Crick
HomeTrialsGenesDrugs23andMeGraphBlogContact
  • Home
  • Trials
  • Genes
  • Drugs
  • 23andMe
  • Graph
  • Blog
  • Contact
Crick

An open-source clinical intelligence platform. Explore clinical trials, gene networks, and molecular structures using public data sources.

Data Sources

  • ClinicalTrials.gov
  • OpenTargets
  • ClinVar
  • PubChem

Links

  • Contact
  • Privacy

© 2026 Crick. All rights reserved.

Crick is for educational purposes only. Not medical advice.

Results for “Vaccine Effectiveness Against COVID-19”

Filters

Phase
Early Phase 1
Phase 1
Phase 2
Phase 3
Phase 4
Status
Recruiting
Active, Not Recruiting
Not Yet Recruiting
Completed
Enrolling by Invitation

Showing 20 of 0 results

Testing effectiveness (Phase 2)Study completedNCT05210179
What this trial is testing

Phase 2b Booster Vaccination (TURKOVAC) Against COVID-19

Who this might be right for
COVID-19Sars-CoV-2 Infection
Health Institutes of Turkey 65
Large-scale testing (Phase 3)Study completedNCT04368728
What this trial is testing

Study to Describe the Safety, Tolerability, Immunogenicity, and Efficacy of RNA Vaccine Candidates Against COVID-19 in Healthy Individuals

Who this might be right for
SARS-CoV-2 InfectionCOVID-19
BioNTech SE 46,969
Not applicableWithdrawnNCT04775056
What this trial is testing

Evaluate Vaccines Against COVID-19 in the Real World

Who this might be right for
Chronic Liver DiseaseHepatic Carcinoma
Humanity & Health Medical Group Limited
Large-scale testing (Phase 3)Study completedNCT05077176
What this trial is testing

Phase 3 Booster Vaccination Against COVID-19

Who this might be right for
COVID-19Sars-CoV-2 Infection
Health Institutes of Turkey 4,340
Large-scale testing (Phase 3)UnknownNCT04453488
What this trial is testing

Clinical Trial to Evaluate the Efficacy of RUTI® Against SARS-COV-2 Infection (COVID-19) in Healthcare Workers

Who this might be right for
Covid-19Sars-CoV2
Fundació Institut Germans Trias i Pujol 315
Testing effectiveness (Phase 2)Active Not RecruitingNCT06672055
What this trial is testing

Evaluate VXA-CoV2-3.3 COVID-19 Vaccine Against Currently Approved/Authorized mRNA COVID-19 Injectable Booster Vaccine in Adults Previously Immunized Against COVID-19 Infection

Who this might be right for
SARS-CoV2COVID-19
Vaxart 5,485
Not applicableStudy completedNCT05244330
What this trial is testing

Effectiveness of COVID-19 Vaccines Against the SARS-COV-2 Delta (B.1.617.2)

Who this might be right for
SARS CoV 2 Infection
First Affiliated Hospital Xi'an Jiaotong University 1,500
Large-scale testing (Phase 3)Study completedNCT04651790
What this trial is testing

Efficacy, Safety, and Immunogenicity of Two Vaccination Schedules of an Inactivated Vaccine Against COVID-19 in Adults

Who this might be right for
Covid19Vaccines
Pontificia Universidad Catolica de Chile 2,300
Large-scale testing (Phase 3)Ended earlyNCT04642638
What this trial is testing

Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure

Who this might be right for
Coronavirus InfectionSevere Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)COVID-19 Disease
Inovio Pharmaceuticals 1,307
Large-scale testing (Phase 3)UnknownNCT05686161
What this trial is testing

MRNA Booster Vaccine(SW-BIC-213) Compared With Pfizer andSinopharm Against Emerging VOCs

Who this might be right for
ImmunogenicitySafetyEfficacy
Stemirna Therapeutics 600
Post-approval studies (Phase 4)UnknownNCT04789356
What this trial is testing

Effectiveness of the Adsorbed Vaccine COVID-19 (Coronavac) Among Education and Public Safety Workers With Risk Factors for Severity

Who this might be right for
Covid19
Fundação de Medicina Tropical Dr. Heitor Vieira Dourado 6,233
Large-scale testing (Phase 3)UnknownNCT05580159
What this trial is testing

New Generation mRNA Booster Vaccine Against Emerging VOCs

Who this might be right for
ImmunogenicityEfficacySafety
Stemirna Therapeutics 2,000
Large-scale testing (Phase 3)WithdrawnNCT04806529
What this trial is testing

An Efficacy, Immunogenicity and Safety Study Investigating an Adjuvanted SARS-CoV-2 Influenza Vaccine to Protect Against COVID-19 in Adults Over Aged 18 Years-old and Older

Who this might be right for
Influenza
Seqirus
Testing effectiveness (Phase 2)WithdrawnNCT06997653
What this trial is testing

Efficacy, Immunogenicity, and Safety of the Inactivated COVID-19 Vaccine (TURKOVAC) in Healthy Pregnant Women

Who this might be right for
COVID-19SARS CoV 2 Infection
Health Institutes of Turkey
Large-scale testing (Phase 3)Study completedNCT05517642
What this trial is testing

IH Convidecia as Second Booster Dose Against Breakthrough Infections

Who this might be right for
COVID-19
CanSino Biologics Inc. 540
Not applicableStudy completedNCT05083039
What this trial is testing

Observational Program, Study the Preventive Efficacy of the BiVac Polio Vaccine Against the Incidence of Acute Respiratory Infections, Including COVID-19

Who this might be right for
Coronavirus InfectionsVaccinePolio
Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products 1,500
Large-scale testing (Phase 3)UnknownNCT05911087
What this trial is testing

A Phase II/III Study to Evaluate the Immunogenicity and Safety and Efficacy of SWIM816 Vaccines for SARS-CoV-2

Who this might be right for
ImmunogenicitySafety
Stemirna Therapeutics 800
Not applicableLooking for participantsNCT06168032
What this trial is testing

COVID-19 Vaccine Effectiveness Against Recurrent Infection Among Lung Cancer Patients and Biomarker Research

Who this might be right for
COVID-19 RecurrentLung CancerVaccination+3 more
Peking Union Medical College Hospital 1,224
Large-scale testing (Phase 3)UnknownNCT04564716
What this trial is testing

Clinical Trial of Efficacy, Safety, and Immunogenicity of Gam-COVID-Vac Vaccine Against COVID-19 in Belarus

Who this might be right for
Covid19
Gamaleya Research Institute of Epidemiology and Microbiology, Health Ministry of the Russian Federation 100
Large-scale testing (Phase 3)WithdrawnNCT05048940
What this trial is testing

Efficacy, Safety, and Immunogenicity of Vaccine Reimmunization With a Third Homologous Versus Heterologous Dose Against COVID-19 in Patients Undergoing Solid Organ Transplantation.

Who this might be right for
Covid19
Instituto de Investigación Marqués de Valdecilla
Next Page