Not applicableStudy completedNCT05422898What this trial is testingDiscussing COVID-19 Vaccines in Private Facebook GroupsWho this might be right forCOVID-19 George Washington University 508
Large-scale testing (Phase 3)Ended earlyNCT05012787What this trial is testingSafety and Immunogenicity of Adjuvanted SARS-CoV-2 (SCB-2019) Vaccine in Adults With Chronic Immune-Mediated DiseasesWho this might be right forCOVID-19 Clover Biopharmaceuticals AUS Pty 1
Not applicableStudy completedNCT05313087What this trial is testingCOVID-19 Vaccine Response in Chronic Respiratory ConditionsWho this might be right forSARS-CoV Infection National Jewish Health 360
Not applicableStudy completedNCT04732819What this trial is testingImproving COVID-19 Vaccine Uptake in Nursing HomesWho this might be right forCOVID-19 Vaccines Brown University 23,768
Testing effectiveness (Phase 2)Looking for participantsNCT06255626What this trial is testingSafety and Immunogenicity of a Sub-unit Protein CD40.RBDv Bivalent COVID-19 Vaccine, Adjuvanted or Not, as a Booster in Volunteers.Who this might be right forCOVID-19 ANRS, Emerging Infectious Diseases 215
Not applicableStudy completedNCT05950243What this trial is testingCOVID-19 Disease & Vaccine Survey in AfricaWho this might be right forCOVID-19Vaccine Hesitancy Salem Anaesthesia Pain Clinic 1,000
Testing effectiveness (Phase 2)Study completedNCT04979949What this trial is testingBooster Vaccination Against COVID-19Who this might be right forCOVID-19Sars-CoV-2 Infection Health Institutes of Turkey 222
Not applicableEnded earlyNCT04930055What this trial is testingImmune Responses in Oncology Patients to Novel Coronavirus Vaccines (IROC)Who this might be right forCancer Indiana University 2,206
Not applicableStudy completedNCT05574985What this trial is testingRecombinant Omicron-Delta COVID-19 Vaccine (CHO Cell)Who this might be right forCOVID-19 Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. 272
Not applicableStudy completedNCT04854408What this trial is testingEvaluation of the Effect of Coronavac Vaccine (Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2 Vaccine) on Healthcare Workers' Menstrual PatternsWho this might be right forCovid19Vaccine ReactionCoronavirus+2 more Kanuni Sultan Suleyman Training and Research Hospital 300
Testing effectiveness (Phase 2)Study completedNCT04822025What this trial is testingEvaluate MVC-COV1901 Vaccine Against COVID-19 in Elderly AdultsWho this might be right forCovid19 Vaccine Medigen Vaccine Biologics Corp. 420
Not applicableStudy completedNCT04756817What this trial is testingImmunogenicity of the BNT162b2 Covid-19 Vaccine in Elderly People Aged 85 and Older in GreeceWho this might be right forImmunogenicity, Vaccine G.Gennimatas General Hospital 297
Testing effectiveness (Phase 2)Study completedNCT04863131What this trial is testingSafety and Immunogenicity of EXG-5003Who this might be right forCOVID-19 Fujita Health University 40
Testing effectiveness (Phase 2)Ended earlyNCT05520970What this trial is testingSafety and Immunogenicity of COVID-19 Vaccine, AdCLD-CoV19-1Who this might be right forCOVID-19Vaccines Cellid Co., Ltd. 4
Testing effectiveness (Phase 2)UnknownNCT06113731What this trial is testingA PhaseⅡ Study to Evaluate the Safety and Immunogenicity of COVID-19 VaccineWho this might be right forSARS-CoV-2 Infection CNBG-Virogin Biotech (Shanghai) Ltd. 980
Early research (Phase 1)WithdrawnNCT05366296What this trial is testingSafety, Reactogenicity, and Immunogenicity Study of a Lyophilized COVID-19 mRNA VaccineWho this might be right forCOVID-19 Pandemic Wuhan Recogen Biotechnology Co., Ltd.
Not applicableActive Not RecruitingNCT04924803What this trial is testingCommunity Developed Technology-Based Messaging to Increase COVID-19 Vaccine Uptake Among People Who Inject DrugsWho this might be right forCovid19 NDRI-USA, Inc. 545
Post-approval studies (Phase 4)Study completedNCT05343871What this trial is testingImmunogenicity and Safety of Fractional Booster Dose of COVID-19 Vaccines Available for Use in Pakistan/Brazil: A Phase 4 Dose-optimizing TrialWho this might be right forCOVID-19 Albert B. Sabin Vaccine Institute 2,354
Large-scale testing (Phase 3)Active Not RecruitingNCT05507671What this trial is testingThe Role of BCG Vaccine in the Clinical Evolution of COVID-19 and in the Efficacy of Anti-SARS-CoV-2 VaccinesWho this might be right forCOVID-19 Oswaldo Cruz Foundation 556
Not applicableStudy completedNCT05499299What this trial is testingVolatility and Heterogeneity of Vaccine Sentiments Means Continuous Monitoring is Needed When Measuring Message EffectivenessWho this might be right forVaccine-Preventable DiseasesVaccine Refusal The University of Hong Kong 127,000