Recommended Treatment for COVID-19
The recommended treatment for COVID-19 depends on disease severity, with supportive care being the cornerstone for mild cases, dexamethasone for patients requiring oxygen, and nirmatrelvir/ritonavir as the preferred antiviral for high-risk outpatients with mild-to-moderate disease. 1
Treatment Algorithm Based on Disease Severity
Mild COVID-19 (Outpatient)
First-line approach: Supportive care with adequate hydration, nutrition, rest, and over-the-counter medications for symptom management 1
- Acetaminophen or ibuprofen for fever and pain
- Consider honey for cough in patients over 1 year of age
- Albuterol MDI for patients with pre-existing asthma who develop respiratory symptoms
For high-risk outpatients: Nirmatrelvir/ritonavir (Paxlovid) initiated within 7 days of symptom onset for a 3-day course 1
- High-risk factors include older age, immunocompromised status, and comorbidities such as cardiovascular disease, diabetes, and obesity
Alternative antiviral: Remdesivir can be considered for non-hospitalized patients diagnosed with mild-to-moderate COVID-19 who are at high risk for progression to severe disease 2
- Should be initiated as soon as possible after diagnosis and within 7 days of symptom onset
- Recommended total treatment duration is 3 days
Moderate to Severe COVID-19 (Hospitalized)
Oxygen therapy: Provide supplemental oxygen as needed to maintain SpO2 ≥ 90-96% 1
- Consider high-flow nasal cannula (HFNC) or noninvasive continuous positive airway pressure (CPAP) for patients with hypoxemic respiratory failure without immediate indication for invasive mechanical ventilation 3
- Consider awake prone positioning for patients on high-flow oxygen or non-invasive ventilation
Corticosteroids:
Anticoagulation:
Immunomodulators:
- Consider tocilizumab for patients with elevated inflammatory markers who are rapidly deteriorating despite corticosteroids 1
Remdesivir:
- Consider for hospitalized patients not requiring invasive mechanical ventilation 3, 2
- Not recommended for patients requiring invasive mechanical ventilation 3
- Treatment duration: 5 days for hospitalized patients not requiring invasive mechanical ventilation; may extend up to 10 days if no clinical improvement 2
- Treatment duration: 10 days for hospitalized patients requiring invasive mechanical ventilation and/or ECMO 2
Treatments NOT Recommended
- Hydroxychloroquine (strong recommendation against) 3, 4
- Hydroxychloroquine and azithromycin in combination 3
- Lopinavir-ritonavir 3
- Azithromycin alone (in absence of bacterial infection) 3
- Colchicine for hospitalized patients 3
- Interferon-β 3
Special Populations
Patients with Hematological Malignancies
- Deferral of chemotherapy is not advisable for patients with active cancer and asymptomatic SARS-CoV-2 infection 3
- JAK2-inhibitors and TKI/BTKi should not be discontinued, even in patients with COVID-19 3
- Defer cellular therapy such as HSCT or CAR-T in case of SARS-CoV-2 infection 3
Patients with Cardiovascular Conditions
- For patients with COVID-19 and confirmed acute coronary syndrome (ACS), dual antiplatelet therapy (DAPT) is recommended 3
- For patients with COVID-19 on DAPT for recent ACS who are receiving prophylactic-dose anticoagulant therapy, continue DAPT 3
- For patients with new-onset atrial fibrillation, start therapeutic-dose parenteral anticoagulation irrespective of CHA2DS2-VASc score 3
Infection Prevention Measures
- Implement strict infection control measures: hand hygiene, physical distancing, face masks, and ventilation of rooms 3, 5
- Place COVID-19 patients in single rooms, avoiding positive pressure rooms 3
- Healthcare workers should use appropriate PPE including N95/FFP2 respirators during aerosol-generating procedures 1
Common Pitfalls and Caveats
Delayed treatment initiation: Antiviral treatments should be initiated as early as possible in the disease course, ideally within 7 days of symptom onset 1, 2
Inappropriate antibiotic use: Avoid empiric antibiotics unless bacterial coinfection is suspected, as this contributes to antimicrobial resistance 1
Overlooking thromboprophylaxis: COVID-19 increases thrombotic risk, so appropriate anticoagulation is essential for hospitalized patients 3
Premature discontinuation of home medications: Medications such as JAK2-inhibitors and TKI/BTKi should be continued in patients with COVID-19 3
Overuse of corticosteroids: While beneficial in patients requiring oxygen, corticosteroids may be harmful in patients with mild disease not requiring oxygen 3
By following this evidence-based approach to COVID-19 treatment, clinicians can optimize patient outcomes while minimizing potential harms from inappropriate therapies.