Voltaren gel study: rubbing it in by hand vs. using an applicator
NCT ID NCT06954181
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study measured how much of the pain-relief gel Voltaren (diclofenac) ends up in rinse water after washing. 33 healthy adults applied the gel either by hand or with an applicator, then washed or wiped the area. Researchers tested the rinse water to see how much drug was lost. The goal was to understand if application method affects drug waste.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- diclofenac gel (Voltaren)
- What this could lead to
- If successful, this could help understand how much medication is wasted during application, potentially leading to better dosing instructions.
- What could go wrong
- This is a small, completed study in healthy people, not a treatment trial. Results may not apply to patients or real-world use.
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
-
33 people
The number who actually took part.
- Started
-
Mar 2025
- Finished
-
Apr 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
-
18 to 70 years
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * Written informed consent to participate in the study. * Willingness to actively participate in the study and to come to the scheduled visits. * Female and/or male. * From 18 to 70 years of age. Exclusion Criteria: * Female participants: Pregnancy or lactation. * Drug addicts, alcoholics. * Acquired immunodeficiency syndrome (AIDS), human immunodeficiency virus (HIV)-positive or infectious hepatitis. * Conditions which exclude a participation or might influence the test reaction/evaluation. * Participation or being in the waiting period after participation in cosmetic and/or pharmaceutical studies pertaining to the test area. * Cancer not being diagnosed as cured and requiring chemotherapy, irradiation and/or hormonal treatment within the last 2 years. * A previous allergic reaction, sensitivity or intolerance to diclofenac or any of the other ingredients in Voltaren® Schmerzgel forte. * Participants in whom asthma, angioedema, urticaria or acute rhinitis are precipitated by acetyl salicylic acid or other non-steroidal anti-inflammatory drugs (example, ibuprofen, naproxen et cetera). * Documented allergies to cosmetic products. * Active skin disease at the test area. * Wounds, moles, tattoos, scars, irritated skin, excessive hair growth, et cetera, at the test area that could influence the investigation. * Any topical medication at the test area within the last 3 days prior to the start of the study.
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Genom att skicka in godkänner du våra Användarvillkor
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
SGS proderm GmbH
Schenefeld, 22869, Germany
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