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Proton pump inhibitors and traditional nonsteroidal anti-inflammatory drugs and the risk of acute interstitial nephritis and acute kidney injury.

Abstract：

PURPOSE:This study aims to examine the associations between proton pump inhibitors (PPIs), traditional nonsteroidal anti-inflammatory drugs (tNSAIDs), PPI + tNSAID co-exposure, and the development of the following: (i) acute interstitial nephritis (AIN), a specific kidney injury often attributed to these drugs, and (ii) acute kidney injury (AKI), a general kidney injury encompassing AIN. METHODS:Two retrospective case-control studies were conducted, one for each outcome, within the General Practice Research Database. Cases were diagnostic-coded AIN (primary outcome) or AKI (secondary outcome) events. Controls were matched on age, sex, and general practitioner practice. Exposures were defined by the presence/absence of the following mutually exclusive therapies on the index date: (i) PPI alone; (ii) tNSAID alone; (iii) PPI + tNSAID; or (iv) neither PPI nor tNSAID (referent). RESULTS:Sixty-eight AIN cases and 3347 controls were identified. The adjusted odds ratios (ORs) for PPI and tNSAID exposures alone were 3.20 (0.80-12.79) and 1.90 (0.65-5.51), respectively. Numerous sensitivity analyses produced adjusted ORs for AIN between 3.0 and 7.7, and 1.6 and 1.9, respectively. We identified 27,982 AKI cases and 1,323,850 controls. The adjusted ORs for PPI alone, tNSAID alone, and PPI + tNSAID exposures were 1.05 (0.97-1.14), 1.31 (1.25-1.37), and 1.33 (1.07-1.64), respectively. Numerous sensitivity analyses produced adjusted ORs for AKI between 1.0 and 1.1, 1.1 and 1.3, and 1.3 and 1.4, respectively. CONCLUSIONS:Proton pump inhibitor exposure may increase the odds of AIN, but this result was not definitive and should be confirmed in a dataset with more AIN cases to allow for increased statistical precision. tNSAIDs, yet not PPIs, were associated with a significantly increased odds of AKI.

journal_name

Pharmacoepidemiol Drug Saf

journal_title

Pharmacoepidemiology and drug safety

authors

Leonard CE,Freeman CP,Newcomb CW,Reese PP,Herlim M,Bilker WB,Hennessy S,Strom BL

doi

10.1002/pds.3329

subject

Has Abstract

pub_date

2012-11-01 00:00:00

pages

1155-72

issue

eissn

1053-8569

issn

1099-1557

journal_volume

pub_type

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Proton pump inhibitors and traditional nonsteroidal anti-inflammatory drugs and the risk of acute interstitial nephritis and acute kidney injury.