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Clinical Trials in the USA / NCT07348692
Recruiting Phase 3

Lot-to-lot Consistency Study of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From 2 Months of Age

NCT07348692 · tracked via the Priya Life Science USA tracker
Sponsor
Sanofi
Phase
Phase 3
Started
2026-01-20
Last updated
2026-05-22

Condition(s) studied

Pneumococcal ImmunizationHealthy Volunteers

Investigational drug(s) / intervention(s)

PCV21 vaccine20vPCV licensed vaccine

PCV21 vaccine: Pharmaceutical form: Suspension for injection Route of administration: Intramuscular

20vPCV licensed vaccine: Pharmaceutical form: Suspension for injection Route of administration: Intramuscular

Study summary

This is a phase 3 randomized, modified double-blind study whose purpose is to measure whether 3 lots of the investigational pneumococcal vaccine PCV21 can help the body to develop germ-fighting agents called "antibodies" (immunogenicity) in a similar way (ie, same immune response) when they are given to infants aged from approximately 2 months (42 to 89 days) and are safe compared to a licensed 20-valent pneumococcal vaccine (20vPCV) (Prevnar 20™).

The study duration per participant will be up to approximately 17 months. The study vaccines (either PCV21 or 20vPCV) will be administered at approximately 2, 4, 6 and 12 months of age. Cohort A will include randomization to three PCV21 formulation groups or one 20vPCV comparator group (Group 1-4, approximately 896 total participants), whereas Cohort B will include randomization to three PCV21 formulation groups only (Groups 1-3, approximately 1299 total participants). Routine pediatric vaccines will be given as per local recommendations.

There will be 6 study visits: Visit (V)01, V02 separated from V01 by 60 days, V03 separated from V02 by 60 days, V04 separated from V03 by 30 days, V05 at 12 months of age, V06 separated from V05 by 30 days

Eligibility

Sex
ALL
Min age
42 Days
Max age
89 Days
Healthy volunteers
Accepted
Inclusion Criteria: * Aged 42 to 89 days on the day of inclusion * Participants who are healthy as determined by medical evaluation including medical history and physical examination * Born at full term of pregnancy (≥ 37 weeks) and with a birth weight ≥ 2.5 kg or born after a gestation period above 28 (\> 28 weeks) through 36 weeks with a birth weight ≥ 1.5 kg, and in both cases medically stable Exclusion Criteria: * Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy; or long-term systemic corticosteroid therapy * History of microbiologically confirmed Streptococcus pneumoniae infection or disease * Any contraindication to the routine pediatric vaccine being administered in the study * History of seizure or significant stable or progressive neurologic disorders such as infantile spasms, inflammatory nervous system diseases, encephalopathy, cerebral palsy * Known systemic hypersensitivity to any of the study interventions components, or history of a life-threatening reaction to the study interventions used in the study or to a product containing any of the same substances3 * Laboratory-confirmed or known thrombocytopenia, as reported by the parent(s) / legally acceptable representative (LAR(s)), contraindicating intramuscular (IM) injection. * Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating IM injection. * Chronic illness that, in the opinion of the investigator, is at a stage where it might interfere with study conduct or completion * Moderate or severe acute illness/infection (according to investigator judgment) or febrile illness (temperature ≥ 38.0°C \[≥ 100.4°F\]) on the day of study intervention administration. * Receipt of any BCG vaccine within 4 weeks preceding the first study intervention administration or planned receipt any BCG vaccine within the study period * Previous vaccination against Streptococcus pneumoniae * Previous vaccination against the following antigens: diphtheria, tetanus, pertussis, H. influenzae type b, poliovirus * Receipt of more than 1 dose of hepatitis B vaccine * Receipt of immune globulins, blood or blood-derived products since birth * Participation at the time of study enrollment (or in the 6 weeks preceding the first study intervention administration) or planned participation during the present study period in another clinical study investigating a vaccine, drug, medical device, or medical procedure Note: The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.

Primary outcome measure(s)

Trial sites (19)

FacilityCityRegionStatus
Northwest Arkansas Pediatric Clinic- Site Number : 8400039 Fayetteville Arkansas Recruiting
Matrix Clinical Research - Huntington Park- Site Number : 8400029 Huntington Park California Recruiting
Community Clinical Research- Site Number : 8400030 Los Angeles California Recruiting
Matrix Clinical Research - Los Angeles- Site Number : 8400028 Los Angeles California Recruiting
PAS Research - Tampa- Site Number : 8400034 Tampa Florida Recruiting
Kentucky Pediatric Research- Site Number : 8400036 Bardstown Kentucky Recruiting
Michigan Institute of Research- Site Number : 8400004 Allen Park Michigan Recruiting
Tribe Clinical Research At Neighbors Pediatrics- Site Number : 8400008 Charleston South Carolina Recruiting
Parkside Pediatrics - Simpsonville- Site Number : 8400005 Simpsonville South Carolina Recruiting
Tribe Clinical Research - Spartanburg- Site Number : 8400026 Spartanburg South Carolina Recruiting
PAS Research - Children's Care Clinic- Site Number : 8400035 Edinburg Texas Recruiting
Pediatric Center - Richmond- Site Number : 8400038 Richmond Texas Recruiting
Rio Clinical Trials - Canyon View- Site Number : 8400031 Ogden Utah Recruiting
Investigational Site Number : 3400001 San Pedro Sula Honduras Recruiting
Investigational Site Number : 3400002 Tegucigalpa Honduras Recruiting
Investigational Site Number : 3400003 Tegucigalpa Honduras Recruiting
Investigational Site Number : 6300005 Guayama Puerto Rico Recruiting
Investigational Site Number : 6300006 San Juan Puerto Rico Recruiting
Investigational Site Number : 6300007 Trujillo Alto Puerto Rico Recruiting

More Sanofi trials in the USA

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07348692 on ClinicalTrials.gov ↗ ← All trials in the USA