Gargling and Nasal Rinses to Reduce Oro- and Nasopharyngeal Viral Load in Patients With COVID-19
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ClinicalTrials.gov Identifier: NCT04344236 |
Recruitment Status :
Withdrawn
(This study was withdrawn by the institution to minimize risk to patients and staff with regard to COVID-19.)
First Posted : April 14, 2020
Last Update Posted : May 10, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
COVID-19 | Drug: Saline oral/nasal rinse Drug: 0.5% Povidone/Iodine oral/nasal rinse Drug: 0.12% Chlorhexidine oral/nasal rinse | Phase 2 |
COVID-19 has emerged as a worldwide pandemic and there is a strong need for identification of any measures that can be used to treat this illness or reduce its transmission from person to person. Povidone-iodine has been shown to have virucidal properties against multiple viruses including against the virus that causes SARS which is very similar in makeup to the virus causing COVID-19.
The investigators hypothesize that 4x daily use of oral gargles and nasal rinses using a povidone iodine solution will help to reduce the viral load in the nasopharynx and oropharynx in patients who are COVID-19+. If this hypothesis is shown to be true this could potentially have an impact on time to recovery of clinical symptoms as well as reduce shedding of the virus by infected patients. A time course of 7 days was chosen in order to recognize a trend in the viral load over time for patients receiving each of the interventions. Chlorhexidine gluconate and saline rinses were chosen as additional treatment arms as these are frequently used for oral and nasal hygiene and their role in affecting viral load is currently unknown.
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 0 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Randomized controlled open label trial, parallel design |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase II, Randomized, Open-label, Single-institution Study of the Effects of Povidone Iodine Oral Gargles and Nasal Rinses on Viral Load in Patients With COVID-19 |
Actual Study Start Date : | April 9, 2020 |
Estimated Primary Completion Date : | May 1, 2020 |
Estimated Study Completion Date : | May 9, 2020 |

Arm | Intervention/treatment |
---|---|
No Intervention: Control | |
Experimental: Saline oral/nasal rinse |
Drug: Saline oral/nasal rinse
5 cc of nasal rinses total for both nostrils + 20 cc of oral gargles, 4 times a day, for 7 days. |
Experimental: 0.5% Povidone/Iodine oral/nasal rinse |
Drug: 0.5% Povidone/Iodine oral/nasal rinse
5 cc of nasal rinses total for both nostrils + 20 cc of oral gargles, 4 times a day, for 7 days. |
Experimental: 0.12% Chlorhexidine oral/nasal rinse |
Drug: 0.12% Chlorhexidine oral/nasal rinse
5 cc of nasal rinses total for both nostrils + 20 cc of oral gargles, 4 times a day, for 7 days. |
- Viral load (and/or cycle time to PCR as a proxy for quantitative viral load) in the nasopharynx and oropharynx [ Time Frame: 7 days ]nasopharyngeal swab for viral PCR will be taken at the end of each day for 7 days
- Oxygen requirement of the patient [ Time Frame: 7 days ]Recorded daily
- Oxygen saturation of the patient [ Time Frame: 7 days ]Recorded daily

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Ages Eligible for Study: | 18 Years to 79 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Positive test for COVID-19
- Age 18-79 years
- Willing and able to perform oral gargles and nasal rinses four times daily
Exclusion Criteria
- Requiring mechanical ventilation
- Unable or unwilling to perform oral gargles and nasal rinses four times daily
- History of chronic upper respiratory tract disease
- Known iodine allergy
- History of thyroid disease

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04344236
United States, New York | |
NYU Langone Health | |
New York, New York, United States, 10016 |
Principal Investigator: | Scott Rickert, MD | NYU Langone Health |
Responsible Party: | NYU Langone Health |
ClinicalTrials.gov Identifier: | NCT04344236 |
Other Study ID Numbers: |
s20-00444 |
First Posted: | April 14, 2020 Key Record Dates |
Last Update Posted: | May 10, 2021 |
Last Verified: | May 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | The de-identified participant data from the final research dataset used in the published manuscript will be shared upon reasonable request beginning 9 months and ending 36 months following article publication or as required by a condition of awards and agreements supporting the research provided the investigator who proposes to use the data executes a data use agreement with NYU Langone Health. Requests may be directed to: [contact information for PI or designee]. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research. |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) |
Time Frame: | Beginning 9 months and ending 36 months following article publication or as required by a condition of awards and agreements supporting the research. |
Access Criteria: | Requests should be directed to scott.rickert@nyulangone.org. To gain access, data requestors will need to sign a data access agreement. |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | Yes |
COVID-19 Pneumonia, Viral Pneumonia Respiratory Tract Infections Infections Virus Diseases Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections |
Lung Diseases Respiratory Tract Diseases Chlorhexidine Povidone-Iodine Povidone Anti-Infective Agents, Local Anti-Infective Agents Disinfectants Plasma Substitutes Blood Substitutes |