Prevnar 20 vaccine clinical trials
Prevnar 20 vaccine is named as an intervention in 3 current clinical trials in our USA, Mexico, South Korea, Australia and Turkey registers. None are recruiting at the moment. All registered phases are Phase 3. The sponsor with the most trials is Sanofi (2). The most-studied condition is Pneumococcal Immunization.
Patient leaflets for Prevnar 20 vaccine
The package leaflet is the official guide for patients that comes with every medicine. These links go to the regulators that publish it.
- UKUnited Kingdom: Search MHRA ProductsPatient information leaflets and SmPCs for UK-licensed products.
- USUnited States: Search DailyMedFDA-approved labels, including patient and medication guides.
Leaflets differ between brands and countries; always read the one that comes with your own medicine. This is regulatory information, not medical advice.
Trials by status
Trials by phase
Clinical trials of Prevnar 20 vaccine
3 trials| Study | Phase | Status | Lead sponsor | Registers |
|---|---|---|---|---|
|
Study of a 4-Dose Regimen of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age
NCT06736041 · ClinicalTrials.gov ↗ · Pneumococcal Immunization
|
Phase 3 | Active, closed | Sanofi Pasteur, a Sanofi Company | USA, Mexico, South Korea, Australia |
|
Study of Mixed Vaccination Schedules With a 21-valent Pneumococcal Conjugate Vaccine and a 20-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age
NCT06824181 · Pneumococcal Immunization
|
Phase 3 | Active, closed | Sanofi | USA, Mexico |
|
Study of the Safety of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From Approximately 2 Months of Age
NCT06824194 · Pneumococcal Immunization
|
Phase 3 | Active, closed | Sanofi | USA, Turkey, Mexico |
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
Conditions studied with Prevnar 20 vaccine
1 conditionSponsors
lead sponsor per trial| Lead sponsor | Trials |
|---|---|
| Sanofi | 2 |
| Sanofi Pasteur, a Sanofi Company | 1 |
By country register
| Register | Trials | Recruiting |
|---|---|---|
| Clinical trials in USA | 3 | 0 |
| Clinical trials in Mexico | 3 | 0 |
| Clinical trials in South Korea | 1 | 0 |
| Clinical trials in Australia | 1 | 0 |
| Clinical trials in Turkey | 1 | 0 |
A trial with sites in more than one country appears in each of those registers.
Related compounds
Questions about Prevnar 20 vaccine trials
How many clinical trials are testing Prevnar 20 vaccine?
3 current trials in our USA, Mexico, South Korea, Australia and Turkey registers name Prevnar 20 vaccine (also registered as Prevnar20) as a drug or biological intervention, as of the registry sync on 9 November 2026. Completed and withdrawn studies are not counted.
Are Prevnar 20 vaccine trials recruiting patients?
Not at the moment. None of the 3 trials in our registers is recruiting; they are active but closed to enrolment, not yet open, or enrolling by invitation. Only the study team can confirm whether a patient is eligible.
Who sponsors Prevnar 20 vaccine clinical trials?
Sanofi (2) and Sanofi Pasteur, a Sanofi Company (1). The number in brackets is how many trials each organisation leads.
Where does this information come from?
Every trial, status, phase and sponsor on this page is copied from public ClinicalTrials.gov records by a daily sync. Nothing here describes how Prevnar 20 vaccine works or whether it is effective, and it is not medical advice.
How this page is built
Everything on this page is copied from public ClinicalTrials.gov registry records — it is not written from memory, and nothing here describes how Prevnar 20 vaccine works or whether it is effective. Each trial links to its own record so you can check it yourself.
- ClinicalTrials.gov (U.S. National Library of Medicine) ↗ Trial IDs, titles, intervention names and synonyms, phase, overall status, lead sponsor and conditions for every trial on this page
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Prevnar 20 vaccine (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 9 Nov 2026. How every register is built: methodology · fixes we have made: corrections log.