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+ Asthma, COPD, and Allergic Rhinitis Jennifer Toy, PharmD UW Medicine Harborview Family Medicine Clinic January 2015 + ASTHMA CASE 1 GD is a 56 yo male who comes to clinic c/o dyspnea and coughing that have progressively worsened over the past 2 days. Recently diagnosed with asthma ~ 1 mo ago. Reports inhaler is “not working.” Physical exam reveals audible wheezes, occasional coughing. Medications: Albuterol HFA inhaler 1-2 puffs q4-6h prn shortness of breath or cough Your evaluation should consist of … ? + 3 Point Evaluation – “3 T’s” Appropriate Therapy? Change – increase or decrease dose Initiate new therapy Stop/discontinue therapy Appropriate Technique? Tolerability? + Proper Inhaler Technique 10-25% of expelled medication will reach pulmonary system Remainder is deposited on the mouth, pharynx, esophagus, and stomach 40% of persons are NOT able to demonstrate proper inhaler technique + Proper Inhaler Technique Majority of medication accumulates on the throat and contributes to systemic side effects Use of proper technique or Aerochamber improves lung deposition and reduces systemic side effects Aerochamber improves lung deposition by 25% + Spacer vs Suspending Chamber + CASE 1 (continued) So how do we know the patient is using appropriate technique? + Proper Metered Dose Inhaler (MDI) Technique When using MDI for first time: Shake the inhaler for 5 seconds Prime the inhaler by pressing down the canister with the index finger to release the medication Press canister down again 3 times After an inhaler is used for the first time, no need to prime again UNLESS patient has not used for 2 weeks or more + Proper MDI Technique Shake canister vigorously for 5 seconds Uncap mouthpiece and check for loose objects in the device Breathe out normally Hold MDI upright Close lips around spacer OR if no spacer is available, close lips around mouthpiece or position it about 4 cm from the mouth Keep tongue away from the spacer opening or mouthpiece Exhale completely before MDI actuation Press down the top of the medication canister with the index finger to release the medication Slow deep inhalation (3-5 sec) until the lungs are completely filled + MDI Inhaler Technique Pearls One puff per inhalation Wait 60 seconds between puffs, or long enough to perform the next inhalation properly Shake canister again before use Recap mouthpiece Rinse mouth after using an ICS, and spit the water out rather than swallow it + MDI vs. Dry Powder Inhaler (DPI) DPI in response to CFC ban Powder requires different technique: Requires sufficient inspiratory effort for powder to reach lungs Does not require coordination Contains smaller particles Possibly improved lung deposition of medications Persons are unable to determine if they received the medication (no taste, no tactile sensation) + Dry Powder Inhaler (DPI) Technique For single-use devices, load a capsule into the device as directed Breath out slowly and completely (not into the mouthpiece) Place mouthpiece between the front teeth and seal lips around it Breathe in through the mouth quickly and deeply over 2-3 seconds Remove inhaler from mouth Hold breath for as long as possible ~10 seconds Breathe out slowly + Short-Acting Beta Agonists (SABAs or Rescue Inhalers) Beta-2 agonist Bronchodilator Increases cAMP, decreases intracellular calcium Produces smooth muscle relaxation Stabilizes mast-cells (minimal effect) +Inhaled SABAs Short-Acting Beta Agonist Duration Onset Albuterol Metaproterenol (no longer available) Terbutaline 3-6 hrs 4 hrs 1.5-4 hrs 5 mins 5-30 mins 5-30 mins 1-3 hrs 1-3 hrs 2-5 mins 1-5 mins Nonselective B-agonist: Isoproterenol Epinephrine + Inhaled Beta-Agonists PRN vs scheduled Asthma management vs exercise induced bronchospasm Monitor utilization of beta-agonist Improper technique Proper technique – relief indicates severity of asthma Use of SABA helps determine when to initiate inhaled steroids + CASE 2 – Asthma SM is 40 yo female with asthma presents to clinic with increasing SOB over the past few days. She is unable to complete sentences. What is your treatment of choice? What formulation? + MDI vs Nebulizer Outcomes Nebulizer Group Spacer Group P value Severity score improvement % 80.9 79.4 0.79 Final PEFR, % Predicted 79 76 0.61 Final Oxygen Saturation % 97 97 0.67 Mean # of Treatments 2.5 2.3 0.55 Steroid Administration % 44 54 0.26 Admission Rate % 6.2 5.6 0.89 Mean Treatment Time (mins) 103 66 <0.001 Vomiting % 20 8 <0.05 Mean increase in Heart Rate 15 5 <0.001 + MDI vs Nebulizer Albuterol Dose MDI 90 mcg/dose Neb 2.5mg/ampule MDI 2-4 puffs = 2.5mg Neb MDI + Spacer/Aerochamber is a MORE efficient delivery system than Nebulizer + Albuterol vs Levalbuterol Racemic Albuterol (S and R) and Levalbuterol (R-albuterol) Pediatric exacerbations randomized to nebulized Albuterol vs Levalbuterol 83% African American children Significantly lower hospitalization rate with levalbuterol LOS not significantly different Similar rates of side effects: HR, RR, and nausea Carl. J Ped 2003; 143:731-6. + SABAs Short-Acting Agonist Dosage Forms Strengths Cost Albuterol (Proventil, Ventolin, AccuNeb) Neb MDI 0.63 mg/3 ml 1.25 mg/3 ml 2.5 mg/3 ml 5 mg/ml Neb #25 = $17-40 MDI = $30-$78 90 mcg/puff Levalbuterol (Xopenex) Tabs Syrup 2 mg, 4 mg 2 mg/ 5 ml Tab #30 = $5 (cash $115-161) #120 ml = $14 Neb MDI 0.31 mg/neb 0.63 mg/neb 1.25 mg/neb Neb #24 = $147-173 Neb #24 = $147-173 Neb #24 = $147-173 45 mcg/puff MDI = $71-81 Short-Acting -Agonist Brands Dosing* Adults & Children 12 years Dosing* Children 5-11 years Dosing* Children 0-4 years Pearls Albuterol HFA Proventil Ventolin ProAir AccuNeb 2 puffs every 46 hours 2 puffs 5 min prior to exercise 1.25-5 mg neb every 4-6 hours 2 puffs every 46 hours 2 puffs 5 min prior to exercise 1.2-5 mg neb every 4-6 hours 2 puffs every 46 hours 1-2 puffs 5 min prior to exercise 0.63-2.5 mg neb every 4-6 hours Contains EtOH and Oleic Acid No Excipients Levalbuterol HFA* Xopenex 2 puffs every 46 hours 2 puffs 5 min prior to exercise 0.63-1.25 mg neb 3 times a day 2 puffs every 46 hours (Dose for 4-11 years) 0.31-0.63 mg neb 3 times a day MDI safety and efficacy not established 0.31-1.25 mg neb every 4-6 hours Contains EtOH and Oleic Acid *Prime 4 times before use *Usually used in COPD Pirbuterol Maxair 2 puff every 4-6 hours 2 puffs 5 min prior to exercise Safety and efficacy not established Safety and efficacy not established No longer available – phased out d/t CFC ban + + Acute Asthma Exacerbations Albuterol vs Albuterol + Ipratropium Efficacy: Pediatric and Adult studies demonstrate variable results and do not consistently show benefit Combination of Albuterol + Ipratropium may benefit patients with severe obstruction or FEV1 <50% + Albuterol and Ipratropium MDI or Nebulizer Strength Cost Albuterol HFA 90 mcg/puff MDI = $30-78 Ipratropium HFA (Atrovent) 18 mcg/puff MDI = $40-51 Albuterol/Ipratropium (Combivent) 103 mcg – 18 mcg/puff MDI = $320-375 Albuterol Neb 2.5 mg/3 ml Neb #24 = $16-40 Ipratropium Neb 0.2 mg/ml Neb #25 = $13-38 Albuterol/Ipratropium Neb (DuoNeb) 0.5mg-2.5mg/3 ml Neb #30 = $49-76 + Albuterol and Ipratropium MDI or Nebulizer Dosing*Adults and Children 12 years Dosing*Childr en 5-11 years Dosing* Children 0-4 years Albuterol HFA 2 puffs every 4-6 hours 2 puffs every 4-6 hours 2 puffs every 4-6 hours Ipratropium HFA (Atrovent) 2-4 puffs every 6 hours Safety and efficacy not established Safety and efficacy not established Safety and efficacy 2 puffs every 6 hours not established Safety and efficacy not established Albuterol Neb 1.25-5 mg neb every 4 hours 1.25-5 mg neb every 4 hours 0.63-2.5 mg neb every 4-6 hours Ipratropium Neb 500 mcg every 20 minutes, then as needed Safety and efficacy not established Safety and efficacy not established Albuterol/Ipratropium Neb (Duoneb) 3 ml every 4-6 hours Safety and efficacy not established Safety and efficacy not established Albuterol/Ipratropium (Combivent) + Home Acute Asthma Exacerbation Peak Flow (PF) < 50% Predicted Albuterol MDI 2-4 puffs every 20 mins OR Single nebulizer treatment PEF > 80% PEF 50-80% -Continue Albuterol every 3-4 hrs x 2-4 days -Continue Albuterol every 20-60 mins -Double inhaled steroid x 7-10 days -Oral steroid burst PEF < 50 % -Continue Albuterol every 20 mins -Oral steroid burst, call provider, or go to ED + ER Acute Asthma Exacerbation FEV1 or PEF > 50% -Albuterol MDI or Neb x 2 in the 1st hr -O2 to achieve O2 sat ≥ 90% -Oral steroids if no immediate response FEV1 or PEF < 50% -Albuterol MDI or Neb every 20 mins or continuously for 1 hr -O2 to achieve O2 sat ≥ 90% -Then Levalbuterol OR Albuterol AND Anticholinergic every 20 mins for 1 hr -Oral steroids Impending or actual respiratory arrest -Intubation or medical ventilation with 100% O2 -Nebulized Albuterol AND anticholinergic -IV steroid + CASE 3 – Acute Asthma Exacerbation You are about to prescribe prednisone for an acute exacerbation. How would you prescribe prednisone? Dose? Taper or no taper? + Steroid Bursts (Taper vs Non-Taper) Taper prednisone 10mg Take 4 tabs daily x 3 days Take 3 tabs daily x 3 days Take 2 tabs daily x 3 days Take 1 tab daily x 3 days then stop Non-Taper prednisone 20mg Take 2 tabs daily for 5-7 days or Take 3 tabs daily x 3 days then take 2 tabs daily x 3days then stop + CASE 4-Step Up Therapy JZ 25 yo male returns to the clinic after being prescribed albuterol He states the albuterol helps relieve his shortness of breath but it does not last long State requiring the albuterol at night about 3 times in the last month + Inhaled Corticosteroids (ICS) + Inhaled Corticosteroids (ICS) Inhaled Corticosteroids Brand Strengths Cost Budesonide DPI Pulmicort 90 mcg/puff 180 mcg/puff $161-194 $222-298 Beclomethasone MDI QVAR 40 mcg/puff 80 mcg/puff $176-188 $209-241 Flunisolide MDI Aerospan AeroBid (d/c-ed) 80 mcg/puff $201-225 Fluticasone Flovent HFA 44 mcg/puff 110 mcg/puff 220 mcg/puff 50 mcg, 100mcg, 250mcg/blister $181-194 $230-250 $363-382 $163-185 Flovent DPI Mometasone DPI Asmanex 110 mcg/puff 220 mcg/puff $194-230 $236-251 Ciclesonide MDI Alvesco 80 mcg/puff 160 mcg/puff $227-263 $227-262 Inhaled Corticosteroids Dosing* Adults and Children 12 years Dosing* Children 5-11 years Dosing* Children 04 years Budesonide (Pulmicort) Low Dose (180-600 mcg)/day Medium Dose (>600-1200 mcg)/day High Dose (>1200 mcg)/day Low Dose (180-400 mcg)/day Medium Dose (>400-800 mcg)/day High Dose (>800 mcg) *Can use Pulmicort Respules NA *Can use Pulmicort Respules Beclomethasone MDI (QVAR) Low Dose (80-240 mcg)/day Medium Dose (>240-480 mcg)/day High Dose (>480 mcg)/day Low Dose (80-160 mcg)/day Medium Dose (>240-320 mcg)/day High Dose (>320 mcg)/day NA Flunisolide MDI (AeroBid) Low Dose (500-1000 mcg)/day Medium Dose (>1000-2000 mcg)/day High Dose (>2000 mcg)/day Low Dose (500-750 mcg)/day Medium Dose (>1000-1250 mcg)/day High Dose (>1250 mcg)/day NA Fluticasone MDI (Flovent) Low Dose (88-264 mcg)/day Medium Dose (>264-440 mcg)/day High Dose (>440 mcg)/day Low Dose (88-176 mcg)/day Medium Dose (>176-352 mcg)/day High Dose (>352 mcg)/day Approved for 4 years and older NA Mometasone DPI (Asmanex) Low Dose (220 mcg)/day Medium Dose (440 mcg)/day High Dose (>440 mcg)/day Dose (110 mcg)/day Approved for 4 years and older NA Ciclesonide MDI Low Dose (160 mcg) Medium Dose (320 mcg) High Dose (640 mcg) NA NA + + Comparative ICS Potency Relative Topical Potencies 1200 1000 800 600 400 200 0 Aerobid Azmacort Belcovent Pulmicort Flovent + Summary: Comparative ICS Potency Potency is not related to efficacy Potency equates to # of puffs required Differences between inhaled steroids # of puffs required per day Bioavailability (1st pass effect) Receptor affinity and half-life + + Side Effects of ICS Effects of local deposition: dysphonia, topical candidiasis, contact hypersensitivity Systemic ADRs: Adrenal suppression Lung infection Ocular effects Skeletal effects Other Concerns + ICS: Adrenal Suppression? Mixed results Dependent on dose, duration, frequency, and timing glucocorticoid administration Effects of ICS on HPA axis appear infrequent and clinically insignificant + ICS: Lung Infection? Mixed results Some studies found small increase in risk for bacterial lung infection No increased mortality + ICS: Ocular Effects? Intraocular pressure Cataracts Limited data demonstrate no relationship between glaucoma or increased intraocular pressure and inhaled steroids Lifetime doses of >2000mg may increase prevalence of cataracts + ICS: Growth Deceleration? Childhood Asthma Management Program (CAMP) • N=1041, age 5-12, randomized to inhaled budesonide or nedocromil • Results: • Year 1: reduction of growth velocity in budesonide group • End of study: no difference in growth results CAMP Follow-Up Study N=943, age 24.9± 2.7 yrs Results: Mean adult height was 1.2 cm lower in budesonide group vs placebo compared to growth difference of 1.1 cm at time of trial + ICS: Osteoporosis? Mixed results – clinical significance is unclear No strong evidence that low-med dose inhaled steroids reduce bone mineral density May affect bone health in certain populations eg postmenopausal women, pts taking higher doses, men with COPD + ICS: Drug-Drug Interactions Ritonavir and Fluticasone propionate Ritonavir – strong CYP3A4 inhibitor increased serum concentration of fluticasone propionate increased serum concentrations and increased systemic effects Ketoconazole and Fluticasone furoate/vilanterol Ketoconazole – strong CYP3A4 inhibitor serum concentration fluticasone furoate increased serum concentrations and increased systemic effects + Long-Acting Beta Agonists (LABAs) + Stepping Up Therapy + LABAs LABAs Onset Peak Duration Binding Affinity Formoterol 2-3 mins 1-3 hours 8-12 hours +++ Salmetorol 10-20 mins 10-12 hours ++ 40-56 hours +++ 26 hours +++ 2-3 hours Indacaterol *COPD 5 mins 15 min Arformoterol 7-20 mins *COPD 1-3 + LABAs Long-Acting -Agonist Dosage Forms Strengths Cost Formoterol (Foradil) *Must be used with ICS in asthma Powder Caps 12 mcg/cap #60 caps = $264-297 Formoterol Neb (Perforomist) *COPD Neb 20 mcg/2 ml #30 vials = $368 Arformoterol Neb (Brovana) *COPD Neb 15 mcg/2 ml #30 vials = $356-415 Salmeterol (Serevent) *Must be used with ICS in asthma Diskus 50 mcg/dose DPI = $266-319 + LABAs LongActing Agonist Brands Dosing*Adults & Children 12 yeas Dosing* Children 5-11 years Dosing* Children 0-4 years Formoterol Foradil 1 cap BID 1 cap BID Safety and efficacy not established Salmeterol Serevent 1 blister BID 1 blister BID (Dose for 4-11 years) Safety and efficacy not established + LABA Controversies Differences between salmeterol and formoterol Salmeterol may attenuate response to SABAs Slight benefit of formoterol but probably clinically equivalent Safety of LABAs used alone in asthma patients + Should LABAs be used as controller medications in Asthma? Salmeterol Multi-center Asthma Research Trial (SMART) Salmeterol BID vs Placebo Interim results demonstrated no significant differences in primary endpoints Non-significant higher asthma related events in patients receiving Salmeterol Study discontinued 2002 + SMART Trial 47% of patients received inhaled steroids 50% Caucasian 38% African-American No differences in endpts in pts receiving inhaled steroids Patients without inhaled steroids experienced higher rates of asthma-related deaths compared to placebo Long acting B-agonists are NOT controller medications for asthma Long acting B-agonists are not substitutes for inhaled steroids and should NOT be used as monotherapy Inhaled steroid should not be discontinued + Black Box Warning Data from a large placebo controlled study compared Salmeterol or placebo + usual care Results showed a small but significant increase in asthma related death in patients receiving Salmeterol 13 deaths /13,174 ~ 0.098% treated versus 4 deaths/13,179 ~ 0.03% placebo for 28 wks Subgroup analysis suggest the risk may be greater in African-American patients compared to Caucasians + Fluticasone + Salmeterol Inhaled Steroid + Long acting agonist Brands Strengths Dosing Cost Fluticasone + Salmeterol Advair (DPI) Fluticasone 100 mcg Salmeterol 50 mcg Adult and Child 12 years: 1 puffs BID $288-310 Fluticasone 250 mcg Salmeterol 50 mcg Fluticasone 500 mcg Salmeterol 50 mcg Advair (HFA) Fluticasone 45 mcg Salmeterol 21 mcg $343-386 Children 4-11 years: 1 puff of (100/50) BID Adult and Child 12 years: 1 puffs BID $444-492 $272-308 Fluticasone 115 mcg Salmeterol 21 mcg $346-384 Fluticasone 230 mcg Salmeterol 21 mcg $443-501 + Budesonide + Formoterol Inhaled Steroid + Long-Acting -agonist Brands Strengths Dosing Budesonide + Formoterol Symbicort Budesonide 80 mcg Adults and + Children 12 Formoterol 4.5 mcg years: 1-2 puffs BID Children 5-11 years: 2 puffs (80/4.5) BID Budesonide 160 mcg + Fomoterol 4.5 mcg Cost $272$300 $318$335 + + Leukotriene Receptor Antagonists & Mast Cell Stabilizers Leukotriene Receptor Antagonists (LTRAs) Brand Strengths Dosing Cost Montelukast Singulair 4 mg 5 mg 10 mg Adults and Children 15 years: 10 mg daily $30170/mo Children 6-23 months: 4 mg daily Children 2-5 years: 4 mg daily Children 6-14 years: 5 mg daily Mast Cell Stabilizers Brand Strengths Dosing Cost Cromolyn Sodium NA Neb 20 mg/amp Adults and Children 12 years: 1 amp 4 times daily $60170/mo Children 5-11 years: 1 amp 4 times daily Children 2-4 years: 1 amp 4 times daily + Theophylline MOA: Phosphodiesterase inhibitor, results in increased cAMP and decreases cGMP to produce bronchodilation, also increases muscle contraction of diaphragm Drug Brand Strengths Dosing Cost Theophylline Theo-24 Hr 100 mg, 200 mg, 300 mg, 400 mg $30-$44 Theochron-ER-12 Hr 100 mg, 200 mg, 300 mg Doses should be individualized, based on peak serum concentrations, and should be based on ideal body weight. Theophylline ER-24 Hr 400 mg, 600 mg The elimination half-life is highly variable based on age, liver function, lung disease, and smoking history. Monitor Serum Peak Levels: Asthma: 5-12 mcg/ml $44-$50 $30-$60 + Theophylline Side effects: tachycardia, nausea, GI upset, hyperkalemia, hyperglycemia, SEIZURES Maintain concentration 5-12 mcg/ml The following INCREASE theophylline levels: Erythromycin, ciprofloxacin, carbamazepine, CHF, cimetidine, disulfiram, hepatic disease, isoniazid, mexiletine, thiazolidinedione + Omalizumab Pts with Serum Ig-E level of 30-700IU/ml Pts uncontrolled on High dose inhaled steroids and Long acting beta-agonist and Oral steroids (max 20mg/day) Omalizumab Placebo p-value ER visit 24% 44% 0.038 Hospitalization 6.2% 11% 0.117 +Management of Asthma in Pregnancy Albuterol preferred SABA Budesonide preferred ICS Salmeterol is preferred LABA Leukotriene receptor antagonists alternative but NOT preferred Treatment for acute exacerbations including systemic glucocorticoids – key is to monitor mother and fetus + Monitoring Symptoms (use of rescue inhaler, exacerbations, nocturnal symptoms) Side effects Inhaler technique Barriers or difficulties with therapy Review home care plan with patient/caregivers Review proper use of medications with patient/caregivers + Chronic Obstructive Pulmonary Disease (COPD) + Pharmacotherapy Bronchodilator therapy Beta-agonists Anticholinergics Methylxanthines Provides symptomatic relief No benefit in mortality Goal: Reduction of symptoms + Recommended Therapy for Stable COPD Stage I: Mild [FEV1: FVC < 70%, FEV1 80% ± symptoms] Smoking cessation Influenza vaccine + pneumococcal vaccine Short-acting bronchodilator + Recommended Therapy for Stable COPD Stage II: Moderate [FEV1: FVC < 70%, 50% < FEV1 < 80% ± symptoms] Smoking cessation Influenza vaccine + pneumococcal vaccine Short-acting bronchodilator + long-acting bronchodilator + rehabilitation + Recommended Therapy for Stable COPD Stage III: Severe [FEV1: FVC < 70%, 30% < FEV1 < 50% ± symptoms] Smoking cessation Influenza vaccine + pneumococcal vaccine Short-acting bronchodilator + long-acting bronchodilator + rehabilitation Add inhaled corticosteroids if repeat exacerbations + Recommended Therapy for Stable COPD Stage IV: Severe [FEV1: FVC<70%, FEV1<30% ± symptoms] Smoking cessation Influenza vaccine + pneumococcal vaccine Short-acting bronchodilator + long-acting bronchodilator + rehabilitation Add inhaled corticosteroids if repeat exacerbations Add long-term oxygen if chronic respiratory failure + Short-Acting Bronchodilators: Albuterol vs Ipratropium Short-acting bronchodilators Onset Peak Onset Albuterol 5 mins 15-30 mins Ipratropium 15 mins 30-60 mins + Short-Acting Anticholinergic Ipratropium Ipratropium MOA Ipratropium decreases ↓ cGMP cGMP causes contraction of airway smooth muscles, bronchoconstriction and enhances inflammation by indirectly stimulating release of mast cell contents May reduce mucus gland secretion Side effects: Dry mouth, anxiety, palpitations, nausea, blurred vision, headaches + Ipratropium Ipratropium reduces the volume of sputum without altering its viscosity Ipratropium can block Vagal mediated reflex preventing bronchoconstriction triggered by dusts, fumes and cigarette smoke + Albuterol or Ipratropium? Approximately 70% of patients who were initially unresponsive to albuterol demonstrated responsiveness after subsequent administration Albuterol and Ipratropium are equally efficacious in the treatment of acute exacerbations of COPD Neither other medication potentiates the action of the + COPD Short-Acting Bronchodilators Drug Brand Strength *Adult Dosing Cost Albuterol ProAir HFA Proventil HFA Ventolin HFA 90 mcg/puff 1-2 puffs every 4-6 hours $30-78 Levalbuterol Xopenex 45 mcg/puff 2 puffs every 4-6 hours $71-81 Ipratropium Atrovent HFA 18 mcg/puff 2-4 puff 3 to 4 times daily $281-342 Albuterol + Ipratropium Combivent Respimat Ipratropium bromide 20 mcg/albuterol base 100 mcg 1 puffs every 6 hours $320-375 + Combivent Respimat Drug Brand Strength Ipratropium/ Albuterol Combivent 18 mcg/103 Respimat mcg *Adult Dosing Cost 1 puff every 4 hours $320$375 +Long-Acting Anticholinergic Tiotropium Drug Brand Strength *Adult Dosing Tiotropium DPI Spiriva 18 mcg/puff 1 cap inhaled daily Cost $340$385 + Long-Acting Anticholinergic Aclindinium bromide Drug Brand Strength *Adult Dosing Aclindinium bromide Tudorza Pressair 400mcg/pu 1 puff BID ff Cost $315-346 + Long-Acting Beta-Agonists Salmeterol and Formoterol Long-Acting - Brand agonist Strengths * Adult Dosing Cost Formoterol Foradil 12 mcg/cap 1 cap BID #60 caps = $264-297 Salmeterol Serevent 50 mcg/dose 1 puff BID #1 inh =$266-319 + Long-Acting Beta-Agonist Indacterol and Olodaterol Long-Acting agonist Brand Strengths * Adult Dosing Cost Indacaterol Arcapta Neohaler *COPD Powder Caps 75mcg/dose 1 cap inhaled daily #30 caps = $220-240 Striverdi Respimat *COPD 2.5 mcg/actuatio n 2 oral inhalations (5 mcg) once daily at same time every day #1 inhaler per month FDA Approval Date: July 1, 2011 Olodaterol FDA Approval Date: August 1, 2014 $$$ (?) + LABA + ICS Combination Inhaler Long-Acting - Brand agonist + ICS Strengths Fluticasone + salmeterol Advair Diskus 250mcg/salm 1 inhalation eterol 50 mcg twice daily $343-384 Fluticasone furoate + vilanterol Breo Ellipta 100mcg/25m cg per inhalation $302-328 FDA Approval Date: 2013 Adult Dosing 1 inhalation once daily Cost + Tiotropium vs Salmeterol Included persons with COPD and FEV1 39% of predicted Randomized to tiotropium daily or salmeterol BID x6 mos Brausasco. Thorax 2003;58:399–404 + Tiotropium vs Salmeterol 2 1.5 Tiotropium 1 Salmeterol Placebo 0.5 0 Hosp LOS Brausasco. Thorax 2003;58:399–404 Office visits All Hosp + Tiotropium vs Salmeterol (POET-COPD) 7376 patients with moderate-to-severe COPD 1 year randomized, double-blind, parallel-group trial Tiotropium 18mcg/day vs. Salmeterol 50mcg BID Tiotropium increased the time to first exacerbation compared with Salmeterol • 187 days vs. 145 days; HR 0.83 (95% CI 0.77 to 0.90; P< 0.001) Tiotropium also reduced the annual number of moderate or severe COPD exacerbations compared to Salmeterol 0.64 vs. 0.72; RR 0.89 (95% CI 0.83 to 0.96; P = 0.002); NNT=25 Vogelmeier V, Hederer B, Glaab T, et al. NEJM 2011; 364:1093. + Salmeterol/Fluticasone vs Tiotropium (INSPIRE) 1323 patients with severe COPD • High-dose Salmeterol/Fluticasone (Advair) 50/500mcg vs. Tiotropium (Spiriva) 18mcg/day Exacerbation rate did not differ between treatment groups (P=0.656) In exacerbations… • Salmeterol/Fluticasone patients needed an antibiotic • Tiotropium patients needed an oral corticosteroid Mortality was lower in the Salmeterol/Fluticasone group than in the Tiotropium group (3% vs 6%, p=0.032) Pneumonia was more frequent in the Salmeterol/Fluticasone group (HR 1.94, 95% CI 1.19 to 3.17; p=0.008) Wedzicha JA, Calverley PMA, Seemungal TA, et al. Am J RespirCrit Care Med 2008; 177:19-26. + Towards A Revolution in COPD Health (TORCH) 6112 patients, mostly severe COPD, randomized to treatment for 3 years • - Salmeterol 50mcg BID • - Fluticasone 500mcg BID • - Salmeterol + Fluticasone combination • - Placebo There was no significant mortality difference between combination therapy and Salmeterol Patients treated with combination therapy were less likely to die than those treated with Fluticasone alone (HR 0.774, 95% CI 0.641 to 0.934; P=0.007) Fewer exacerbations in those receiving Salmeterol + Fluticasone compared to either agent alone or placebo; NNT = 4 (Combination vs. Placebo) However, any group that received treatment with an ICS had increased reports of pneumonia – 19.6% combination therapy , 18.3% fluticasone group vs. placebo 12.3% (p<0.001) Calverley et al. NEJM 2007;356:75-89. + Evidence to Support Triple Inhaler Therapy • In patients with severe COPD, triple therapy with a LABA, ICS, and LAAC is often used • UPLIFT TRIAL • • • • • 6000 patients 2/3 LABA + ICS + LAAC (Tiotropium) 1/3 LABA + ICS Addition of Tiotropium to LABA + ICS significantly improved airflow, reduced exacerbations, and improved health related quality of life Several retrospective cohorts have also found that the combination of LABA + ICS + Tiotropium is associated with ↓ mortality, ↓ exacerbations, and ↓ hospitalizations + Theophylline MOA: directly relax bronchial and pulmonary blood vessel smooth muscle, central respiratory stimulant, and more Therapeutic levels: 8-12 mcg/ml Side effects: Common: Nausea, vomiting, insomnia, restlessness, anxiety, anorexia, palpitations Serious: Seizures, arrhythmias Place in therapy? + Theophylline Drug-Drug Interactions Increase Metabolism Decrease Metabolism Cigarette smoking High protein diet Hyperthyroidism Marijuana smoking Carbamazepine Barbiturates Rifampin Phenytoin Age >60 years Severe hypoxemia (arterial Po2 <45 mmHg) CHF Viral infections Allopurinol Cimetidine Erythromycin Quinolone Verapamil + Acute COPD Exacerbations: Cortiscosteroids Leuppi et al (2013) Treatment for 5 vs 14 days prednisone 40mg daily N=314 pts No sig diff in primary outcome treatment relapse No sig diff in lung function or in any subjective outcomes + Acute Exacerbations: Antibiotics Coverage: Haemophilus, Streptococcus, and Moraxella Indicated for treating infectious exacerbations of COPD and other bacterial infections Tx options: trimethoprim-sulfamethoxazole Doxycycline beta-lactamase stable PCNs 2nd or 3rd gene cephalosporins extended spectrum macrolides antipneumococcal FQs + Azithromycin Daily? 8 studies have evaluated whether macrolide antibiotics DECREASE the risk of acute exacerbations of COPD Mixed results Albert et al (2011) Azithromcyin 250mg po qday vs placebo for one year No significant difference though fewer hospitalizations for any cause, fewer hospitalizations related to COPD, fewer emergency dept or urgent care visits + Vitamin D in COPD? No definitive evidence demonstrating benefit in patients with pulmonary disease Slight improvements may be observed in patients who are already vitamin D deficient – supplementation gets them back to normal levels + Summary of Step-Wise Therapy Bronchodilator Therapy Beta-agonist (short-acting) or Ipratropium Ipratropium + Beta agonist (Combined) Tiotropium Inhaled steroid (may reduce exacerbations, but increase RISK of pneumonia) Consider addition of Theophylline + ALLERGIC RHINITIS + Allergic Response Allergic response: IgE Production IgE of IgE antibodies bound mast cells interacts with allergen Release of inflammatory mediators Response Immediate: Histamines, leukotrienes, prostaglandin, bradykininis Late: eosinophils, monocytes, macrophage, basophil, lymphocyte + Allergies Immunologic IgE mediated reaction Degranulation of mast cells and immediate release of histamine, leukotriene, prostaglandin, and kinins Vasodilation, Increased vascular permeability Rhinorrhea, Sneezing, Itchy eyes + Rhinitis Infectious Viral Bacterial Non-Infectious Allergy (immune mediated) Non-allergic (vasomotor) + Non-Pharmacologic Treatment Allergen avoidance Exposure HEPA reduction vacuums (poor evidence) Encase bedding (poor evidence) Dehumidifier evidence) supposed to limit mold (poor + Pharmacologic Treatment Antihistamines: oral Inhaled or nasal or ophthalmic steroids Antihistamines + inhaled steroids Other: Mast cell stabilizers Leukotriene modifiers Ipratropium (anti-cholinergic) Decongestants + Antihistamines + Antihistamines: H1 Receptor Blockers MOA: blocks H1 receptors, no effect on leukotrienes, prostaglandins, bradykinins Reduces nasal itching, sneezing, rhinorrhea (NOT as effective at reducing nasal congestion) Limited When effectiveness should patients administer? + Antihistamines Class 1st Generation 2nd Generation Alkylamines Brompheniramine Chlorpheniramine Pheniramine Triprolidine Acrivastine Ethanolamines Clemastine (Tavist) Diphenhydramine (Benadryl) Doxylamine Piperazines Hydroxyzine (Vistaril) Meclizine (Bonine, Antivert) Cetirizine (Zyrtec) Levocetirizine (Xyzal) Piperidine Azatadine Cyproheptadine Astemizole Loratadine (Claritin) Desloratadine (Clarinex) Phenothiazines Promethazine Fexofenadine (Allegra) Olopatadine Terfenadine Other Doxepin Azelastine Emedastine + Antihistamines Active metabolite of Hydroxyzine Cetirizine (Zyrtec) Levocetirizine (Xyzal)* Active metabolite of Terfenadine Fexofenadine (Allegra)* Loratadine (Claritin) Desloratadine (Clarinex)* + How long do Antihistamines take to work? 1st Generation Onset of effect: 15-60 minutes Duration of effect: 4-8 hours Half-life: 3-8 hours 2nd Generation Onset of effect: 1-3 hours Duration of effect: 12-24 hours Half-life: 12-15 hours + 1st Generation Antihistamines Crosses blood brain barrier, lipophilic Anti-cholinergic Anti-serotonergic Anti-alpha-adrenergic Sedative effects minimized if initiated at bedtime + Adverse Effects Anti-cholinergic (muscarinic) Dry mouth, urinary retention, constipation, tachycardia Anti-serotonergic Increased appetite Anti-alpha-adrenergic Hypotension, dizziness, tachycardia Cardiac-ion channels Prolong QT interval + Considerations in Kids & Elderly Kids Impaired school performance Paradoxical agitation Elderly more susceptible to anti-cholinergic effects Dyskinesia Urinary hesitancy Confusion + 2nd Generation Antihistamines MOA: bind more specifically to peripheral H- receptors Do NOT cross blood-brain barrier, less lipophilic This means LESS sedation, dizziness, fatigue, insomnia, irritability, nervousness, urinary retention + 2nd Generation: Comparisons Sedation: Cetirizine, Levocetirizine Onset of action: Levocetirizine < Cetirizine, fexofenadine < Loratadine Lack of evidence of superiority between 2nd generation antihistamines No evidence one antihistamine will be effective after failing a previous antihistamine + Comparative Efficacy 2nd generation are LESS effective in relieving nasal congestion compared to 1st generation antihistamines Both 1st and 2nd generation antihistamines are LESS effective vs intranasal steroids + 2nd Generation Antihistamines: Sedation-Free? Cetirizine Fexofenadine Loratadine Dizziness 2% - - Drowsiness 13.7% 1.3% 8% Fatigue 5.9% 1.3% 4% + 2nd Generation Antihistamines: Safety Concerns Prolongation of QTc interval Astemizole and Terfendadine removed from market No reports with current 2nd generation anti-histamines + Pregnancy and Lactation Category B Chlorpheniramine, Diphenhydramine Cetirizine, Loratadine Inhaled steroids Category C Hydroxyzine, Ketotifen Azelastine, Desloratadine, Fexofenadine, Olopatadine + Antihistamines: OTC vs Rx Over the counter (OTC) 1st generation 2nd generation Loratadine (Claritin) Cetirizine (Zyrtec) Fexofenadine (Allegra) Prescription (Rx) Levocetirizine (Xyzal) Desloratadine (Clarinex) + Current Antihistamines Drug *Adult Dosing *Child Dosing Generic OTC or Rx Chlorpheniramine (Chlor-Trimeton) 4 mg every 4-6 hours or 2-6 years: 1 mg every 4-6 SR 8-12 mg every 8-12 hours NTE 6 mg in 24 hours hours ; NTE 24 mg/day Yes OTC $12.99 Clemastine fumurate (Tavist) 1.34 mg every 8 hours 6-12 years: 0.67 mg every 12 hours Yes OTC $18.00 Diphenhyramine HCl (Benadryl) 25-50 mg every 8 hours 5 mg/kg per day divided every 8 hours Yes OTC $4.00 Loratadine (Claritin) 10 mg daily 2-5 years: 5 mg once daily Yes OTC $21.99 Cetirizine (Zyrtec) 5-10 mg daily 6-12 mo: 2.5 mg daily 12 mo - < 2 years: 2.5 mg every 12 hours Yes OTC $29.99 Levocetirizine (Xyzal) 2.5-5 mg daily 6 mo-5 years: 1.25 mg daily 6-11 years: 2.5 mg daily No Rx $99.00 Desloratadine (Clarinex) 5 mg daily 6-11 mo: 1 mg daily 12 mo-5 years: 1.25 mg daily 6-11 years: 2.5 mg daily No Rx $147.00 Fexofenadine (Allegra) 60 mg every 12 hours or 180 mg daily 6 mo-< 2 years: 15 mg every 12 hours 2-11 years: 30 mg twice daily Yes OTC $15.00 + Antihistamines: Intranasal Drug *Adult Dosing *Child Dosing Azelastine (Astelin) (AH) 1 to 2 sprays in each nostril BID Ages 5 to 11 Yes years: 1 spray in each nostril BID $77-156 Not approved for ages less than 12 years $198-273 Olopatadine 2 sprays in (Patanase) each nostril (AH) BID Generic No Cost + Antihistamines: Ophthalmic Useful for allergic conjunctivitis Azelastine (Optivar) Emedastine (Emadine) Levocabastine (Livostin) Olopatadine (Patanol) Epinastine (Elestat) Ketotifen (Zaditor) (Zyrtec) OTC - antihistamine / mast cell stabilizer Study suggesting more effective compared to olopatadine Naphazoline/pheniramine (Naphcon-A, Opcon-A, Visine-A) OTC - can cause rebound symptoms – AVOID use >3 days + Nasal Corticosteroids + Nasal Corticosteroids Blocks inflammatory response Reduces symptoms of Nasal congestion Rhinorrhea Sneezing, Nasal itching Conjunctivitis Generally MORE effective than antihistamines, decongestants, leukotriene antagonist and mast cell stabilizers + Nasal Corticosteroids Drug *Adult Dosing *Child Dosing Generic Cost Beclomethasone (Beconase AQ) (S) 1 to 2 sprays in each nostril BID Ages 6 to 12 years: 1 to 2 sprays in each nostril BID No $149.99 Budesonide (Rhinocort Aqua) (S) 1 to 4 sprays in each nostril daily Ages 6 to 11 years: 1 to 2 sprays in each nostril daily No $111.96 Ciclesonide (Omnaris) (S) 2 sprays in each nostril daily Ages 6 to 11 (seasonal allergic rhinitis indication only): 2 sprays in each nostril daily No $105.99 Flunisolide (Nasarel) (S) 2 sprays in each nostril BID to TID (max 8 sprays in each nostril per day) Ages 6 to 14 years: 2 sprays in each nostril BID or 1 spray in each nostril TID (max 4 sprays in each nostril per day) Yes $45.99 Fluticasone furoate (Veramyst) (S) 1 to 2 sprays in each nostril daily Ages 2 to 11 years: 1 to 2 sprays in each nostril daily No $105.61 Fluticasone propionate (Flonase) (S) 1 to 2 sprays in each nostril daily Ages 4 to 17 years: 1 to 2 sprays in each nostril daily Yes $55.99 (generic) $85.98 (brand) Mometasone (Nasonex) (S) 2 sprays in each nostril daily Ages 2 to 11 years: 1 spray in each nostril daily No $116.82 Triamcinolone (Nasacort AQ) (S) 1 to 2 sprays in each nostril daily Ages 6 to 11 years: 1 to 2 sprays in each nostril daily No $113.08 + Evidence for Intranasal Corticosteroids vs Antihistamines Percent % Rinne. J All Clin Imm 2002;109(3):426 + Combination Therapy: Antihistamines + Inhaled Steroids Limited studies Little to minimal benefit Unfortunately minimal benefit at twice the cost + Decongestants + Decongestants Short-term benefit Efficacy: topical Oral > oral decongestants; longer duration, increased systemic side effects + Decongestants Side Effects Topical Rebound congestion (rhinitis medicamentosa) Do NOT use > 3-5 days Systemic HTN, urinary retention, mydriasis, tachycardia, restlessness, agitation, nervousness + Decongestants Phenylpropanolamine, Ephedrine were removed due to observational association with stroke Ephedrine (Ephedra, Ma Huang) Associated with stroke Avoid chronic use Pseudoephedrine, Phenylephrine Available Avoid chronic use + Efficacy: Pseudoephedrine vs Phenylephrine “A placebo-controlled study of the nasal decongestant effect of phenylephrine and pseudoephedrine in the Vienna Challenge Chamber” Authors conclude that during 6 hr observation period, single dose of PSE but not PE resulted in significant improvement in measures of nasal congestion + Drug-Drug Interactions MAO-Inhibitors Ergotamines (vasoconstrictors) SSRIs Diet pills, St. John’s Wort, Methamphetamines Linezolid + Decongestants: Precautions • Precautions • Uncontrolled Hypertension • History of cardiovascular disease • History of stroke • Glaucoma • Arrhythmia • Hyperthyroidism • Prostatic hypertrophy • Renal insufficiency + Management of Allergic Rhinitis in Pregnancy Intranasal corticosteroids most effective and when used at prescribed doses low risk Montelukast okay but minimal data Antihistamines Avoid loratadine and cetirizine okay oral decongestants; use nasal dilator, shortterm topical oxymetazoline + Summary Inhaled steroids are more efficacious compared to: Oral antihistamines (1st and 2nd generation) Inhaled antihistamines Montelukast Montelukast + oral antihistamines Cromolyn sodium Ipratropium Inhaled steroids are similar in efficacy compared to oral antihistamine + pseudoephedrine Antihistamine ophthalmic agents Combination Inhaled steroids + ophthalmic antihistamine is slightly more effective than Inhaled steroids + oral antihistamine EXPENSIVE + Step Wise Therapy • Oral 1st generation Antihistamine • Inhaled Steroid (1st line therapy) OR 2nd generation antihistamines (not as effective as inhaled steroids) • Inhaled nasal steroids + oral antihistamines (minimal benefit with increased cost) • Montelukast (not as effective as inhaled steroids) • Oral Prednisone • Immunotherapy + References Kelly W, Sorkness CA. 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