CovidResearchTrials by Shray Alag


CovidResearchTrials Covid 19 Research using Clinical Trials (Home Page)


VESTA respiratorWiki

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


Correlated Drug Terms (3)


Name (Synonyms) Correlation
drug3317 lanadelumab Wiki 1.00
drug767 Conventional N95 respirator Wiki 1.00
drug3445 regular care Wiki 1.00

Correlated MeSH Terms (3)


Name (Synonyms) Correlation
D007239 Infection NIH 0.05
D045169 Severe Acute Respiratory Syndrome NIH 0.05
D018352 Coronavirus Infections NIH 0.04

Correlated HPO Terms (0)


Name (Synonyms) Correlation

There is one clinical trial.

Clinical Trials


1 Effectiveness of a Novel Respirator With Chitosan Nanoparticles to Reduce the Incidence of SARS-CoV-2 Infection in Healthcare Professionals: Randomized Controlled Trial (VESTA Trial)

The use of nanomaterials in facial respirators could decrease the permeability of particles and promote a biocidal effect compared to conventional respirators (N95) and, therefore, enhance the filtering power, aiming to mitigate harmful effects of bacteria and viruses. Chitosan is a natural cationic polymer derived from chitin, with important characteristics such as being biodegradable, biocompatible, non-toxic, and presenting antimicrobial activity. This polymer shows virucidal activity in several types of viruses, including other coronavirus serotypes, given the attractive factor of its cationic charge for negative charges. The effectiveness of a novel individual protection semi facial respirator (called VESTA) will be investigated, compared to a conventional N95 respirator. The respirators will be tested in healthcare professionals working in hospital environments and the effectiveness will be attributed to the lower incidence rate of infection by the SARS-CoV-2. The effectiveness of respirators will also be attributed to the ability to filter these viruses after use by healthcare professionals exposed to potentially contaminated environments. The study will be carried out in two stages: i) Pilot Randomized Clinical Trial with reduced sample and ii) Controlled Randomized Clinical Trial (RCT). This RCT will be conducted with healthcare professionals who have contact with environments/patients infected by SARS-CoV-2 in hospital sectors with greater vulnerability to infection (urgency, emergency and intensive care units). The pilot trial will be conducted initially with a group of fifty participants (n = 25 in each group) for initial investigation of the potential for efficacy with the use of the respirators (VESTA and conventional N95) in two sectors (emergency and ICU) of a Hospital. The RCT will consist of two parallel groups: (1) Experimental Group (GExp) that will use the novel respirator (VESTA) and (2) Control Group (CG) that will use the standard respirator (N95). Participants will be recruited from participating centers and will be accompanied by eight consecutive shifts (each shift lasting 6 to 12 hours, followed by approximately 36 hours of rest). Participants will be accompanied during 21 days, and will be assessed at baseline (T0), at the end of the 10th day (T1) and at the end of the 21st day (T2). The respirators will be assessed after the end of the 1st hospital shift for morphological characterization (virus quantity and inactivation).

NCT04490200 Covid19 SARS-CoV Infection Worker-Patient Transmission, Healthcare Device: VESTA respirator Device: Conventional N95 respirator
MeSH:Infection Coronavirus Infections Severe Acute Respiratory Syndrome

Primary Outcomes

Description: Number of professionals infected, confirmed by reverse-transcription polymerase chain reaction (RT-PCR)

Measure: Incidence of laboratory-confirmed COVID-19

Time: 21 days

Description: Electron microscopy technique will be used, to identify if there is viruses present (through its direct visualization and morphological recognition) and they are inactive. This assessment will occur after the end of the first hospital shift.

Measure: Ability of the filtering element to inactivate the SARS-Cov-2

Time: 24 hours

Secondary Outcomes

Description: 11-point Likert scale ranging from -5 ("extremely unsatisfied"), 0 ("neutral"), to 5 ("completely satisfied")

Measure: Usability and comfort of the respirator

Time: Assessments at T1 (day 10) and T2 (day 21)

Description: quantified based on the activities and procedures performed by the participants. Adherence will be measured by a self-report recorded in a diary, estimating the percentage of use referring to the total workhours.

Measure: Adherence to the use of the Respirator

Time: Assessments at the end of the first and second weeks of intervention

Description: Measured by the Job Stress Scale Questionnaire (17 questions composed by 4-point Likert scales)

Measure: Stress

Time: Change from Pre-Intervention (T0), compared to Post-Intervention (T2 - day 21)

Description: Measured by the Maslach Burnout Inventory

Measure: Burnout

Time: Change from Pre-Intervention (T0), compared to Post-Intervention (T2 - day 21)

Description: Measured by the Six-dimensional short form quality of life questionnaire (SF-6D), with scores ranging from 0 to 1 (in which 0 is equal to the worst health state and 1 is equal to the best health state).

Measure: Self-reported quality of life

Time: Change from Pre-Intervention (T0), compared to Post-Intervention (T2 - day 21)

Description: Measured by the Nordic Musculoskeletal Questionnaire, which assess the self-report of musculoskeletal symptoms in the last 12 months and last 7 days. Identification of areas of the body causing musculoskeletal problems in a body map (possible sites being neck, shoulders, upper back, elbows, low back, wrist/hands, hips/thighs, knees and ankles/feet).

Measure: Musculoskeletal discomfort

Time: Change from Pre-Intervention (T0), compared to Post-Intervention (T2 - day 21)

Description: Measured by a VAS-scale ranging from 0 to 10, being 0 the worst work ability and 10 the best work ability, considering the present time.

Measure: Work ability

Time: Change from Pre-Intervention (T0), compared to Post-Intervention (T2 - day 21)


No related HPO nodes (Using clinical trials)