Novel Drugs & Emergent Therapeutics |  Pivotal Phase 3 Randomized Clinical Trial of the Safety, Tolerability, and Immunogenicity of 20-Valent Pneumococcal Conjugate Vaccine in Adults Aged ≥18 Years
 
Published on MedED:  3 July 2023
Published in Souce journal: 23 Aug 2022
Type of article: Summary of Novel Drug Research
MedED Catalogue Reference: MIND002

Category Tabs: Vaccines | Infectious Diseases| Pneumococcal Conjugate Vaccine | Phase 3 study
Sources: Clinical Infectious Diseases

This phase 3 study evaluated the safety, tolerability, and immunogenicity of a 20-valent pneumococcal conjugate vaccine (PCV20). 
 

Adults from 3 age groups - 60 and older, 50-59, and 18-49 years-were randomized to receive either PCV20 or a 13-valent PCV (PCV13) dose. In addition, participants aged 60 years and older also received a dose of saline or a 23-valent polysaccharide vaccine (PPSV23) after one month. 


Thier findings are broadly summarised as:

  • Safety assessments showed similar local reactions and adverse events between PCV20 and PCV13, with no identified safety concerns.
  • The primary immunogenicity objectives were met, as PCV20 demonstrated non-inferior immune responses compared to PCV13 for the matched serotypes and to PPSV23 for additional serotypes in participants aged 60 years and older. 
  • Robust immune responses to all 20 vaccine serotypes were observed across age groups. 


The researches concluded that PCV20 was safe, well-tolerated, and had immunogenicity comparable to PCV13 and PPSV23. PCV20 is expected to enhance protection against pneumococcal disease in adults. 

The clinical trial registration number for this study is NCT03760146.

 

Access the original article 
 

Essink, B., Sabharwal, C., Cannon, K., Frenck, R., Lal, H., Xu, X., Sundaraiyer, V., Peng, Y., Moyer, L., Pride, M. W., Scully, I. L., Jansen, K. U., Gruber, W. C., Scott, D. A., & Watson, W. (2022). Pivotal Phase 3 Randomized Clinical Trial of the Safety, Tolerability, and Immunogenicity of 20-Valent Pneumococcal Conjugate Vaccine in Adults Aged ≥18 Years. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 75(3), 390–398. https://doi.org/10.1093/cid/ciab990

 
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