Stiolto Drug Information
Generic name: TIOTROPIUM BROMIDE AND OLODATEROL
Uses of Stiolto
Maintenance Treatment of
COPD STIOLTO RESPIMAT is a combination of tiotropium bromide and olodaterol indicated for long-term, once-daily maintenance treatment of patients with chronic obstructive pulmonary disease (COPD), including chronic bronchitis and/or emphysema. Important Limitations of Use STIOLTO RESPIMAT is not indicated to treat acute deteriorations of COPD. STIOLTO RESPIMAT is not indicated to treat asthma. The safety and effectiveness of STIOLTO RESPIMAT in asthma have not been established.
Dosage & Administration of Stiolto
Recommended Dosage
The recommended dosage of STIOLTO RESPIMAT is two inhalations once-daily at the same time of the day. Do not use STIOLTO RESPIMAT more than two inhalations every 24 hours.
Administration Information For oral inhalation only.
Prior to first use, the STIOLTO RESPIMAT cartridge is inserted into the STIOLTO RESPIMAT inhaler and the unit is primed. When using the unit for the first time, patients are to actuate the inhaler toward the ground until an aerosol cloud is visible and then repeat the process three more times. The unit is then considered primed and ready for use.
If not used for more than 3 days, patients are to actuate the inhaler once to prepare the inhaler for use. If not used for more than 21 days, patients are to actuate the inhaler until an aerosol cloud is visible and then repeat the process three more times to prepare the inhaler for use . No dosage adjustment is required for geriatric, hepatically-impaired, or renally-impaired patients. However, patients with moderate to severe renal impairment given STIOLTO RESPIMAT should be monitored closely for anticholinergic effects .
Side Effects of Stiolto
Clinical Trials Experience in Chronic Obstructive Pulmonary Disease
Because clinical trials are conducted under widely varying conditions, the incidence of adverse reactions observed in the clinical trials of a drug cannot be directly compared to the incidences in the clinical trials of another drug and may not reflect the incidences observed in practice. The clinical program for STIOLTO RESPIMAT included 7,151 subjects with COPD in two 52-week active-controlled trials, one 12-week placebo-controlled trial, three 6-week placebo-controlled cross-over trials, and four additional trials of shorter duration. A total of 1,988 subjects received at least 1 dose of STIOLTO RESPIMAT. Adverse reactions observed in the ≤12-week trials were consistent with those observed in the 52-week trials, which formed the primary safety database.
The primary safety database consisted of pooled data from the two 52-week double-blind, active-controlled, parallel group confirmatory clinical trials (Trials 1 and 2). These trials included 5,162 adult COPD patients (72.9% males and 27.1% females) 40 years of age and older. Of these patients, 1,029 were treated with STIOLTO RESPIMAT once daily. The STIOLTO RESPIMAT group was composed of mostly Caucasians (71.1%) with a mean age of 63.8 years and a mean percent predicted FEV 1 at baseline of 43.2%. In these two trials, tiotropium 5 mcg and olodaterol 5 mcg were included as active control arms and no placebo was used.
In these two clinical trials, 74% of patients exposed to STIOLTO RESPIMAT reported an adverse reaction compared to 76.6% and 73.3% in the olodaterol 5 mcg and tiotropium 5 mcg groups, respectively. The proportion of patients who discontinued due to an adverse reaction was 7.4% for STIOLTO RESPIMAT treated patients compared to 9.9% and 9.0% for olodaterol 5 mcg and tiotropium 5 mcg treated patients. The adverse reaction most commonly leading to discontinuation was worsening COPD. The most common serious adverse reactions were COPD exacerbation and pneumonia.
Table 1 shows all adverse drug reactions that occurred with an incidence of >3% in the STIOLTO RESPIMAT treatment group and a higher incidence rate than the active comparator groups listed. Table 1 Number and frequency of adverse drug reactions greater than 3% (and higher than any of the comparators tiotropium and/or olodaterol) in COPD patients exposed to STIOLTO RESPIMAT: Pooled data from the two 52-week, double-blind, active-controlled clinical trials in COPD patients 40 years of age and older Treatment STIOLTO RESPIMAT (once daily) Tiotropium (5 mcg once daily) Olodaterol (5 mcg once daily) Body system (adverse drug reaction) n=1,029 n (%) n=1,033 n (%) n=1,038 n (%) Infections and infestations Nasopharyngitis 128 121 131 Respiratory, thoracic, and mediastinal disorders Cough 40 45 31 Musculoskeletal and connective tissue disorders Back Pain 37 19 35 Other adverse drug reactions in patients receiving STIOLTO RESPIMAT that occurred in ≤3% of patients in clinical studies are listed below: Metabolism and nutrition disorders: dehydration Nervous system disorders: dizziness, insomnia Eye disorders: glaucoma, intraocular pressure increased, vision blurred Cardiac/vascular disorders: atrial fibrillation, palpitations, supraventricular tachycardia, tachycardia, hypertension Respiratory, thoracic, and mediastinal disorders: epistaxis, pharyngitis, dysphonia, bronchospasm, laryngitis, sinusitis Gastrointestinal disorders: dry mouth, constipation, oropharyngeal candidiasis, dysphagia, gastroesophageal reflux disease, gingivitis, glossitis, stomatitis, intestinal obstruction including ileus paralytic Skin and subcutaneous disorders: rash, pruritus, angioneurotic edema, urticaria, skin infection, and skin ulcer, dry skin, hypersensitivity (including immediate reactions) Musculoskeletal and connective tissue disorders: arthralgia, joint swelling Renal and urinary disorders: urinary retention, dysuria, and urinary tract infection COPD Exacerbation Reduction Trial In a one year trial (Trial 5) of 7,880 patients to compare rates of COPD exacerbations, 3,939 patients were treated with STIOLTO RESPIMAT and 3,941 patients were treated with tiotropium 5 mcg inhalation spray. The safety profile of STIOLTO RESPIMAT was similar to that of tiotropium 5 mcg inhalation spray and consistent with that documented in the STIOLTO RESPIMAT primary safety database.
Warnings & Cautions for Stiolto
Serious Asthma-Related Events – Hospitalizations, Intubations, Death
The safety and efficacy of STIOLTO RESPIMAT in patients with asthma have not been established. STIOLTO RESPIMAT is not indicated for the treatment of asthma . Use of long-acting beta 2 -adrenergic agonists (LABA) as monotherapy for asthma is associated with an increased risk of asthma-related death. Available data from controlled clinical trials also suggest that use of LABA as monotherapy increases the risk of asthma-related hospitalization in pediatric and adolescent patients.
These findings are considered a class effect of LABA monotherapy. When LABA are used in fixed-dose combination with ICS, data from large clinical trials do not show a significant increase in the risk of serious asthma-related events (hospitalizations, intubations, death) compared with ICS alone. A 28-week, placebo-controlled US study comparing the safety of another LABA (salmeterol) with placebo, each added to usual asthma therapy, showed an increase in asthma-related deaths in patients receiving salmeterol (13/13,176 in patients treated with salmeterol vs. 3/13,179 in patients treated with placebo; RR 4.37, 95% CI 1.25, 15.34). The increased risk of asthma-related death is considered a class effect of LABA, including olodaterol, one of the active ingredients in STIOLTO RESPIMAT. No study adequate to determine whether the rate of asthma-related death is increased in patients treated with STIOLTO RESPIMAT has been conducted.
Available data do not suggest an increased risk of death with use of LABA in patients with COPD.
Deterioration of Disease and Acute Episodes
STIOLTO RESPIMAT should not be initiated in patients with acutely deteriorating COPD, which may be a life-threatening condition. STIOLTO RESPIMAT has not been studied in patients with acutely deteriorating COPD. The use of STIOLTO RESPIMAT in this setting is inappropriate. STIOLTO RESPIMAT should not be used for the relief of acute symptoms, i.e., as rescue therapy for the treatment of acute episodes of bronchospasm.
STIOLTO RESPIMAT has not been studied in the relief of acute symptoms and extra doses should not be used for that purpose. Acute symptoms should be treated with an inhaled short-acting beta 2 -agonist. When beginning STIOLTO RESPIMAT, patients who have been taking inhaled, short-acting beta 2 -agonists on a regular basis (e.g., four times a day) should be instructed to discontinue the regular use of these drugs and use them only for symptomatic relief of acute respiratory symptoms.
When prescribing STIOLTO RESPIMAT, the healthcare provider should also prescribe an inhaled, short-acting beta 2 -agonist and instruct the patient on how it should be used. Increasing inhaled beta 2 -agonist use is a signal of deteriorating disease for which prompt medical attention is indicated. COPD may deteriorate acutely over a period of hours or chronically over several days or longer.
If STIOLTO RESPIMAT no longer controls symptoms of bronchoconstriction, or the patient's inhaled, short-acting beta 2 -agonist becomes less effective or the patient needs more inhalation of short-acting beta 2 -agonist than usual, these may be markers of deterioration of disease. In this setting, a re-evaluation of the patient and the COPD treatment regimen should be undertaken at once. Increasing the daily dosage of STIOLTO RESPIMAT beyond the recommended dosage is not appropriate in this situation.
Excessive Use of
STIOLTO RESPIMAT and Use With Other Long-Acting Beta 2 -Agonists As with other inhaled drugs containing beta 2 -adrenergic agents, STIOLTO RESPIMAT should not be used more often than recommended, at higher doses than recommended, or in conjunction with other medications containing long-acting beta 2 -agonists, as an overdose may result. Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs.
Immediate Hypersensitivity Reactions Immediate hypersensitivity reactions, including urticaria, angioedema (including swelling of
the lips, tongue or throat), rash, bronchospasm, anaphylaxis, or itching may occur after administration of STIOLTO RESPIMAT. If such a reaction occurs, therapy with STIOLTO RESPIMAT should be stopped at once and alternative treatments should be considered. Given the similar structural formula of atropine to tiotropium, patients with a history of hypersensitivity reactions to atropine or its derivatives should be closely monitored for similar hypersensitivity reactions to STIOLTO RESPIMAT.
Paradoxical Bronchospasm As with other inhaled medicines
STIOLTO RESPIMAT may cause paradoxical bronchospasm that may be life-threatening. If paradoxical bronchospasm occurs, STIOLTO RESPIMAT should be stopped immediately and alternative therapy instituted.
Cardiovascular Effects Olodaterol, like other beta 2 -agonists, can produce a clinically
significant cardiovascular effect in some patients as measured by increases in pulse rate, systolic or diastolic blood pressure, and/or symptoms. If such effects occur, STIOLTO RESPIMAT may need to be discontinued. In addition, beta-agonists have been reported to produce ECG changes, such as flattening of the T wave, prolongation of the QTc interval, and ST segment depression.
The clinical significance of these findings is unknown. Long acting beta 2 -adrenergic agonists should be administered with caution in patients with cardiovascular disorders, especially coronary insufficiency, cardiac arrhythmias, hypertrophic obstructive cardiomyopathy, and hypertension.
Coexisting Conditions Olodaterol, like other sympathomimetic amines, should be used with caution
in patients with convulsive disorders or thyrotoxicosis, in patients with known or suspected prolongation of the QT interval, and in patients who are unusually responsive to sympathomimetic amines. Doses of the related beta 2 -agonist albuterol, when administered intravenously, have been reported to aggravate pre-existing diabetes mellitus and ketoacidosis.
Worsening of Narrow-Angle Glaucoma
STIOLTO RESPIMAT should be used with caution in patients with narrow-angle glaucoma. Prescribers and patients should be alert for signs and symptoms of acute narrow-angle glaucoma (e.g., eye pain or discomfort, blurred vision, visual halos or colored images in association with red eyes from conjunctival congestion and corneal edema). Instruct patients to consult a physician immediately should any of these signs or symptoms develop.
Worsening of Urinary Retention
STIOLTO RESPIMAT should be used with caution in patients with urinary retention. Prescribers and patients should be alert for signs and symptoms of prostatic hyperplasia or bladder-neck obstruction (e.g., difficulty passing urine, painful urination), especially in patients with prostatic hyperplasia or bladder neck obstruction. Instruct patients to consult a physician immediately should any of these signs or symptoms develop. 5.10 Renal Impairment Because tiotropium is a predominantly renally excreted drug, patients with moderate to severe renal impairment (creatinine clearance of <60 mL/min) treated with STIOLTO RESPIMAT should be monitored closely for anticholinergic side effects . 5.11 Hypokalemia and Hyperglycemia Beta-adrenergic agonists may produce significant hypokalemia in some patients, which has the potential to produce adverse cardiovascular effects . The decrease in serum potassium is usually transient, not requiring supplementation.
Inhalation of high doses of beta 2 -adrenergic agonists may produce increases in plasma glucose. In patients with severe COPD, hypokalemia may be potentiated by hypoxia and concomitant treatment , which may increase the susceptibility for cardiac arrhythmias. Clinically notable decreases in serum potassium or changes in blood glucose were infrequent during clinical studies with long-term administration of olodaterol with the rates similar to those for placebo controls.
Olodaterol has not been investigated in patients whose diabetes mellitus is not well controlled.
Drug Interactions with Stiolto
Adrenergic Drugs
If additional adrenergic drugs are to be administered by any route, they should be used with caution because the sympathetic effects of olodaterol, one component of STIOLTO RESPIMAT, may be potentiated .
Sympathomimetics, Xanthine Derivatives, Steroids, or Diuretics Tiotropium has been used concomitantly with
short-acting and long-acting sympathomimetic (beta-agonists) bronchodilators, methylxanthines, and oral and inhaled steroids, without increases in adverse reactions. Concomitant treatment with xanthine derivatives, steroids, or diuretics may potentiate any hypokalemic effect of olodaterol .
Non-Potassium Sparing Diuretics
The ECG changes and/or hypokalemia that may result from the administration of non-potassium sparing diuretics (such as loop or thiazide diuretics) can be acutely worsened by beta-agonists, especially when the recommended dosage of the beta-agonist is exceeded. Although the clinical significance of these effects is not known, caution is advised in the co-administration of STIOLTO RESPIMAT with non-potassium sparing diuretics.
Monoamine Oxidase Inhibitors, Tricyclic Antidepressants, QTc Prolonging Drugs
STIOLTO RESPIMAT, as with other drugs containing beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors or tricyclic antidepressants or other drugs known to prolong the QTc interval because the action of adrenergic agonists on the cardiovascular system may be potentiated by these agents. Drugs that are known to prolong the QTc interval may be associated with an increased risk of ventricular arrhythmias.
Beta-Blockers Beta-adrenergic receptor antagonists (beta-blockers) and the olodaterol component of
STIOLTO RESPIMAT may interfere with the effect of each other when administered concurrently. Beta-blockers not only block the therapeutic effects of beta-agonists, but may produce severe bronchospasm in COPD patients. Therefore, patients with COPD should not normally be treated with beta-blockers.
However, under certain circumstances, e.g., as prophylaxis after myocardial infarction, there may be no acceptable alternatives to the use of beta-blockers in patients with COPD. In this setting, cardioselective beta-blockers could be considered, although they should be administered with caution.
Anticholinergics
There is potential for an additive interaction with concomitantly used anticholinergic medications. Therefore, avoid co-administration of STIOLTO RESPIMAT with other anticholinergic-containing drugs as this may lead to an increase in anticholinergic adverse effects .
Inhibitors of Cytochrome P450 and P-gp Efflux Transporter
In a drug interaction study using the strong dual CYP and P-gp inhibitor ketoconazole, a 1.7-fold increase of olodaterol maximum plasma concentrations and AUC was observed . Olodaterol was evaluated in clinical trials for up to one year at doses up to twice the recommended therapeutic dosage. No dosage adjustment of STIOLTO RESPIMAT is necessary.
Pregnancy Safety for Stiolto
Pregnancy Risk Summary There are no adequate and well-controlled clinical studies with STIOLTO RESPIMAT or its individual components, tiotropium bromide and olodaterol, in pregnant women to inform of drug-associated risk of adverse pregnancy-related outcomes. Animal reproduction studies were conducted with the individual components of STIOLTO RESPIMAT, tiotropium bromide and olodaterol. There are clinical considerations with the use of STIOLTO RESPIMAT in pregnant women (see Clinical Considerations ). STIOLTO RESPIMAT should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
Based on animal reproduction studies, no structural abnormalities were observed when tiotropium was administered by inhalation to pregnant rats and rabbits during the period of organogenesis at doses 790 and 8 times, respectively, the maximum recommended human daily inhalation dose (MRHDID). Increased post-implantation loss was observed in rats and rabbits administered tiotropium at maternally toxic doses 430 times and 40 times the MRHDID, respectively (see Data ). Based on animal studies, olodaterol was not teratogenic when administered to pregnant rats or rabbits during organogenesis at inhalation doses of approximately 2,731 or 1,353 times the MRHDID (on an AUC basis), in rats or rabbits, respectively (see Data ). The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Clinical Considerations Labor and Delivery There are no adequate and well-controlled human studies that have investigated the effects of STIOLTO RESPIMAT on preterm labor or labor at term. Because of the potential for beta-agonist interference with uterine contractility, use of STIOLTO RESPIMAT during labor should be restricted to those patients in whom the benefits clearly outweigh the risks. Data Animal Data Animal reproduction studies with the combination of tiotropium and olodaterol are not available; however, studies are available with the individual components.
Tiotropium In 2 separate embryo-fetal development studies, pregnant rats and rabbits received tiotropium during the period of organogenesis at doses up to approximately 790 and 8 times the MRHDID, respectively (on a mcg/m 2 basis at inhalation doses of 1,471 and 7 mcg/kg/day in rats and rabbits, respectively). No evidence of structural abnormalities was observed in rats or rabbits. However, in rats, tiotropium caused fetal resorption, litter loss, decreases in the number of live pups at birth and the mean pup weights, and a delay in pup sexual maturation at tiotropium doses of approximately 40 times the MRHDID (on a mcg/m 2 basis at a maternal inhalation dose of 78 mcg/kg/day). In rabbits, tiotropium caused an increase in post-implantation loss at a tiotropium dose of approximately 430 times the MRHDID (on a mcg/m 2 basis at a maternal inhalation dose of 400 mcg/kg/day). Such effects were not observed at approximately 5 and 95 times the MRHDID, respectively (on a mcg/m 2 basis at inhalation doses of 9 and 88 mcg/kg/day in rats and rabbits, respectively). Olodaterol Olodaterol was not teratogenic in rats at inhalation doses approximately 2,731 times the MRHDID (on an AUC basis at a maternal inhalation dose of 1,054 mcg/kg/day). No significant effects occurred in rabbits at inhalation doses approximately 1,353 times the MRHDID in adults (on an AUC basis at a maternal inhalation dose of 974 mcg/kg/day). Placental transfer of olodaterol was observed in pregnant rats. Olodaterol has been shown to be teratogenic in New Zealand rabbits at inhalation doses approximately 7,130 times the MRHDID in adults (on an AUC basis at a maternal inhalation dose of 2,489 mcg/kg/day). Olodaterol exhibited the following fetal toxicities: enlarged or small heart atria or ventricles, eye abnormalities, and split or distorted sternum.
Pediatric Use of Stiolto
Pediatric Use COPD does not normally occur in children. The safety and effectiveness of STIOLTO RESPIMAT in the pediatric population has not been established.
Contraindications for Stiolto
Use of a LABA, including STIOLTO RESPIMAT, without an inhaled corticosteroid is contraindicated in patients with asthma . STIOLTO RESPIMAT is not indicated for the treatment of asthma. STIOLTO RESPIMAT is contraindicated in patients with a hypersensitivity to tiotropium, ipratropium, olodaterol, or any component of this product . In clinical trials and postmarketing experience with tiotropium, immediate hypersensitivity reactions, including angioedema (including swelling of the lips, tongue, or throat), itching, or rash have been reported. Hypersensitivity reactions were also reported in clinical trials with STIOLTO RESPIMAT. Use of a LABA, including STIOLTO RESPIMAT, without an inhaled corticosteroid is contraindicated in patients with asthma.
Hypersensitivity to tiotropium, ipratropium, olodaterol, or any component of this product.
Overdosage Information for Stiolto
contains both tiotropium bromide and olodaterol; therefore, the risks associated with overdosage for the individual components described below apply to STIOLTO RESPIMAT. Tiotropium High doses of tiotropium may lead to anticholinergic signs and symptoms. However, there were no systemic anticholinergic adverse effects following a single inhaled dose of up to 282 mcg tiotropium in 6 healthy volunteers. In a study of 12 healthy volunteers, bilateral conjunctivitis and dry mouth were seen following repeated once-daily inhalation of 141 mcg of tiotropium.
Dry mouth/throat and dry nasal mucosa occurred in a dose-dependent manner, were observed following 14-day dosing of up to 40 mcg tiotropium bromide inhalation solution in healthy subjects. Olodaterol The expected signs and symptoms with overdosage of olodaterol are those of excessive beta-adrenergic stimulation and occurrence or exaggeration of any of the signs and symptoms, e.g., myocardial ischemia, angina pectoris, hypertension or hypotension, tachycardia, arrhythmias, palpitations, dizziness, nervousness, insomnia, anxiety, headache, tremor, dry mouth, muscle spasms, nausea, fatigue, malaise, hypokalemia, hyperglycemia, and metabolic acidosis. As with all inhaled sympathomimetic medications, cardiac arrest and even death may be associated with an overdose of olodaterol.
Treatment of overdosage consists of discontinuation of STIOLTO RESPIMAT together with institution of appropriate symptomatic and supportive therapy. The judicious use of a cardioselective beta-receptor blocker may be considered, bearing in mind that such medication can produce bronchospasm. There is insufficient evidence to determine if dialysis is beneficial for overdosage of STIOLTO RESPIMAT. Cardiac monitoring is recommended in cases of overdosage.
Clinical Studies of Stiolto
The safety and efficacy of STIOLTO RESPIMAT were evaluated in a clinical development program that included three dose ranging trials, two active-controlled trials, three active- and placebo-controlled trials, and one placebo-controlled trial. The efficacy of STIOLTO RESPIMAT is based primarily on two 4-week dose-ranging trials in 592 COPD patients and two confirmatory active-controlled 52-week trials (Trials 1 and 2) in 5,162 COPD patients. Dose-Ranging Trials Dose selection for STIOLTO RESPIMAT was primarily based on trials for the individual components, tiotropium bromide and olodaterol.
Dose selection was also supported by two randomized, double-blind, active-controlled, 4-week trials. In one trial in 232 patients with COPD, three tiotropium doses (1.25, 2.5, and 5 mcg) were given in combination with olodaterol 5 or 10 mcg and were evaluated compared to olodaterol monotherapy. Results demonstrated improvement in trough FEV 1 for the combination when compared to olodaterol alone.
The difference in trough FEV 1 for the tiotropium bromide/olodaterol doses of 1.25/5, 2.5/5, and 5/5 mcg once daily from olodaterol 5 mcg were 0.054 L (95% CI 0.016, 0.092), 0.065 L, and 0.084 L, respectively. In the second trial in 360 patients with COPD, three olodaterol doses (2, 5, and 10 mcg) were given in combination with tiotropium 5 mcg and were evaluated compared to tiotropium monotherapy. The difference in trough FEV 1 for the tiotropium/olodaterol doses of 5/2, 5/5, and 5/10 mcg once daily from tiotropium 5 mcg were 0.024 L (95% CI -0.029, 0.076), 0.033 L (-0.019, 0.085), and 0.057 L, respectively.
Results of these trials supported the evaluation of once-daily doses of tiotropium bromide/olodaterol 2.5/5 mcg and 5/5 mcg in the confirmatory trials. Confirmatory Trials A total of 5,162 COPD patients (1,029 receiving STIOLTO RESPIMAT, 1,038 receiving olodaterol 5 mcg, and 1,033 receiving tiotropium bromide 5 mcg) were studied in two confirmatory trials of STIOLTO RESPIMAT. Trials 1 and 2 were 52-week, replicate, randomized, double-blind, active controlled, parallel group trials that compared STIOLTO RESPIMAT to tiotropium 5 mcg and olodaterol 5 mcg. In these trials, all products were administered via the RESPIMAT inhaler.
The trials enrolled patients 40 years of age or older with a clinical diagnosis of COPD, a smoking history of more than 10 pack-years, and moderate to very severe pulmonary impairment (post-bronchodilator FEV 1 less than 80% predicted normal ; post-bronchodilator FEV 1 to FVC ratio of less than 70%). All treatments were administered once daily in the morning. The primary endpoints were change from baseline in FEV 1 AUC 0-3hr and trough FEV 1 after 24 weeks of treatment. The majority of the 5162 patients were male (73%), white (71%) or Asian (25%), with a mean age of 64.0 years.
Mean post-bronchodilator FEV 1 was 1.37 L (GOLD 2, GOLD 3, GOLD 4 ). Mean beta 2 -agonist responsiveness was 16.6% of baseline (0.171 L). Pulmonary medications allowed as concomitant therapy included inhaled steroids and xanthines. In both Trials 1 and 2, STIOLTO RESPIMAT demonstrated significant improvements in FEV 1 AUC 0-3hr and trough FEV 1 after 24 weeks compared to tiotropium 5 mcg and olodaterol 5 mcg (Table 2). The increased bronchodilator effects of STIOLTO RESPIMAT compared to tiotropium 5 mcg and olodaterol 5 mcg were maintained throughout the 52-week treatment period. STIOLTO RESPIMAT displayed a mean increase in FEV 1 from baseline of 0.137 L (range: 0.133-0.140 L) within 5 minutes after the first dose.
Patients treated with STIOLTO RESPIMAT used less rescue medication compared to patients treated with tiotropium 5 mcg and olodaterol 5 mcg. Table 2 FEV 1 AUC 0-3hr and Trough FEV 1 response for STIOLTO RESPIMAT compared to tiotropium 5 mcg and olodaterol 5 mcg after 24 weeks (primary endpoints; Trials 1 and 2) Trial 1 Trial 2 n Mean (L) Difference (L) (95% CI) n Mean (L) Difference (L) (95% CI) Pre-treatment baseline FEV 1 : Trial 1=1.16 L; Trial 2=1.15 L p≤0.0001 for all comparisons between STIOLTO RESPIMAT and the monotherapies. FEV 1 AUC 0-3hr response STIOLTO RESPIMAT 522 0.256 - 502 0.268 - Tiotropium 5 mcg 526 0.139 0.117 500 0.165 0.103 Olodaterol 5 mcg 525 0.133 0.123 507 0.136 0.132 Trough FEV 1 response STIOLTO RESPIMAT 521 0.136 - 497 0.145 - Tiotropium 5 mcg 520 0.065 0.071 498 0.096 0.050 Olodaterol 5 mcg 519 0.054 0.082 503 0.057 0.088 For the subset of patients (n=521) who completed extended lung function measurements up to 12 hours post-dose, STIOLTO RESPIMAT showed a significantly greater FEV 1 response compared to tiotropium 5 mcg and olodaterol 5 mcg over the full 24-hour dosing interval.
Results from Trial 2 are shown in Figure 1. Figure 1 FEV 1 profile for STIOLTO RESPIMAT, tiotropium 5 mcg and olodaterol 5 mcg over a 24-hour dosing interval after 24 weeks (12 hr PFT subset from Trial 2) The St. George's Respiratory Questionnaire (SGRQ) was assessed in Trials 1 and 2 and in two additional 12-week placebo-controlled trials (Trials 3 and 4). In the first 12-week trial, SGRQ responder rates at week 12 (defined as an improvement in score of 4 or more as a threshold) were 53%, 42%, and 31% for STIOLTO RESPIMAT, tiotropium 5 mcg, and placebo, respectively, with odds ratios of 1.6 (95% CI 1.1, 2.4) and 2.5 (95% CI 1.6, 3.8) for STIOLTO RESPIMAT vs. tiotropium 5 mcg and STIOLTO RESPIMAT vs. placebo, respectively. In the second 12-week trial, results were similar with odds ratios of 1.5 (95% CI 1.0, 2.3) and 2.2 (95% CI 1.5, 3.4) for STIOLTO RESPIMAT vs. tiotropium 5 mcg and STIOLTO RESPIMAT vs. placebo, respectively.
For the 52-week trials similar responder rates were seen. In Trial 1, the odds ratios for STIOLTO vs. tiotropium 5 mcg and STIOLTO vs. olodaterol 5 mcg at week 24 were 1.6 (95% CI 1.2, 2.0) and 1.9 (95% CI 1.5, 2.4), respectively. The results were similar in the 52-week Trial 2, with odds ratios for STIOLTO vs. tiotropium 5 mcg and STIOLTO vs. olodaterol 5 mcg of 1.3 (95% CI 1.0, 1.7) and 1.5 (95% CI 1.1, 1.9), respectively.
Exacerbations Tiotropium 5 mcg Trials Evaluating Exacerbations The effect of tiotropium 5 mcg inhalation spray on exacerbations was evaluated in three 48-week randomized, double-blind, placebo-controlled clinical trials that included COPD exacerbations as the primary endpoint. Exacerbations of COPD were defined as a complex of lower respiratory events/symptoms (increase or new onset) related to the underlying COPD, with duration of three days or more, requiring a prescription of antibiotics and/or systemic steroids and/or hospitalization. In a pooled analysis of the first two trials, tiotropium 5 mcg significantly reduced the number of COPD exacerbations compared to placebo with a rate ratio of 0.78 (95% CI 0.67, 0.92). In the third trial, tiotropium 5 mcg delayed the time to first COPD exacerbation compared to placebo with a hazard ratio of 0.69 (95% CI 0.63, 0.77). STIOLTO RESPIMAT Trial Evaluating Exacerbations In a one-year, randomized, double-blind, active-controlled parallel group clinical trial (Trial 5), the effect of STIOLTO RESPIMAT on COPD exacerbations was compared with tiotropium 5 mcg inhalation spray.
Exacerbations were defined as above. Enrolled patients (3,939 patients receiving STIOLTO RESPIMAT and 3,941 patients receiving tiotropium 5 mcg inhalation spray) had a history of COPD exacerbation in the previous 12 months. The primary endpoint was the annualized rate of moderate to severe COPD exacerbations.
The majority of patients were male (71%) and Caucasian (79%). The mean age was 66 years, and mean post-bronchodilator FEV 1 percent predicted was 45%. STIOLTO RESPIMAT treatment did not demonstrate superiority to tiotropium 5 mcg inhalation spray for the primary endpoint, the annualized rate of moderate to severe COPD exacerbations, with a rate ratio of 0.93 (99% CI, 0.85-1.02, p=0.0498). The study did not reach the pre-specified significance level of 0.01. Figure 1
Drug information sourced from the FDA. This content is for informational purposes only and does not constitute medical advice. Consult a healthcare professional before making any medication decisions.
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