| Recruiting | COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise NCT07128095 | Indiana University | — |
| Not Yet Recruiting | Impact on Quality of Life and Burden of Disease in Adults With Herpes Zoster NCT06667245 | Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz | — |
| Recruiting | High vs.Standard Dose Influenza Vaccine in Pediatric Solid Organ Transplant (SOT) Recipients NCT05947071 | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 2 |
| Completed | Evaluation in Practice of the Impact of NIrsevimab on EmeRgency Use for BRONCHIOlitis NCT06185647 | Hôpital Armand Trousseau | — |
| Recruiting | Immunogenicity of Yellow Fever Vaccine 17D in Adults With Prior 17D Vaccination NCT05859490 | Oregon Health and Science University | Phase 1 / Phase 2 |
| Recruiting | Evaluation of COVID-19 Immune Barrier and Reinfection Risk NCT05774093 | Sun Yat-sen University | — |
| Completed | Community Engagement and Conditional Incentives to Accelerate Polio NCT05721274 | Aga Khan University | N/A |
| Unknown | Phase-I Study to Evaluate the Safety and Immunogenicity of a Prophylactic pDNA Vaccine Candidate Against COVID NCT05171946 | Iman Almansour | Phase 1 |
| Completed | Seasonal Influenza and Pneumococcal Vaccination in the Elderly NCT05661890 | Lokman Hekim University | — |
| Recruiting | High vs. Standard Dose Influenza Vaccine in Lung Allograft Recipients NCT05215327 | Vanderbilt University Medical Center | Phase 2 |
| Completed | VAX-MOM COVID-19: Increasing Maternal COVID-19 Vaccination NCT05570630 | University of Rochester | N/A |
| Unknown | Leading Advancements in the Uptake of Newborn Community Health NCT05111899 | University of Washington | N/A |
| Completed | Investigating COVID-19 Vaccine Immunity in Children in the Melbourne Infant Study of BCG for Allergy and Infec NCT05168709 | Murdoch Childrens Research Institute | Phase 4 |
| Completed | Hacettepe University COVID-19 Vaccinated's Health Cohort- Students of Health Sciences NCT05104385 | Hacettepe University | — |
| Completed | BNT162b2 Vaccination With 2 Doses in COVID-19 Negative Volunteers and With a Single Dose in COVID-19 Positive NCT04824638 | ANRS, Emerging Infectious Diseases | Phase 2 |
| Active Not Recruiting | High vs. Standard Dose Influenza Vaccine in Adult SOT Recipients NCT04613206 | Vanderbilt University Medical Center | Phase 2 |
| Unknown | Study to Determine the Immunization Status Among Nephrological Health Care Personnel Against SARS-CoV-2 in a S NCT04347694 | Medical University of Vienna | — |
| Unknown | Immune Cells Phenotypes During COVID-19 NCT04816760 | Institut Hospitalo-Universitaire Méditerranée Infection | — |
| Completed | Effect of Knowledge on Vaccine Take-up in Adamawa State, Northeastern Nigeria NCT04042246 | Harvard School of Public Health (HSPH) | N/A |
| Completed | Increasing Influenza and Tdap Vaccination of Pregnant Women NCT04444518 | University of Rochester | N/A |
| Unknown | Optimising the Timing of Whooping Cough Immunisation in MUMs NCT03908164 | St George's, University of London | Phase 4 |
| Terminated | Safety and Efficacy of NF135 CPS Immunization NCT03813108 | Radboud University Medical Center | N/A |
| Unknown | Mobile Phone Reminders (and Photovoice) for Routine Immunization in Nigeria - The MOPING Study NCT03402646 | Universiti Putra Malaysia | N/A |
| Completed | Immunising Mums Against Pertussis 3 NCT03578120 | St George's, University of London | — |
| Completed | A Study to Assess the Carriage of Pneumococci in Children Aged ≤8 Years, and Their Household Contacts NCT03407690 | Public Health England | — |
| Completed | Evaluation of Conditional Cash Transfers (CCTs) for Immunization NCT03355989 | Interactive Research and Development | N/A |
| Unknown | Hepatitis B Virus Vaccination in HIV-positive Patients and Individuals at High Risk for HIV Infection NCT03854630 | National Taiwan University Hospital | Phase 4 |
| Unknown | Comparison of Immunity Following IPV Versus fIPV: a Community Based Randomized Controlled Trial in Pakistan NCT03286803 | Aga Khan University | Phase 4 |
| Completed | Immunization Reminder Bracelets Study NCT03310762 | Interactive Research and Development | N/A |
| Unknown | Bioarray for the Serological Assessment of Immunity Against Vaccine-preventable Infections NCT03107312 | Jena University Hospital | — |
| Completed | Immunity to Hepatitis B Vaccine NCT03083158 | University of British Columbia | Phase 4 |
| Completed | Pertussis Immunization During Pregnancy & HIV Infection NCT03519373 | Centre Hospitalier Universitaire Saint Pierre | — |
| Completed | Phase 3 Study of BK1310 in Healthy Infants NCT02992925 | Tanabe Pharma Corporation | Phase 3 |
| Completed | Hepatitis B Birth Dose for Newborns NCT04870021 | Quaid-e-Azam University | Phase 4 |
| Completed | Immunisation History Survey - a Study to Measure Levels of Immunity to Routine Immunisations NCT03145324 | University of Oxford | — |
| Completed | Safety Study of NBP608 in Healthy Adult Volunteers NCT03121638 | SK Chemicals Co., Ltd. | Phase 1 |
| Completed | Use of SMS and Interactive Reminders to Improve Timely Immunization Coverage NCT03379467 | Interactive Research and Development | N/A |