Pharmacotherapy of COPD
List the treatment goals for reducing symptoms of COPD:
- Relieve symptoms
- Improve health status
- Improve exercise tolerance
List the treatment goals for reducing risk of COPD:
- Prevent disease progression
- Prevent and treat exacerbations
- Reduce mortality
How may dyspnea present in a person w/ COPD?
- Progressive
- Worse w/ exercise
- Persistent
How may chronic cough present in a person w/ COPD?
- Intermittent (initially)
- May or may not be productive
On physical exam, what may be observed in a pt with COPD?
- Barrel chest
- Use of accessory respiratory muscles
- Increased RR
- Shallow breathing
- Pursed lips during expiration
T/F: Smoking cessation is the interventions with the least capacity to influence the natural history of COPD
False
How do you determine pack year history?
# packs/day x # of years
First line agents for smoking cessation
- Nicotine replacement therapy
- Bupropion (Zyban)
- Varenicline (Chantix)
T/F: All smokers should be offered smoking cessation counseling at every visit.
True
List the 5 As for smoking cessation strategy:
- Ask
- Advise
- Assess
- Assist
- Arrange
T/F: No medications alter LT decline of COPD or reduce mortality
True
Therapeutic agents for stable COPD
- β2 agonists (short and long acting)
- Anticholinergics (short and long acting)
- Methylxanthines
- Inhaled corticosteroids
- PDEi
- Combo therapy
First line for category C:
LAMA
First line for category A
prn SAMA or SABA
First line for category D:
- LAMA
- LAMA+LABA
- ICS + LABA
First line for category B:
LABA or LAMA
List the 3 components of the COPD management cycle
- Review
- Assess
- Adjust
In the COPD management cycle, what are we reviewing?
- Symptoms
- Exacerbations
In the COPD management cycle, what are we assessing?
- Inhaler technique and adherence
- Non-pharm approaches (including pulmonary rehab and self-management education)
In the COPD management cycle, what are we adjusting?
- Escalate
- Switch inhaler device/molecules
- De-escalate
Meds that increase FEV1 by altering airway smooth muscle:
Bronchodilators
T/F: Bronchodilators do all of the following:
- Improves lung elastic recoil
- Helps empty lungs of air
- Decreases hyperinflation and rest and during exercise
- Improves exercise tolerance
False
SABAs last how long?
4-6 hrs
LABAs last how long?
12-24 hrs
T/F: The use of routine SABAs with LABAs should be avoided
True
AEs of β2 agonists:
- Sinus tachycardia
- Nervousness
- Tremor
- Hypokalemia
- Increased O2 demand at rest
- Tachyphylaxis
T/F: LABAs have been shown to:
- Improve FEV1, lung vol, and QoL
- ↓ SOB and exacerbations
- No impact on LT lung decline or mortality
True
Examples of SABAs:
- Albuterol
- Levalbuterol
- Pirbuterol
Examples of LABAs:
- Salmeterol
- Formoterol
- Arformoterol
- Olodaterol
- Indacterol
Which LABAs are dosed BID?
- Salmeterol
- Formoterol
- Arformoterol
Which LABAs are dosed daily?
- Olodaterol
- Indacterol
Which LABA(s):
- Significantly improve FEV1 and lung volumes, dyspnea, health related QoL, and exacerbation rate
- No effect on rate of decline of lung function or mortality
- Salmeterol
- Formoterol
Which LABA(s):
- Bronchodilator effect is significantly > Salmeterol and Formoterol
- Significant effects on breathlessness, health status, and exacerbation
- Cough noted following inhalation
Indacterol
______________ inhalers block muscarinic receptors in bronchial smooth muscle causing bronchodilation
Anticholinergic
SAMAs last how long
8 hrs
LAMAs act how long:
12-24 hrs
Most studied anticholinergic:
Tiotropium
AEs of anticholinergics
- Dry mouth
- Bitter metallic taste
- blurry vision
Ipratropium is a _______ (SAMA/LAMA)
SAMA
Ipratropium dosing
2 puffs q6-8 hrs
LAMAs w/ q day dosing:
- Tiotropium (spiriva)
- Umeclindinium (Incruse Ellipta)
LAMAs w/ BID dosing:
- Aclidiunium (Tudorza Pressair) (q12hrs)
- Glycopyrrolate (Seebri Neohaler)
Which medication is less effective and less well tolerated than LABAs that must be routinely measured and within therapeutic range?
Methylxanthines (Theophylline)
AEs of Theophylline:
- Tremor
- Arrhythmias
- Seizures
- HA
- Insomnia
- Nausea
- GERD
Pt education for theophylline:
Take w/ food, blood tests, AE potential, smoking
Examples of combo bronchodilators:
- Ipratropium/albuterol (SAMA + SABA)
- Umeclidinium + vilanterol (LAMA+LABA)
- Tiotropium + ololdaterol (LAMA+LABA)
- Glycopyrrolate + indacaterol (LAMA+LABA)
T/F: Role of corticosteroids is controversial bc efficacy varies pt to pt, and withdrawal from the treatment could lead to exacerbation
True
AEs of corticosteroids:
- Oral candidiasis (Thrush)
- Hoarseness
- Increased risk of pneumonia
- May be associated w/ osteoporosis
Pt education for corticosteroids:
- Inhaler technique
- Rinse mouth after using
Examples of inhaled corticosteroids:
- Beclomethasone
- Budesonide
- Ciclesonide
- Flunisolide
- Fluticasone
- Trimacinolone
- Mometasone
T/F: ICS+LABA combo therapy is more effective than either individual component
True
Elderly pts may have difficulty with:
- Spacers
- Dry powder inhalers
- Nebulized formulations
Example of PDEi
Roflumilast (Daliresp)
T/F: Roflumilast may or may not be used in conjunction w/ a bronchodilator
False
Roflumilast is dosed ______ (BID/Daily)
Daily
AEs of Roflumilast
- N/D
- Weight loss
- Depression
- Insomnia
- Mood disturbances
Roflumilast should be avoided in pts w/ significant ________ dysfxn
Liver
T/F: Roflumilast does not treat bronchospasm
True
Roflumilast is indicated for pts in which grade(s) (ABCD) as an alternative choice?
C, D
Roflumilast reduces exacerbations in pts treated w/ corticosteroids by _______%
15-20%
T/F: Regular use of antibiotics may reduce exacerbation risk
True
T/F: Moxifloxacin was shown to reduce exacerbations in pts prone to exacerbations in a study that dosed it at 250 mg/day or 500 mg 3x/wk for 1 year
False
Which vaccine can decrease infections, hospitalizations and mortality in COPD pts?
Influenza
Which vaccine is indicated for all pts 65 and older or w/ significant CV dz that reduces CAP for pts w/ an FEV1 <40%?
Pneumococcal
T/F: Mucolytics (Carbocysteine and N-acetylcysteine) may reduce exacerbations in pts not receiving ICS
True
T/F: The regular use of cough suppressants is recommended in COPD pts because coughs do not serve a protective fxn and should be kept to a minimum
False
Non-pharm trtmt:
- Smoking cessation
- Pulmonary rehab
- Exercise training must continue at home for sustained effect
T/F: LT admin of O2 (>15 hr/d) in pts w/ chronic respiratory failure increases survival
True
Most common risk factor for acute exacerbations:
Viral (or maybe bacterial) respiratory tract infections
Prevention of exacerbation:
- Smoking cessation
- Influenza and pneumonococcal vaccine
- Med education (compliance and technique)
- Maximize maintenance therapy
- Consider pulmonary rehab
- Home FU post hospital discharge
T/F: Acute exacerbations are based entirely on the clinical presentations of the pt (i.e. cough, dyspnea, sputum production) and there are no labs or biomarkers to confirm diagnosis
True
Most common bacteria in severe COPD
P. aeruginosa
Signs of severity of exacerbations:
- Accessory muscle use
- Paradoxical chest wall mvmt
- ↓ alertness
- Peripheral edema
- Hemodynamic stability
- Signs of R sided HF
- Worsened cyanosis
Factors favoring hospitalization for Trtmt of COPD exacerbation:
- Presence of high risk comorbidity
- Suboptimal response to outpt mngmt
- Worsening of dyspnea
- Inability to eat/sleep during symptoms
- Mental status changes
- Lack of home support for care
- Uncertain diagnosis
Mild exacerbation should be treated w:
SABD
Moderate exacerbation should be treated w:
SABD+ABX and/or oral corticosteroid
Severe exacerbation should be treated w:
SABD+ABX and/or oral corticosteroid + O2 (Requires hospitalization or visits ED)