Healthy Volunteers Clinical Trial
Official title:
A Randomized Controlled Clinical Trial of Oral Vitamin D2 for the Prevention of COVID-19
A total of 218 participants will be included in this study, and will be randomly assigned 1:1 to the group taking vitamin D2 and the group not taking vitamin D2. Participants in the group taking vitamin D2 orally will receive 200,000 IU of vitamin D2 on the first day of the trial, and again two weeks later (200,000 IU) . The group that will not receive vitamin D2 will not receive any intervention. The whole trial will laste four weeks.
This study is a randomized controlled multicenter clinical trial. Participants who meet the inclusion criteria can be included in this trial after signing informed consent. A total of 218 participants will be included in this study, and will be randomly assigned 1:1 to the group taking vitamin D2 and the group not taking vitamin D2. Participants in the group taking vitamin D2 orally will receive 200,000 IU of vitamin D2 on the first day of the trial, and again two weeks later (200,000 IU) . The group that will not receive vitamin D2 will not receive any intervention. The whole trial will laste four weeks. Throughout the trial, participants' nucleic acid or antigen results, 25(OH)D concentrations, etc., need to be tested. ;
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT05029518 -
3-Way Crossover Study to Compare the PK (Pharmokinetics) and to Evaluate the Effect of Food on the Bioavailability
|
Phase 1 | |
Completed |
NCT05001152 -
Taste Assessment of Ozanimod
|
Phase 1 | |
Completed |
NCT04493255 -
A Study to Determine the Metabolism and Elimination of [14C]E7090 in Healthy Male Participants
|
Phase 1 | |
Completed |
NCT03457649 -
IV Dose Study to Assess the Safety, Tolerability, PK, PD and Immunogenicity of ARGX-113 in Healthy Volunteers
|
Phase 1 | |
Completed |
NCT00995891 -
Collection of Blood, Bone Marrow, and Buccal Mucosa Samples From Healthy Volunteers for Center for Human Immunology, Autoimmunity, and Inflammatory Diseases (CHI) Laboratory Research Studies
|
||
Completed |
NCT05043766 -
Evaluation of Oral PF614 Relative to OxyContin
|
Phase 1 | |
Completed |
NCT05050318 -
Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2021-2022 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively
|
Phase 4 | |
Completed |
NCT04466748 -
A Multiple Ascending Dose Pharmacology Study of Anaprazole in Healthy Chinese Subjects
|
Phase 1 | |
Completed |
NCT00746733 -
Vyvanse and Adderall XR Given Alone and in Combination With Prilosec OTC
|
Phase 1 | |
Recruiting |
NCT05929651 -
Study of Immunogenicity and Safety of MenQuadfi® as a Booster Vaccine in Toddlers 12 to 23 Months, Regardless of the Quadrivalent Meningococcal Conjugate Vaccine Used for Priming in Infancy
|
Phase 4 | |
Completed |
NCT05954039 -
Evaluation of the Efficacy of a Dietary Supplement on Hair Loss and Hair Aspect
|
N/A | |
Completed |
NCT05045716 -
A Study of Subcutaneous Lecanemab in Healthy Participants
|
Phase 1 | |
Active, not recruiting |
NCT02747927 -
Efficacy, Safety and Immunogenicity of Takeda's Tetravalent Dengue Vaccine (TDV) in Healthy Children
|
Phase 3 | |
Completed |
NCT05533801 -
A Study to Demonstrate the Bioequivalence of Lecanemab Supplied in Vials and a Single-Use Auto-Injector (AI) in Healthy Participants
|
Phase 1 | |
Not yet recruiting |
NCT03931369 -
Adaptation of Thirst to a Single Administration of Tolvaptan (TOLVATHIRST)
|
Phase 2 | |
Completed |
NCT03279146 -
A Single Dose Study Evaluating PK of TXL Oral Formulations in Healthy Subjects
|
Phase 1 | |
Completed |
NCT06027437 -
A Study to Assess the Relative Biological Availability and the Effect of Food on the Drug Levels of Danicamtiv in Healthy Adult Participants
|
Phase 1 | |
Recruiting |
NCT05619874 -
Effects of Two Virtual HIFCT Programs in Adults With Abdominal Obesity
|
N/A | |
Completed |
NCT05553418 -
Investigational On-body Injector Clinical Study
|
N/A | |
Completed |
NCT04092712 -
Study Evaluating Pharmacokinetics and Mass Balance of [14C]-CTP-543 in Healthy Adult Male Volunteers
|
Phase 1 |