CovidResearchTrials by Shray Alag


CovidResearchTrials Covid 19 Research using Clinical Trials (Home Page)


Vitamin DWiki

Developed by Shray Alag
Clinical Trial MeSH HPO Drug Gene SNP Protein Mutation


Correlated Drug Terms (14)


Name (Synonyms) Correlation
drug1018 Guided online support program Wiki 0.38
drug1015 Group1 Wiki 0.38
drug1551 NG test Wiki 0.38
drug220 Aspirin 81 mg Wiki 0.38
drug1044 Helmet non-invasive ventilation (NIV) Wiki 0.38
drug677 Covid-19 Antibody testing (IgG and IgM) Wiki 0.38
drug2220 Self-questionnary Wiki 0.38
drug2676 WHO recommendations (waiting condition) Wiki 0.38
drug2715 Zinc Wiki 0.31
drug387 Blood test Wiki 0.27
drug2662 Vitamin C Wiki 0.23
drug1086 Hydroxychloroquine Wiki 0.11
drug262 Azithromycin Wiki 0.06
drug1822 Placebo Wiki 0.04

Correlated MeSH Terms (6)


Name (Synonyms) Correlation
D004211 Disseminated Intravascular Coagulation NIH 0.19
D014808 Vitamin D Deficiency NIH 0.17
D018352 Coronavirus Infections NIH 0.08
D045169 Severe Acute Respiratory Syndrome NIH 0.08
D003141 Communicable Diseases NIH 0.06
D007239 Infection NIH 0.06

Correlated HPO Terms (2)


Name (Synonyms) Correlation
HP:0005521 Disseminated intravascular coagulation HPO 0.19
HP:0100512 Low levels of vitamin D HPO 0.17

There are 7 clinical trials

Clinical Trials


1 Effect of Vitamin D Administration on Prevention and Treatment of Mild Forms of Suspected Covid-19

The new outbreak of the SARS-CoV-2 coronavirus is causing an important pandemic affecting a large number of people all-over the world. Vitamin D is a hormone precursor produced by our own body with the help of sunlight which has an important role on adaptive immunity and cellular differentiation, maturation and proliferation of several immune cells. Reduced levels of vitamin D in calves were positioned as the main cause of bovine coronavirus infection in the past. Therefore, it seems plausible that the use of vitamin D as a nutritional ergogenic aid could be a potential intervention to fight against COVID-19 infected patients which remain asymptomatic or which have non-severe and severe symptoms. This study aims to investigate whether the use of vitamin D as an immune modulator agent induces significant improvements of health status and outcomes in non-severe symptomatic patients infected with COVID-19 as well as preventing COVID-19 health deterioration. We hypothesize that vitamin D will significantly improve hard endpoints related to COVID-19 deleterious consequences compared with a usual care control group.

NCT04334005 Patients Infected With COVID-19 Dietary Supplement: Vitamin D

Primary Outcomes

Measure: Composite of cumulative death (i.e. mortality) for all causes and for specific causes.

Time: Through study completion, an average of 10 weeks

Secondary Outcomes

Measure: Necessity of invasive assisted ventilation

Time: Through study completion, an average of 10 weeks

Measure: Necessity of non-invasive assisted ventilation

Time: Through study completion, an average of 10 weeks

Measure: Intensive care unit admission

Time: Through study completion, an average of 10 weeks

Measure: Post-anesthesia care unit admission

Time: Through study completion, an average of 10 weeks

Measure: Hospital admission

Time: Through study completion, an average of 10 weeks

Measure: Medical consultation

Time: Through study completion, an average of 10 weeks

Measure: Home care and isolation time

Time: Through study completion, an average of 10 weeks

Measure: Bed rest time

Time: Through study completion, an average of 10 weeks

Measure: symptoms' duration (i.e. cough, fever, nasal congestion, gastrointestinal symptoms, fatigue, anosmia, ageusia, diarrhea or alternative signs of COVID-19)

Time: Through study completion, an average of 10 weeks

Description: It will be measure by questionnaire

Measure: Subjective perception of recovery

Time: Through study completion, an average of 10 weeks

2 A Randomized, Double-Blind, Placebo-Controlled Phase IIa Study of Quintuple Therapy to Treat COVID-19 Infection

This is a Phase II interventional study will test the efficacy of quintuple therapy (Hydroxychloroquine, Azithromycin, Vitamin C, Vitamin D, and Zinc) in the treatment of patients with COVID-19 infection).

NCT04334512 COVID-19 Corona Virus Infection Coronavirus-19 Sars-CoV2 Drug: Hydroxychloroquine Drug: Azithromycin Dietary Supplement: Vitamin C Dietary Supplement: Vitamin D Dietary Supplement: Zinc
MeSH:Infection Communicable Diseases Coronavirus Infections Severe Acute Respiratory Syndrome

Primary Outcomes

Description: Number of days from COVID-19 diagnosis to recovery via RT-PCR

Measure: The rate of recovery of mild or moderate COVID-19 in patients using Quintuple Therapy

Time: 12 weeks

Description: Reduction and/or progression of symptomatic days, reduction of symptom severity

Measure: Reduction or Progression of Symptomatic Days

Time: 12 weeks

Description: Assess the symptom response to study therapy as measured by the survey in the EDC

Measure: Assess the safety of Quintuple Therapy

Time: 12 weeks

Description: Pulse from baseline to 12 weeks

Measure: Assess the safety of Quintuple Therapy via pulse

Time: 12 weeks

Description: Oxygen saturation from baseline to 12 weeks

Measure: Assess the safety of Quintuple Therapy via oxygen saturation

Time: 12 weeks

Description: EKG response from baseline to 12 weeks

Measure: Assess the safety of Quintuple Therapy via EKG

Time: 12 weeks

Description: Assess Adverse Events and Serious Adverse Events due to Quintuple Therapy

Measure: Assess Tolerability of Quintuple Therapy

Time: 12 weeks

3 A Randomized, Double-Blind, Placebo-Controlled Phase IIa Study of Hydroxychloroquine, Vitamin C, Vitamin D, and Zinc for the Prevention of COVID-19 Infection

This is a Phase II interventional study testing whether treatment with hydroxychloroquine, Vitamin C, Vitamin D, and Zinc can prevent symptoms of COVID-19

NCT04335084 COVID-19 Coronavirus Infection Sars-CoV2 Corona Virus Infection COVID Coronavirus Coronavirus-19 Coronavirus 19 Drug: Hydroxychloroquine Dietary Supplement: Vitamin C Dietary Supplement: Vitamin D Dietary Supplement: Zinc
MeSH:Infection Communicable Diseases Coronavirus Infections Severe Acute Respiratory Syndrome

Primary Outcomes

Description: Any symptoms of COVID-19 will be recorded in a daily diary. Symptoms (including fever measured in degrees Fahrenheit, dry cough, productive cough, difficulty speaking, wheezing, dry mouth, headache, chest tightness, difficulty with exertion, shortness of breath, sore throat, malaise, and diarrhea) will be rated as not present, mild, moderate, or severe.

Measure: Prevention of COVID-19 symptoms as recorded in a daily diary

Time: 24 weeks

Description: To assess the presence or absence of side effects (graded 1-5), and whether they are tolerable (grade 1-2). AE and SAE will be recorded.

Measure: Safety as determined by presence or absence of Adverse Events and Serious Adverse Events

Time: 24 weeks

4 The LEAD COVID-19 Trial: Low-risk, Early Aspirin and Vitamin D to Reduce COVID-19 Hospitalizations

Although the novel SARS-CoV-2 virus (COVD-19) is classified as an acute respiratory infection, emerging data show that morbidity and mortality are driven by disseminated intravascular coagulopathy. Untreated CAC leads to microangiopathic thromboses, causing multiple systems organ failure and consuming enormous healthcare resources. Identifying strategies to prevent CAC are therefore crucial to reducing COVID-19 hospitalization rates. The pathogenesis of CAC is unknown, but there are major overlaps between severe COVID-19 and vitamin D insufficiency (VDI). We hypothesize that VDI is a major underlying contributor to CAC. Preliminary data from severe COVID-19 patients in New Orleans support this hypothesis. The purpose of the proposed multi-center, prospective, randomized controlled trial is to test the hypothesis that low-risk, early treatment with aspirin and vitamin D in COVID-19 can mitigate the prothrombotic state and reduce hospitalization rates.

NCT04363840 COVID Vitamin D Deficiency Coagulopathy Disseminated Intravascular Coagulation Drug: Aspirin 81 mg Dietary Supplement: Vitamin D
MeSH:Disseminated Intravascular Coagulation Vitamin D Deficiency
HPO:Disseminated intravascular coagulation Low levels of vitamin D

Primary Outcomes

Description: Hospitalization for COVID-19 symptoms

Measure: Hospitalization

Time: 2 weeks

5 Randomized, Double-Blind, Controlled Trial of Hydroxychloroquine vs Placebo as Post-Exposure Prophylaxis Against COVID-19 Infection

This is a prospective, double-blind, randomized, placebo-controlled study in two distinct cohorts to evaluate the efficacy and safety of hydroxychloroquine in the prevention of COVID-19 infection.

NCT04372017 COVID-19 SARS-CoV 2 Drug: Hydroxychloroquine Dietary Supplement: Vitamin D
MeSH:Infection

Primary Outcomes

Description: Determine whether post-exposure prophylaxis with hydroxychloroquine can prevent COVID-19 in healthcare workers who have been exposed to a known case of COVID-19.

Measure: Cohort A: Percentage of COVID-19 exposed healthcare workers treated with hydroxychloroquine with a positive COVID-19 test.

Time: At enrollment completion outcome 1 will be analyzed.

Description: Determine whether post-exposure prophylaxis with hydroxychloroquine can prevent COVID-19 in high-risk individuals who have been exposed to a known case of COVID-19.

Measure: Cohort B: Percentage of COVID-19 exposed high-risk individuals treated with hydroxychloroquine with a positive COVID-19 test.

Time: At enrollment completion outcome 2 will be analyzed.

6 Randomized Controlled Trial of High Dose of Vitamin D as Compared With Placebo to Prevent Complications Among COVID-19 Patients

The recent inception of the coronavirus SARS-CoV-2, responsible for the coronavirus disease (COVID-19), has caused thousands of deaths globally. The most frequently reported complications among COVID-19 patients are from respiratory involvement. Vitamin D has immunomodulatory effects that could protect against COVID-19 infection. Indeed, there is good evidence from randomized clinical trials suggesting that high doses of vitamin D administered during cold seasons prevent viral respiratory infections in at risk individual, and more recently, observational studies suggested that the mortality rate from COVID-19 is inversely correlated with levels of serum 25(OH)vitamin D. The hypothesis of the study is that a high dose of vitamin D given orally to patients admitted to the hospital for COVID-19 will prevent the occurrence of respiratory deragement and other adverse clinical events. To evaluate the aforementioned hypothesis, a randomized, controlled, double-blind, clinical trial comparing a 500.000 UI dose of vitamin D versus placebo among COVID-19 patients at moderate risk, requiring hospitalization but without requirements of critical care at admission was designed. The intervention will be one dose of 500.000 UI given orally or matching placebo. The trial has a sequential design with two steps: - The first step, projected to include 200 patients, will assess the effects of the intervention on the respiratory SOFA; and - If there is a detectable effects, the second step, projected to include 1265 patients, will assess the effects on a combined event that includes need of high dose of oxygen or mechanical ventilation. All study outcomes will be measured during the index hospitalization.

NCT04411446 COVID Drug: Vitamin D Drug: Placebo

Primary Outcomes

Description: Is the respiratory component of the sequential organ failure assessment score (SOFA score). It is a 4 points scale, each point indicate a deeper respiratory impairment. The score is based on the relationship between the arterial pressure of oxygen (PaO2) and inspired fraction of oxygen (FiO2), as the ratio of both (PaFi). In the cases were arterial blood gas are not measured, the pulse oximetry will be used instead. The respiratory SOFA is as follows: 1: PaO2/FiO2 >=300; 2: PaO2/FiO2 >=200 and <300; 3: PaO2/FiO2 >=100 and <200; 4: PaO2/FiO2 <300. The minimum respiratory SOFA score will be record on daily basis during first week or to death or discharge, whichever occur first. This outcome is the primary outcome of the first study phase.

Measure: Respiratory SOFA.

Time: One week

Description: The start of oxygen supplementation at FiO2 >40% or the initiation of invasive through orotracheal intubation) or non-invasive ventilation (Continuous positive airway pressure or Bilevel positive airway ventilation). This outcome will be recorded during hospitalization to 30 days, the death or discharge, whichever occur first. This is the primary outcome of the second study phase.

Measure: Need of a high dose of oxygen or mechanical ventilation.

Time: 30 days

Secondary Outcomes

Description: Difference between the oxygen saturation at study entry and the lowest oxygen saturation measured during the first week, the death or discharge, whichever occur first. The oxygen saturation will be measured by pulse oximetry using commercially available devices.

Measure: Change in oxygen saturation.

Time: One week

Description: Oxygen saturation equal or less than 90% in any moment during the hospitalization. This outcome will be measured by pulse oximetry using commercially available devices. The outcome will be measured during the first week, the death or hospital discharge, whichever occur first.

Measure: Oxygen desaturation.

Time: One week

Description: The difference between the Quick SOFA score at study entry and the highest value recorded during the hospitalization. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Change in Quick SOFA score.

Time: 30 days.

Description: Myocardial infarction is defined as suspicious symptoms with new Q waves in the EKG and enzymatic elevations compatible with the Fourth MI Definition. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Myocardial infarction.

Time: 30 days

Description: Stroke is defined as a focal neurological loss lasting >24 hs as reported by treating physician. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Stroke.

Time: 30 days

Description: Acute kidney injury is defined as an increase of at least 50% in serum creatinine levels (as compared with any previous value during the hospitalization). The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Acute kidney injury.

Time: 30 days

Description: Pulmonary thromboembolism is defined as the presence of suspicious symptoms (i.e. dyspnea) confirmed with objective evidence of a thrombus in the pulmonary tree by CT or MRI or Pulmonary Angiography. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Pulmonary thromboembolism.

Time: 30 days

Description: Combined outcome of the aforementioned events, Stroke is defined as a focal neurological loss lasting >24 hs as reported by treating physician. Myocardial infarction is defined as suspicious symptoms with new Q waves in the EKG and enzymatic elevations compatible with the Fourth MI Definition. Pulmonary thromboembolism is defined as the presence of suspicious symptoms (i.e. dyspnea) confirmed with objective evidence of a thrombus in the pulmonary tree by CT or MRI or Pulmonary Angiography. Acute kidney injury is defined as an increase of at least 50% in serum creatinine levels (as compared with any previous value during the hospitalization). The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Combined endpoint (stroke, myocardial infarction, acute kidney injury and pulmonary thromboembolism.

Time: 30 days

Description: Admission to Intensive Care Unit due to clinical deterioration as judged by the treating physician. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Admission to ICU.

Time: 30 days

Description: The start of mechanical ventilation invasive during the hospitalization until 30 days, the death or discharge whichever occur first.

Measure: Invasive Mechanical Ventilation.

Time: 30 days

Description: Total duration of initial hospital stay in days. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first. In the cases with hospital stays longer than 30 days, it will considered as 30 days.

Measure: Hospital Length of Stay.

Time: 30 days.

Description: Total duration of initial ICU stay in days. The outcome will be measured during the hospitalization until 30 days, the death or discharge whichever occur first. In the cases with ICU stays longer than 30 days, it will considered as 30 days.

Measure: ICU length of stay.

Time: 30 days

Description: Death of any cause during the hospitalization until 30 days or discharge whichever occur first.

Measure: Death

Time: 30 days.

7 Vitamin D Supplementation in Patients With COVID-19: A Randomized, Double-blind, Placebo-controlled Trial

Coronavirus disease 2019 (COVID-19) was declared an emergency public health problem by the World Health Organization (WHO) in March 2020. Since then, several initiatives by the medical and scientific community have sought alternatives to treat infected individuals, as well as identifying risk or protective factors for the contamination and prognosis of patients. In this perspective, vitamin D supplementation can improve some important outcomes in critically ill patients, being considered a potent immunomodulatory agent. Vitamin D deficiency is a common outcome in critically ill patients, thus making it a modifiable risk factor with great potential for reducing hospital stay and intensive care and mortality. The investigators speculate that vitamin D supplementation could have therapeutic effects in patients with COVID-19.

NCT04449718 COVID-19 Dietary Supplement: Vitamin D Dietary Supplement: Placebo

Primary Outcomes

Description: total number of days that patient remained hospitalized

Measure: Length of hospitalization

Time: From date of randomization until the date of hospital discharge or death, which is usually less than 1 month

Secondary Outcomes

Description: number of patients that died

Measure: Mortality

Time: From date of randomization until the date of hospital discharge or death, which is usually less than 1 month

Description: total number of days that patient remained in ICU

Measure: Number of cases admitted to Intensive Care Unit (ICU)

Time: From date of randomization until the date of hospital discharge or death, which is usually less than 1 month

Description: total number of days that patient remained in mechanic ventilator

Measure: Length of use of mechanic ventilator

Time: From date of randomization until the date of hospital discharge or death, which is usually less than 1 month

Measure: Number and severity of symptoms

Time: From date of randomization until the date of hospital discharge or death, which is usually less than 1 month

Description: C-reactive protein, IL-1alpha (pg/ml), IL-1beta (pg/ml), IL-6 (pg/ml), TNF-alpha (pg/ml), IL-1ra (pg/ml), IL-10 (pg/ml) concentration in the serum

Measure: Inflammatory markers

Time: Baseline, 14 days after hospitalization and at the moment of hospital discharge or death (usually less than 1 month)

Description: serum concentration

Measure: C-reactive protein

Time: Baseline, 14 days after hospitalization and at the moment of hospital discharge or death (usually less than 1 month)

Description: serum concentration

Measure: Vitamin D

Time: Baseline, 14 days after hospitalization and at the moment of hospital discharge or death (usually less than 1 month)

Description: serum concentration

Measure: Creatinine

Time: Baseline, 14 days after hospitalization and at the moment of hospital discharge or death (usually less than 1 month)

Description: serum concentration

Measure: Calcium

Time: Baseline, 14 days after hospitalization and at the moment of hospital discharge or death (usually less than 1 month)

Description: Baecke questionnaire (higher scores mean a higher physical activity level)

Measure: Physical activity

Time: Baseline


Related HPO nodes (Using clinical trials)