| Not Yet Recruiting | Clinical Study for Subjects With COVID-19 Using Allogeneic Adipose Tissue-Derived Mesenchymal Stem Cells NCT05017298 | Celltex Therapeutics Corporation | Phase 2 |
| Active Not Recruiting | SARS-CoV-2/COVID-19 Study of Next Generation Non-Invasive Passive Detection Technologies NCT05765396 | The Geneva Foundation | — |
| Unknown | Timed Awake Prone and Repositioning for Patients With Covid-19-induced Hypoxic Respiratory Failure. NCT05689216 | Second Affiliated Hospital, School of Medicine, Zhejiang University | N/A |
| Active Not Recruiting | Coronavirus Infection (COVID-19) and Radical Surgery in Patients With Early-stage Lung Cancer NCT05684549 | Ruijin Hospital | — |
| Unknown | Evaluation of Systemic and Oral Conditions of Pregnant Women and Their Babies, With Exposure to COVID-19 Infec NCT04492449 | University of Sao Paulo | — |
| Unknown | Should Palatine Tonsils be Included in the Oropharyngeal Swab for SARS-CoV-2 Molecular Testing? NCT05611203 | Rigshospitalet, Denmark | N/A |
| Completed | Study Designed to Evaluate the Effect of CimetrA in Patients Diagnosed With COVID-19 NCT05037162 | MGC Pharmaceuticals d.o.o | Phase 2 |
| Withdrawn | Umbilical Cord Tissue (UC) Derived Mesenchymal Stem Cells (MSCs) Versus Placebo to Treat Acute Pulmonary Infla NCT04490486 | Joshua M Hare | Phase 1 |
| Completed | Effect of Diaphragmatic Strengthening Exercises on Diaphragm Muscle Function in Patients With Post Covid-19 Sy NCT05787275 | Beni-Suef University | N/A |
| Completed | Effect of Active Cycle Breathing Technique Along With Incentive Spirometer on COVID19 Patient NCT05517941 | Cairo University | N/A |
| Completed | COVID-19 Antigen Rapid Test Evaluation in Low-Prevalence Setting NCT05911074 | Foundation for Innovative New Diagnostics, Switzerland | — |
| Completed | Computer Cognitive Training for Post-acute COVID-19 Syndrome NCT05338749 | Nova Southeastern University | N/A |
| Unknown | STS Administration on Coronavirus Disease (COVID-19) Patients in Critical Care NCT05277285 | Hellenic Institute for the Study of Sepsis | Phase 2 |
| Completed | Assessing Safety of Coronavirus Infection (COVID-19) Messenger RNA (mRNA) Vaccine Administration in the Settin NCT05212610 | University of Michigan | Phase 4 |
| Unknown | National Vaccine Adverse Event Reporting Survey and Etiology NCT05095844 | Neuroganics LLC | — |
| Completed | The Effects of COVID-19 Infection on Respiratory Muscle Strength and Core Stabilization NCT05461391 | Yeditepe University | — |
| Unknown | Clinical Assessment of Oral Lactoferrin as a Safe Antiviral and Immunoregulatory in Treating COVID-19 Disease NCT04412395 | National Research Centre, Egypt | Phase 2 |
| Completed | Effect of Interleukin 6 Receptor Antagonists in SARS-CoV-2 Patients NCT05367882 | Assiut University | — |
| Unknown | Early-initiated High Flow Oxygen Therapy vs Conventional Oxygen Therapy Among Patients With ARDS in the Course NCT05197686 | Pomeranian Medical University Szczecin | N/A |
| Unknown | THE RELATIONSHIP OF CRP/ALBUMIN RATIO LEVEL AND PROGNOSIS IN PREGNANT COVID-19 PATIENTS NCT05242172 | Adiyaman University Research Hospital | — |
| Completed | Physical and Cognitive Impairments in People Suffering From Long COVID NCT05216536 | Laval University | — |
| Withdrawn | Evaluating the Efficacy of Artesunate in Adults With Mild Symptoms of COVID-19 NCT04387240 | Princess Nourah Bint Abdulrahman University | Phase 2 |
| Terminated | A Study of Baricitinib (LY3009104) in Children With COVID-19 NCT05074420 | Eli Lilly and Company | Phase 3 |
| Completed | Cereset Research In Healthcare Workers During COVID-19 NCT04682197 | Wake Forest University Health Sciences | N/A |
| Withdrawn | Feasibility of a Self-guided Exercise Program Among Hospitalized COVID-19 Patients NCT04821531 | Montefiore Medical Center | N/A |
| Unknown | SPI-1005 Treatment in Moderate COVID-19 Patients NCT04484025 | Sound Pharmaceuticals, Incorporated | Phase 2 |
| Completed | Detecting SARS-CoV-2 in Tears NCT04526769 | University of Minnesota | — |
| Completed | BBV152/BBV154 Heterologus Prime-Boost Study NCT05639998 | Bharat Biotech International Limited | Phase 2 |
| Completed | A Trial Evaluating the Safety and Immunogenicity of 3 COVID-19 SARS-CoV-2 RNA Vaccines in Healthy Adults NCT05037097 | Arcturus Therapeutics, Inc. | Phase 1 / Phase 2 |
| Unknown | SPI-1005 Treatment in Severe COVID-19 Patients NCT04483973 | Sound Pharmaceuticals, Incorporated | Phase 2 |
| Completed | Effect of Aerobics and Balancing Exercises on Anxiety and Dizziness in Patients With COVID-19 NCT04996225 | Merit University | N/A |
| Completed | Early Application of Continuous Positive Airway Pressure in Coronavirus Patients at Risk of Obstructive Sleep NCT05934916 | Mansoura University | N/A |
| Completed | An Open Comparative Study of the Effectiveness and Incomparable Study of the Immunogenicity and Safety of the NCT05765773 | Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products | Phase 2 |
| Completed | Intravenous Zotatifin in Adults With Mild or Moderate COVID-19 NCT04632381 | Effector Therapeutics | Phase 1 |
| Unknown | Clinical Study Designed to Evaluate the Effect of CimetrA in Patients Diagnosed With COVID-19 NCT04802382 | MGC Pharmaceuticals d.o.o | Phase 3 |
| Completed | imPulse™ Una Infrasound-to-ultrasound E-stethoscope NCT04941209 | Level 42 AI, Inc. | — |
| Unknown | Clinical, Functional, Immunological and Genetic Factors on the Severity of the Course of Coronavirus Infection NCT04987853 | National Research Center for Cardiac Surgery, Kazakhstan | — |
| Completed | Photo-Protection Trial (NB-UVB vs. Placebo) in High-risk Hospitalized COVID-19 Patients NCT04818970 | Cytokind, Inc. | N/A |
| Terminated | Inhaled Aviptadil for the Treatment of COVID-19 in Patients at High Risk for ARDS NCT04536350 | Prof. Dr. Jörg Leuppi | Phase 2 |
| Withdrawn | Protective Measures Against SARS-CoV-2 Contamination of Young Healthy Volunteers During a Concert of Actual Mu NCT04868942 | ANRS, Emerging Infectious Diseases | N/A |
| Terminated | Impact of Colchicine in Hospitalized Colombian Patients With COVID-19 NCT04539873 | Fundación Universitaria de Ciencias de la Salud | Phase 3 |
| Unknown | Cerebral Bleeding in COVID-19 ARDS Patients on Veno-venous ECMO NCT04853953 | University of Zurich | — |
| Terminated | Performance Study of SONA Saliva C-19 Rapid Test NCT04877002 | Sona Nanotech Inc | N/A |
| Completed | EFFICACY and SAFETY OF BEVACIZUMAB (ZIRABEV®) IN PATIENTS WITH SEVERE HYPOXEMIC COVID-19 NCT04822818 | Assistance Publique - Hôpitaux de Paris | Phase 3 |
| Completed | Follow-up of Covid-19 Long Term Sequelae NCT05097677 | Azienda Ospedaliera Universitaria Integrata Verona | — |
| Terminated | AirFLO2 Treatment for Hypoxia and/or Tachypnea in Patients With COVID-19 NCT04649775 | Duke University | N/A |
| Completed | Prospective Electroencephalography Evaluation of Sedation in COVID-19 NCT04815109 | Goethe University | — |
| Completed | Effect of N-acetylcysteine on Oxidative Stress in COVID-19 Patients NCT04792021 | Ain Shams University | Phase 3 |
| Completed | SARS-CoV-2 Human Challenge Characterisation Study NCT04865237 | Imperial College London | N/A |
| Recruiting | KIDney Injury in Times of COVID-19 (KIDCOV) NCT04705766 | University of California, San Francisco | — |
| Terminated | COVID-19 Primary Care Platform for Early Treatment and Recovery (COPPER) Study NCT04746430 | General Practitioners Research Institute | Phase 4 |
| Completed | Evaluation of Physical and Functional Status in Patients With COVID-19 in Long Term NCT04836767 | Hacettepe University | — |
| Terminated | Glucocorticoid Therapy in Coronavirus Disease COVID-19 Patients NCT04780581 | Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León | Phase 4 |
| Suspended | Microbiome Therapy in Covid-19 Primary Care Support NCT04793997 | University Hospital, Antwerp | N/A |
| Unknown | Quantification of Binding and Neutralizing Antibody Levels in COVID-19 Vaccinated Health Care Workers Over 1 Y NCT04910971 | LifeBridge Health | — |
| Completed | Does Coronavirus Disease 2019 (COVID-19) Pandemic Cause a Delay in the Diagnosis of Gastric Cancer Patients? NCT04797624 | Adana City Training and Research Hospital | — |
| Completed | Reconvalescent Plasma/Camostat Mesylate Early in SARS-CoV-2 Q-PCR (COVID-19) Positive High-risk Individuals NCT04681430 | Heinrich-Heine University, Duesseldorf | Phase 2 |
| Terminated | A Trial Evaluating the Safety and Effects of an RNA Vaccine ARCT-021 in Healthy Adults NCT04668339 | Arcturus Therapeutics, Inc. | Phase 2 |
| Completed | Understanding COVID-19 Infection in Pregnant Women and Their Babies NCT04703270 | St George's, University of London | — |
| Completed | Covid-19 Vaccine Effectiveness in Healthcare Personnel in Clalit Health Services in Israel (CoVEHPI) NCT04709003 | Clalit Health Services | — |
| Completed | Umbilical Cord Lining Stem Cells (ULSC) in Patients With COVID-19 ARDS NCT04494386 | Restem, LLC. | Phase 1 / Phase 2 |
| Completed | Placebo Controlled Trial to Evaluate Zinc for the Treatment of COVID-19 in the Outpatient Setting NCT04621461 | St. Francis Hospital, New York | Phase 4 |
| Unknown | Ezrin Peptide (HEP-1) for Treatment of Coronavirus Disease (COVID-19) Infection NCT04627233 | Shahid Beheshti University of Medical Sciences | Phase 1 |
| Completed | A Pilot Study to Assess Safety and Efficacy of SIR1-365 in Patients With Severe COVID-19 NCT04622332 | Sironax USA, Inc. | Phase 1 |
| Unknown | RIC as an Adjunct Therapy for Severe COVID-19 Disease: a Prospective Randomized Pilot Study NCT04659460 | Unity Health Toronto | N/A |
| Completed | High Dose Vitamin-D Substitution in Patients With COVID-19: a Randomized Controlled, Multi Center Study NCT04525820 | Prof. Dr. Jörg Leuppi | N/A |
| Completed | A Follow On Community Testing Study To Evaluate The Performance of the Lucira COVID-19 All-In-One Test Kit NCT04720235 | Lucira Health Inc | N/A |
| Completed | Trial of Combination Therapy to Treat COVID-19 Infection NCT04482686 | ProgenaBiome | Phase 1 |
| Completed | Effect of Pentoxifylline on Prognosis of Coronavirus Disease 2019 (COVID- 19) Infection NCT04739345 | Ain Shams University | N/A |
| Completed | Comparison of Tocilizumab Versus Tocilizumab/Infliximab in Patients With COVID-19-associated Cytokine Storm Sy NCT04734678 | Ain Shams University | — |
| Completed | Effect of Prophylactic and Therapeutic Anticoagulants in Egyptian Patients With COVID-19 NCT04736901 | Ain Shams University | — |
| Completed | Clinical Outcomes of High Dose Vitamin D Versus Standard Dose in COVID-19 Egyptian Patients NCT04738760 | Ain Shams University | — |
| Completed | Evaluation of Serological Techniques for Screening for COVID-19 Infection at the University Hospital of Rouen NCT04707833 | University Hospital, Rouen | N/A |
| Completed | Efficacy of Inhaled Nitroglycerin in Moderate to Critically Ill COVID-19 Patients NCT04686760 | University of Lahore | N/A |
| Completed | Therapeutic Study to Evaluate the Safety and Efficacy of DW-MSC in COVID-19 Patients NCT04535856 | Ina-Respond | Phase 1 |
| Terminated | Impact of Intravenous Lidocaine on Clinical Outcomes of Patients With ARDS During COVID-19 Pandemia NCT04609865 | University Hospital, Strasbourg, France | Phase 3 |
| Completed | Role of Mega Dose of Vitamin C in Critical COVID-19 Patients NCT04682574 | University of Lahore | N/A |
| Unknown | Haemoglobin Concentration on COVID-19 NCT04377607 | Nevsehir Public Hospital | — |
| Completed | Anakinra in the Management of COVID-19 Infection NCT04643678 | Hamad Medical Corporation | Phase 2 / Phase 3 |
| Recruiting | Understanding Immunity to the Flu Vaccine in COVID-19 Patients NCT04579588 | Stanford University | — |
| Unknown | T Cells Response to SARS COV 2 Peptides NCT04573348 | Savicell Diagnostics Ltd | — |
| Completed | Nasal Photodisinfection COVID-19 Proof of Concept Study NCT04615936 | Sunnybrook Health Sciences Centre | N/A |
| Unknown | Differential Expression of Cytokines, Transcriptome and miRNA in Coronavirus Disease 2019 (COVID-19) Egyptian' NCT04583566 | Tanta University | — |
| Completed | Mucolytics in Patients on Invasive Mechanical Ventilation Due to Severe Acute Respiratory Syndrome Coronavirus NCT04755972 | Clinical Hospital Center, Split | N/A |
| 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 Study To Evaluate The Performance of the Lucira Health All-In-One COVID-19 Test Kit vs Hologic Panther Fusio NCT04720794 | Lucira Health Inc | N/A |
| Unknown | Adolescents With COVID-19/MIS-C at HCFMUSP NCT04659486 | University of Sao Paulo | N/A |
| Completed | Non-invasive Prognostication of COVID-19 Patients by Use of Biomarkers in Exhaled Breath Condensate NCT04598620 | Inger Lise Gade | — |
| Unknown | Corona Virus Infection Among Liver Transplant Recipients NCT04565782 | Assiut University | — |
| Unknown | Safety, Tolerability and Pharmacokinetics of Inhaled Nanoparticle Formulation of Remdesivir (GS-5734) and NA-8 NCT04480333 | Biomed Industries, Inc. | Phase 1 |
| Completed | Efficacy of CONvalescent Plasma in Patients With COVID-19 Treated With Mechanical Ventilation NCT04558476 | University of Liege | Phase 2 |
| Completed | Zofin (Organicell Flow) for Patients With COVID-19 NCT04384445 | ZEO ScientifiX, Inc. | Phase 1 / Phase 2 |
| Completed | Safety Infusion of NatuRal KillEr celLs or MEmory T Cells as Adoptive Therapy in COVID-19 pnEumonia or Lymphop NCT04578210 | Instituto de Investigación Hospital Universitario La Paz | Phase 1 / Phase 2 |
| Completed | Anal Fissure Among Survivors of COVID-19 Virus Infection. NCT05736926 | Mansoura University | — |
| Withdrawn | Phase II RCT to Assess Efficacy of Intravenous Administration of Oxytocin in Patients Affected by COVID-19 NCT04386447 | Azienda Ospedaliero-Universitaria di Parma | Phase 2 |
| Completed | Training the Innate Immune System Against SARS-CoV-2 (COVID-19) Using the Shingrix Vaccine in Nursing Home Res NCT04523246 | University of Oklahoma | EARLY_Phase 1 |
| Unknown | Detection of SARS-CoV-2 in Semen of COVID-19 Positive Males NCT04391829 | Universitair Ziekenhuis Brussel | N/A |
| Completed | The Change of Critical Patient Managements and Subsequent Influences Under Epidemic of Coronavirus Disease 19 NCT04479332 | National Taiwan University Hospital | N/A |
| Unknown | Investigating the Involvement of ACE and Angiotensinogen Genes' Polymorphism Along With Other Thrombophilic Ge NCT04519398 | Grigore T. Popa University of Medicine and Pharmacy | — |
| Withdrawn | Early Extubation for Patients With Acute Hypoxemic Respiratory Failure NCT04349332 | University of Chicago | N/A |
| Unknown | Covid-19 Convalescent Plasma as Prevention and Treatment for Children With Underlying Medical Conditions NCT04462848 | University of California, Los Angeles | Phase 1 |
| Unknown | Restoring Non-Emergent Cardiovascular Care in the Peri- COVID-19 Era NCT04636021 | Pinnacle Health Cardiovascular Institute | — |
| Completed | Cutaneous Manifestations of Coronavirus Disease 2019(COVID-19). NCT05094687 | Jinnah Postgraduate Medical Centre | — |
| Completed | Trial of COVID-19 Outpatient Treatment in Individuals With Risk Factors for Aggravation NCT04356495 | University Hospital, Bordeaux | Phase 2 / Phase 3 |
| Unknown | Anti-IL6 and Corticosteroid Monotherapy vs Combination in COVID-19 NCT04486521 | King Faisal Specialist Hospital & Research Center | — |
| Completed | Characteristics of COVID-19 Infection Among PREGnant Women NCT04398264 | Inova Health Care Services | — |
| Unknown | Prevention, Efficacy and Safety of BCG Vaccine in COVID-19 Among Healthcare Workers NCT04461379 | Hospital Universitario Dr. Jose E. Gonzalez | Phase 3 |
| Withdrawn | Epidemiologic Assessment of SARS-CoV-2 (COVID-19) Prevalence in Minnesota NCT04473183 | University of Minnesota | — |
| Completed | A Phase 1b Trial to Evaluate Safety and Effect of SAR443122 on Immune System in Severe COVID-19 NCT04469621 | Sanofi | Phase 1 |
| Terminated | Enzalutamide Treatment in COVID-19 NCT04475601 | Andreas Josefsson | Phase 2 |
| Withdrawn | Inhaled NO for the Treatment of COVID-19 Caused by SARS-CoV-2 (CANADA Trial) NCT04456088 | Beyond Air Inc. | Phase 2 |
| Unknown | Efficacy of Iodine Complex Against COVID-19 Patients NCT04473261 | Sohaib Ashraf | Phase 1 / Phase 2 |
| Completed | Salivary SARS-CoV-2 Load of Covid-19 Patients After Oral Antimicrobial Solutions and Dentifrices NCT04537962 | Hospital Israelita Albert Einstein | N/A |
| Unknown | Physiotherapy as a Complimentary Treatment in Reducing Viral-Load, Complications, Death, Expedite Discharge an NCT04471831 | University of Lagos, Nigeria | N/A |
| Unknown | Extracellular Water in Covid 19 Pneumonia NCT04416009 | Gaziosmanpasa Research and Education Hospital | — |
| Completed | COVID-19 Infection and Multiple Myeloma NCT04492371 | Stichting European Myeloma Network | — |
| Withdrawn | A Study of Combination Therapies to Treat COVID-19 Infection NCT04459702 | ProgenaBiome | Phase 2 |
| Completed | Long-Term Experience and Health Effects of COVID-19 NCT04477902 | Altura | — |
| Completed | Stress Related Disorders in Family Members of COVID-19 Patients Admitted to the ICU NCT04476914 | University of Colorado, Denver | — |
| Completed | A Study of Quintuple Therapy to Treat COVID-19 Infection NCT04334512 | ProgenaBiome | Phase 2 |
| Completed | A Study of Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection NCT04335084 | ProgenaBiome | Phase 2 |
| Unknown | Prevalence and Risk Factors of COVID-19 in the Upper Silesian Agglomeration NCT04627623 | Medical University of Silesia | — |
| Unknown | PHenotyping patiENts Admitted to Hospital With cOvid-19 Infection and idenTifYing Prognostic markErs NCT04459351 | Chelsea and Westminster NHS Foundation Trust | — |
| Terminated | hCT-MSCs for COVID19 ARDS NCT04399889 | Joanne Kurtzberg, MD | Phase 1 / Phase 2 |
| Completed | Investigating Anosmia and Ageusia in COVID-19 Adult Patients in Saudi Arabia NCT04388618 | Princess Nourah Bint Abdulrahman University | — |
| Terminated | Inhaled NO for the Treatment of COVID-19 Caused by SARS-CoV-2 (US Trial) NCT04397692 | Beyond Air Inc. | N/A |
| Completed | Awake Prone Position in Hypoxemic Patients With Coronavirus Disease 19 COVID-19 (COVI-PRONE) NCT04350723 | St. Joseph's Healthcare Hamilton | N/A |
| Unknown | Clinical Efficacy of Nafamostat Mesylate for COVID-19 Pneumonia NCT04418128 | Gyeongsang National University Hospital | Phase 2 / Phase 3 |
| Completed | Functional Recovery of Hospitalised Patients With COVID-19: The COREG Extension Study NCT04602260 | McMaster University | — |
| Completed | Thrombosis Risk Assessment and Clinical Presentation of Covid-19 Pneumonia NCT04423315 | Istanbul Nisantasi University | — |
| Completed | Psychiatric Disturbances and COVID-19 Infection NCT04459403 | Cairo University | — |
| Unknown | Prevalence and Risk Factors of SARS-CoV-2 Antibody Responses (COVID-19) NCT04425759 | Hospital de Mataró | — |
| Completed | Sero-prevalence of Coronavirus Disease 2019 (COVID-19) in Healthcare Workers NCT04424017 | Egyptian Center for Research and Regenerative Medicine | — |
| Completed | Timing of Tracheotomy in Covid-19 Patients NCT04412356 | Sahlgrenska University Hospital | N/A |
| Completed | EXercise TRAining and Sedentary Lifestyle on Clinical Outcomes in Patients With COVID-19 NCT04396353 | University of Sao Paulo General Hospital | — |
| Unknown | Evaluation of an Alternative Method of Obtaining Viral RNA for the Detection of SARS-CoV-2 Virus Using PCR NCT04468217 | Neurognos | — |
| Unknown | Study of Biomarkers in the Long-term Impact of Coronavirus Infection in the Cardiorespiratory System NCT04353245 | University of Sao Paulo General Hospital | — |
| Withdrawn | Convalescent Antibodies Infusion in COVID 19 Patients NCT04418531 | Piero Luigi Ruggenenti | N/A |
| Completed | Efficacy of Intravenous Infusions of Stem Cells in the Treatment of COVID-19 Patients NCT04437823 | Jinnah Hospital | Phase 2 |
| Completed | Dipyridamole to Prevent Coronavirus Exacerbation of Respiratory Status (DICER) in COVID-19 NCT04391179 | University of Michigan | Phase 2 |
| Completed | Bacillus Calmette-guérin Vaccination to Prevent COVID-19 NCT04414267 | Hellenic Institute for the Study of Sepsis | Phase 4 |
| Completed | Noninvasive Respiratory Support in COVID-19 (CATCOVID-AIR) NCT04668196 | Hospital Universitari Vall d'Hebron Research Institute | — |
| Completed | Lung Ultrasound for Assessment of Patients With Moderate to Severe Covid-19 NCT04412551 | Dalarna County Council, Sweden | — |
| Unknown | Baricitinib for coRona Virus pnEumonia (COVID-19): a THerapeutic Trial NCT04399798 | Fondazione IRCCS Policlinico San Matteo di Pavia | Phase 2 |
| Terminated | Study Assessing Vagus Nerve Stimulation in CoViD-19 Respiratory Symptoms NCT04382391 | Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute) | N/A |
| Completed | Epidemiological and Demographic Data From 150 Patients Diagnosed With Coronavirus Disease 2019 Pneumonia NCT04430023 | Sisli Hamidiye Etfal Training and Research Hospital | — |
| Completed | Intravenous Aviptadil for Critical COVID-19 With Respiratory Failure NCT04311697 | APR Applied Pharma Research s.a. | Phase 2 / Phase 3 |
| Completed | Predicting Favorable Outcomes in Hospitalized Covid-19 Patients NCT04570488 | NYU Langone Health | — |
| Unknown | Prone Positioning and High-flow Nasal Cannula in COVID-19 Induced ARDS NCT04391140 | Hospital Universitari Vall d'Hebron Research Institute | N/A |
| Recruiting | Novel Regimens in COVID-19 Treatment NCT04382846 | Tanta University | Phase 3 |
| 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 |
| Completed | Nitric Oxide Releasing Solutions to Prevent and Treat Mild/Moderate COVID-19 Infection NCT04337918 | Sanotize Research and Development corp. | Phase 2 |
| Completed | Characteristics and Outcomes of Patients With COVID-19 Admitted to the ICU NCT04378582 | University of Sao Paulo General Hospital | — |
| Withdrawn | Subcutaneous Sarilumab vs Placebo in Hospitalized Patients With Respiratory Distress Caused by COVID 19 NCT07196306 | BayCare Health System | Phase 2 |
| Completed | Seroprevalence of SARS-Cov-2 Antibodies in Children NCT04347408 | Queen's University, Belfast | — |
| Completed | Ozone Therapy in the Prevention of COVID-19 Infection NCT04400006 | Marmara University | — |
| Completed | Anti-inflammatory Clarithromycin for Improving COVID-19 Infection Early NCT04398004 | Hellenic Institute for the Study of Sepsis | Phase 2 |
| Completed | Convalescent Plasma for Treatment of COVID-19 Patients With Pneumonia NCT04374565 | University of Virginia | Phase 2 |
| Completed | Serology COVID-19 From the Cornwall Hospital Union NCT04363593 | Centre Hospitalier de Cornouaille | N/A |
| Completed | Does Hepatitis C Management Protect Egyptian Population Against Severe Corona Virus Disease-2019? NCT04757272 | Zagazig University | — |
| Completed | Convalescent Plasma Therapy in Patients With COVID-19 NCT04407208 | Biofarma | Phase 1 |
| Unknown | COVID-19 Specific T Cell Derived Exosomes (CSTC-Exo) NCT04389385 | TC Erciyes University | Phase 1 |
| Unknown | Demographics and Outcomes of COVID 19 in Pregnancy at a Community Based Hospital NCT04385914 | Atlantic Health System | — |
| Completed | Persistence of Symptoms After Improvement of Acute COVID-19 NCT04764773 | Sohag University | — |
| Unknown | Social Media and Covid19 Pandemic NCT04378738 | Acibadem University | N/A |
| Terminated | Efficacy and Safety of Novel Treatment Options for Adults With COVID-19 Pneumonia NCT04345289 | Thomas Benfield | Phase 3 |
| Completed | Cytopenias in Hospitalized Patients of Corona Virus Infection(COVID-19) During First and Other Waves NCT05258812 | Fatima Memorial Hospital | — |
| Withdrawn | Hydroxychloroquine to Prevent COVID-19 Disease Amongst Healthcare Workers NCT04371523 | St. Joseph's Healthcare Hamilton | Phase 3 |
| Completed | Assessing the Mother-to-infant Transmission Capabilities of COVID-19 Infection Among Pregnant Women in Ontario NCT04913948 | Ottawa Hospital Research Institute | — |
| Unknown | Psychological Impact of the Corona Virus (SARS-CoV-2) and COVID-19 Pandemic in Individuals With Psychiatric Di NCT04410835 | Medical University of Graz | — |
| Unknown | Hydroxychloroquine as Prophylaxis for COVID-19 in Healthcare Workers (HCQPreP) NCT04363450 | Louisiana State University Health Sciences Center in New Orleans | Phase 3 |
| Recruiting | Risk Factors, Clinical Characteristics and Outcomes of Acute Infection With Coronavirus 2019 (COVID-19) In Chi NCT04371315 | St. Jude Children's Research Hospital | — |
| Completed | Use of UC-MSCs for COVID-19 Patients NCT04355728 | Camillo Ricordi | Phase 1 / Phase 2 |
| Completed | Knowledge, Attitude and Practice of Dental Students About COVID-19 NCT04449081 | Melaka Manipal Medical College | — |
| Completed | Acute Kidney Injury and Acute Kidney Disease in COVID-19 NCT04353583 | University of Giessen | — |
| Active Not Recruiting | Assessing the Safety of Pregnancy In the CoRonavirus (COVID-19) pandEmic NCT04388605 | University of California, San Francisco | — |
| Completed | Registry for Clinical Presentation and Management of Patients With COVID-19 in the Emergency Room NCT04351854 | University of Cologne | — |
| Completed | ACCESS A Master Digital Surveillance Protocol for COVID-19 NCT04363268 | Medable Inc. | — |
| Completed | Kidney in Coronavirus Disease 2019 Registry NCT04797091 | University of Cologne | — |
| Completed | Nitazoxanide Therapy for Patients With COVID-19 Pneumonia NCT04561219 | Universidade Federal do Rio de Janeiro | Phase 2 |
| Terminated | Trial of Hydroxychloroquine In Covid-19 Kinetics NCT04353271 | University of South Alabama | Phase 2 / Phase 3 |
| Completed | Antiviral T Lymphocyte Immunity During Acute COVID-19 Infection NCT04707820 | University Hospital, Rouen | N/A |
| Completed | Rapid Salivary Test to Detect SARS-CoV-2 (COVID-19) NCT04357327 | Università degli Studi dell'Insubria | N/A |
| Recruiting | A Study to Explore the Role of Gut Flora in COVID-19 Infection NCT04359836 | ProgenaBiome | — |
| Unknown | Epidemiology and Outcome of Ventilator-associated Pneumonia Among Critically Ill COVID-19 Patients NCT04372576 | Semmelweis University | — |
| 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 | suPAR-guided Anakinra Treatment for Validation of the Risk and Management of Respiratory Failure by COVID-19 ( NCT04357366 | Hellenic Institute for the Study of Sepsis | Phase 2 |
| Completed | Study of the Immunity of Patients With Lung Cancer and COVID-19 Infection NCT04407143 | Fundación GECP | — |
| Terminated | Observational Study of COVID-19 Treatment Efficacy NCT04369989 | OSF Healthcare System | — |
| Completed | Losartan for Patients With COVID-19 Requiring Hospitalization NCT04312009 | University of Minnesota | Phase 2 |
| Unknown | Microbiota in COVID-19 Patients for Future Therapeutic and Preventive Approaches NCT04410263 | University of Zurich | — |
| Completed | COVID-19 Health Messaging Efficacy and Its Impact on Public Perception, Anxiety, and Behavior NCT04377581 | Milton S. Hershey Medical Center | — |
| Completed | Losartan for Patients With COVID-19 Not Requiring Hospitalization NCT04311177 | University of Minnesota | Phase 2 |
| Unknown | Angiotensin Receptor Blockers and Angiotensin-converting Enzyme Inhibitors and Adverse Outcomes in Patients Wi NCT04364893 | D'Or Institute for Research and Education | N/A |
| Terminated | Intensive Care Associated Complications and Outcome of Acute Respiratory Distress Syndrome Due to COVID-19 NCT04397172 | Insel Gruppe AG, University Hospital Bern | — |
| Completed | Coronavirus 2019 (COVID-19)- Using Ascorbic Acid and Zinc Supplementation NCT04342728 | The Cleveland Clinic | N/A |
| Active Not Recruiting | Long Term Outcomes of Patients With COVID-19 NCT04360538 | University of Chicago | — |
| Completed | CORIMUNO-ANA: Trial Evaluating Efficacy Of Anakinra In Patients With Covid-19 Infection NCT04341584 | Assistance Publique - Hôpitaux de Paris | Phase 2 |
| Terminated | PATCH 2&3:Prevention & Treatment of COVID-19 (Severe Acute Respiratory Syndrome Coronavirus 2) With Hydroxychl NCT04353037 | UnitedHealth Group | Phase 2 |
| Completed | Pre-exposure Prophylaxis for SARS-Coronavirus-2 NCT04328467 | University of Minnesota | Phase 3 |
| Completed | Enhanced Platelet Inhibition in Critically Ill Patients With COVID-19 NCT04368377 | University of Milan | Phase 2 |
| Terminated | Proactive Protection With Azithromycin and hydroxyChloroquine in Hospitalized Patients With COVID-19 NCT04322396 | Chronic Obstructive Pulmonary Disease Trial Network, Denmark | Phase 2 |
| Unknown | Psychological Burden in ICU Survivors of Severe COVID-19 Pneumonia, Their Relatives and Their Healthcare Provi NCT04341519 | Assistance Publique - Hôpitaux de Paris | — |
| Completed | The Impact of Camostat Mesilate on COVID-19 Infection NCT04321096 | University of Aarhus | Phase 1 / Phase 2 |
| Completed | French Multicentre Observational Study on SARS-Cov-2 Infections (COVID-19) ICU Management Study NCT04340466 | Centre Hospitalier Universitaire de Nīmes | — |
| Completed | Personalised Immunotherapy for SARS-CoV-2 (COVID-19) Associated With Organ Dysfunction NCT04339712 | Hellenic Institute for the Study of Sepsis | Phase 2 |
| Completed | Early PP With HFNC Versus HFNC in COVID-19 Induced Moderate to Severe ARDS NCT04325906 | Rush University Medical Center | N/A |
| Completed | COVID-19 Immune Repertoire Sequencing NCT04368143 | Institute of Tropical Medicine, Belgium | — |
| Completed | Clinical Use of Stem Cells for the Treatment of Covid-19 NCT04392778 | SBÜ Dr. Sadi Konuk Eğitim ve Araştırma Hastanesi | Phase 1 / Phase 2 |
| Completed | Hydroxychloroquine for COVID-19 Post-exposure Prophylaxis (PEP) NCT04328961 | University of Washington | Phase 2 / Phase 3 |
| Suspended | Hydroxychloroquine in Patients With Newly Diagnosed COVID-19 Compared to Standard of Care NCT04334967 | Providence Health & Services | Phase 4 |
| Completed | BCG Vaccination to Protect Healthcare Workers Against COVID-19 NCT04327206 | Murdoch Childrens Research Institute | Phase 3 |
| Completed | CORIMUNO-19 - Tocilizumab Trial - TOCI (CORIMUNO-TOCI) NCT04331808 | Assistance Publique - Hôpitaux de Paris | Phase 2 |
| Terminated | Hydroxychloroquine Post Exposure Prophylaxis for Coronavirus Disease (COVID-19) NCT04318444 | Columbia University | Phase 2 / Phase 3 |
| Completed | Sarilumab COVID-19 NCT04327388 | Sanofi | Phase 3 |
| Completed | Cohort Multiple Randomized Controlled Trials Open-label of Immune Modulatory Drugs and Other Treatments in COV NCT04324073 | Assistance Publique - Hôpitaux de Paris | Phase 2 / Phase 3 |
| Unknown | Cohort Multiple Randomized Controlled Trials Open-label of Immune Modulatory Drugs and Other Treatments in COV NCT04324047 | Assistance Publique - Hôpitaux de Paris | — |
| Recruiting | Determinants of SARS (Severe Acute Respiratory Syndrome)-COV2 (COVID-19) Persistence After Convalescence NCT04448145 | Columbia University | — |
| Completed | Acquiring Convalescent Specimens for COVID-19 Antibodies NCT04342195 | Columbia University | — |
| Unknown | Norwegian Coronavirus Disease 2019 Study NCT04316377 | University Hospital, Akershus | Phase 4 |
| 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 |
| Terminated | Colchicine Coronavirus SARS-CoV2 Trial (COLCORONA) NCT04322682 | Montreal Heart Institute | Phase 3 |
| Completed | Trial of Treatments for COVID-19 in Hospitalized Adults NCT04315948 | Institut National de la Santé Et de la Recherche Médicale, France | Phase 3 |
| Unknown | Prospective Registry of Corona Virus Disease 2019 (Covid-19) Patients With Neuromuscular Involvement NCT04367350 | University Hospital Tuebingen | — |
| Completed | Post-exposure Prophylaxis / Preemptive Therapy for SARS-Coronavirus-2 NCT04308668 | University of Minnesota | Phase 3 |
| Completed | Clinical Characteristics and In-hospital Death of a Chilean COVID-19 Prospective Cohort NCT04758039 | University of Chile | — |
| Completed | HYPONATREMIA IN COVID-19 PATIENTS NCT04493268 | Hospital Nacional Profesor Alejandro Posadas | — |
| Unknown | Survey of Satisfaction on Traditional Chinese Medicine Jing-Guan-Fang (JGF) for COVID-19 Prevention NCT04388644 | Taipei City Hospital | — |
| Withdrawn | A Study of ResCure™ to Treat COVID-19 Infection NCT04395716 | ProgenaBiome | Phase 1 |
| Unknown | Outcomes Mandate National Integration With Cannabis as Medicine NCT03944447 | OMNI Medical Services, LLC | Phase 2 |
| Completed | The Impact of Premorbid Illnesses on the Risk of ICU Admission and Short-term Outcome NCT04542538 | Uppsala University | — |
| Completed | A Safety, Tolerability, Pharmacokinetics and Immunogenicity Trial of Co-administered MERS-CoV Antibodies REGN3 NCT03301090 | National Institute of Allergy and Infectious Diseases (NIAID) | Phase 1 |
| Terminated | Inhaled Gaseous Nitric Oxide (gNO) Antimicrobial Treatment of Difficult Bacterial and Viral Lung (COVID-19) In NCT03331445 | Chris Miller | Phase 2 |
| Available | Expanded Access to Zofin for Patients With COVID-19 NCT04657406 | ZEO ScientifiX, Inc. | — |
| No Longer Available | Evaluating the Use of Polymyxin B Cartridge Hemoperfusion for Patients With Septic Shock and COVID 19 NCT04352985 | Spectral Diagnostics (US) Inc. | — |
| No Longer Available | Experimental Expanded Access Treatment With Convalescent Plasma for the Treatment of Patients With COVID-19 NCT04445207 | Jonathan Gerber | — |