• 20 Dec 2023
• Admin
• News Article

US-FDA grants priority review to Merck new BLA for V116, an Investigational, 21-valent pneumococcal conjugate vaccine specifically designed to protect adults

Merck, known as MSD outside of the United States and Canada, today announced the US Food and Drug Administration (FDA) has accepted for priority review a new Biologics License Application (BLA) for V116, the company’s investigational 21-valent pneumococcal conjugate vaccine specifically designed to help prevent invasive pneumococcal disease and pneumococcal pneumonia in adults. The FDA grants priority review to medicines and vaccines that, if approved, would provide a significant improvement in the safety or effectiveness of the treatment or prevention of a serious condition. The FDA has set a Prescription Drug User Fee Act (PDUFA), or target action date, of June 17, 2024.

“Invasive pneumococcal disease poses a greater risk to older adults or those with weakened immune systems, in part due to disease-causing serotypes not covered by currently licensed pneumococcal conjugate vaccines,” said Dr. Eliav Barr, senior vice president, head of global clinical development and chief medical officer, Merck Research Laboratories. “If approved, V116 would be the first pneumococcal conjugate vaccine specifically designed to address the serotypes that cause most adult invasive pneumococcal disease. We look forward to discussing the data that support our filing with the FDA and are working with urgency to bring this potential new preventative measure to adult patients.”

The BLA for V116 is based, in part, on data from STRIDE-3, a pivotal phase 3 trial which evaluated the immunogenicity, tolerability and safety of V116 compared to PCV20 (pneumococcal 20-valent conjugate vaccine) in adults who had not previously received a pneumococcal vaccine. Results from the STRIDE-3 trial were presented at the World Vaccine Congress West Coast in November 2023. The BLA for V116 is supported by results from multiple Phase 3 clinical studies evaluating V116 in both vaccine-naïve and vaccine-experienced adult patient populations, including STRIDE-3, STRIDE-4, STRIDE-5 and STRIDE-6. Results from additional trials will be shared with the scientific community at future congresses.

According to CDC data from 2018-2021, the serotypes covered by V116 are responsible for approximately 83% of invasive pneumococcal disease in individuals 65 years of age and older. V116 includes eight unique serotypes not covered by currently licensed pneumococcal vaccines, which were responsible for approximately 30% of invasive pneumococcal disease in individuals 65 years of age and older, based on the same CDC data.

V116 is an investigational, 21-valent pneumococcal conjugate vaccine in phase 3 development for the prevention of invasive pneumococcal disease and pneumococcal pneumonia in the adult population. V116 is specifically designed to address Streptococcus pneumoniae serotypes predominantly responsible for adult pneumococcal disease, including eight unique serotypes,15A, 15C, 16F, 23A, 23B, 24F, 31 and 35B, which account for approximately 30% of adult disease, according to CDC data from 2018-2021. The serotypes covered by V116 are responsible for approximately 83% of invasive pneumococcal disease in individuals 65 years of age and older, based on the same CDC data. V116 is designed to be administered as a single dose to help prevent invasive pneumococcal disease and pneumococcal pneumonia in adults.

The V116 phase 3 programme includes multiple studies, including STRIDE-3 (NCT05425732), STRIDE-4 (NCT05464420), STRIDE-5 (NCT05526716), STRIDE-6 (NCT05420961), STRIDE-7 (NCT05393037), STRIDE-8 (NCT05696080), STRIDE-9 (NCT05633992) and STRIDE-10 (NCT05569954).

Pneumococcal disease is an infection caused by bacteria called Streptococcus pneumoniae. There are more than 100 different types (referred to as serotypes) of pneumococcal bacteria, which can affect adults differently than children. Certain serotypes threaten to put more people at risk for invasive pneumococcal illnesses, such as bacteremia (infection in the bloodstream); bacteremic pneumonia (pneumonia with bacteremia); and meningitis (infection of the coverings of the brain and spinal cord), as well as non-invasive pneumonia (when pneumococcal disease is confined to the lungs).

While healthy adults can suffer from pneumococcal disease, patient populations particularly vulnerable to infection include older adults and those with certain chronic or immunocompromising health conditions, such as heart disease, lung disease and liver disease. Mortality from invasive pneumococcal disease is highest among adults 50 years of age and older.

Merck has been at the forefront of pneumococcal disease prevention through vaccination for more than four decades and remains committed to helping to protect people of all ages from this disease. Merck’s ongoing pneumococcal vaccine development programme is designed to provide options to address the specific needs of different populations, including infants and children, healthy adults and at-risk subgroups. This approach recognizes that disease burden in paediatric and adult populations is often driven by different bacterial strains, or serotypes, and aims to address unmet needs by offering vaccine options that target serotypes posing the greatest global risk to each population.