| Active Not Recruiting | Pancoronavirus Vaccine Study in Healthy Adults NCT06950177 | Duke University | Phase 1 |
| Not Yet Recruiting | Efficacy and Safety Study of Essential Oil-Based Preparation Administered to COVID-19 Patients NCT06452069 | Biodex S.A | N/A |
| Unknown | NAC for Attenuation of COVID-19 Symptomatology NCT05074121 | Cambridge Health Alliance | Phase 2 |
| Recruiting | Passive Detection- SARS-CoV-2 (COVID-19) A&M Breathalyzer (PROTECT Kiosk) for Operational Medicine NCT06402318 | The Geneva Foundation | — |
| Recruiting | Evolution of Respiratory Function in Lung Transplant Patients With Moderate to Severe Covid-19 Infection NCT06490744 | University Hospital, Strasbourg, France | — |
| Completed | Posture and Pain Measurements in Post-COVID-19 NCT07005908 | Izmir Democracy University | — |
| Completed | Infection Watch Study NCT04623047 | Duke University | — |
| Completed | Pain, Physical Activity, Posture and Quality of Life in Post-COVID-19 Individuals With Idiopathic Scoliosis NCT06006897 | Izmir Democracy University | — |
| Active Not Recruiting | SARS-CoV-2/COVID-19 Study of Next Generation Non-Invasive Passive Detection Technologies NCT05765396 | The Geneva Foundation | — |
| Completed | Chest Mobility, Strength, Physical Activity and Quality of Life in Parkinson's Patients With Post-COVID-19 NCT06008444 | Izmir Democracy University | — |
| Unknown | Food Effects of GST-HG171 Tablets Combined With Ritonavir in Healthy Chinese Participants NCT06084507 | Fujian Akeylink Biotechnology Co., Ltd. | Phase 1 |
| Unknown | COVID-19 Vaccination Detoxification in LDL-C NCT05839236 | Yang I. Pachankis | Phase 1 |
| Recruiting | Multicenter Randomized Double-blind Placebo-controlled Study to Investigate Azvudine in Symptomatic Adults Wit NCT05689034 | Peking Union Medical College Hospital | Phase 2 / Phase 3 |
| Completed | Evaluation of the Labcorp COVID-19+Flu+RSV Test Home Collection Kit NCT06008457 | Sequenom, Inc. | — |
| Completed | A Randomized, Phase I Study of DNA Vaccine OC-007 as a Booster Dose of COVID-19 Vaccine NCT05685953 | Matti Sällberg | Phase 1 |
| Completed | COVID-19 Novel Molecular Point of Care Diagnostics Evaluation NCT06055218 | Foundation for Innovative New Diagnostics, Switzerland | — |
| Completed | Role of Vit-D Supplementation on BioNTech, Pfizer Vaccine Side Effect and Immunoglobulin G Response NCT05851313 | Sulaimani Polytechnic University | Phase 3 |
| Suspended | Safety and Effectiveness of VL-PX10 + VL-P22 Treatment on Pulmonary Fibrosis Secondary to Covid-19 NCT05387239 | Vitti Labs, LLC | Phase 2 |
| Recruiting | Trial of Venovenous ECMO to De-Sedate, Extubate and Mobilise in Hypoxic Respiratory Failure NCT05562505 | Australian and New Zealand Intensive Care Research Centre | N/A |
| Unknown | An Observational, Ambispective Cohort Study of Azvudine in the Treatment of Patients With COVID-19 Pneumonia NCT05621993 | Qianfoshan Hospital | — |
| Active Not Recruiting | Longitudinal At Home Smell Testing to Detect Infection by SARS-CoV-2 NCT05040659 | Massachusetts General Hospital | — |
| Recruiting | Phase 2/Phase 3 Study To Evaluate The Efficacy And Safety Of Ramatroban Along With The Standard Of Care In Sub NCT05706454 | KARE Biosciences | Phase 2 / Phase 3 |
| Unknown | Immunogenicity, Efficacy and Safety Trial of the Convacell Vaccine in Healthy Volunteers Aged 18 Years and Old NCT05726084 | St. Petersburg Research Institute of Vaccines and Sera | Phase 2 / Phase 3 |
| Withdrawn | Respiratory COVID-19: A Randomized, Sham-Controlled Study NCT05166915 | Aytu BioPharma, Inc. | N/A |
| Completed | COVID-19 Seroprevalence in Pregnant Women and Blood Donors NCT04893057 | Centre Hospitalier Universitaire de Besancon | — |
| Unknown | Low-field Magnetic Resonance Imaging in Pediatric Post Covid-19 NCT05445531 | University of Erlangen-Nürnberg Medical School | N/A |
| Unknown | Multifactorial Evaluation of COVID-19 Respiratory Reliquates NCT05607069 | University of Turin, Italy | — |
| Unknown | Evaluation of the Efficiency and Complications of the Consequtive Proning in Covid -19 ICU NCT05387356 | Kecioren Education and Training Hospital | — |
| Completed | Ketotifen and Indomethacin Combination Treatment Clinical Trial for COVID-19 NCT05007522 | Sen-Jam Pharmaceutical | Phase 3 |
| Unknown | Observational Study on the Use of Ivermectin as an Outpatient Treatment Option for COVID-19 NCT05045937 | Patrick Robinson | — |
| Withdrawn | In-patient COVID-19 Study of Intranasal Foralumab NCT04983446 | Tiziana Life Sciences LTD | Phase 2 |
| Completed | Novel Rapid POC Diagnostics for COVID-19 NCT05438589 | Foundation for Innovative New Diagnostics, Switzerland | — |
| Unknown | Phase III Study of BBV154 Intranasal Vaccine in Healthy Volunteers NCT05522335 | Bharat Biotech International Limited | Phase 3 |
| Unknown | HC-1119 Adjuvant Treatment for Hospitalized COVID-19 Patients NCT04986176 | Applied Biology, Inc. | Phase 3 |
| Unknown | PROlectin M, a Nucleocapsid TErminal GaleCTin Antagonist for COVID-19 NCT05096052 | Bioxytran Inc. | Phase 3 |
| Completed | ALACOVID Study for Vaccinated Subjects NCT05234346 | Vedic Lifesciences Pvt. Ltd. | N/A |
| Completed | Phase 3 Study to Evaluate Immunogenicity and Safety of BBV154 Booster Dose NCT05567471 | Bharat Biotech International Limited | Phase 3 |
| Completed | Evaluation of Dynamic Balance After Recovery From COVID 19 Disease NCT05813886 | October 6 University | — |
| Completed | Examination of The Effects of Telerehabilitation in Painful Healthcare Workers With and Without COVID-19 Infec NCT05000268 | Abant Izzet Baysal University | N/A |
| Completed | Association of Circulating ACE2 Levels With COVID-19 NCT05205707 | Jordan University Hospital | — |
| Recruiting | Respiratory Virus Metagenomics After COVID-19 NCT05126589 | Chinese University of Hong Kong | — |
| Completed | Photodynamic Therapy for COVID-19 Prevention NCT05184205 | Ondine Biomedical Inc. | N/A |
| Completed | Evaluation of Peripheral Muscle With Ultrassonografic of Critical Patients With Covid-19 NCT05055440 | University of Pernambuco | — |
| Unknown | Evaluation of Home Use COVID-19 Frequent Antigen Testing and Data Reporting NCT05884515 | IDX20 Inc | Phase 1 |
| Completed | Bifido- and Lactobacilli in Symptomatic Adult COVID-19 Outpatients NCT04907877 | Nordic Biotic Sp. z o.o. | N/A |
| Terminated | Cromolyn Sodium for Treatment of COVID-19 Pneumonia NCT05077917 | Texas Tech University Health Sciences Center, El Paso | Phase 3 |
| Terminated | Echinaforce COVID-19 Shedding Study NCT04999098 | A. Vogel AG | Phase 4 |
| Unknown | Insight Into the UAE Experience With Monoclonal Antibodies (Sotrovimab ) NCT05144178 | Emirates Health Services (EHS) | — |
| Unknown | Expression of Toll-like Receptors 3 , 7 and 9 in Peripheral Blood Mononuclear Cells of COVID-19 Patients NCT05089110 | Assiut University | — |
| Completed | A Study to Assess the Safety, Tolerability and Pharmacokinetics of Inhaled HH-120 Aerosol in Healthy Volunteer NCT05116865 | Huahui Health | Phase 1 |
| Completed | Insulin Regulation and Severity of Severe Acute Respiratory Syndrome COVID-19 Infection NCT05897528 | Arrowhead Regional Medical Center | — |
| Unknown | COVID-Like Illness Respiratory Pathogens. A Prospective Cohort on the COVID-19 Post-acute Condition NCT05047666 | Bernhard Nocht Institute for Tropical Medicine | — |
| Completed | Preventing Respiratory Viral Illness Invisibly NCT05084898 | Kenneth Rockwood | N/A |
| Unknown | Musculoskeletal Problems and Endurance in Healthcare Professionals With and Without COVID-19 NCT05075018 | Abant Izzet Baysal University | — |
| Unknown | AI Evaluation of COVID-19 Sounds (AI-EChOS) NCT05115097 | IRCCS San Raffaele | — |
| Completed | Cardiopulmonary Rehabilitation in Long COVID-19 Patients With Persistent Breathlessness and Fatigue NCT05035628 | Louis Bherer | 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 | Impact of Teeth Brushing in Ventilated COVID-19 Patients. NCT05575050 | University Hospital in Krakow | N/A |
| Unknown | Safety, Tolerability and Efficacy of S-1226 in Post-COVID-19 Subjects With Persistent Respiratory Symptoms. NCT04949386 | SolAeroMed Inc. | Phase 2 |
| Withdrawn | PREvent Viral Exposure and Transmission Study: a COVID-19 (SARS-CoV-2) PEP Study (PREVENT) NCT04842331 | Thirty Respiratory Limited | Phase 2 / Phase 3 |
| Unknown | Accelerating COVID-19 Clinical Recovery in the Outpatient Setting: Retrospective Analysis NCT05520944 | Dr. Ferrer BioPharma | — |
| Completed | Efficacy Evaluation of Shen Cao Gan Jiang Tang on Mild and Moderate COVID-19 Patients NCT05055427 | University of Medicine and Pharmacy at Ho Chi Minh City | Phase 2 / Phase 3 |
| Unknown | Reducing Hypoxia in Patients With Coronavirus Disease (COVID-19) Using Topotecan With Standard of Care NCT05083000 | National University Hospital, Singapore | Phase 1 |
| Unknown | COVID-19 Vaccine Hesitancy and Dental Faculty Staff Members in Egypt NCT05009043 | Mariam Ayman Amin Sharaf | — |
| Unknown | Efficacy of Respiratory Rehabilitation After COVID-19 Severe Infection NCT05307562 | Institut d'Investigació Biomèdica de Girona Dr. Josep Trueta | N/A |
| Unknown | A Proof-of-Concept Study Evaluating EOM613 in COVID-19 Infected Patients With Severe Symptoms NCT05212532 | EOM Pharmaceuticals | Phase 1 |
| Terminated | Lung Structure-Function In SurVivors of Mild and SEvere COVID-19 Infection: 129Xe MRI NCT05014516 | The Hospital for Sick Children | — |
| Unknown | CRISPR/Cas9-modified Human T Cell ( PD-1and ACE2 Knockout Engineered T Cells ) for Inducing Long-term Immunity NCT04990557 | Mahmoud Ramadan mohamed Elkazzaz | Phase 1 / Phase 2 |
| Completed | Universal Anti-Viral Vaccine for Healthy Elderly Adults NCT04441047 | Mirror Biologics, Inc. | Phase 1 / Phase 2 |
| Recruiting | Cardiac Magnetic Resonance Tissue Characterization in COVID-19 Survivors NCT05164744 | Weill Medical College of Cornell University | — |
| Unknown | Effect of SARS-CoV-2 Disease on Immune Responses, Disease Severity and Treatment Outcomes in Pulmonary Tubercu NCT04930978 | Tuberculosis Research Centre, India | — |
| Unknown | Protocol of Assistance to Patients With Covid-19 Submitted to Treatment With HD-tDCS NCT04844554 | Federal University of Paraíba | N/A |
| Completed | imPulse™ Una Infrasound-to-ultrasound E-stethoscope NCT04941209 | Level 42 AI, Inc. | — |
| Completed | Gene Polymorphism of IL17 and IL 23 NCT04948515 | Sohag University | — |
| Completed | BinaxNow COVID-19 IgG Rapid Test Device and Antibody Self Test NCT04959760 | Abbott Rapid Diagnostics Jena GmbH | N/A |
| Completed | Studying the Efficiency of the Natural Preparation Rutan in Children in the Treatment of COVID-19, ARVI NCT05862883 | Research Institute of Virology, Ministry of Health of the Republic of Uzbekistan | Phase 2 |
| Completed | Cognitive Impact in Patients With COVID-19 Infection NCT05293561 | Assiut University | — |
| Unknown | Safety and Effectiveness of an Immunobiological Drug in CoViD-19 NCT04913779 | Administracion Nacional de Laboratorios e Institutos de Salud Dr. Carlos G. Malbran | Phase 2 / Phase 3 |
| Completed | Effect of Kunamin in SARS-CoV-2 RT-PCR Positive Covid-19 Patients NCT05417997 | RAAS Nutritionals, LLC | Phase 3 |
| Completed | Standardized Olive Leaf Capsules; as a Co-therapy in the Treatment of COVID-19 Patients NCT04873349 | Shimaa M. Abdelgawad | N/A |
| Completed | Spa Rehabilitation, Antioxidant and Bioenergetic Supportive Treatment of Patients With Post-Covid-19 Syndrome NCT05178225 | Comenius University | N/A |
| Completed | Follow-up of Covid-19 Long Term Sequelae NCT05097677 | Azienda Ospedaliera Universitaria Integrata Verona | — |
| Recruiting | Dynamics of Markers of Infection and Inflammation in Hospitalized Coronavirus Disease 2019 (COVID-19) Patients NCT04887623 | University Hospital Hradec Kralove | — |
| Completed | Evaluation of Serial Ultrasound Screening in ICU COVID-19 Patients NCT05028244 | Hospital Universitari Vall d'Hebron Research Institute | N/A |
| Active Not Recruiting | Exercise and COVID-19 Viral T-cell Immunity NCT05019456 | University of Arizona | N/A |
| Unknown | Post COVID-19 Pulmonary Rehabilitation Program NCT04982042 | Centro Universitário de Anapolis | N/A |
| Completed | Respiratory Muscles Electromyography in Patients With Covid-19 NCT05572853 | University of Pernambuco | — |
| Completed | A Retrospective Study of COVID-19 Treatments NCT04949230 | ProgenaBiome | — |
| Completed | Effects of Body Position on Diaphragmatic Activity in Patients Requiring Noninvasive Ventilation for Acute Res NCT04904731 | Azienda Ospedaliera di Perugia | — |
| Completed | Evaluation of the Effectiveness of Therapy for Patients With Covid-19 Using Food Supplements Viusid + Asbrip NCT04980534 | Catalysis SL | N/A |
| Completed | Study of the Use of Nasal IFN-γ in Patients for the Prevention of Acute Respiratory Viral Infections, Icluding NCT05054114 | SPP Pharmaclon Ltd. | N/A |
| Completed | Respiratory Drive and Inspiratory Effort in COVID-19 Associated ARDS NCT06224010 | University of Turin, Italy | — |
| Completed | In Situ Simulation Training in Transferring Critically Ill COVID-19 Patients NCT05113823 | Indonesia University | N/A |
| Unknown | The CircumVent Project: A CPAP/O2 Helmet Solution for Non-Invasive Ventilation Among Patients With COVID-19 NCT04929691 | New York University | N/A |
| Completed | Residual Symptoms and the Quality of Life in Individuals Recovered From COVID-19 Infection: A Survey From Paki NCT05148676 | Aga Khan University | — |
| Completed | COVID-19 Morbidity in Healthcare Workers and Vitamin D Supplementation NCT05037253 | Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health | Phase 4 |
| Completed | Benefit of Expanded Surveillance of Nursing Homes During the COVID-19 Pandemic NCT04933981 | University of Cologne | — |
| Suspended | Xanthohumol as an Adjuvant Therapy in Critically Ill COVID-19 Patients NCT05463393 | Medical University of Lublin | EARLY_Phase 1 |
| Completed | Study to Verify the Effectiveness and Safety of Isothymol or Carvacrol Compound Against SARS-CoV-2 in COVID-19 NCT05445089 | Instituto Venezolano de Investigaciones Cientificas | Phase 2 / Phase 3 |
| Completed | Therapeutic Plasma Exchange Followed by Convalescent Plasma Transfusion in Severe and Critically Ill COVID-19 NCT04973488 | Novacescu Alexandru | N/A |
| Unknown | Cardiovascular Disease and Outcomes Among Patients With SARS-CoV-2 Infection (COVID-19) NCT05085262 | University Health Network, Toronto | — |
| Completed | An Open-label, Randomized, Parallel-arm Study Investigating the Efficacy and Safety of Intravenous Administrat NCT05262309 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | Phase 2 / Phase 3 |
| Completed | Study of the Use of the Ingaron in Volunteers for the Prevention of COVID-19 NCT05386446 | SPP Pharmaclon Ltd. | — |
| Completed | Study of the Use of the Drug Ingaron in Patients With COVID-19 NCT05386459 | SPP Pharmaclon Ltd. | — |
| Unknown | Severity of COVID-19 and Vitamin D Supplementation NCT05166005 | Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health | Phase 4 |
| Unknown | University Hospital of Ioannina COVID-19 (Coronavirus Disease 2019) Registry NCT05534074 | University Hospital, Ioannina | — |
| Completed | Posaconazole Prophylaxis for CAPA Prevention in Critically-Ill Patients NCT05065658 | Medical University of Graz | — |
| Completed | Post-COVID-19 Pneumo-hematocele NCT05067881 | Hospital General Ajusco Medio | — |
| Unknown | Use of Low-frequency Magnetic Fields in the Hybrid Treatment of COVID-19 Patients NCT05163613 | Medical University of Lodz | N/A |
| Completed | Oral Symptoms of COVID-19 Among Infected Medical Doctors NCT05697081 | Beni-Suef University | — |