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Povidone Iodine Mouthwash, Gargle, and Nasal Spray to Reduce Naso- Pharyngeal Viral Load in Patients With COVID-19

Povidone Iodine Mouthwash, Gargle, and Nasal Spray to Reduce Naso- Pharyngeal Viral Load in Patients With SARS-CoV-2

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04371965
Acronym
KILLER
Enrollment
24
Registered
2020-05-01
Start date
2020-09-01
Completion date
2020-10-23
Last updated
2020-10-26

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

Conditions

COVID-19

Keywords

SARS-CoV-2, Povidone Iodine decolonization

Brief summary

The SARS-CoV-2 coronavirus pandemic is responsible for more than 180,000 deaths worldwide and 20,000 deaths in France. To date, no treatment or vaccine has been successful. Povidone-iodine is an antiseptic suitable for use on the skin and mucosa with potent virucidal activity, particularly against coronaviruses. It is marketed for oro-nasopharyngeal decolonization. 24 patients with positive nasopharyngeal SARS-CoV-2 carriage will be randomized (1:1) in an experimental group (benefiting from povidone iodine decolonization) or a control group. Patients in the experimental group will be asked to gargle with a 1% povidone-iodine solution, spray their nose with the same antiseptic solution, and finally applied 10% povidone-iodine cream in each nostril, all four times a day for five days. Patients will be followed for 7 days to evaluate the efficacy and safety of povidone iodine decolonization.

Interventions

DRUGPovidone-Iodine

Patients in the experimental group will be asked to gargle with a 1% povidone-iodine solution, spray their nose with the same antiseptic solution, and finally applied 10% povidone-iodine cream in each nostril, all four times a day for five days.

Sponsors

Poitiers University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Randomized controlled open label trial, parallel design

Eligibility

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

Inclusion criteria

* Adults (age over 18 yrs) of both sexes * With positive SARS-CoV-2 carriage by RT-PCR * Having given their written consent after having been informed

Exclusion criteria

* Patient with low viral load (threshold cycle \[Ct\] \> 25 per RT-PCR), * Patient unable to perform oro-nasopharyngeal decolonization * Known hypersensitivity to one of the constituents, particularly to povidone-iodine, * History of dysthyroidism, * Known coagulopathy, * Participation in another clinical trial aimed at reducing viral load in patients with SARS-CoV-2, * Pregnant or breastfeeding women, or women of childbearing age without effective contraception * Patients not covered by a social security scheme * Patients with enhanced protection

Design outcomes

Primary

MeasureTime frame
Change from baseline naso-pharyngeal viral load quantified by RT-PCR at Day7Day 7

Secondary

MeasureTime frame
Delay between inclusion and negativation of SARS-CoV-2 nasopharyngeal cell culturesDay0, Day1, Day3, Day5 and Day7
Thyroid tests at Day0 and Day7Day0 and Day7
Delay between inclusion and negativation of SARS-CoV-2 nasopharyngeal carriageDay0, Day1, Day3, Day5 and Day7
Daily presence of clinical signs in favour of COVID-19, including respiratory distress using NYHA scale, chest pain, anosmia, agueusia, tiredness, cough, stiffness, nasal congestion, dysphagia and diarrheaDay0, Day1, Day3, Day5 and Day7
Need for ward or intensive care hospitalizationDay0, Day1, Day3, Day5 and Day7
Patient satisfaction at Day7 using a numerical comfort scale, graduated from 0 (any discomfort) to 10 (maximum possible discomfort)Day7

Countries

France

Outcome results

None listed

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