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Placebo Controlled Trial to Evaluate Zinc for the Treatment of COVID-19 in the Outpatient Setting

A Randomized, Placebo-Controlled Study Evaluating the Efficacy of Zinc for the Treatment of COVID-19 in the Outpatient Setting

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04621461
Enrollment
3
Registered
2020-11-09
Start date
2020-12-20
Completion date
2021-02-08
Last updated
2021-02-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Corona Virus Infection

Keywords

COVID-19, Zinc

Brief summary

This is a randomized, double-blind, placebo-controlled trial to assess the efficacy of zinc in a higher risk COVID-19 positive outpatient population.

Detailed description

Zinc, a micronutrient, appears to have anti-viral properties with various mechanisms of action depending on the concentration Zinc supplementation has been reviewed extensively for use in the common cold, and has been shown to reduce the duration of symptoms. In-vitro studies have shown zinc can inhibit RNA-dependent RNA polymerase (RdRP) in coronavirus, which is typically a conserved region in the viral genome. In-vitro experiments have also shown that lung epithelium in a zinc depleted state can become susceptible to apoptosis and loss of barrier function, increasing permeability, which can lead to acute respiratory distress syndrome (ARDS). If a patient can travel to St. Francis Hospital they can have a COVID test on site at a designated St. Francis testing location. The COVID test will be resulted via a rapid Covid (Point of Care device) or at a local lab. Patients who are unable to travel to St. Francis Hospital or one of the outpatient practices, will be allowed to enroll remotely. Patients are eligible to enroll within 72 hours of a positive Covid-19 test result. Study medications will be mailed to the patient overnight after being enrolled.

Interventions

DIETARY_SUPPLEMENTZinc Sulfate 220 MG

220mg once daily for 5 days

DRUGPlacebo

Once daily for 5 days

Sponsors

St. Francis Hospital, New York
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Patients will be randomized via a randomization block. Only the research coordinator will know which group the patients belong to. Placebo pills given to the patient will be similar in size and shape to zinc.

Intervention model description

This is a randomized, double-blind, placebo-controlled trial to assess the efficacy of zinc in a higher risk COVID-19 positive outpatient population. Patients will randomized to zinc or placebo.

Eligibility

Sex/Gender
ALL
Age
30 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Able to read and understand informed consent. * High initial clinical suspicion by physician based on signs and symptoms (fever, cough, myalgias, fatigue, shortness of breath) followed by confirmation of COVID-19 diagnosis * Any gender * Age 60 years and older * Age 30-59 years with one or more of the following: * abnormal lung exam * abnormal oxygen saturation \<95% * abnormal Chest X-ray or chest CT * persistent fever \>100.4 degrees Fahrenheit * one of the following co-morbidities: hypertension, diabetes mellitus, history of coronary artery disease, chronic kidney disease (CKD), asthma, COPD, current or former smoker, or morbid obesity (Body Mass Index ≥35)

Exclusion criteria

* Severe COVID-19 requiring admission for inpatient treatment * Need for any oxygen supplementation * Need for mechanical ventilatory support * History of oxygen supplementation dependency * History of cancer with ongoing chemotherapy or radiation therapy * Known hypersensitivity to zinc * Severe renal disease: Glomerular Filtration Rate \<30ml/min

Design outcomes

Primary

MeasureTime frameDescription
Number of participants hospitalized and/or requiring repeat emergency room visits21 daysCOVID-19 related complications that require the participant to be hospitalized or have an emergency room visit
Number of participants admitted to the Intensive care unit (ICU)30 daysIf hospitalized, number of participants admitted to the ICU, and number of days in the ICU
Number of participants on a ventilator30 daysIf placed on ventilator, number of days on a ventilator

Secondary

MeasureTime frameDescription
All-cause mortalityUp to 30 daysTotal number of deaths in the cohort.
Time to resolution of COVID-19 symptomsEvaluated at day 2, 6, day 14, and day 21Time at which the patient is completely symptom free.
Severity of symptomsEvaluated at day 2, 6, day 14, and day 21Scored by the participant for feverishness, sore throat, cough, shortness of breath, myalgias. (0 =none; 1 = mild; 2 = moderate; 3 = severe)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026