Treatment algorithm

Please note that formulations/routes and doses may differ between drug names and brands, drug formularies, or locations. Treatment recommendations are specific to patient groups: see disclaimer

ONGOING

infrequent symptoms

Back
1st line – 

SABA as needed

The information in this treatment algorithm is largely based on the British Thoracic Society/Scottish Intercollegiate Guidelines Network (BTS/SIGN) guideline, which was last updated in July 2019. For information on how recommendations from the UK National Institute for Health and Care Excellence (NICE) differ, see Management Approach. Follow the recommended approach in your region.

Prescribe an inhaled short-acting beta agonist (SABA) as short-term therapy, to be used as needed to relieve symptoms in symptomatic patients.[55]

In practice, only a very limited number of patients will need occasional use of SABAs alone with no preventer therapy. Most patients will also need regular preventer therapy with an inhaled corticosteroid (ICS).

SABAs work more quickly and/or with fewer adverse effects than the alternatives (ipratropium, theophylline).[55][97]

If the patient needs more than one short-acting bronchodilator inhaler device a month, arrange urgent assessment of their asthma and take measures to improve asthma control if this is poor.[55]

High SABA use is associated with a significant increase in exacerbations and asthma-related healthcare utilisation.[98][99] Overuse of SABAs is also a risk factor for fatal asthma.[55] Patient populations most at risk for SABA over-reliance include older adults, smokers, and patients with lower socioeconomic status.[99]

Primary options

salbutamol inhaled: (100 micrograms/dose inhaler) 100-200 micrograms inhaled up to four times daily

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms (e.g., shortness of breath, wheezing); breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma. Consider stepping up treatment to step 1 therapy (i.e., adding an inhaled corticosteroid).[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms in patients whose asthma is otherwise well controlled with therapy, advise the patient to use an inhaled SABA immediately before exercise.[55]

step 1: initial therapy (not controlled by SABA as needed)

Back
1st line – 

low-dose ICS

Consider prescribing a low-dose inhaled corticosteroid (ICS) alongside a short-acting beta agonist (SABA; see below) if the patient has any of the following asthma-related features: acute asthma attack (requiring oral corticosteroids) in the past 2 years; using inhaled SABA three times a week or more; symptomatic three times a week or more; waking one night a week.[55]

Although alternatives are available (e.g., sodium cromoglicate, nedocromil, theophylline), ICSs are the most effective preventer drug for achieving overall treatment goals.[100][101][102][103] Adding ICS to SABA significantly reduces the risk of severe exacerbations and asthma-related death associated with overuse of SABA.[1][104][105]

Start the patient at a reasonable starting dose of ICS appropriate to the severity of their asthma.[55] Titrate to the lowest dose at which effective control of asthma is maintained.[55] Higher doses might be needed in patients who smoke or used to smoke.[55] Initially give ICSs twice daily (except ciclesonide, which should only be given once daily). If the patient can establish good control, consider once-daily ICSs (at the same total daily dose).[55]

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on British Thoracic Society/Scottish Intercollegiate Guidelines Network (BTS/SIGN) guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone inhaled: standard-particle formulation: 200 micrograms inhaled twice daily; extra-fine particle formulation: 100 micrograms inhaled twice daily

OR

budesonide inhaled: 200 micrograms inhaled twice daily

OR

ciclesonide inhaled: 160 micrograms inhaled once daily

OR

fluticasone propionate inhaled: 100 micrograms inhaled twice daily

OR

mometasone inhaled: 200 micrograms inhaled twice daily

Back
Plus – 

SABA as needed

Treatment recommended for ALL patients in selected patient group

Prescribe an inhaled SABA as short-term therapy, to be used as needed to relieve symptoms in symptomatic patients.[55]

SABAs work more quickly and/or with fewer adverse effects than the alternatives (ipratropium, theophylline).[55][97]

If the patient is using 3 or more doses of SABA a week to manage their symptoms, consider stepping up to step 2 (see below).[55]

High SABA use is associated with a significant increase in exacerbations and asthma-related healthcare utilisation.[98][99] Overuse of SABAs is also a risk factor for fatal asthma.[55] Patient populations most at risk for SABA over-reliance include older adults, smokers, and patients with lower socioeconomic status.[99]

Primary options

salbutamol inhaled: (100 micrograms/dose inhaler) 100-200 micrograms inhaled up to four times daily

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 1 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: leukotriene receptor antagonist (LTRA); long-acting beta agonist (LABA); sodium cromoglicate or nedocromil; theophylline.[55][90][91]

step 2: initial add-on therapy (asthma not controlled with low-dose ICS and SABA as needed)

Back
1st line – 

fixed-dose LABA + low-dose ICS

Before stepping up to a new drug, always check the patient's inhaler technique and adherence to treatment, confirm the diagnosis of asthma, work with the patient to reduce or remove any triggers (e.g., smoking), and address comorbidities where feasible.[55]

If the patient's symptoms are not adequately controlled with low-dose inhaled corticosteroid (ICS) alone, British Thoracic Society/Scottish Intercollegiate Guidelines Network (BTS/SIGN) recommend to add an inhaled long-acting beta agonist (LABA).[55]

Prescribe a fixed-dose combination ICS/LABA inhaler.[55] LABAs should never be used without ICS.[55] LABA monotherapy is associated with an increased risk of adverse events, life-threatening asthma, and asthma hospitalisation events.[107][108]​ Experience in clinical practice shows that combination inhalers not only help patient adherence but also ensure that the LABA is not taken without the ICS.[55]​ The addition of an inhaled LABA to ICS alone improves lung function and symptoms, and decreases asthma attacks.[106]

Inhaled ICS/LABA can be prescribed either as a fixed-dose regimen (with short-acting beta agonist [SABA] as needed) or as combination maintenance and reliever therapy in a single inhaler (MART; see below).[55]

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on BTS/SIGN guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

budesonide/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

fluticasone propionate/salmeterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

Back
Plus – 

SABA as needed

Treatment recommended for ALL patients in selected patient group

The patient should continue with their intermittent reliever therapy, usually an inhaled SABA, as short-term therapy, to be used as needed to relieve symptoms.[55]

SABAs work more quickly and/or with fewer adverse effects than the alternatives (ipratropium; theophylline).[55][97]

If the patient is using 3 or more doses of SABA a week to manage their symptoms, consider stepping up to step 3 (see below).[55]

High SABA use is associated with a significant increase in exacerbations and asthma-related healthcare utilisation.[98][99] Overuse of SABAs is also a risk factor for fatal asthma.[55] Patient populations most at risk for SABA over-reliance include older adults, smokers, and patients with lower socioeconomic status.[99]

Primary options

salbutamol inhaled: (100 micrograms/dose inhaler) 100-200 micrograms inhaled up to four times daily

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 2 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: leukotriene receptor antagonist (LTRA); LABA; sodium cromoglicate or nedocromil; theophylline.[55][90][91]

Back
1st line – 

MART LABA + low-dose ICS

Before stepping up to a new drug, always check the patient's inhaler technique and adherence to treatment, confirm the diagnosis of asthma, work with the patient to reduce or remove any triggers (e.g., smoking), and address comorbidities where feasible.[55]

If the patient's symptoms are not adequately controlled with low-dose ICS alone, BTS/SIGN recommend to add an inhaled LABA, either as a fixed-dose regimen (with SABA as needed; see above) or as combination maintenance and reliever therapy in a single inhaler (MART).[55]

Consider MART, particularly if the patient has a history of asthma attacks on a fixed-dose LABA and a low-dose ICS.[55] MART allows for the rapid onset of a reliever effect with formoterol; by also including a dose of ICS, MART ensures that the dose of preventer medication increases as the need for a reliever increases.[55] Therefore, a comprehensive self-management plan must be provided with a MART regimen.[55] MART may also lower the overall dose of ICS needed to prevent asthma attacks.[55]

The patient should not use intermittent reliever therapy (e.g., an inhaled SABA) alongside MART.[55]

One Cochrane review of serious adverse events when taking ICS with and without regular formoterol found no difference in risk of death in adults taking ICS-formoterol versus ICS alone.[109] [ Cochrane Clinical Answers logo ]

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on BTS/SIGN guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

budesonide/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 2 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: LTRA; LABA; sodium cromoglicate or nedocromil; theophylline.[55][90][91]

step 3: additional controller therapies (asthma not controlled with step 2)

Back
1st line – 

fixed-dose LABA + medium-dose ICS

Before stepping up to a new drug, always check the patient's inhaler technique and adherence to treatment, confirm the diagnosis of asthma, work with the patient to reduce or remove any triggers (e.g., smoking), and address comorbidities where feasible.[55]

If symptom control remains suboptimal after initial add-on therapy, British Thoracic Society/Scottish Intercollegiate Guidelines Network (BTS/SIGN) recommend either increasing the inhaled corticosteroid (ICS) to medium dose or adding a leukotriene receptor antagonist (LTRA; see below).[55]

If there was some improvement when a long-acting beta agonist (LABA) was added as initial add-on therapy, but symptom control remains suboptimal, continue with the LABA and consider increasing the dose of ICS from low to medium (either a fixed-dose regimen or as MART [see below]).[55]​ In practice, this is the most commonly used option at step 3.

Consider stopping the LABA before increasing the ICS dose if there was no improvement when a LABA was added.[55] Bear in mind that in clinical practice, the LABA is very rarely stopped so proceed cautiously if considering this.

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on BTS/SIGN guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

budesonide/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

fluticasone propionate/salmeterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

fluticasone furoate/vilanterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

Back
Plus – 

SABA as needed

Treatment recommended for ALL patients in selected patient group

If the patient is taking a fixed-dose LABA, they should continue with their intermittent reliever therapy, usually an inhaled short-acting beta agonist (SABA), as short-term therapy, to be used as needed to relieve symptoms.[55]

SABAs work more quickly and/or with fewer adverse effects than the alternatives (ipratropium; theophylline).[55][97]

If the patient is using 3 or more doses of SABA a week to manage their symptoms, consider stepping up to step 4 (see below).[55]

High SABA use is associated with a significant increase in exacerbations and asthma-related healthcare utilisation.[98][99] Overuse of SABAs is also a risk factor for fatal asthma.[55] Patient populations most at risk for SABA over-reliance include older adults, smokers, and patients with lower socioeconomic status.[99]

Primary options

salbutamol inhaled: (100 micrograms/dose inhaler) 100-200 micrograms inhaled up to four times daily

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 3 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: LTRA; LABA; sodium cromoglicate or nedocromil; theophylline.[55][90][91]

Back
1st line – 

MART LABA + medium-dose ICS

Before stepping up to a new drug, always check the patient's inhaler technique and adherence to treatment, confirm the diagnosis of asthma, work with the patient to reduce or remove any triggers (e.g., smoking), and address comorbidities where feasible.[55]

If there was some improvement when a LABA was added as initial add-on therapy, but symptom control remains suboptimal, continue with the LABA and consider increasing the dose of ICS from low to medium (either as combined maintenance and reliever therapy [MART] or a fixed-dose regimen [see above]).[55]​ In practice, this is the most commonly used option at step 3.

MART allows for the rapid onset of a reliever effect with formoterol; by also including a dose of ICS, MART ensures that the dose of preventer medication increases as the need for a reliever increases.[55] Therefore, a comprehensive self-management plan must be provided with a MART regimen.[55] MART may also lower the overall dose of ICS needed to prevent asthma attacks.[55]

The patient should not use intermittent reliever therapy (e.g., an inhaled SABA) alongside MART.[55]

One Cochrane review of serious adverse events when taking ICS with and without regular formoterol found no difference in risk of death in adults taking ICS-formoterol versus ICS alone.[109] [ Cochrane Clinical Answers logo ]

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on BTS/SIGN guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

budesonide/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 3 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: LTRA; LABA; sodium cromoglicate or nedocromil; theophylline.[55][90][91]

Back
1st line – 

fixed-dose LABA + low-dose ICS

Before stepping up to a new drug, always check the patient's inhaler technique and adherence to treatment, confirm the diagnosis of asthma, work with the patient to reduce or remove any triggers (e.g., smoking), and address comorbidities where feasible.[55]

If there was some improvement when a LABA was added as initial add-on therapy, but symptom control remains suboptimal, continue with the LABA and consider adding an LTRA (see below).[55]

LABAs should never be used without ICS.[55] LABA monotherapy is associated with an increased risk of adverse events, life-threatening asthma, and asthma hospitalisation events.[107][108] Experience in clinical practice shows that combination inhalers not only help patient adherence but also ensure that the LABA is not taken without the ICS.[55]

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on BTS/SIGN guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

budesonide/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

fluticasone propionate/salmeterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

Back
Plus – 

LTRA

Treatment recommended for ALL patients in selected patient group

If there was some improvement when a LABA was added, but symptom control remains suboptimal, continue with the LABA and consider adding an LTRA (e.g., montelukast).[55]

BTS/SIGN recommend to consider stopping the LABA before starting the LTRA if there was no improvement when a LABA was added.[55] In clinical practice, the LABA is usually continued, so proceed with caution if considering this.

The Medicines and Healthcare products Regulatory Agency (MHRA) warns of serious behaviour- and mood-related adverse effects with montelukast, and advises that healthcare professionals: be alert for neuropsychiatric reactions in patients taking montelukast, including but not limited to sleep disturbances, depression and agitation, disturbances of attention or memory, speech impairment (stuttering), and obsessive-compulsive symptoms; advise patients and their carers to read carefully the list of neuropsychiatric reactions in the patient information leaflet and seek medical advice immediately should they occur; evaluate carefully the risks and benefits of continuing treatment if neuropsychiatric reactions occur.[92]​​

Primary options

montelukast: 10 mg orally once daily in the evening

Back
Plus – 

SABA as needed

Treatment recommended for ALL patients in selected patient group

The patient should continue with their intermittent reliever therapy, usually an inhaled SABA, as short-term therapy, to be used as needed to relieve symptoms.[55]

SABAs work more quickly and/or with fewer adverse effects than the alternatives (ipratropium; theophylline).[55][97]

If the patient is using 3 or more doses of SABA a week to manage their symptoms, consider stepping up to step 4 (see below).[55]

High SABA use is associated with a significant increase in exacerbations and asthma-related healthcare utilisation.[98][99] Overuse of SABAs is also a risk factor for fatal asthma.[55] Patient populations most at risk for SABA over-reliance include older adults, smokers, and patients with lower socioeconomic status.[99]

Primary options

salbutamol inhaled: (100 micrograms/dose inhaler) 100-200 micrograms inhaled up to four times daily

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

Back
Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 3 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: LTRA; LABA; sodium cromoglicate or nedocromil; theophylline.[55][90][91]

Back
1st line – 

MART LABA + low-dose ICS

Before stepping up to a new drug, always check the patient's inhaler technique and adherence to treatment, confirm the diagnosis of asthma, work with the patient to reduce or remove any triggers (e.g., smoking), and address comorbidities where feasible.[55]

If there was some improvement when combined maintenance and reliever therapy (MART) was started but symptom control remains suboptimal, continue with MART and consider adding an LTRA (see below).[55]

MART allows for the rapid onset of a reliever effect with formoterol; by also including a dose of ICS, MART ensures that the dose of preventer medication increases as the need for a reliever increases.[55] Therefore, a comprehensive self-management plan must be provided with a MART regimen.[55] MART may also lower the overall dose of ICS needed to prevent asthma attacks.[55]

The patient should not use intermittent reliever therapy (e.g., an inhaled SABA) alongside MART.[55]

One Cochrane review of serious adverse events when taking ICS with and without regular formoterol found no difference in risk of death in adults taking ICS-formoterol versus ICS alone.[109] [ Cochrane Clinical Answers logo ]

There may be a number of inhaler formulations available, and formulations may vary between regions. Examples of suitable regimens are recommended here, based on BTS/SIGN guidelines. Consult a local drug formulary for more information.

Primary options

beclometasone/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

OR

budesonide/formoterol inhaled: dose depends on brand and formulation; consult product literature for guidance on dose

Back
Plus – 

LTRA

Treatment recommended for ALL patients in selected patient group

If there was some improvement when MART was started, but symptom control remains suboptimal, continue with MART and consider adding an LTRA (e.g., montelukast).[55]

The Medicines and Healthcare products Regulatory Agency (MHRA) warns of serious behaviour- and mood-related adverse effects with montelukast, and advises that healthcare professionals: be alert for neuropsychiatric reactions in patients taking montelukast, including but not limited to sleep disturbances, depression and agitation, disturbances of attention or memory, speech impairment (stuttering), and obsessive-compulsive symptoms; advise patients and their carers to read carefully the list of neuropsychiatric reactions in the patient information leaflet and seek medical advice immediately should they occur; evaluate carefully the risks and benefits of continuing treatment if neuropsychiatric reactions occur.[92]​​

Primary options

montelukast: 10 mg orally once daily in the evening

Back
Plus – 

education and environmental control

Treatment recommended for ALL patients in selected patient group

Ensure all patients at all steps of therapy have access to a self-management programme, which should include a written personalised asthma action plan and education.[55][56][85] [ Cochrane Clinical Answers logo ] ​ This should be supported by regular professional review.[55][56]​ Advise the patient to take environmental control measures (e.g., reduce exposure to indoor and outdoor air pollution, tobacco smoke, and occupational and domestic allergens).[55][56]​ If you suspect an occupational cause, see Occupational asthma.

Consider breathing exercise programmes as part of an integrated approach to management, alongside pharmacological treatment, to improve the patient's quality of life and reduce symptoms.[55] Approaches used in practice include the Papworth method and the Buteyko method.[55] These techniques involve instruction by a trained therapist in exercises to reduce respiratory rate and minute volume, and to promote nasal, diaphragmatic breathing. Breathing exercises can lead to modest improvements in asthma symptoms and quality of life, and reduce bronchodilator requirement in adults with asthma, but have little effect on lung function or airway inflammation.[55][86][87][88][89] More studies are needed.[88] [ Cochrane Clinical Answers logo ]

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Consider – 

management of exercise-induced bronchoconstriction

Additional treatment recommended for SOME patients in selected patient group

Always review the patient's regular treatment and check their inhaler technique and adherence if they are experiencing exercise-induced symptoms; breakthrough exercise-induced bronchoconstriction may indicate poorly controlled asthma, potentially requiring stepping up of treatment.[55] [ Cochrane Clinical Answers logo ]

If exercise induces symptoms (e.g., shortness of breath, wheezing) in patients whose asthma is otherwise well controlled with step 3 therapy, advise the patient to use an inhaled SABA immediately before exercise.[55] In addition, consider adding one of the following to their usual medication: LTRA; LABA; sodium cromoglicate or nedocromil; theophylline.[55][90][91]

step 4: specialist therapies (asthma not controlled with step 3)

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1st line – 

referral to specialist

If the patient has severe poorly controlled asthma despite step 3 treatment, with good adherence and correct inhaler technique, British Thoracic Society/Scottish Intercollegiate Guidelines Network (BTS/SIGN) recommend referring to a specialist.[55] There are very few clinical trials in this specific patient group to guide management. Recommendations are largely based on extrapolation from trials of add-on therapy to inhaled corticosteroid (ICS) alone.[55]

The specialist might try a number of approaches, including: increasing the ICS from medium- to high-dose; adding a long-acting muscarinic antagonist (LAMA); adding theophylline; oral corticosteroids; biological agents; bronchial thermoplasty.[55]

A specialist may consider increasing the ICS to a high dose; this should only be done as part of a fixed-dose regimen, with a short-acting beta agonist (SABA) used as a reliever therapy (see above).[55][56]

If the patient's asthma does not respond to ICS plus long-acting beta agonist (LABA), the addition of a LAMA (e.g., tiotropium), to ICS is a possible alternative a specialist might consider.[55] There is insufficient evidence to suggest that addition of tiotropium to ICS in patients inadequately controlled on ICS alone has any benefit over addition of LABA to ICS.[55]

Oral theophylline is a bronchodilator which may be added to improve lung function and symptoms, but is associated with adverse effects including headache, nausea, and vomiting.[55] Plasma theophylline concentration should be checked 5 days after starting treatment and at least 3 days after any dose adjustment. Be aware that smoking increases the clearance of theophylline (therefore, the drug is less effective in people who smoke).

Some patients with very severe asthma not controlled with high-dose ICS, and who have also been trialled or are still taking LABA, leukotriene receptor antagonist (LTRA), LAMA, or theophylline, may require regular long-term oral corticosteroids.[55] In practice, only a small number of patients will have symptoms that remain uncontrolled despite high-dose therapies. For these patients, daily oral corticosteroids should only be used at the lowest dose providing adequate control.[55] All patients requiring frequent or continuous use of oral corticosteroids should be under the care of a specialist asthma service.[55]

If the patient has severe persistent asthma that continues to be uncontrolled despite other step 4 therapies, a specialist in a tertiary care centre may consider biological agents as an add-on to optimised standard therapy. Optimised standard therapy is defined as a full trial of, and if tolerated, documented compliance with, high-dose ICS, LABA, LTRA, theophylline, oral corticosteroids, and smoking cessation if clinically appropriate.[55] A specialist may consider one of a number of add-on biological agents. Some biologics are suitable for self-administration at home after appropriate training.[124]

Omalizumab is an option for patients with severe persistent allergic immunoglobulin E (IgE) mediated asthma who have: a positive skin test or in vitro reactivity to a perennial aeroallergen; reduced lung function (forced expiratory volume at 1 second [FEV₁] less than 80%); frequent daytime symptoms or night-time awakenings; multiple documented severe exacerbations despite daily high-dose ICS plus a LABA.[55][110][111][112][113][114][115]

Mepolizumab may be considered for severe refractory eosinophilic asthma if the patient's blood eosinophil count has been recorded as ≥300 cells per microlitre and they had at least 4 exacerbations needing systemic corticosteroids in the previous 12 months, or the patient has had continuous oral corticosteroids of at least the equivalent of prednisolone 5 mg/day over the previous 6 months.[55][114][116] Mepolizumab may be considered for severe refractory eosinophilic asthma if the patient's blood eosinophil count has been recorded as ≥400 cells per microlitre and they have had at least 3 exacerbations needing systemic corticosteroids in the previous 12 months (so the patient is also also eligible for either benralizumab or reslizumab - see below).[55][114][116]

Reslizumab is an option for severe eosinophilic asthma that is inadequately controlled despite maintenance therapy with high-dose ICS plus another drug, only if: the patient's blood eosinophil count has been recorded as 400 cells per microlitre; the patient has had at least 3 severe asthma exacerbations needing systemic corticosteroids in the previous 12 months.[55][114][117]

Benralizumab may be used for treating severe eosinophilic asthma that remains uncontrolled despite maintenance therapy with high-dose ICS and LABA, only if the patient's blood eosinophil count has been recorded as ≥300 cells per microlitre and the person has had 4 or more exacerbations needing systemic corticosteroids in the previous 12 months, or has had continuous oral corticosteroids of at least the equivalent of prednisolone 5 mg/day over the previous 6 months (i.e., the patient is eligible for mepolizumab).[55][114][118][119] Benralizumab may also be considered in this setting if the patient's blood eosinophil count has been recorded as ≥400 cells per microlitre with 3 or more exacerbations needing systemic corticosteroids in the past 12 months (i.e., the patient is eligible for reslizumab).[55][114][118][119]

Dupilumab is an option for patients with severe asthma with type 2 inflammation that is inadequately controlled, despite maintenance therapy with high-dose ICS and another maintenance treatment, only if: the patient has a blood eosinophil count of ≥150 cells per microlitre and fractional exhaled nitric oxide of ≥25 parts per billion, and has had at least 4 or more exacerbations in the previous 12 months; the patient is not eligible for mepolizumab, reslizumab, or benralizumab, or has asthma that has not responded adequately to these biological therapies.[120][121]

Tezepelumab may be considered for severe asthma when treatment with high-dose ICS plus another maintenance treatment has not controlled symptoms, only if: the patient has had 3 or more exacerbations in the previous year, or the patient is taking maintenance oral corticosteroids.[122][123]

Bronchial thermoplasty aims to reduce bronchial smooth muscle mass, therefore reducing the capacity for bronchoconstriction. In the UK, only a few specialist centres offer this treatment, which has considerable resource implications.[55] Any patients being considered for bronchial thermoplasty should be assessed to confirm the diagnosis of asthma, that uncontrolled asthma is the cause of their ongoing symptoms, and that they are adherent with current treatment.[55] An asthma specialist with expertise in bronchial thermoplasty should assess patients prior to undergoing treatment, and treatment should take place in a specialist centre with the appropriate resources and training, including access to an intensive care unit.[55] In people with severe asthma, bronchial thermoplasty improves asthma-specific quality of life, with a reduction in severe exacerbations and healthcare use in the post-treatment period.[125][126] In the UK, patients undergoing bronchial thermoplasty should have their details entered onto the Severe Asthma Registry. Bronchial thermoplasty is an invasive procedure and is associated with a high rate of adverse respiratory events in the short term.[127]

Primary options

Add-on LAMA

tiotropium inhaled: 5 micrograms inhaled once daily

OR

Add-on theophylline

theophylline: consult specialist for guidance on dose

OR

Add-on oral corticosteroid

prednisolone: consult specialist for guidance on dose

Secondary options

Add-on biological agent

omalizumab: dose depends on IgE concentration and body weight; consult specialist for guidance on dose

OR

Add-on biological agent

mepolizumab: 100 mg subcutaneously every 4 weeks

OR

Add-on biological agent

reslizumab: dose depends on body weight; consult specialist for guidance on dose

OR

Add-on biological agent

benralizumab: 30 mg subcutaneously every 4 weeks for the first 3 doses initially, followed by 30 mg every 8 weeks

OR

Add-on biological agent

dupilumab: dose depends on co-morbidities and other treatments; consult specialist for guidance on dose

OR

Add-on biological agent

tezepelumab: 210 mg subcutaneously every 4 weeks

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