altered.
Poor sleep is a central factor that may enhance perception of intraesophageal stimuli and thus elevate them to the conscious level. Several studies have demonstrated that patients with fibromyalgia or irritable bowel syndrome report increased symptoms due to sleep abnormalities.[9, 10] Similar reports in patients with GERD are not available. A subset of patients with GERD experience nocturnal heartburn that may awaken them during the night. In others, despite lack of nocturnal symptoms, sleep abnormalities may occur due to acid reflux events. In both cases, GERD leads to poor sleep, and that in turn may enhance perception of intraesophageal stimuli, leading to reports of increased frequency and severity of perceived GERD symptoms. Thus, poor sleep may be a crucial factor in symptom generation and exacerbation of patients with GERD.
Recently, we have used a novel technique, power spectral analysis of the sleep electroencephalogram (EEG), to assess patients with heartburn and erosive esophagitis and those with heartburn but without erosive esophagitis. We were able to show that among heartburn patients with GERD, EEG spectral power during sleep is shifted towards higher frequencies as compared to heartburn patients without GERD despite similar sleep architecture.
Several recent therapeutic trials in GERD patients have failed to demonstrate improvement in polysomnographic studies despite improvement in GERD-related symptoms and subjective reports of sleep quality. Spectral analysis of the sleep EEG might be a more sensitive tool than polysomnographic study in assessing objective improvement of sleep in patients receiving antireflux treatment.
In summary, sleep disturbances in patients with GERD are poorly recognized and rarely elicited during clinic visits despite their significant impact on patients' quality of life and probably perception of disease severity. Several studies have demonstrated improvement of subjective reports of sleep quality in patients with GERD receiving antireflux treatment. However, the effect of potent antireflux therapy on objective sleep parameters has yet to be demonstrated.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00674245
|United States, Arizona|
|Southern Arizona VA Health Care System|
|Tucson, Arizona, United States, 85723|
|Principal Investigator:||Ronnie Fass, MD||Southern VA Health Care System|