The role of acid suppression in patients with endoscopy-negative reflux disease: the effect of treatment with esomeprazole or omeprazole.
BACKGROUND
Patients with endoscopy-negative reflux disease have reflux symptoms, mainly heartburn, but not mucosal breaks characteristic of erosive oesophagitis. Standard-dose proton pump inhibitors can provide symptom relief in endoscopy-negative reflux disease but the effect of greater acid suppression has not been studied.


OBJECTIVE
To test the hypothesis that esomeprazole produces heartburn resolution in a greater proportion of patients with ENRD than omeprazole.


METHODS
Three multi-centre randomized, controlled, double-blind, 4-week acute treatment studies were conducted in endoscopy-negative reflux disease patients. In study A (n = 1282), patients received either esomeprazole 40 mg, esomeprazole 20 mg or omeprazole 20 mg daily; in studies B (n = 693) and C (n = 670) patients received either esomeprazole 40 mg or omeprazole 20 mg (B), and esomeprazole 20 mg or omeprazole 20 mg (C), respectively.


RESULTS
Resolution of heartburn at 4 weeks (no heartburn symptoms during the last 7 days) was achieved in similar proportions of patients in each treatment arm in study A (esomeprazole 40 mg, 56.7%; esomeprazole 20 mg, 60.5%; omeprazole 20 mg, 58.1%), study B (esomeprazole 40 mg, 70.3%; omeprazole 20 mg, 67.9%) and study C (esomeprazole 20 mg, 61.9%; omeprazole 20 mg, 59.6%). There were no significant differences between treatment groups within each study.


CONCLUSIONS
More than 60% of endoscopy-negative reflux disease patients reported heartburn resolution but, after 4 weeks of therapy, these proportions did not differ significantly between treatments.
McMaster University Medical Centre, Ontario, Canada. talley.nicholas@mayo.edu
D
D
Armstrong
N J
NJ
Talley
K
K
Lauritsen
B
B
Moum
T
T
Lind
H
H
Tunturi-Hihnala
T
T
Venables
J
J
Green
M A
MA
Bigard
J
J
Mössner
O
O
Junghard
D000328:Adult; D000368:Aged; D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D064098:Esomeprazole; D005260:Female; D005744:Gastric Acid / Q000378:metabolism*; D005764:Gastroesophageal Reflux / Q000188:drug therapy*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D009853:Omeprazole / Q000627:therapeutic use*; D016896:Treatment Outcome
D000897:Anti-Ulcer Agents; D009853:Omeprazole; D064098:Esomeprazole