Edaravone in Patients with Shortness of Breath
Edaravone can be administered to patients experiencing shortness of breath (dyspnea), but caution is warranted as dyspnea has been reported as a serious treatment-emergent adverse event with this medication. 1, 2
Safety Profile of Edaravone in Relation to Dyspnea
- Dyspnea is among the most commonly reported serious adverse events in patients receiving edaravone treatment for ALS 2
- In post-marketing surveillance data, dyspnea was identified as one of the most frequently reported adverse events in patients treated with edaravone 2
- Recent long-term safety studies of edaravone oral suspension also list dyspnea among the most common treatment-emergent adverse events 3
Clinical Context and Management Considerations
Underlying Cause Assessment
- Before administering edaravone to patients with dyspnea, the underlying cause of shortness of breath should be identified and treated when possible 4
- A stepwise approach to treating dyspnea is recommended, focusing first on treating the etiology when death is not imminent 4
Non-Pharmacological Interventions
- Non-pharmacological interventions should be implemented before or alongside pharmacological treatment for dyspnea 4:
- Optimal positioning (sitting position, elevation of upper body)
- Cooling the face, opening windows
- Using small ventilators to increase ambient air flow
- Respiratory training techniques 4
Pharmacological Management of Dyspnea
- Opioids remain the first-line pharmacological treatment for dyspnea with sufficient evidence for efficacy 4
- Opioids reduce breathlessness in patients with various conditions including advanced COPD, interstitial lung disease, cancer, and chronic heart failure 4
- For opioid-naïve patients, starting doses for dyspnea are lower than those used for pain palliation 4
- Benzodiazepines can be considered as second-line agents if dyspnea is not adequately controlled with opioids 4
Special Considerations When Using Edaravone
- Monitor patients closely for worsening respiratory symptoms, as respiratory failure has been reported as a serious adverse event with edaravone 1, 2
- Edaravone oral suspension (105 mg) has a bioavailability of 57% compared to intravenous edaravone (60 mg) and should be taken on an empty stomach in the morning 1
- The medication should be administered with water and no food or beverages for 1 hour after administration 1
- Patients with ALS often develop respiratory complications as the disease progresses, so regular assessment of respiratory function is important 1, 3
Conclusion for Clinical Practice
When considering edaravone for a patient with dyspnea:
- Assess and treat the underlying cause of dyspnea first 4
- Implement appropriate non-pharmacological interventions 4
- Consider opioids as first-line pharmacological treatment for dyspnea if needed 4
- If edaravone is indicated for the patient's underlying condition (such as ALS), it can be administered with appropriate monitoring for respiratory symptoms 1, 2, 3
- Be vigilant for worsening dyspnea as this is a reported adverse effect of edaravone therapy 2, 3