Low-dose radiation therapy for COVID-19 pneumonia: a pilot study

Area of Science:

• Pulmonology
• Oncology
• Infectious Diseases

Background:

• Coronavirus disease 2019 (COVID-19) is a global pandemic with no specific effective treatment.
• Severe pneumonia and respiratory failure are primary causes of mortality in COVID-19 patients.
• Low-dose radiation therapy (LDRT) exhibits anti-inflammatory properties, potentially mitigating lung inflammation.

Purpose of the Study:

• To assess the feasibility and clinical efficacy of LDRT in managing COVID-19 pneumonia.
• To evaluate LDRT's potential to reduce pneumonia severity and mortality in COVID-19 patients.

Main Methods:

• A pilot trial involving 10 COVID-19 patients with moderate to severe disease (NEWS ≥5).
• Patients received standard COVID-19 care plus single-fraction LDRT (70cGy) to both lungs.
• Clinical response was monitored using the National Early Warning Score (NEWS).

Main Results:

• All 10 patients completed the LDRT treatment without acute radiation toxicity.
• Nine out of 10 patients achieved complete clinical recovery within 3-7 days.
• One patient with hypertension experienced clinical deterioration and died 24 days post-LDRT.

Conclusions:

• LDRT is a feasible treatment option for COVID-19 patients with moderate to severe pneumonia.
• The promising results warrant further investigation through randomized controlled trials.
• LDRT may offer a novel therapeutic approach for COVID-19 management.