Safety and Immunogenicity of 20vPnC Coadministered With SIIV in Adults ≥65 Years of Age
Public ClinicalTrials.gov record NCT04526574. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A PHASE 3, RANDOMIZED, DOUBLE-BLIND TRIAL TO EVALUATE THE SAFETY AND IMMUNOGENICITY OF A 20-VALENT PNEUMOCOCCAL CONJUGATE VACCINE (20VPNC) WHEN COADMINISTERED WITH SEASONAL INACTIVATED INFLUENZA VACCINE (SIIV) IN ADULTS ≥65 YEARS OF AGE
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Study of the safety and immunogenicity of 20vPnC and influenza vaccine administered at the same visit or separately
Study identification
- NCT ID
- NCT04526574
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 1,796 participants
Conditions and interventions
Conditions
Interventions
- Experimental 20-valent pneumococcal conjugate vaccine (20vPnC) Biological
- Saline Other
- Influenza vaccine Biological
Biological · Other
Eligibility (public fields only)
- Age range
- 65 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 1, 2020 (Actual)
- Primary completion
- Jun 29, 2021 (Actual)
- Completion
- Jun 29, 2021 (Actual)
- Last update posted
- Jul 8, 2022
2020 – 2021
United States locations
- U.S. sites
- 63
- U.S. states
- 23
- U.S. cities
- 56
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Alliance for Multispecialty Research, LLC | Mobile | Alabama | 36608 | — |
| East Valley Gastroenterology and Hepatology Associates | Chandler | Arizona | 85224 | — |
| Hope Research Institute | Phoenix | Arizona | 85018 | — |
| Paradigm Clinical Research Center | Redding | California | 96001 | — |
| Artemis Institute for Clinical Research | San Diego | California | 92103 | — |
| California Research Foundation | San Diego | California | 92123-1881 | — |
| Diablo Clinical Research, Inc. | Walnut Creek | California | 94598 | — |
| Alliance for Multispecialty Research, LLC - Miami | Coral Gables | Florida | 33134 | — |
| Nature Coast Clinical Research | Crystal River | Florida | 34429 | — |
| Indago Research and Health Center, Inc. | Hialeah | Florida | 33012 | — |
| Jacksonville Center for Clinical Research | Jacksonville | Florida | 32216 | — |
| Suncoast Research Group, LLC | Miami | Florida | 33135 | — |
| Alpha Science Research, LLC | Miami | Florida | 33186 | — |
| Lakes Research | Miami Lakes | Florida | 33014 | — |
| Clinical Neuroscience Solutions, Inc | Orlando | Florida | 32801 | — |
| Meridian Clinical Research, LLC | Savannah | Georgia | 31406 | — |
| Clinical Research Atlanta | Stockbridge | Georgia | 30281 | — |
| Advanced Clinical Research | Meridian | Idaho | 83642 | — |
| Alliance for Multispecialty Research, LLC | El Dorado | Kansas | 67042 | — |
| Alliance for Multispecialty Research, LLC | Wichita | Kansas | 67205 | — |
| Alliance for Multispecialty Research, LLC | Wichita | Kansas | 67207 | — |
| Alliance for Multispecialty Research, LLC | New Orleans | Louisiana | 70119 | — |
| Centennial Medical Group | Elkridge | Maryland | 21075 | — |
| Meridian Clinical Research, LLC | Rockville | Maryland | 20854 | — |
| Sundance Clinical Research, LLC | St Louis | Missouri | 63141 | — |
| Meridian Clinical Research | Norfolk | Nebraska | 68701 | — |
| Meridian Clinical Research, LLC | Omaha | Nebraska | 68134 | — |
| Meridian Clinical Research, LLC | Binghamton | New York | 13901 | — |
| Meridian Clinical Research, LLC | Endwell | New York | 13760 | — |
| PMG Research of Charlotte, LLC | Charlotte | North Carolina | 28209 | — |
| PharmQuest | Greensboro | North Carolina | 27408 | — |
| PMG Research of Hickory, LLC | Hickory | North Carolina | 28601 | — |
| Accellacare - Raleigh | Raleigh | North Carolina | 27609 | — |
| M3 Wake Research, Inc. | Raleigh | North Carolina | 27612 | — |
| PMG Research of Rocky Mount, LLC | Rocky Mount | North Carolina | 27804 | — |
| PMG Research of Wilmington, LLC | Wilmington | North Carolina | 28401 | — |
| Lillestol Research LLC | Fargo | North Dakota | 58104 | — |
| CTI Clinical Research Center | Cincinnati | Ohio | 45212 | — |
| Meridian Clinical Research | Cincinnati | Ohio | 45219 | — |
| Velocity Clinical Research, Inc. | Cleveland | Ohio | 44122 | — |
| Prestige Clinical Research | Franklin | Ohio | 45005 | — |
| Lynn Health Science Institute | Oklahoma City | Oklahoma | 73112 | — |
| Omega Medical Research | Warwick | Rhode Island | 02886 | — |
| Main Street Physician's Care | Little River | South Carolina | 29566 | — |
| Coastal Carolina Research Center | North Charleston | South Carolina | 29405 | — |
| Internal Medicine and Pediatric Associates of Bristol, PC | Bristol | Tennessee | 37620 | — |
| Clinical Research Associates, Inc. | Nashville | Tennessee | 37203 | — |
| Benchmark Research | Austin | Texas | 78705 | — |
| Velocity Clinical Research, Austin | Cedar Park | Texas | 78613 | — |
| Benchmark Research | Fort Worth | Texas | 76135 | — |
| Texas Health Resource | Fort Worth | Texas | 76135 | — |
| Texas Center for Drug Development, Inc. | Houston | Texas | 77081 | — |
| Wellness Clinical Research | McKinney | Texas | 75071 | — |
| LinQ Research, LLC | Pearland | Texas | 77584 | — |
| Diagnostics Research Group | San Antonio | Texas | 78229 | — |
| Martin Diagnostic Clinic | Tomball | Texas | 77375 | — |
| J. Lewis Research Inc. / Foothill Family Clinic Draper | Draper | Utah | 84020 | — |
| J. Lewis Research, Inc. / Foothill Family Clinic | Salt Lake City | Utah | 84109 | — |
| J. Lewis Research, Inc. / Foothill Family Clinic South | Salt Lake City | Utah | 84121 | — |
| J. Lewis Research, Inc / Jordan River Family Medicine | South Jordan | Utah | 84095 | — |
| Alliance for Multispecialty Research - Norfolk | Norfolk | Virginia | 23502 | — |
| National Clinical Research, Inc | Richmond | Virginia | 23294 | — |
| Allegiance Research Specialists, LLC | Wauwatosa | Wisconsin | 53226 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04526574, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 8, 2022 · Synced Oct 17, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04526574 live on ClinicalTrials.gov.