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Gastroenterology. 2015 Aug;149(2):340-9.e2. doi: 10.1053/j.gastro.2015.04.020. Epub 2015 Apr 25.

Effect of Amitriptyline and Escitalopram on Functional Dyspepsia: A Multicenter, Randomized Controlled Study.

Author information

1
Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota; Faculty of Health and Medicine, University of Newcastle, Callaghan, New South Wales, Australia. Electronic address: Nicholas.Talley@newcastle.edu.au.
2
Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota.
3
Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida.
4
Gastroenterology, Northwestern University, Chicago, Illinois.
5
Gastroenterology and Hepatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire.
6
Gastroenterology and Hepatology, Mayo Clinic, Scottsdale, Arizona.
7
Gastroenterology, St Louis University, St Louis, Missouri.
8
Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas.
9
Gastroenterology, McMaster University, Hamilton, Ontario, Canada.
10
Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland.
11
Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota.

Abstract

BACKGROUND & AIMS:

Antidepressants are frequently prescribed to treat functional dyspepsia (FD), a common disorder characterized by upper abdominal symptoms, including discomfort or postprandial fullness. However, there is little evidence of the efficacy of these drugs in patients with FD. We performed a randomized, double-blind, placebo-controlled trial to evaluate the effects of antidepressant therapy on symptoms, gastric emptying (GE), and meal-induced satiety in patients with FD.

METHODS:

We performed a study at 8 North American sites of patients who met the Rome II criteria for FD and did not have depression or use antidepressants. Patients (n = 292; 44 ± 15 years old, 75% were female, 70% with dysmotility-like FD, and 30% with ulcer-like FD) were randomly assigned to groups given placebo, 50 mg amitriptyline, or 10 mg escitalopram for 10 weeks. The primary end point was adequate relief of FD symptoms for ≥5 weeks of the last 10 weeks (of 12). Secondary end points included GE time, maximum tolerated volume in Nutrient Drink Test, and FD-related quality of life.

RESULTS:

An adequate relief response was reported by 39 subjects given placebo (40%), 51 given amitriptyline (53%), and 37 given escitalopram (38%) (P = .05, after treatment, adjusted for baseline balancing factors including all subjects). Subjects with ulcer-like FD given amitriptyline were >3-fold more likely to report adequate relief than those given placebo (odds ratio = 3.1; 95% confidence interval: 1.1-9.0). Neither amitriptyline nor escitalopram appeared to affect GE or meal-induced satiety after the 10-week period in any group. Subjects with delayed GE were less likely to report adequate relief than subjects with normal GE (odds ratio = 0.4; 95% confidence interval: 0.2-0.8). Both antidepressants improved overall quality of life.

CONCLUSIONS:

Amitriptyline, but not escitalopram, appears to benefit some patients with FD, particularly those with ulcer-like (painful) FD. Patients with delayed GE do not respond to these drugs. ClinicalTrials.gov ID: NCT00248651.

KEYWORDS:

Abdominal Pain; Antidepressant; Functional Dyspepsia; Functional Gastrointestinal Disorder

PMID:
25921377
PMCID:
PMC4516571
DOI:
10.1053/j.gastro.2015.04.020
[Indexed for MEDLINE]
Free PMC Article

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