A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 When Administered Concomitantly With Influenza Vaccine in Healthy Adults 50 Years of Age or Older (V114-021/PNEU-FLU)

Inclusion Criteria

• In good health. Any underlying chronic illness must be documented to be in stable condition.
• A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least 1 of the following conditions applies: a) not a woman of childbearing potential (WOCBP) OR b) a WOCBP who agrees to use 1 of the contraceptive methods as defined in the protocol during the treatment period and for at least 6 weeks after the last dose of study intervention.

Exclusion Criteria

• History of invasive pneumococcal disease (IPD, positive blood culture, positive cerebrospinal fluid culture, or positive culture at another sterile site) or known history of other culture-positive pneumococcal disease within 3 years before Visit 1 (Day 1)
• Known hypersensitivity to any component of pneumococcal polysaccharide vaccine, pneumococcal conjugate vaccine (PCV), or any diphtheria toxoid-containing vaccine
• Known hypersensitivity to any component of influenza vaccines, including egg protein, or following a previous dose of any influenza vaccine.
• Known or suspected impairment of immunological function
• Experienced Guillain-Barré syndrome within 6 weeks of receiving a previous influenza vaccination
• Coagulation disorder contraindicating intramuscular vaccinations.
• History of malignancy ≤5 years prior to signing informed consent, except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer
• A WOCBP who has a positive urine or serum pregnancy test before the first vaccination at Visit 1 (Day 1)
• Prior administration of any PCV (e.g., Prevnar 13®) or is expected to receive any pneumococcal vaccine during the study outside of the protocol.
• Prior administration of PNEUMOVAX®23 ≤12 months before Visit 1 (Note: individuals who received PNEUMOVAX®23 >12 months prior to Visit 1 are eligible for this study.)
• Previous receipt of influenza vaccine during the 2018/2019 flu season or expected to receive any influenza vaccine during the study outside of the protocol
• Received systemic corticosteroids (≥20 mg/day prednisone equivalent) for ≥14 consecutive days and has not completed intervention at least 30 days before study entry.
• Received systemic corticosteroids exceeding physiologic replacement doses (approximately 5 mg/day prednisone equivalent) within 14 days before vaccination (Note: Topical, ophthalmic, intra-articular or soft-tissue [e.g., bursa, tendon steroid injections], and inhaled/nebulized steroids are permitted).
• Receiving immunosuppressive therapy, including chemotherapeutic agents used to treat cancer or other conditions, and interventions associated with organ or bone marrow transplantation, or autoimmune disease
• Received a blood transfusion or blood products, including immunoglobulin within the 6 months before receipt of study vaccine or is scheduled to receive a blood transfusion or blood product within 30 days of receipt of study vaccine. Autologous blood transfusions are not considered an exclusion criterion.
• Is currently participating in or has participated in an interventional clinical study with an investigational compound or device within 2 months of participating in this current study.
• Is a user of recreational or illicit drugs or has had a recent history (within the last year) of drug or alcohol abuse or dependence as assessed by the study investigator.
• Is or has an immediate family member (e.g., spouse, parent/legal guardian, sibling, or child) who is investigational site or Sponsor staff directly involved with this study.