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Can a simple seawater spray tame cold and sinus misery?

NCT ID NCT06498843

Symptom relief Sponsor: YSLab Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This trial tests whether two nasal pump sprays made from diluted seawater can safely ease symptoms of colds, rhinitis, sinusitis, and other upper respiratory infections. Participants, from 3 months old, will use one of the sprays for 7 days while doctors track symptom severity and overall improvement. The goal is to see if these drug-free sprays offer a simple way to reduce discomfort from common respiratory ailments.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
isotonic or hypertonic diluted seawater nasal spray
What this could lead to
If effective, these nasal sprays could offer a simple, drug-free way to ease symptoms of colds, rhinitis, and sinusitis for all ages.
What could go wrong
This is a small, early-stage trial, and results may not apply to everyone. The sprays are unlikely to cure infections and may only provide mild symptom relief.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

89 people

The number who actually took part.

Started

Mar 2025

Finished

May 2025

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

3 months and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Autonomous adult, or minor with the consent of their legal representative * Adults and children from 3 months old * Ability of the patient (for adults) or their legal representative (for children) to follow the instructions for product use * Having signed a free and informed consent to participate in the study expressed by the patient (for adults) or by their legal representative (for children) after being informed by the doctor. * Person with an upper respiratory tract infection (cold, rhinitis, rhinopharyngitis…) with symptoms of nasal congestion and nasal discharge of moderate to severe intensity (Jackson derived score (nasal congestion + nasal discharge) ≥ 4 on Day 0). * Persons with symptoms that started no more than 48 hours before the first visit Exclusion Criteria: * Person not showing cold symptoms, particularly no nasal congestion (chronic dry rhinitis, or Jackson derived score (nasal congestion + nasal discharge) \< 4 on Day 0). * Person undergoing treatment with a cortisone derivative, mucolytic, or medication containing pseudoephedrine or a similar product acting on nasal congestion or having used such a product within the 3 days preceding inclusion. * Person having used a nasal wash product within the 3 days preceding inclusion. * Person whose ability to use the product daily and complete the daily follow-up diary is in doubt. * Person refusing to sign the informed consent form prior to the study. * Person participating or having participated in any other clinical study within the 30 days preceding the study. * Person participating in any other clinical study.

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Conditions

The condition(s) this trial relates to.

common cold respiratory tract infectious disorder rhinitis sinusitis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

COLDS Rhinitis Sinusitis Upper respiratory infections

Contacts and locations

Locations

  • Eurofins Dermscan Poland

    Gdansk, Poland

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