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AIRWAYS DISORDERS NETWORK

Asthma and COPD Section

Respiratory syncytial virus (RSV) has been increasingly recognized as a prevalent cause of lower respiratory tract infection (LRTI) among adults in the United States. The risk of hospitalization and mortality from RSV-associated respiratory failure is higher in those with chronic lung disease. In adults aged 65 years or older, RSV has shown to cause up to 160,000 hospitalizations and 10,000 deaths annually.

CHEST
Dr. Melanie Krongold

In 2023, the US Food and Drug Administration approved the adjuvanted RSVPreF3 vaccine (Arexvy, GSK) and the bivalent RSVPreF vaccine (Abrysvo, Pfizer). Both vaccines have been shown to significantly reduce the risk of developing RSV LRTI and are currently recommended for single-dose administration in adults 60 years or older—irrespective of comorbidities.

RSV has been well established as a major cause of LRTI and morbidity among infants. Maternal vaccination with RSVPreF in patients who are pregnant is suggested between 32 0/7 and 36 6/7 weeks of gestation if the date of delivery falls during RSV season to prevent severe illness in young infants in their first months of life. At present, there are no data supporting vaccine administration to patients who are pregnant delivering outside of the RSV season.

CHEST
Dr. Megan Conroy


What about the rest of the patients? A phase 3b clinical trial to assess the safety and immunogenicity of the RSVPreF3 vaccine in individuals 18 to 49 years of age at increased risk for RSV LRTI, including those with chronic respiratory diseases, is currently underway with projected completion in April 2025 (clinical trials.gov; ID NCT06389487). Additional studies examining safety and immunogenicity combining RSV vaccines with PCV20, influenza, COVID, or Tdap vaccines are also underway. These outcomes will be significant for future recommendations to further lower the risk of developing LRTI, hospitalization, and death among patients less than the age of 60 with chronic lung diseases.


Resources

1. Melgar M, Britton A, Roper LE, et al. Use of respiratory syncytial virus vaccines in older adults: recommendations of the Advisory Committee on Immunization Practices - United States, 2023. MMWR Morb Mortal Wkly Rep. 2023;72(29):793-801.

2. Healthcare Providers: RSV Vaccination for Adults 60 Years of Age and Over. Centers for Disease Control and Prevention. Updated March 1, 2024. https://www.cdc.gov/vaccines/vpd/rsv/hcp/older-adults.html

3. Ault KA, Hughes BL, Riley LE. Maternal Respiratory Syncytial Virus Vaccination. The American College of Obstetricians and Gynecologists. Updated December 11, 2023. https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2023/09/maternal-respiratory-syncytial-virus-vaccination

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AIRWAYS DISORDERS NETWORK

Asthma and COPD Section

Respiratory syncytial virus (RSV) has been increasingly recognized as a prevalent cause of lower respiratory tract infection (LRTI) among adults in the United States. The risk of hospitalization and mortality from RSV-associated respiratory failure is higher in those with chronic lung disease. In adults aged 65 years or older, RSV has shown to cause up to 160,000 hospitalizations and 10,000 deaths annually.

CHEST
Dr. Melanie Krongold

In 2023, the US Food and Drug Administration approved the adjuvanted RSVPreF3 vaccine (Arexvy, GSK) and the bivalent RSVPreF vaccine (Abrysvo, Pfizer). Both vaccines have been shown to significantly reduce the risk of developing RSV LRTI and are currently recommended for single-dose administration in adults 60 years or older—irrespective of comorbidities.

RSV has been well established as a major cause of LRTI and morbidity among infants. Maternal vaccination with RSVPreF in patients who are pregnant is suggested between 32 0/7 and 36 6/7 weeks of gestation if the date of delivery falls during RSV season to prevent severe illness in young infants in their first months of life. At present, there are no data supporting vaccine administration to patients who are pregnant delivering outside of the RSV season.

CHEST
Dr. Megan Conroy


What about the rest of the patients? A phase 3b clinical trial to assess the safety and immunogenicity of the RSVPreF3 vaccine in individuals 18 to 49 years of age at increased risk for RSV LRTI, including those with chronic respiratory diseases, is currently underway with projected completion in April 2025 (clinical trials.gov; ID NCT06389487). Additional studies examining safety and immunogenicity combining RSV vaccines with PCV20, influenza, COVID, or Tdap vaccines are also underway. These outcomes will be significant for future recommendations to further lower the risk of developing LRTI, hospitalization, and death among patients less than the age of 60 with chronic lung diseases.


Resources

1. Melgar M, Britton A, Roper LE, et al. Use of respiratory syncytial virus vaccines in older adults: recommendations of the Advisory Committee on Immunization Practices - United States, 2023. MMWR Morb Mortal Wkly Rep. 2023;72(29):793-801.

2. Healthcare Providers: RSV Vaccination for Adults 60 Years of Age and Over. Centers for Disease Control and Prevention. Updated March 1, 2024. https://www.cdc.gov/vaccines/vpd/rsv/hcp/older-adults.html

3. Ault KA, Hughes BL, Riley LE. Maternal Respiratory Syncytial Virus Vaccination. The American College of Obstetricians and Gynecologists. Updated December 11, 2023. https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2023/09/maternal-respiratory-syncytial-virus-vaccination

AIRWAYS DISORDERS NETWORK

Asthma and COPD Section

Respiratory syncytial virus (RSV) has been increasingly recognized as a prevalent cause of lower respiratory tract infection (LRTI) among adults in the United States. The risk of hospitalization and mortality from RSV-associated respiratory failure is higher in those with chronic lung disease. In adults aged 65 years or older, RSV has shown to cause up to 160,000 hospitalizations and 10,000 deaths annually.

CHEST
Dr. Melanie Krongold

In 2023, the US Food and Drug Administration approved the adjuvanted RSVPreF3 vaccine (Arexvy, GSK) and the bivalent RSVPreF vaccine (Abrysvo, Pfizer). Both vaccines have been shown to significantly reduce the risk of developing RSV LRTI and are currently recommended for single-dose administration in adults 60 years or older—irrespective of comorbidities.

RSV has been well established as a major cause of LRTI and morbidity among infants. Maternal vaccination with RSVPreF in patients who are pregnant is suggested between 32 0/7 and 36 6/7 weeks of gestation if the date of delivery falls during RSV season to prevent severe illness in young infants in their first months of life. At present, there are no data supporting vaccine administration to patients who are pregnant delivering outside of the RSV season.

CHEST
Dr. Megan Conroy


What about the rest of the patients? A phase 3b clinical trial to assess the safety and immunogenicity of the RSVPreF3 vaccine in individuals 18 to 49 years of age at increased risk for RSV LRTI, including those with chronic respiratory diseases, is currently underway with projected completion in April 2025 (clinical trials.gov; ID NCT06389487). Additional studies examining safety and immunogenicity combining RSV vaccines with PCV20, influenza, COVID, or Tdap vaccines are also underway. These outcomes will be significant for future recommendations to further lower the risk of developing LRTI, hospitalization, and death among patients less than the age of 60 with chronic lung diseases.


Resources

1. Melgar M, Britton A, Roper LE, et al. Use of respiratory syncytial virus vaccines in older adults: recommendations of the Advisory Committee on Immunization Practices - United States, 2023. MMWR Morb Mortal Wkly Rep. 2023;72(29):793-801.

2. Healthcare Providers: RSV Vaccination for Adults 60 Years of Age and Over. Centers for Disease Control and Prevention. Updated March 1, 2024. https://www.cdc.gov/vaccines/vpd/rsv/hcp/older-adults.html

3. Ault KA, Hughes BL, Riley LE. Maternal Respiratory Syncytial Virus Vaccination. The American College of Obstetricians and Gynecologists. Updated December 11, 2023. https://www.acog.org/clinical/clinical-guidance/practice-advisory/articles/2023/09/maternal-respiratory-syncytial-virus-vaccination

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