European Heart Journal - Cardiovascular Pharmacotherapy Advance Access published April 6, 2015 1 Overview of the Pharmacological Challenges facing Physicians in the Management of Patients with concomitant Cardiovascular Disease and Chronic Obstructive Pulmonary Disease Gianluca Campo*,†, Rita Pavasini*, Simone Biscaglia*, Marco Contoli‡, Claudio Ceconi*,† * Cardiovascular Institute, Azienda Ospedaliero-Universitaria S.Anna, Cona (FE), Italy †LTTA Center, Ferrara, Italy §Research Centre on Asthma and COPD, Section of Internal and Cardio-Respiratory Medicine, University of Ferrara Address for correspondence: Claudio Ceconi, MD, Cardiovascular Institute, Azienda Ospedaliera Universitaria S.Anna di Ferrara, Cona (FE), Italy, Phone: 00390532237227, Fax: 00390532241885, Email: ccncld@unife.it Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2015. For permissions please email: journals.permissions@oup.com 2 ABSTRACT. Cardiovascular disease (CVD), including ischemic heart disease (IHD) and heart failure (HF), and chronic obstructive pulmonary disease (COPD) are often concomitant, because they share both risk factors (smoke) and pathological pathways (systemic inflammation). CVD and COPD association is increasing overtime. Several registries clearly showed a negative impact on clinical outcome of the concomitant presence of CVD and COPD. Patients with CVD and COPD present an increased risk for myocardial infarction, heart failure and hospital admission for acute exacerbation of COPD, with a negative impact on prognosis. In order to reduce the effect of this negative association, it is of paramount importance the pharmacological treatment with both cardiovascular and respiratory drugs, according to current guidelines. Nevertheless, several registries and studies showed that evidence-based drugs (both cardiovascular and respiratory) are often under administered in this subset of patients. In this overview, we summarize the available data regarding the use of cardiovascular drugs (antiplatelet agents, angiotensin converting enzyme inhibitors, beta-blockers, statins) in COPD patients, with or without concomitant IHD. Furthermore, we report advantages and disadvantages of respiratory drugs (beta 2 agonists, anticholinergics, corticosteroids) administration in COPD patients with CVD. KEYWORDS. Cardiovascular disease, ischemic heart disease, heart failure, chronic obstructive pulmonary disease, beta-blockers, ACE-inhibitors, statins, acetylcholine antagonists 3 Introduction Cardiovascular disease (CVD), including ischemic heart disease (IHD) and heart failure (HF), is still the first cause of mortality and morbidity in western countries [1]. Chronic obstructive pulmonary disease (COPD) will soon become the third most common cause of death [2]. Since CVD and COPD share major risk factors (e.g. cigarette smoking and systemic inflammation), they are frequently associated [2]. The concomitant presence of CVD and COPD negatively impact on long-term prognosis [3]. CVD is the first cause of death in COPD patients [2] and, after acute exacerbation of COPD, we observed a significant increase in the risk of cardiac death and myocardial infarction (MI) [4]. Similarly, patients admitted to hospital for MI and/or receiving coronary revascularization (percutaneous or surgical) with concomitant COPD showed a decreased short- and long-term survival [5-7]. The aim of this overview is to summarize current data regarding cardiovascular drugs (antiplatelet, angiotensin converting enzyme inhibitor, angiotensin receptor blocker, beta-blocker, statin) in COPD patients with or without CVD, and respiratory drugs (beta 2 agonist, anticholinergic, corticosteroid) in CVD-COPD patients. Cardiovascular drugs in COPD patients with or without concomitant CVD. Antiplatelet agents, angiotensin converting enzyme (ACE) inhibitors or angiotensin receptor blocker (ARB), beta-blockers (BB) and statins are the most commonly prescribed drugs in patients with CVD [1]. Antiplatelet agents and COPD. During acute exacerbation (AE) of COPD, the platelet count increased significantly [8]. Thrombocytosis during AECOPD is associated with increased in-hospital and one-year mortality 4 (OR 2.37; 95%CI 1.29-4.34; and 1.53; 95%CI 1.03-2.29, respectively) [9]. We demonstrated that COPD patients treated with PCI have higher platelet reactivity (PR) if compared to patients without COPD [10]. Nevertheless, the true clinical impact of antiplatelet agent administration in COPD patients is still controversial. No data from randomized clinical trials (RCT) is available. All available findings are post-hoc analyses from registries. In patients admitted to hospital for AECOPD (n=1343), antiplatelet therapy was associated with a reduced one-year mortality (OR 0.63; 95%CI 0.47-0.85) [9]. Similarly, Ekström et al. showed that antiplatelet agents were associated with a significant reduction in mortality (HR 0.86; 95%CI 0.75–0.99) [11]. Similar finding is reported by Short et al. (HR 0.8; 95%CI 0.73-0.88), while other two studies reached to the opposite conclusion [12-14]. Data regarding new P2Y12 inhibitors (ticagrelor and prasugrel) in COPD patients are scanty. Recently, Alexopoulus et al. showed that ticagrelor administration was reduced in COPD patients admitted to hospital for ACS [15]. The limited administration of ticagrelor may be partially explained by the fact that dyspnoea is one of the most commonly reported adverse events with ticagrelor [16]. Dyspnoea may occur up to the 20% of patients receiving ticagrelor (data from RCT) [16]. Two RCTs evaluated the effect of ticagrelor on respiratory function including healthy subject and patients with asthma or COPD [17]. Ticagrelor did not alter pulmonary function at rest and during exercise [17]. Although these studies showed no interference by ticagrelor, physicians should be aware of this potential side effect that can affect up to 1 out of 5 patients. In conclusion, there no is evidence for using antiplatelet agents any differently among COPD patients than in non-COPD patients. ACE-inhibitors or ARB and COPD. Angiotensin II (AII) is a powerful vasoconstrictor, inflammatory modulator and cellular growth factor [18]. AII contributes to the inflammatory response that characterizes COPD [18]. Recently, Petersen et al. showed that ACE-inhibitor administration was related to lower FEV1 decline in 5 smokers [19]. These findings suggest a possible role for ACE inhibitors in modulating smoking effects on lung [19]. ACE-inhibitor or ARB administration in COPD patients has been suggested to manage pulmonary hypertension (PH) and to reduce all-cause mortality (Table 1). Notably, studies evaluating their effect on PH are mainly small RCT, whereas those on hard clinical endpoints are post-hoc analyses of observational and retrospective registries (Table 1). No RCT are available assessing if ACE-inhibitor or ARB reduce mortality or AECOPD in COPD patients (Table 1). In conclusion, available data are not sufficient to consider ACE-inhibitor or ARB mandatory in COPD patients. They should be prescribed according concomitant disease (e.g myocardial infarction) and risk factors (e.g. arterial hypertension). Beta-blockers and COPD. Beta-blockers (BB) are considered selective or not according the ability to block only beta 1 adrenergic receptors or both beta 1 and beta 2 adrenergic receptors [20]. Despite the positive effect of BB in COPD patients with IHD is well established, data on their utilization in daily clinical practice are not encouraging. Quint et al. reported that less than 40% of eligible patients with MI and concomitant COPD received BB [21]. Comparably, in patients with HF, the presence of COPD represents the prevalent reason for BB avoidance [22]. Fisher et al. confirmed that, at the time of hospital discharge, COPD patients were less likely treated with evidence-based HF medications, including BB [23]. Cardioselective BB produced no change in FEV1 or respiratory symptoms, as well as they did not affect the FEV1 treatment response to long-acting beta 2 agonists (LABA) [24]. The use of cardioselective BB in COPD patients has to be encouraged also considering data on mortality. A metanalysis including studies until 2011, showed a pooled relative risk reduction in mortality for COPD patients receiving BB (RR 0.69, 95%CI 0.62-0.78) [25]. We reported in Table 2 all studies published subsequently. We did not have RCT evaluating the relationship between BB, COPD and mortality. 6 In conclusion, BB administration in COPD patients is safe. Cardioselective BB, if indicated, should be administered in COPD patients, independently to pulmonary comorbidity. Although RCT are missing, all available studies suggest a mortality reduction in COPD patients assuming BB. Statins and COPD. Statins are able to reduce both systemic and pulmonary cytokine driven inflammation by inhibiting Rho guanosine triphosphatase proteins [26-27]. Simvastatin reverses pulmonary vascular effects of cigarette smoke, including PH and emphysema [28]. Accordingly, several Authors evaluated the potential role of statin administration in COPD patients to reduce both all-cause mortality and AECOPD. The majority of data is derived from registries and retrospective studies (Table 3). Recently, a worthy RCT has been conducted [29]. The effect of simvastatin 40 mg on occurrence of AECOPD in patients with moderate to severe COPD has been evaluated in a prospective RCT [29]. The trial did not reached the primary endpoint, failing to demonstrate a change in the incidence of AECOPD in patients treated with simvastatin as compared to placebo [29]. No effect on hard cardiac endpoints was reported [29]. In conclusion, the potential benefit of statins in COPD patients has not been demonstrated. If indicated, statins must be administered to COPD patients, but there is no particular reason to start statins in COPD patients who do not otherwise have an indication. Oral anticoagulants and COPD. COPD emerged as significant predictor of atrial fibrillation/atrial flutter (23% vs. 11%, p<0.01) after adjustment for all confounding factors [30]. Warfarin is the most commonly prescribed oral anticoagulant in general population. Retrospective studies reported that anticoagulation treatment is inadequate in patients with atrial fibrillation and COPD [30-31]. This may be explained by the higher occurrence of coexisting morbidities and by the higher risk of bleeding complications in COPD patients [5,32-33]. Nowadays, dabigatran, rivaroxaban and apixan are available in the 7 market [34]. They significantly reduced bleeding complications [34]. Nevertheless, no studies evaluated if this reduction is confirmed or different in COPD patients. Interestingly, in a substudy of the ROCKET-AF trial, COPD emerged as independent predictor of major bleeding risk [35]. In conclusion, although COPD patients are at higher risk of bleeding complications, oral anticoagulants should not be denied if clinically indicated. Respiratory drugs in patients with concomitant COPD and IHD. Treatment of COPD is based on long-acting inhaled bronchodilators (anticholinergics or LABA), inhaled corticosteroids (ICS) or a combination of these agents. Acetylcholine antagonists. Ipratropium, oxitropium and tiotropium are the most common anticholinergic drugs [2]. Patients treated with tiotropium are at higher risk of tachy-arrhythmias (RR 3.70, 95%CI 0.79-17.4) and atrial tachycardias (RR 7.39, 95%CI 0.92-59.1) [36]. The cardiovascular effects of inhaled anticholinergics have been evaluated in several studies (both RCT and registries). Some registries and post-hoc analyses suggested an higher risk of cardiac adverse events in COPD patients receiving anticholinergics. In view of these concerns, systematic reviews and meta-analyses have been performed and we reported their results in Table 4. Two main RCT investigated this topic. In the UPLIFT trial, tiotropium administration was associated with reduced 4-years cardiac mortality (HR 0.86, 95%CI 0.75-0.99) [37]. To explain the differences, a relationship between formulation (dry-powder vs. aqueous solution), dose (18 μg vs. 5 μg) and outcome has been suggested. Accordingly, the TIOSPIR trial has been planned. This was a large-scale (n=17183 patients), randomized, prospective evaluation of the safety and efficacy of tiotropium Respimat, as compared with tiotropium HandiHaler [38]. No difference in mortality, exacerbations, causes of death and major cardiovascular adverse events has been observed [38]. 8 In conclusion, the administration of inhaled anticholinergics is safe and effective in COPD patients, also with concomitant CVD. Long-acting beta 2 agonists. The study of the relationship between LABA and cardiac adverse events in patients with concomitant COPD and CVD showed conflicting results. All data derived from registries. No RCT are available. Meta-analyses trying to assess the relationship between LABA and cardiac adverse events are reported in Table 4. A post-hoc analysis of the TORCH study merits a special consideration [39]. In this analysis it was reported the relationship between salmeterol, fluticasone (in combination or alone) vs. placebo and the incidence of CV adverse events. The analysis found that salmeterol alone or in combination with fluticasone did not increase the risk of events (HR 0.89, 95%CI 0.72-1.10) [39]. In conclusion, LABA administration is safe. It showed only minor cardiac side effects and did not influence long-term mortality. Inhaled corticosteroids. ICS are frequently prescribed to control progression and symptoms of COPD [2]. Even ICS cause a slight increase in gastrointestinal bleedings (HR 1.26, 95%CI 1.02-1.56) [40]. Of note, adequate use of spacer device reduced significantly these complications (0.26, 95%CI 0.2-0.34) [40]. To evaluate the safety and effectiveness of ICS in COPD patients, several RCT have been performed. Some studies have yielded conflicting results regarding survival and risk of MI. Meta-analysis clarifying this issue are reported in Table 4. In conclusion, no evidences support a negative relationship between ICS and mortality or cardiac adverse events in COPD patients with or without concomitant CVD. 9 Conclusions and future perspectives. Available studies strongly suggest that evidence-based treatment should not be modified in patients with concomitant presence of COPD and CVD. In daily clinical practice, it is mandatory to obtain the optimal titration of both cardiovascular and respiratory drugs. Available data strongly suggested that patients with concomitant COPD and CVD are at higher risk of death and adverse events. This is confirmed in several registries and trials. The early identification of the comorbidity and a prompt treatment of each singular disease may significantly improve the quality of life and the prognosis of these patients. 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Singh S, Loke YK, Enright PL, Furberg CD. Mortality associated with tiotropium mist inhaler in patients with chronic obstructive pulmonary disease: systematic review and meta-analysis of randomised controlled trials. BMJ. 2011;342:d3215. 60. Dong YH, Lin HH, Shau WY, Wu YC, Chang CH, Lai MS. Comparative safety of inhaled medications in patients with chronic obstructive pulmonary disease: systematic review and mixed 16 treatment comparison meta-analysis of randomised controlled trials. Thorax. 2013;68:48-56. 17 Table 1: Main studies evaluating the role of ACE inhibitors or ARBs in COPD patients. Patients COPD diagnosis (n) Studies on all-cause mortality References Mortensen et al. [41] 11212 Previous diagnosis of COPD (ICD 9) Mancini et al. [42] 5853 cases 116871 controls Previous prescription of LABA, ICS, ACh. Ekström et al. [11] 2249 Physician diagnosed COPD Zeng et al 220 Spirometry [43] Studies on pulmonary hypertension Zielinski et al. [44] 15 Clinical COPD diagnosis Kanazawa et al. [45] 36 Clinical COPD diagnosis Morrell et al. [46] 40 Clinical COPD diagnosis Study population characteristics Design Hospitalization for AECOPD and treated with LABA, ICS, ACh Retrospective Cohort high CV risk (previous MI and/or CR); cohort low CV risk (absence of previous factors) Patients starting long term oxygen therapy for COPD Hospitalization in geriatric department COPD patients hospitalized for right heart failure Genotyping of ACE gene Patients with both COPD and pulmonary artery hypertension Main findings Reduction 90-days mortality (OR 0.55, 95%CI 0.46–0.66) Retrospective ARBs reduce mortality: -low CV risk and receiving ICS (HR 0.63, 95%CI 0.44-0.89) -low CV risk and not receiving ICS (HR 0.62; 95%CI 0.44-0.87) -high CV risk and receiving ICS (HR 0.61; 95%CI 0.51-0.73) -high CV risk and not receiving ICS (HR 0.53; 95%CI 0.44-0.64). ACE-Is do not reduce mortality in high CV risk patients ACE-Is reduce mortality in low CV risk patients: -receiving ICS (HR 0.74; 95%CI 0.65-0.85) - not receiving ICS (HR 0.68; 95%CI 0.60-0.77) Prospective observational multicenter study No reduction in mortality. Retrospective ACE-Is reduce mortality (HR 0.15; 95% CI 0.03-0.68) ARBs reduce mortality (HR 0.38; 95% CI 0.18-0.82) RCT single blind Captopril does not reduce pulmonary vascular resistance. RCT double blind Captopril reduces mPAP in ID/II carriers. RCT double blind Losartan does not influence trans-tricuspid pressure gradient. COPD: chronic obstructive pulmonary disease. ACE-I: angiotensin converting enzyme inhibitors. ARB: angiotensin receptor blocker. AECOPD: acute exacerbation of COPD. LABA: long-acting β2 agonists. ICS: inhaled corticosteroids. Ach: inhaled anticholinergics. Y: yes. OR: odds ratio. CI: confidence interval. CV: cardiovascular. MI: myocardial infarction.. CR: coronary revascularization. HR: hazard risk. N: no. NS: not specified. PH: pulmonary hypertension. mPAP: mean pulmonary artery pressure. RCT: randomized clinical trial. 18 Table 2: Main studies evaluating the role of beta-blockers in COPD patients. References Patients (n) Rutten et al [47] 2230 Short et al. [12] 5977 GOLD criteria Zeng et al. [43] 220 Spirometric data Quint et al. [21] 1063 Angeloni et al [48] Lee et al. [49] COPD diagnosis Age ≥45 years and incident or prevalent diagnosis of COPD (ICD9 and 10) Study population characteristics Design Main findings Hospitalization for AECOPD Observational cohort study Reduction of mortality (HR 0.68; 95%CI 0.5-0.8) Reduction of AECOPD (0.71; 95%CI 0.6-0.8) Reduction of mortality in BB and LABA users (HR 0.6; 95%CI 0.5-0.8) Hospitalization for COPD (ICD9 and 10) Hospital admission in Geriatrics departement Retrospective cohort study Reduction in mortality (HR 0.2; 95%CI 0.2-0.4). Retrospective cohort study No relation with mortality. Previous diagnosis of COPD COPD patients experiencing first MI Population based cohort study Reduction of mortality for BB chronically users (HR 0.59, 95%CI 0.4-0.7) Reduction of mortality for new prescribed BB (HR 0.5, 95%CI 0.3-0.7) 388 GOLD criteria COPD patients undergoing CABG Propensity-matched cohorts with prospective follow-up Increased survival rate in BB users (91±3% vs. 80±4%) No variation in AECOPD. 1062 Previous diagnosis of COPD (ICD9 and 10) Outpatient or hospital diagnosis within 12 months Population based cohort study No difference in all-cause mortality. COPD: chronic obstructive pulmonary disease. GOLD: global initiative for chronic obstructive lung disease. ICD: international classification of disease. HR: hazard risk. CI: confidence interval. AECOPD: acute exacerbation of chronic obstructive pulmonary disease. BB: beta-blockers. LABA: long-acting β2 agonists. CABG: coronary artery bypass graft. 19 Table 3: Main studies evaluating the role of statins in COPD patients. References Patients (n) COPD diagnosis Study population characteristics Mancini et al. [42] 5853 cases 116871 controls Previous prescription of LABA, ICS, ACh. Soyseth et al. [13] 854 Mortensen et al. [41] 11212 Sheng et al. [14] Lawes et al. [50] Ekström et al. [11] Lahousse et al. [51] 1717 1687 2249 363 cases vs. 2345 controls Previous diagnosis of COPD (ICD 9 and 10) Previous diagnosis of COPD (ICD 9) Previous diagnosis of COPD (ICD 9 and 10) Diagnosis of COPD (ICD 10) Physician diagnosed COPD Spirometric data Design Main findings Cohort high CV risk (previous MI and/or CR); cohort low CV risk (absence of previous factors) Retrospective Significant reduction in mortality: -high CV risk receiving ICS (HR 0.5; 95%CI 0.4-0.62) -high CV risk not receiving ICS (HR 0.53; 95%CI 0.45-0.65) -low CV risk receiving ICS (HR 0.53; 95%CI 0.44-0.64) -low CV risk not receiving ICS (HR 0.49; 95%CI 0.41-0.58) Hospitalization for AECOPD Retrospective cohort study Reduction in mortality (HR 0.57; 95%CI 0.38-0.87) Hospitalization for AECOPD Retrospective Reduction in 90-days mortality (OR 0.51, 95%CI 0.4–0.64) Outpatients Retrospective cohort study Primary prevention: -all-cause mortality reduction (HR 0.6; 95%CI 0.43-0.85) Secondary prevention: -all-cause mortality reduction (HR 0.58; 95%CI 0.35-0.97) -CV mortality reduction (HR 0.32, 95%CI 0.13-0.7) Outpatients Cohort study All-cause mortality reduction (HR 0.69; 95%CI 0.58- 0.84) Patients starting long term oxygen therapy for COPD Prospective multicenter study Nested case-control analysis from a population-based cohort study Outpatients No significant reduction in mortality. Reduction in mortality (RR 39; 95%CI 0.38-0.99) Patients with CRP>3 mg/L: RR 78% (95%CI 0.06-0.74) COPD: chronic obstructive pulmonary disease. LABA: long-acting β2 agonists. ICS: inhaled corticosteroids. ACh: inhaled anti-cholinergic. AECOPD: acute exacerbation of COPD. HR: hazard ratio. CI: confidence interval. CV: cardiovascular. GOLD: global initiative for chronic obstructive lung disease. ICD: international classification of disease. CRP: C-reactive protein. RR: relative risk. 20 Table 4: Inhaled respiratory drugs and mortality/cardiac adverse events in COPD patients (data from meta-analyses). References Patients (no.) studies type studies included drug Main findings Salpeter et al. [52] 6855 RCT 20 LABA vs. placebo Sin et al. [53] 5085 RCT 7 ICS vs. placebo Salpeter et al. [54] 15276 RCT 22 B2A vs. anticholinegic vs. placebo Increased risk of CV adverse event (RR 2.5; 95%CI 1.6-4) No difference in MACE ICS reduced all-cause mortality by about 25% Mortality reduction in woman (HR 0.6, 95% 0.39-0.91) Mortality reduction in former smokers (HR 0.6, 95%CI 0.36-0.93) Anticholinergic reduces severe AECOPD (RR 0.7, 95%CI 0.5-0.9) Anticholinergic reduces respiratory death (RR 0.3, 95%CI 0.1-0.8) B2A did not affect severe AECOPD B2A increases respiratory death (RR 3, 95%CI 1.7-5.5) 13 ICS vs. placebo No difference in overall mortality 11 ICS vs. placebo No difference in 1-year mortality Gartlehner et al. [55] Drummond et al [56] 4300 14426 Double blinded RCT Double blind RCT No difference in CV adverse events No increase in CV mortality No increase in nonfatal MI No increase in nonfatal stroke In RCT, no effect on MI In RCT, no effect on CV death In RCT, no effect on mortality In COS, reduction of CV death (RR 0.79, 95%CI 0.72-0.86) In COS, no effect on mortality 18111 RCT 19 inhaled tiotropium vs. placebo Loke et al. [58] 23396 RCT and controlled observational studies - ICS vs. placebo Singh et al. [59] 6522 parallel group RCT 5 tiotropium inhaler vs. placebo Increased all-cause mortality (RR 1.52, 95%CI 1.06-2.16) Increased CV mortality (RR 2.05, 95%CI 1.06-3.99) tiotroprium vs. LABA vs. ICS Soft mist inhaler vs. placebo on death (OR 1.5, 95%CI 1.1-2.2) Soft mist inhaler vs. dry-powder on death(OR 1.7, 95%CI 1.1-2.4) Soft mist inhaler vs. LABA on death (OR 1.6; 95%CI 1.1-2.5) Soft mist inhaler vs. LABA-ICS on death (OR 1.9; 95%CI 1.3-2.8) LABA-ICS was associated with the lowest risk of death No excess risk was noted for tiotropium dry powder or LABA Rodrigo et al. [57] Dong et al. [60] 52516 RCT 42 21 COPD: chronic obstructive pulmonary disease. RCT: randomized clinical trials. LABA: long-acting β2 agonists. CV: cardiovascular. MI: myocardial infarction. MTC: mixed treatment comparison. n: number. RR: relative risk. OR: odds ratio. HR: hazard risk. CI: confidence interval. AECOPD: acute exacerbation of chronic obstructive pulmonary disease.. ICS: inhaled corticosteroids. MACE: major adverse cardiac event (ventricular arrhythmias, myocardial infarction and sudden death). COS: controlled observational studies
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