| Recruiting | Prospective Clinical Evaluation of the BioFire Emerging Coronavirus Panel for the Detection of COVID-19 and Ot NCT07221097 | BioFire Defense LLC | — |
| Not Yet Recruiting | Next Generation T-cell Vaccine Against Coronavirus Disease (COVID-19) NCT05633446 | Gylden Pharma Ltd | Phase 1 / Phase 2 |
| Recruiting | Evaluation of Concordance Between Exhaled Air Test (eBAM-CoV) and RT-PCR to Detect SARS-CoV-2 NCT06099795 | Centre Hospitalier Universitaire de Nīmes | N/A |
| Completed | First-in-human Study to Evaluate the Safety and Immunogenicity of Three Dose Levels of the OVX033 Coronavirus NCT06128382 | Osivax | Phase 1 |
| Recruiting | Observational Digital Biomarker Discovery in Respiratory Virus Challenge Studies NCT04772170 | National Institute of Allergy and Infectious Diseases (NIAID) | — |
| Unknown | Clinical Study of Omicron BA.4/5-Delta Strain Recombinant Novel Coronavirus Protein Vaccine (CHO Cells) NCT06025812 | Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. | N/A |
| Recruiting | Impact of Aerosol Box Use During Cardiopulmonary Arrest: A Multicenter Study NCT05868239 | KidSIM Simulation Program | N/A |
| Withdrawn | COVID-2019 Testing and Vaccination Among African American and Latinx Public Housing Residents NCT04542395 | Charles Drew University of Medicine and Science | N/A |
| Completed | Omicron BA.4/5-Delta Strain Recombinant Novel Coronavirus Protein Vaccine (CHO Cells) NCT05850507 | Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. | N/A |
| Unknown | Should Palatine Tonsils be Included in the Oropharyngeal Swab for SARS-CoV-2 Molecular Testing? NCT05611203 | Rigshospitalet, Denmark | N/A |
| Unknown | Lianhua Qingwen for the Rehabilitation of Patient With Coronavirus Infection NCT05625035 | Qilu Hospital of Shandong University | Phase 4 |
| Unknown | Lianhua Qingke for the Rehabilitation of Patient With Omicron Infection NCT05625022 | Qilu Hospital of Shandong University | Phase 4 |
| Completed | Wear Your Mask, Wash Your Hands, Don't Get COVID-19 NCT05572840 | Bartın Unıversity | N/A |
| Unknown | Tropism and Pathogenesis of Influenza Virus and Coronavirus in Human Brain Explant Culture NCT05375006 | Chinese University of Hong Kong | — |
| Completed | The Effect of Video Information on Anxiety in Adolescents Having rRT-PCR Test During Corona Virus Pandemic NCT05265390 | Mersin University | N/A |
| Completed | A Phase-I Study of a Nanoparticle-based Peptide Vaccine Against SARS-CoV-2 NCT05113862 | Gylden Pharma Ltd | Phase 1 |
| Unknown | Angiotensin-(1,7) Treatment in COVID-19: the ATCO Trial NCT04332666 | Erasme University Hospital | Phase 2 / Phase 3 |
| Unknown | SPI-1005 Treatment in Moderate COVID-19 Patients NCT04484025 | Sound Pharmaceuticals, Incorporated | Phase 2 |
| Withdrawn | A Study to Evaluate the Immunogenicity and Safety of the SARS-CoV-2 mRNA Vaccine CVnCoV in Elderly Adults Comp NCT04838847 | CureVac | Phase 3 |
| Unknown | Association of Inspiratory Muscle Training With HD-tDCS for Assistance to Patients With Long Covid-19 NCT05359770 | Suellen Marinho Andrade | N/A |
| Unknown | Protocol for Assistance to Patients With Long Covid-19 Undergoing Treatment With HD-tDCS NCT05289115 | Federal University of Paraíba | N/A |
| Completed | A Study to Evaluate Safety, Tolerability, and Reactogenicity of an RBD-Fc-based Vaccine to Prevent COVID-19 NCT04953078 | Baiya Phytopharm Co., Ltd. | Phase 1 |
| Completed | Increasing Vaccine Uptake in Underresourced Public Housing Areas NCT04779138 | Charles Drew University of Medicine and Science | N/A |
| Unknown | SPI-1005 Treatment in Severe COVID-19 Patients NCT04483973 | Sound Pharmaceuticals, Incorporated | Phase 2 |
| Completed | Recombinant New Coronavirus Vaccine (CHO Cells) to Prevent SARS-CoV-2（COVID-19） Phase I Clinical Trial (3~17 Y NCT04961359 | Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. | Phase 1 |
| Unknown | Protocol of Assistance to Patients With Covid-19 Submitted to Treatment With HD-tDCS NCT04844554 | Federal University of Paraíba | N/A |
| Completed | Impact of Aerosol Box Use on Healthcare Provider Contamination NCT04880668 | KidSIM Simulation Program | N/A |
| Completed | COVID-19 Risk Reduction Among African American Parishioners NCT04542343 | Charles Drew University of Medicine and Science | N/A |
| Unknown | Jing-Si-Herbal-Tea Accelerates SARS-Cov-2 Load Reduction Among COVID-19 Patients NCT04967755 | Yao-Kuang Wu | N/A |
| Unknown | COV-CHIM01: SARS-CoV-2 (COVID-19) Dose Finding Infection Study NCT04864548 | University of Oxford | Phase 1 |
| Completed | Efficacy of Mouthwashes in Reducing Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Viral Load in NCT04723446 | Queen Mary University of London | N/A |
| Terminated | COVID-19: A Study to Evaluate Safety, Reactogenicity and Immunogenicity of the SARS-CoV-2 mRNA Vaccine CVnCoV NCT04860258 | CureVac | Phase 3 |
| Completed | Follow-up of Covid-19 Long Term Sequelae NCT05097677 | Azienda Ospedaliera Universitaria Integrata Verona | — |
| Completed | Efficacy of an Asynchronous Telerehabilitation Programme in Post-COVID-19 Patient NCT04794036 | Universidad San Jorge | N/A |
| Completed | Cyclo-Ergometry in the Patient With Acute Respiratory Distress Syndrome NCT06226428 | Biogipuzkoa Health Research Institute | N/A |
| Completed | A Study of Intranasal ChAdOx1 nCOV-19 NCT04816019 | University of Oxford | Phase 1 |
| Terminated | NOWDx Test for the Detection of Antibodies to COVID-19 in Lay Persons NCT04799392 | NOWDiagnostics, Inc. | N/A |
| Completed | Exercise Therapy in Cancer Patients Who Are Recovering From COVID-19 NCT04824443 | Memorial Sloan Kettering Cancer Center | Phase 1 |
| Completed | Investigation of the Characteristics of Chronic Pain Developing After COVID-19 NCT04883216 | Istanbul University | — |
| Completed | Evaluation of the Effect of Coronavac Vaccine (Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2 Vac NCT04854408 | Kanuni Sultan Suleyman Training and Research Hospital | — |
| Completed | SARS-CoV-2 Human Challenge Characterisation Study NCT04865237 | Imperial College London | N/A |
| Completed | Safety, Testing/Transmission, and Outcomes in Pregnancies With COVID-19 NCT04718220 | Washington University School of Medicine | N/A |
| Completed | Exploring Vaccine Confidence and Uptake of Potential COVID-19 Vaccines NCT04731870 | East Carolina University | — |
| Completed | Antibody Detection of Vaccine-Induced Secretory Effects NCT04895475 | Children's Hospital Medical Center, Cincinnati | — |
| Withdrawn | A Study to Evaluate the Safety, Immunogenicity, and Efficacy of UB-612 COVID-19 Vaccine NCT04683224 | Vaxxinity, Inc. | Phase 2 / Phase 3 |
| Unknown | When Distance is an Act of Love: Exploring the Use of Video Diaries for Family Members of Intensive Care Patie NCT04870450 | University of Edinburgh | — |
| Terminated | Steam Inhalations in COVID-19 Patients NCT04743349 | Meyer Children's Hospital IRCCS | N/A |
| Completed | COVID-19: SARS-CoV-2 Detection in Saliva, Oropharyngeal and Nasopharyngeal Specimens NCT04715607 | Rigshospitalet, Denmark | N/A |
| Unknown | MGUS, SMM, and MM Patient Experience With Coronavirus 19 (COVID-19) Survey NCT04727294 | HealthTree Foundation | — |
| Terminated | Silmitasertib (CX-4945) in Patients With Severe Coronavirus Disease 2019 (COVID-19) NCT04668209 | University of Arizona | Phase 2 |
| Withdrawn | Performance Evaluation of SARS-COV-2 (Covid-19) Antigen Rapid Test NCT04808921 | Sky Medical Supplies & Equipments, LLC | N/A |
| Completed | COVID-19 Testing Pilot Study NCT04843878 | University of Pennsylvania | — |
| Completed | The Efficacy of Pre-procedural Mouth Rinses on COVID-19 Saliva Viral Load NCT04721457 | King Abdulaziz University | Phase 4 |
| Completed | A Study to Evaluate the Safety and Immunogenicity of Vaccine CVnCoV in Healthy Adults in Germany for COVID-19 NCT04674189 | CureVac | Phase 3 |
| Completed | Umbilical Cord Lining Stem Cells (ULSC) in Patients With COVID-19 ARDS NCT04494386 | Restem, LLC. | Phase 1 / Phase 2 |
| Completed | Fluvoxamine for Early Treatment of Covid-19 (Stop Covid 2) NCT04668950 | Washington University School of Medicine | Phase 3 |
| Completed | High Dose Vitamin-D Substitution in Patients With COVID-19: a Randomized Controlled, Multi Center Study NCT04525820 | Prof. Dr. Jörg Leuppi | N/A |
| Unknown | Exercise Influence on COVID-19 NCT04624048 | University of Salamanca | — |
| Completed | NeuroCovid Rehab and Recovery Related to COVID-19 Diagnosis NCT04638673 | Medical University of South Carolina | Phase 2 |
| Completed | N-Acetyl Glucosamine as Therapeutic Intervention for Coronavirus Disease-19 (COVID-19) NCT04706416 | Quantinosis.ai LLC | Phase 1 |
| Completed | Safety and Efficacy of Rayaldee for Treating Mild to Moderate COVID-19 NCT04551911 | OPKO Health, Inc. | Phase 2 |
| Withdrawn | A Study to Evaluate the Efficacy and Safety of Itolizumab in Subjects Hospitalized With COVID-19 NCT04605926 | Equillium | Phase 3 |
| Completed | Best Practices to Prevent COVID-19 Illness in Staff and People With Serious Mental Illness and Developmental D NCT04726371 | Massachusetts General Hospital | N/A |
| Completed | At Home Monitoring for Patients With Covid19 NCT04453774 | University Health Network, Toronto | N/A |
| Completed | UVA Light Device to Treat COVID-19 NCT04572399 | Cedars-Sinai Medical Center | N/A |
| Unknown | Treatment of Patients With Mild Coronavirus-19 (COVID-19) Disease With Methotrexate Associated to LDL Like Nan NCT04610567 | University of Sao Paulo General Hospital | Phase 1 / Phase 2 |
| Completed | COG-UK Project Hospital-Onset COVID-19 Infections Study NCT04405934 | University College, London | N/A |
| Terminated | Coronavirus Induced Acute Kidney Injury: Prevention Using Urine Alkalinization NCT04530448 | West Virginia University | Phase 4 |
| Completed | Inflammatory Signal Inhibitors for COVID-19 (MATIS) NCT04581954 | Imperial College London | Phase 1 / Phase 2 |
| Terminated | Efficacy and Safety of Dipeptidyl Peptidase-4 Inhibitors in Diabetic Patients With Established COVID-19 NCT04371978 | Rabin Medical Center | Phase 3 |
| Completed | imPulse™ Una Full-spectrum, Over Clothing E-stethoscope NCT04556149 | Level 42 AI, Inc. | — |
| Completed | Lung Ultrasound Findings in Patients With COVID-19 in a UK ED NCT05065827 | Chelsea and Westminster NHS Foundation Trust | — |
| Completed | A Dose-Confirmation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healt NCT04515147 | CureVac | Phase 2 |
| Completed | Prone Position Improves End-Expiratory Lung Volumes in COVID-19 Acute Respiratory Distress Syndrome NCT04818164 | Istanbul University - Cerrahpasa | — |
| Completed | NOWDx Test for the Detection of Antibodies to COVID-19 NCT04690413 | NOWDiagnostics, Inc. | N/A |
| Unknown | Evaluation of a Synbiotic Formula in Patient With COVID-19 NCT04730284 | Chinese University of Hong Kong | N/A |
| Unknown | Recombinant New Coronavirus Vaccine (CHO Cells) to Prevent SARS-CoV-2 Phase I Clinical Trial (≥60 Years Old) NCT04550351 | Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. | Phase 1 |
| Completed | ACTIV-2: A Study for Outpatients With COVID-19 NCT04518410 | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 2 / Phase 3 |
| Terminated | Serology to COVID-19 for Recording Exposures and Evaluating Needs NCT04566965 | Children's Hospital Medical Center, Cincinnati | — |
| Completed | Telerehabilitation for Patients Diagnosed With Coronavirus NCT04346927 | Yasemin Çırak | N/A |
| Completed | Convalescent Plasma for Patients With COVID-19: A Randomized, Single Blinded, Parallel, Controlled Clinical St NCT04332835 | Universidad del Rosario | Phase 2 / Phase 3 |
| Completed | The Usability, Feasibility, and Tolerability of Virtual Reality for Rehabilitation From COVID-19 NCT04505761 | Radboud University Medical Center | N/A |
| Unknown | Evaluation of Clinical Characteristics and Outcome of COVID19 Pneumonia in Assiut University Hospital NCT04481360 | Assiut University | — |
| Unknown | Can Remote Photoplethysmography Be Used for Contactless Vital Sign Acquisition in a Healthcare Setting? A Pros NCT04489407 | Lady Davis Institute | N/A |
| Unknown | Tocilizumab in Coronavirus-19 Positive Patients NCT04423042 | University of Calgary | Phase 3 |
| Completed | Remote Monitoring Use In Cases Of Suspected COVID-19 (Coronavirus) NCT04337489 | Imperial College London | — |
| Terminated | Pemziviptadil (PB1046), a Long-acting, Sustained Release Human VIP Analogue, Intended to Provide Clinical Impr NCT04433546 | PhaseBio Pharmaceuticals Inc. | Phase 2 |
| Unknown | Clinical Study of Recombinant Novel Coronavirus Vaccine NCT04466085 | Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. | Phase 2 |
| Terminated | A Study to Assess Pulsed Inhaled Nitric Oxide vs Placebo in Subjects With Mild or Moderate COVID-19 NCT04421508 | Bellerophon Pulse Technologies | Phase 3 |
| Terminated | A Study to Evaluate Efficacy and Safety of PTC299 (Emvododstat) in Hospitalized Participants With Coronavirus NCT04439071 | PTC Therapeutics | Phase 2 / Phase 3 |
| Completed | Lung Ultrasound Changes in Covid 19 Patients Discharged From Hospital NCT05062603 | Chelsea and Westminster NHS Foundation Trust | — |
| Completed | Self-sampling for the Study of COVID-19 NCT04447495 | Medical College of Wisconsin | — |
| Unknown | Mental Health Status and Related Factors Among Physical Medicine & Rehabilitation Physicians in the Covid-19 P NCT04500652 | Dokuz Eylul University | — |
| Unknown | COVID-19 Vaccine (ChAdOx1 nCoV-19) Trial in South African Adults With and Without HIV-infection NCT04444674 | University of Oxford | Phase 1 / Phase 2 |
| Completed | Migrant Workers' Responses to the COVID-19 Pandemic NCT04718519 | Yale-NUS College | — |
| Unknown | Phase I Clinical Study of Recombinant Novel Coronavirus Vaccine NCT04445194 | Anhui Zhifei Longcom Biologic Pharmacy Co., Ltd. | Phase 1 |
| Completed | A Study of Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection NCT04335084 | ProgenaBiome | Phase 2 |
| Unknown | PHenotyping patiENts Admitted to Hospital With cOvid-19 Infection and idenTifYing Prognostic markErs NCT04459351 | Chelsea and Westminster NHS Foundation Trust | — |
| Completed | A Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVI NCT04449276 | CureVac | Phase 1 |
| Completed | Convalescent Plasma to Stem Coronavirus (CSSC-001) NCT04323800 | Johns Hopkins University | Phase 2 |
| Completed | External Dead Space in Ventilated COVID-19 Patients NCT04424082 | Karolinska Institutet | N/A |
| Unknown | QuadraMune(TM) for Prevention of COVID-19 NCT04421391 | Therapeutic Solutions International | N/A |
| Completed | Effects of Early Use of Nitazoxanide in Patients With COVID-19 NCT04552483 | Universidade Federal do Rio de Janeiro | Phase 2 |
| Completed | COVID-19 Infection and Transmission in Exposed, Confined and Community-based Infants NCT04413968 | Assistance Publique - Hôpitaux de Paris | N/A |
| Unknown | A Study of a Candidate COVID-19 Vaccine (COV003) NCT04536051 | University of Oxford | Phase 3 |
| Unknown | COVID-19: Laser Interferometry for Rapid Single Coronavirus Detection NCT04401644 | Somerset NHS Foundation Trust | N/A |
| Unknown | Trial of Alpha One Antitrypsin Inhalation in Treating Patient With Severe Acute Respiratory Syndrome Coronavir NCT04385836 | Ministry of Health, Saudi Arabia | EARLY_Phase 1 |
| Terminated | A Phase 2 Study to Evaluate Axatilimab for Hospitalized Participants With Respiratory Involvement Secondary to NCT04415073 | Syndax Pharmaceuticals | Phase 2 |
| Completed | COVID 19 : Seroprevalence Study of Anti SRAS-CoV-2 Antibodies in GHT Employees in Haute Bretagne (AntiCoV-HB) NCT04416308 | Rennes University Hospital | N/A |
| Completed | The COVID-19 Disease and CARdiac Events Study NCT04438993 | NHS Lanarkshire | — |
| Completed | A Study of APL-9 in Adults With Mild to Moderate ARDS Due to COVID-19 NCT04402060 | Apellis Pharmaceuticals, Inc. | Phase 1 / Phase 2 |
| Completed | Investigating a Vaccine Against COVID-19 NCT04400838 | University of Oxford | Phase 2 / Phase 3 |
| Completed | The CASCADE Study - Measures of Complement Activation and Inflammation in Patients With Covid-19 NCT04453527 | Portsmouth Hospitals NHS Trust | — |
| Completed | Clinical and Psycho-social Impact of COVID-19 Related Confinement on Patients With Digestive Tumors NCT04389684 | Poitiers University Hospital | — |
| Unknown | Artificial Intelligence-assisted Diagnosis and Prognostication in COVID-19 Using Electrocardiograms NCT04510441 | Imperial College London | — |
| Withdrawn | LIBERATE Trial in COVID-19 NCT04334629 | King's College London | Phase 4 |
| Completed | Cardiac COVID-19 Health Care Workers NCT04413071 | AORTICA Group | — |
| Completed | The Impact of COVID-19 Outbreak on Trans-population's Health in Italy NCT04448418 | Unita Complessa di Ostetricia e Ginecologia | — |
| Completed | Health and Wellbeing of Pregnant and Post-Partum Women During the COVID-19 Pandemic NCT04385238 | Pregistry | — |
| Completed | Patients Perspectives on Discontinuation of Their Fertility Treatment Due to the COVID-19 Pandemic NCT04396210 | University Hospital, Ghent | — |
| Unknown | Natural Killer Cell (CYNK-001) Infusions in Adults With COVID-19 NCT04365101 | Celularity Incorporated | Phase 1 / Phase 2 |
| Completed | COVID-19 Health Messaging to Underserved Communities NCT04371419 | National Bureau of Economic Research, Inc. | N/A |
| Completed | Treatment of Covid-19 Associated Pneumonia With Allogenic Pooled Olfactory Mucosa-derived Mesenchymal Stem Cel NCT04382547 | Institute of Biophysics and Cell Engineering of National Academy of Sciences of Belarus | Phase 1 / Phase 2 |
| Completed | A Phase II, Controlled Clinical Study Designed to Evaluate the Effect of ArtemiC in Patients Diagnosed With CO NCT04382040 | MGC Pharmaceuticals d.o.o | Phase 2 |
| Terminated | Early CPAP in COVID-19 Confirmed or Suspected Patients NCT04390191 | Icahn School of Medicine at Mount Sinai | N/A |
| Completed | ROCO - Self-help for People With Psychological Distress Due to the Covid-19 Situation NCT04380909 | University of Bern | N/A |
| Completed | A Study of COVID 19 Convalescent Plasma in High Risk Patients With COVID 19 Infection NCT04392232 | TriHealth Inc. | Phase 2 |
| Completed | Convalescent Plasma for Patients With COVID-19 NCT04385199 | Henry Ford Health System | Phase 2 |
| Completed | Convalescent Plasma for Patients With COVID-19: A Pilot Study NCT04332380 | Universidad del Rosario | Phase 2 |
| Terminated | Does Hydroxychloroquine Before & During Patient Exposure Protect Healthcare Workers From Coronavirus? NCT04374942 | Megan Landes | Phase 3 |
| Terminated | Plasma Exchange in Patients With COVID-19 Disease and Invasive Mechanical Ventilation: a Randomized Controlled NCT04374539 | Fundacion Clinic per a la Recerca Biomédica | Phase 2 |
| Completed | Chloroquine/ Hydroxychloroquine Prevention of Coronavirus Disease (COVID-19) in the Healthcare Setting NCT04303507 | University of Oxford | N/A |
| Completed | Passive Immunity Trial for Our Nation to Treat COVID-19 in Hospitalized Adults NCT04362176 | Vanderbilt University Medical Center | Phase 3 |
| Completed | Sevoflurane in COVID-19 ARDS (SevCov) NCT04355962 | University of Zurich | Phase 3 |
| Completed | Prognostic Value of Point of Care Cardiac and Lung Ultrasound in COVID-19 NCT04379544 | University of Pennsylvania | — |
| Completed | St. Jude Tracking of Viral and Host Factors Associated With COVID-19 NCT04362995 | St. Jude Children's Research Hospital | — |
| Completed | A Study of a Candidate COVID-19 Vaccine (COV001) NCT04324606 | University of Oxford | Phase 1 / Phase 2 |
| Completed | Evaluation of Antibody Tests for COVID-19 NCT04360954 | Washington University School of Medicine | — |
| Completed | Anti-Coronavirus Therapies to Prevent Progression of Coronavirus Disease 2019 (COVID-19) Trial NCT04324463 | Population Health Research Institute | Phase 3 |
| Completed | ACCESS A Master Digital Surveillance Protocol for COVID-19 NCT04363268 | Medable Inc. | — |
| Unknown | Closed-Loop Oxygen to Verify That Healthcare Workers Interventions Decrease During SARS-CoV-2 Pneumonia (COVID NCT04320056 | Laval University | N/A |
| Completed | BCG Vaccine for Health Care Workers as Defense Against COVID 19 NCT04348370 | Texas A&M University | Phase 4 |
| Unknown | ASCO Survey on COVID-19 in Oncology (ASCO) Registry NCT04659135 | American Society of Clinical Oncology | — |
| Recruiting | ARMOR Study: COVID-19 Seroprevalence Among Healthcare Workers NCT04367857 | Columbia University | — |
| Completed | CONTAIN COVID-19: Convalescent Plasma to Limit COVID-19 Complications in Hospitalized Patients NCT04364737 | NYU Langone Health | Phase 2 |
| Recruiting | Convalescent Plasma Collection and Treatment in Pediatrics and Adults NCT04376034 | West Virginia University | Phase 3 |
| Unknown | COVID-19 Diagnostic Self-testing Using Virtual Point-of-care NCT04348864 | Neuroganics LLC | N/A |
| Recruiting | A Study to Explore the Role of Gut Flora in COVID-19 Infection NCT04359836 | ProgenaBiome | — |
| Completed | Efficacy of Chloroquine or Hydroxychloroquine in Treating Pneumonia Caused by SARS-Cov-2 - COVID-19 NCT04420247 | Centro de Estudos e Pesquisa em Emergencias Medicas e Terapia Intensiva | Phase 3 |
| Completed | Prevalence of Covid-19 in Children Admitted to Paediatric Emergency Departments During the Pandemic Period in NCT04336761 | University Hospital, Lille | — |
| Completed | COvid-19 and Vitamin D Supplementation: a Multicenter Randomized Controlled Trial of High Dose Versus Standard NCT04344041 | University Hospital, Angers | Phase 3 |
| Unknown | The McMaster Multi-Regional COVID-19 Hospital Case Registry NCT04508959 | McMaster University | — |
| Active Not Recruiting | COVID-19 Biorepository NCT04568148 | University of Kansas Medical Center | — |
| Terminated | Observational Study of COVID-19 Treatment Efficacy NCT04369989 | OSF Healthcare System | — |
| Completed | Place of Circulating Biomarkers and Respiratory Eicosanoids in the Prognosis of Severe Forms of Covid-19 Pneum NCT04485364 | Fondation Hôpital Saint-Joseph | — |
| Completed | An Observational Study of Patients With Coronavirus Disease 2019 NCT04331886 | Target PharmaSolutions, Inc. | — |
| Completed | Predictive Biomarkers of Secondary Aggravation in Covid-19 Suspect Patient NCT04341792 | University Hospital, Lille | — |
| Completed | COVID-19 Convalescent Plasma NCT04340050 | University of Chicago | EARLY_Phase 1 |
| Completed | Convalescent Plasma in the Treatment of COVID 19 NCT04343261 | Trinity Health Of New England | Phase 2 |
| Completed | COVID-19 First In Human Study to Evaluate Safety, Tolerability, and Pharmacokinetics of EIDD-2801 in Healthy V NCT04392219 | Ridgeback Biotherapeutics, LP | Phase 1 |
| Completed | A Double-blind, Placebo-controlled Clinical Trial of Fluvoxamine for Symptomatic Individuals With COVID-19 Inf NCT04342663 | Washington University School of Medicine | Phase 2 |
| Completed | TARGet Kids! COVID-19 Study of Children and Families NCT04449978 | The Hospital for Sick Children | — |
| Completed | Clinical Characterization Protocol for Severe Infectious Diseases (CCPSEI) NCT04496466 | Johns Hopkins University | — |
| Completed | Simple, Safe, Same: Lung Ultrasound for COVID-19 NCT04322487 | Catholic University of the Sacred Heart | — |
| Completed | COVID-19 Community Research Partnership NCT04342884 | Wake Forest University Health Sciences | — |
| Completed | Understanding Immunity to SARS-CoV-2, the Coronavirus Causing COVID-19 NCT04373148 | Stanford University | — |
| Unknown | Rutgers COVID-19 Cohort Study NCT04336215 | Rutgers, The State University of New Jersey | — |
| Terminated | Will Hydroxychloroquine Impede or Prevent COVID-19 NCT04341441 | Henry Ford Health System | Phase 3 |
| Terminated | PATCH 2&3:Prevention & Treatment of COVID-19 (Severe Acute Respiratory Syndrome Coronavirus 2) With Hydroxychl NCT04353037 | UnitedHealth Group | Phase 2 |
| Withdrawn | Patient Preference Trial for COVID-19 (PPT-COVID) NCT04418193 | Centre Hospitalier Princesse Grace | — |
| Unknown | Evaluation of Novel Diagnostic Tests for COVID-19 NCT04326387 | CCTU- Cancer Theme | — |
| Unknown | At-Home COVID-19 Antibody Test Usability Assessment & Behavior Change Study NCT04393961 | ProofPilot | N/A |
| Completed | Acceptance and Commitment Therapy Delivered by Automated Software Messaging NCT04329897 | University of Iowa | N/A |
| Completed | University of Utah COVID-19 Hydrochloroquine Trial NCT04342169 | University of Utah | Phase 2 |
| Completed | COVID-19 Pandemic Response Network NCT04320862 | Duke University | — |
| Completed | Characteristics of TraceTogether Users NCT04468581 | Yale-NUS College | — |
| Completed | Outcomes Related to COVID-19 Treated With Hydroxychloroquine Among In-patients With Symptomatic Disease NCT04332991 | Massachusetts General Hospital | Phase 3 |
| Unknown | A Human Clinical Study to Collect Calibration and Performance Data for the RBA-2 Device NCT04357977 | Kaligia Biosciences, LLC | — |
| Withdrawn | Convalescent Plasma to Limit Coronavirus Associated Complications NCT04325672 | Mayo Clinic | Phase 2 |
| Terminated | Personalized Health Education Against the Health Damage of Novel Coronavirus (COVID-19) Outbreak in Hungary NCT04321928 | University of Pecs | N/A |
| Terminated | Hydroxychloroquine Versus Placebo in COVID-19 Patients at Risk for Severe Disease NCT04325893 | University Hospital, Angers | Phase 3 |
| Withdrawn | Hydroxychloroquine Treatment of Healthcare Workers With COVID19 Illness at Montefiore NCT04350450 | Montefiore Medical Center | Phase 2 |
| Completed | Dexamethasone and COVID-19 Inpatient Mortality NCT04926571 | Aetion, Inc. | — |
| Completed | Viral Infection and Respiratory Illness Universal Study[VIRUS]: COVID-19 Registry NCT04323787 | Mayo Clinic | — |
| Unknown | Outcomes of Elective Cancer Surgery During the COVID-19 Pandemic Crisis NCT04384926 | University of Birmingham | — |
| Completed | PREdiction of DIagnosed Covid-19 infecTion in IUC Patients NCT04327180 | University Hospital, Lille | — |
| Completed | Cytokine Adsorption in Severe COVID-19 Pneumonia Requiring Extracorporeal Membrane Oxygenation NCT04324528 | Dr. Alexander Supady | N/A |
| Recruiting | Risk Factors for Community- and Workplace Transmission of COVID-19 NCT04320732 | Oslo University Hospital | — |
| Terminated | Preemptive Therapy for SARS-Coronavirus-2 (COVID-19 PEP Canada) NCT04421664 | McGill University Health Centre/Research Institute of the McGill University Health Centre | Phase 3 |
| Completed | Telephony Or Videophony for Isolated elDerly in Maine-Et-Loire 49 During COVID-19 NCT04333849 | University Hospital, Angers | — |
| Unknown | Biomarkers for Identification of COVID-19 Infection NCT04322513 | University of Catanzaro | — |
| Completed | Respiratory Decompensation and Model for the Triage of COVID-19 Patients NCT04390516 | Dascena | N/A |
| Completed | Nitric Oxide Gas Inhalation in Severe Acute Respiratory Syndrome in COVID-19 NCT04306393 | Massachusetts General Hospital | Phase 2 |
| Completed | Behavior, Environment And Treatments for Covid-19 NCT04321811 | xCures | — |
| Completed | COVID-19 PRIORITY (Pregnancy CoRonavIrus Outcomes RegIsTrY) NCT04323839 | University of California, San Francisco | — |
| Unknown | COVID-19: Healthcare Worker Bioresource: Immune Protection and Pathogenesis in SARS-CoV-2 NCT04318314 | University College, London | — |
| Completed | Social Media and COVID-19 NCT04367363 | Jean Liu | — |
| Completed | Post-exposure Prophylaxis / Preemptive Therapy for SARS-Coronavirus-2 NCT04308668 | University of Minnesota | Phase 3 |
| Completed | Adverse Events Related to Treatments Used Against Coronavirus Disease 2019 NCT04314817 | Groupe Hospitalier Pitie-Salpetriere | — |
| Completed | Covid-19 and Vitamin D in Nursing-home NCT04435119 | University Hospital, Angers | — |
| Completed | Hemodynamic Characteristics of Patients With SARS-CoV-2 NCT04337983 | Bicetre Hospital | — |
| Completed | "COVID-19 and Diabetes Outcomes" NCT04324736 | Nantes University Hospital | — |
| Completed | Identification of a Responsive Subpopulation to Hydroxychloroquine in COVID-19 Patients Using Machine Learning NCT04423991 | Dascena | N/A |
| Terminated | Factors Associated With a Positive SARS-CoV-2 Serology in Contact Subjects at High/Moderate Risk of Coronaviru NCT04322279 | Institut National de la Santé Et de la Recherche Médicale, France | — |
| Completed | Social Media Use During COVID-19 NCT04305574 | Jean Liu | — |
| Completed | COVID-19 Risk Stratification NCT04339387 | Brigham and Women's Hospital | — |
| Completed | Medical Masks vs N95 Respirators for COVID-19 NCT04296643 | McMaster University | Phase 4 |
| Completed | Darunavir/Cobicistat vs. Lopinavir/Ritonavir in COVID-19 Pneumonia in Qatar NCT04425382 | Hamad Medical Corporation | — |
| Completed | A Pilot Clinical Study on Inhalation of Mesenchymal Stem Cells Exosomes Treating Severe Novel Coronavirus Pneu NCT04276987 | Ruijin Hospital | Phase 1 |
| Completed | Efficacy and Safety of Hydroxychloroquine for Treatment of COVID-19 NCT04261517 | Shanghai Public Health Clinical Center | Phase 3 |
| Completed | Viral Excretion in Contact Subjects at High/Moderate Risk of Coronavirus 2019-nCoV Infection. COVID-19. NCT04259892 | Institut National de la Santé Et de la Recherche Médicale, France | — |
| Unknown | Anti-SARS-CoV-2 Inactivated Convalescent Plasma in the Treatment of COVID-19 NCT04292340 | Shanghai Public Health Clinical Center | — |
| Unknown | Efficacy and Safety of Darunavir and Cobicistat for Treatment of COVID-19 NCT04252274 | Shanghai Public Health Clinical Center | Phase 3 |
| Unknown | Clinical Characteristics and Prognostic Factors of Patients With COVID-19 NCT04328454 | Shanghai 10th People's Hospital | — |
| Unknown | Detection of 2019 Novel Coronavirus in Multiple Organ System and Its Relationship With Clinical Manifestations NCT04279795 | Third Affiliated Hospital, Sun Yat-Sen University | — |
| Unknown | Clinical Features of Suspected and Confirmed Patients of 2019 Novel Coronavirus Infection NCT04279782 | Third Affiliated Hospital, Sun Yat-Sen University | — |
| Unknown | Outcomes of Surgery in COVID-19 Infection: International Cohort Study (CovidSurg) NCT04323644 | University of Birmingham | — |
| Completed | Clinical and Radiomic Model of COVID-19 NCT04337502 | Maastricht University | — |
| Completed | Perceived Stress Among ICU Medical Staff During COVID-19 Crisis NCT04604769 | University of Liege | — |
| Unknown | Outcomes Mandate National Integration With Cannabis as Medicine NCT03944447 | OMNI Medical Services, LLC | Phase 2 |
| Completed | Lessening Organ Dysfunction With VITamin C NCT03680274 | Université de Sherbrooke | Phase 3 |
| Completed | The Respiratory Protection Effectiveness Clinical Trial NCT01249625 | Johns Hopkins University | N/A |
| Available | Eculizumab (Soliris) in Covid-19 Infected Patients NCT04288713 | Hudson Medical | — |