Clinical Trials Logo

Clinical Trial Summary

Vitamin D is a secosteroid hormone produced by the skin during Summer exposure to UVB rays. Hypovitaminosis D is common in Winter (October to March) at Northern latitudes above 20 degrees North, and from April to September at Southern latitudes beyond 20 degrees below the equator. In the past, coronaviruses and influenza viruses have exhibited very high seasonality, with outbreaks occurring preferentially during the Winter. The Covid-19 pandemic is indeed more severe above Winter latitudes of 20 degrees, while it remains until now less severe in the Southern hemisphere, with a much lower number of deaths. Preclinical research suggests that the SARS-Cov-2 virus enters cells via the angiotensin converting enzyme 2 (ACE2). Coronavirus viral replication downregulates ACE2, thereby dysregulating the renin-angiotensin system (RAS) and leading to a cytokine storm in the host, causing acute respiratory distress syndrome (ARDS). Research also shows that vitamin D plays a role in balancing RAS and in reducing lung damage. On the contrary, chronic hypovitaminosis D induces pulmonary fibrosis through activation of RAS. Similarly, hypovitaminosis D has been strongly associated in the literature with ARDS, as well as with a pejorative vital prognosis in resuscitation but also in geriatric units, and with various comorbidities associated to deaths during SARS-Cov-2 infections. Conversely, vitamin D supplementation has been reported to increase immunity and to reduce inflammatory responses and the risk of acute respiratory tract infections. High-dose oral vitamin D3 supplementation has been shown to decrease short-term mortality in resuscitation patients with severe hypovitaminosis D (17% absolute risk reduction). It is considered safe to take oral vitamin D supplementation at doses up to 10,000 IU/day for short periods, particularly in older adults, i.e. a population that is mostly affected by hypovitaminosis D and who should receive at least 1,500 IU of vitamin D daily to ensure satisfactory vitamin D status. Vitamin D supplementation is mentioned as a potentially interesting treatment for SARS-Cov-2 infection but on a scientific basis with a low level of evidence until now. We hypothesize that high-dose vitamin D supplementation improves the prognosis of older patients diagnosed with COVID-19 compared to a standard dose of vitamin D.


Clinical Trial Description

• Inclusion visit A clinical examination is carried out. Social-demographic measures, health history, clinical examination measures (including OSCI score) and biological measures are collected. Randomization is conducted on the day of the inclusion visit. The ZYMAD® 400,000 IU (2 vials of 200,000 IU) or 50,000 IU (1 vial of 50,000 IU) treatment is given to the patient. - Visit at day 7 A blood test is carried out by a nurse to determine the serum 25-OHD, creatrinine, albumine and calcium concentrations. - Visit at day 14 A visit or telephone call allows recording the onset of clinical events of interest. The drugs received as part of the usual treatment during the last 14 days are collected. - Visit at day 28 A visit or telephone call allows recording the onset of clinical events of interest. The drugs received as part of the usual treatment during the last 14 days are collected. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04344041
Study type Interventional
Source University Hospital, Angers
Contact
Status Completed
Phase Phase 3
Start date April 15, 2020
Completion date January 14, 2021

See also
  Status Clinical Trial Phase
Completed NCT05065827 - Lung Ultrasound Findings in Patients With COVID-19 in a UK ED
Recruiting NCT05359770 - Association of Inspiratory Muscle Training With HD-tDCS for Assistance to Patients With Long Covid-19 N/A
Completed NCT04515147 - A Dose-Confirmation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVID-19 Phase 2
Not yet recruiting NCT06025812 - Clinical Study of Omicron BA.4/5-Delta Strain Recombinant Novel Coronavirus Protein Vaccine (CHO Cells) N/A
Recruiting NCT05289115 - Protocol for Assistance to Patients With Long Covid-19 Undergoing Treatment With HD-tDCS N/A
Completed NCT04779138 - Increasing Vaccine Uptake in Underresourced Public Housing Areas N/A
Completed NCT04953078 - A Study to Evaluate Safety, Tolerability, and Reactogenicity of an RBD-Fc-based Vaccine to Prevent COVID-19 Phase 1
Not yet recruiting NCT05868239 - Impact of Aerosol Box Use During Cardiopulmonary Arrest: A Multicenter Study N/A
Completed NCT04690413 - NOWDx Test for the Detection of Antibodies to COVID-19 N/A
Completed NCT04818164 - Prone Position Improves End-Expiratory Lung Volumes in COVID-19 Acute Respiratory Distress Syndrome
Terminated NCT04530448 - Coronavirus Induced Acute Kidney Injury: Prevention Using Urine Alkalinization Phase 4
Completed NCT04572399 - UVA Light Device to Treat COVID-19 N/A
Recruiting NCT04610567 - Treatment of Patients With Mild Coronavirus-19 (COVID-19) Disease With Methotrexate Associated to LDL Like Nanoparticles (Nano-COVID19) Phase 1/Phase 2
Recruiting NCT04772170 - Observational Digital Biomarker Discovery in Respiratory Virus Challenge Studies
Recruiting NCT04581954 - Inflammatory Signal Inhibitors for COVID-19 (MATIS) Phase 1/Phase 2
Completed NCT04405934 - COG-UK Project Hospital-Onset COVID-19 Infections Study N/A
Enrolling by invitation NCT04484025 - SPI-1005 Treatment in Moderate COVID-19 Patients Phase 2
Completed NCT05572840 - Wear Your Mask, Wash Your Hands, Don't Get COVID-19 N/A
Withdrawn NCT04838847 - A Study to Evaluate the Immunogenicity and Safety of the SARS-CoV-2 mRNA Vaccine CVnCoV in Elderly Adults Compared to Younger Adults for COVID-19 Phase 3
Terminated NCT04371978 - Efficacy and Safety of Dipeptidyl Peptidase-4 Inhibitors in Diabetic Patients With Established COVID-19 Phase 3