Meta‐analysis: incidence of endoscopic gastric and duodenal ulcers in placebo arms of randomized placebo‐controlled NSAID trials

Summary Background  The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. Aim  To investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades. Methods  Randomized placebo‐controlled trials of oral NSAIDs...

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Published inAlimentary pharmacology & therapeutics Vol. 30; no. 3; pp. 197 - 209
Main Authors YUAN, Y.‐H., WANG, C., YUAN, Y., HUNT, R. H.
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.08.2009
Blackwell
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ISSN0269-2813
1365-2036
1365-2036
DOI10.1111/j.1365-2036.2009.04038.x

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Abstract Summary Background  The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. Aim  To investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades. Methods  Randomized placebo‐controlled trials of oral NSAIDs from 1975 to 2006 were systematically reviewed. The pooled incidence of GDU in placebo arms was calculated and compared. Meta‐regression was used to identify risk factors related to the incidence of the placebo ulcer at the study level. Results  Thirty‐six studies met inclusion criteria (duration of 6.5 days to 24 weeks). In total, 3.29% GDUs were reported in 36 placebo arms. The incidence of GDU in placebo arms was 0, 4.20% and 3.03% in the studies from 1975–1989, 1990–1999 and 2000–2006 respectively (P > 0.05). Eligible subjects with previous GI events and eligible subjects on co‐therapy with low‐lose aspirin/corticosteroids were associated with the increase in placebo ulcer incidence after adjusting for other factors. Conclusions  The incidence of GDU in placebo arms has not changed significantly over the last three decades, although has decreased in the past 10 years. Studies show that previous GI events and co‐therapy with low‐dose aspirin/corticosteroids were associated with increasing GDU in placebo arms.
AbstractList The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. To investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades. Randomized placebo-controlled trials of oral NSAIDs from 1975 to 2006 were systematically reviewed. The pooled incidence of GDU in placebo arms was calculated and compared. Meta-regression was used to identify risk factors related to the incidence of the placebo ulcer at the study level. Thirty-six studies met inclusion criteria (duration of 6.5 days to 24 weeks). In total, 3.29% GDUs were reported in 36 placebo arms. The incidence of GDU in placebo arms was 0, 4.20% and 3.03% in the studies from 1975-1989, 1990-1999 and 2000-2006 respectively (P > 0.05). Eligible subjects with previous GI events and eligible subjects on co-therapy with low-lose aspirin/corticosteroids were associated with the increase in placebo ulcer incidence after adjusting for other factors. The incidence of GDU in placebo arms has not changed significantly over the last three decades, although has decreased in the past 10 years. Studies show that previous GI events and co-therapy with low-dose aspirin/corticosteroids were associated with increasing GDU in placebo arms.
Summary Background  The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. Aim  To investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades. Methods  Randomized placebo‐controlled trials of oral NSAIDs from 1975 to 2006 were systematically reviewed. The pooled incidence of GDU in placebo arms was calculated and compared. Meta‐regression was used to identify risk factors related to the incidence of the placebo ulcer at the study level. Results  Thirty‐six studies met inclusion criteria (duration of 6.5 days to 24 weeks). In total, 3.29% GDUs were reported in 36 placebo arms. The incidence of GDU in placebo arms was 0, 4.20% and 3.03% in the studies from 1975–1989, 1990–1999 and 2000–2006 respectively (P > 0.05). Eligible subjects with previous GI events and eligible subjects on co‐therapy with low‐lose aspirin/corticosteroids were associated with the increase in placebo ulcer incidence after adjusting for other factors. Conclusions  The incidence of GDU in placebo arms has not changed significantly over the last three decades, although has decreased in the past 10 years. Studies show that previous GI events and co‐therapy with low‐dose aspirin/corticosteroids were associated with increasing GDU in placebo arms.
The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials.BACKGROUNDThe safety of NSAIDs is often evaluated by comparison with placebo in clinical trials.To investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades.AIMTo investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades.Randomized placebo-controlled trials of oral NSAIDs from 1975 to 2006 were systematically reviewed. The pooled incidence of GDU in placebo arms was calculated and compared. Meta-regression was used to identify risk factors related to the incidence of the placebo ulcer at the study level.METHODSRandomized placebo-controlled trials of oral NSAIDs from 1975 to 2006 were systematically reviewed. The pooled incidence of GDU in placebo arms was calculated and compared. Meta-regression was used to identify risk factors related to the incidence of the placebo ulcer at the study level.Thirty-six studies met inclusion criteria (duration of 6.5 days to 24 weeks). In total, 3.29% GDUs were reported in 36 placebo arms. The incidence of GDU in placebo arms was 0, 4.20% and 3.03% in the studies from 1975-1989, 1990-1999 and 2000-2006 respectively (P > 0.05). Eligible subjects with previous GI events and eligible subjects on co-therapy with low-lose aspirin/corticosteroids were associated with the increase in placebo ulcer incidence after adjusting for other factors.RESULTSThirty-six studies met inclusion criteria (duration of 6.5 days to 24 weeks). In total, 3.29% GDUs were reported in 36 placebo arms. The incidence of GDU in placebo arms was 0, 4.20% and 3.03% in the studies from 1975-1989, 1990-1999 and 2000-2006 respectively (P > 0.05). Eligible subjects with previous GI events and eligible subjects on co-therapy with low-lose aspirin/corticosteroids were associated with the increase in placebo ulcer incidence after adjusting for other factors.The incidence of GDU in placebo arms has not changed significantly over the last three decades, although has decreased in the past 10 years. Studies show that previous GI events and co-therapy with low-dose aspirin/corticosteroids were associated with increasing GDU in placebo arms.CONCLUSIONSThe incidence of GDU in placebo arms has not changed significantly over the last three decades, although has decreased in the past 10 years. Studies show that previous GI events and co-therapy with low-dose aspirin/corticosteroids were associated with increasing GDU in placebo arms.
Background  The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. Aim  To investigate the incidence of gastric and duodenal ulcers (GDU) in placebo arms in NSAID trials over the last three decades. Methods  Randomized placebo‐controlled trials of oral NSAIDs from 1975 to 2006 were systematically reviewed. The pooled incidence of GDU in placebo arms was calculated and compared. Meta‐regression was used to identify risk factors related to the incidence of the placebo ulcer at the study level. Results  Thirty‐six studies met inclusion criteria (duration of 6.5 days to 24 weeks). In total, 3.29% GDUs were reported in 36 placebo arms. The incidence of GDU in placebo arms was 0, 4.20% and 3.03% in the studies from 1975–1989, 1990–1999 and 2000–2006 respectively ( P  > 0.05). Eligible subjects with previous GI events and eligible subjects on co‐therapy with low‐lose aspirin/corticosteroids were associated with the increase in placebo ulcer incidence after adjusting for other factors. Conclusions  The incidence of GDU in placebo arms has not changed significantly over the last three decades, although has decreased in the past 10 years. Studies show that previous GI events and co‐therapy with low‐dose aspirin/corticosteroids were associated with increasing GDU in placebo arms.
Author WANG, C.
HUNT, R. H.
YUAN, Y.‐H.
YUAN, Y.
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Issue 3
Keywords Duodenal ulcer
Gastric ulcer
Epidemiology
Incidence
Metaanalysis
Non steroidal antiinflammatory agent
Randomization
Placebo
Digestive diseases
Intestinal disease
Clinical trial
Endoscopy
Arm
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e_1_2_6_44_2
e_1_2_6_67_2
e_1_2_6_25_2
e_1_2_6_46_2
19807724 - Aliment Pharmacol Ther. 2009 Nov 1;30(9):955-7; author reply 957-60
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Snippet Summary Background  The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. Aim  To investigate the incidence of gastric and...
Background  The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. Aim  To investigate the incidence of gastric and duodenal...
The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials. To investigate the incidence of gastric and duodenal ulcers (GDU) in...
The safety of NSAIDs is often evaluated by comparison with placebo in clinical trials.BACKGROUNDThe safety of NSAIDs is often evaluated by comparison with...
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SubjectTerms Adolescent
Adult
Aged
Aged, 80 and over
Anti-Inflammatory Agents, Non-Steroidal - adverse effects
Anti-Ulcer Agents - adverse effects
Biological and medical sciences
Digestive system
Double-Blind Method
Duodenal Ulcer - chemically induced
Duodenal Ulcer - epidemiology
Endoscopy
Female
Gastroenterology. Liver. Pancreas. Abdomen
Humans
Incidence
Male
Medical sciences
Middle Aged
Other diseases. Semiology
Pharmacology. Drug treatments
Randomized Controlled Trials as Topic
Risk Factors
Stomach Ulcer - chemically induced
Stomach Ulcer - epidemiology
Stomach. Duodenum. Small intestine. Colon. Rectum. Anus
Young Adult
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Title Meta‐analysis: incidence of endoscopic gastric and duodenal ulcers in placebo arms of randomized placebo‐controlled NSAID trials
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