| Not Yet Recruiting | Clinical Trial Phase I/IIa to Evaluate the Safety and Immunogenicity of StreptInCor NCT07078357 | University of Sao Paulo General Hospital | Phase 1 / Phase 2 |
| Not Yet Recruiting | Effect of Metabolic Modulation on a Post-acute COVID-19 Vaccination Syndrome (PACVS) Cohort NCT06967428 | Independent Medical Alliance | Phase 2 |
| Not Yet Recruiting | Immunogenicity and Safety Following In-House Recombinant Hepatitis B Vaccine in Indonesian Population (Phase I NCT05482295 | PT Bio Farma | Phase 3 |
| Not Yet Recruiting | Phase I/II, Open Label, Randomized, Safety and Immunogenicity Following DTwP-Hepatitis B-Hib-IPV Vaccine (Bio NCT06690515 | PT Bio Farma | Phase 1 / Phase 2 |
| Active Not Recruiting | Peri-conceptional or Pregnancy Exposure of Vaccination and the Risk of Adverse Pregnancy Outcomes NCT06180447 | Sun Xin | — |
| Active Not Recruiting | Immunogenicity and Safety of Recombinant Zoster Vaccine in People Living With HIV NCT05898464 | Seoul National University Hospital | Phase 4 |
| Unknown | Phase-I Study to Evaluate the Safety and Immunogenicity of a Prophylactic pDNA Vaccine Candidate Against COVID NCT05171946 | Iman Almansour | Phase 1 |
| Completed | Safety and Immunogenicity of SARS-CoV-2 Protein Subunit Recombinant Vaccine in Healthy Children NCT05546502 | PT Bio Farma | Phase 3 |
| Recruiting | Genomics and COVID-19 Vaccine Adverse Events NCT05212792 | University of British Columbia | — |
| Unknown | Evaluation of the Immunogenicity and Safety of Ad26.COV2.S's COVID-19 Vaccine NCT05409261 | ANRS, Emerging Infectious Diseases | Phase 2 |
| Unknown | Glucoside- and Rutinoside-rich Crude Material for Relieving Side Effects of COVID-19 Vaccines NCT05387252 | Taipei Medical University | N/A |
| Unknown | Evaluation of the Immunogenicity and Safety BBIBP-CorV Vaccine for COVID-19 in Adults in Guinea NCT05409300 | ANRS, Emerging Infectious Diseases | Phase 2 |
| Completed | Effectiveness, Immunogenicity and Safety of the Second Booster Dose of the Vaccine Against COVID-19 in the Eld NCT05283902 | Federal University of Espirito Santo | — |
| Unknown | National Vaccine Adverse Event Reporting Survey and Etiology NCT05095844 | Neuroganics LLC | — |
| Completed | Post Vaccination Adverse Events in Covid-19 Vaccine Recipients NCT05254977 | Islamia University of Bahawalpur | — |
| Completed | Does COVİD-19 m-RNA Vaccine Affect Fertility and Over Reserve ? NCT05489367 | Gaziosmanpasa Research and Education Hospital | — |
| Completed | Myocardial Injury After BNT162b2 mRNA COVID-19 Fourth Dose Vaccination Among Israeli Health Care Workers NCT05308680 | Shaare Zedek Medical Center | — |
| Completed | Epileptic Seizure in Epilepsy Patients After SARS-CoV-2 Vaccination NCT05341713 | Xijing Hospital | — |
| Completed | Transverse Myelitis Related to SARS-CoV-2 Vaccines NCT05178264 | University Hospital, Caen | — |
| Unknown | Evaluation of Inactivated Vaccine in Healthy Adults Against Coronavirus Disease of 2019 (COVID-19) NCT05128721 | National Research Centre, Egypt | Phase 1 |
| Unknown | Immunological Safety and Effectiveness of the First Booster Dose of mRNA Vaccines Against COVID-19 in Kidney T NCT05483725 | Institute for Clinical and Experimental Medicine | — |
| Completed | COVID19 Vaccine in SOT Adult Recipients NCT05116748 | Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico | — |
| Unknown | COVID-19 Vaccine Reactogenicity and Immunogenicity NCT05258708 | Korea University Guro Hospital | — |
| Completed | mRNA Based-Covid-19 Vaccine Effects on Blood Glucose Levels NCT04923386 | Levenson, David I., M.D. | — |
| Completed | Reactogenicity, Safety and Immunogenicity of QazCoVac-P COVID-19 Vaccine NCT04930003 | Research Institute for Biological Safety Problems | Phase 1 / Phase 2 |
| Completed | Expectations About the COVID-19 Vaccines NCT04928911 | University of Aarhus | — |
| Withdrawn | Safety and Long-term Effects of COVID-19 Vaccines in Patients With Pulmonary Tumor NCT04894682 | Guangdong Provincial People's Hospital | — |
| Completed | Study of Sputnik V COVID-19 Vaccination in Adults in Kazakhstan NCT04871841 | Karaganda Medical University | — |
| Terminated | Vaccine Observation to Include All Communities for Equitable Science NCT04770649 | Persephone Biosciences | — |
| Unknown | Evaluate the Impact, Safety, Tolerability and Immunogenicity of the Coronavac Vaccine in Kidney Transplant Rec NCT04801667 | Hospital do Rim e Hipertensão | Phase 4 |
| Unknown | Reactogenicity, Immunogenicity and Inflammatory Response by New COVID-19 Vaccine Platforms NCT05315856 | Korea University Guro Hospital | — |
| Completed | Immunization of 7 Different Vaccines Against SARS-COV-2 Across 4 Countries. NCT05228912 | Hospital Clinica Nova | — |
| Unknown | Assessment of Immune Response After Vaccination Against COVID-19 in Patients Treated With Renal Replacement Th NCT04905862 | Medical University of Gdansk | — |
| Completed | Adverse Events Report of Inactivated COVID-19 Vaccine NCT05026879 | Bozyaka Training and Research Hospital | — |
| Completed | Safety and Immunogenicity of Oxford AstraZeneca Vaccine Against COVID-19 Infection NCT04756271 | Zagazig University | Phase 3 |
| Completed | COVID-19 Vaccine and Ovarian Reserve NCT04748172 | Sheba Medical Center | — |
| Unknown | Quantification of Binding and Neutralizing Antibody Levels in COVID-19 Vaccinated Health Care Workers Over 1 Y NCT04910971 | LifeBridge Health | — |
| Unknown | Oral Side Effects of COVID-19 Vaccine NCT04706156 | Masaryk University | — |
| Completed | COVID-19 Vaccines Associated Malaise NCT05234333 | University Hospital, Caen | — |
| Completed | Anti-COVID-19 Vaccine Side Effects NCT05735769 | University of Bari | — |
| Completed | Immunogenicity, Efficacy and Safety of QazCovid-in® COVID-19 Vaccine NCT04691908 | Research Institute for Biological Safety Problems | Phase 3 |
| Completed | Reactogenicity, Safety and Immunogenicity of QazCovid-in® COVID-19 Vaccine NCT04530357 | Research Institute for Biological Safety Problems | Phase 1 / Phase 2 |
| Active Not Recruiting | Effectiveness and Tolerability of Influenza Vaccine in Patients at Risk for Severe and Complicated Influenza NCT06286488 | Medical University of Warsaw | Phase 4 |
| Completed | A Trial Investigating the Safety and Effects of Four BNT162 Vaccines Against COVID-19 in Healthy and Immunocom NCT04380701 | BioNTech SE | Phase 1 / Phase 2 |
| Completed | Effectiveness of CARD for Improving School-Based Immunizations NCT03966391 | University of Toronto | N/A |
| Terminated | Improving the School Vaccination Experience: What CARDs Are You Going to Play? NCT03966300 | University of Toronto | N/A |
| Unknown | Reactogenicity, Safety and Immunogenicity of a LAIV А/17/Hong Kong/2017/75108 H7N9 Influenza Vaccine NCT03739229 | Research Institute of Influenza, Russia | Phase 1 |
| Completed | Safety of LAIV4 in Children With Asthma NCT03600428 | Vanderbilt University Medical Center | Phase 4 |
| Completed | Comparing Morbidity and Mortality Effects of Two Different Strains of BCG NCT03400878 | Bandim Health Project | Phase 4 |