BACKGROUND: Patients treated with antithrombotic drugs are at risk of bleeding. Bleeding may be the first manifestation of underlying cancer. METHODS: We examined new cancers diagnosed in relation to gastrointestinal or genitourinary bleeding among patients enrolled in the COMPASS trial (Cardiovascular Outcomes for People Using Anticoagulation Strategies) and determined the hazard of new cancer diagnosis after bleeding at these sites. RESULTS: Of 27 395 patients enrolled (mean age, 68 years; women, 21%), 2678 (9.8%) experienced any (major or minor) bleeding, 713 (2.6%) experienced major bleeding, and 1084 (4.0%) were diagnosed with cancer during a mean follow-up of 23 months. Among 2678 who experienced bleeding, 257 (9.9%) were subsequently diagnosed with cancer. Gastrointestinal bleeding was associated with a 20-fold higher hazard of new gastrointestinal cancer diagnosis (7.4% versus 0.5%; hazard ratio [HR], 20.6 [95% CI, 15.2-27.8]) and 1.7-fold higher hazard of new nongastrointestinal cancer diagnosis (3.8% versus 3.1%; HR, 1.70 [95% CI, 1.20-2.40]). Genitourinary bleeding was associated with a 32-fold higher hazard of new genitourinary cancer diagnosis (15.8% versus 0.8%; HR, 32.5 [95% CI, 24.7-42.9]), and urinary bleeding was associated with a 98-fold higher hazard of new urinary cancer diagnosis (14.2% versus 0.2%; HR, 98.5; 95% CI, 68.0-142.7). Nongastrointestinal, nongenitourinary bleeding was associated with a 3-fold higher hazard of nongastrointestinal, nongenitourinary cancers (4.4% versus 1.9%; HR, 3.02 [95% CI, 2.32-3.91]). CONCLUSIONS: In patients with atherosclerosis treated with antithrombotic drugs, any gastrointestinal or genitourinary bleeding was associated with higher rates of new cancer diagnosis. Any gastrointestinal or genitourinary bleeding should prompt investigation for cancers at these sites. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01776424.

• Klíčová slova
• aspirin, hemorrhage, neoplasms, rivaroxaban,
• MeSH
• Aspirin terapeutické užití   MeSH
• ateroskleróza komplikace   farmakoterapie   MeSH
• cévní mozková příhoda farmakoterapie   MeSH
• gastrointestinální krvácení chemicky indukované   MeSH
• infarkt myokardu farmakoterapie   MeSH
• inhibitory agregace trombocytů terapeutické užití   MeSH
• kombinovaná farmakoterapie metody   MeSH
• lidé středního věku MeSH
• lidé MeSH
• nádory komplikace   diagnóza   farmakoterapie   MeSH
• nemoci koronárních tepen farmakoterapie   MeSH
• onemocnění periferních arterií farmakoterapie   MeSH
• rivaroxaban terapeutické užití   MeSH
• senioři MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky MeSH
• práce podpořená grantem MeSH
• Názvy látek
• Aspirin MeSH
• inhibitory agregace trombocytů MeSH
• rivaroxaban MeSH

BACKGROUND & AIMS: Proton pump inhibitors (PPIs) are effective at treating acid-related disorders. These drugs are well tolerated in the short term, but long-term treatment was associated with adverse events in observational studies. We aimed to confirm these findings in an adequately powered randomized trial. METHODS: We performed a 3 × 2 partial factorial double-blind trial of 17,598 participants with stable cardiovascular disease and peripheral artery disease randomly assigned to groups given pantoprazole (40 mg daily, n = 8791) or placebo (n = 8807). Participants were also randomly assigned to groups that received rivaroxaban (2.5 mg twice daily) with aspirin (100 mg once daily), rivaroxaban (5 mg twice daily), or aspirin (100 mg) alone. We collected data on development of pneumonia, Clostridium difficile infection, other enteric infections, fractures, gastric atrophy, chronic kidney disease, diabetes, chronic obstructive lung disease, dementia, cardiovascular disease, cancer, hospitalizations, and all-cause mortality every 6 months. Patients were followed up for a median of 3.01 years, with 53,152 patient-years of follow-up. RESULTS: There was no statistically significant difference between the pantoprazole and placebo groups in safety events except for enteric infections (1.4% vs 1.0% in the placebo group; odds ratio, 1.33; 95% confidence interval, 1.01-1.75). For all other safety outcomes, proportions were similar between groups except for C difficile infection, which was approximately twice as common in the pantoprazole vs the placebo group, although there were only 13 events, so this difference was not statistically significant. CONCLUSIONS: In a large placebo-controlled randomized trial, we found that pantoprazole is not associated with any adverse event when used for 3 years, with the possible exception of an increased risk of enteric infections. ClinicalTrials.gov Number: NCT01776424.

• Klíčová slova
• Bacteria, CVD, Reflux, Thrombosis,
• MeSH
• Aspirin aplikace a dávkování   škodlivé účinky   MeSH
• časové faktory MeSH
• dvojitá slepá metoda MeSH
• gastrointestinální krvácení chemicky indukované   prevence a kontrola   MeSH
• hodnocení rizik MeSH
• inhibitory agregace trombocytů aplikace a dávkování   škodlivé účinky   MeSH
• inhibitory faktoru Xa aplikace a dávkování   škodlivé účinky   MeSH
• inhibitory protonové pumpy aplikace a dávkování   škodlivé účinky   MeSH
• kardiovaskulární nemoci diagnóza   farmakoterapie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• onemocnění periferních arterií diagnóza   farmakoterapie   MeSH
• pantoprazol aplikace a dávkování   škodlivé účinky   MeSH
• prospektivní studie MeSH
• pseudomembranózní enterokolitida chemicky indukované   mikrobiologie   MeSH
• rivaroxaban aplikace a dávkování   škodlivé účinky   MeSH
• rizikové faktory MeSH
• rozvrh dávkování léků MeSH
• senioři MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH
• práce podpořená grantem MeSH
• randomizované kontrolované studie MeSH
• Názvy látek
• Aspirin MeSH
• inhibitory agregace trombocytů MeSH
• inhibitory faktoru Xa MeSH
• inhibitory protonové pumpy MeSH
• pantoprazol MeSH
• rivaroxaban MeSH

BACKGROUND & AIMS: Antiplatelets and anticoagulants are associated with increased upper gastrointestinal bleeding. We evaluated whether proton pump inhibitor therapy could reduce this risk. METHODS: We performed a 3 × 2 partial factorial double-blind trial of 17,598 participants with stable cardiovascular disease and peripheral artery disease. Participants were randomly assigned to groups given pantoprazole 40 mg daily or placebo, as well as rivaroxaban 2.5 mg twice daily with aspirin 100 mg once daily, rivaroxaban 5 mg twice daily, or aspirin 100 mg alone. The primary outcome was time to first upper gastrointestinal event, defined as a composite of overt bleeding, upper gastrointestinal bleeding from a gastroduodenal lesion or of unknown origin, occult bleeding, symptomatic gastroduodenal ulcer or ≥5 erosions, upper gastrointestinal obstruction, or perforation. RESULTS: There was no significant difference in upper gastrointestinal events between the pantoprazole group (102 of 8791 events) and the placebo group (116 of 8807 events) (hazard ratio, 0.88; 95% confidence interval [CI], 0.67-1.15). Pantoprazole significantly reduced bleeding of gastroduodenal lesions (hazard ratio, 0.52; 95% confidence interval, 0.28-0.94; P = .03); this reduction was greater when we used a post-hoc definition of bleeding gastroduodenal lesion (hazard ratio, 0.45; 95% confidence interval, 0.27-0.74), although the number needed to treat still was high (n = 982; 95% confidence interval, 609-2528). CONCLUSIONS: In a randomized placebo-controlled trial, we found that routine use of proton pump inhibitors in patients receiving low-dose anticoagulation and/or aspirin for stable cardiovascular disease does not reduce upper gastrointestinal events, but may reduce bleeding from gastroduodenal lesions. ClinicalTrials.gov ID: NCT01776424.

• Klíčová slova
• Drug, Heart Disease Prevention, Stomach, Thrombosis,
• MeSH
• antikoagulancia aplikace a dávkování   škodlivé účinky   MeSH
• aplikace orální MeSH
• Aspirin aplikace a dávkování   škodlivé účinky   MeSH
• dvojitá slepá metoda MeSH
• gastrointestinální krvácení chemicky indukované   epidemiologie   prevence a kontrola   MeSH
• inhibitory protonové pumpy aplikace a dávkování   MeSH
• kardiovaskulární nemoci prevence a kontrola   MeSH
• kombinovaná farmakoterapie škodlivé účinky   metody   MeSH
• lidé středního věku MeSH
• lidé MeSH
• pantoprazol aplikace a dávkování   MeSH
• peptický vřed chemicky indukované   epidemiologie   prevence a kontrola   MeSH
• rivaroxaban aplikace a dávkování   škodlivé účinky   MeSH
• rozvrh dávkování léků MeSH
• senioři MeSH
• výsledek terapie MeSH
• vztah mezi dávkou a účinkem léčiva MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH
• práce podpořená grantem MeSH
• randomizované kontrolované studie MeSH
• Názvy látek
• antikoagulancia MeSH
• Aspirin MeSH
• inhibitory protonové pumpy MeSH
• pantoprazol MeSH
• rivaroxaban MeSH

BACKGROUND: Long-term aspirin prevents vascular events but is only modestly effective. Rivaroxaban alone or in combination with aspirin might be more effective than aspirin alone for vascular prevention in patients with stable coronary artery disease (CAD) or peripheral artery disease (PAD). Rivaroxaban as well as aspirin increase upper gastrointestinal (GI) bleeding and this might be prevented by proton pump inhibitor therapy. METHODS: Cardiovascular Outcomes for People Using Anticoagulation Strategies (COMPASS) is a double-blind superiority trial comparing rivaroxaban 2.5 mg twice daily combined with aspirin 100 mg once daily or rivaroxaban 5 mg twice daily vs aspirin 100 mg once daily for prevention of myocardial infarction, stroke, or cardiovascular death in patients with stable CAD or PAD. Patients not taking a proton pump inhibitor were also randomized, using a partial factorial design, to pantoprazole 40 mg once daily or placebo. The trial was designed to have at least 90% power to detect a 20% reduction in each of the rivaroxaban treatment arms compared with aspirin and to detect a 50% reduction in upper GI complications with pantoprazole compared with placebo. RESULTS: Between February 2013 and May 2016, we recruited 27,395 participants from 602 centres in 33 countries; 17,598 participants were included in the pantoprazole vs placebo comparison. At baseline, the mean age was 68.2 years, 22.0% were female, 90.6% had CAD, and 27.3% had PAD. CONCLUSIONS: COMPASS will provide information on the efficacy and safety of rivaroxaban, alone or in combination with aspirin, in the long-term management of patients with stable CAD or PAD, and on the efficacy and safety of pantoprazole in preventing upper GI complications in patients receiving antithrombotic therapy.

• MeSH
• antikoagulancia terapeutické užití   MeSH
• kardiovaskulární nemoci prevence a kontrola   MeSH
• lidé MeSH
• randomizované kontrolované studie jako téma metody   MeSH
• směrnice pro lékařskou praxi jako téma * MeSH
• trombolytická terapie normy   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• přehledy MeSH
• Názvy látek
• antikoagulancia MeSH