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Paz MFCJ, de Alencar MVOB, de Lima RMP, Sobral ALP, do Nascimento GTM, dos Reis CA, Coêlho MDPSDS, do Nascimento MLLB, Gomes Júnior AL, Machado KDC, de Menezes AAPM, de Lima RMT, de Oliveira Filho JWG, Dias ACS, dos Reis AC, da Mata AMOF, Machado SA, Sousa CDDC, da Silva FCC, Islam MT, de Castro e Sousa JM, Melo Cavalcante AADC. Pharmacological Effects and Toxicogenetic Impacts of Omeprazole: Genomic Instability and Cancer. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3457890. [PMID: 32308801 PMCID: PMC7146093 DOI: 10.1155/2020/3457890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 10/19/2019] [Accepted: 11/21/2019] [Indexed: 12/15/2022]
Abstract
Omeprazole (OME) is commonly used to treat gastrointestinal disorders. However, long-term use of OME can increase the risk of gastric cancer. We aimed to characterize the pharmacological effects of OME and to correlate its adverse effects and toxicogenetic risks to the genomic instability mechanisms and cancer-based on database reports. Thus, a search (till Aug 2019) was made in the PubMed, Scopus, and ScienceDirect with relevant keywords. Based on the study objective, we included 80 clinical reports, forty-six in vitro, and 76 in vivo studies. While controversial, the findings suggest that long-term use of OME (5 to 40 mg/kg) can induce genomic instability. On the other hand, OME-mediated protective effects are well reported and related to proton pump blockade and anti-inflammatory activity through an increase in gastric flow, anti-inflammatory markers (COX-2 and interleukins) and antiapoptotic markers (caspases and BCL-2), glycoprotein expression, and neutrophil infiltration reduction. The reported adverse and toxic effects, especially in clinical studies, were atrophic gastritis, cobalamin deficiencies, homeostasis disorders, polyp development, hepatotoxicity, cytotoxicity, and genotoxicity. This study highlights that OME may induce genomic instability and increase the risk of certain types of cancer. Therefore, adequate precautions should be taken, especially in its long-term therapeutic strategies and self-medication practices.
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Affiliation(s)
- Márcia Fernanda Correia Jardim Paz
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, PI, Brazil
- Laboratory of Genetic Toxicity, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, PI, Brazil
| | | | | | - André Luiz Pinho Sobral
- Laboratory of Genetic Toxicity, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, PI, Brazil
- University Hospital, Teresina, PI, Brazil
| | | | | | | | | | - Antonio Luiz Gomes Júnior
- Laboratory of Genetic Toxicity, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, PI, Brazil
- University Centre UNINOVAFAPI, Teresina, PI, Brazil
| | | | | | - Rosália Maria Torres de Lima
- Laboratory of Genetic Toxicity, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, PI, Brazil
| | | | - Ana Carolina Soares Dias
- Laboratory of Genetics and Molecular Biology, Federal University of Maranhão, São Luís, MA, Brazil
| | - Antonielly Campinho dos Reis
- Laboratory of Genetic Toxicity, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, PI, Brazil
| | | | | | | | - Felipe Cavalcanti Carneiro da Silva
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, PI, Brazil
- Department of Biological Sciences, Federal University of Piauí, Picos, PI, Brazil
| | - Muhammad Torequl Islam
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
| | | | - Ana Amélia de Carvalho Melo Cavalcante
- Postgraduate Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, PI, Brazil
- Laboratory of Genetic Toxicity, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, PI, Brazil
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Abstract
GOALS The goal of this study was to elucidate the most important predictors for elevation of gastrin in patients on long-term PPI therapy through analysis of data from 2 published studies in Icelandic patients with erosive GERD. BACKGROUND Gastrin elevation is a known but variable consequence of proton pump inhibitor (PPI) therapy. Concerns have been raised about the clinical importance of chronic PPI induced gastrin elevation. STUDY This cross-sectional analysis included patients with endoscopically verified erosive esophagitis receiving long-term PPI therapy. PPI exposure in dosage over weight (mg/kg) and dosage over body surface area (mg/m) was compared with fasting gastrin levels in two separate multiple linear regression models. Data was collected on age, gender, weight, H. pylori infection, smoking, PPI duration and type. RESULTS Overall data from 157 patients (78 females) were analyzed. Median serum gastrin levels were higher in females than males (92 vs. 60 pg/mL; P=0.001). Simple linear regression showed a correlation between serum gastrin levels and gender (P=0.0008) as well as PPI exposure in mg/kg (P=0.0001) and mg/m (P=0.0001). Multiple linear regression analysis showed that PPI exposure, both in mg/kg (β=0.95 [CI=0.4-1.5]; P=0.001) and mg/m (β=0.02 [CI=0.0-0.0]; P=0.0015) along with female gender (β=0.2 [CI=0.0-0.4]; P=0.02) predicted higher gastrin values. CONCLUSIONS Dosage and female gender seem to play an important role in the development of gastrin elevation on PPI therapy. A significant correlation was found between fasting serum gastrin and dosage of PPIs over weight and body surface area.
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Omeprazole promotes carcinogenesis of fore-stomach in mice with co-stimulation of nitrosamine. Oncotarget 2017; 8:70332-70344. [PMID: 29050283 PMCID: PMC5642558 DOI: 10.18632/oncotarget.19696] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 06/19/2017] [Indexed: 12/12/2022] Open
Abstract
Objectives To investigate if oral omeprazole application induces cancers of fore and glandular stomach in mice. Methods A total of 66 eligible male mice were randomly divided into 6 groups, which were treated with control reagent, low (6 mg/kg) and high dose omeprazole (30 mg/kg), N-methyl-N’-nitro-N-nitrosoguanidine (MNNG, 100 mg/L water), and MNNG plus low and high dose omeprazole, respectively. After 24 weeks, concentrations of acid phosphatase (ACP) and N-acetyl-β-D-glucosaminidase(NAG) in serum and spleen was examined, and p21 and mTOR levels in stomach were detected. Results The mouse spleen weight index was smaller in the omeprazole group than the control group, and in the MNNG plus omeprazole groups than the MNNG group. In the fore-stomach, more carcinomas were observed in the MNNG plus omeprazole groups than in the MNNG group. In the glandular stomach, there existed more atypical hyperplasia cases in the MNNG plus omeprazole groups than the MNNG-treated group, and one carcinoma was induced in the MNNG plus high dose omeprazole group. Omeprazole alone caused minor gastric pathological changes. Omeprazole treatment lowered both serum and spleen ACP and NAG levels in both the non-MNNG-treated and MNNG-treated subgroups. In fore-stomach, there existed decreased p21 and mTOR levels in the omeprazole-treated groups than in the control group, and in the MNNG plus omeprazole groups than the MNNG-treated group. Conclusion Omeprazole promotes carcinogenesis of the mouse fore-stomach but not the glandular stomach following treatment with MNNG. Lysosomal hydrolase activity was inhibited and some cancer-associated proteins was dysregulated, which requires further explorations.
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Iwakiri K, Kinoshita Y, Habu Y, Oshima T, Manabe N, Fujiwara Y, Nagahara A, Kawamura O, Iwakiri R, Ozawa S, Ashida K, Ohara S, Kashiwagi H, Adachi K, Higuchi K, Miwa H, Fujimoto K, Kusano M, Hoshihara Y, Kawano T, Haruma K, Hongo M, Sugano K, Watanabe M, Shimosegawa T. Evidence-based clinical practice guidelines for gastroesophageal reflux disease 2015. J Gastroenterol 2016; 51:751-67. [PMID: 27325300 DOI: 10.1007/s00535-016-1227-8] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 05/17/2016] [Indexed: 02/04/2023]
Abstract
As an increase in gastroesophageal reflux disease (GERD) has been reported in Japan, and public interest in GERD has been increasing, the Japanese Society of Gastroenterology published the Evidence-based Clinical Practice Guidelines for GERD (1st edition) in 2009. Six years have passed since its publication, and there have been a large number of reports in Japan concerning the epidemiology, pathophysiology, treatment, and Barrett's esophagus during this period. By incorporating the contents of these reports, the guidelines were completely revised, and a new edition was published in October 2015. The revised edition consists of eight items: epidemiology, pathophysiology, diagnosis, internal treatment, surgical treatment, esophagitis after surgery of the upper gastrointestinal tract, extraesophageal symptoms, and Barrett's esophagus. This paper summarizes these guidelines, particularly the parts related to the treatment for GERD. In the present revision, aggressive proton pump inhibitor (PPI) maintenance therapy is recommended for severe erosive GERD, and on-demand therapy or continuous maintenance therapy is recommended for mild erosive GERD or PPI-responsive non-erosive GERD. Moreover, PPI-resistant GERD (insufficient symptomatic improvement and/or esophageal mucosal break persisting despite the administration of PPI at a standard dose for 8 weeks) is defined, and a standard-dose PPI twice a day, change in PPI, change in the PPI timing of dosing, addition of a prokinetic drug, addition of rikkunshito (traditional Japanese herbal medicine), and addition of histamine H2-receptor antagonist are recommended for its treatment. If no improvement is observed even after these treatments, pathophysiological evaluation with esophageal impedance-pH monitoring or esophageal manometry at an expert facility for diseases of the esophagus is recommended.
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Affiliation(s)
- Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School Graduate School of Medicine, Sendagi 1-1-5, Bunkyo-ku, Tokyo, 113-8603, Japan. .,Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan.
| | - Yoshikazu Kinoshita
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Yasuki Habu
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Tadayuki Oshima
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Noriaki Manabe
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Yasuhiro Fujiwara
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Akihito Nagahara
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Osamu Kawamura
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Ryuichi Iwakiri
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Soji Ozawa
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Kiyoshi Ashida
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Shuichi Ohara
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Hideyuki Kashiwagi
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Kyoichi Adachi
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Kazuhide Higuchi
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Hiroto Miwa
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Kazuma Fujimoto
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Motoyasu Kusano
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Yoshio Hoshihara
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Tatsuyuki Kawano
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Ken Haruma
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Michio Hongo
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Kentaro Sugano
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Mamoru Watanabe
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
| | - Tooru Shimosegawa
- Guidelines Committee for Creating and Evaluating the "Evidence-based Clinical Practice Guidelines for Gastroesophageal Reflux Disease", the Japanese Society of Gastroenterology (JSGE), K-18 Building 8F, 8-9-13, Ginza, Chuo, Tokyo, 104-0061, Japan
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Lundell L, Vieth M, Gibson F, Nagy P, Kahrilas PJ. Systematic review: the effects of long-term proton pump inhibitor use on serum gastrin levels and gastric histology. Aliment Pharmacol Ther 2015; 42:649-63. [PMID: 26177572 DOI: 10.1111/apt.13324] [Citation(s) in RCA: 166] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 04/03/2015] [Accepted: 06/28/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Proton pump inhibitors (PPIs) have a well-established safety profile. However, concerns have been raised about a potential relationship between PPI-induced hypergastrinaemia and the development of enterochromaffin-like (ECL) cell hyperplasia, neuroendocrine tumours and gastric cancer during long-term therapy. AIM To review the effects of long-term PPI use on serum gastrin levels and gastric histopathology. METHODS A systematic literature search was conducted in PubMed on 21 April 2015 to identify studies reporting the effects of long-term (defined as >3 years) PPI use on gastrin levels and gastric histopathology. RESULTS A total of 16 studies (1920 patients) met the inclusion criteria. During long-term PPI therapy, mean gastrin levels rose to one to three times the upper limit of the normal range (~100 pg/mL), and an increased prevalence of ECL cell hyperplasia was observed (+7.8-52.0%). Helicobacter pylori-positive patients had a significantly increased risk of developing ECL linear/micronodular hyperplasia compared with H. pylori-negative patients [OR: 2.45 (95% CI: 1.47-4.10), P = 0.0006]; however, no evidence of neoplastic changes was found. The risk of corpus atrophy was markedly higher in H. pylori-positive patients than in H. pylori-negative patients [OR: 11.45 (95% CI: 6.25-20.99), P < 0.00001]. Not a single case of gastric adenocarcinoma was found. CONCLUSIONS Long-term PPI therapy induced moderate hypergastrinaemia in most patients and an increased prevalence of ECL cell hyperplasia. H. pylori-positive patients receiving long-term PPI therapy were exposed to a higher risk of corpus atrophy than H. pylori-negative patients. No neuroendocrine tumours or gastric cancers were found.
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Affiliation(s)
- L Lundell
- Gastrocentrum, Department of Clinical Sciences, Intervention and Technology (CLINTEC), Centre for Digestive Diseases, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - M Vieth
- Institut für Pathologie, Klinikum Bayreuth GmbH, Bayreuth, Germany
| | - F Gibson
- PharmaGenesis London, London, UK
| | - P Nagy
- Global Medicines Development, AstraZeneca R&D, Mölndal, Sweden
| | - P J Kahrilas
- Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Attwood SE, Ell C, Galmiche JP, Fiocca R, Hatlebakk JG, Hasselgren B, Långström G, Jahreskog M, Eklund S, Lind T, Lundell L. Long-term safety of proton pump inhibitor therapy assessed under controlled, randomised clinical trial conditions: data from the SOPRAN and LOTUS studies. Aliment Pharmacol Ther 2015; 41:1162-74. [PMID: 25858519 DOI: 10.1111/apt.13194] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 10/17/2014] [Accepted: 03/19/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Control of chronic gastro-oesophageal reflux disease may be achieved either by anti-reflux surgery (ARS) or by long-term medical therapy with proton pump inhibitors (PPIs). The primary efficacy results of the SOPRAN study, comparing long-term omeprazole use with open ARS, and the LOTUS study, comparing long-term esomeprazole use with laparoscopic ARS, have been reported. A secondary objective of these studies was to address the long-term safety of these respective therapeutic strategies and thereby provide a valid scientific platform for assessing long-term PPI safety. AIM To assess the safety of long-term PPI therapy with omeprazole and esomeprazole through analyses of data from the randomised SOPRAN and LOTUS studies. METHODS Safety data were collected from patients during the 12-year period of the SOPRAN study (n = 298) and the 5-year period of the LOTUS study (n = 514). Reported serious adverse events (SAEs) and changes in laboratory variables were analysed. RESULTS Across both studies, SAEs were reported at a similar frequency in the PPI and ARS treatment groups. Taking the time frames into consideration, the number of fatal SAEs in the two studies was low in both treatment groups. Laboratory results, including routine haematology and tests for liver enzymes, electrolytes, vitamin D, vitamin B12 , folate and homocysteine, showed no clinically relevant changes over time. As expected, gastrin and chromogranin A were elevated in the PPI groups, with the greatest increases observed in the first year. CONCLUSION No major safety concerns arose during 5-12 years of continuous PPI therapy. (ClinicalTrials.gov: NCT00251927 and NCT00256737).
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Affiliation(s)
- S E Attwood
- North Tyneside General Hospital, North Shields, UK
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Shimura S, Hamamoto N, Yoshino N, Kushiyama Y, Fujishiro H, Komazawa Y, Furuta K, Ishihara S, Adachi K, Kinoshita Y. Diarrhea caused by proton pump inhibitor administration: comparisons among lansoprazole, rabeprazole, and omeprazole. Curr Ther Res Clin Exp 2014; 73:112-20. [PMID: 24648598 DOI: 10.1016/j.curtheres.2012.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2012] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The number of patients who require treatment with proton pump inhibitors (PPIs) is increasing in Japan. One of their adverse effects is diarrhea. OBJECTIVES We investigated the incidence of diarrhea caused by 3 different PPIs: lansoprazole, rabeprazole, and omeprazole. METHODS Patients using PPIs for >1 month were enrolled. Enrolled patients recorded daily stool frequency, stool consistency using the Bristol Stool Scale Form, and impaired quality of life caused by diarrhea for 1 month. Their attending physicians described the types and dosages, and duration of PPI administration, as well as other necessary information. RESULTS A total of 255 patients participated. Mean age of the patients was 70.7 years old. During the 1-month observation period, 3.5% of the patients complained of diarrhea. There was no significant difference for the incidence of diarrhea among the 3 types of PPIs. Furthermore, no correlations between diarrhea and length and dosage of PPI administration were found. CONCLUSIONS The incidence of diarrhea in patients receiving long-term therapy did not differ among 3 different PPIs. ClinicalTrials.gov identifier: UMIN ID 000005300.
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Affiliation(s)
- Shino Shimura
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Shimane, Japan
| | | | | | - Yoshinori Kushiyama
- Department of Gastroenterology, Matsue Red Cross Hospital, Matsue, Shimane, Japan
| | - Hirofumi Fujishiro
- Department of Gastroenterology, Shimane Prefectural Central Hospital, Izumo, Shimane, Japan
| | - Yoshinori Komazawa
- Department of Gastroenterology, Izumo City General Medical Center, Izumo, Shimane, Japan
| | - Kenji Furuta
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Shimane, Japan
| | - Shunji Ishihara
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Shimane, Japan
| | - Kyoichi Adachi
- Department of Clinical Nursing, Shimane University School of Medicine, Izumo, Shimane, Japan
| | - Yoshikazu Kinoshita
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Shimane, Japan
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Neuroendocrine proliferations of the stomach: a pragmatic approach for the perplexed pathologist. Adv Anat Pathol 2013; 20:148-57. [PMID: 23574771 DOI: 10.1097/pap.0b013e31828d185d] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The classifications of neuroendocrine proliferations that lead from enterochromaffin-like cell hyperplasia to neuroendocrine tumors in the stomach are complicated and relatively inaccessible to nonspecialists. Consequently, these lesions tend to remain widely underdiagnosed until they progress to easily recognizable neuroendocrine tumors. This review provides simple, yet rigorous guidelines on how to recognize, classify, and diagnose the neuroendocrine proliferations found in the stomach, emphasizing the most common background in which they arise, atrophic gastritis. After a succinct outline of the types and distribution of the neuroendocrine cells in the normal gastric mucosa we discuss the most common situations in which the pathologist needs to think about gastric neuroendocrine cells. In general practice gastric biopsy specimens are often numerically and topographically inadequate for the evaluation of atrophic gastritis; therefore, we have included an algorithm to address specifically the steps that should be taken when confronted with suboptimal sampling. Finally, we illustrate the suggested diagnostic process with 4 cases that are fairly representative of the type of situations encountered in everyday practice. The pathologist who follows our simple steps will be better aware of this neglected area of gastric pathology and will learn to suspect, recognize, and accurately diagnose the most common abnormalities of the neuroendocrine system in the stomach.
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Wilcox CM, Seay T, Arcury JT, Mohnen J, Hirschowitz BI. Zollinger-Ellison syndrome: presentation, response to therapy, and outcome. Dig Liver Dis 2011; 43:439-43. [PMID: 21193359 DOI: 10.1016/j.dld.2010.11.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Revised: 10/14/2010] [Accepted: 11/23/2010] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recent series describing the clinical presentation, response to therapy, and long-term outcome of Zollinger-Ellison syndrome are limited. AIMS To assess the clinical characteristics and long-term outcome of patients with Zollinger-Ellison syndrome. METHODS Over a 20-year period, patients with Zollinger-Ellison syndrome were enrolled in a prospective trial evaluating the efficacy of lansoprazole. Following dose stabilization, patients were followed on a 6-monthly basis with interval history, physical examination, endoscopy with gastric biopsies, gastric acid analysis and laboratory studies. RESULTS 72 patients (mean age 54±12 years, % male 58%, % Caucasian 69%) were prospectively enrolled. The clinical presentation was stereotypical for Zollinger-Ellison syndrome. Symptoms had been reported for a median of 9 years prior to diagnosis. Cross-sectional abdominal imaging was often negative for demonstrable tumour. All patients had gastric acid hypersecretion controlled with variable doses of lansoprazole (median dose 60 mg/day, range 15-480 mg/day). The median survival from the time of diagnosis was 6.6 years; only two of 19 deaths were due to metastatic gastrinoma. CONCLUSIONS The clinical presentation of Zollinger-Ellison syndrome was similar to prior reports. Acid hypersecretion was controlled in all patients with variable doses of lansoprazole. Long-term survival was principally related to underlying co-morbidity.
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Affiliation(s)
- C Mel Wilcox
- University of Alabama at Birmingham, Division of Gastroenterology and Hepatology, Birmingham, AL, United States.
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Capurso G, Marignani M, Attilia F, Milione M, Colarossi C, Zampaletta C, Di Giulio E, Delle Fave G. Lansoprazole-induced microscopic colitis: an increasing problem? Results of a prospecive case-series and systematic review of the literature. Dig Liver Dis 2011; 43:380-5. [PMID: 21195042 DOI: 10.1016/j.dld.2010.11.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2010] [Revised: 10/26/2010] [Accepted: 11/23/2010] [Indexed: 12/11/2022]
Abstract
BACKGROUND Microscopic colitis (MC), comprising lymphocytic and collagenous colitis (LC, CC), causes chronic diarrhoea. Lansoprazole can cause MC. Likelihood criteria defining the causative relationship between drugs and MC have not been applied to lansoprazole, nor has lansoprazole-related-MC been characterized. AIM To analyse a series of lansoprazole-related MC cases, and characterize lansoprazole-related CC and LC. METHODS Cases were diagnosed over 23 months and causal relationship evaluated by established likelihood criteria. A systematic Medline search was conducted and publications analysed. RESULTS Eight patients had lansoprazole-related MC. In all cases chronological and causality likelihood scores supported lansoprazole causative role. Discontinuation determined resolution without further treatment. Twenty-five cases of lansoprazole-related MC from 10 publications were grouped with the present series, and differences between CC and LC analysed. CC cases had more macroscopic alterations at colonoscopy (72.2 vs. 6.6%; p=0.0002). Time between lansoprazole start and symptoms onset was longer for CC (median 60 vs. 28 days; p=0.03). CONCLUSIONS Peculiar features of lansoprazole-related CC were described through the analysis of a newly diagnosed lansoprazole-related MC series in which the causative role of lansoprazole was for the first time defined by established likelihood criteria, and by pooled evaluation with other cases retrieved by a systematic literature review.
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Affiliation(s)
- Gabriele Capurso
- Digestive and Liver Disease Unit, II Medical School, University Sapienza, Rome, Italy
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Dabholkar AH, Han C, Paris MM, Perez MC, Atkinson SN, Peura DA. The 12-month safety profile of dexlansoprazole, a proton pump inhibitor with a dual delayed release formulation, in patients with gastro-oesophageal reflux disease. Aliment Pharmacol Ther 2011; 33:366-77. [PMID: 21118280 DOI: 10.1111/j.1365-2036.2010.04519.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Dexlansoprazole MR is a Dual Delayed Release formulation of dexlansoprazole, an enantiomer of lansoprazole, designed to extend the duration of acid suppression. AIM To assess the 12-month safety of dexlansoprazole MR in patients with symptomatic gastro-oesophageal reflux disease (GERD). METHODS In this randomised open-label study, patients received dexlansoprazole MR 60 or 90 mg once-daily for 12 months. Safety was evaluated at months 1, 3, 6, 9 and 12/final visit through physical examinations, laboratory evaluations, endoscopies, gastric biopsies, fasting serum gastrin values and adverse events (AEs). RESULTS Of 591 patients receiving dexlansoprazole MR 60 and 90 mg, 71% and 65%, respectively, experienced ≥1 treatment-emergent AE; the most frequent AE was upper respiratory infection (14% and 13% in the 60- and 90-mg groups). Thirty patients experienced ≥1 serious AE; a majority of serious AEs were unrelated to study drug. No clinically meaningful change in any clinical laboratory parameters was noted. As expected, serum gastrin values rose with dexlansoprazole therapy; increases were not dose related. No clinically concerning trends were identified in gastric pathology results; no endocrine cell hyperplasia, adenocarcinoma, or lymphoma were observed. CONCLUSIONS Twelve-month treatment with dexlansoprazole MR 60 and 90 mg was well tolerated by GERD patients in this study (Clinicaltrials.gov identifier NCT00255190).
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Affiliation(s)
- A H Dabholkar
- Takeda Global Research & Development Center, Inc., Deerfield, IL 60015, USA.
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12
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Yang YX, Metz DC. Safety of proton pump inhibitor exposure. Gastroenterology 2010; 139:1115-27. [PMID: 20727892 DOI: 10.1053/j.gastro.2010.08.023] [Citation(s) in RCA: 156] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 08/16/2010] [Accepted: 08/16/2010] [Indexed: 12/12/2022]
Abstract
Proton pump (H(+)/K(+)-adenosine triphosphatase) inhibitors (PPIs) are widely used to treat patients with acid-related disorders because they are generally perceived to be safe and effective. However, as with any pharmacologic agent, they have the potential for side effects. Many studies have examined the side effects of long-term or short-term PPI exposure. We review the mechanism of action of PPIs, focusing on recently released products that might have greater risks of adverse effects than older products because of increased potency and/or duration of action. We summarize the data available on the putative adverse effects of PPI therapy and propose guidelines for clinicians who prescribe these agents to limit the potential for adverse outcomes in users of these effective therapeutic agents.
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Affiliation(s)
- Yu-Xiao Yang
- Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.
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13
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Haber MM, Hunt B, Freston JW, Peura DA, Kovacs TO, Atkinson S, Hisada M. Changes of gastric histology in patients with erosive oesophagitis receiving long-term lansoprazole maintenance therapy. Aliment Pharmacol Ther 2010; 32:83-96. [PMID: 20345509 DOI: 10.1111/j.1365-2036.2010.04310.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Changes in gastric histology associated with long-term maintenance therapy with lansoprazole for erosive oesophagitis have not been well described. AIM To evaluate the effect on gastric histology of long-term dose-titrated lansoprazole administered as maintenance therapy for up to 82 months in patients with erosive oesophagitis. METHODS Sequential gastric biopsy specimens were obtained for evaluation of histological changes and Helicobacter pylori infection status. RESULTS Active and chronic inflammation improved from baseline to final visit in a majority of patients receiving long-term therapy with lansoprazole, irrespective of baseline H. pylori infection status. Reductions in active inflammation in the gastric body and antrum were seen in 53% (17/32) and 67% (20/30) of H. pylori-positive patients, respectively, and in 88% (7/8) and 86% (12/14) of H. pylori-negative patients, respectively. Reductions in chronic inflammation in the gastric body and antrum were seen in 38% (12/32) and 47% (15/32) of H. pylori-positive patients, respectively, and in 58% (70/121) and 57% (68/120) of H. pylori-negative patients, respectively. No clinically meaningful increases in hyperplasia, dysplasia, neoplasia, intestinal metaplasia or atrophy were observed during the follow-up period. CONCLUSIONS Lansoprazole administered as maintenance therapy for up to 6 years in patients with erosive oesophagitis demonstrated gastric mucosal safety and was well tolerated.
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Affiliation(s)
- M M Haber
- Department of Pathology, Drexel University College of Medicine, Philadelphia, PA, USA
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14
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Current awareness: Pharmacoepidemiology and drug safety. Pharmacoepidemiol Drug Saf 2009. [DOI: 10.1002/pds.1655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Peura DA, Metz DC, Dabholkar AH, Paris MM, Yu P, Atkinson SN. Safety profile of dexlansoprazole MR, a proton pump inhibitor with a novel dual delayed release formulation: global clinical trial experience. Aliment Pharmacol Ther 2009; 30:1010-21. [PMID: 19735233 DOI: 10.1111/j.1365-2036.2009.04137.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dexlansoprazole MR is a dual delayed release formulation of dexlansoprazole, an enantiomer of lansoprazole. AIM To assess safety of dexlansoprazole MR in phase 3 clinical trials. METHODS Data from 4270 patients receiving dexlansoprazole MR 30 mg (n = 455), 60 mg (n = 2311) or 90 mg (n = 1864); lansoprazole 30 mg (n = 1363); or placebo (n = 896) in six randomized controlled trials and a 12-month safety study were pooled. Safety was assessed via adverse events, vital signs, electrocardiograms, clinical laboratory results and gastric biopsies. Adverse events were summarized per 100 patient-months of exposure to account for imbalances in study drug exposure. RESULTS The number of patients with > or =1 treatment-emergent adverse event per 100 patient-months was higher in placebo (24.49) and lansoprazole (21.06) groups than in any dexlansoprazole MR (15.64-18.75) group. Fewer patients receiving dexlansoprazole MR discontinued therapy because of an adverse event (P < or = 0.05 vs. placebo). Seven patients died of events considered unrelated to study drug. Mean serum gastrin rose in all groups except placebo; increases were not dose-related. No clinically concerning trends were seen in gastric biopsy results. Endocrine cell hyperplasia, dysplasia and neoplasia were not observed. CONCLUSION Dexlansoprazole MR 30-90 mg has a safety profile comparable to that of lansoprazole.
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Affiliation(s)
- D A Peura
- University of Virginia Health Sciences Center, Charlottesville, VA, USA.
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Sterling JA. Recent Publications on Medications and Pharmacy. Hosp Pharm 2009. [DOI: 10.1310/hpj4408-711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hospital Pharmacy presents this feature to keep pharmacists abreast of new publications in the medical/pharmacy literature. Articles of interest regarding a broad scope of topics are abstracted monthly.
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