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Breakthrough Infection

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COVID-19 Breakthrough Infection in Fully Vaccinated People and

Enrolling by invitation
  • COVID-19 Pneumonia
  • COVID-19
  • Pfizer COVID-19 mRNA vaccine
  • Moderna COVID-19 mRNA vaccine
  • Dallas, Texas
    Methodist Dallas Medical Center
May 24, 2022

COVID-19 Vaccination and Breakthrough Infections Among Persons

Completed
  • Immunocompromised
  • +5 more
  • BNT162b2 (Tozinameran)
  • New York, New York
    Pfizer Inc.
Jul 1, 2022

COVID-19, Breakthrough Infection Trial in Taoyuan city (BNT162b2, mRNA-1273, MVC-COV1901)

Active, not recruiting
  • COVID-19
  • Breakthrough Infection
  • BNT162b2
  • +2 more
  • Taoyuan city, Taiwan
    Chang Gung Memorial Hospital
Jul 21, 2022

Antibody After COVID-19 Vaccination

Completed
  • Covid19
  • +4 more
  • COVID vaccine
  • Bangkok, Thailand
    Faculty of Medicine,Vajira Hospital
Jan 10, 2022

Monitoring COVID-19 Vaccination Response in Fragile Populations

Recruiting
  • SARS CoV 2 Infection
  • +2 more
  • COVID-19 vaccination
  • Buenos Aires, Argentina
  • +21 more
Feb 25, 2022

SARS-CoV-2 Infection Among Healthcare Workers

Recruiting
  • COVID-19
  • inactivated COVID-19 vaccines; orally aerosolized Ad5-nCoV
  • Nanjing, Jiangsu, China
    The Affiliated Nanjing Drum Tower Hospital of Nanjing University
Jan 10, 2023

Breakthrough Improvement Collaborative for Ventral Mesh

Not yet recruiting
  • Rectal Prolapse
  • Learning session 1
  • +2 more
  • Leuven, Belgium
    KU Leuven
Feb 6, 2023

COVID-19 Transmission and Morbidity in Malawi

Recruiting
  • SARS CoV 2 Infection
  • SARS CoV 2 Vaccination
    • Boston, Massachusetts
    • +1 more
    Aug 6, 2023

    Febrile Neutropenia Trial in Winston-Salem (Meropenem, Micafungin)

    Not yet recruiting
    • Febrile Neutropenia
    • Winston-Salem, North Carolina
      Wake Forest University Health Sciences
    Mar 13, 2023

    Hematological Malignancy, Neutropenia Trial in Morgantown (Eravacycline)

    Not yet recruiting
    • Hematological Malignancy
    • Neutropenia
    • Morgantown, West Virginia
      Aaron Cumpston
    Sep 12, 2022

    Malaria,Falciparum, Plasmodium Falciparum, Plasmodium Berghei Trial in Nijmegen, Rotterdam (Pb(PfCS@UIS4)-infected mosquitoes,

    Completed
    Has Results
    • Malaria,Falciparum
    • +3 more
    • Pb(PfCS@UIS4)-infected mosquitoes
    • Challenge infection P. falciparum
    • Nijmegen, Gelderland, Netherlands
    • +1 more
    Feb 23, 2022

    Covid19 Trial in Assiut (covid-19 vaccines registered in Egypt)

    Not yet recruiting
    • Covid19
    • covid-19 vaccines registered in Egypt
    • Assiut, Egypt
    • +2 more
    Sep 4, 2021

    PREP (Pre-Exposure Prophylaxis) of COVID-19

    Recruiting
    • Immuno-Deficiency
    • COVID-19
    • Pittsburgh, Pennsylvania
      UPMC
    Aug 9, 2022

    COVID-19 Infection, Hematopoietic and Lymphoid Cell Tumor, Malignant Solid Tumor Trial in Seattle (Questionnaire Administration,

    Suspended
    • COVID-19 Infection
    • +2 more
    • Questionnaire Administration
    • Sotrovimab
    • Seattle, Washington
      Fred Hutch/University of Washington Cancer Consortium
    Jan 24, 2023

    Anti COVID-19 Vaccination Campaign Addressed to Employees

    Completed
    • COVID-19
    • BNT162b2 COVID-19 Vaccine
    • Roma, RM, Italy
      Fondazione Policlinico Universitario "A. Gemelli" IRCCS
    Mar 15, 2023

    Evaluation of COVID-19 Immune Barrier and Reinfection Risk

    Recruiting
    • COVID-19 Infection
    • Immunization; Infection
      • Guangzhou, Guangdong, China
        The Third Affiliated Hospital of Sun Yat-sen University
      Mar 15, 2023

      Breakthrough Improvement Collaborative for ColoRectal Cancer

      Enrolling by invitation
      • Colorectal Cancer
      • Learning session 1
      • +3 more
      • Leuven, Vlaams-brabant, Belgium
        KU Leuven
      Jan 18, 2022

      A Multi-Centre, Single-arm, Observational Study of EVUSHELD in

      Active, not recruiting
      • COVID-19
        • Qionghai, Hainan, China
          (2) Ruijin-Hainan Hospital Shanghai Jiaotong University School o
        Jun 21, 2023

        Obesity Trial in Hong Kong (Fecal Microbiota Transplantation)

        Active, not recruiting
        • Obesity
        • Fecal Microbiota Transplantation
        • Hong Kong, Hong Kong
          The Chinese University of Hong Kong
        Feb 10, 2022

        Multiple Sclerosis, Relapsing-Remitting Trial in United States (Early Aggressive Therapy or Traditional Therapy)

        Recruiting
        • Multiple Sclerosis, Relapsing-Remitting
        • Early Aggressive Therapy or Traditional Therapy
        • Birmingham, Alabama
        • +51 more
        Jan 23, 2023

        T-bet B Cells in Persistent Virus Control After Discontinuance

        Completed
        • Chronic HBV Infection
        • Drug Withdrawal
        • T-bet B cell
        • Shanghai, China
          Changhai hospital
        Sep 1, 2023

        SARS (Severe Acute Respiratory Syndrome) Trial in South Africa (To monitor the effectiveness of the single dose Ad26.COV2.S

        Completed
        • SARS (Severe Acute Respiratory Syndrome)
        • To monitor the effectiveness of the single dose Ad26.COV2.S COVID-19 vaccine
        • Mthatha, Eastern Cape, South Africa
        • +30 more
        Jul 29, 2022

        Chronic Lymphocytic Leukemia, COVID-19 Trial in Toronto (EVUSHELD)

        Not yet recruiting
        • Chronic Lymphocytic Leukemia
        • COVID-19
        • EVUSHELD
        • Toronto, Ontario, Canada
          Sunnybrook Health Sciences Cente
        Jul 18, 2022

        COVID-19 Vaccine to Assess Immunogenicity, Reactogenicity and

        Recruiting
        • COVID-19
          • Gombe, Kinshasa, Congo, The Democratic Republic of the
          • +9 more
          Dec 22, 2021

          Severe Hemophilia A Without Inhibitor Trial in Pathum Wan (Extended half-life FVIII concentrates with PK-guided dosing, standard

          Completed
          • Severe Hemophilia A Without Inhibitor
          • Extended half-life FVIII concentrates with PK-guided dosing
          • standard half-life FVIII concentrates with weight-based dosing
          • Pathum Wan, Bangkok, Thailand
            Pediatric department, Faculty of medicine, Chulalongkorn Univers
          Jul 19, 2022