LANTERN: a randomized study of QVA149 versus salmeterol/fluticasone combination in patients with COPD
Received 11 March 2015
Accepted for publication 22 April 2015
Published 5 June 2015 Volume 2015:10(1) Pages 1015—1026
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 6
Editor who approved publication: Dr Richard Russell
Nanshan Zhong,1 Changzheng Wang,2 Xiangdong Zhou,3 Nuofu Zhang,1 Michael Humphries,4 Linda Wang,4 Chau Thach,5 Francesco Patalano,6 Donald Banerji5
On behalf of the LANTERN Investigators
1State Key Laboratory of Respiratory Diseases, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 2Institute of Respiratory Disease, Xin Qiao Hospital, 3Department of Respiratory Medicine, Southwest Hospital, Third Military Medical University, Chongqing City, Chongqing, 4Beijing Novartis Pharma Co. Ltd., Shanghai, People’s Republic of China; 5Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA; 6Novartis Pharma AG, Basel, Switzerland
Background: The current Global initiative for chronic Obstructive Lung Disease (GOLD) treatment strategy recommends the use of one or more bronchodilators according to the patient’s airflow limitation, their history of exacerbations, and symptoms. The LANTERN study evaluated the effect of the long-acting β2-agonist (LABA)/long-acting muscarinic antagonist (LAMA) dual bronchodilator, QVA149 (indacaterol/glycopyrronium), as compared with the LABA/inhaled corticosteroid, salmeterol/fluticasone (SFC), in patients with moderate-to-severe COPD with a history of ≤1 exacerbation in the previous year.
Methods: In this double-blind, double-dummy, parallel-group study, 744 patients with moderate-to-severe COPD with a history of ≤1 exacerbations in the previous year were randomized (1:1) to QVA149 110/50 µg once daily or SFC 50/500 µg twice daily for 26 weeks. The primary endpoint was noninferiority of QVA149 versus SFC for trough forced expiratory volume in 1 second (FEV1) at week 26.
Results: Overall, 676 patients completed the study. The primary objective of noninferiority between QVA149 and SFC in trough FEV1 at week 26 was met. QVA149 demonstrated statistically significant superiority to SFC for trough FEV1 (treatment difference [∆]=75 mL; P<0.001). QVA149 demonstrated a statistically significant improvement in standardized area under the curve (AUC) from 0 hours to 4 hours for FEV1 (FEV1 AUC0–4h) at week 26 versus SFC (∆=122 mL; P<0.001). QVA149 and SFC had similar improvements in transition dyspnea index focal score, St George Respiratory Questionnaire total score, and rescue medication use. However, QVA149 significantly reduced the rate of moderate or severe exacerbations by 31% (P=0.048) over SFC. Overall, the incidence of adverse events was comparable between QVA149 (40.1%) and SFC (47.4%). The incidence of pneumonia was threefold lower with QVA149 (0.8%) versus SFC (2.7%).
Conclusion: These findings support the use of the LABA/LAMA, QVA149 as an alternative treatment, over LABA/inhaled corticosteroid, in the management of moderate-to-severe COPD patients (GOLD B and GOLD D) with a history of ≤1 exacerbation in the previous year.
Keywords: COPD, long-acting β2-agonists, long-acting muscarinic antagonist, clinical trial
COPD is characterized by chronic airflow obstruction that interferes with normal breathing and is not fully reversible. The airflow limitation is usually progressive and associated with an abnormal inflammatory response of the lung to noxious particles or gases.1 COPD and, more specifically, the frequent and recurrent exacerbations experienced by patients with COPD, can result in significant health care costs, as well as causing high morbidity and mortality among this group.2–4
The Global Initiative for Chronic Obstructive Lung Disease (GOLD) strategy document recommends the use of one or more bronchodilators based on a patient’s airflow limitation, his or her history of exacerbations, and symptoms.5 The goals of inhaled therapies are to improve dyspnea, quality of life, prevent disease progression, prevent exacerbations, and reduce mortality.5 Inhaled bronchodilator therapy consists of short-acting bronchodilators, long-acting β2-adrenergic receptor agonists (LABA) and long-acting muscarinic receptor antagonists (LAMA). Inhaled corticosteroids (ICS), combined with LABAs, are recommended specifically in subgroups of COPD patients who are at an increased risk of exacerbations, as these patients are most likely to benefit from ICS therapy.6–8 Despite these recommendations, ICS and fixed-dose combinations containing an ICS are often prescribed earlier in the course of the disease to more moderate COPD patients.9,10 LABAs and LAMAs target complementary pathways leading to bronchodilation11 and, to date, numerous studies have confirmed significantly superior improvements in bronchodilation, symptoms, and quality of life with LABA/LAMA combinations when compared with the respective monotherapies alone.12–17
QVA149 is a fixed-dose combination of two long-acting bronchodilators, indacaterol (QAB149, LABA) and glycopyrronium (NVA237, LAMA), for the once daily maintenance treatment of COPD. The ILLUMINATE study18 demonstrated that QVA149 provided superior bronchodilation compared with LABA/ICS (salmeterol/fluticasone [SFC]) in patients with moderate-to-severe COPD without a history of exacerbations in the previous year. Furthermore, in the post hoc analysis of the ILLUMINATE study,19 QVA149 showed comparable results in terms of frequency and time to first exacerbation in patients without exacerbation in the previous year, as compared with SFC.
In this study (LANTERN), the efficacy and safety of QVA149 was compared with that of SFC in predominantly Chinese patients with moderate-to-severe COPD with a history of ≤1 exacerbation in the previous year. Some of the results of this study have been previously reported in the form of an abstract.20
LANTERN was a 26-week, multicenter, randomized, double-blind, double-dummy, parallel-group study (Figure 1). The first patient was enrolled on November 8, 2012, and the last patient completed the study on February 28, 2014. After assessing the eligibility during a 14-day run-in period, patients were randomized (1:1) to receive either QVA149 110/50 μg once daily delivered via the Breezhaler® device (Novartis Pharma AG, Basel, Switzerland) or SFC 50/500 μg twice daily delivered via the Accuhaler® device (Glaxo-SmithKline plc, London, UK) and matching placebos. More details are provided in the online Supplementary materials. The patients were treated in the morning (between 8 am and 11 am for both of the devices) and evening (approximately 12 hours after the morning dose; Accuhaler® device only).
Figure 1 The LANTERN study design.
This study enrolled male and female patients aged ≥40 years with moderate-to-severe COPD (stage II and III, as defined in the GOLD 2010 criteria21). All patients had a modified Medical Research Council (mMRC) grade ≥2 at screening. Patients were excluded from this study if they had experienced more than one documented COPD exacerbation that required treatment with antibiotics and/or oral corticosteroids and/or hospitalization in the year before the screening visit or during the run-in period. Detailed inclusion and exclusion criteria, as well as the medication allowed during the trial, are included in Tables S1 and S2. All participants provided written informed consent, and the study was approved by institutional review boards and ethics committees at participating centers, and was conducted in accordance with the Declaration of Helsinki and Good Clinical Practice guidelines.
Assessment and outcome measures
Spirometry measurements were recorded at all clinic visits (day 1 and at weeks 6, 12, 18, and 26), using centralized spirometry. A subset of patients had more frequent postdose spirometric measurements. More details and definitions of spirometry measurements are provided in the online Supplementary materials.
The primary objective was to demonstrate the noninferiority of QVA149 to SFC in terms of postdose trough forced expiratory volume in 1 second (FEV1) at week 26. The noninferiority margin was defined to be −60 mL, as per previous findings.22 If noninferiority of QVA149 versus SFC was met, then QVA149 would be tested for superiority and controlled by the prespecified hierarchical procedure.
The key secondary objective was to determine the superiority of QVA149 to SFC in terms of the standardized area under the curve (AUC) from 0 hours to 4 hours postdose for FEV1 (FEV1 AUC0–4h) following 26 weeks of treatment.
Other secondary endpoints included: peak FEV1 and forced vital capacity (FVC); trough FVC; Transitional Dyspnea Index (TDI) focal score; and St George’s Respiratory Questionnaire (SGRQ) total score at weeks 12 and 26. At all sites, patients used an electronic diary (e-diary) to capture the use of rescue medication, exacerbations, and other symptoms experienced during the study. Exploratory objectives included the assessment of health-related quality of life using the COPD assessment test (CAT) score at weeks 12 and 26 and COPD exacerbations that occurred over 26 weeks. The definition of exacerbations and safety assessments are provided in the online Supplementary materials.
A sample size of 736 patients (QVA149, 368; and SFC, 368) was planned to be randomized and this number was adjusted for 25% dropouts until week 26 and those with major protocol deviations. The estimate for the standard deviation for trough FEV1 at week 26 was 210 mL. For trough FEV1, it was assumed that the estimated treatment difference between QVA149 and SFC was 0 mL and the noninferiority margin was assumed to be −60 mL. This noninferiority margin was based on the treatment difference between SFC and placebo of 160 mL with a 95% confidence interval (CI) of 120–200 mL, as summarized in a Cochrane review.22 A reasonable approach to establish the noninferiority margin is to take one-half of the lower bound of the CI, which is −60 mL. Using these assumptions, a sample size of 276 evaluable patients in each treatment group gave 91% power for the testing of noninferiority (2.5% significance level, one-sided).
For key secondary variables, a sample size of 736 patients with 368 randomized to either the QVA149 or SFC treatment arms had at least 90% power to detect at least a 60 mL treatment difference in standardized FEV1 AUC0–4h at week 26 between QVA149 and SFC using a two-sided test with a 5% significance level.
SAS version 9.3 was used to perform all the statistical analyses. The full analysis set (FAS) included all randomized patients who received at least one dose of the study drug. The per protocol set included all patients in the FAS without any major protocol deviations (study drug compliance <80% or >120%, inclusion or exclusion criteria violation, etc). The safety population included all patients who received at least one dose of the study drug, regardless of whether the patient was randomized.
The primary endpoint, mean trough FEV1 after 26 weeks (imputed with the last observation carried forward), was analyzed using a mixed model. The model included treatment, smoking status (current/ex-smoker), COPD exacerbation history (yes/no), baseline ICS use (yes/no), and region as fixed effects; baseline FEV1 measurement and FEV1 reversibility as covariates; and center nested within region as a random effect. The estimated adjusted treatment difference for QVA149 to SFC was displayed along with the associated two-sided 95% CI. The objective of noninferiority was achieved if the lower bound of the 95% CI of the estimated treatment difference was greater than −60 mL for the per protocol set. Superiority testing for QVA149 compared with SFC on the trough FEV1 was performed on the FAS after the primary objective was met in a hierarchical procedure to protect the overall type 1 error at 0.05. There was no multiplicity adjustment on other secondary analyses.
Unless stated otherwise, secondary endpoints were evaluated using the same mixed model as in the primary endpoint on the FAS, but the respective baseline values replaced FEV1 as a covariate.
Moderate or severe COPD exacerbation was analyzed as an exacerbation rate by a negative binomial model, and time to first exacerbation by a Kaplan–Meier curve and Cox proportional hazard model. The negative binomial model and Cox proportional hazard model included treatment, baseline ICS use (yes/no), baseline total symptom score, baseline COPD exacerbation history (the number of COPD exacerbations in the year prior to screening), FEV1 reversibility components, smoking history (current/ex-smoker), and region.
All safety endpoints were summarized by treatment for the safety set. Further information on statistics and data analysis is provided in the online Supplementary materials.
Of the 744 patients who were randomized, 676 (90.9%) patients completed the study (QVA149 number [n]=343; SFC n=333; Figure 2). A similar percentage of patients completed both treatment arms (92.2% QVA149 and 89.5% SFC) with adverse events (AEs) being the common reason for discontinuation in both groups (3.0% QVA149 and 4.8% SFC).
Figure 2 LANTERN trial profile.
Patient demographics and baseline characteristics
Patient demographics were comparable between treatment arms (Table 1). Most patients were male (91.7% in QVA149 and 89.7% in SFC) and from the People’s Republic of China (80%). The majority of patients (98.6%) in both treatment arms had moderate or severe COPD, as defined by the GOLD 2010 strategy.21 Only 16.4% of QVA149 and 25.2% of SFC patients had a history of exacerbation in the past year. The mean postbronchodilator % predicted FEV1 was approximately 52% in both groups. When mMRC scores and lung function were assessed, as per the GOLD 2014 guidelines, 53% were classified as GOLD B and 47% classified as GOLD D.23 Prior to study enrollment, 74% of patients were using COPD-related medications and this was well balanced between both treatment arms (QVA149 72.0%; SFC 75.9%). ICS use at baseline was similar between the treatment arms (QVA149 55.4%; SFC 54.2%).
At week 26, QVA149 was deemed to be noninferior to SFC by meeting the predefined noninferiority margin of −60 mL in trough FEV1 (treatment difference [Δ]=72 mL; 95% CI: 40, 104) for the per protocol set. QVA149 treatment demonstrated statistically significant superiority to SFC for trough FEV1 (Δ=75 mL, 95% CI: 44, 107; P<0.001; Figure 3 and Table 2) for the FAS. This significant improvement in trough FEV1 with QVA149 treatment compared with SFC was also observed at day 1 (Δ=43 mL, P<0.001) and had reached a steady state by week 12 (Δ=78 mL; P<0.001; Figure 3 and Table 2). QVA149 demonstrated statistically significant improvements in FEV1 AUC0–4h at day 1 and week 26 when compared with SFC (Δ=65 mL and Δ=122 mL, respectively; all P<0.001; Table 2). The peak FEV1 was significantly higher at day 1 and week 26 in the QVA149 treatment arm compared with SFC (all P<0.001; Table 2). Trough FVC was significantly higher for QVA149 than for SFC (P<0.001; Table 2). Similarly, statistically significant improvements in peak FVC (taken over the first 4 hours) was observed in QVA149 when compared with SFC at day 1 and week 26 (all P<0.001; Table 2). A higher percentage of patients in the QVA149 group achieved an improvement of ≥100 mL (QVA149 60.6%; SFC 44.2%) or ≥200 mL (QVA149 43.7%; SFC 24.7%) in trough FEV1 from baseline to week 26 when compared with SFC (Table S3). The primary endpoint (trough FEV1 at week 26) was also analyzed by various subgroups including current smoking status, ICS use at baseline, severity of COPD, age, and COPD exacerbation history with all comparisons favoring QVA149 over SFC (Figure 4).
Dyspnea, health status, rescue medication, and patient symptoms
Patients treated with QVA149 and SFC had improvements in their TDI focal score at weeks 12 and 26 when compared to their respective baselines, which were substantially greater than the minimally clinically important difference (MCID) of one unit, although no statistical difference was observed between the two groups at weeks 12 and 26 (P=0.15 and P=0.44, respectively; Table 2). There was a similar improvement in the SGRQ total score between patients receiving QVA149 and SFC at weeks 12 and 26 (Table 2). The mean change from baseline in SGRQ was also greater than the accepted MCID of four units in both treatment arms. Analysis of the patients’ symptoms, the use of rescue medication, and the total CAT scores after 26 weeks were also comparable between QVA149 and SFC (Table 2). Patient-recorded symptoms were also similar between the two groups (Table S4).
Moderate or severe exacerbations
In the overall patient population, the annualized rate of moderate or severe COPD exacerbations was significantly lower in the QVA149 treatment arm compared with SFC treatment arm (P=0.048), indicating a risk reduction of 31% (Table 3). QVA149 also significantly prolonged the time to first moderate or severe exacerbation and reduced the hazard of having such exacerbations by 35% when compared with SFC treatment (P=0.028; Figure 5).
Table 3 Summary and analysis of COPD exacerbations over 26 weeks by treatment group (full analysis set)
Due to the observed different percentages of patients with a history of exacerbation at baseline in the treatment groups (16.4% of QVA149 and 25.2% of SFC), post hoc analyses were performed on subgroups of patients with or without a baseline history of exacerbation. The rate of moderate or severe COPD exacerbations was analyzed in these subgroups of patients with the same negative binomial model used for the overall population, except without the baseline COPD exacerbation history term in the model. In patients with a history of moderate or severe exacerbations at baseline, the annualized rate of moderate or severe COPD exacerbations was 40% lower in the QVA149 treatment arm compared with the SFC treatment arm (rate ratio: 0.60; 95% CI: 0.33, 1.08; Table 4). In only those patients without a history of moderate or severe exacerbations at baseline, the annualized rate of moderate or severe COPD exacerbations was 34% lower in the QVA149 treatment arm compared with SFC treatment arm (rate ratio: 0.76; 95% CI: 0.46, 1.24; Table 4).
Although the differences in these subgroups were not statistically significant (the subgroups were not powered for hypothesis testing), the results for both subgroups were consistent in that fewer QVA149 patients experienced exacerbations compared to SFC patients. Further evaluations of exacerbations can be found in Table S5 and Figure S1.
Overall, AEs were lower in the patients treated with QVA149 compared with SFC (Table 5). More patients in the SFC treatment arm reported a COPD-related AE when compared with QVA149 (26.3% and 20.2%, respectively). In the LANTERN study, fewer cases of pneumonia were reported in the QVA149 group (n=3 [0.8%]) compared with the SFC-treated patients (n=10 [2.7%]). Similarly, there were fewer upper respiratory tract infections reported in the QVA149 treatment arm (n=13 [3.5%]) compared with the SFC arm (n=26 [7.0%]). AEs leading to discontinuation were more frequent with SFC compared with QVA149. COPD worsening was the most common AE leading to discontinuation in both treatment arms (QVA149, 0.8%; SFC, 1.9%) (Table 5). The total number of AEs leading to hospitalization was almost double in the SFC group (n=31 [8.4%]) when compared with the QVA149 group (n=16 [4.3%]). Similarly, the two leading causes of such hospitalization (COPD exacerbation and pneumonia) were more prominent in the SFC group (n=16 [4.3%] and n=4 [1.1%], respectively) when compared with QVA149 (n=6 [1.6%] and n=2 [0.5%], respectively; Figure S2).
Table 5 Number (%) of AEs, SAEs, and deaths (safety set)
The incidence of serious AEs was lower in QVA149-treated patients when compared to the SFC group. COPD was the major cause of serious AEs and was higher in the SFC treatment arm when compared to the QVA149 arm (Table 5). The incidence of major adverse cardiovascular events was comparable between the treatment groups (QVA149, 0.8%; SFC, 0.3%). As would be expected to occur in an elderly patient population with comorbidities, two deaths were reported within the QVA149 treatment arm.
In this study, QVA149 once daily was compared with the LABA/ICS fixed-dose combination, SFC, administered twice daily in patients with moderate-to-severe COPD. The primary endpoint of this study was achieved, whereby QVA149 demonstrated noninferiority by trough FEV1 when compared with SFC at week 26, and it also demonstrated superiority on this endpoint. In this study, trough FEV1 was considered as a primary endpoint to assess the bronchodilator effect. As SFC was administered twice daily, it was important to determine the bronchodilator effect after twice daily administration – ie, at trough FEV1. Furthermore, improvement in trough FEV1 in all subgroups based on age, smoking history, COPD severity, ICS use at baseline, and exacerbations in the previous year was generally consistent with the overall study population. Also, a statistically superior improvement in the key secondary endpoint, FEV1 AUC0–4h and statistically significant improvements in other lung functions (trough FVC, peak FEV1, and peak FVC) were observed with QVA149 treatment compared with SFC treatment. Thus, the LANTERN study provides further evidence for the superiority of LABA/LAMA combination therapy over LABA/ICS for improvement in lung function, as has been previously demonstrated by other studies.19,24
The current GOLD strategy document recommends that the use of ICS is reserved for patients with severe or very severe airflow limitation and/or ≥2 exacerbations per year (GOLD groups C and D).5 This recommendation is based on data from earlier studies, which indicated that patients with a history of frequent exacerbations were more likely to benefit from ICS treatment.6–8 Although GOLD recommends ICS/LABA as a first choice for groups C and D, there is evidence that the majority of these patients are in these GOLD categories due to low lung function and symptoms (mMRC or CAT) rather than frequent exacerbations.25 The benefit of ICS-based therapy in these patients has not been adequately tested. Despite these recommendations, ICS is often misused by being prescribed earlier in the course of the disease to more moderate COPD patients,9–11 although a number of side-effects are associated with ICS.26–30 When COPD severity was classified according to FEV1,21 47% and 45.8% of patients in the QVA149 and SFC treatment arms, respectively, were classified as having severe COPD. While almost 50% of the patients met the GOLD criteria for group D, most of these patients were in GOLD D due to having an FEV1 <50% predicted and not due to frequent exacerbations, and QVA149 treatment was superior in this group. For patients with ≤1 exacerbation that are in GOLD D because of airflow limitation, results from LANTERN suggest that these patients should be receiving a LABA/LAMA instead of LABA/ICS.
An important outcome from LANTERN is the effect of QVA149 treatment on COPD moderate or severe exacerbations, when compared with LABA/ICS. Central to COPD management is the prevention of exacerbations.31 Previous studies have demonstrated the ability of LABA32 and LAMA33 monotherapies and LABA/ICS34 to reduce the exacerbation rates in COPD when compared to placebo. In the INSPIRE (Investigating New Standards for Prophylaxis In Reducing Exacerbations) study,35 LAMA monotherapy was comparable to LABA/ICS in terms of the rate of exacerbations experienced by COPD patients. In the LANTERN study, patients receiving QVA149 had a significant reduction in moderate or severe exacerbations when compared to those receiving SFC.
LANTERN confirms the results of the ILLUMINATE study,18 while also building upon this data. A post hoc analysis of ILLUMINATE demonstrated that QVA149 delayed the time to first exacerbation when compared with SFC in a population in which 19.8% of patients had severe COPD.18,19 In the LANTERN study, the hazard ratio for the time to first moderate or severe exacerbation was also significantly delayed in a study population in which almost half the cases were classified as severe (GOLD D) and had a lower mean postbronchodilator FEV1 at baseline when compared to the ILLUMINATE population. Significant improvements in lung function with QVA149 might be the reason for the reduction in the risk of exacerbations. It has been demonstrated in a Swedish study that QVA149 is cost effective when compared with SFC, whereby the total estimated costs associated with the drug, maintenance, exacerbation, pneumonia, and indirect costs were lower and resulted in better outcomes with QVA149 when compared with SFC.36
A further study of 52 weeks’ duration that is currently ongoing and builds upon previous findings37 is specifically examining the impact of QVA149 and SFC on COPD exacerbation rates in a larger patient population including patients with very severe COPD, and all of whom have had a history of moderate–severe exacerbations in the last year (FLAME study; NCT01782326).38
The management and reduction of symptoms is an essential goal of COPD treatment, because of the impact that symptoms, such as dyspnea, has on the patients’ quality of life. In this study, superior bronchodilation provided by QVA149 did not translate into significant differences in symptom control versus SFC. QVA149 was comparable with SFC in improving TDI focal score, and in reducing the SGRQ total score and the CAT total score after 26 weeks. While both QVA149 and SFC demonstrated comparable improvements in the TDI focal score and SGRQ total score from baseline after 26 weeks, the percentage of patients who achieved MCID in both of these endpoints was numerically higher with QVA149 versus SFC.
In the LANTERN study, QVA149 demonstrated a good safety profile, similar to that observed in previous studies.18,39 The overall incidence of AEs was lower in the QVA149 group compared with SFC. The use of ICS in COPD is associated with an increased risk of pneumonia,26,40–42 which was reflected in this study, where SFC showed a threefold higher incidence of pneumonia compared with QVA149. There was also a higher number of AEs leading to hospitalization observed in the SFC group compared to the QVA149 group. The safety profile of QVA149 in this study was consistent with earlier studies, which demonstrated that QVA149 was well tolerated39 and the overall safety profile is comparable to placebo and its monocomponents.43,44
There are limitations to this study that have to be acknowledged. Firstly, with regards to the study population, a full range of COPD severities was not included. Future studies will include very severe COPD patients and evaluate the impact of QVA149 on this population. Another limitation is that the patient-reported outcomes (PROs) did not parallel the improvement in lung function observed with QVA149 when compared with SFC. While some of the data were numerically better with QVA149 treatment, statistical significance was not achieved. This confirms the data thus far available, as discussed in the recent review by Ridolo et al.45 This could be due to how patients perceive their COPD symptoms impacting PROs.46 It is also unclear if PROs are sensitive enough to pick up differences between highly active therapies; hence, in the LANTERN study, the superiority of QVA149 over SFC in lung function data was not reflected in terms of significant differences in the PROs. Another potential limitation of this study is the relatively short duration (26 weeks), over which exacerbations were measured and compared with prior studies that investigated this endpoint. Importantly, there was a higher proportion of patients randomized to SFC who had a prior history of moderate or severe exacerbations at baseline, but that was a random phenomenon. However, this imbalance was accounted for in the prespecified statistical model. The results were further supported by the post hoc subgroup analyses (those with and without a history of exacerbations at baseline). In both subgroups of patients, a reduction in the rate of moderate or severe exacerbations with QVA149 compared with SFC was observed. The absence of inconsistent results suggests an interesting observation, which may be clinically meaningful.
In conclusion, the LANTERN study confirms the potential of QVA149 as a treatment option for symptomatic COPD patients with a history of ≤1 exacerbation in the previous year, offering additional benefits over LABA/ICS combinations. This study builds upon the good safety profile previously reported for QVA149,44 and further supports QVA149 as a treatment option that can result in significantly reducing moderate or severe COPD exacerbations. Thus, LANTERN contributes to the understanding of the optimal therapy for patients at risk of exacerbation.
Details of, and a complete list of, the LANTERN study Investigators may be found in the online Supplementary materials. This study is registered at ClinicalTrials.gov with clinical trial NLM identifier number: NCT01709903. This study was sponsored by Novartis Pharma AG. The authors would like to thank patients and staff at the participating centers. The authors also thank David Bergin and Santanu Sannigrahi (professional medical writers; Novartis) for assistance in the preparation of this paper. Writing support was funded by the study sponsor. This study was published as an abstract and presented at the European Respiratory Society International Congress 2014, Munich, Germany, 6–10 September 2014.
N Zhong, C Wang, X Zhou, and N Zhang coordinated the investigator centers, collected clinical data, and contributed to the writing of the manuscript. M Humphries centrally coordinated, educated, and monitored the centers. M Humphries, L Wang, C Thach, F Patalano, and D Banerji helped with the study design, oversaw statistical analyses, and helped to write the manuscript.
This study was sponsored by Novartis Pharma AG. M Humphries, L Wang, C Thach, F Patalano, and D Banerji are employees of the study sponsor, Novartis. The authors report no other conflicts of interest in this work.
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