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Silver gel takes on purell in hand bacteria showdown

NCT ID NCT00659204

Disease control Sponsor: Madigan Army Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

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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
The trial has finished. Results may not be published yet.
Stopped early This study
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This status has not been confirmed recently, so it may be out of date.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 Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether a silver nanoparticle gel (SilvaSorb®) could kill bacteria on hands better than a common alcohol-based hand gel (Purell). Healthy volunteers had their hands seeded with a harmless bacteria, then used one of the gels. The trial was terminated early and only included 22 people, so the results are not conclusive.

What this could mean

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

Active substance
Silver nanoparticle gel (SilvaSorb®)
What this could lead to
If effective, this gel could offer an alternative to alcohol-based hand sanitizers for reducing bacteria on hands.
What could go wrong
The trial was terminated early with only 22 participants, so results are limited. It is a small pilot study, not a large-scale test.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

22 people

The number who actually took part.

Started

Jan 2008

Finished

Aug 2008

Lead sponsor

A government agency

The lead sponsor is a US federal agency other than the NIH.

Who can take part

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

Ages

19 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Age \> 18 years old * Ability to read and understand English (for consent purposes) * Free of clinically evident dermatitis, open wounds, sores, or breaks in hand skin determined by a Visual Skin Scale (VSS). * Free of hand jewelry or artificial nail enhancements * Have fingernails that are clean and extend no longer than approximately one (1) mm past the nail bed Exclusion Criteria: * Anyone directly working in a healthcare, public health, or long term residence setting. * Currently receiving any antibiotics, or on any other in as investigational drug, steroids or immunosuppressive therapy. * Reports cuts, scratches, or skin disorders, or Dermatitis visualized by the PI/AI using the Visual Skin Scale (VSS). * Reports any form of current immune disorders such as AIDS, lupus, any cancers (solid or hematopoietic), or other medical conditions such as diabetes, hepatitis, rheumatoid arthritis, or an organ transplant recipient. * Known sensitivities or allergies to silver, alcohol, latex, soap, detergent, antibiotics. * Any use of artificial nail enhancements or any non-removable rings * Primary care provider or resident in a setting where someone has known impaired immunocompetence (currently receiving chemotherapy, HIV positive), requires wound care or intravenous management. * Currently pregnant/lactating or taking care of children under the age of 3 or anyone that requires diaper changing.

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As listed by the trial registrant

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

Healthy

Contacts and locations

Locations

  • Madigan Army Medical Center

    Tacoma, Washington, 98431, United States

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