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Application to add a Long Acting Muscarinic Agent (LAMA) inhaler
to the Essential Medicines List
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1. Summary statement of the proposal for inclusion
The successful control of COPD requires reliever and maintenance medicines,
including bronchodilators that relax airway smooth muscle. Currently the WHO List
of Essential Medicines for COPD contains two bronchodilators, salbutamol and
ipratropium, both being short-acting in nature.
Bronchodilators (BD) are central to COPD treatment (GOLD 2019). They reduce
symptoms, and risk and severity of exacerbations while also improving overall
health status and exercise tolerance.
Two classes of BD are available; beta agonists and anti-muscarinics. Both are
available in short and long acting formulations (Long acting beta agonists, LABA;
long acting anti-muscarinics, LAMA) (Barnes 1995).
Antimuscarinic drugs block the bronchoconstrictor effects of acetylcholine on M3
muscarinic receptors expressed in airway smooth muscle (Melani 2015). Long-
acting antimuscarinic antagonists (LAMAs), such as tiotropium, aclidinium,
glycopyrronium bromide and umeclidinium have prolonged binding to M3
muscarinic receptors, with faster dissociation from M2 muscarinic receptors, thus
prolonging the duration of bronchodilator effect.
There are data showing benefits of long over short acting formulations (eg
tiotropium vs ipratropium) (van Noord, Bantje et al. 2000, Cheyne, Irvin-Sellers et
al. 2013, Cheyne, Irvin-Sellers et al. 2015).
The benefits of LAMA medication on COPD have been shown with aclinidium
(Jones, Singh et al. 2012) and Tiotropium (Karner, Chong et al. 2012, Karner,
Chong et al. 2014). Large studies have shown improvement in lung function,
quality of life, exercise performance and reduced exacerbations with the use of
Tiotropium (Disse, Speck et al. 1999, Casaburi, Kukafka et al. 2005, Kesten,
Casaburi et al. 2008, Karner, Chong et al. 2012, Karner, Chong et al. 2014, Zhou,
Zhong et al. 2017).
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There is also evidence on the effectiveness of anti-muscarinics when compared
with LABA agents (Appleton, Jones et al. 2006, Decramer, Chapman et al. 2013)
(Vogelmeier, Hederer et al. 2011, Karner and Cates 2012).
As briefly discussed here, LAMA medications with prolonged bronchodilator effect
are relevant and efficacious for the treatment of symptoms in moderate to severe
COPD patients. It is thus proposed to add this formulation to the EML.
2. Name of the WHO technical department supporting the application
Department of Non Communicable Diseases.
3. Name of the organisation(s) consulted and/or supporting the application
Forum of International Society (FIRS)
Contributors
Maria Victorina Lopez Varela
Universidad de la Republica. Montevideo, Uruguay
Kwun M Fong
University of Queensland Thoracic Research Centre at The Prince Charles Hospital
Dean Schraufnagel
Executive Director, FIRS
Asian-Pacific Society of Respirology (APSR)
Contributors
Kwun M Fong (President APSR)
University of Queensland Thoracic Research Centre at The Prince Charles Hospital
Thoracic Medicine, The Prince Charles Hospital
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Ian A Yang (APSR member)
Head, UQ Northside Clinical Unit and Professor, Faculty of Medicine, The University
of Queensland
Thoracic Program Medical Director, The Prince Charles Hospital
University of Queensland Thoracic Research Centre at The Prince Charles Hospital
Supported by Global Initiative for Chronic Obstructive Lung Disease (GOLD)
Contributors
Maria Victorina Lopez Varela (BoD GOLD)
Universidad de la Republica. Montevideo, Uruguay
Alvar Agusti (Chair GOLD)
Respiratory Institute, Hospital Clinic, IDIBAPS Univ. Barcelona and Ciberes Barcelona, Spain
Claus Vogelmeir (Chair Science Committee GOLD)
University of Marburg, Germany
Dave Singh (Science Committee GOLD)
University of Manchester, UK
Rogelio Perez Padilla (ALAT)
INER, Ciudad de Mexico, Mexico
Alejandra Rey (ALAT)
Montevideo, Uruguay
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4. International Nonproprietary Name (INN) and Anatomical Therapeutic Chemical
(ATC) code of the medicine
DIN (Drug Identification Number)
02246793 SPIRIVA 18µG Capsule
DIN (Drug Identification Number)
02435381 Spiriva Respimat 2.5 µg Oral inhalation
DIN (Drug Identification Number)
02394936 Seebri 50 µg Capsule for inhalation
DIN (Drug Identification Number)
02423596 Incruse Ellipta 62.5 mg/blister
5. Formulations and strengths proposed for inclusion; including adult and
paediatric
Tiotropium
Spiriva HandiHaler, Spiriva Respimat (Boehringer Ingelheim)
Adults
capsule (Spiriva Handihaler; powder for oral inhalation)
• 18mcg
solution for inhalation (Spiriva Respimat)
• 1.25mcg/actuation
• 2.5mcg/actuation
Chronic Obstructive Pulmonary Disease
Maintenance treatment of bronchospasm associated with chronic obstructive
pulmonary disease (COPD); reduction of COPD exacerbations
Spiriva Handihaler: 2 PO inhalations of 1 capsule (18 mcg) qDay via HandiHaler
inhalation device
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Spiriva Respimat: 5 mcg (2 actuations; 2.5 mcg/actuation) inhaled PO qDay
Glycopyrronium
Seebri Breezhaler (Novartis)
Adults
Capsule 50 µg of glycopyrronium
Chronic Obstructive Pulmonary Disease
Available as a maintenance bronchodilator treatment to relieve symptoms in adult
patients with COPD. Once-daily Seebri Breezhaler is approved for use in over 90
countries, including countries within the EU and Latin America, Japan, Canada,
Switzerland and Australia.
Umeclidinium bromide
Incruse Ellipta (Glaxosmithkline)
Adults
Powder for inhalation
• 62.5mcg/actuation
Chronic Obstructive Pulmonary Disease
Indicated for the long-term, once-daily, maintenance treatment of airflow obstruction
in patients with chronic obstructive pulmonary disease (COPD), including chronic
bronchitis and/or emphysema
62.5 mcg (1 actuation) inhaled PO q Day
Availability of pharmacopoeial standards
The Pharmacopeia status of the LAMA drugs were verified from the European
Pharmacopoeia: https://www.edqm.eu/en/knowledge-database and the entries for
tiotropium and glycopyrronium are reproduced here:
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6. Whether listing is requested as an individual medicine or as a representative
of a pharmacological class
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The present application requests the inclusion of the LAMA inhaler as representative
of a pharmacological class i.e. LAMA.
7. Treatment details (requirements for diagnosis, treatment and monitoring)
Global Initiative for Chronic Obstructive Lung Disease (GOLD) Document
GOLD document (1) proposes the assessment of COPD based on the patient’s
level of symptoms, future risk of exacerbations, the extent of airflow limitation, the
spirometric abnormality, and the identification of comorbidities. The “ABCD”
assessment tool approaches pharmacologic management according to symptom
burden and exacerbation risk. LAMA medication is included in patients in groups B,
C and D alone or associated with other drugs. Only less symptomatic and non
exacerbating group A patients can be treated with “any BD”.
8. Information supporting the public health relevance
Chronic obstructive pulmonary disease (COPD) is currently the third leading cause
of death in the world and affects about 10% of the adult global population
The COPD burden will undoubtedly increase in the coming decades because of
continued exposure to risk factors tobacco, outdoor and indoor pollution an aging
population and increased childhood survival.
It is well known that there are wide disparities between countries in access to
healthcare however, access to spirometry and basic COPD medications show much
greater inequalities.
There is a need to raise awareness of COPD to emphasize the importance of
accurate diagnosis and ensure drugs with proven efficacy and safety are available
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9. Review of benefits: summary of comparative effectiveness in a variety of
clinical settings
We searched systematic reviews, technology assessment reports, and meta-
analyses of controlled clinical trials involving LAMAs in the Database of Abstracts
of Reviews of Effectiveness.
We identified the following studies in DARE:
2014 DARE Cochrane Database of Systematic Reviews: Reviews
Aclidinium bromide for stable chronic obstructive pulmonary disease
[Abstract of a Cochrane Review]
2014 HTA Canadian Agency for Drugs and Technologies in Health (CADTH)
Aclidinium bromide (Tudorza Genuair - Almirall Canada Ltd.) indication: chronic obstructive pulmonary disease
Authors' conclusions: The Canadian Drug Expert Committee (CDEC) recommends that aclidinium bromide be listed for the treatment of chronic obstructive pulmonary disease (COPD) if the following conditions are met: • List in a manner similar to other long-acting antimuscarinic antagonists (LAMAs). • Drug plan costs for aclidinium bromide should not exceed the cost of any other LAMA.
2014 NHS EED
Respiratory Medicine
Cost-effectiveness of the LABA/LAMA dual bronchodilator indacaterol/glycopyrronium in a Swedish healthcare setting
Economic evaluation
2014 DARE Cochrane Database of Systematic Reviews: Reviews
Long-acting beta2-agonists and long-acting muscarinic antagonists in a combined inhaler versus either agent alone or placebo for chronic obstructive pulmonary disease
[Abstract of a Cochrane Review]
2014 DARE Cochrane Database of Systematic Reviews: Reviews
Long-acting inhaled therapy (beta-agonists, anticholinergics and steroids) for COPD: a network meta-analysis
[Abstract of a Cochrane Review]
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Additional searches for relevant reviews were undertaken in PubMed which
identified relevant papers.
Furthermore, the Cochrane Database of Systematic Reviews was also
interrogated for additional evidence, which are summarized here:
• Oba et al (Oba, Keeney et al. 2018)
For this 2018 Cochrane review, Oba collected and analysed data from 99 studies,
including a total of 101,311 participants with advanced COPD, using a special
method called network meta-analysis, which enabled us to simultaneously compare
the four inhaler groups and 28 individual inhalers (4 LABAs, 5 LAMAs, 9 LABA/ICS
combinations, and 10 LABA/LAMA combinations). They found that LABA/LAMA
combination was the best treatment, followed by LAMA, in preventing flare-ups
although there was some uncertainty in the results. Combination inhalers
(LABA/LAMA and LABA/ICS), are more effective for controlling symptoms than
single-agent therapies (LAMA and LABA), in general. The LABA/LAMA combination
was better than LABA/ICS combination, especially in people with a prior episode of
flare-ups. The LABA/ICS combination had a higher incidence of severe pneumonia
compared to the others. They did not find a difference in benefits and harms,
including side effects, among individual inhalers within the same treatment groups.
Conclusions drawn were that the LABA/LAMA combination is likely the best
treatment in preventing COPD flare-ups. LAMA-containing inhalers appear to have
an advantage over those without LAMA for preventing flare-ups. Combination
inhalers (LABA/LAMA and LABA/ICS), appear more effective for controlling
symptoms than single-agent therapies (LAMA and LABA). Inhaled steroids carry an
increased risk of pneumonia.
Representative LABA examples from Oba et al
Figure 6.1 LAMA vs LABA for moderate to severe exacerbations, favouring LAMAs.
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• Kew et al (Kew, Dias et al. 2014)
Kew conducted a Cochrane network meta-analysis in 2014 to assess the benefits of
each type of treatment (e.g. long-acting beta2-agonists) relative to the others for
quality of life and lung function. Kew also looked at how much individual treatments
varied (e.g. How different were the three inhaled steroids from one other?) and
whether particular treatments were more effective than others. Kew assessed the
data for six months and 12 months separately and reported six months as the primary
findings.
Kew found 71 relevant studies, but not all measured the outcomes we were
interested in. Forty-two studies were included in the quality of life analyses
(measured on St George's Respiratory Questionnaire), and 46 were included in the
lung function analyses. Evidence from good quality and similar trials supported
LABA/ICS combinations as the most likely treatment strategy to bring the greatest
improvement to quality of life and lung function. Combination therapy gave an
average benefit of 3.9 units over placebo at six months. LAMAs and LABAs were
ranked second and third at six months (-2.63 and -2.29 units, respectively), especially
when unreliable trials were not included, but a large degree of overlap in the
estimates was noted. Combination LABA/ICS was the highest ranked class for
trough forced expiratory volume in one second (FEV1), with mean improvement over
placebo of 133 mL at six months (95% credible Interval (CrI) 101 to 164). As was the
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case for SGRQ, LAMAs (mean difference (MD) 104, 95% CrI 82 to 125) were ranked
just ahead of LABAs (MD 99, 95% CrI 72 to 128) at six months, and ICSs were the
lowest ranked class (MD 65, 95% CrI 33 to 97). For both outcomes, the effects of
LABA and ICS used alone appeared to increase when used together for six months,
but initial differences between the treatment classes were less obvious after a year
of treatment.
Kew concluded that quality of life and lung function were improved most on
combination inhalers (LABA and ICS) and least on ICS alone at 6 and 12 months.
Overall LAMA and LABA inhalers had similar effects, particularly at 12 months. The
network has demonstrated the benefit of ICS when added to LABA for these
outcomes in participants who largely had an FEV1 that was less than 50% predicted,
but the additional expense of combination inhalers and any potential for increased
adverse events (which has been shown by other reviews) require consideration.
• Ni et al (Ni, Soe et al. 2014)
Ni included 12 studies involving 9547 COPD patients in this 2014 Cochrane review
treated over a period of four to 52 weeks. These studies were sponsored by drug
companies and were well designed. Both patients and the people doing the research
did not know which treatment the patients were getting; although in one study one
treatment was known to both parties. More men than women took part, and they
were mostly Caucasians. They were in their 60s and had smoked a lot in their lives.
These people had moderate to severe symptoms when they started treatment.
Aclidinium did not reduce the number of people with flare-ups that need additional
drugs. There was little or no difference in deaths or serious side effects between
aclidinium and a dummy inhaler. Aclidinium inhalers improved quality of life more
than the dummy inhalers. People who took aclidinium had fewer hospital admissions
due to serious flare-ups. Based on our results, among 1000 COPD patients using a
dummy inhaler over four weeks to one year 37 would have severe flare-ups needing
hospital admission. Only 17 to 33 patients out of 1000 would require hospital
admission if they were using aclidinium inhalers. Ni also set out to compare this new
medication with tiotropium, which is already used to treat COPD. There were only
two studies for this comparison thus they could not be sure how aclidinium compared
to tiotropium. Ni also could not compare aclidinium with another well known inhaler
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that contains the drug formoterol because of unreliable data. For the comparison of
aclidinium inhalers and dummy inhalers, the Investigators were confident that there
are benefits in terms of the number of hospitalisations and patients' quality of life; we
are less certain about the numbers of flare-ups needing additional drugs and serious
side effects. They did not have enough information to assess any effect on the
number of deaths nor enough information to reliably compare aclidinium with
tiotropium or formoterol.
They concluded that Aclidinium is associated with improved quality of life and
reduced hospitalisations due to severe exacerbations in patients with moderate to
severe stable COPD compared to placebo. Overall, aclidinium did not significantly
reduce mortality, serious adverse events or exacerbations requiring oral steroids or
antibiotics, or both.
• Ni et al 2018 (Ni, Moe et al. 2018)
In 2018, Ni also published a Cochrane review of studies on aclidinium and formoterol
combination and included seven studies involving 5921 people with COPD which
ranged from four weeks to one year long. Most participants were men in their 60s,
moderate-to-heavy smokers, around half of whom were current smokers. They had
moderate-to-severe symptoms of COPD when they started treatment. People in the
studies took either combined inhalers containing aclidinium and formoterol or
aclidinium or formoterol or placebo through a similar inhaler. People taking combined
inhaler and aclidinium inhaler were not different in terms of flare-ups that need
additional medicines, quality of life, hospitalisations, side effects or serious side
effects. However, they were less breathless than those taking aclidinium inhaler.
Fourteen people with COPD would need to be treated with combined inhalers to have
one additional person with a clinically significant improvement in breathlessness.
People on combined inhalers were likely to have fewer flare-ups, side effects and
symptoms and a better quality of life compared to those taking formoterol inhaler.
But, there was little or no difference in hospital admissions due to severe flare-ups,
serious side effects or the risk of dying. When compared to dummy inhalers, people
taking combined inhalers experienced less breathlessness and better quality of life.
Seven people with COPD would need to be treated with combined inhaler to achieve
a significant improvement in quality of life than dummy inhaler. For flare-ups, hospital
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admissions, side effects, serious side effects and death, there was no difference
between combined and dummy inhalers. Ni had to interpret the results carefully as
all the included studies were sponsored by pharmaceutical companies, which could
have led to bias. However, the included studies were generally conducted in a
systematic and acceptable manner. The Investigators were confident that combined
inhalers are more effective than single or dummy inhalers at improving
breathlessness and lung function. However, they were less certain about its effects
on flare-ups, hospital admissions, quality of life and side effects.
Conclusions made stated that combined inhalers are more effective than individual
or dummy inhalers for relieving breathlessness and improving lung performance.
They also lead to better quality of life than formoterol or dummy inhalers. However,
they are not different from individual or dummy inhalers in terms of flare-ups or
hospital admissions. These combined inhalers have similar safety profiles as
individual or dummy inhalers in terms of death, side effects or serious side effects.
Combined inhalers probably had lesser side effects and moderate flare-ups than
formoterol, but further studies are needed to confidently support this finding. In
summary, the combined inhalers are an effective option for treatment of COPD and
appear to have a similar safety profile to individual or dummy inhalers.
• Farne et al 015 (Farne and Cates 2015)
In this 2015 Cochrane systematic review, the Investigators found 10 studies involving
10,894 participants comparing the long-term effectiveness and side effects of
combining tiotropium with a LABA. The combination of tiotropium plus LABA resulted,
on average, in a slightly better quality of life and lung function for the participants
compared to using only either tiotropium or a LABA alone, but did not show a
difference in hospital admissions or death. The combination treatment also reduced
the risk of episodes of acutely worse symptoms ('exacerbations'), compared to a
LABA alone but not tiotropium. There were not enough data to determine the risks
and benefits of the different types of LABA.
The conclusions were that this review indicated a small mean improvement in health-
related quality of life and FEV1 for participants on a combination of tiotropium and
LABA compared to either agent alone, and this translated into a small increase in the
number of responders on combination treatment. In addition, adding tiotropium to
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LABA reduced exacerbations, although adding LABA to tiotropium did not. Hospital
admission and mortality were not altered by adding LABA to tiotropium, although
there may not be enough data. While it is possible that this is affected by higher
attrition in the tiotropium group, one would expect that participants withdrawn from
the study would have had less favourable outcomes; this means that the expected
direction of attrition bias would be to reduce the estimated benefit of the combination
treatment. The results were largely from studies of olodaterol and there was
insufficient information to assess whether the other LABAs were equivalent to
olodaterol or each other.
Lastly, we identified a recent NICE guideline (Chronic obstructive pulmonary
disease in over 16s: diagnosis and management. NICE guideline. Published: 5
December 2018. nice.org.uk/guidance/ng115). The recommendations are
reproduced here:
Inhaled combination therapy
Inhaled combination therapy refers to combinations of long-acting muscarinic antagonists (LAMA), long-acting beta2
agonists (LABA) and inhaled corticosteroids (ICS).
The evidence on triple therapy (LAMA+LABA+ICS) is being reviewed as part of the 2019 update to this guideline.
This update is expected to publish in June 2019.
1.2.10 Do not assess the effectiveness of bronchodilator therapy using lung function alone. Include a variety of
other measures such as improvement in symptoms, activities of daily living, exercise capacity, and rapidity of
symptom relief. [2004]
1.2.11 Offer LAMA+LABA[2] to people who:
• have spirometrically confirmed COPD and
• do not have asthmatic features/features suggesting steroid responsiveness and
• remain breathless or have exacerbations despite:
o having used or been offered treatment for tobacco dependence if they smoke and
o optimised non-pharmacological management and relevant vaccinations and
o using a short-acting bronchodilator. [2018]
https://www.nice.org.uk/guidance/indevelopment/gid-ng10128https://www.nice.org.uk/guidance/ng115/chapter/Recommendations#ftn.footnote_2https://www.nice.org.uk/guidance/ng115/chapter/recommendations#asthmatic-featuresfeatures-suggesting-steroid-responsiveness
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Summary of comparative effectiveness evidence appraisal
Evidence appraisal for specific long-acting muscarinic antagonists (LAMAs) which
result in bronchodilation with a duration of action of 12 to 24 hours, depending on the
agent. A number of LAMAs are available, which are delivered via a range of devices;
aclidinium, glycopyrronium, tiotropium and umeclidinium (Ellipta).
Aclidinium: Aclidinium is a twice daily LAMA. A Cochrane systematic review of 12
RCTs (9,547 participants) showed that, compared to placebo, aclidinium resulted in
marginal improvements in quality of life and FEV1, and reduced the number of
patients with exacerbations requiring hospitalisation (NNT 77, 95% CI 51 to 233) (Ni,
Soe et al. 2014) [evidence level I]. Aclidinium has also been shown to reduce the
rate of moderate to severe exacerbations (OR 0.80) (Wedzicha, Agusti et al. 2016)
[evidence level I].
Glycopyrronium: Once daily glycopyrronium demonstrated significant improvement
in spirometry and a reduction in the rate of moderate to severe exacerbations, but no
difference in quality of life, compared with placebo (D'Urzo, Ferguson et al. 2011,
Kerwin, Hebert et al. 2012) [evidence level II]. In an RCT comparing glycopyrronium
to tiotropium, there was no difference in FEV1, dyspnoea, quality of life, exacerbation
rate or adverse effects (Chapman, Beeh et al. 2014) [evidence level II].
Tiotropium: Once daily tiotropium resulted in improved quality of life, and reduced
exacerbation rates (OR 0.78, 95% CI 0.70 to 0.87; NNT 16, 95% CI 10 to 36)
compared to placebo, in a Cochrane systematic review of 22 studies (23,309
participants) (Karner, Chong et al. 2014) [evidence level I]. Tiotropium improved
FEV1 (mean difference 119 mL, 95% CI 113 to 125), and there was no overall
difference in mortality. In a 2 year RCT of 841 COPD patients with post-
bronchodilator FEV1 >50% predicted, tiotropium resulted in a significantly higher
FEV1 (mean difference of 157 ml, 95% CI 123 to 192) and reduced annual decline in
post-bronchodilator FEV1 (mean difference 22 ml per year, 95% CI 6 to 37),
compared to placebo (Zhou, Zhong et al. 2017) [evidence level II]. However, there
was a high withdrawal rate and 40% were current smokers.
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Compared to ipratropium, tiotropium had beneficial effects for quality of life,
dyspnoea and exacerbation rates (Yohannes, Willgoss et al. 2011) [evidence level
I]. Compared to LABAs, tiotropium reduced exacerbation rates (Vogelmeier, Hederer
et al. 2011, Decramer, Chapman et al. 2013) [evidence level II], whereas effects were
heterogeneous for quality of life, compared to various LABAs (Chong, Karner et al.
2012, Decramer, Chapman et al. 2013) [evidence level II]. A Cochrane meta-
analysis comparing treatment with tiotropium [HandiHaler or Respimat] with
ipratropium bromide (via MDI) for patients with stable COPD found that tiotropium
treatment, was associated with improved lung function, fewer hospital admissions
(including those for exacerbations of COPD), fewer exacerbations of COPD and
improved quality of life. There were both fewer serious adverse events and disease
specific events in the tiotropium group, but no signifiant difference in deaths with
ipratropium bromide when compared to tiotropium. Thus, tiotropium appears to be
a reasonable choice (instead of ipratropium bromide) for patients with stable COPD
(Cheyne, Irvin-Sellers et al. 2015).
Umeclidinium: Once-daily umeclidinium significantly improved lung function,
dyspnoea and quality of life, compared with placebo (Trivedi, Richard et al. 2014)
[evidence level II]. Umeclidinium resulted in a greater improvement in FEV1 than
tiotropium, but there were no significant differences between umeclidinium and
tiotropium for dyspnoea, SGRQ or CAT scores (Feldman, Maltais et al. 2016)
[evidence level II].
Network meta-analyses of LAMAs: A network meta-analysis of LAMAs versus
placebo showed that there were no statistically significant differences among LAMAs
in preventing moderate-to-severe COPD exacerbations (Oba and Lone 2015)
[evidence level I]. Tiotropium HandiHaler was the only LAMA formulation which
reduced severe exacerbations (HR 0.73; 95% CrI 0.60– 0.86). Another network
meta-analysis showed that current LAMAs have similar efficacy for change in FEV1,
SGRQ, dyspnoea and rescue medication use (Ismaila, Huisman et al. 2015)
[evidence level I]. However, with few head to head comparisons of LAMAs available,
the choice of LAMA and inhaler device depends on patient and clinician preferences.
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A meta-analysis of 9 studies of LAMA vs. LABA inhalers (17,120 COPD patients,
with tiotropium as the most common LAMA) showed that LAMAs had reduced
exacerbation rates (RR 0.88, 95% CI 0.84 to 0.93) and exacerbation-related
hospitalisations (RR 0.78, 95% CI 0.69 to 0.87), compared to LABAs (Maia, Pincelli
et al. 2017) [evidence level I].
10. Review on harms and toxicity: summary of evidence on safety
Adverse effects
Extensive use of this class of agents in a wide range of doses and clinical settings
has shown them to be very safe. Inhaled anticholinergic drugs are poorly absorbed
which limits the systemic effects observed with atropine (Tashkin 2010). The main
side effect is dryness of mouth (Disse, Speck et al. 1999, Tashkin 2010).
Although occasional urinary symptoms have been reported, there are no data to
prove a true causal relationship (Kesten, Jara et al. 2006). Some patients using
ipratropium report a bitter, metallic taste.
An unexpected small increase in cardiovascular events in COPD patients regularly
treated with ipratropium bromide has been reported (Michele, Pinheiro et al. 2010).
In a large, long-term clinical trial in COPD patients, tiotropium added to other
standard therapies had no effect on cardiovascular risk (Tashkin 2010).
Although there were some initial concerns regarding the safety of tiotropium delivery
via the Respimat® inhaler (Verhamme, Afonso et al. 2013), the findings of a large
trial observed no difference in mortality or exacerbation rates when comparing
tiotropium in a dry-powder inhaler and the Respimat® inhaler (Wise, Anzueto et al.
2013).
There are less safety data available for the other LAMAs, but the rate of anti-
cholinergic side effects for drugs in this class appears to be low and generally similar
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(Jones, Singh et al. 2012). Use of solutions with a facemask can precipitate acute
glaucoma, probably as a direct result of the contact between the solution and the eye
(Mulpeter, Walsh et al. 1992, Karabis, Lindner et al. 2013).
Relevant available data on safety:
Adverse effects of LAMAs notably include dry mouth, constipation and urinary
retention (Halpin, Dahl et al. 2015) and as described above.
A safety study showed similar rates of death and exacerbations with tiotropium
HandiHaler and tiotropium Respimat (Wise, Anzueto et al. 2013) [evidence level II].
Summary of regulatory status of the medicine
LAMA is approved for use in various jurisdictions as follows:
EMA in the EU:
• Tiotropium - List of nationally authorised medicinal products.
EMA/356882/2017
Other LAMA medicines in the same class
• Aclidinium bromide (Bretaris Genuair) is indicated as a maintenance
bronchodilator treatment to relieve symptoms in adult patients with chronic
obstructive pulmonary disease (COPD).
• Glycopyrronium (Seebri Breezhaler) is indicated as a maintenance
bronchodilator treatment to relieve symptoms in adult patients with chronic
obstructive pulmonary disease (COPD).
• Umeclidinium bromide (Incruse Ellipta (previously Incruse)) Indicated as a
maintenance bronchodilator treatment to relieve symptoms in adult patients
with chronic obstructive pulmonary disease (COPD).
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FDA in USA for Tiotropium:
• SPIRIVA (TIOTROPIUM BROMIDE) | NDA #021395 |
POWDER;INHALATION | Prescription | BOEHRINGER INGELHEIM
• SPIRIVA RESPIMAT (TIOTROPIUM BROMIDE) | NDA #021936 | SPRAY,
METERED;INHALATION | Prescription | BOEHRINGER INGELHEIM
• SPIRIVA RESPIMAT (TIOTROPIUM BROMIDE) | NDA #207070 |
SPRAY;INHALATION | Prescription | BOEHRINGER INGELHEIM
TGA in Australia for Tiotropium:
• ARTG ID 81525 - SPIRIVA is indicated for the long term maintenance
treatment of bronchospasm and dyspnoea associated with chronic obstructive
pulmonary disease
• (COPD). SPIRIVA is indicated for the prevention of COPD exacerbations.
• ARTG ID 132578 - COPD:
• SPIRIVA RESPIMAT is indicated for the long term maintenance treatment of
bronchospasm and dyspnoea associated with chronic obstructive pulmonary
disease (COPD). SPIRIVA RESPIMAT is indicated for the prevention of
COPD exacerbations.
To our knowledge, generics are not yet available.
11. Available data on cost-effectiveness within the pharmacological class or
therapeutic group
A Pubmed search with pearling identified applicable and non-applicable systematic
reviews and primary studies on pharmacoeconomic evaluation of LAMA medications
and comparison with other drugs used on COPD maintenance therapy (Naik, Kamal
et al. 2010, Hertel, Kotchie et al. 2012, Hettle, Wouters et al. 2012, Zaniolo, Iannazzo
et al. 2012, Hoogendoorn, Al et al. 2013, Nowak, Ehlken et al. 2013, Samyshkin,
Schlunegger et al. 2013, Price, Keininger et al. 2014, Thorlund, Zafari et al. 2014,
Eklund, Afzal et al. 2015, Punekar, Landis et al. 2015, Ramadan, Kabbara et al.
-
2015, Eklund, Afzal et al. 2016, Miravitlles, Galdiz et al. 2016, Ramos, Haughney et
al. 2016, Tebboth, Ternouth et al. 2016, Calzetta, Rogliani et al. 2017, Samp, Joo et
al. 2017, van der Schans, Goossens et al. 2017, Wilson, Patel et al. 2017, Chan, Tan
et al. 2018, Chapin, Mann et al. 2018, Driessen, Shah et al. 2018, Driessen, Whalen
et al. 2018, Kiff, Ruiz et al. 2018, Rajagopalan, Bloudek et al. 2018).
The synthesis of the current data is clearly summarised in a systematic literature
search of 18 recent pharmacoeconomic analyses of COPD maintenance treatments
(van der Schans, Goossens et al. 2017). The Investigators found 6 papers reporting
the cost effectiveness of LAMA monotherapy. Many studies were funded by the
manufacturer, and all studies indicated favourable cost effectiveness. Exacerbation
and mortality rates were found to be the main drivers of cost effectiveness. A
Bayesian comparison of Pair-wise Meta Analyses (PMA) and Network Meta
Analyses (NMA) of COPD treatments reported that at $40,000/QALY threshold, PMA
suggested LAMA had a 30% probability of being the most cost-effective whereas the
NMA suggested that LAMA had a 19% probability of being cost-effective (Thorlund,
Zafari et al. 2014).
It should be noted that the Investigators considered that the QALYs gained was small
and most studies poorly represented the cost effectiveness of real-life medication
use (van der Schans, Goossens et al. 2017). Others have noted potential issues
with adherence (Punekar, Landis et al. 2015).
Representative costs in Australia and USA for the examplar medication
Australia
Spiriva 18 mcg Handihaler: registered, May 2002, launched
• Ex-factory Price: 38,43 AUD monthly costs (30day pack).
Spiriva Respimat 2.5 mcg inhalation solution: Registered April 2008. Launched
• Ex-factory Price: 38,43 AUD (monthly costs 30 day pack)
USA
-
Spiriva 18 mcg Handihaler: registered, Jan 2004, launched
• WAC Price: $429.47 (as of Jan 2019) monthly costs (30day pack).
Spiriva Respimat 2.5 mcg inhalation solution: Registered Sept 2014. Launched
• WAC Price: $429.47 (as of Jan 2019) monthly costs (30day pack).
-
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